:root {
  --primary: #3255d9;
  --primary-dark: #243da6;
  --secondary: #6f7df4;
  --accent: #12a594;
  --bg: #f4f7fc;
  --surface: #ffffff;
  --text: #172033;
  --muted: #6f7890;
  --border: #e3e8f2;
  --danger: #c83349;
  --success: #16865f;
  --warning: #b56b00;
  --shadow: 0 16px 45px rgba(38, 55, 105, 0.12);
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Noto Sans Thai", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.full-width { width: 100%; }

.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-content: center;
  justify-items: center;
  background: rgba(244, 247, 252, 0.88);
  backdrop-filter: blur(5px);
}
.spinner {
  width: 42px;
  height: 42px;
  border: 4px solid #dbe2ff;
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.login-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
}
.login-hero {
  padding: clamp(40px, 8vw, 110px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: white;
  background:
    radial-gradient(circle at 15% 20%, rgba(255,255,255,.22), transparent 28%),
    radial-gradient(circle at 80% 70%, rgba(18,165,148,.35), transparent 35%),
    linear-gradient(145deg, #223999, #3a5de0 52%, #5c6df0);
  position: relative;
  overflow: hidden;
}
.login-hero::after {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 50%;
  right: -90px;
  bottom: -90px;
  box-shadow: 0 0 0 48px rgba(255,255,255,.04), 0 0 0 96px rgba(255,255,255,.025);
}
.brand-badge {
  width: fit-content;
  padding: 8px 14px;
  border: 1px solid rgba(255,255,255,.4);
  border-radius: 999px;
  font-size: .8rem;
  letter-spacing: .08em;
  background: rgba(255,255,255,.08);
}
.login-hero h1 { margin: 26px 0 0; font-size: clamp(3rem, 7vw, 6.2rem); line-height: .98; }
.hero-subtitle { margin: 10px 0 28px; font-size: 1.2rem; opacity: .85; }
.login-hero > p:not(.hero-subtitle) { font-size: 1.15rem; line-height: 1.8; max-width: 650px; }
.hero-features { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 25px; font-weight: 500; }

.login-panel { display: grid; place-items: center; padding: 32px; background: #f7f9fd; }
.login-card { width: min(420px, 100%); padding: 42px; background: var(--surface); border-radius: 24px; box-shadow: var(--shadow); }
.college-mark {
  width: 64px; height: 64px; display: grid; place-items: center; border-radius: 18px;
  color: white; font-weight: 700; background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 12px 24px rgba(50, 85, 217, .26);
}
.login-card h2 { margin: 24px 0 4px; font-size: 1.7rem; }
.login-card label, .form-panel label { display: block; margin: 18px 0 7px; font-weight: 600; font-size: .93rem; }
input, textarea, select {
  width: 100%; border: 1px solid var(--border); border-radius: 12px; background: white;
  padding: 12px 14px; color: var(--text); outline: none; transition: .2s;
}
input:focus, textarea:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(50,85,217,.1); }
.password-wrap { position: relative; }
.password-wrap input { padding-right: 48px; }
.icon-button {
  position: absolute; right: 6px; top: 5px; border: 0; border-radius: 10px;
  background: transparent; padding: 8px; cursor: pointer;
  transition: background .15s ease, transform .15s ease;
}
.icon-button:hover { background: rgba(23,62,99,.08); }
.icon-button:active { transform: scale(.94); }
.icon-button:focus-visible { outline: 3px solid rgba(244,122,32,.25); outline-offset: 1px; }
.password-review-hint { margin-top: -2px; margin-bottom: 4px; }
.primary-button, .outline-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  border-radius: 12px;
  padding: 11px 18px;
  font-weight: 600;
  transition: .2s;
}
.primary-button { border: 0; color: white; background: linear-gradient(135deg, var(--primary), var(--secondary)); box-shadow: 0 8px 20px rgba(50,85,217,.22); }
.primary-button:hover { transform: translateY(-1px); box-shadow: 0 11px 24px rgba(50,85,217,.28); }
.login-card .primary-button { margin-top: 24px; }
.outline-button { border: 1px solid var(--border); color: var(--text); background: white; }
.form-message { min-height: 1.4em; margin: 12px 0 0; color: var(--danger); font-size: .9rem; }
.form-message.success { color: var(--success); }
.login-help { color: var(--muted); font-size: .82rem; text-align: center; margin-top: 24px; }
.login-card .auth-switch-button { width: 100%; }
.login-card a.auth-switch-button { display: flex; }

.app-shell { min-height: 100vh; display: grid; grid-template-columns: 260px 1fr; }
.sidebar {
  position: fixed; inset: 0 auto 0 0; width: 260px; z-index: 50;
  display: flex; flex-direction: column; padding: 24px 18px; color: white;
  background: linear-gradient(180deg, #1e3186, #2b49be 70%, #263da0);
}
.sidebar-brand { display: flex; align-items: center; gap: 12px; padding: 4px 8px 26px; }
.sidebar-logo { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 14px; background: white; color: var(--primary); font-size: 1.35rem; font-weight: 800; }
.sidebar-brand strong, .sidebar-brand small { display: block; }
.sidebar-brand small { opacity: .7; }
.nav-menu { display: grid; gap: 8px; }
.nav-item {
  width: 100%; padding: 12px 14px; display: flex; gap: 12px; align-items: center;
  border: 0; border-radius: 12px; color: rgba(255,255,255,.78); background: transparent; text-align: left;
}
.nav-item:hover, .nav-item.active { color: white; background: rgba(255,255,255,.14); }
.sidebar-footer { margin-top: auto; display: grid; gap: 2px; padding: 16px 8px 4px; opacity: .72; }
.main-area { grid-column: 2; min-width: 0; }
.topbar {
  position: sticky; top: 0; z-index: 30; min-height: 84px; padding: 15px 28px;
  display: flex; align-items: center; gap: 18px; background: rgba(244,247,252,.9); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(227,232,242,.8);
}
.topbar h2, .topbar p { margin: 0; }
.menu-toggle { display: none; border: 0; background: transparent; font-size: 1.5rem; }
.user-menu { margin-left: auto; display: flex; align-items: center; gap: 11px; }
.avatar { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; color: white; background: linear-gradient(135deg, var(--accent), #48c1b4); font-weight: 700; }
.user-meta strong, .user-meta small { display: block; }
.user-meta small { color: var(--muted); }
.content-area { padding: 28px; }
.view-section { max-width: 1450px; margin: 0 auto; }
.welcome-card {
  min-height: 190px; padding: 36px; display: flex; align-items: center; justify-content: space-between;
  border-radius: 24px; color: white; overflow: hidden;
  background: radial-gradient(circle at 80% 20%, rgba(255,255,255,.19), transparent 28%), linear-gradient(125deg, var(--primary-dark), var(--primary), var(--secondary));
  box-shadow: var(--shadow);
}
.welcome-card h1 { margin: 6px 0; font-size: 2.25rem; }
.welcome-card p { margin: 0; opacity: .82; }
.welcome-icon { font-size: 5rem; filter: drop-shadow(0 10px 10px rgba(0,0,0,.12)); }
.eyebrow { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 700; opacity: .85; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin: 22px 0; }
.stat-card { padding: 22px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); box-shadow: 0 8px 24px rgba(38,55,105,.05); }
.stat-card span, .stat-card small { display: block; color: var(--muted); }
.stat-card strong { display: block; margin: 8px 0 2px; font-size: 2rem; }
.two-column-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 22px; }
.panel { padding: 24px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); box-shadow: 0 8px 25px rgba(38,55,105,.055); }
.panel-heading, .section-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.panel-heading h3, .panel-heading p, .section-heading h1, .section-heading p { margin: 0; }
.section-heading { margin-bottom: 22px; }
.section-heading p { color: var(--muted); }
.text-button { border: 0; color: var(--primary); background: transparent; font-weight: 600; }
.empty-state { padding: 28px; text-align: center; color: var(--muted); border: 1px dashed var(--border); border-radius: 14px; }
.course-list { display: grid; gap: 12px; margin-top: 18px; }
.course-item { display: grid; grid-template-columns: 46px 1fr auto; align-items: center; gap: 13px; padding: 13px; border: 1px solid var(--border); border-radius: 14px; }
.course-icon { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 13px; background: #edf0ff; font-weight: 700; color: var(--primary); }
.course-item h4, .course-item p { margin: 0; }
.course-item p { color: var(--muted); font-size: .85rem; }
.progress-bar { width: 105px; height: 7px; border-radius: 999px; background: #edf0f6; overflow: hidden; }
.progress-bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), #54c8bb); }
.announcement-list { display: grid; gap: 12px; margin-top: 18px; }
.announcement-item { padding: 14px; border-left: 4px solid var(--secondary); background: #f6f7ff; border-radius: 0 12px 12px 0; }
.announcement-item h4, .announcement-item p { margin: 0; }
.announcement-item p { color: var(--muted); margin-top: 4px; font-size: .9rem; }
.filter-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.filter-button { border: 1px solid var(--border); background: white; color: var(--text); border-radius: 999px; padding: 8px 14px; }
.filter-button.active { color: white; background: var(--primary); border-color: var(--primary); }
.lesson-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.lesson-card { display: flex; flex-direction: column; min-height: 230px; padding: 22px; border: 1px solid var(--border); border-radius: var(--radius); background: white; box-shadow: 0 8px 25px rgba(38,55,105,.055); }
.lesson-card h3 { margin: 12px 0 6px; }
.lesson-card p { margin: 0; color: var(--muted); line-height: 1.65; }
.lesson-number { width: fit-content; padding: 6px 10px; border-radius: 999px; background: #eef1ff; color: var(--primary); font-size: .8rem; font-weight: 700; }
.lesson-card-footer { margin-top: auto; padding-top: 18px; display: flex; justify-content: space-between; align-items: center; }
.status-pill { padding: 5px 10px; border-radius: 999px; font-size: .78rem; background: #f0f2f7; color: var(--muted); }
.status-pill.done { background: #e4f7f0; color: var(--success); }
.score-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 24px; }
.score-summary > div { padding: 18px; border-radius: 14px; background: #f6f8fc; }
.score-summary span, .score-summary strong { display: block; }
.score-summary strong { font-size: 1.65rem; margin-top: 5px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 13px 12px; border-bottom: 1px solid var(--border); text-align: left; }
th { color: var(--muted); font-size: .88rem; }
.empty-cell { text-align: center; color: var(--muted); padding: 28px; }
.manage-grid { align-items: start; }
.form-panel h3 { margin-top: 0; }
.form-panel .primary-button { margin-top: 20px; }
.check-row { display: flex !important; align-items: center; gap: 8px; font-weight: 400 !important; }
.check-row input { width: auto; }
.lesson-dialog {
  width: min(1000px, calc(100vw - 28px));
  max-height: 92vh;
  overflow-y: auto;
  border: 0;
  border-radius: 26px;
  padding: 0 42px 36px;
  background: #f7f9fd;
  box-shadow: 0 30px 90px rgba(18,27,58,.3);
}
.lesson-dialog::backdrop { background: rgba(18,27,58,.68); backdrop-filter: blur(5px); }
.lesson-reader-progress { position: sticky; z-index: 9; top: 0; height: 5px; margin: 0 -42px; background: #e5e9f4; overflow: hidden; }
.lesson-reader-progress span { display: block; width: 0; height: 100%; background: linear-gradient(90deg, var(--accent), var(--secondary)); transition: width .12s linear; }
.dialog-close { position: sticky; z-index: 10; top: 16px; float: right; width: 40px; height: 40px; border: 0; border-radius: 50%; background: rgba(255,255,255,.94); box-shadow: 0 6px 18px rgba(33,48,94,.15); font-size: 1.6rem; }
.lesson-dialog-header { clear: both; margin: 0 -42px 24px; padding: 46px 52px 34px; color: white; background: radial-gradient(circle at 82% 20%, rgba(255,255,255,.2), transparent 26%), linear-gradient(125deg, #243da6, #3255d9 56%, #6f7df4); }
.lesson-dialog-header h2 { margin: 8px 0 4px; font-size: clamp(1.8rem, 4vw, 2.7rem); line-height: 1.25; }
.lesson-dialog-header .lead { max-width: 760px; color: rgba(255,255,255,.82); }
.lead { color: var(--muted); font-size: 1.05rem; line-height: 1.75; }
.video-frame { width: 100%; aspect-ratio: 16 / 9; border: 0; border-radius: 18px; margin: 4px 0 24px; box-shadow: 0 16px 40px rgba(29,45,98,.14); }
.lesson-toc { margin: 0 0 24px; padding: 20px; border: 1px solid #dce3f5; border-radius: 18px; background: linear-gradient(145deg, #fff, #f3f6ff); }
.lesson-toc > strong { display: block; margin-bottom: 12px; color: var(--primary-dark); }
.lesson-toc > div { display: flex; flex-wrap: wrap; gap: 8px; }
.lesson-toc button { display: inline-flex; align-items: center; gap: 7px; border: 1px solid #dfe5f5; border-radius: 999px; padding: 8px 12px; background: white; color: #35405b; font-size: .84rem; }
.lesson-toc button:hover { color: var(--primary); border-color: #b7c4f4; transform: translateY(-1px); }
.lesson-toc button span { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; color: white; background: var(--primary); font-weight: 700; }
.lesson-content { white-space: normal; line-height: 1.85; margin: 0; }
.rich-section { --section-color: var(--primary); --section-soft: #eef1ff; scroll-margin-top: 18px; margin: 0 0 22px; border: 1px solid var(--border); border-radius: 20px; overflow: hidden; background: white; box-shadow: 0 10px 30px rgba(39,55,104,.06); }
.rich-section.objectives { --section-color: #8a4bd8; --section-soft: #f3eaff; }
.rich-section.case-study { --section-color: #d47a13; --section-soft: #fff1dc; }
.rich-section.activity { --section-color: #087c75; --section-soft: #e4f7f4; }
.rich-section.review { --section-color: #315ec7; --section-soft: #eaf0ff; }
.rich-section.summary { --section-color: #16865f; --section-soft: #e5f7ef; }
.rich-section.warning { --section-color: #bd4c4c; --section-soft: #fff0f0; }
.rich-section.safety { --section-color: #087c75; --section-soft: #e5f7f4; }
.rich-section.components { --section-color: #5c56c9; --section-soft: #eeedff; }
.rich-section.benefits { --section-color: #157a50; --section-soft: #e7f7ef; }
.rich-section-head { display: flex; align-items: center; gap: 14px; padding: 20px 22px; border-bottom: 1px solid color-mix(in srgb, var(--section-color) 20%, white); background: linear-gradient(135deg, var(--section-soft), white); }
.section-icon { width: 48px; height: 48px; flex: 0 0 48px; display: grid; place-items: center; border-radius: 15px; background: white; box-shadow: 0 8px 20px rgba(42,52,91,.1); font-size: 1.35rem; }
.section-kicker { display: block; color: var(--section-color); font-size: .78rem; font-weight: 700; letter-spacing: .04em; }
.rich-section-head h2 { margin: 2px 0 0; color: #1e2940; font-size: 1.35rem; }
.rich-section-body { padding: 22px 24px 24px; }
.rich-section-body p { margin: 0 0 14px; color: #38435b; }
.rich-section-body p:last-child { margin-bottom: 0; }
.rich-subheading { display: flex; align-items: center; gap: 10px; margin: 22px 0 12px; color: #22304d; font-size: 1.08rem; }
.rich-subheading:first-child { margin-top: 0; }
.rich-subheading span { display: inline-grid; place-items: center; min-width: 42px; padding: 4px 8px; border-radius: 999px; color: var(--section-color); background: var(--section-soft); font-size: .78rem; }
.rich-list { display: grid; gap: 9px; margin: 10px 0 18px; padding: 0; list-style: none; counter-reset: lesson-item; }
.rich-list li { position: relative; min-height: 36px; padding: 8px 12px 8px 46px; border-radius: 12px; color: #35405a; background: #f7f9fd; }
.rich-list.ul li::before { content: "✓"; position: absolute; left: 12px; top: 8px; width: 24px; height: 24px; display: grid; place-items: center; border-radius: 8px; color: white; background: var(--section-color); font-size: .75rem; font-weight: 800; }
.rich-list.ol li { counter-increment: lesson-item; }
.rich-list.ol li::before { content: counter(lesson-item); position: absolute; left: 12px; top: 8px; width: 24px; height: 24px; display: grid; place-items: center; border-radius: 50%; color: white; background: var(--section-color); font-size: .75rem; font-weight: 800; }
.binary-visual { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 14px; margin: 18px 0; padding: 18px; border-radius: 18px; color: white; background: linear-gradient(135deg, #16245d, #3255d9, #12a594); text-align: center; }
.binary-visual span { font-size: clamp(2.2rem, 8vw, 4.5rem); font-weight: 800; line-height: 1; }
.binary-visual b { font-size: .9rem; opacity: .88; }
.content-label { width: fit-content; margin: 18px 0 10px; padding: 6px 12px; border-radius: 999px; color: var(--section-color); background: var(--section-soft); font-weight: 700; }
.info-row { display: grid; grid-template-columns: 130px 1fr; gap: 12px; margin-bottom: 9px; padding: 11px 13px; border-radius: 12px; background: #f7f9fd; }
.info-row strong { color: var(--section-color); }
.dialog-actions { position: sticky; bottom: -36px; z-index: 6; display: flex; justify-content: flex-end; margin: 28px -42px -36px; padding: 18px 42px; border-top: 1px solid var(--border); background: rgba(255,255,255,.94); backdrop-filter: blur(10px); }

@media (max-width: 1050px) {
  .login-page { grid-template-columns: 1fr; }
  .login-hero { min-height: 42vh; padding: 55px; }
  .login-hero h1 { font-size: 3.8rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .two-column-grid { grid-template-columns: 1fr; }
  .lesson-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 780px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { transform: translateX(-100%); transition: .25s; }
  .sidebar.open { transform: translateX(0); }
  .main-area { grid-column: 1; }
  .menu-toggle { display: block; }
  .topbar { padding: 12px 16px; }
  .topbar > div:nth-child(2) { display: none; }
  .user-meta { display: none; }
  .content-area { padding: 18px; }
  .welcome-card { padding: 25px; }
  .welcome-icon { font-size: 3rem; }
  .lesson-grid { grid-template-columns: 1fr; }
  .score-summary { grid-template-columns: 1fr; }
}
@media (max-width: 540px) {
  .login-hero { min-height: auto; padding: 38px 25px; }
  .login-hero h1 { font-size: 2.7rem; }
  .hero-features { display: grid; }
  .login-panel { padding: 20px; }
  .login-card { padding: 28px 22px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .stat-card { padding: 16px; }
  .welcome-card h1 { font-size: 1.65rem; }
  .welcome-icon { display: none; }
  .outline-button { padding: 9px 11px; }
}

@media (max-width: 700px) {
  .lesson-dialog { padding: 0 16px 24px; border-radius: 18px; }
  .lesson-reader-progress, .lesson-dialog-header { margin-left: -16px; margin-right: -16px; }
  .lesson-reader-progress { margin-top: 0; }
  .lesson-dialog-header { padding: 42px 22px 26px; }
  .dialog-close { top: 12px; }
  .lesson-toc > div { display: grid; }
  .lesson-toc button { width: 100%; text-align: left; }
  .rich-section-head { align-items: flex-start; padding: 17px; }
  .rich-section-body { padding: 18px; }
  .info-row { grid-template-columns: 1fr; gap: 2px; }
  .dialog-actions { margin: 24px -16px -24px; padding: 14px 16px; }
  .dialog-actions .primary-button { width: 100%; }
}


/* Easy delete management */
.delete-management-panel { margin-top: 22px; }
.delete-management-panel .panel-heading p { margin-top: 4px; color: var(--muted); }
.warning-badge { padding: 7px 11px; border-radius: 999px; color: #a33b3b; background: #fff0f0; font-size: .8rem; font-weight: 700; }
.delete-management-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 20px; }
.delete-management-grid h4 { margin: 0 0 10px; }
.management-list { display: grid; gap: 10px; }
.management-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 14px; border: 1px solid var(--border); border-radius: 14px; background: #fbfcff; }
.management-row strong, .management-row small { display: block; }
.management-row small { margin-top: 4px; color: var(--muted); line-height: 1.45; }
.management-row .management-detail { color: #34415d; }
.danger-button { flex: 0 0 auto; border: 1px solid #cf4545; border-radius: 10px; padding: 9px 12px; color: white; background: #cf4545; font-weight: 700; cursor: pointer; }
.danger-button:hover { filter: brightness(.94); transform: translateY(-1px); }
.danger-button.outline { color: #b83f3f; background: white; }
@media (max-width: 900px) {
  .delete-management-grid { grid-template-columns: 1fr; }
}
@media (max-width: 540px) {
  .management-row { align-items: stretch; flex-direction: column; }
  .danger-button { width: 100%; }
  .warning-badge { display: none; }
}

/* Student self-registration v0.8 */
.auth-switch-button { margin-top: 12px; }
.register-consent { display: flex !important; align-items: flex-start; gap: 10px; line-height: 1.55; font-weight: 500 !important; }
.register-consent input { width: auto; margin-top: 4px; }
.registration-management-panel { margin-top: 22px; }
.registration-management-panel .panel-heading p { margin-top: 4px; color: var(--muted); }
.registration-row { align-items: center; }
.approve-button { flex: 0 0 auto; padding: 10px 14px; }
@media (max-width: 640px) {
  .registration-row { align-items: stretch; }
  .approve-button { width: 100%; }
}

/* Lesson passing settings v1.0 */
.lesson-settings-panel { margin-top: 22px; }
.lesson-settings-panel .panel-heading p { margin-top: 4px; color: var(--muted); max-width: 780px; }
.lesson-settings-form { margin-top: 18px; }
.settings-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.settings-field { display: grid; align-content: start; gap: 7px; }
.settings-field-wide { grid-column: 1 / -1; }
.settings-field label { font-weight: 700; color: #24304a; }
.input-suffix { display: grid; grid-template-columns: 1fr auto; align-items: stretch; }
.input-suffix input { border-radius: 12px 0 0 12px; }
.input-suffix span { min-width: 48px; display: grid; place-items: center; border: 1px solid var(--border); border-left: 0; border-radius: 0 12px 12px 0; color: var(--primary-dark); background: #f4f6ff; font-weight: 800; }
.settings-checks { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 18px 0; }
.settings-check { margin: 0; padding: 13px 14px; border: 1px solid var(--border); border-radius: 13px; background: #f8faff; font-weight: 650 !important; }
.settings-check input { width: auto; }
.settings-preview { margin: 0 0 18px; padding: 16px 18px; border: 1px solid #dbe2f7; border-radius: 15px; color: #33405d; background: linear-gradient(135deg, #f7f9ff, #eef3ff); line-height: 1.75; }
.settings-preview strong { color: var(--primary-dark); }
.settings-preview .settings-summary-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.settings-summary-chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px; color: #34415e; background: white; border: 1px solid #dce3f5; font-size: .82rem; font-weight: 700; }
.lesson-lock-note { margin-top: 10px; color: #9b4b22; font-size: .84rem; }
@media (max-width: 760px) {
  .settings-grid, .settings-checks { grid-template-columns: 1fr; }
  .settings-field-wide { grid-column: auto; }
}
.lesson-card-locked { opacity: .72; background: #f6f7fb; }
.lesson-card-locked .lesson-number { background: #eceef5; color: #737b91; }
.lesson-card-locked .text-button:disabled { cursor: not-allowed; color: #8a91a5; transform: none; }

/* =========================================================
   NBCC MODERN EDUCATION THEME v1.1
   สีประจำวิทยาลัย: ส้ม · ขาว · เทา พร้อมน้ำเงินเข้มเพื่อการอ่าน
   ========================================================= */
:root {
  --primary: #f47a20;
  --primary-dark: #c94f08;
  --secondary: #ffad52;
  --accent: #173b63;
  --accent-2: #0f2741;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --text: #182235;
  --muted: #6c7685;
  --border: #e2e7ec;
  --danger: #c53d49;
  --success: #12835f;
  --warning: #b56b00;
  --shadow: 0 18px 50px rgba(25, 43, 69, .10);
  --shadow-soft: 0 8px 28px rgba(25, 43, 69, .07);
  --radius: 20px;
}

body {
  font-family: "Noto Sans Thai", system-ui, sans-serif;
  background:
    radial-gradient(circle at 90% 0%, rgba(244,122,32,.08), transparent 28%),
    var(--bg);
}
h1, h2, h3, h4, .sidebar-brand strong, .primary-button, .outline-button, .nav-item {
  font-family: "Prompt", "Noto Sans Thai", system-ui, sans-serif;
}

/* หน้าเข้าสู่ระบบ */
.login-page { grid-template-columns: minmax(0, 1.1fr) minmax(420px, .9fr); }
.login-hero {
  isolation: isolate;
  background:
    linear-gradient(rgba(15,39,65,.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px),
    radial-gradient(circle at 18% 18%, rgba(255,255,255,.25), transparent 24%),
    radial-gradient(circle at 80% 74%, rgba(255,187,113,.35), transparent 34%),
    linear-gradient(135deg, #0f2741 0%, #173b63 48%, #f47a20 145%);
  background-size: 38px 38px, 38px 38px, auto, auto, auto;
}
.login-hero::before {
  content: "NBCC";
  position: absolute;
  z-index: -1;
  right: -1vw;
  top: 8vh;
  font: 700 clamp(8rem, 22vw, 20rem)/1 "Prompt", sans-serif;
  letter-spacing: -.06em;
  color: rgba(255,255,255,.035);
  transform: rotate(-8deg);
}
.login-hero::after {
  width: 440px;
  height: 440px;
  border-color: rgba(255,255,255,.16);
  box-shadow: 0 0 0 58px rgba(255,255,255,.035), 0 0 0 116px rgba(255,255,255,.02);
}
.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  border-color: rgba(255,255,255,.28);
  background: rgba(255,255,255,.10);
  backdrop-filter: blur(10px);
}
.brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ffb36f;
  box-shadow: 0 0 0 5px rgba(255,179,111,.16);
}
.login-hero h1 {
  max-width: 760px;
  margin-top: 30px;
  font-family: "Prompt", sans-serif;
  font-size: clamp(3.5rem, 7vw, 6.5rem);
  letter-spacing: -.035em;
}
.hero-subtitle { color: #ffca98; font-weight: 500; letter-spacing: .02em; }
.hero-features span {
  padding: 9px 13px;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(8px);
}
.login-panel {
  background:
    radial-gradient(circle at 100% 0%, rgba(244,122,32,.10), transparent 34%),
    linear-gradient(180deg, #f9fafb, #f3f5f7);
}
.login-card {
  position: relative;
  overflow: hidden;
  padding: 44px;
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 28px;
  box-shadow: 0 28px 70px rgba(22,39,62,.15);
}
.login-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 5px;
  background: linear-gradient(90deg, var(--primary), #ffb15d, var(--accent));
}
.college-mark {
  width: 78px;
  height: 78px;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-radius: 24px 24px 24px 8px;
  background: linear-gradient(145deg, var(--primary), #ff9c42);
  box-shadow: 0 14px 30px rgba(244,122,32,.27);
}
.college-mark span { font: 700 1.12rem/1 "Prompt", sans-serif; letter-spacing: .02em; }
.college-mark small { font: 600 .48rem/1 "Prompt", sans-serif; letter-spacing: .12em; opacity: .82; }
.login-card h2 { font-size: 1.9rem; color: var(--accent-2); }
input, textarea, select {
  min-height: 48px;
  border-radius: 14px;
  border-color: #dfe5eb;
  background: #fbfcfd;
}
textarea { min-height: 110px; }
input:hover, textarea:hover, select:hover { border-color: #cbd4de; }
input:focus, textarea:focus, select:focus {
  border-color: var(--primary);
  background: white;
  box-shadow: 0 0 0 4px rgba(244,122,32,.12);
}
.primary-button {
  min-height: 46px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary) 58%, #ff9d43);
  box-shadow: 0 10px 24px rgba(244,122,32,.24);
}
.primary-button:hover { box-shadow: 0 14px 30px rgba(244,122,32,.30); }
.outline-button { border-color: #d8dee5; background: rgba(255,255,255,.86); }
.outline-button:hover { border-color: rgba(244,122,32,.45); color: var(--primary-dark); background: #fff8f1; }
.auth-switch-button { margin-top: 10px; }
.forgot-password-button {
  display: block;
  width: fit-content;
  margin: 9px 0 0 auto;
  padding: 4px 2px;
  border: 0;
  color: #d95e0b;
  background: transparent;
  font: inherit;
  font-size: .88rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: underline;
  text-decoration-color: rgba(217,94,11,.35);
  text-underline-offset: 4px;
}
.forgot-password-button:hover { color: #a94408; text-decoration-color: currentColor; }
.forgot-password-button:focus-visible {
  outline: 3px solid rgba(244,122,32,.22);
  outline-offset: 3px;
  border-radius: 6px;
}
.password-reset-note {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: start;
  margin-top: 18px;
  padding: 13px 14px;
  border: 1px solid #dce6f0;
  border-radius: 14px;
  background: #f5f8fb;
  color: #53657a;
}
.password-reset-note span { font-size: 1.15rem; }
.password-reset-note p { margin: 0; font-size: .84rem; line-height: 1.65; }
#forgotPasswordForm .primary-button { margin-top: 20px; }
#sendPasswordResetButton:disabled { opacity: .68; cursor: wait; transform: none; }

/* โครงระบบหลัก */
.app-shell { grid-template-columns: 276px 1fr; }
.sidebar {
  width: 276px;
  padding: 26px 18px;
  background:
    radial-gradient(circle at 30% 5%, rgba(244,122,32,.24), transparent 24%),
    linear-gradient(180deg, #102b48, #0c223a 72%, #081a2c);
  box-shadow: 12px 0 35px rgba(16,39,65,.12);
}
.sidebar::after {
  content: "";
  position: absolute;
  inset: auto 18px 86px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.18), transparent);
}
.sidebar-brand { padding: 2px 8px 30px; }
.sidebar-logo {
  width: 50px;
  height: 50px;
  border-radius: 18px 18px 18px 6px;
  color: white;
  background: linear-gradient(145deg, var(--primary), #ff9d43);
  box-shadow: 0 12px 26px rgba(244,122,32,.27);
}
.sidebar-logo span { font: 700 1rem/1 "Prompt", sans-serif; letter-spacing: -.03em; }
.sidebar-brand strong { font-size: .98rem; }
.sidebar-brand small { margin-top: 3px; font-size: .72rem; letter-spacing: .025em; opacity: .62; }
.nav-menu { gap: 7px; }
.nav-item {
  position: relative;
  min-height: 48px;
  gap: 13px;
  padding: 12px 15px;
  border-radius: 14px;
  color: rgba(255,255,255,.72);
  font-weight: 500;
}
.nav-item::before {
  content: "";
  position: absolute;
  left: 0;
  width: 4px;
  height: 0;
  border-radius: 999px;
  background: #ff9a42;
  transition: .2s;
}
.nav-item:hover { background: rgba(255,255,255,.07); }
.nav-item.active {
  color: white;
  background: linear-gradient(90deg, rgba(244,122,32,.25), rgba(255,255,255,.08));
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.06);
}
.nav-item.active::before { height: 28px; }
.sidebar-footer {
  padding: 18px 10px 6px;
  border-radius: 14px;
  background: rgba(255,255,255,.045);
  opacity: .82;
}
.main-area { grid-column: 2; }
.topbar {
  min-height: 82px;
  padding: 14px 30px;
  background: rgba(250,251,252,.90);
  border-bottom-color: rgba(218,225,232,.82);
  box-shadow: 0 6px 22px rgba(31,45,65,.035);
}
.topbar h2 { color: var(--accent-2); font-size: 1.25rem; }
.avatar {
  width: 44px;
  height: 44px;
  background: linear-gradient(145deg, var(--accent), #2e628f);
  box-shadow: 0 8px 20px rgba(23,59,99,.20);
}
.content-area { padding: 30px; }
.view-section { max-width: 1500px; }

/* Dashboard */
.welcome-card {
  min-height: 210px;
  position: relative;
  isolation: isolate;
  padding: 40px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 28px;
  background:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px),
    radial-gradient(circle at 85% 22%, rgba(255,170,89,.30), transparent 28%),
    linear-gradient(120deg, #102b48, #173b63 58%, #c9530b 150%);
  background-size: 32px 32px, 32px 32px, auto, auto;
  box-shadow: 0 22px 55px rgba(16,43,72,.17);
}
.welcome-card::before {
  content: "NBCC";
  position: absolute;
  z-index: -1;
  right: 22px;
  bottom: -24px;
  font: 700 clamp(5rem, 11vw, 10rem)/1 "Prompt", sans-serif;
  letter-spacing: -.07em;
  color: rgba(255,255,255,.035);
}
.welcome-card h1 { font-size: clamp(2rem, 3vw, 2.65rem); }
.welcome-card p { max-width: 650px; }
.welcome-icon {
  width: 142px;
  height: 142px;
  display: grid;
  align-content: center;
  justify-items: center;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 36px 36px 36px 12px;
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(12px);
  box-shadow: inset 0 1px rgba(255,255,255,.17), 0 16px 36px rgba(0,0,0,.12);
}
.welcome-icon span { font: 700 3.6rem/1 "Prompt", sans-serif; color: #ffb36f; }
.welcome-icon small { margin-top: 8px; font: 600 .65rem/1 "Prompt", sans-serif; letter-spacing: .14em; opacity: .8; }
.stats-grid { gap: 16px; margin: 20px 0 24px; }
.stat-card {
  position: relative;
  overflow: hidden;
  min-height: 142px;
  padding: 22px 22px 20px;
  border: 1px solid #e6eaee;
  border-radius: 20px;
  box-shadow: var(--shadow-soft);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.stat-card::after {
  content: "";
  position: absolute;
  right: -24px;
  top: -24px;
  width: 82px;
  height: 82px;
  border-radius: 50%;
  background: rgba(244,122,32,.07);
}
.stat-card:nth-child(2)::after { background: rgba(23,59,99,.07); }
.stat-card:nth-child(3)::after { background: rgba(18,131,95,.08); }
.stat-card:nth-child(4)::after { background: rgba(155,97,201,.08); }
.stat-card:hover { transform: translateY(-3px); border-color: rgba(244,122,32,.25); box-shadow: 0 16px 34px rgba(25,43,69,.10); }
.stat-card strong { color: var(--accent-2); font-size: 2.2rem; }
.panel {
  border-color: #e5e9ed;
  border-radius: 22px;
  box-shadow: var(--shadow-soft);
}
.panel-heading h3, .section-heading h1 { color: var(--accent-2); }
.section-heading h1 { font-size: clamp(1.7rem, 3vw, 2.15rem); }
.text-button { color: var(--primary-dark); }
.course-item {
  padding: 15px;
  border-color: #e7ebef;
  transition: .2s;
}
.course-item:hover { transform: translateX(3px); border-color: rgba(244,122,32,.30); background: #fffaf6; }
.course-icon {
  color: white;
  background: linear-gradient(145deg, var(--primary), #ff9d43);
  box-shadow: 0 8px 18px rgba(244,122,32,.20);
}
.announcement-item { border-left-color: var(--primary) !important; }

/* บทเรียน */
.filter-row { gap: 9px; }
.filter-row button {
  min-height: 42px;
  padding: 9px 16px;
  border: 1px solid #dfe4e9;
  border-radius: 999px;
  color: #546071;
  background: white;
  box-shadow: 0 5px 14px rgba(22,39,62,.04);
}
.filter-row button.active, .filter-row button:hover {
  color: white;
  border-color: var(--primary);
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}
.filter-row .filter-button {
  max-width: min(100%, 460px);
  white-space: normal;
  text-align: left;
  line-height: 1.45;
}
.lesson-course-hint {
  margin: -5px 0 20px;
  padding: 13px 16px;
  border: 1px dashed #d8dee5;
  border-radius: 13px;
  color: var(--muted);
  background: rgba(255,255,255,.58);
}
.lesson-course-hint.selected {
  border-style: solid;
  border-color: rgba(244,122,32,.24);
  color: var(--accent-2);
  background: #fff8f1;
  font-weight: 700;
}
.lesson-course-empty {
  color: var(--muted);
  font-size: .92rem;
}
.lesson-grid { gap: 20px; }
.lesson-card {
  position: relative;
  overflow: hidden;
  padding: 24px;
  border-color: #e2e7ec;
  border-radius: 22px;
  box-shadow: var(--shadow-soft);
  transition: transform .22s, box-shadow .22s, border-color .22s;
}
.lesson-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 5px;
  background: linear-gradient(90deg, var(--primary), #ffb05f, var(--accent));
}
.lesson-card::after {
  content: "";
  position: absolute;
  right: -48px;
  top: 22px;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: rgba(244,122,32,.055);
}
.lesson-card:hover { transform: translateY(-5px); border-color: rgba(244,122,32,.24); box-shadow: 0 20px 45px rgba(25,43,69,.12); }
.lesson-number { color: var(--primary-dark); background: #fff0e3; }
.lesson-card h3 { position: relative; z-index: 1; color: var(--accent-2); font-size: 1.15rem; }
.status-pill { background: #f0f2f4; }
.status-pill.done { color: #0c7855; background: #e1f5ed; }

/* คะแนนและตาราง */
.score-summary > div {
  border: 1px solid #e5eaee;
  border-radius: 16px;
  background: linear-gradient(145deg, #fff, #f7f8fa);
}
.score-summary strong { color: var(--accent-2); }
table { min-width: 720px; }
th {
  color: #4f5b6a;
  background: #f5f7f8;
  font-family: "Prompt", sans-serif;
  font-weight: 500;
}
tbody tr { transition: background .15s; }
tbody tr:hover { background: #fff8f1; }
th, td { border-bottom-color: #e7ebef; }

/* แบบฟอร์มจัดการ */
.manage-grid { gap: 22px; }
.form-panel {
  position: relative;
  overflow: hidden;
}
.form-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), #ffb05f);
}
.settings-check {
  padding: 12px 14px;
  border: 1px solid #e3e8ed;
  border-radius: 13px;
  background: #fafbfc;
}
.settings-check:has(input:checked) {
  border-color: rgba(244,122,32,.30);
  background: #fff7f0;
}
.settings-preview {
  border-left: 4px solid var(--primary) !important;
  background: #fff8f2 !important;
}
.warning-badge { color: #9d4b00 !important; background: #fff0df !important; }
.management-item { transition: .2s; }
.management-item:hover { border-color: rgba(244,122,32,.25); background: #fffaf6; }

/* หน้าต่างอ่านบทเรียน */
.lesson-dialog { background: #f5f7f9; }
.lesson-reader-progress span { background: linear-gradient(90deg, var(--primary), #ffb05f, var(--accent)); }
.lesson-dialog-header {
  background:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px),
    radial-gradient(circle at 84% 16%, rgba(255,177,94,.30), transparent 27%),
    linear-gradient(125deg, #102b48, #173b63 62%, #c7530b 150%);
  background-size: 30px 30px, 30px 30px, auto, auto;
}
.lesson-toc { border-color: #e2e7ec; background: linear-gradient(145deg, #fff, #f7f8fa); }
.lesson-toc > strong { color: var(--accent-2); }
.lesson-toc button:hover { color: var(--primary-dark); border-color: rgba(244,122,32,.35); }
.lesson-toc button span { background: linear-gradient(145deg, var(--primary-dark), var(--primary)); }
.rich-section { box-shadow: var(--shadow-soft); }
.rich-section-head { background: linear-gradient(135deg, var(--section-soft), #fff); }
.binary-visual { background: linear-gradient(135deg, #102b48, #173b63, #f47a20 145%); }
.dialog-actions { border-top-color: #dde3e8; }

/* สถานะโหลดและรายละเอียดเล็ก ๆ */
.loading-overlay { background: rgba(244,246,248,.90); }
.spinner { border-color: #f1d5bf; border-top-color: var(--primary); }
.empty-state { border-color: #d9e0e6; background: rgba(255,255,255,.52); }
::selection { color: white; background: var(--primary); }
* { scrollbar-width: thin; scrollbar-color: #c5ccd3 transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb { border: 3px solid transparent; border-radius: 999px; background-clip: padding-box; background-color: #bfc7cf; }

@media (max-width: 1050px) {
  .login-page { grid-template-columns: 1fr; }
  .login-hero { min-height: 45vh; }
  .login-hero::before { top: 2vh; }
}
@media (max-width: 780px) {
  .sidebar { width: min(290px, 84vw); }
  .main-area { grid-column: 1; }
  .content-area { padding: 18px; }
  .welcome-card { min-height: 180px; padding: 26px; }
  .welcome-icon { width: 105px; height: 105px; border-radius: 28px 28px 28px 10px; }
  .welcome-icon span { font-size: 2.6rem; }
}
@media (max-width: 540px) {
  .login-hero { padding: 38px 24px 42px; }
  .login-hero h1 { font-size: 2.8rem; }
  .login-card { padding: 32px 24px; border-radius: 24px; }
  .college-mark { width: 66px; height: 66px; border-radius: 20px 20px 20px 7px; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat-card { min-height: auto; }
  .welcome-icon { display: none; }
}

/* =========================================================
   v1.2 — หน้าจัดการนักศึกษา
   ========================================================= */
.student-summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}
.student-summary-card {
  min-height: 112px;
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: linear-gradient(145deg, #fff, #f7f9fc);
  box-shadow: 0 8px 24px rgba(38,55,105,.055);
}
.student-summary-card.active { background: linear-gradient(145deg, #fff, #ecfaf4); }
.student-summary-card.pending { background: linear-gradient(145deg, #fff, #fff7e6); }
.student-summary-card.suspended { background: linear-gradient(145deg, #fff, #fff0f2); }
.student-summary-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  flex: 0 0 48px;
  border-radius: 15px;
  font-size: 1.35rem;
  color: var(--primary-dark);
  background: #edf0ff;
}
.student-summary-card.active .student-summary-icon { color: #087651; background: #daf5e9; }
.student-summary-card.pending .student-summary-icon { color: #9b6500; background: #ffefc7; }
.student-summary-card.suspended .student-summary-icon { color: #a93045; background: #ffe0e5; }
.student-summary-card small,
.student-summary-card strong { display: block; }
.student-summary-card small { color: var(--muted); }
.student-summary-card strong { margin-top: 3px; font: 700 2rem/1 "Prompt", sans-serif; color: var(--text); }

.student-directory-panel { padding: 0; overflow: hidden; }
.student-toolbar {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) 210px auto;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
  background: #fbfcfe;
}
.student-search-wrap { position: relative; }
.student-search-wrap > span {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 1.2rem;
  pointer-events: none;
}
.student-search-wrap input { padding-left: 42px; }
.student-table-wrap { overflow-x: auto; }
.student-table { min-width: 1120px; width: 100%; border-collapse: collapse; }
.student-table th,
.student-table td { padding: 15px 14px; vertical-align: middle; }
.student-table th:first-child,
.student-table td:first-child { padding-left: 20px; }
.student-table th:last-child,
.student-table td:last-child { padding-right: 20px; }
.student-table tbody tr:last-child td { border-bottom: 0; }
.student-identity { display: flex; align-items: center; gap: 12px; min-width: 290px; }
.student-avatar,
.student-detail-avatar {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: white;
  font-family: "Prompt", sans-serif;
  font-weight: 700;
  background: linear-gradient(145deg, var(--primary-dark), var(--primary));
  box-shadow: 0 8px 18px rgba(50,85,217,.20);
}
.student-avatar { width: 42px; height: 42px; border-radius: 13px; }
.student-identity strong,
.student-identity small,
.student-table td > small { display: block; }
.student-identity small,
.student-table td > small { margin-top: 3px; color: var(--muted); }
.student-progress-bar {
  width: 115px;
  height: 7px;
  margin: 5px 0 2px;
  overflow: hidden;
  border-radius: 99px;
  background: #e9edf4;
}
.student-progress-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.status-pill.pending { color: #946000; background: #fff0c9; }
.status-pill.suspended { color: #a62f44; background: #ffe0e6; }
.student-actions-heading { min-width: 270px; }
.student-action-group { display: flex; flex-wrap: wrap; gap: 7px; min-width: 270px; }
.mini-button {
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 7px 10px;
  font-size: .78rem;
  font-weight: 600;
  white-space: nowrap;
  background: white;
  color: var(--text);
  transition: .18s;
}
.mini-button:hover { transform: translateY(-1px); box-shadow: 0 5px 12px rgba(35,51,91,.10); }
.mini-button.view { color: var(--primary-dark); border-color: #cfd7ff; background: #f3f5ff; }
.mini-button.approve,
.mini-button.activate { color: #087651; border-color: #bce7d5; background: #edfaf5; }
.mini-button.suspend { color: #946000; border-color: #f0d69d; background: #fff9e9; }
.mini-button.reset { color: #865100; border-color: #f1d2a3; background: #fff7eb; }
.mini-button.remove { color: #ad2d43; border-color: #f0c2cb; background: #fff4f6; }
.student-directory-panel > .form-message { margin: 0; padding: 0 20px 18px; }

.student-detail-dialog {
  width: min(980px, calc(100vw - 28px));
  max-height: calc(100vh - 32px);
  padding: 0;
  overflow: auto;
  border: 0;
  border-radius: 24px;
  color: var(--text);
  background: #f6f8fb;
  box-shadow: 0 28px 90px rgba(16,32,65,.30);
}
.student-detail-dialog::backdrop { background: rgba(16,29,55,.58); backdrop-filter: blur(4px); }
.student-detail-dialog .dialog-close { position: fixed; margin: 15px 0 0 min(920px, calc(100vw - 85px)); z-index: 3; }
.student-detail-header {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 32px 34px;
  color: white;
  background: radial-gradient(circle at 85% 20%, rgba(255,255,255,.18), transparent 25%), linear-gradient(125deg, var(--primary-dark), var(--primary), var(--secondary));
}
.student-detail-avatar { width: 72px; height: 72px; border-radius: 22px; font-size: 1.8rem; background: rgba(255,255,255,.18); box-shadow: none; }
.student-detail-header h2,
.student-detail-header p { margin: 0; }
.student-detail-header h2 { margin: 4px 0; font-size: 1.65rem; }
.student-detail-header .status-pill { display: inline-block; margin-top: 10px; }
.student-detail-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding: 20px 24px 0;
}
.student-detail-stats article,
.student-profile-grid > div {
  padding: 17px;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: white;
}
.student-detail-stats small,
.student-detail-stats strong,
.student-detail-stats span,
.student-profile-grid small,
.student-profile-grid strong { display: block; }
.student-detail-stats small,
.student-detail-stats span,
.student-profile-grid small { color: var(--muted); }
.student-detail-stats strong { margin: 6px 0 2px; font-size: 1.45rem; }
.student-detail-stats .detail-date { font-size: .95rem; line-height: 1.5; }
.student-profile-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding: 12px 24px 0;
}
.student-profile-grid strong { margin-top: 5px; }
.uid-text { overflow-wrap: anywhere; font-size: .78rem; }
.student-result-title { margin: 24px 24px 10px; }
.student-detail-table-wrap { margin: 0 24px 26px; overflow-x: auto; border: 1px solid var(--border); border-radius: 15px; background: white; }
.student-detail-table-wrap table { min-width: 720px; }

@media (max-width: 1150px) {
  .student-summary-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .student-detail-stats,
  .student-profile-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .student-toolbar { grid-template-columns: 1fr; }
  .student-toolbar .status-pill { justify-self: start; }
  .student-summary-grid { grid-template-columns: 1fr 1fr; }
  .student-summary-card { min-height: 92px; padding: 15px; }
  .student-detail-header { padding: 28px 22px; align-items: flex-start; }
  .student-detail-stats,
  .student-profile-grid { grid-template-columns: 1fr; padding-left: 16px; padding-right: 16px; }
  .student-result-title { margin-left: 16px; margin-right: 16px; }
  .student-detail-table-wrap { margin-left: 16px; margin-right: 16px; }
  .student-detail-dialog .dialog-close { position: absolute; right: 12px; top: 10px; margin: 0; }
}
@media (max-width: 480px) {
  .student-summary-grid { grid-template-columns: 1fr; }
  .student-detail-avatar { width: 56px; height: 56px; border-radius: 17px; }
  .student-detail-header h2 { font-size: 1.25rem; padding-right: 35px; }
}

/* =========================================================
   v1.3 — เลือกและแก้ไขสาขาวิชา
   ========================================================= */
.form-hint {
  display: block;
  margin-top: 7px;
  font-size: .8rem;
  line-height: 1.55;
}

.student-program-panel {
  margin-bottom: 20px;
  padding: 20px;
  border: 1px solid #dce3ff;
  background:
    radial-gradient(circle at 92% 18%, rgba(111,125,244,.16), transparent 28%),
    linear-gradient(145deg, #ffffff, #f6f8ff);
}
.student-program-info {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
}
.student-program-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  font-size: 1.45rem;
  background: #e9edff;
  box-shadow: inset 0 0 0 1px rgba(50,85,217,.08);
}
.student-program-info h3,
.student-program-info p { margin: 0; }
.student-program-info h3 { margin-top: 2px; }
.program-badge {
  max-width: 360px;
  padding: 8px 13px;
  border: 1px solid #cdd6ff;
  border-radius: 999px;
  color: var(--primary-dark);
  background: #eef1ff;
  font-size: .86rem;
  font-weight: 700;
  text-align: center;
}
.program-badge.empty {
  color: var(--muted);
  border-color: var(--border);
  background: #f6f7fa;
}
.student-program-controls {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto;
  gap: 12px;
  margin-top: 18px;
}
.student-program-controls .primary-button { min-width: 180px; }

.student-toolbar {
  grid-template-columns: minmax(260px, 1fr) 180px 230px auto;
}
.student-program-text {
  color: var(--primary-dark) !important;
  font-weight: 600;
}
.mini-button.edit {
  color: #6b45a8;
  border-color: #d8c9ed;
  background: #f8f3ff;
}

.student-program-dialog {
  width: min(540px, calc(100vw - 28px));
  padding: 0;
  border: 0;
  border-radius: 22px;
  color: var(--text);
  background: white;
  box-shadow: 0 28px 90px rgba(16,32,65,.30);
}
.student-program-dialog::backdrop {
  background: rgba(16,29,55,.58);
  backdrop-filter: blur(4px);
}
.student-program-dialog .dialog-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
}
.student-program-form { padding: 30px; }
.student-program-form h2 { margin: 5px 0 2px; }
.student-program-form > p { margin: 0 0 20px; }
.student-program-form label {
  display: block;
  margin: 18px 0 7px;
  font-weight: 700;
}
.dialog-form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 22px;
}
.student-detail-actions {
  display: flex;
  justify-content: flex-end;
  padding: 12px 24px 0;
}

@media (max-width: 900px) {
  .student-toolbar { grid-template-columns: 1fr 1fr; }
  .student-search-wrap { grid-column: 1 / -1; }
  .student-toolbar .status-pill { justify-self: start; }
}
@media (max-width: 700px) {
  .student-program-info { grid-template-columns: auto 1fr; }
  .program-badge { grid-column: 1 / -1; justify-self: start; max-width: 100%; }
  .student-program-controls { grid-template-columns: 1fr; }
  .student-program-controls .primary-button { width: 100%; }
  .student-toolbar { grid-template-columns: 1fr; }
  .student-search-wrap { grid-column: auto; }
  .dialog-form-actions { flex-direction: column-reverse; }
  .dialog-form-actions button { width: 100%; }
  .student-detail-actions { padding-left: 16px; padding-right: 16px; }
}


/* =========================================================
   v1.4 — เลือกและจัดการรุ่นที่ 1–99
   ========================================================= */
.student-program-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}
.cohort-badge {
  color: #8a4c00;
  border-color: #f4c688;
  background: #fff5e8;
}
.student-program-controls {
  grid-template-columns: minmax(240px, 1fr) minmax(150px, .48fr) auto;
}
.student-toolbar {
  grid-template-columns: minmax(250px, 1fr) 165px 220px 140px auto;
}

@media (max-width: 1100px) {
  .student-toolbar {
    grid-template-columns: 1fr 1fr;
  }
  .student-search-wrap {
    grid-column: 1 / -1;
  }
  .student-toolbar .status-pill {
    justify-self: start;
  }
}
@media (max-width: 760px) {
  .student-program-badges {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }
  .student-program-controls,
  .student-toolbar {
    grid-template-columns: 1fr;
  }
  .student-search-wrap {
    grid-column: auto;
  }
}

/* =====================================================
   NBCC LMS v2.0 — Learning Community Features
   ===================================================== */
.sidebar-brand { align-items: center; }
.sidebar-logo-college {
  width: 58px !important;
  height: 66px !important;
  padding: 3px;
  overflow: hidden;
  border-radius: 14px !important;
  background: rgba(255,255,255,.96) !important;
  box-shadow: 0 10px 24px rgba(0,0,0,.17);
}
.sidebar-logo-college img { width: 100%; height: 100%; object-fit: contain; display: block; }
.sidebar-brand > div:last-child { min-width: 0; }
.sidebar-brand strong { font-size: .92rem; line-height: 1.35; }
.sidebar-brand small { font-size: .68rem; line-height: 1.35; }
.college-mark-logo {
  width: 118px !important;
  height: 128px !important;
  margin: 0 auto 12px;
  padding: 5px;
  border-radius: 22px !important;
  background: white !important;
  box-shadow: 0 12px 34px rgba(29,42,90,.15);
}
.college-mark-logo img { width: 100%; height: 100%; object-fit: contain; display: block; }
.feature-view { animation: featureFade .22s ease; }
@keyframes featureFade { from { opacity: .35; transform: translateY(5px); } to { opacity: 1; transform: none; } }
.feature-toolbar {
  display: flex; flex-wrap: wrap; gap: 14px; align-items: end;
  margin-bottom: 18px; padding: 16px 18px; border: 1px solid var(--border);
  border-radius: 16px; background: linear-gradient(135deg,#fff,#f5f7fd);
}
.feature-toolbar label { min-width: min(360px,100%); margin: 0; }
.feature-toolbar select { margin-top: 7px; }
.feature-form { margin-bottom: 20px; }
.feature-form-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; margin: 18px 0; }
.feature-form-grid label { margin: 0; }
.feature-form-grid .wide { grid-column: 1 / -1; }
.resource-grid, .assignment-grid, .discussion-list, .instructor-profile-list { display: grid; gap: 16px; }
.resource-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
.resource-card, .assignment-card, .discussion-card, .instructor-profile-card {
  border: 1px solid var(--border); border-radius: 20px; background: white;
  box-shadow: 0 10px 28px rgba(34,48,95,.065); overflow: hidden;
}
.resource-card { display: flex; flex-direction: column; min-height: 220px; padding: 20px; }
.resource-card .resource-type { display: inline-flex; width: fit-content; align-items: center; gap: 6px; padding: 5px 10px; border-radius: 999px; background:#eef2ff; color:var(--primary); font-size:.78rem; font-weight:700; }
.resource-card h3 { margin: 14px 0 6px; }
.resource-card p { margin: 0; color: var(--muted); line-height: 1.65; }
.resource-preview { margin: 15px 0; border-radius: 14px; overflow: hidden; background:#eef1f7; border:1px solid #e2e7f0; }
.resource-preview iframe { width: 100%; aspect-ratio: 16/9; border:0; display:block; }
.resource-image-preview { position: relative; }
.resource-cover-link { display:block; position:relative; overflow:hidden; }
.resource-cover-link::after { content:"เปิดแหล่งเรียนรู้ ↗"; position:absolute; right:12px; bottom:12px; padding:7px 11px; border-radius:999px; background:rgba(8,36,67,.84); color:white; font-size:.75rem; font-weight:800; opacity:0; transform:translateY(5px); transition:.2s ease; }
.resource-cover-link:hover::after { opacity:1; transform:translateY(0); }
.resource-preview img { width:100%; aspect-ratio:16/9; display:block; object-fit:cover; transition:transform .28s ease; }
.resource-cover-link:hover img { transform:scale(1.035); }
.field-help { display:block; margin-top:7px; color:var(--muted); font-size:.78rem; line-height:1.5; }
.resource-card-actions { margin-top:auto; padding-top:16px; display:flex; gap:8px; flex-wrap:wrap; }

.resource-order-help {
  display:flex; align-items:center; gap:12px; margin:0 0 16px; padding:13px 16px;
  border:1px dashed #f2b27d; border-radius:15px; background:#fff8f1; color:#5f3d21;
}
.resource-order-help > span { font-size:1.35rem; }
.resource-order-help div { display:flex; flex-direction:column; gap:2px; }
.resource-order-help small { color:#8a6549; }
.resource-card-heading { display:flex; justify-content:space-between; align-items:center; gap:10px; }
.resource-order-badge {
  display:inline-flex; align-items:center; white-space:nowrap; padding:5px 9px; border-radius:999px;
  background:#fff3e7; color:#c9590c; font-size:.76rem; font-weight:800; border:1px solid #ffd4b1;
}
.resource-order-button {
  border:1px solid #cfd8e8; background:#f7f9fc; color:#173a62; border-radius:11px;
  padding:10px 12px; font-weight:800; cursor:pointer; transition:.18s ease;
}
.resource-order-button:hover:not(:disabled) { background:#eaf1fb; border-color:#9eb4d1; transform:translateY(-1px); }
.resource-order-button:disabled { opacity:.4; cursor:not-allowed; }

.assignment-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
.assignment-card { padding: 22px; }
.assignment-card.overdue { border-color: #f1b9b9; }
.assignment-card h3 { margin: 10px 0 8px; }
.assignment-card p { color:var(--muted); line-height:1.65; }
.assignment-meta { display:flex; flex-wrap:wrap; gap:8px; margin:12px 0; }
.assignment-status-box { margin:14px 0; padding:12px 14px; border-radius:14px; background:#f6f8fc; }
.assignment-actions { display:flex; flex-wrap:wrap; gap:8px; margin-top:14px; }
.due-chip, .score-chip, .type-chip { display:inline-flex; align-items:center; gap:5px; padding:6px 10px; border-radius:999px; font-size:.78rem; background:#f0f2f7; color:#4a556f; }
.due-chip.overdue { background:#fff0f0; color:#b13e3e; }
.discussion-card { padding:20px; cursor:pointer; transition:.18s ease; }
.discussion-card:hover { transform:translateY(-2px); box-shadow:0 14px 34px rgba(34,48,95,.1); }
.discussion-card h3 { margin:8px 0; }
.discussion-card p { color:var(--muted); margin:0 0 12px; line-height:1.65; }
.discussion-meta { display:flex; gap:10px; flex-wrap:wrap; color:var(--muted); font-size:.82rem; }
.discussion-reply { margin:12px 0; padding:14px 16px; border-left:4px solid #d7def7; border-radius:0 14px 14px 0; background:#f8f9fd; }
.discussion-reply.teacher-reply { border-left-color:var(--secondary); background:#fff8f1; }
.discussion-reply p { margin:6px 0 0; white-space:pre-wrap; }
.discussion-thread-body { white-space: pre-wrap; }
.discussion-inline-replies {
  display: grid;
  gap: 10px;
  margin-top: 16px;
  padding-top: 15px;
  border-top: 1px solid #e5eaf1;
}
.discussion-inline-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: #173e63;
  font-size: .9rem;
}
.discussion-inline-heading span {
  color: var(--muted);
  font-size: .78rem;
  font-weight: 600;
}
.discussion-inline-reply {
  padding: 12px 14px;
  border-left: 4px solid #d7def7;
  border-radius: 0 12px 12px 0;
  background: #f8f9fd;
}
.discussion-inline-reply.teacher-reply {
  border-left-color: var(--secondary);
  background: #fff8f1;
}
.discussion-inline-reply p {
  margin: 6px 0 0;
  color: #27364d;
  white-space: pre-wrap;
  line-height: 1.65;
}
.discussion-no-reply {
  margin-top: 15px;
  padding: 12px 14px;
  border: 1px dashed #dfe5ee;
  border-radius: 12px;
  color: var(--muted);
  background: #fbfcfe;
  font-size: .86rem;
}
.discussion-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 15px;
  padding-top: 12px;
  border-top: 1px solid #edf0f4;
  color: var(--muted);
  font-size: .82rem;
}
.discussion-card-footer strong { color: #d95e0b; }
.feature-dialog {
  width:min(720px,calc(100vw - 28px)); max-height:92vh; overflow:auto;
  border:0; border-radius:24px; padding:30px; background:#f8f9fd;
  box-shadow:0 30px 90px rgba(18,27,58,.33);
}
.feature-dialog-wide { width:min(1080px,calc(100vw - 28px)); }
.feature-dialog::backdrop { background:rgba(18,27,58,.68); backdrop-filter:blur(5px); }
.feature-dialog h2 { margin-top:0; }
.submission-current { margin:14px 0; padding:14px; border-radius:14px; background:#eef7f2; }
.submission-file-link { display:inline-flex; gap:6px; align-items:center; margin-top:8px; }
.submission-review-card { padding:16px; margin:12px 0; border:1px solid var(--border); border-radius:16px; background:white; }
.submission-review-head { display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap; }
.submission-review-actions { display:grid; grid-template-columns:120px 1fr auto; gap:10px; align-items:end; margin-top:14px; }
.instructor-profile-card { display:block; overflow:hidden; }
.instructor-photo-wrap {
  min-height:300px;
  background:
    radial-gradient(circle at 18% 20%, rgba(255,132,38,.16), transparent 30%),
    radial-gradient(circle at 82% 18%, rgba(38,86,145,.18), transparent 32%),
    linear-gradient(145deg,#eef4ff,#fff7ed);
  display:grid;
  place-items:center;
  padding:30px 24px;
  border-bottom:1px solid var(--border);
}
.instructor-photo {
  width:min(240px,72vw);
  height:285px;
  object-fit:cover;
  object-position:center top;
  border-radius:26px;
  border:6px solid rgba(255,255,255,.92);
  background:white;
  box-shadow:0 18px 42px rgba(34,48,95,.18);
}
.instructor-photo.placeholder { display:grid; place-items:center; font-size:4rem; color:var(--primary); }
.instructor-profile-body { padding:28px; }
.instructor-profile-body h2 { margin:0 0 4px; }
.instructor-position { color:var(--secondary); font-weight:700; }
.instructor-summary-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px; margin-top:20px; }
.instructor-info-block { padding:14px; border-radius:14px; background:#f7f8fc; }
.instructor-info-block.wide { grid-column:1/-1; }
.instructor-info-block strong { display:block; margin-bottom:6px; color:var(--primary-dark); }
.instructor-info-block p { margin:0; white-space:pre-wrap; color:#4a556f; line-height:1.7; }
.instructor-contact-list { display:flex; flex-wrap:wrap; gap:8px; margin-top:18px; }
.instructor-contact-list a, .instructor-contact-list span { padding:8px 11px; border-radius:999px; background:#eef2ff; color:var(--primary); text-decoration:none; }
.instructor-edit-form { margin-top:22px; }
.file-upload-progress { margin-top:8px; font-size:.85rem; color:var(--muted); }
.badge-teacher { background:#fff0df; color:#a75a00; }
.badge-student { background:#eaf0ff; color:#315ec7; }
.empty-state.resource-grid, .empty-state.assignment-grid, .empty-state.discussion-list, .empty-state.instructor-profile-list { display:block; }
@media (max-width:1100px) {
  .resource-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .assignment-grid { grid-template-columns:1fr; }
}
@media (max-width:760px) {
  .sidebar-logo-college { width:52px !important; height:60px !important; }
  .feature-form-grid { grid-template-columns:1fr; }
  .feature-form-grid .wide { grid-column:auto; }
  .resource-grid { grid-template-columns:1fr; }
  .instructor-profile-card { display:block; }
  .instructor-photo-wrap { min-height:250px; padding:22px 16px; }
  .instructor-photo { height:250px; }
  .instructor-summary-grid { grid-template-columns:1fr; }
  .instructor-info-block.wide { grid-column:auto; }
  .submission-review-actions { grid-template-columns:1fr; }
}

/* ===== Version 2.4: Course overview and CLO ===== */
.course-info-view { animation: featureFade .22s ease; }
.course-info-toolbar { margin-bottom: 18px; }
.course-info-toolbar label { min-width: min(100%, 420px); }
.course-info-display { display: grid; gap: 18px; margin-bottom: 22px; }
.course-overview-hero {
  position: relative; overflow: hidden; display: grid; grid-template-columns: minmax(0,1fr) auto;
  gap: 24px; align-items: center; padding: 30px; border-radius: 24px; color: #fff;
  background: linear-gradient(125deg, #102f51 0%, #1f537d 63%, #c96835 100%);
  box-shadow: 0 22px 50px rgba(20,47,77,.18);
}
.course-overview-hero::after {
  content: "CLO"; position: absolute; right: 26px; bottom: -28px; font-size: 8rem;
  font-weight: 900; color: rgba(255,255,255,.055); pointer-events: none;
}
.course-overview-hero h2 { position: relative; z-index: 1; margin: 8px 0 10px; font-size: clamp(1.7rem,3vw,2.6rem); }
.course-overview-hero p { position: relative; z-index: 1; margin: 0; max-width: 780px; line-height: 1.8; color: rgba(255,255,255,.86); }
.course-overview-hero .eyebrow { color: #ffc18d; }
.course-overview-meta { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3,minmax(88px,1fr)); gap: 10px; }
.course-overview-meta span { display: grid; place-items: center; min-height: 92px; padding: 12px; border: 1px solid rgba(255,255,255,.22); border-radius: 18px; background: rgba(255,255,255,.09); backdrop-filter: blur(8px); }
.course-overview-meta strong { font-size: 1.28rem; }
.course-overview-meta small { margin-top: 4px; color: rgba(255,255,255,.72); }
.course-info-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
.course-info-card { position: relative; padding: 24px; border: 1px solid var(--border); border-radius: 20px; background: #fff; box-shadow: 0 12px 30px rgba(25,43,69,.07); }
.course-info-card-wide { grid-column: 1 / -1; }
.course-info-card h3 { margin: 4px 0 16px; color: var(--accent-2); }
.course-info-card p { line-height: 1.75; }
.course-info-icon { display: grid; place-items: center; width: 40px; height: 40px; margin-bottom: 10px; border-radius: 13px; background: #fff2e8; color: #d95e0b; font-weight: 900; }
.clo-list { display: grid; gap: 12px; padding: 0; margin: 0; list-style: none; counter-reset: clo; }
.clo-list li { display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: start; padding: 12px 14px; border-radius: 14px; background: #f7f9fc; }
.clo-list strong { padding: 4px 8px; border-radius: 9px; background: #173e63; color: #fff; font-size: .8rem; }
.clo-list span { line-height: 1.65; }
.assessment-list { display: grid; gap: 9px; }
.assessment-list > div, .assessment-total { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 11px 14px; border-radius: 12px; background: #f7f9fc; }
.assessment-list strong { color: #d95e0b; }
.assessment-total { margin-top: 10px; background: #173e63; color: #fff; }
.course-pass-note { margin-top: 14px; padding: 13px 15px; border-left: 4px solid #f47a20; border-radius: 10px; background: #fff8f2; }
.preserve-lines { white-space: pre-line; }
.course-info-form { margin-top: 22px; }
.course-info-form-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; margin: 20px 0; }
.course-info-form-grid label { margin: 0; }
.course-info-form-grid .wide { grid-column: 1 / -1; }
.course-certificate-check { align-self: end; min-height: 48px; }
.assessment-total-ok { color: #087a4f !important; font-weight: 700; }
.assessment-total-warning { color: #b24b13 !important; font-weight: 700; }
.clo-alignment-panel { margin-top: 22px; }
.clo-alignment-list { display: grid; gap: 12px; margin: 18px 0; }
.clo-alignment-row { display: grid; grid-template-columns: minmax(220px,1fr) minmax(300px,1.4fr); gap: 18px; align-items: center; padding: 16px; border: 1px solid var(--border); border-radius: 16px; background: #fbfcfe; }
.clo-alignment-row strong, .clo-alignment-row small { display: block; }
.clo-alignment-row small { margin-top: 5px; color: var(--muted); }
.clo-check-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.clo-check { display: inline-flex; align-items: center; gap: 6px; margin: 0 !important; padding: 8px 11px; border: 1px solid #d9e1eb; border-radius: 999px; background: #fff; cursor: pointer; }
.clo-check:has(input:checked) { border-color: #f47a20; background: #fff2e8; color: #b94e08; }
.clo-check input { accent-color: #f47a20; }
.lesson-clo-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 13px; }
.lesson-clo-tags span { padding: 5px 9px; border-radius: 999px; background: #edf4fb; color: #174a74; font-size: .76rem; font-weight: 800; }
@keyframes scheduleGlow {
  0%, 100% { box-shadow: 0 14px 32px rgba(217,94,11,.10), 0 0 0 0 rgba(244,122,32,.12); }
  50% { box-shadow: 0 18px 36px rgba(217,94,11,.16), 0 0 0 10px rgba(244,122,32,.04); }
}
@keyframes ctaPulse {
  0%, 100% { transform: translateY(0) scale(1); box-shadow: 0 12px 24px rgba(244,122,32,.22); }
  50% { transform: translateY(-1px) scale(1.02); box-shadow: 0 16px 30px rgba(244,122,32,.34); }
}
@keyframes ctaShine {
  0% { transform: translateX(-160%) skewX(-22deg); opacity: 0; }
  15% { opacity: .35; }
  35% { opacity: .28; }
  55% { transform: translateX(240%) skewX(-22deg); opacity: 0; }
  100% { transform: translateX(240%) skewX(-22deg); opacity: 0; }
}
.schedule-highlight-card {
  position: relative;
  overflow: hidden;
  margin-top: 18px;
  padding: 18px;
  border: 1px solid #ffd6b8;
  border-radius: 18px;
  background:
    radial-gradient(circle at top right, rgba(244,122,32,.14), transparent 28%),
    linear-gradient(135deg, #fff7f1 0%, #fff 100%);
  box-shadow: 0 14px 32px rgba(217,94,11,.10);
  animation: scheduleGlow 2.6s ease-in-out infinite;
}
.schedule-highlight-card::after {
  content: "ใหม่";
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 9px;
  border-radius: 999px;
  background: #d95e0b;
  color: #fff;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .02em;
}
.schedule-highlight-copy { display: grid; gap: 7px; }
.schedule-highlight-badge {
  display: inline-flex; align-items: center; justify-content: center; width: fit-content;
  padding: 6px 10px; border-radius: 999px; background: #fff; color: #d95e0b;
  border: 1px solid #ffd8bf; font-size: .78rem; font-weight: 800;
}
.schedule-highlight-copy strong { color: #173e63; font-size: 1.03rem; }
.schedule-highlight-copy small { color: #5e6c83; line-height: 1.7; }
.resource-link-button {
  display: inline-flex; align-items: center; gap: 10px; margin-top: 14px;
  color: #d95e0b; font-weight: 800; text-decoration: none;
}
.resource-link-button:hover { text-decoration: underline; }
.resource-link-button-cta {
  position: relative;
  overflow: hidden;
  justify-content: center; padding: 13px 16px; min-height: 48px; border-radius: 14px;
  background: linear-gradient(135deg, #f47a20, #ff9b49); color: #fff;
  box-shadow: 0 12px 24px rgba(244,122,32,.22);
  text-decoration: none !important; transition: transform .16s ease, box-shadow .16s ease, filter .16s ease;
  animation: ctaPulse 1.8s ease-in-out infinite;
}
.resource-link-button-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  width: 36%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.68), transparent);
  animation: ctaShine 3.4s ease-in-out infinite;
  pointer-events: none;
}
.resource-link-button-cta span { color: inherit; }
.resource-link-button-cta em {
  width: 26px; height: 26px; display: inline-grid; place-items: center;
  border-radius: 999px; background: rgba(255,255,255,.18); color: inherit; font-style: normal;
}
.resource-link-button-cta:hover {
  transform: translateY(-2px);
  filter: saturate(1.05);
  box-shadow: 0 16px 28px rgba(244,122,32,.28);
}


@media (max-width: 640px) {
  .schedule-highlight-card { padding: 16px; }
  .resource-link-button-cta { width: 100%; }
}

@media (max-width: 900px) {
  .course-overview-hero { grid-template-columns: 1fr; }
  .course-info-grid { grid-template-columns: 1fr; }
  .course-info-card-wide { grid-column: auto; }
  .clo-alignment-row { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .course-overview-hero { padding: 22px; border-radius: 18px; }
  .course-overview-meta { grid-template-columns: 1fr; }
  .course-overview-meta span { min-height: 68px; grid-template-columns: auto 1fr; justify-content: start; column-gap: 8px; }
  .course-overview-meta small { margin: 0; }
  .course-info-form-grid { grid-template-columns: 1fr; }
  .course-info-form-grid .wide { grid-column: auto; }
  .course-info-form .panel-heading { align-items: flex-start; flex-direction: column; }
}

/* v2.9: keep instructor fallback hidden while the real photo is available */
.instructor-photo.placeholder[hidden] {
  display: none !important;
}

@media (prefers-reduced-motion: reduce) {
  .schedule-highlight-card,
  .resource-link-button-cta,
  .resource-link-button-cta::before { animation: none !important; }
}


/* v3.2: teacher manual scores alongside automatic quiz scores */
.manual-score-dialog { width: min(760px, calc(100vw - 28px)); }
.manual-quiz-summary {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: center;
  margin: 18px 0;
  padding: 15px 16px;
  border: 1px solid #cfe0ef;
  border-radius: 15px;
  background: linear-gradient(135deg, #edf6fd, #f8fbfe);
}
.manual-quiz-summary strong { color: #173e63; font-size: 1.3rem; white-space: nowrap; }
.manual-quiz-summary span { color: #5e6c83; line-height: 1.6; }
.manual-score-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.manual-score-box { padding: 18px; border: 1px solid var(--border); border-radius: 17px; background: #f9fbfd; }
.manual-score-box h3 { margin: 0 0 12px; color: #173e63; }
.manual-score-box label { margin-top: 12px; }
.manual-score-note { margin-top: 16px; padding: 12px 14px; border-left: 4px solid #f47a20; border-radius: 10px; color: #6a4a32; background: #fff7f0; line-height: 1.65; }
#scoreTableBody .mini-button.edit { white-space: nowrap; }
@media (max-width: 700px) {
  .manual-score-grid { grid-template-columns: 1fr; }
  .manual-quiz-summary { grid-template-columns: 1fr; }
}


/* =========================================================
   v3.3 — Pre-test, in-class activity and post-test per lesson
   ========================================================= */
.lesson-component-builder { display:grid; gap:12px; margin:20px 0; padding:16px; border:1px solid #dce4ee; border-radius:18px; background:linear-gradient(145deg,#fbfcfe,#f4f7fb); }
.lesson-component-builder-heading { display:flex; justify-content:space-between; gap:12px; align-items:flex-start; }
.lesson-component-builder-heading h4,.lesson-component-builder-heading p { margin:0; }
.lesson-component-builder-heading p { margin-top:5px; color:var(--muted); font-size:.84rem; line-height:1.55; }
.lesson-component-editor { overflow:hidden; border:1px solid #dfe6ef; border-radius:15px; background:#fff; }
.lesson-component-editor.pretest { --component-color:#3156c9; --component-soft:#eef2ff; }
.lesson-component-editor.activity { --component-color:#087c75; --component-soft:#e7f8f5; }
.lesson-component-editor.posttest { --component-color:#d45b0c; --component-soft:#fff1e7; }
.lesson-component-toggle { display:grid; grid-template-columns:auto auto minmax(0,1fr); gap:10px; align-items:center; margin:0!important; padding:14px; cursor:pointer; }
.lesson-component-toggle input { width:18px; height:18px; accent-color:var(--component-color); }
.lesson-component-editor-icon { width:38px; height:38px; display:grid; place-items:center; border-radius:12px; background:var(--component-soft); }
.lesson-component-toggle strong,.lesson-component-toggle small { display:block; }
.lesson-component-toggle strong { color:#173e63; }
.lesson-component-toggle small { margin-top:3px; color:var(--muted); font-weight:400; }
.lesson-component-fields { display:grid; gap:8px; padding:0 14px 16px 60px; border-top:1px dashed #e2e7ed; }
.lesson-component-fields label { margin-top:10px; }
.lesson-form-actions,.management-actions { display:flex; flex-wrap:wrap; gap:10px; }
.lesson-form-actions>button { flex:1 1 180px; }
.management-actions { justify-content:flex-end; }
.lesson-component-actions { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:10px; margin:16px 0; }
.lesson-component-actions.compact { display:flex; flex-wrap:wrap; gap:7px; margin:14px 0 2px; }
.lesson-component-button { display:grid; grid-template-columns:auto 1fr; grid-template-areas:"icon title" "icon score"; column-gap:8px; align-items:center; min-height:62px; padding:10px 12px; border:1px solid #dce4ee; border-radius:14px; background:#fff; color:#173e63; text-align:left; cursor:pointer; transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease; }
.lesson-component-button>span { grid-area:icon; font-size:1.2rem; }
.lesson-component-button>strong { grid-area:title; font-size:.86rem; }
.lesson-component-button>small { grid-area:score; color:var(--muted); }
.lesson-component-button.pretest { border-color:#cfd8ff; background:#f5f7ff; }
.lesson-component-button.activity { border-color:#c9ebe7; background:#f1fbf9; }
.lesson-component-button.posttest { border-color:#ffd4b7; background:#fff7f1; }
.lesson-component-button:hover { transform:translateY(-2px); box-shadow:0 10px 22px rgba(30,50,75,.10); border-color:#f47a20; }
.lesson-component-actions.compact .lesson-component-button { display:inline-flex; min-height:34px; padding:7px 10px; border-radius:999px; gap:6px; }
.lesson-component-actions.compact .lesson-component-button>span,.lesson-component-actions.compact .lesson-component-button>strong,.lesson-component-actions.compact .lesson-component-button>small { display:inline; font-size:.75rem; }
.dialog-lesson-components { margin:0 0 20px; padding:16px; border:1px solid #dfe6ef; border-radius:18px; background:#f8fafc; }
.dialog-lesson-components::before { content:"กิจกรรมและการประเมินประจำบท"; display:block; margin-bottom:10px; color:#173e63; font-weight:800; }
@media (max-width:720px) { .lesson-component-builder-heading{flex-direction:column}.lesson-component-fields{padding-left:14px}.lesson-component-actions{grid-template-columns:1fr}.management-actions{justify-content:stretch}.management-actions>button{flex:1 1 140px} }

/* =========================================================
   v3.4 — Internal pre-test and post-test builder
   ========================================================= */
.quiz-mode-panel,
.internal-quiz-builder { margin-top: 4px; }
.quiz-setting-grid {
  display: grid;
  grid-template-columns: minmax(140px,.7fr) repeat(2,minmax(180px,1fr));
  gap: 12px;
  align-items: end;
  margin: 8px 0 14px;
  padding: 14px;
  border: 1px solid #dce4ee;
  border-radius: 14px;
  background: #f8fafc;
}
.quiz-setting-grid label { margin: 0; }
.quiz-setting-grid .check-row { min-height: 48px; padding: 10px 12px; border: 1px solid #dfe6ef; border-radius: 12px; background: #fff; }
.quiz-builder-heading {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin: 10px 0;
}
.quiz-builder-heading strong,
.quiz-builder-heading small { display: block; }
.quiz-builder-heading strong { color: #173e63; }
.quiz-builder-heading small { margin-top: 3px; color: var(--muted); line-height: 1.5; }
.quiz-question-list { display: grid; gap: 12px; }
.quiz-question-editor {
  padding: 15px;
  border: 1px solid #dce4ee;
  border-radius: 15px;
  background: linear-gradient(145deg,#fff,#f8fafc);
  box-shadow: 0 8px 20px rgba(31,51,75,.05);
}
.quiz-question-editor > header { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 4px; }
.quiz-question-editor > header strong { color: #173e63; }
.quiz-option-editor-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.quiz-option-editor-grid label { display: grid; grid-template-columns: auto 1fr; gap: 8px; align-items: center; margin: 0; }
.quiz-option-editor-grid label > span { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 9px; background: #edf3fa; color: #173e63; font-weight: 800; }
.quiz-question-setting-grid { display: grid; grid-template-columns: 1fr 160px; gap: 12px; }
.quiz-question-setting-grid label { margin-top: 10px; }

.internal-quiz-dialog { width: min(920px, calc(100vw - 28px)); max-height: 92vh; padding: 0; overflow: auto; }
.internal-quiz-header {
  padding: 30px 32px 24px;
  color: #fff;
  background: linear-gradient(130deg,#163a60,#245f8c 65%,#ef7c33);
}
.internal-quiz-header h2 { margin: 8px 0 8px; font-size: clamp(1.45rem,3vw,2.2rem); }
.internal-quiz-header p { color: rgba(255,255,255,.82); }
.internal-quiz-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.internal-quiz-meta span { display: grid; min-width: 100px; padding: 10px 13px; border: 1px solid rgba(255,255,255,.22); border-radius: 13px; background: rgba(255,255,255,.10); }
.internal-quiz-meta strong { font-size: 1.05rem; }
.internal-quiz-meta small { margin-top: 2px; color: rgba(255,255,255,.72); }
.internal-quiz-form { padding: 26px 30px 30px; }
.internal-quiz-question-list { display: grid; gap: 16px; }
.internal-quiz-question {
  min-width: 0;
  margin: 0;
  padding: 18px;
  border: 1px solid #dce4ee;
  border-radius: 17px;
  background: #fff;
}
.internal-quiz-question legend { display: flex; gap: 10px; align-items: flex-start; padding: 0 6px; color: #173e63; font-weight: 800; line-height: 1.65; }
.internal-quiz-question legend > span { flex: 0 0 auto; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 9px; background: #edf3fa; color: #173e63; }
.internal-quiz-options { display: grid; gap: 9px; margin-top: 12px; }
.internal-quiz-options label { margin: 0; cursor: pointer; }
.internal-quiz-options label > input { position: absolute; opacity: 0; pointer-events: none; }
.internal-quiz-options label > span { display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: center; min-height: 46px; padding: 10px 13px; border: 1px solid #dfe6ef; border-radius: 13px; background: #f9fbfd; transition: .15s ease; }
.internal-quiz-options label > span > strong { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 8px; background: #e9f0f7; color: #173e63; }
.internal-quiz-options label > input:checked + span { border-color: #f47a20; background: #fff4eb; box-shadow: 0 0 0 3px rgba(244,122,32,.09); }
.internal-quiz-options label > input:focus-visible + span { outline: 3px solid rgba(49,86,201,.18); }
.internal-quiz-question.answered-correct { border-color: #9bd9c5; background: #f4fcf9; }
.internal-quiz-question.answered-incorrect { border-color: #f1b3aa; background: #fff8f6; }
.internal-quiz-feedback { margin-top: 12px; padding: 12px 14px; border-radius: 12px; background: #f4f7fb; line-height: 1.65; }
.internal-quiz-feedback p { margin: 5px 0 0; }
.quiz-feedback-status { width: fit-content; padding: 4px 9px; border-radius: 999px; font-size: .78rem; font-weight: 800; }
.quiz-feedback-status.correct { background: #dff6ed; color: #087a4f; }
.quiz-feedback-status.incorrect { background: #ffe7e2; color: #b24436; }
.internal-quiz-result { display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: center; margin-top: 18px; padding: 16px 18px; border: 1px solid #cfe0ef; border-radius: 16px; background: linear-gradient(135deg,#edf6fd,#fff8f2); }
.internal-quiz-result-score { display: grid; place-items: center; min-width: 100px; min-height: 82px; padding: 10px; border-radius: 15px; color: #fff; background: linear-gradient(135deg,#173e63,#f47a20); }
.internal-quiz-result-score strong { font-size: 1.35rem; }
.internal-quiz-result-score span { font-size: .82rem; opacity: .88; }
.internal-quiz-result h3,
.internal-quiz-result p { margin: 0; }
.internal-quiz-result p { margin-top: 5px; color: var(--muted); }

@media (max-width: 720px) {
  .quiz-setting-grid,
  .quiz-option-editor-grid,
  .quiz-question-setting-grid { grid-template-columns: 1fr; }
  .quiz-builder-heading { align-items: stretch; flex-direction: column; }
  .internal-quiz-header { padding: 24px 20px 20px; }
  .internal-quiz-form { padding: 20px 16px 24px; }
  .internal-quiz-result { grid-template-columns: 1fr; }
}


/* =========================================================
   v3.5 — Fix clipped internal quiz builder
   ========================================================= */
/* ให้แบบฟอร์มบทเรียนใช้ความกว้างเต็มหน้า เพื่อมีพื้นที่ออกข้อสอบเพียงพอ */
.manage-grid {
  grid-template-columns: minmax(280px, 460px) minmax(0, 1fr);
  align-items: start;
}
.manage-grid > * { min-width: 0; }
#courseForm { grid-column: 1; }
#lessonForm {
  grid-column: 1 / -1;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  overflow: visible;
}

/* ป้องกันส่วนประกอบภายในขยายเกินขอบจอ */
#lessonForm input,
#lessonForm textarea,
#lessonForm select,
.lesson-component-builder,
.lesson-component-editor,
.lesson-component-fields,
.internal-quiz-builder,
.quiz-setting-grid,
.quiz-question-list,
.quiz-question-editor,
.quiz-option-editor-grid,
.quiz-question-setting-grid,
.quiz-option-editor-grid label,
.quiz-question-setting-grid label {
  min-width: 0;
  max-width: 100%;
}

.lesson-component-fields {
  width: 100%;
  overflow: visible;
}

.quiz-question-editor {
  width: 100%;
  overflow: hidden;
}

.quiz-question-editor textarea,
.quiz-question-editor input,
.quiz-question-editor select {
  display: block;
  min-width: 0;
  max-width: 100%;
}

/* หน้าจอขนาดกลาง: ลดจำนวนคอลัมน์ เพื่อไม่ให้ช่องถูกตัด */
@media (max-width: 1250px) {
  .quiz-setting-grid {
    grid-template-columns: 1fr 1fr;
  }
  .quiz-setting-grid > label:first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 900px) {
  .manage-grid { grid-template-columns: 1fr; }
  #courseForm,
  #lessonForm { grid-column: 1; }
  .quiz-setting-grid,
  .quiz-option-editor-grid,
  .quiz-question-setting-grid {
    grid-template-columns: 1fr;
  }
  .lesson-component-fields { padding-left: 14px; padding-right: 14px; }
}

@media (max-width: 640px) {
  .quiz-question-editor { padding: 12px; }
  .quiz-question-editor > header {
    align-items: stretch;
    flex-direction: column;
  }
  .quiz-question-editor > header .danger-button { width: 100%; }
}


/* =========================================================
   v3.7 — สรุปนักศึกษาต่อรายวิชา / เรียงลำดับ / ส่งออกแยกวิชา
   ========================================================= */
.student-course-summary-panel {
  margin-bottom: 20px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background:
    radial-gradient(circle at 95% 0%, rgba(244,122,32,.12), transparent 26%),
    linear-gradient(145deg, #ffffff, #f7f9fc);
  box-shadow: 0 10px 28px rgba(38,55,105,.06);
}
.student-course-summary-heading h2 { margin: 4px 0 5px; font-size: 1.22rem; }
.student-course-summary-heading p { margin: 0 0 16px; color: var(--muted); }
.student-course-summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
}
.student-course-summary-card {
  position: relative;
  display: grid;
  gap: 5px;
  min-height: 126px;
  padding: 16px;
  text-align: left;
  border: 1px solid #dfe5ee;
  border-radius: 17px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
  transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease;
}
.student-course-summary-card:hover {
  transform: translateY(-2px);
  border-color: #f5b27d;
  box-shadow: 0 12px 24px rgba(33,52,78,.09);
}
.student-course-summary-card.active {
  border-color: #f47a20;
  background: linear-gradient(145deg, #fff7f1, #fff);
  box-shadow: 0 12px 26px rgba(244,122,32,.15);
}
.student-course-summary-card.active::after {
  content: "กำลังแสดง";
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 8px;
  border-radius: 999px;
  color: #fff;
  background: #d95e0b;
  font-size: .68rem;
  font-weight: 800;
}
.student-course-summary-code { color: #d95e0b; font-size: .8rem; font-weight: 800; }
.student-course-summary-card strong { max-width: calc(100% - 65px); line-height: 1.45; }
.student-course-summary-count { margin-top: auto; color: #173e63; font-size: 1.35rem; font-weight: 800; }
.student-course-summary-card small { color: var(--muted); }
.student-course-chips { display: flex; flex-wrap: wrap; gap: 6px; min-width: 125px; }
.student-course-chips span {
  display: inline-flex;
  padding: 5px 8px;
  border-radius: 999px;
  background: #edf4fb;
  color: #174a74;
  font-size: .75rem;
  font-weight: 800;
}
.student-course-chips span.empty { background: #f3f4f6; color: var(--muted); font-weight: 600; }
.student-toolbar {
  grid-template-columns: minmax(260px, 1.4fr) minmax(140px, .65fr) minmax(210px, 1fr) minmax(210px, 1fr) minmax(125px, .58fr) auto;
}
.student-table { min-width: 1260px; }
@media (max-width: 1280px) {
  .student-toolbar { grid-template-columns: 1fr 1fr 1fr; }
  .student-search-wrap { grid-column: 1 / -1; }
  .student-toolbar .status-pill { justify-self: start; }
}
@media (max-width: 760px) {
  .student-course-summary-panel { padding: 16px; }
  .student-course-summary-grid { grid-template-columns: 1fr; }
  .student-toolbar { grid-template-columns: 1fr; }
  .student-search-wrap { grid-column: auto; }
}

/* v3.8: reliable CSV export button */
.export-students-button {
  position: relative;
  cursor: pointer;
  min-width: 210px;
  border-color: #f2b17f;
  box-shadow: 0 8px 20px rgba(244,122,32,.10);
}
.export-students-button:hover { transform: translateY(-1px); }
.export-students-button.is-exporting,
.export-students-button:disabled {
  cursor: wait;
  opacity: .72;
  transform: none;
}

@media (max-width: 640px) {
  .discussion-inline-heading,
  .discussion-card-footer { align-items: flex-start; flex-direction: column; }
}


/* =========================================================
   v4.0 — Login branding and copyright
   ========================================================= */
.login-copyright {
  position: absolute;
  left: clamp(34px, 3.4vw, 62px);
  bottom: clamp(28px, 5vh, 52px);
  z-index: 2;
  margin: 0;
  padding: 10px 16px;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 999px;
  color: rgba(255,255,255,.86);
  background: rgba(8,35,66,.24);
  backdrop-filter: blur(8px);
  font-size: .88rem;
  font-weight: 500;
  letter-spacing: .01em;
  box-shadow: 0 10px 28px rgba(5,22,45,.14);
}
@media (max-width: 980px), (max-height: 760px) {
  .login-copyright {
    position: relative;
    left: auto;
    bottom: auto;
    width: fit-content;
    margin-top: 34px;
  }
}
@media (max-width: 640px) {
  .login-copyright {
    padding: 8px 12px;
    font-size: .78rem;
  }
}

/* v4.1: student and general-interest registration */
.registration-conditional-fields { display: block; }
.registration-conditional-fields.hidden { display: none !important; }
.optional-text { color: var(--muted); font-weight: 400; font-size: .82rem; }
.discussion-inline-reply.general-reply,
.discussion-reply.general-reply { border-left-color: #2a75b8; background: #f2f8ff; }

/* =========================================================
   v5.0 — Academic Operations Suite
   Attendance, Reports, Certificates, Announcements, Reminders
   ========================================================= */
.academic-suite-view { animation: featureFade .22s ease; }
.academic-heading { align-items: flex-end; gap: 20px; }
.academic-heading-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.nav-with-badge { position: relative; }
.nav-count-badge {
  margin-left: auto; min-width: 22px; height: 22px; padding: 0 6px; display: inline-grid; place-items: center;
  border-radius: 999px; background: #f47a20; color: #fff; font-size: .72rem; font-weight: 900;
  box-shadow: 0 6px 14px rgba(244,122,32,.28);
}
.academic-filter-panel {
  margin-bottom: 18px; padding: 16px 18px; border: 1px solid var(--border); border-radius: 18px;
  background: linear-gradient(135deg,#fff,#f7f9fc); box-shadow: 0 10px 24px rgba(25,43,69,.05);
}
.academic-filter-panel label { display: grid; gap: 7px; max-width: 460px; margin: 0; font-weight: 800; }
.academic-form { margin-bottom: 20px; }
.academic-form-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; margin: 18px 0; }
.academic-form-grid label { margin: 0; }
.academic-form-grid .wide { grid-column: 1/-1; }
.academic-check { align-self: end; min-height: 48px; }
.academic-card-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.academic-card {
  position: relative; display: flex; flex-direction: column; gap: 11px; min-width: 0; padding: 21px;
  border: 1px solid var(--border); border-radius: 20px; background: #fff;
  box-shadow: 0 14px 32px rgba(25,43,69,.07); overflow: hidden;
}
.academic-card::before { content:""; position:absolute; inset:0 0 auto; height:4px; background: linear-gradient(90deg,#f47a20,#173e63); }
.academic-card h3,.academic-card p { margin: 0; }
.academic-card p { color: #506077; line-height: 1.72; }
.academic-card small { color: var(--muted); }
.academic-card-top,.academic-card-meta,.academic-card-actions { display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap; }
.academic-card-meta { padding-top: 10px; border-top: 1px solid #edf1f5; color: #657287; font-size: .82rem; }
.academic-card-actions { margin-top: auto; }
.priority-badge,.pin-badge,.session-status,.notification-type {
  display:inline-flex; align-items:center; gap:5px; padding:6px 10px; border-radius:999px; font-size:.76rem; font-weight:800;
}
.priority-badge.normal { background:#eaf3ff; color:#1b5d91; }
.priority-badge.important { background:#fff1d1; color:#9d6200; }
.priority-badge.urgent { background:#ffe2e8; color:#b22646; }
.pin-badge { background:#fff2e8; color:#c2540c; }
.announcement-card-v5.urgent { border-color:#ffc2cf; }
.announcement-card-v5.important { border-color:#ffe1a0; }
.preserve-lines { white-space: pre-line; }

.student-checkin-panel { margin-bottom: 20px; }
.checkin-inline-form { display:grid; grid-template-columns:minmax(260px,1.5fr) minmax(160px,.8fr) auto; gap:12px; align-items:end; }
.checkin-inline-form input,.checkin-inline-form select { margin:0; }
.session-status.open { color:#087a4f; background:#daf5e9; }
.session-status.upcoming { color:#775500; background:#fff0c7; }
.session-status.closed { color:#68758a; background:#eef1f5; }
.attendance-card.open { border-color:#98dec2; box-shadow:0 16px 38px rgba(8,122,79,.10); }
.attendance-counts { display:grid; grid-template-columns:repeat(4,1fr); gap:7px; }
.attendance-counts span { padding:8px 5px; border-radius:10px; text-align:center; background:#f4f7fa; color:#45546b; font-size:.78rem; font-weight:800; }
.secret-code-box { padding:12px 14px; border:1px dashed #f0a566; border-radius:13px; background:#fff8f2; color:#9b4a11; }
.secret-code-box strong { font-size:1.18rem; letter-spacing:.14em; }
.my-attendance-status { padding:12px 14px; border-radius:13px; background:#f4f7fa; color:#657287; }
.my-attendance-status.checked { background:#e5f7ef; color:#087a4f; }
.academic-dialog { max-width: min(1050px,94vw); }

.academic-summary-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:14px; margin-bottom:18px; }
.academic-summary-grid article { min-height:118px; padding:19px; border:1px solid var(--border); border-radius:18px; background:#fff; box-shadow:0 12px 28px rgba(25,43,69,.06); }
.academic-summary-grid small,.academic-summary-grid strong,.academic-summary-grid span { display:block; }
.academic-summary-grid small { color:#718096; }
.academic-summary-grid strong { margin:7px 0 2px; color:#102f51; font-size:1.65rem; }
.academic-summary-grid span { color:#7b8798; font-size:.82rem; }
.report-table-panel { padding:0; overflow:hidden; }
.table-scroll { width:100%; overflow:auto; }
.academic-table { width:100%; border-collapse:collapse; min-width:900px; }
.academic-table th,.academic-table td { padding:13px 14px; border-bottom:1px solid #e7ecf1; text-align:left; vertical-align:middle; }
.academic-table th { background:#f3f6f9; color:#445269; font-size:.82rem; white-space:nowrap; }
.academic-table td small { display:block; margin-top:4px; color:#7b8798; }
.grade-badge { display:inline-grid; place-items:center; min-width:42px; height:34px; padding:0 9px; border-radius:10px; background:#173e63; color:#fff; font-weight:900; }
.empty-cell { padding:30px !important; text-align:center !important; color:#7b8798; }

.certificate-card { text-align:center; align-items:center; background:radial-gradient(circle at top,#fff7eb,#fff 58%); }
.certificate-card.issued { border-color:#e2b66e; }
.certificate-icon { font-size:3rem; filter:drop-shadow(0 7px 8px rgba(194,126,20,.18)); }
.certificate-number { width:100%; padding:9px; border:1px dashed #dfb570; border-radius:11px; background:#fffaf0; color:#97600c; font-size:.8rem; font-weight:800; }

.notification-list { display:grid; gap:12px; }
.notification-item { display:grid; grid-template-columns:auto minmax(0,1fr) auto; gap:14px; align-items:center; padding:16px 18px; border:1px solid var(--border); border-left:5px solid #83a7c7; border-radius:16px; background:#fff; box-shadow:0 9px 22px rgba(25,43,69,.05); }
.notification-item.urgency-3 { border-left-color:#df3b5d; background:linear-gradient(90deg,#fff6f8,#fff); }
.notification-item.urgency-2 { border-left-color:#f2a12b; background:linear-gradient(90deg,#fffaf0,#fff); }
.notification-icon { width:44px; height:44px; display:grid; place-items:center; border-radius:13px; background:#f2f5f8; font-size:1.35rem; }
.notification-item strong,.notification-item p,.notification-item small { display:block; margin:0; }
.notification-item p { margin:4px 0; color:#5f6d82; line-height:1.55; }
.notification-item small { color:#8994a5; }
.notification-type { background:#edf3f8; color:#4d6378; }
.notification-note { margin-top:16px; padding:12px 14px; border-radius:12px; background:#f6f8fa; }

@media (max-width:1100px) {
  .academic-card-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .academic-summary-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (max-width:760px) {
  .academic-heading { align-items:flex-start; flex-direction:column; }
  .academic-form-grid,.academic-card-grid,.academic-summary-grid { grid-template-columns:1fr; }
  .academic-form-grid .wide { grid-column:auto; }
  .checkin-inline-form { grid-template-columns:1fr; }
  .attendance-counts { grid-template-columns:repeat(2,1fr); }
  .notification-item { grid-template-columns:auto 1fr; }
  .notification-type { grid-column:2; justify-self:start; }
}


/* =========================================================
   v5.1 — Multi-instructor directory and course filtering
   ========================================================= */
.instructor-directory-toolbar {
  display: grid;
  grid-template-columns: minmax(260px, 520px) auto;
  gap: 18px;
  align-items: end;
  margin-bottom: 18px;
  padding: 18px 20px;
}
.instructor-directory-toolbar label { margin: 0; }
.instructor-directory-count {
  display: grid;
  justify-items: end;
  align-content: center;
  min-height: 48px;
}
.instructor-directory-count small { color: var(--muted); }
.instructor-directory-count strong { color: var(--primary-dark); font-size: 1.45rem; }
.instructor-directory-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(320px, 1fr));
  gap: 20px;
}
.instructor-directory-card {
  position: relative;
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  min-width: 0;
  min-height: 178px;
  padding: 22px;
  border: 1px solid #dbe4ee;
  border-radius: 24px;
  background: linear-gradient(135deg, #ffffff 0%, #fff9f4 100%);
  color: inherit;
  text-align: left;
  cursor: pointer;
  box-shadow: 0 14px 32px rgba(25,43,69,.08);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.instructor-directory-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  border-radius: 24px 24px 0 0;
  background: linear-gradient(90deg, #f47a20, #173e63);
  opacity: .88;
}
.instructor-directory-card:hover {
  transform: translateY(-4px) scale(1.01);
  border-color: #f6ad78;
  box-shadow: 0 20px 40px rgba(25,43,69,.14);
}
.instructor-directory-card.active {
  border-color: #f47a20;
  background: linear-gradient(135deg, #fffefc 0%, #fff4eb 100%);
  box-shadow: 0 0 0 4px rgba(244,122,32,.14), 0 22px 42px rgba(25,43,69,.16);
}
.instructor-directory-photo {
  width: 112px;
  height: 128px;
  border-radius: 22px;
  object-fit: cover;
  background: #f5f7fb;
  box-shadow: 0 10px 22px rgba(23, 62, 99, .12);
}
.instructor-directory-photo.placeholder { display: grid; place-items: center; font-size: 2.8rem; }
.instructor-directory-copy { display: grid; gap: 8px; min-width: 0; align-content: center; }
.instructor-directory-copy > strong { color: var(--primary-dark); font-size: 1.45rem; line-height: 1.25; overflow-wrap: anywhere; }
.instructor-directory-copy > small { color: #5e6b80; font-size: 1rem; overflow-wrap: anywhere; }
.instructor-role-pill, .instructor-role-badge {
  display: inline-flex;
  width: fit-content;
  padding: 7px 12px;
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 800;
  font-style: normal;
}
.instructor-role-pill.lead, .instructor-role-badge.lead { background: #fff0e5; color: #c65309; }
.instructor-role-pill.co, .instructor-role-badge.co { background: #eaf3ff; color: #225c95; }
.instructor-role-pill.guest, .instructor-role-badge.guest { background: #f2ecff; color: #6541a7; }
.instructor-course-chip-list { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 4px; }
.instructor-course-chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: #edf4fb;
  color: #174a74;
  font-size: .8rem;
  font-weight: 800;
}
.instructor-course-chip.muted { color: var(--muted); background: #f3f4f7; }
.instructor-course-chip.more { background: #173e63; color: #fff; }
.instructor-view-label {
  grid-column: 1 / -1;
  justify-self: end;
  padding: 8px 14px;
  border-radius: 999px;
  background: #fff1e7;
  color: #d95e0b;
  font-size: .86rem;
  font-weight: 800;
  text-align: right;
}
.instructor-selected-detail { margin-top: 18px; scroll-margin-top: 90px; }
.instructor-detail-card { border: 1px solid #dfe5ee; }
.instructor-detail-card .instructor-photo-wrap { position: relative; }
.instructor-role-badge { position: absolute; top: 18px; right: 18px; }
.instructor-detail-courses { justify-content: flex-start; margin: 14px 0 4px; }
.instructor-bio { white-space: pre-wrap; line-height: 1.75; }
.instructor-course-selector {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #f9fbfe;
}
.instructor-course-selector-heading { display: grid; gap: 4px; margin-bottom: 12px; }
.instructor-course-selector-heading strong { color: var(--primary-dark); }
.instructor-course-selector-heading small { color: var(--muted); line-height: 1.55; }
.instructor-course-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.instructor-course-check {
  display: grid !important;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  margin: 0 !important;
  padding: 12px;
  border: 1px solid #dce4ee;
  border-radius: 13px;
  background: #fff;
  cursor: pointer;
}
.instructor-course-check:has(input:checked) { border-color: #f47a20; background: #fff7f1; }
.instructor-course-check input { margin-top: 3px; accent-color: #f47a20; }
.instructor-course-check span { display: grid; gap: 3px; min-width: 0; }
.instructor-course-check strong { color: var(--primary-dark); }
.instructor-course-check small { color: var(--muted); line-height: 1.4; }

@media (max-width: 1180px) {
  .instructor-directory-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .instructor-directory-toolbar { grid-template-columns: 1fr; align-items: stretch; }
  .instructor-directory-count { justify-items: start; }
  .instructor-directory-grid, .instructor-course-options { grid-template-columns: 1fr; }
  .instructor-directory-card { grid-template-columns: 82px minmax(0,1fr); min-height: auto; padding: 18px; }
  .instructor-directory-photo { width: 82px; height: 96px; border-radius: 18px; }
  .instructor-directory-copy > strong { font-size: 1.18rem; }
  .instructor-directory-copy > small { font-size: .92rem; }
}


/* v5.3 — instructor photo duplicate/fallback fix */
.instructor-directory-photo.placeholder[hidden],
.instructor-photo.placeholder[hidden],
.instructor-photo-preview img[hidden] {
  display: none !important;
}
.instructor-directory-photo.placeholder,
.instructor-photo.placeholder {
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #eef4fb, #fff4eb);
  color: #173e63;
  font-weight: 900;
  text-transform: uppercase;
}
.instructor-photo-field { display: grid !important; gap: 8px; }
.instructor-photo-preview {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 96px;
  padding: 12px;
  border: 1px dashed #cfd9e6;
  border-radius: 14px;
  background: #f8fafc;
}
.instructor-photo-preview img {
  width: 72px;
  height: 84px;
  object-fit: cover;
  border-radius: 12px;
  border: 3px solid #fff;
  box-shadow: 0 8px 18px rgba(23,62,99,.13);
}
.instructor-photo-preview-placeholder,
.instructor-photo-preview-status { color: var(--muted); font-size: .84rem; }
.instructor-photo-preview-status.success { color: #13845b; font-weight: 800; }
.instructor-photo-preview-status.error { color: #c83c3c; font-weight: 800; }

/* =========================================================
   v5.5 — Automatic certificate issuance
   ========================================================= */
.certificate-auto-info {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  margin-bottom: 18px;
  padding: 17px 19px;
  border: 1px solid #f1c991;
  border-radius: 18px;
  background: linear-gradient(135deg, #fffaf1, #fff);
  box-shadow: 0 12px 28px rgba(155, 99, 15, .07);
}
.certificate-auto-info > span {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 15px;
  background: #173e63;
  color: #fff;
  font-size: 1.35rem;
}
.certificate-auto-info strong { color: #173e63; }
.certificate-auto-info p { margin: 4px 0 0; color: #68758a; line-height: 1.6; }
.certificate-auto-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  margin: 2px auto;
  padding: 7px 11px;
  border-radius: 999px;
  background: #e6f7ef;
  color: #19734b;
  font-size: .78rem;
  font-weight: 900;
}
.certificate-card.issued {
  background:
    radial-gradient(circle at top, rgba(244, 190, 84, .18), transparent 42%),
    linear-gradient(180deg, #fffdf8, #fff);
  box-shadow: 0 16px 34px rgba(151, 98, 14, .11);
}
.certificate-card .primary-button { width: 100%; justify-content: center; }
@media (max-width: 760px) {
  .certificate-auto-info { grid-template-columns: 1fr; }
  .certificate-auto-info > span { width: 42px; height: 42px; }
}

/* v6.2 — QR certificate verification */
.certificate-auto-badge.revoked { background:#fff0f1; color:#b42335; border-color:#ffc9cf; }
.certificate-card .outline-button { width:100%; justify-content:center; text-decoration:none; }

/* Learning analytics dashboard v6.6 */
.analytics-heading { align-items: center; }
.analytics-filter-panel {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 22px;
}
.analytics-filter-panel label { width: min(520px, 100%); }
.analytics-legend { display: flex; flex-wrap: wrap; gap: 14px; color: var(--muted); font-size: .86rem; }
.analytics-legend span { display: inline-flex; align-items: center; gap: 6px; }
.risk-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.risk-high { background: #d64545; }
.risk-medium { background: #e7a126; }
.risk-low { background: #35a878; }
.analytics-summary-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(150px, 1fr));
  gap: 16px;
  margin: 20px 0;
}
.analytics-stat-card {
  position: relative;
  min-height: 146px;
  padding: 20px;
  border: 1px solid #e1e7ee;
  border-radius: 20px;
  background: linear-gradient(145deg, #fff, #f7f9fb);
  box-shadow: 0 12px 28px rgba(22,48,79,.07);
  overflow: hidden;
}
.analytics-stat-card::after {
  content: "";
  position: absolute;
  right: -20px;
  top: -24px;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: rgba(41,91,143,.07);
}
.analytics-stat-card small, .analytics-stat-card strong, .analytics-stat-card span { display: block; }
.analytics-stat-card small { color: var(--muted); font-weight: 600; }
.analytics-stat-card strong { margin: 8px 0 4px; color: #0d3157; font-size: 2rem; line-height: 1; }
.analytics-stat-card > span:last-child { color: #647184; font-size: .85rem; }
.analytics-stat-icon { font-size: 1.25rem; }
.analytics-stat-card.success { border-color: #ccebdd; background: linear-gradient(145deg, #fff, #eefaf4); }
.analytics-stat-card.info { border-color: #d6e4f5; background: linear-gradient(145deg, #fff, #f0f6fc); }
.analytics-stat-card.warning { border-color: #f3dfae; background: linear-gradient(145deg, #fff, #fff8e9); }
.analytics-stat-card.danger { border-color: #f2d0d4; background: linear-gradient(145deg, #fff, #fff1f3); }
.analytics-two-column { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(360px, .75fr); gap: 20px; }
.analytics-panel { margin-top: 0; }
.analytics-panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.analytics-panel-heading h3 { margin: 3px 0 0; color: #102f51; font-size: 1.25rem; }
.analytics-panel-heading p { margin: 5px 0 0; color: var(--muted); }
.analytics-insight-badge, .analytics-count-badge {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 12px;
  border-radius: 999px;
  background: #eef4fa;
  color: #17456f;
  font-size: .82rem;
  font-weight: 700;
}
.analytics-count-badge.warning { background: #fff2d5; color: #9a5b00; }
.analytics-lesson-chart { display: grid; gap: 12px; }
.analytics-lesson-row {
  display: grid;
  grid-template-columns: minmax(210px, 1.25fr) minmax(170px, .75fr) minmax(170px, .75fr);
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  border: 1px solid #e5eaf0;
  border-radius: 16px;
  background: #fbfcfd;
}
.analytics-lesson-label strong, .analytics-lesson-label small { display: block; }
.analytics-lesson-label strong { color: #102f51; }
.analytics-lesson-label small { margin-top: 4px; color: var(--muted); }
.analytics-metric-block span { display: flex; justify-content: space-between; gap: 8px; color: #556274; font-size: .82rem; }
.analytics-metric-block b { color: #164c7e; }
.analytics-bar { height: 9px; margin-top: 7px; overflow: hidden; border-radius: 999px; background: #e6edf4; }
.analytics-bar i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #f47a20, #ffac4f); }
.analytics-metric-block.completion .analytics-bar i { background: linear-gradient(90deg, #164c7e, #357eb8); }
.analytics-table-scroll { max-height: 440px; }
.analytics-table th { position: sticky; top: 0; z-index: 2; background: #f2f6f9; }
.analytics-number { display: inline-flex; min-width: 38px; justify-content: center; border-radius: 999px; padding: 5px 9px; font-weight: 800; }
.analytics-number.success { background: #e4f6ee; color: #16825a; }
.analytics-number.danger { background: #ffe8eb; color: #bf3644; }
.analytics-risk-panel { margin-top: 20px; }
.risk-row.risk-high { background: rgba(214,69,69,.045); }
.risk-row.risk-medium { background: rgba(231,161,38,.045); }
.analytics-risk-badge { display: inline-flex; white-space: nowrap; border-radius: 999px; padding: 6px 10px; font-weight: 800; font-size: .78rem; }
.analytics-risk-badge.high { background: #ffe3e7; color: #b52838; }
.analytics-risk-badge.medium { background: #fff0cd; color: #975d00; }
.analytics-risk-badge.low { background: #e1f6ec; color: #16734f; }
.analytics-mini-progress { width: 110px; height: 8px; overflow: hidden; border-radius: 999px; background: #e4ebf2; }
.analytics-mini-progress i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #f47a20, #164c7e); }
.risk-table td small { display: block; margin-top: 4px; color: var(--muted); }
.success-empty { color: #16825a; }
.analyticsRefreshButton[disabled], #analyticsRefreshButton[disabled] { opacity: .55; cursor: wait; }
@media (max-width: 1180px) {
  .analytics-summary-grid { grid-template-columns: repeat(3, minmax(160px, 1fr)); }
  .analytics-two-column { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .analytics-filter-panel, .analytics-panel-heading { align-items: stretch; flex-direction: column; }
  .analytics-summary-grid { grid-template-columns: repeat(2, minmax(135px, 1fr)); }
  .analytics-lesson-row { grid-template-columns: 1fr; }
  .analytics-stat-card { min-height: 126px; padding: 16px; }
}
@media (max-width: 480px) {
  .analytics-summary-grid { grid-template-columns: 1fr; }
  .analytics-legend { display: grid; grid-template-columns: 1fr 1fr; }
}

/* =========================================================
   v6.7 — Mobile & Accessibility
   ========================================================= */
:root { --a11y-font-scale: 1; }
html.a11y-large-text { font-size: 112.5%; }
html.a11y-extra-large-text { font-size: 125%; }

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
.skip-link {
  position: fixed;
  z-index: 10000;
  left: 14px;
  top: 10px;
  padding: 11px 16px;
  border-radius: 12px;
  color: #fff;
  background: #0b2e55;
  box-shadow: 0 8px 24px rgba(0,0,0,.24);
  text-decoration: none;
  font-weight: 800;
  transform: translateY(-160%);
  transition: transform .16s ease;
}
.skip-link:focus { transform: translateY(0); }

.a11y-toolbar {
  position: fixed;
  z-index: 120;
  right: 14px;
  bottom: max(14px, env(safe-area-inset-bottom));
  display: flex;
  gap: 6px;
  padding: 7px;
  border: 1px solid rgba(20,55,88,.16);
  border-radius: 16px;
  background: rgba(255,255,255,.94);
  box-shadow: 0 12px 32px rgba(19,43,72,.18);
  backdrop-filter: blur(12px);
}
.a11y-button {
  min-width: 44px;
  min-height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid #ced8e4;
  border-radius: 11px;
  color: #123a62;
  background: #fff;
  font-weight: 900;
  line-height: 1;
}
.a11y-button:hover:not(:disabled),
.a11y-button.is-active { border-color: #f47a20; color: #a84600; background: #fff2e7; }
.a11y-button:disabled { opacity: .42; cursor: not-allowed; }

:where(a, button, input, textarea, select, [tabindex]):focus-visible {
  outline: 3px solid #f47a20 !important;
  outline-offset: 3px !important;
}
button, .primary-button, .outline-button, .text-button, .nav-item { min-height: 44px; }
input, textarea, select { min-height: 48px; }

.sidebar-close-button {
  display: none;
  position: absolute;
  z-index: 2;
  right: 12px;
  top: 10px;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 13px;
  color: #fff;
  background: rgba(255,255,255,.10);
  font-size: 1.7rem;
}
.sidebar-backdrop {
  position: fixed;
  z-index: 45;
  inset: 0;
  visibility: hidden;
  opacity: 0;
  background: rgba(4,18,35,.64);
  backdrop-filter: blur(2px);
  transition: opacity .2s ease, visibility .2s ease;
}
.sidebar-backdrop.is-visible { visibility: visible; opacity: 1; }
body.mobile-menu-open { overflow: hidden; touch-action: none; }

/* Menus remain usable with large text and short screens. */
.sidebar { overflow: hidden; }
.sidebar-brand { flex: 0 0 auto; }
.nav-menu {
  min-height: 0;
  flex: 1 1 auto;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  padding-right: 3px;
}
.sidebar-footer { flex: 0 0 auto; }
.nav-item { line-height: 1.45; }
.nav-item span { min-width: 0; overflow-wrap: anywhere; }

/* High contrast mode */
html.a11y-high-contrast {
  color-scheme: dark;
  --bg: #000;
  --surface: #000;
  --text: #fff;
  --muted: #f4f4f4;
  --border: #fff;
  --primary: #ffdf00;
  --primary-dark: #ffe84d;
  --secondary: #00e5ff;
  --accent: #00ff9d;
  --danger: #ff7474;
  --success: #54ffb0;
  --warning: #ffd84d;
  --shadow: none;
}
html.a11y-high-contrast body,
html.a11y-high-contrast .login-panel,
html.a11y-high-contrast .content-area,
html.a11y-high-contrast .feature-dialog,
html.a11y-high-contrast .lesson-dialog,
html.a11y-high-contrast .student-program-dialog { background: #000 !important; color: #fff !important; }
html.a11y-high-contrast .login-hero,
html.a11y-high-contrast .sidebar,
html.a11y-high-contrast .welcome-card,
html.a11y-high-contrast .internal-quiz-header { background: #000 !important; border-color: #ffdf00 !important; }
html.a11y-high-contrast .topbar,
html.a11y-high-contrast .panel,
html.a11y-high-contrast .stat-card,
html.a11y-high-contrast .login-card,
html.a11y-high-contrast .lesson-card,
html.a11y-high-contrast .resource-card,
html.a11y-high-contrast .assignment-card,
html.a11y-high-contrast .discussion-card,
html.a11y-high-contrast .instructor-profile-card,
html.a11y-high-contrast .rich-section,
html.a11y-high-contrast .rich-section-body,
html.a11y-high-contrast .internal-quiz-question,
html.a11y-high-contrast .internal-quiz-options label > span,
html.a11y-high-contrast .feature-toolbar,
html.a11y-high-contrast .student-toolbar,
html.a11y-high-contrast .analytics-stat-card,
html.a11y-high-contrast .analytics-panel,
html.a11y-high-contrast .submission-review-card,
html.a11y-high-contrast .assignment-status-box {
  color: #fff !important;
  background: #000 !important;
  border-color: #fff !important;
  box-shadow: none !important;
}
html.a11y-high-contrast :where(h1,h2,h3,h4,strong,label,p,span,small,td,th,legend) { color: inherit; }
html.a11y-high-contrast :where(input,textarea,select) {
  color: #fff !important;
  background: #000 !important;
  border: 2px solid #fff !important;
}
html.a11y-high-contrast :where(input,textarea)::placeholder { color: #d7d7d7 !important; opacity: 1; }
html.a11y-high-contrast .primary-button,
html.a11y-high-contrast .nav-item.active,
html.a11y-high-contrast .filter-button.active {
  color: #000 !important;
  background: #ffdf00 !important;
  border-color: #ffdf00 !important;
  box-shadow: none !important;
}
html.a11y-high-contrast .outline-button,
html.a11y-high-contrast .text-button,
html.a11y-high-contrast .a11y-button {
  color: #ffdf00 !important;
  background: #000 !important;
  border: 2px solid #ffdf00 !important;
}
html.a11y-high-contrast .nav-item { color: #fff !important; }
html.a11y-high-contrast .status-pill,
html.a11y-high-contrast .due-chip,
html.a11y-high-contrast .score-chip,
html.a11y-high-contrast .type-chip,
html.a11y-high-contrast .badge {
  color: #000 !important;
  background: #00e5ff !important;
  border: 1px solid #000 !important;
}
html.a11y-high-contrast .a11y-toolbar { background: #000; border: 2px solid #ffdf00; }
html.a11y-high-contrast a { color: #62e8ff; text-decoration: underline; }
html.a11y-high-contrast .progress-bar { background: #444 !important; border: 1px solid #fff; }
html.a11y-high-contrast .progress-bar span { background: #ffdf00 !important; }
html.a11y-high-contrast .muted,
html.a11y-high-contrast .field-help,
html.a11y-high-contrast .login-help { color: #f4f4f4 !important; }

/* Extra large text gets simpler layouts before content begins to overflow. */
html.a11y-extra-large-text .stats-grid,
html.a11y-extra-large-text .score-summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
html.a11y-extra-large-text .topbar { min-height: 92px; }
html.a11y-extra-large-text .nav-item { padding-top: 14px; padding-bottom: 14px; }

/* Mobile-first interaction refinements */
@media (max-width: 780px) {
  .sidebar {
    width: min(88vw, 330px);
    height: 100dvh;
    padding: 68px 14px max(14px, env(safe-area-inset-bottom));
    transform: translateX(-105%);
    box-shadow: 20px 0 48px rgba(6,23,43,.28);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-close-button { display: grid; }
  .sidebar-brand { padding: 0 52px 18px 6px; }
  .nav-menu { gap: 5px; }
  .nav-item { min-height: 50px; padding: 12px; }
  .sidebar-footer { padding: 12px 8px 2px; }

  .topbar {
    min-height: 66px;
    padding: 9px 12px;
    gap: 9px;
  }
  .menu-toggle {
    flex: 0 0 46px;
    width: 46px;
    height: 46px;
    display: grid;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: 13px;
    background: var(--surface);
  }
  .topbar > div:nth-child(2) {
    display: block;
    min-width: 0;
    flex: 1 1 auto;
  }
  .topbar > div:nth-child(2) h2 {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 1.05rem;
  }
  .topbar > div:nth-child(2) p { display: none; }
  .user-menu { flex: 0 0 auto; gap: 5px; }
  .user-menu .avatar { width: 38px; height: 38px; }
  #logoutButton { min-width: 44px; padding: 9px 10px; font-size: .82rem; }

  .content-area { padding: 14px 12px calc(86px + env(safe-area-inset-bottom)); }
  .view-section { width: 100%; }
  .panel, .stat-card, .lesson-card, .assignment-card, .resource-card, .discussion-card { border-radius: 16px; }
  .panel { padding: 17px; }
  .section-heading, .panel-heading { align-items: flex-start; flex-direction: column; }
  .feature-toolbar { align-items: stretch; flex-direction: column; padding: 14px; }
  .feature-toolbar label, .feature-toolbar select, .feature-toolbar button { width: 100%; min-width: 0; }

  .table-wrap {
    width: 100%;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    -webkit-overflow-scrolling: touch;
    border: 1px solid var(--border);
    border-radius: 14px;
  }
  .table-wrap table { min-width: 720px; }

  .feature-dialog,
  .feature-dialog-wide,
  .internal-quiz-dialog,
  .student-program-dialog {
    width: 100vw;
    max-width: none;
    max-height: 100dvh;
    height: auto;
    margin: auto 0 0;
    padding: 22px 16px calc(22px + env(safe-area-inset-bottom));
    border-radius: 22px 22px 0 0;
  }
  .dialog-close { width: 46px; height: 46px; }
  .feature-form label { line-height: 1.55; }
  .feature-form textarea { min-height: 150px; }
  #assignmentSubmitForm .primary-button,
  #discussionReplyForm .primary-button { width: 100%; min-height: 52px; }

  .assignment-actions,
  .resource-card-actions { display: grid; grid-template-columns: 1fr; }
  .assignment-actions > *,
  .resource-card-actions > * { width: 100%; justify-content: center; }

  .internal-quiz-options label > span {
    min-height: 58px;
    padding: 13px 14px;
    font-size: 1rem;
    line-height: 1.55;
  }
  .internal-quiz-options label > span > strong { width: 34px; height: 34px; }
  .internal-quiz-form .dialog-form-actions {
    position: sticky;
    z-index: 5;
    bottom: calc(-24px - env(safe-area-inset-bottom));
    margin: 20px -16px -24px;
    padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
    background: rgba(255,255,255,.96);
    border-top: 1px solid var(--border);
    backdrop-filter: blur(10px);
  }
  html.a11y-high-contrast .internal-quiz-form .dialog-form-actions { background: #000; }
  .internal-quiz-form .dialog-form-actions button { min-height: 52px; }

  input, textarea, select { font-size: 16px; }
  .a11y-toolbar { right: 8px; gap: 4px; padding: 5px; }
  .a11y-button { min-width: 42px; min-height: 42px; }
}

@media (max-width: 520px) {
  .login-page { min-height: 100dvh; }
  .login-hero { padding: 32px 20px; }
  .login-hero h1 { font-size: clamp(2.25rem, 12vw, 3.1rem); }
  .login-panel { padding: 14px 12px 82px; }
  .login-card { padding: 25px 18px; border-radius: 20px; }
  .login-card .primary-button,
  .login-card .auth-switch-button { min-height: 50px; }

  .stats-grid,
  html.a11y-extra-large-text .stats-grid,
  html.a11y-extra-large-text .score-summary { grid-template-columns: 1fr; }
  .welcome-card { min-height: auto; padding: 22px 18px; }
  .course-item { grid-template-columns: 42px minmax(0,1fr); }
  .course-item > :last-child { grid-column: 1 / -1; width: 100%; }
  .progress-bar { width: 100%; }
  .topbar > div:nth-child(2) h2 { max-width: 38vw; }
  .user-menu .avatar { display: none; }
  #logoutButton { font-size: 0; width: 44px; }
  #logoutButton::after { content: "ออก"; font-size: .82rem; }
}

@media (max-width: 380px) {
  .a11y-toolbar { left: 8px; right: 8px; justify-content: center; }
  .topbar > div:nth-child(2) h2 { max-width: 42vw; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

/* Compact accessibility launcher on small screens */
.a11y-controls { display: flex; gap: 6px; }
.a11y-menu-button {
  display: none;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 2px solid #fff;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, #123a62, #f47a20);
  box-shadow: 0 10px 26px rgba(13,45,76,.28);
  font-weight: 900;
}
@media (max-width: 780px) {
  .a11y-toolbar {
    left: auto;
    right: 10px;
    bottom: max(10px, env(safe-area-inset-bottom));
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
  }
  .a11y-menu-button { display: grid; }
  .a11y-controls {
    position: absolute;
    right: 0;
    bottom: 56px;
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: 7px;
    border: 1px solid rgba(20,55,88,.18);
    border-radius: 15px;
    background: rgba(255,255,255,.97);
    box-shadow: 0 12px 32px rgba(19,43,72,.22);
  }
  .a11y-toolbar.is-open .a11y-controls { display: flex; }
  html.a11y-high-contrast .a11y-controls { background: #000; border: 2px solid #ffdf00; }
  html.a11y-high-contrast .a11y-menu-button { color: #000; background: #ffdf00; border-color: #fff; }
}
@media (max-width: 380px) {
  .a11y-toolbar { left: auto; right: 8px; justify-content: initial; }
}
@media (max-width: 780px) {
  #assignmentSubmitForm .mobile-submit-button {
    position: sticky;
    z-index: 4;
    bottom: max(0px, env(safe-area-inset-bottom));
    box-shadow: 0 10px 26px rgba(220,92,8,.26);
  }
}

/* =========================================================
   NBCC LMS v6.8 — Timed midterm and final examinations
   ========================================================= */
.exam-toolbar { align-items: center; justify-content: space-between; }
.exam-toolbar-note { display: flex; align-items: center; gap: 10px; max-width: 560px; color: var(--muted); }
.exam-toolbar-note > span { font-size: 1.35rem; }
.exam-toolbar-note small { line-height: 1.55; }
.exam-form-grid .check-row { align-self: end; }
.exam-builder-heading,
.exam-question-editor-heading,
.exam-card-heading,
.exam-results-heading,
.timed-exam-header-top,
.timed-exam-progress-row,
.timed-exam-submit-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.exam-builder-heading { margin: 28px 0 14px; }
.exam-builder-heading h3,
.exam-builder-heading p,
.exam-question-editor-heading strong,
.exam-results-heading h2 { margin: 0; }
.exam-builder-heading p { margin-top: 4px; color: var(--muted); }
.exam-question-list { display: grid; gap: 16px; }
.exam-question-editor {
  display: grid;
  gap: 14px;
  padding: 20px;
  border: 1px solid #dce6ef;
  border-radius: 18px;
  background: linear-gradient(180deg, #fff, #f9fbfd);
}
.exam-question-editor-heading { padding-bottom: 10px; border-bottom: 1px solid #e5ebf1; }
.exam-option-editor-grid,
.exam-question-setting-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.exam-question-setting-grid { grid-template-columns: minmax(180px, .6fr) minmax(150px, .4fr); }
.exam-form-actions { margin-top: 20px; }
.danger-text { color: #b42318; }

.exam-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 20px;
}
.exam-card {
  display: grid;
  gap: 15px;
  padding: 22px;
  border: 1px solid #dce5ee;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 10px 28px rgba(26, 56, 88, .08);
}
.exam-card h3 { margin: 8px 0 0; color: #173e63; font-size: 1.2rem; }
.exam-card > p { margin: 0; color: var(--muted); line-height: 1.65; }
.exam-type-chip,
.exam-status,
.exam-publish-note {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 800;
}
.exam-type-chip { padding: 6px 10px; color: #173e63; background: #edf4fa; }
.exam-type-chip.final { color: #7a2e00; background: #fff0e5; }
.exam-status { flex: 0 0 auto; padding: 7px 10px; }
.exam-status.open { color: #05603a; background: #e8f8ef; }
.exam-status.scheduled { color: #725400; background: #fff7d6; }
.exam-status.closed { color: #6b7280; background: #edf0f3; }
.exam-status.submitted { color: #1354a0; background: #eaf2ff; }
.exam-status.in-progress { color: #9a4a00; background: #fff0df; }
.exam-card-meta,
.exam-results-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 9px;
}
.exam-card-meta span,
.exam-results-summary span {
  display: grid;
  gap: 2px;
  min-width: 0;
  padding: 10px;
  border: 1px solid #e0e7ee;
  border-radius: 13px;
  background: #f8fafc;
}
.exam-card-meta strong,
.exam-results-summary strong { color: #173e63; font-size: 1rem; }
.exam-card-meta small,
.exam-results-summary small { color: var(--muted); font-size: .72rem; }
.exam-schedule-list { display: grid; gap: 8px; margin: 0; }
.exam-schedule-list > div { display: grid; grid-template-columns: 78px 1fr; gap: 10px; }
.exam-schedule-list dt { color: var(--muted); }
.exam-schedule-list dd { margin: 0; font-weight: 700; color: #314c66; }
.exam-publish-note { padding: 7px 10px; color: #654b00; background: #fff6d7; }
.exam-card-actions { display: flex; flex-wrap: wrap; gap: 9px; margin-top: auto; }
.exam-card-actions button { flex: 1 1 120px; }

.timed-exam-dialog { overflow: auto; }
.timed-exam-header { padding-right: 78px; }
.timed-exam-header-top { align-items: flex-start; }
.timed-exam-timer {
  display: grid;
  gap: 2px;
  min-width: 158px;
  padding: 12px 16px;
  border: 1px solid rgba(255,255,255,.32);
  border-radius: 16px;
  text-align: center;
  background: rgba(255,255,255,.12);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.04);
}
.timed-exam-timer small { color: rgba(255,255,255,.78); }
.timed-exam-timer strong { color: #fff; font-size: 1.5rem; letter-spacing: .05em; font-variant-numeric: tabular-nums; }
.timed-exam-timer.warning { background: #9a5f00; }
.timed-exam-timer.danger { background: #a61b1b; animation: exam-timer-pulse 1s ease-in-out infinite; }
@keyframes exam-timer-pulse { 50% { transform: scale(1.025); } }
.timed-exam-progress-row {
  position: sticky;
  z-index: 4;
  top: 0;
  margin: -26px -30px 20px;
  padding: 13px 30px;
  border-bottom: 1px solid #dce5ed;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(10px);
}
.timed-exam-progress-row strong { color: #173e63; }
.timed-exam-progress-row small { color: var(--muted); }
.timed-exam-submit-bar {
  position: sticky;
  z-index: 4;
  bottom: -30px;
  margin: 22px -30px -30px;
  padding: 15px 30px;
  border-top: 1px solid #dce5ed;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(10px);
}
.timed-exam-submit-bar > span { color: var(--muted); font-size: .86rem; }
.exam-submit-icon {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  color: #fff;
  background: #198754;
  font-size: 2rem;
  font-weight: 900;
}

.exam-results-dialog { width: min(1180px, calc(100vw - 28px)); max-height: 92vh; overflow: auto; }
.exam-results-heading { margin: 4px 0 18px; padding-right: 40px; }
.exam-results-summary { margin-bottom: 18px; }
.exam-results-table { min-width: 1050px; }

html.a11y-high-contrast .exam-card,
html.a11y-high-contrast .exam-question-editor,
html.a11y-high-contrast .exam-card-meta span,
html.a11y-high-contrast .exam-results-summary span,
html.a11y-high-contrast .timed-exam-progress-row,
html.a11y-high-contrast .timed-exam-submit-bar {
  color: #fff !important;
  background: #000 !important;
  border-color: #fff !important;
  box-shadow: none !important;
}
html.a11y-high-contrast .exam-card h3,
html.a11y-high-contrast .exam-card-meta strong,
html.a11y-high-contrast .exam-results-summary strong,
html.a11y-high-contrast .timed-exam-progress-row strong { color: #fff !important; }
html.a11y-high-contrast .exam-type-chip,
html.a11y-high-contrast .exam-status,
html.a11y-high-contrast .exam-publish-note { color: #000 !important; background: #00e5ff !important; }
html.a11y-high-contrast .timed-exam-timer { color: #000 !important; background: #ffdf00 !important; border-color: #fff !important; }
html.a11y-high-contrast .timed-exam-timer :where(small,strong) { color: #000 !important; }

@media (max-width: 900px) {
  .exam-grid { grid-template-columns: 1fr; }
  .exam-card-meta,
  .exam-results-summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .exam-toolbar,
  .exam-builder-heading,
  .exam-card-heading,
  .exam-results-heading,
  .timed-exam-header-top,
  .timed-exam-submit-bar { align-items: stretch; flex-direction: column; }
  .exam-option-editor-grid,
  .exam-question-setting-grid { grid-template-columns: 1fr; }
  .exam-card { padding: 17px; }
  .exam-status { align-self: flex-start; }
  .exam-schedule-list > div { grid-template-columns: 72px 1fr; }
  .timed-exam-header { padding: 24px 58px 20px 20px; }
  .timed-exam-timer { width: 100%; min-width: 0; }
  .timed-exam-progress-row { margin: -20px -16px 18px; padding: 12px 16px; }
  .timed-exam-submit-bar { bottom: -24px; margin: 18px -16px -24px; padding: 14px 16px; }
  .timed-exam-submit-bar button { width: 100%; }
  .exam-results-heading { padding-right: 34px; }
}

/* v1.3 Flexible score policy and paper-exam entry */
.score-policy-editor {
  border: 1px solid #dbe4ee;
  border-radius: 22px;
  padding: 20px;
  background: linear-gradient(145deg, #f8fbff, #fffaf4);
}
.score-policy-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 16px;
}
.score-policy-heading h3 { margin: 0 0 6px; color: #102f51; }
.score-policy-heading p { margin: 0; color: #65758b; }
.score-policy-master { min-width: 280px; justify-content: flex-start; font-weight: 700; }
.score-policy-grid { display: grid; gap: 10px; transition: opacity .2s ease; }
.score-policy-grid.score-policy-disabled { opacity: .55; }
.score-policy-row {
  display: grid;
  grid-template-columns: minmax(230px, 1fr) minmax(130px, 180px);
  gap: 14px;
  align-items: end;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid #e1e8f0;
  background: #fff;
}
.score-policy-row.score-policy-exam-row { grid-template-columns: minmax(210px, .8fr) minmax(120px, 160px) minmax(280px, 1.2fr); }
.score-policy-row .check-row { align-self: center; font-weight: 700; }
.score-policy-row label { margin: 0; }
.score-policy-footer { display: flex; justify-content: space-between; gap: 16px; margin-top: 14px; flex-wrap: wrap; }
.score-policy-public-note {
  margin-top: 14px;
  border-radius: 14px;
  padding: 12px 14px;
  display: grid;
  gap: 4px;
  background: #f4f6f8;
  color: #536174;
}
.score-policy-public-note.enabled { background: #eefaf3; color: #19633a; border: 1px solid #cdebd9; }
.score-policy-public-note strong { color: inherit; }
.manual-score-grid-four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.manual-exam-score-box { background: linear-gradient(145deg, #fffaf3, #fff); }
.manual-online-exam-summary {
  display: grid;
  gap: 2px;
  padding: 10px 12px;
  margin: 2px 0 10px;
  border-radius: 12px;
  background: #f1f6fb;
  color: #26455f;
}
.manual-online-exam-summary strong { font-size: 1rem; }
.manual-online-exam-summary span { font-size: .82rem; color: #65758b; }
.course-score-total-row td { background: #f7fafc; border-top: 2px solid #d9e3ed; }
.course-score-total-row small { display: block; color: #65758b; margin-top: 3px; }
.exam-counts-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 8px;
  padding: 5px 9px;
  border-radius: 999px;
  background: #eaf7ef;
  color: #1f6b42;
  font-size: .8rem;
  font-weight: 700;
}
.exam-counts-chip.off { background: #f2f3f5; color: #6e7580; }
@media (max-width: 900px) {
  .score-policy-heading { flex-direction: column; }
  .score-policy-master { min-width: 0; }
  .score-policy-row,
  .score-policy-row.score-policy-exam-row,
  .manual-score-grid-four { grid-template-columns: 1fr; }
}


@media (max-width: 700px) {
  #lessonsSection .filter-row { display: grid; grid-template-columns: 1fr; }
  #lessonsSection .filter-row .filter-button { width: 100%; max-width: none; border-radius: 14px; }
}


/* v1.6.4 flexible lesson quiz score */
.lesson-quiz-scale-card {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 300px);
  gap: 18px;
  align-items: end;
  padding: 18px;
  border: 1px solid #b9d8f1;
  border-radius: 17px;
  background: linear-gradient(135deg, #f4faff, #fffaf5);
}
.lesson-quiz-scale-card strong { display: block; color: #173e63; font-size: 1.05rem; }
.lesson-quiz-scale-card p { margin: 7px 0 0; color: #5e6c83; line-height: 1.65; }
.lesson-quiz-scale-card label { margin: 0; }

.manual-quiz-scale-editor {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(180px, 250px) minmax(190px, 260px);
  gap: 16px;
  align-items: end;
  margin: 14px 0 18px;
  padding: 16px;
  border: 1px solid #cbddeb;
  border-radius: 16px;
  background: #f7fbff;
}
.manual-quiz-scale-editor h3 { margin: 0 0 6px; color: #173e63; }
.manual-quiz-scale-editor p { margin: 0; color: #5e6c83; line-height: 1.55; }
.manual-quiz-scale-editor label { margin: 0; }
.manual-quiz-converted-preview {
  min-height: 64px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 12px 14px;
  border-radius: 13px;
  background: #eaf4fc;
}
.manual-quiz-converted-preview strong { color: #173e63; font-size: 1.2rem; }
.manual-quiz-converted-preview span { color: #5e6c83; line-height: 1.45; font-size: .9rem; }

@media (max-width: 760px) {
  .lesson-quiz-scale-card,
  .manual-quiz-scale-editor { grid-template-columns: 1fr; }
}
/* =========================================================
   NBCC LMS v1.6.5 — Exam editor convenience and exam warning
   ========================================================= */
.exam-add-question-bottom {
  border-color: #f07a18;
  color: #b94900;
  background: #fff8f1;
}
.exam-add-question-bottom:hover { background: #fff0e2; }
.timed-exam-security-warning {
  display: grid;
  gap: 7px;
  margin: -12px 0 22px;
  padding: 15px 18px;
  border: 2px solid #d92d20;
  border-radius: 15px;
  color: #7a1710;
  background: #fff1ef;
  box-shadow: 0 8px 20px rgba(180, 35, 24, .10);
}
.timed-exam-security-warning strong { font-size: 1rem; }
.timed-exam-security-warning span { line-height: 1.65; }
html.a11y-high-contrast .timed-exam-security-warning {
  color: #000 !important;
  background: #ffdf00 !important;
  border-color: #fff !important;
}
@media (max-width: 680px) {
  .exam-form-actions { align-items: stretch; flex-direction: column; }
  .exam-form-actions button { width: 100%; }
  .timed-exam-security-warning { margin-top: -6px; padding: 13px 14px; }
}


/* v1.6.6 Exam Focus Mode */
.timed-exam-dialog { position: relative; }
.timed-exam-focus-status {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 14px 0;
}
.timed-exam-focus-status > span {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid #f6b889;
  border-radius: 14px;
  padding: 12px 14px;
  background: #fff8f2;
}
.timed-exam-focus-status strong { color: #9a3412; }
.timed-exam-focus-status small { color: #64748b; }
.timed-exam-focus-status.is-danger > span {
  border-color: #ef4444;
  background: #fff1f2;
}
.timed-exam-focus-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(8px);
}
.timed-exam-focus-overlay.hidden { display: none !important; }
.timed-exam-focus-overlay-card {
  width: min(560px, 100%);
  border-radius: 24px;
  padding: 30px;
  text-align: center;
  background: #ffffff;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.35);
}
.timed-exam-focus-overlay-card h3 {
  margin: 12px 0 10px;
  color: #991b1b;
  font-size: 1.45rem;
}
.timed-exam-focus-overlay-card p {
  margin: 0 0 20px;
  color: #475569;
  line-height: 1.75;
}
.timed-exam-focus-icon { font-size: 3rem; }
.exam-status.locked { background: #fee2e2; color: #991b1b; }
.exam-integrity-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 9px;
  border-radius: 999px;
  background: #fff7ed;
  color: #9a3412;
  font-size: .82rem;
  font-weight: 700;
}
@media (max-width: 620px) {
  .timed-exam-focus-status { grid-template-columns: 1fr; }
  .timed-exam-focus-overlay-card { padding: 24px 18px; }
}


/* =========================================================
   NBCC LMS WITTAYA v1.3 — Official navy/gold login redesign
   Uses the approved mockup selected by the course owner.
   ========================================================= */
#loginView.login-page {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(560px, 1.62fr) minmax(410px, .98fr);
  grid-template-rows: minmax(0, 1fr) auto;
  grid-template-areas:
    "hero panel"
    "footer footer";
  overflow: hidden;
  background: #f4f5f7;
}

#loginView .login-hero {
  grid-area: hero;
  min-width: 0;
  min-height: 690px;
  padding: 0;
  isolation: isolate;
  background-color: #062a55;
  background-image: url("assets/nbcc-login-hero-official-v1.webp");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  border-right: 1px solid rgba(255,255,255,.36);
}

/* Keep the original text available to assistive technology while the
   approved visual artwork is displayed as the desktop hero. */
#loginView .login-hero > * {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
#loginView .login-hero::before,
#loginView .login-hero::after { display: none !important; }

#loginView .login-panel {
  grid-area: panel;
  min-width: 0;
  padding: clamp(24px, 3vw, 52px);
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 95% 5%, rgba(203,151,43,.10), transparent 30%),
    linear-gradient(180deg, #f9f8f6 0%, #eef1f5 100%);
}

#loginView .login-card {
  width: min(500px, 100%);
  max-height: calc(100svh - 150px);
  overflow-y: auto;
  padding: clamp(30px, 3.1vw, 48px);
  border: 1px solid rgba(255,255,255,.96);
  border-radius: 32px;
  background: rgba(255,255,255,.96);
  box-shadow:
    0 30px 80px rgba(11,38,74,.16),
    0 3px 12px rgba(11,38,74,.06);
  scrollbar-width: thin;
  scrollbar-color: #d5a63d transparent;
}
#loginView .login-card::before {
  height: 4px;
  background: linear-gradient(90deg, #d29b27, #f3d27d, #0b3769);
}
#loginView .college-mark-logo {
  width: 118px;
  height: 118px;
  margin: 0 auto 8px;
  padding: 6px;
  border-radius: 24px;
  background: #fff;
  box-shadow: none;
}
#loginView .login-card h2 {
  margin: 12px 0 6px;
  color: #082e60;
  font-size: clamp(1.75rem, 2.4vw, 2.3rem);
  line-height: 1.25;
  text-align: center;
}
#loginView .login-card > .muted {
  max-width: 370px;
  margin: 0 auto 20px;
  text-align: center;
  line-height: 1.65;
}
#loginView .login-card label {
  color: #102f57;
  font-weight: 800;
}
#loginView .login-card input,
#loginView .login-card select,
#loginView .login-card textarea {
  min-height: 54px;
  border: 1px solid #d5dbe4;
  border-radius: 12px;
  color: #17253a;
  background: #fff;
}
#loginView .login-card input:focus,
#loginView .login-card select:focus,
#loginView .login-card textarea:focus {
  border-color: #bd8b21;
  box-shadow: 0 0 0 4px rgba(189,139,33,.13);
}
#loginView .forgot-password-button {
  color: #0a4d91;
  font-weight: 800;
}
#loginView .login-card .primary-button {
  min-height: 56px;
  margin-top: 20px;
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(90deg, #082f61 0%, #0b407a 64%, #d7aa4b 100%);
  box-shadow: 0 12px 26px rgba(8,47,97,.20);
  font-size: 1.05rem;
}
#loginView .login-card .outline-button {
  min-height: 52px;
  border: 1.5px solid #b88820;
  border-radius: 12px;
  color: #092f5e;
  background: #fff;
  font-weight: 800;
}
#loginView .login-card .outline-button:hover {
  border-color: #8f6818;
  color: #092f5e;
  background: #fffaf0;
}
#loginView .login-help {
  margin-top: 24px;
  color: #6b7280;
  line-height: 1.7;
}

.login-contact-footer {
  grid-area: footer;
  min-height: 104px;
  display: grid;
  grid-template-columns: 1.5fr .75fr .75fr;
  align-items: center;
  gap: 20px;
  padding: 18px clamp(28px, 4vw, 76px);
  border-top: 3px solid #c9972d;
  color: #0c315d;
  background: #fff;
  box-shadow: 0 -10px 34px rgba(13,45,80,.07);
}
.login-contact-item {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 14px;
}
.login-contact-item + .login-contact-item {
  padding-left: 24px;
  border-left: 1px solid #d9dee6;
}
.login-contact-icon {
  flex: 0 0 46px;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 2px solid #c9972d;
  border-radius: 50%;
  color: #c28b17;
  font-size: 1.35rem;
  font-weight: 900;
}
.login-contact-item strong,
.login-contact-item span,
.login-contact-item a {
  display: block;
  min-width: 0;
}
.login-contact-item strong {
  color: #082f61;
  font-size: .94rem;
  font-weight: 900;
}
.login-contact-item span,
.login-contact-item a {
  margin-top: 2px;
  color: #44566f;
  text-decoration: none;
  line-height: 1.45;
}
.login-contact-item a:hover {
  color: #9b6d0f;
  text-decoration: underline;
}

/* Medium screens: retain the approved split layout while tightening it. */
@media (max-width: 1180px) {
  #loginView.login-page {
    grid-template-columns: minmax(480px, 1.28fr) minmax(390px, .92fr);
  }
  #loginView .login-panel { padding: 24px; }
  #loginView .login-card { padding: 34px 30px; }
  .login-contact-footer { grid-template-columns: 1.35fr .8fr .8fr; padding-inline: 28px; }
}

/* Tablets and phones: login remains fully usable; the approved hero becomes
   a wide banner above the form. */
@media (max-width: 900px) {
  #loginView.login-page {
    overflow: visible;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    grid-template-areas:
      "hero"
      "panel"
      "footer";
  }
  #loginView .login-hero {
    min-height: clamp(330px, 69vw, 610px);
    background-size: cover;
    background-position: center center;
    border-right: 0;
    border-bottom: 3px solid #c9972d;
  }
  #loginView .login-panel { padding: 24px 16px 34px; }
  #loginView .login-card {
    width: min(560px, 100%);
    max-height: none;
    overflow: visible;
  }
  .login-contact-footer {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 24px;
  }
  .login-contact-item + .login-contact-item {
    padding: 16px 0 0;
    border-top: 1px solid #d9dee6;
    border-left: 0;
  }
}

@media (max-width: 520px) {
  #loginView .login-hero {
    min-height: 355px;
    background-position: 47% center;
  }
  #loginView .login-panel { padding: 14px 10px 28px; }
  #loginView .login-card {
    padding: 28px 18px;
    border-radius: 24px;
  }
  #loginView .college-mark-logo { width: 92px; height: 92px; }
  #loginView .login-card h2 { font-size: 1.65rem; }
  .login-contact-footer { padding: 22px 18px 92px; }
  .login-contact-icon { flex-basis: 40px; width: 40px; height: 40px; }
}

/* Keep high contrast mode functional with the redesign. */
html.a11y-high-contrast #loginView .login-hero {
  background-image: none !important;
  background-color: #000 !important;
  min-height: 280px;
}
html.a11y-high-contrast #loginView .login-hero > * {
  position: static !important;
  width: auto !important;
  height: auto !important;
  padding: initial !important;
  margin: initial !important;
  overflow: visible !important;
  clip: auto !important;
  white-space: normal !important;
  border: initial !important;
}
html.a11y-high-contrast .login-contact-footer,
html.a11y-high-contrast .login-contact-item,
html.a11y-high-contrast .login-contact-item strong,
html.a11y-high-contrast .login-contact-item span,
html.a11y-high-contrast .login-contact-item a {
  color: #fff !important;
  background: #000 !important;
  border-color: #ffdf00 !important;
}

/* =========================================================
   NBCC LMS URAI v1.0.3 — Desktop login full-view adjustment
   Keep every login action visible without scrolling on common
   notebook/desktop viewport heights. Registration remains scrollable.
   ========================================================= */
@media (min-width: 901px) {
  #loginView.login-page {
    grid-template-rows: minmax(0, 1fr) auto;
  }

  #loginView .login-hero {
    min-height: 0;
  }

  #loginView .login-panel {
    padding: clamp(12px, 1.6vw, 24px);
  }

  #loginView #loginForm.login-card {
    width: min(480px, 100%);
    max-height: none;
    overflow: visible;
    padding: clamp(18px, 2.2vh, 26px) clamp(24px, 2vw, 34px);
    border-radius: 26px;
  }

  #loginView #loginForm .college-mark-logo {
    width: 76px;
    height: 76px;
    margin: 0 auto 2px;
    padding: 3px;
    border-radius: 18px;
  }

  #loginView #loginForm h2 {
    margin: 5px 0 2px;
    font-size: clamp(1.48rem, 2vw, 1.85rem);
    line-height: 1.2;
  }

  #loginView #loginForm > .muted {
    margin: 0 auto 7px;
    font-size: .86rem;
    line-height: 1.4;
  }

  #loginView #loginForm label {
    margin: 8px 0 4px;
    font-size: .87rem;
  }

  #loginView #loginForm input {
    min-height: 45px;
    padding: 9px 14px;
  }

  #loginView #loginForm .forgot-password-button {
    margin-top: 4px;
    font-size: .83rem;
    line-height: 1.25;
  }

  #loginView #loginForm .primary-button {
    min-height: 45px;
    margin-top: 8px;
    font-size: .98rem;
  }

  #loginView #loginForm .auth-switch-button {
    min-height: 42px;
    margin-top: 7px;
    font-size: .92rem;
  }

  #loginView #loginForm .form-message:empty {
    display: none;
  }

  #loginView #loginForm .login-help {
    margin: 8px 0 0;
    font-size: .74rem;
    line-height: 1.35;
  }

  .login-contact-footer {
    min-height: 82px;
    gap: 16px;
    padding-block: 10px;
  }

  .login-contact-icon {
    flex-basis: 38px;
    width: 38px;
    height: 38px;
    font-size: 1.08rem;
  }

  .login-contact-item strong {
    font-size: .88rem;
  }

  .login-contact-item span,
  .login-contact-item a {
    font-size: .82rem;
    line-height: 1.35;
  }
}

@media (min-width: 901px) and (max-height: 730px) {
  #loginView #loginForm.login-card {
    padding-block: 14px;
  }

  #loginView #loginForm .college-mark-logo {
    width: 62px;
    height: 62px;
  }

  #loginView #loginForm h2 {
    font-size: 1.4rem;
  }

  #loginView #loginForm > .muted,
  #loginView #loginForm .login-help {
    line-height: 1.25;
  }

  .login-contact-footer {
    min-height: 70px;
    padding-block: 7px;
  }
}

/* =========================================================
   Chantra v1.0.5 — Compact accessibility toolbar
   ลดขนาดแถบเครื่องมือช่วยการเข้าถึงเพื่อไม่บดบังข้อมูลส่วนท้าย
   ========================================================= */
@media (min-width: 781px) {
  .a11y-toolbar {
    right: 10px;
    bottom: max(8px, env(safe-area-inset-bottom));
    gap: 3px;
    padding: 4px;
    border-radius: 12px;
    box-shadow: 0 7px 20px rgba(19,43,72,.14);
  }
  .a11y-controls { gap: 3px; }
  .a11y-button {
    width: 34px;
    min-width: 34px;
    height: 34px;
    min-height: 34px;
    padding: 0;
    border-radius: 8px;
    font-size: .78rem;
  }
}

@media (max-width: 780px) {
  .a11y-menu-button {
    width: 40px;
    height: 40px;
    font-size: .82rem;
  }
  .a11y-controls {
    bottom: 47px;
    gap: 4px;
    padding: 5px;
    border-radius: 12px;
  }
  .a11y-button {
    width: 38px;
    min-width: 38px;
    height: 38px;
    min-height: 38px;
    padding: 0;
    border-radius: 9px;
    font-size: .78rem;
  }
}

/* =========================================================
   Course Mandatory Pre-Test Styling
   ========================================================= */
.course-pretest-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border: 2px solid #3b82f6;
  border-radius: 16px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.12);
  grid-column: 1 / -1;
  width: 100%;
}

.course-pretest-banner.completed {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  border-color: #22c55e;
  box-shadow: 0 4px 14px rgba(34, 197, 94, 0.1);
}

.pretest-banner-content {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  min-width: 0;
}

.pretest-banner-icon {
  font-size: 2.2rem;
  background: #ffffff;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
  flex-shrink: 0;
}

.pretest-banner-text h3 {
  font-family: 'Prompt', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: #1e3a8a;
  margin: 0 0 0.25rem;
}

.course-pretest-banner.completed .pretest-banner-text h3 {
  color: #15803d;
}

.pretest-banner-text p {
  color: #475569;
  font-size: 0.92rem;
  margin: 0 0 0.5rem;
  line-height: 1.5;
}

.pretest-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 600;
  background: #fee2e2;
  color: #b91c1c;
  margin-bottom: 0.4rem;
}

.pretest-tag.passed {
  background: #dcfce7;
  color: #15803d;
}

.pretest-action-btn {
  white-space: nowrap;
  font-family: 'Prompt', sans-serif;
  font-weight: 600;
  padding: 0.65rem 1.25rem;
  border-radius: 10px;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .course-pretest-banner {
    flex-direction: column;
    align-items: stretch;
  }
  .pretest-action-btn {
    width: 100%;
    text-align: center;
  }
}

/* =========================================================
   Course Cover Splash Page Styling (Pranee Executive Theme)
   ========================================================= */
.course-cover-splash {
  background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 2.5rem 3rem;
  box-shadow: 0 20px 40px -15px rgba(15, 53, 91, 0.08);
  margin-bottom: 2rem;
  animation: fadeInCover 0.4s ease-out;
}

@keyframes fadeInCover {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.cover-hero-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-bottom: 1.75rem;
  border-bottom: 2px solid #e2e8f0;
  margin-bottom: 2.25rem;
  flex-wrap: wrap;
}

.cover-inst-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.cover-logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.cover-inst-title {
  display: block;
  font-family: 'Prompt', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: #0f355b;
}

.cover-sys-badge {
  display: inline-block;
  font-family: 'Prompt', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: #2563eb;
  background: #eff6ff;
  padding: 0.15rem 0.6rem;
  border-radius: 9999px;
  margin-top: 0.2rem;
}

.cover-course-badge-row {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.badge-gold {
  background: #fef3c7;
  color: #b45309;
  font-weight: 700;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.84rem;
  font-family: 'Prompt', sans-serif;
}

.badge-blue {
  background: #e0e7ff;
  color: #3730a3;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.84rem;
  font-family: 'Prompt', sans-serif;
}

.badge-green {
  background: #dcfce7;
  color: #166534;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.84rem;
  font-family: 'Prompt', sans-serif;
}

.cover-body-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(320px, 1fr);
  gap: 3rem;
  align-items: start;
}

.cover-code-pill {
  display: inline-block;
  font-family: 'Prompt', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  color: #2563eb;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  padding: 0.25rem 0.85rem;
  border-radius: 8px;
  margin-bottom: 0.75rem;
}

.cover-main-title {
  font-family: 'Prompt', sans-serif;
  font-size: 2.35rem;
  font-weight: 800;
  color: #0f355b;
  line-height: 1.25;
  margin: 0 0 1.25rem;
}

.cover-main-title small {
  font-size: 1.3rem;
  font-weight: 500;
  color: #64748b;
  display: block;
  margin-top: 0.25rem;
}

.cover-synopsis {
  font-size: 1.05rem;
  line-height: 1.75;
  color: #334155;
  margin-bottom: 1.75rem;
  text-align: justify;
}

.cover-clo-box {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-left: 4px solid #2563eb;
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.75rem;
}

.clo-box-header {
  font-family: 'Prompt', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: #0f355b;
  margin-bottom: 0.75rem;
}

.clo-items-grid {
  display: grid;
  gap: 0.6rem;
}

.clo-item {
  font-size: 0.92rem;
  line-height: 1.5;
  color: #475569;
}

.clo-item strong {
  color: #1e3a8a;
  margin-right: 0.35rem;
}

.cover-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2.25rem;
}

.metric-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 1rem 0.75rem;
  text-align: center;
  box-shadow: 0 2px 6px rgba(0,0,0,0.03);
  transition: transform 0.2s;
}

.metric-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 14px rgba(37,99,235,0.08);
}

.metric-icon {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.metric-num {
  font-family: 'Prompt', sans-serif;
  font-size: 1.45rem;
  font-weight: 800;
  color: #0f355b;
}

.metric-label {
  font-size: 0.78rem;
  color: #64748b;
  font-weight: 500;
}

.cover-action-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.cover-btn-enter {
  font-family: 'Prompt', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  padding: 0.95rem 2rem;
  border-radius: 12px;
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.cover-btn-enter:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.4);
}

.cover-btn-pretest, .cover-btn-syllabus {
  font-family: 'Prompt', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.85rem 1.4rem;
  border-radius: 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

/* Right Column: Instructor Profile Card */
.cover-instructor-card {
  background: #ffffff;
  border: 2px solid #e2e8f0;
  border-radius: 18px;
  padding: 2rem 1.75rem;
  text-align: center;
  box-shadow: 0 12px 28px rgba(15, 53, 91, 0.07);
  position: sticky;
  top: 5rem;
}

.inst-photo-wrap {
  position: relative;
  width: 140px;
  height: 140px;
  margin: 0 auto 1.25rem;
}

.inst-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid #ffffff;
  box-shadow: 0 8px 20px rgba(15, 53, 91, 0.15);
}

.inst-status-badge {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  background: #16a34a;
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.15rem 0.65rem;
  border-radius: 9999px;
  white-space: nowrap;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.inst-name {
  font-family: 'Prompt', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: #0f355b;
  margin: 0 0 0.25rem;
}

.inst-title {
  font-size: 0.95rem;
  color: #2563eb;
  font-weight: 600;
  margin: 0 0 0.25rem;
}

.inst-dept {
  font-size: 0.88rem;
  color: #64748b;
  line-height: 1.4;
  margin: 0 0 1.25rem;
}

.inst-divider {
  height: 1px;
  background: #e2e8f0;
  margin: 1.25rem 0;
}

.inst-quote {
  background: #f8fafc;
  border-radius: 10px;
  padding: 0.85rem 1rem;
  font-size: 0.88rem;
  color: #475569;
  line-height: 1.5;
  margin-bottom: 1.25rem;
}

.inst-contact-list {
  display: grid;
  gap: 0.5rem;
  text-align: left;
  font-size: 0.88rem;
}

.inst-contact-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: #475569;
}

.inst-contact-item code {
  background: #eff6ff;
  color: #1e3a8a;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  font-size: 0.85rem;
}

/* Lessons Main Content Area */
.lessons-main-content {
  animation: fadeInCover 0.3s ease-out;
}

.lessons-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid #e2e8f0;
  flex-wrap: wrap;
}

.lessons-header-bar h2 {
  font-family: 'Prompt', sans-serif;
  font-size: 1.6rem;
  color: #0f355b;
  margin: 0 0 0.25rem;
}

.lessons-header-bar p {
  color: #64748b;
  margin: 0;
}

.back-to-cover-btn {
  font-family: 'Prompt', sans-serif;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.5rem 1.2rem;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
}

@media (max-width: 960px) {
  .cover-body-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .cover-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .course-cover-splash {
    padding: 1.5rem;
  }
}

/* =========================================================
   Pranee Front-page Hero Banner Styling
   ========================================================= */
#loginView .pranee-login-hero {
  background: linear-gradient(145deg, #091e3a 0%, #0f355b 45%, #164e63 100%) !important;
  background-image: radial-gradient(circle at 10% 20%, rgba(217, 119, 6, 0.15) 0%, transparent 40%),
                    radial-gradient(circle at 90% 80%, rgba(37, 99, 235, 0.25) 0%, transparent 50%),
                    linear-gradient(145deg, #091e3a 0%, #0f355b 45%, #164e63 100%) !important;
  color: #ffffff !important;
  padding: 3rem 3.5rem !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: center !important;
  box-sizing: border-box !important;
  position: relative !important;
  overflow: hidden !important;
}

.hero-brand-top {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.hero-brand-logo {
  width: 52px;
  height: 52px;
  object-fit: contain;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
}

.hero-brand-inst {
  display: block;
  font-family: 'Prompt', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.02em;
}

.hero-brand-tag {
  display: inline-block;
  font-family: 'Prompt', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fde68a;
  background: rgba(217, 119, 6, 0.25);
  border: 1px solid rgba(253, 230, 138, 0.3);
  padding: 0.15rem 0.6rem;
  border-radius: 9999px;
  margin-top: 0.25rem;
}

.hero-course-badge-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.hero-course-code {
  display: inline-block;
  font-family: 'Prompt', sans-serif;
  font-size: 0.95rem;
  font-weight: 800;
  color: #60a5fa;
  background: rgba(37, 99, 235, 0.25);
  border: 1px solid rgba(96, 165, 250, 0.4);
  padding: 0.25rem 0.85rem;
  border-radius: 8px;
  margin-bottom: 0.75rem;
  width: fit-content;
}

.hero-course-title {
  font-family: 'Prompt', sans-serif !important;
  font-size: clamp(2rem, 3.5vw, 2.85rem) !important;
  font-weight: 800 !important;
  color: #ffffff !important;
  line-height: 1.2 !important;
  margin: 0 0 1rem !important;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3) !important;
}

.hero-course-title small {
  font-size: 0.55em !important;
  font-weight: 500 !important;
  color: #cbd5e1 !important;
  display: block !important;
  margin-top: 0.2rem !important;
}

.hero-course-desc {
  font-size: 0.98rem !important;
  line-height: 1.65 !important;
  color: #e2e8f0 !important;
  max-width: 580px !important;
  margin-bottom: 1.5rem !important;
}

/* Instructor Box */
.hero-instructor-box {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  background: rgba(255, 255, 255, 0.09);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 16px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  max-width: 540px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.hero-inst-img {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid #f59e0b;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  flex-shrink: 0;
}

.hero-inst-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.hero-inst-role {
  font-size: 0.75rem;
  font-weight: 600;
  color: #fbbf24;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.hero-inst-name {
  font-family: 'Prompt', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
}

.hero-inst-dept {
  font-size: 0.82rem;
  color: #cbd5e1;
}

.hero-inst-email {
  font-size: 0.78rem;
  color: #93c5fd;
  margin-top: 0.15rem;
}

/* Stats Grid */
.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  max-width: 540px;
}

.hero-stat-item {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  padding: 0.65rem 0.5rem;
  text-align: center;
}

.hero-stat-item .stat-num {
  display: block;
  font-family: 'Prompt', sans-serif;
  font-size: 1.25rem;
  font-weight: 800;
  color: #fde68a;
  line-height: 1.2;
}

.hero-stat-item .stat-lbl {
  display: block;
  font-size: 0.7rem;
  color: #cbd5e1;
  margin-top: 0.2rem;
}

.hero-footer-note {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: #94a3b8;
}

.hero-footer-note span {
  color: #cbd5e1;
}

@media (max-width: 1024px) {
  #loginView .pranee-login-hero {
    padding: 2rem 1.5rem !important;
  }
  .hero-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* =========================================================
   OVERRIDE SCREEN-READER-ONLY HIDE FOR PRANEE HERO BANNER
   ========================================================= */
#loginView .pranee-login-hero {
  position: relative !important;
  overflow-y: auto !important;
  max-height: 100svh !important;
}

#loginView .pranee-login-hero > * {
  position: static !important;
  width: auto !important;
  height: auto !important;
  padding: 0 !important;
  margin: 0 !important;
  overflow: visible !important;
  clip: auto !important;
  white-space: normal !important;
  border: none !important;
}

#loginView .pranee-login-hero .hero-brand-top {
  display: flex !important;
  align-items: center !important;
  gap: 1rem !important;
  margin-bottom: 1.25rem !important;
}

#loginView .pranee-login-hero .hero-course-badge-row {
  display: flex !important;
  gap: 0.5rem !important;
  flex-wrap: wrap !important;
  margin-bottom: 1.25rem !important;
}

#loginView .pranee-login-hero .hero-course-code {
  display: inline-block !important;
  margin-bottom: 0.75rem !important;
}

#loginView .pranee-login-hero .hero-course-title {
  display: block !important;
}

#loginView .pranee-login-hero .hero-course-desc {
  display: block !important;
}

#loginView .pranee-login-hero .hero-instructor-box {
  display: flex !important;
  align-items: center !important;
  gap: 1.2rem !important;
  margin-bottom: 1.5rem !important;
}

#loginView .pranee-login-hero .hero-stats-grid {
  display: grid !important;
  grid-template-columns: repeat(4, 1fr) !important;
  gap: 0.75rem !important;
  margin-bottom: 1.5rem !important;
}

#loginView .pranee-login-hero .hero-footer-note {
  display: flex !important;
  gap: 1rem !important;
  flex-wrap: wrap !important;
}

/* =========================================================
   Large Instructor Spotlight & Split Layout
   ========================================================= */
#loginView.login-page {
  grid-template-columns: minmax(680px, 1.85fr) minmax(390px, 1fr) !important;
}

#loginView .pranee-login-hero {
  padding: 2.5rem 3rem !important;
}

.hero-split-layout {
  display: grid !important;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.95fr) !important;
  gap: 2.25rem !important;
  align-items: center !important;
  height: 100% !important;
}

.hero-text-content {
  display: flex !important;
  flex-direction: column !important;
  justify-content: center !important;
}

/* Instructor Spotlight Card (Large Photo) */
.hero-instructor-spotlight {
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
}

.spotlight-card {
  position: relative !important;
  background: rgba(255, 255, 255, 0.08) !important;
  backdrop-filter: blur(12px) !important;
  border: 2px solid rgba(255, 255, 255, 0.2) !important;
  border-radius: 24px !important;
  padding: 1rem 1rem 1.25rem !important;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35) !important;
  text-align: center !important;
  max-width: 320px !important;
  width: 100% !important;
  transition: transform 0.3s ease !important;
}

.spotlight-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45) !important;
}

.spotlight-img {
  width: 100% !important;
  height: 380px !important;
  object-fit: cover !important;
  object-position: top center !important;
  border-radius: 18px !important;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3) !important;
  border: 1px solid rgba(255, 255, 255, 0.3) !important;
  display: block !important;
}

.spotlight-badge {
  position: absolute !important;
  top: 1.65rem !important;
  right: 1.65rem !important;
  background: rgba(15, 23, 42, 0.85) !important;
  backdrop-filter: blur(6px) !important;
  color: #fde68a !important;
  font-family: 'Prompt', sans-serif !important;
  font-size: 0.72rem !important;
  font-weight: 700 !important;
  padding: 0.3rem 0.75rem !important;
  border-radius: 9999px !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.35rem !important;
  border: 1px solid rgba(253, 230, 138, 0.3) !important;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3) !important;
}

.spotlight-dot {
  width: 7px !important;
  height: 7px !important;
  background: #22c55e !important;
  border-radius: 50% !important;
  display: inline-block !important;
}

.spotlight-caption {
  margin-top: 0.85rem !important;
}

.spotlight-caption h4 {
  font-family: 'Prompt', sans-serif !important;
  font-size: 1.15rem !important;
  font-weight: 700 !important;
  color: #ffffff !important;
  margin: 0 0 0.15rem !important;
}

.spotlight-caption p {
  font-size: 0.82rem !important;
  color: #cbd5e1 !important;
  margin: 0 !important;
}

.hero-instructor-mini-info {
  display: flex !important;
  flex-direction: column !important;
  gap: 0.2rem !important;
  font-size: 0.85rem !important;
  color: #cbd5e1 !important;
  background: rgba(255, 255, 255, 0.06) !important;
  border: 1px solid rgba(255, 255, 255, 0.12) !important;
  border-radius: 10px !important;
  padding: 0.75rem 1rem !important;
}

.hero-instructor-mini-info strong {
  font-family: 'Prompt', sans-serif !important;
  color: #fde68a !important;
  font-size: 0.95rem !important;
}

@media (max-width: 1200px) {
  #loginView.login-page {
    grid-template-columns: 1fr !important;
  }
  .hero-split-layout {
    grid-template-columns: 1fr !important;
  }
  .spotlight-img {
    height: 300px !important;
  }
}

/* =========================================================
   PROMINENT INSTITUTION BRAND HEADER (LARGE & PRESTIGIOUS)
   ========================================================= */
.enhanced-brand-header {
  display: flex !important;
  align-items: center !important;
  gap: 1.4rem !important;
  margin-bottom: 1.75rem !important;
  padding: 1rem 1.4rem !important;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.04) 100%) !important;
  backdrop-filter: blur(14px) !important;
  border: 1.5px solid rgba(255, 255, 255, 0.22) !important;
  border-radius: 20px !important;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25), inset 0 1px 1px rgba(255, 255, 255, 0.3) !important;
  width: fit-content !important;
  max-width: 100% !important;
}

.hero-brand-logo-large {
  width: 82px !important;
  height: 82px !important;
  object-fit: contain !important;
  filter: drop-shadow(0 8px 18px rgba(0, 0, 0, 0.45)) drop-shadow(0 0 12px rgba(245, 158, 11, 0.3)) !important;
  flex-shrink: 0 !important;
  transition: transform 0.3s ease !important;
}

.hero-brand-logo-large:hover {
  transform: scale(1.05) rotate(-2deg) !important;
}

.brand-text-block {
  display: flex !important;
  flex-direction: column !important;
  gap: 0.15rem !important;
}

.hero-brand-inst-large {
  font-family: 'Prompt', sans-serif !important;
  font-size: 1.65rem !important;
  font-weight: 800 !important;
  color: #ffffff !important;
  margin: 0 !important;
  line-height: 1.2 !important;
  letter-spacing: 0.015em !important;
  text-shadow: 0 3px 12px rgba(0, 0, 0, 0.4) !important;
}

.hero-brand-en {
  font-family: 'Prompt', sans-serif !important;
  font-size: 0.88rem !important;
  font-weight: 500 !important;
  color: #cbd5e1 !important;
  letter-spacing: 0.03em !important;
  line-height: 1.2 !important;
  margin-bottom: 0.25rem !important;
}

.hero-brand-badge-large {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.45rem !important;
  font-family: 'Prompt', sans-serif !important;
  font-size: 0.82rem !important;
  font-weight: 700 !important;
  color: #fde68a !important;
  background: linear-gradient(90deg, rgba(217, 119, 6, 0.35) 0%, rgba(37, 99, 235, 0.35) 100%) !important;
  border: 1px solid rgba(253, 230, 138, 0.45) !important;
  padding: 0.25rem 0.85rem !important;
  border-radius: 9999px !important;
  width: fit-content !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2) !important;
}

.badge-pulse-dot {
  width: 8px !important;
  height: 8px !important;
  background: #22c55e !important;
  border-radius: 50% !important;
  box-shadow: 0 0 8px #22c55e !important;
  display: inline-block !important;
  animation: pulseGreen 2s infinite !important;
}

@keyframes pulseGreen {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

@media (max-width: 768px) {
  .enhanced-brand-header {
    padding: 0.85rem 1rem !important;
    gap: 1rem !important;
  }
  .hero-brand-logo-large {
    width: 62px !important;
    height: 62px !important;
  }
  .hero-brand-inst-large {
    font-size: 1.3rem !important;
  }
}

/* =========================================================
   EXTRA LARGE & PROMINENT INSTRUCTOR SPOTLIGHT
   ========================================================= */
#loginView.login-page {
  grid-template-columns: minmax(720px, 1.95fr) minmax(390px, 1fr) !important;
}

.hero-split-layout {
  display: grid !important;
  grid-template-columns: minmax(0, 1.05fr) minmax(380px, 1.15fr) !important;
  gap: 2rem !important;
  align-items: center !important;
}

.extra-large-spotlight {
  max-width: 480px !important;
  width: 100% !important;
  padding: 1.25rem 1.25rem 1.65rem !important;
  border-radius: 30px !important;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.16) 0%, rgba(15, 53, 91, 0.45) 100%) !important;
  backdrop-filter: blur(16px) !important;
  border: 2.5px solid rgba(253, 230, 138, 0.6) !important;
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.55),
    0 0 45px rgba(217, 119, 6, 0.35),
    inset 0 1px 1px rgba(255, 255, 255, 0.4) !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.extra-large-spotlight:hover {
  transform: translateY(-6px) scale(1.01) !important;
  box-shadow:
    0 40px 90px rgba(0, 0, 0, 0.65),
    0 0 60px rgba(217, 119, 6, 0.45) !important;
  border-color: rgba(253, 230, 138, 0.9) !important;
}

.spotlight-img-wrap {
  position: relative !important;
  border-radius: 22px !important;
  overflow: hidden !important;
}

.extra-large-img {
  width: 100% !important;
  height: clamp(440px, 52vh, 500px) !important;
  object-fit: cover !important;
  object-position: top center !important;
  border-radius: 22px !important;
  border: 2px solid rgba(255, 255, 255, 0.35) !important;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4) !important;
  display: block !important;
  transition: transform 0.4s ease !important;
}

.extra-large-spotlight:hover .extra-large-img {
  transform: scale(1.03) !important;
}

.spotlight-badge {
  position: absolute !important;
  top: 1.25rem !important;
  right: 1.25rem !important;
  background: rgba(15, 23, 42, 0.88) !important;
  backdrop-filter: blur(8px) !important;
  color: #fde68a !important;
  font-family: 'Prompt', sans-serif !important;
  font-size: 0.82rem !important;
  font-weight: 700 !important;
  padding: 0.35rem 0.9rem !important;
  border-radius: 9999px !important;
  border: 1px solid rgba(253, 230, 138, 0.5) !important;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4) !important;
}

.spotlight-caption {
  margin-top: 1.15rem !important;
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  gap: 0.2rem !important;
}

.spotlight-name-large {
  font-family: 'Prompt', sans-serif !important;
  font-size: 1.55rem !important;
  font-weight: 800 !important;
  color: #ffffff !important;
  margin: 0 !important;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5) !important;
  letter-spacing: 0.02em !important;
}

.spotlight-dept-large {
  font-family: 'Prompt', sans-serif !important;
  font-size: 0.95rem !important;
  font-weight: 600 !important;
  color: #fde68a !important;
  margin: 0 !important;
}

.spotlight-inst-tag {
  font-size: 0.82rem !important;
  color: #cbd5e1 !important;
  margin-top: 0.15rem !important;
}

@media (max-width: 1280px) {
  #loginView.login-page {
    grid-template-columns: 1fr !important;
  }
  .hero-split-layout {
    grid-template-columns: 1fr !important;
  }
  .extra-large-img {
    height: 380px !important;
  }
}