:root {
  --tta-red: #c62839;
  --tta-red-soft: #fcebed;
  --tta-navy: #16324f;
  --tta-teal: #0b7a75;
  --tta-amber: #f4a261;
  --tta-ink: #17212f;
  --tta-muted: #64748b;
  --tta-line: #d8e0ea;
  --tta-surface: #ffffff;
  --tta-surface-soft: #f7f9fc;
  --tta-page: #f3f6fb;
  --tta-shadow: 0 20px 50px rgba(18, 32, 53, 0.08);
  --tta-radius: 8px;
}

.landing-hero {
  padding: 58px 0 34px;
  background:
    linear-gradient(180deg, #ffffff 0%, rgba(255, 255, 255, 0) 100%),
    radial-gradient(circle at top left, rgba(198, 40, 57, 0.08), transparent 34%),
    var(--tta-page);
}

.landing-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.85fr);
  gap: 28px;
  align-items: stretch;
}

.landing-snapshot {
  padding: 26px;
}

.snapshot-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.snapshot-road {
  display: grid;
  gap: 12px;
}

.snapshot-road div {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--tta-line);
  border-radius: 8px;
  background: #fbfcff;
}

.snapshot-road strong {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: var(--tta-red-soft);
  color: var(--tta-red);
}

.landing-stats-band {
  padding-top: 18px;
}

.method-grid-landing {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.live-layout-landing,
.admin-live-layout {
  padding: 0;
}

.admin-live-layout {
  grid-template-columns: minmax(0, 1.42fr) minmax(320px, 0.8fr);
}

.admin-live-modal-dialog {
  max-width: min(1480px, calc(100vw - 28px));
}

.admin-modal-dialog {
  width: min(1080px, calc(100vw - 24px));
  max-width: min(1080px, calc(100vw - 24px));
  margin: 12px auto;
}

.admin-modal-dialog .modal-content,
.admin-live-modal-dialog .modal-content {
  max-height: calc(100dvh - 24px);
  overflow: hidden;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
}

.admin-modal-dialog .modal-body,
.admin-live-modal-dialog .modal-body {
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 20px;
}

#adminEntityModalBody {
  min-width: 0;
  max-width: 100%;
  overflow-x: hidden;
}

.admin-live-studio-body {
  overflow: hidden;
}

.admin-live-studio-body .site-shell {
  height: 100vh;
  overflow: hidden;
}

.admin-live-studio-body .site-footer {
  display: none;
}

.admin-live-studio-page {
  height: calc(100vh - 73px);
  padding: 10px;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 10px;
  overflow: hidden;
}

.admin-live-studio-top {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 12px;
  padding: 8px 12px;
  border: 1px solid var(--tta-line);
  border-radius: 8px;
  background: var(--tta-surface);
  box-shadow: var(--tta-shadow);
}

.admin-live-studio-top .section-title {
  font-size: 22px;
  line-height: 1.1;
}

.admin-live-studio-top .section-copy {
  display: none;
}

.admin-live-studio-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.admin-live-studio-actions .btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 6px 10px;
}

.admin-live-studio-grid {
  height: 100%;
  min-height: 0;
  overflow: hidden;
  padding: 0;
  grid-template-columns: minmax(0, 1fr) 430px;
  gap: 12px;
}

.admin-live-studio-grid .live-left-stack,
.admin-live-studio-grid .live-right-stack {
  min-height: 0;
  overflow: hidden;
}

.admin-live-studio-grid .live-left-stack {
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 10px;
}

.admin-live-studio-grid .live-right-stack {
  position: static;
  height: 100%;
}

.admin-live-studio-grid .live-player-card {
  overflow: hidden;
  min-height: 0;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto auto;
  padding: 12px;
}

.admin-live-scroll-card {
  overflow: hidden;
}

.admin-live-scroll-card .stream-stack {
  overflow: hidden;
  min-height: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.admin-live-studio-grid .admin-live-session-card:last-child {
  display: none;
}

.admin-live-studio-grid .chat-panel {
  height: 100%;
  min-height: 0;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
}

.admin-live-studio-grid .chat-panel-sub {
  max-height: 156px;
  overflow: hidden;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 8px 10px;
}

.admin-live-session-card {
  padding: 8px;
}

.admin-live-session-card .stream-item {
  padding: 8px;
}

.admin-live-session-card .stream-item:nth-child(n + 3) {
  display: none;
}

.admin-live-session-card .stream-item .muted-copy {
  display: none;
}

.admin-live-session-card .stream-item-top {
  gap: 8px;
}

.admin-live-studio-grid .live-player {
  border-radius: 6px;
  height: 100%;
  aspect-ratio: auto;
  min-height: 0;
}

.admin-live-studio-grid .live-player-card .section-header {
  margin-bottom: 6px !important;
}

.admin-live-studio-grid .live-player-card .h3 {
  font-size: 18px;
  line-height: 1.2;
}

.admin-live-studio-grid .live-player-card .eyebrow,
.admin-live-studio-grid .live-player-card .muted-copy {
  display: none;
}

.preview-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.75fr);
  gap: 18px;
}

.preview-main,
.preview-side {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.preview-block {
  border: 1px solid var(--tta-line);
  border-radius: 8px;
  padding: 14px;
  background: #fbfcff;
}

.preview-block h4 {
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--tta-navy);
}

.preview-list-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  border-top: 1px solid var(--tta-line);
  padding: 10px 0;
}

.preview-list-item > * {
  min-width: 0;
}

.preview-list-plain {
  grid-template-columns: minmax(0, 1fr) auto;
}

.preview-list-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.preview-kv-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.preview-kv {
  border: 1px solid var(--tta-line);
  border-radius: 8px;
  padding: 10px 12px;
  background: #fff;
}

.preview-kv span {
  display: block;
  color: var(--tta-muted);
  font-size: 12px;
  margin-bottom: 4px;
}

.preview-kv strong {
  color: var(--tta-ink);
  overflow-wrap: anywhere;
}

.preview-audio {
  display: grid;
  gap: 8px;
  min-width: 0;
  max-width: 100%;
}

.preview-audio audio,
.upload-preview-audio audio {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  display: block;
}

.audio-open-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: fit-content;
  max-width: 100%;
  color: var(--tta-red);
  font-size: 13px;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.preview-image {
  width: min(100%, 220px);
  aspect-ratio: 1;
  object-fit: contain;
  border: 1px solid var(--tta-line);
  border-radius: 8px;
  background: #fff;
  padding: 12px;
}

.preview-video {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #0f1b2b;
  border-radius: 8px;
}

.video-editor-shell {
  border: 1px solid var(--tta-line);
  border-radius: 8px;
  background: #101827;
  color: #fff;
  padding: 14px;
  display: grid;
  gap: 12px;
}

.video-editor-head,
.video-editor-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.video-editor-head .eyebrow {
  color: #ffb4bd;
}

.video-editor-shell .preview-video,
.video-editor-shell .lesson-media-empty {
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.video-editor-timeline {
  position: relative;
  height: 40px;
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.14) 0 8%, transparent 8% 12%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.12) 0 34px, rgba(255, 255, 255, 0.2) 34px 36px);
  overflow: hidden;
}

.video-editor-timeline .timeline-fill {
  position: absolute;
  top: 9px;
  bottom: 9px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--tta-red), var(--tta-amber));
}

.video-editor-timeline i {
  position: relative;
  z-index: 1;
  display: inline-block;
  width: 1px;
  height: 100%;
  margin-left: 24%;
  background: rgba(255, 255, 255, 0.24);
}

.preview-json {
  max-height: 60vh;
  overflow: auto;
  background: #0f1b2b;
  color: #fff;
  border-radius: 8px;
  padding: 16px;
}

.upload-preview-audio {
  align-items: stretch;
  flex-direction: column;
}

.table-actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 1199.98px) {
  .landing-hero-grid,
  .admin-live-layout {
    grid-template-columns: 1fr;
  }

  .method-grid-landing {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 767.98px) {
  .landing-hero {
    padding-top: 34px;
  }

  .landing-snapshot {
    padding: 18px;
  }

  .method-grid-landing,
  .preview-grid,
  .preview-kv-grid {
    grid-template-columns: 1fr;
  }

  .hero-display {
    font-size: clamp(34px, 12vw, 48px);
  }

  .site-navbar > .container-page,
  .site-nav-list {
    gap: 8px;
  }
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--tta-page);
  color: var(--tta-ink);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  overflow-x: hidden;
}

a {
  text-decoration: none;
}

.site-shell {
  min-height: 100vh;
}

.container-page {
  width: min(100%, 1360px);
  padding-inline: 24px;
}

.shadow-soft {
  box-shadow: var(--tta-shadow);
}

.site-navbar {
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--tta-line);
  backdrop-filter: blur(10px);
}

.site-navbar > .container-page {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
}

.site-navbar .navbar-collapse {
  flex-basis: 100%;
  min-width: 0;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  flex: 1 1 auto;
  max-width: 100%;
  min-width: 0;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: inline-grid;
  place-items: center;
  background: linear-gradient(135deg, var(--tta-red), var(--tta-navy));
  color: #fff;
  font-size: 15px;
  font-weight: 700;
}

.brand-text {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.brand-title {
  font-size: 17px;
  line-height: 1.1;
  font-weight: 600;
  color: var(--tta-ink);
}

.brand-subtitle {
  font-size: 12px;
  line-height: 1.2;
  color: var(--tta-muted);
  font-weight: 500;
  overflow-wrap: anywhere;
}

.navbar-toggler-clean {
  border-color: var(--tta-line);
  box-shadow: none !important;
}

.site-nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: flex-end;
  margin-left: auto;
  padding-block: 12px;
  width: 100%;
}

.site-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  max-width: 100%;
  padding: 10px 14px !important;
  border-radius: 999px;
  color: var(--tta-muted);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  flex-shrink: 1;
  transition: background-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.site-nav-link:hover,
.site-nav-link.active {
  background: #eef3fb;
  color: var(--tta-navy);
}

.site-nav-icon {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  display: inline-grid;
  place-items: center;
  background: #f1f5fb;
  color: var(--tta-navy);
  flex: 0 0 auto;
}

.site-nav-link.active .site-nav-icon,
.site-nav-link:hover .site-nav-icon {
  background: var(--tta-red-soft);
  color: var(--tta-red);
}

.site-nav-label {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (min-width: 1200px) {
  .site-navbar > .container-page {
    flex-wrap: nowrap;
  }

  .site-navbar .navbar-collapse {
    flex-basis: auto;
    flex-grow: 0;
  }

  .site-nav-list {
    width: auto;
    padding-block: 0;
    flex-wrap: nowrap;
  }
}

.page-section {
  padding: 40px 0;
}

.section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--tta-red);
  font-size: 13px;
  font-weight: 600;
}

.section-title {
  margin: 0;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.02;
  font-weight: 700;
  color: var(--tta-ink);
}

.section-copy {
  margin: 0;
  color: var(--tta-muted);
  font-size: 16px;
  max-width: 760px;
}

.hero-shell {
  padding: 36px 0 20px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 24px;
}

.surface-card {
  background: var(--tta-surface);
  border: 1px solid var(--tta-line);
  border-radius: var(--tta-radius);
  box-shadow: var(--tta-shadow);
}

.hero-panel {
  padding: 36px;
  background:
    linear-gradient(155deg, rgba(198, 40, 57, 0.08), transparent 45%),
    linear-gradient(180deg, rgba(22, 50, 79, 0.03), rgba(22, 50, 79, 0.01)),
    var(--tta-surface);
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.hero-display {
  margin: 0 0 16px;
  font-size: clamp(40px, 5vw, 66px);
  line-height: 0.98;
  font-weight: 700;
  letter-spacing: 0;
}

.hero-copy {
  margin: 0 0 22px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--tta-muted);
  max-width: 720px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-side-cards {
  display: grid;
  gap: 16px;
}

.info-stack {
  padding: 22px;
}

.info-stack h3,
.stat-card h3,
.lesson-card h3,
.section-card h3 {
  margin: 0 0 8px;
  font-size: 19px;
  line-height: 1.3;
  font-weight: 650;
}

.info-stack p,
.stat-card p,
.lesson-card p,
.section-card p,
.muted-copy {
  margin: 0;
  color: var(--tta-muted);
  line-height: 1.6;
}

.level-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.level-a0 { background: #eef3fb; color: #355b7d; }
.level-a1 { background: #fbe5e8; color: #a11c2a; }
.level-a2 { background: #def3f1; color: #0d6763; }
.level-b1 { background: #fdf0df; color: #a35e13; }
.level-b2 { background: #ddf3ee; color: #11776f; }
.level-c1 { background: #e3eef6; color: #355f7c; }
.level-c2 { background: #e8edf5; color: #213851; }

.btn-tta {
  --bs-btn-bg: var(--tta-red);
  --bs-btn-border-color: var(--tta-red);
  --bs-btn-hover-bg: #b11e31;
  --bs-btn-hover-border-color: #b11e31;
  --bs-btn-color: #fff;
  --bs-btn-hover-color: #fff;
  font-weight: 600;
}

.btn-outline-tta {
  --bs-btn-color: var(--tta-red);
  --bs-btn-border-color: var(--tta-red);
  --bs-btn-hover-bg: var(--tta-red);
  --bs-btn-hover-border-color: var(--tta-red);
  --bs-btn-hover-color: #fff;
  font-weight: 600;
}

.section-card,
.lesson-card,
.stream-card,
.admin-card,
.table-shell,
.live-player-card,
.chat-panel,
.sidebar-card {
  background: var(--tta-surface);
  border: 1px solid var(--tta-line);
  border-radius: var(--tta-radius);
  box-shadow: var(--tta-shadow);
}

.section-card,
.lesson-card,
.sidebar-card,
.stream-card {
  padding: 22px;
}

.certificate-hero {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 26px;
  border: 1px solid var(--tta-line);
  border-radius: var(--tta-radius);
  background:
    linear-gradient(135deg, rgba(185, 28, 43, 0.08), rgba(8, 117, 111, 0.08)),
    #fff;
}

.certificate-hero h2 {
  margin: 8px 0;
  color: var(--tta-ink);
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.04;
  font-weight: 800;
}

.certificate-hero p {
  max-width: 720px;
  margin: 0 0 14px;
  color: var(--tta-muted);
  font-size: 17px;
}

.certificate-score {
  display: grid;
  place-items: center;
  min-width: 132px;
  min-height: 132px;
  border-radius: 50%;
  color: #fff;
  background: var(--tta-navy);
}

.certificate-score span {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.78;
}

.certificate-score strong {
  font-size: 42px;
  line-height: 1;
}

.certificate-qr-card {
  display: grid;
  gap: 10px;
  justify-items: center;
  text-align: center;
  padding: 18px;
  border: 1px solid var(--tta-line);
  border-radius: var(--tta-radius);
  background: #fff;
}

.certificate-qr-card img {
  width: min(220px, 100%);
  height: auto;
  border-radius: 8px;
}

.certificate-qr-card strong {
  color: var(--tta-ink);
  overflow-wrap: anywhere;
}

.certificate-qr-card span,
.certificate-link-text {
  overflow-wrap: anywhere;
}

.certificate-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.method-grid,
.level-grid,
.lesson-grid-compact,
.drill-grid,
.object-grid {
  display: grid;
  gap: 16px;
}

.method-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.level-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.lesson-grid-compact,
.drill-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.stat-card {
  padding: 20px;
}

.stat-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.stat-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: inline-grid;
  place-items: center;
  background: #eef3fb;
  color: var(--tta-navy);
  font-size: 18px;
}

.stat-value {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1;
  font-weight: 700;
  color: var(--tta-ink);
}

.method-step-index {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  display: inline-grid;
  place-items: center;
  background: #edf2f9;
  color: var(--tta-navy);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 14px;
}

.badge-soft {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #f2f6fb;
  border: 1px solid var(--tta-line);
  border-radius: 999px;
  padding: 7px 12px;
  color: var(--tta-muted);
  font-size: 12px;
  font-weight: 600;
}

.lesson-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.search-input-lg {
  min-height: 52px;
  border-radius: 12px;
}

.lesson-card-link {
  display: block;
  color: inherit;
  height: 100%;
}

.lesson-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 12px;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.audio-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 38px;
  max-width: 100%;
  border-radius: 999px;
  padding: 0 14px;
  background: #eef3fb;
  color: var(--tta-navy);
  font-size: 13px;
  font-weight: 600;
  border: 0;
  flex-shrink: 0;
  transition: background-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}

a.audio-chip {
  text-decoration: none;
}

.audio-chip.is-playing {
  background: var(--tta-red-soft);
  color: var(--tta-red);
  box-shadow: inset 0 0 0 1px rgba(198, 40, 57, 0.2);
}

.audio-chip[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
}

.object-tile {
  border: 1px solid var(--tta-line);
  border-radius: 8px;
  background: var(--tta-surface-soft);
  padding: 16px;
  height: 100%;
}

.object-top {
  display: flex;
  gap: 14px;
  align-items: start;
  flex-wrap: wrap;
}

.object-thumb {
  width: 72px;
  height: 72px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--tta-line);
  object-fit: contain;
  padding: 10px;
}

.dialogue-list,
.quiz-stack,
.drill-stack,
.related-stack,
.participant-stack,
.stream-stack {
  display: grid;
  gap: 12px;
}

.dialogue-item,
.quiz-item,
.drill-item,
.related-item,
.participant-item,
.stream-item {
  border: 1px solid var(--tta-line);
  border-radius: 8px;
  background: #fff;
  padding: 14px 16px;
}

.dialogue-top,
.quiz-top,
.stream-item-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
  flex-wrap: wrap;
}

.lesson-page-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(320px, 0.85fr);
  gap: 24px;
  padding: 28px 0 40px;
}

.lesson-hero-card {
  padding: 28px;
}

.lesson-hero-title {
  margin: 0 0 12px;
  font-size: clamp(34px, 4vw, 50px);
  line-height: 1.02;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.lesson-summary {
  margin: 0;
  font-size: 17px;
  line-height: 1.7;
  color: var(--tta-muted);
}

.lesson-media {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  overflow: hidden;
  background: #0f1b2b;
}

.lesson-media video,
.lesson-media iframe {
  width: 100%;
  height: 100%;
  display: block;
}

.lesson-media-empty {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  background: #eef3fb;
  border: 1px dashed var(--tta-line);
  display: grid;
  place-items: center;
  color: var(--tta-muted);
  text-align: center;
  padding: 24px;
}

.info-list {
  display: grid;
  gap: 14px;
}

.info-list dt {
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--tta-navy);
}

.info-list dd {
  margin: 0;
  color: var(--tta-muted);
}

.method-list {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 8px;
  color: var(--tta-muted);
}

.task-type-badge {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  background: #eff4fb;
  color: var(--tta-navy);
  font-size: 12px;
  font-weight: 600;
}

.task-option-list,
.pair-grid {
  display: grid;
  gap: 10px;
}

.pair-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.muted-note {
  color: var(--tta-muted);
  font-size: 13px;
}

.site-footer {
  margin-top: 48px;
  padding: 32px 0 40px;
  border-top: 1px solid var(--tta-line);
  background: #fff;
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.footer-logo-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-title {
  font-size: 16px;
  font-weight: 650;
}

.footer-copy {
  color: var(--tta-muted);
  font-size: 14px;
}

.footer-stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--tta-line);
  border-radius: 999px;
  color: var(--tta-muted);
  background: var(--tta-surface-soft);
  font-size: 13px;
  font-weight: 600;
}

.modal-eyebrow {
  font-size: 12px;
  font-weight: 700;
  color: var(--tta-red);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.live-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(340px, 0.85fr);
  gap: 24px;
  padding: 28px 0 40px;
}

.live-left-stack,
.live-right-stack {
  display: grid;
  gap: 18px;
}

.live-player-card {
  padding: 20px;
}

.live-player {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  overflow: hidden;
  background: #0f1b2b;
}

.live-player video,
.live-player iframe {
  width: 100%;
  height: 100%;
  display: block;
}

.live-player .webrtc-video {
  object-fit: contain;
  background: #0f1b2b;
}

.webrtc-audio-stage {
  min-height: 100%;
  display: grid;
  place-items: center;
  gap: 14px;
  padding: 24px;
  color: #f8fafc;
  text-align: center;
  background: #0f1b2b;
}

.webrtc-audio-stage > div {
  display: grid;
  gap: 4px;
}

.webrtc-audio-stage span {
  color: #cbd5e1;
  font-size: 14px;
}

.webrtc-audio-stage audio {
  width: min(420px, 100%);
}

.webrtc-audio-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #b91c2b;
  color: #fff;
  font-size: 34px;
}

.webrtc-card {
  border: 1px solid #cfe3e0;
  background: #f3fbfa;
  border-radius: 8px;
  padding: 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.webrtc-status-line {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  font-size: 13px;
}

.webrtc-status-line span {
  color: var(--tta-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 360px;
}

.webrtc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.webrtc-actions .btn,
.admin-toolbar .btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.webrtc-actions .btn {
  min-height: 32px;
  padding: 5px 9px;
}

.chat-panel {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  min-height: 780px;
  overflow: hidden;
}

.live-right-stack {
  position: sticky;
  top: 92px;
  align-self: start;
}

.chat-panel-head,
.chat-panel-sub,
.chat-panel-foot {
  padding: 12px;
}

.chat-panel-head {
  border-bottom: 1px solid var(--tta-line);
}

.chat-panel-sub {
  border-bottom: 1px solid var(--tta-line);
  background: #f9fbfe;
  display: grid;
  gap: 16px;
}

.chat-feed {
  overflow-y: auto;
  padding: 12px;
  background: #fbfcff;
  display: grid;
  align-content: start;
  gap: 8px;
  min-height: 0;
}

.chat-item {
  border: 1px solid var(--tta-line);
  border-radius: 8px;
  background: #fff;
  padding: 9px 11px;
}

.chat-item.self {
  border-color: #f3cad0;
  background: #fff8f8;
}

.chat-item-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
  color: var(--tta-muted);
  font-size: 12px;
}

.chat-item-body {
  white-space: pre-wrap;
  word-break: break-word;
}

.sticker-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.sticker-btn {
  min-height: 54px;
  border: 1px solid var(--tta-line);
  border-radius: 8px;
  background: #fff;
  font-size: 26px;
}

.poll-card {
  border: 1px solid #cfe3e0;
  border-radius: 8px;
  background: #f3fbfa;
  padding: 8px;
}

.poll-option {
  width: 100%;
  text-align: left;
  border: 1px solid var(--tta-line);
  border-radius: 8px;
  background: #fff;
  padding: 10px 12px;
}

.participant-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 4px 0;
}

.participant-name {
  font-weight: 600;
}

.speaker-request-list {
  border-top: 1px solid var(--tta-line);
  padding-top: 8px;
}

.speaker-request-item {
  border: 1px solid var(--tta-line);
  border-radius: 8px;
  background: #fff;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.live-user-strip,
.live-compact-panel {
  border: 1px solid var(--tta-line);
  border-radius: 8px;
  background: #fff;
}

.live-user-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 7px 9px;
  font-size: 13px;
}

.live-user-strip strong {
  color: var(--tta-red);
}

.live-compact-panel {
  padding: 0;
}

.live-compact-panel summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  font-size: 13px;
  font-weight: 700;
}

.live-compact-panel summary::-webkit-details-marker {
  display: none;
}

.live-compact-panel[open] {
  padding-bottom: 8px;
}

.live-compact-list,
.live-active-speaker {
  padding: 0 10px;
}

.live-compact-list {
  max-height: 120px;
  overflow-y: auto;
}

.live-active-speaker {
  display: flex;
  gap: 8px;
  align-items: center;
  color: #0f766e;
  font-size: 13px;
  margin-bottom: 6px;
}

.admin-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: calc(100vh - 73px);
}

.admin-sidebar {
  background: var(--tta-navy);
  color: #fff;
  padding: 24px 18px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  position: sticky;
  top: 73px;
  align-self: start;
  height: calc(100vh - 73px);
  overflow-y: auto;
}

.admin-sidebar .brand-subtitle {
  color: rgba(255, 255, 255, 0.72);
}

.admin-nav {
  margin-top: 28px;
  display: grid;
  gap: 8px;
}

.admin-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 46px;
  padding: 0 14px;
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
  font-weight: 500;
}

.admin-nav-link:hover,
.admin-nav-link.active {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.admin-main {
  padding: 22px;
}

.admin-head {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.admin-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}

.admin-toolbar,
.filter-toolbar,
.pagination-bar,
.table-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.filter-toolbar {
  padding: 16px 18px;
  border-bottom: 1px solid var(--tta-line);
  background: #fafcff;
}

.table-shell {
  overflow: hidden;
}

.table-wrap {
  overflow-x: auto;
}

.table-sticky {
  margin: 0;
}

.table-sticky thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: #f8fbff;
  vertical-align: middle;
  white-space: nowrap;
  font-size: 13px;
}

.table-sticky td,
.table-sticky th {
  border-color: var(--tta-line);
  vertical-align: middle;
}

.table-title {
  font-weight: 600;
  color: var(--tta-ink);
}

.row-meta {
  color: var(--tta-muted);
  font-size: 12px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.status-published,
.status-live,
.status-ready,
.status-active {
  background: #e4f6f1;
  color: #127463;
}

.status-draft,
.status-scheduled {
  background: #eef3fb;
  color: #355b7d;
}

.status-missing,
.status-ended,
.status-inactive {
  background: #fcebed;
  color: #b12a39;
}

.table-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.table-actions .btn {
  white-space: nowrap;
}

.empty-state {
  padding: 28px;
  text-align: center;
  color: var(--tta-muted);
}

.empty-state-card {
  min-height: 220px;
  display: grid;
  align-content: center;
  gap: 10px;
  grid-column: 1 / -1;
}

.empty-state-card h3 {
  margin: 0;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
}

.form-grid-item {
  grid-column: span var(--field-span, 12);
  min-width: 0;
}

.form-field {
  display: grid;
  gap: 8px;
}

.form-field .form-control,
.form-field .form-select,
.upload-card .form-control {
  width: 100%;
  min-height: 46px;
  border-radius: 8px;
}

.form-field textarea.form-control {
  min-height: 118px;
  resize: vertical;
}

.trim-form-grid .form-field textarea.form-control,
.trim-form-grid .form-field .form-control {
  min-height: 44px;
}

.form-field label {
  font-size: 13px;
  font-weight: 700;
  color: var(--tta-navy);
}

.field-error {
  color: #b12a39;
  font-size: 12px;
}

.upload-card {
  border: 1px dashed var(--tta-line);
  border-radius: 8px;
  padding: 14px;
  background: #fbfcff;
}

.upload-preview {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  flex-wrap: wrap;
  min-width: 0;
}

.upload-preview img {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border: 1px solid var(--tta-line);
  border-radius: 8px;
}

.audio-audit-grid {
  display: grid;
  gap: 8px;
  color: var(--tta-muted);
  font-size: 13px;
}

.login-page {
  min-height: calc(100vh - 73px);
  display: grid;
  place-items: center;
  padding: 30px 0 50px;
}

.login-card {
  width: min(100%, 460px);
  padding: 28px;
}

@media (max-width: 1199.98px) {
  .hero-grid,
  .lesson-page-grid,
  .live-layout,
  .admin-shell {
    grid-template-columns: 1fr;
  }

  .method-grid,
  .level-grid,
  .lesson-grid-compact,
  .drill-grid,
  .admin-stat-grid,
  .stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .admin-sidebar {
    padding-bottom: 12px;
    position: static;
    height: auto;
  }

  .live-right-stack {
    position: static;
  }

  .brand-subtitle {
    display: none;
  }

  .form-grid-item {
    grid-column: 1 / -1;
  }
}

@media print {
  .site-navbar,
  .site-footer,
  .certificate-search,
  .certificate-actions {
    display: none !important;
  }

  .page-section,
  .lesson-page-grid {
    padding: 0 !important;
  }

  .container-page {
    max-width: none;
    padding: 0;
  }

  .certificate-print-card {
    border: 0;
    box-shadow: none;
  }

  .certificate-hero,
  .certificate-qr-card,
  .preview-kv {
    break-inside: avoid;
  }
}

@media (max-width: 767.98px) {
  .container-page {
    padding-inline: 16px;
  }

  .hero-panel,
  .section-card,
  .lesson-card,
  .stream-card,
  .sidebar-card,
  .live-player-card,
  .chat-panel-head,
  .chat-panel-sub,
  .chat-panel-foot,
  .login-card {
    padding: 18px;
  }

  .method-grid,
  .level-grid,
  .lesson-grid-compact,
  .drill-grid,
  .admin-stat-grid,
  .pair-grid,
  .stat-grid {
    grid-template-columns: 1fr;
  }

  .site-nav-list {
    padding-top: 12px;
    width: 100%;
  }

  .site-nav-link {
    width: 100%;
    justify-content: flex-start;
    border-radius: 14px;
  }

  .brand-lockup {
    max-width: calc(100% - 64px);
  }

  .chat-panel {
    min-height: 640px;
  }

  .live-right-stack {
    position: static;
  }

  .admin-modal-dialog .modal-body,
  .admin-live-modal-dialog .modal-body {
    padding: 16px;
  }

  .form-grid-item {
    grid-column: 1 / -1;
  }

  .video-editor-actions .btn {
    width: 100%;
  }

  .certificate-hero {
    padding: 18px;
  }

  .certificate-score {
    min-width: 108px;
    min-height: 108px;
  }
}

/* Global EDU premium redesign pass */
:root {
  --tta-red: #2563eb;
  --tta-red-soft: #eaf2ff;
  --tta-navy: #0f172a;
  --tta-teal: #0f766e;
  --tta-amber: #f59e0b;
  --tta-ink: #172033;
  --tta-muted: #64748b;
  --tta-line: #dbe7f5;
  --tta-surface: #ffffff;
  --tta-surface-soft: #f7fbff;
  --tta-page: #f4f8fd;
  --tta-shadow: 0 18px 44px rgba(15, 23, 42, 0.08);
}

body {
  color: var(--tta-ink);
  background:
    linear-gradient(180deg, #f7fbff 0%, #eef6ff 42%, #f8fafc 100%);
}

.site-navbar {
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(219, 231, 245, 0.92);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
}

.brand-mark,
.stat-icon,
.admin-brand-mark {
  background: linear-gradient(145deg, #2563eb, #0f766e);
  color: #fff;
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.2);
}

.site-nav-link,
.admin-nav-link {
  color: #334155;
  border-radius: 8px;
  transition: background-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.site-nav-link:hover,
.admin-nav-link:hover {
  background: #eef6ff;
  color: #1d4ed8;
  transform: translateY(-1px);
}

.site-nav-link.active,
.admin-nav-link.active {
  background: linear-gradient(135deg, #2563eb, #0f766e);
  color: #fff;
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.18);
}

.hero-panel,
.section-card,
.lesson-card,
.stream-card,
.sidebar-card,
.surface-card,
.table-shell,
.login-card,
.certificate-print-card,
.live-player-card,
.chat-panel,
.admin-sidebar,
.stat-card {
  border: 1px solid rgba(219, 231, 245, 0.92);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--tta-shadow);
}

.hero-panel,
.landing-snapshot,
.admin-head {
  background:
    linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(15, 118, 110, 0.08)),
    #fff;
}

.section-title,
.table-title,
.admin-head h1 {
  color: #0f172a;
  letter-spacing: 0;
}

.section-copy,
.muted-copy,
.row-meta {
  color: #64748b;
}

.eyebrow,
.badge-soft {
  background: #eef6ff;
  color: #1d4ed8;
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-radius: 8px;
}

.btn-tta,
.btn-outline-tta:hover,
.audio-chip:hover {
  background: linear-gradient(135deg, #2563eb, #0f766e);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 14px 28px rgba(37, 99, 235, 0.2);
}

.btn-outline-tta {
  color: #1d4ed8;
  border-color: rgba(37, 99, 235, 0.26);
  background: #fff;
}

.btn,
.form-control,
.form-select,
.audio-chip,
.status-pill,
.preview-kv,
.upload-card {
  border-radius: 8px;
}

.form-control:focus,
.form-select:focus {
  border-color: #60a5fa;
  box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.13);
}

.filter-toolbar,
.pagination-bar,
.table thead th {
  background: #f8fbff;
}

.table-hover tbody tr:hover {
  background: #f2f8ff;
}

.status-published,
.status-ready,
.status-active,
.status-live {
  background: #dcfce7;
  color: #047857;
}

.status-draft,
.status-scheduled,
.status-queued {
  background: #fffbeb;
  color: #b45309;
}

.status-missing,
.status-ended,
.status-inactive {
  background: #fff1f2;
  color: #be123c;
}

.admin-shell {
  align-items: start;
}

.admin-sidebar {
  background:
    linear-gradient(180deg, rgba(37, 99, 235, 0.08), rgba(15, 118, 110, 0.05)),
    #fff;
}

.admin-stat-grid .stat-card,
.stat-card {
  overflow: hidden;
  position: relative;
}

.stat-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 3px;
  background: linear-gradient(90deg, #2563eb, #0f766e, #f59e0b);
}

.audio-chip {
  background: #fff;
  border: 1px solid #dbe7f5;
  color: #172033;
}

.audio-chip i {
  color: #2563eb;
}

.audio-chip:hover i {
  color: #fff;
}

.certificate-hero,
.video-editor-shell {
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(245, 158, 11, 0.08)),
    #fff;
}

/* Premium global SaaS admin dashboard */
body[data-page="admin"] {
  --admin-bg: #f4f8fd;
  --admin-panel: #ffffff;
  --admin-panel-soft: #f8fbff;
  --admin-text: #111827;
  --admin-muted: #64748b;
  --admin-border: #dbe7f5;
  --admin-blue: #2563eb;
  --admin-sky: #eaf2ff;
  --admin-teal: #0f766e;
  --admin-amber: #f59e0b;
  --admin-danger: #e11d48;
  --admin-shadow: 0 18px 44px rgba(15, 23, 42, 0.08);
  min-height: 100vh;
  background:
    linear-gradient(180deg, #f8fbff 0%, #eef6ff 46%, #f8fafc 100%);
  color: var(--admin-text);
}

body[data-page="admin"].admin-dark {
  --admin-bg: #0b1220;
  --admin-panel: #101827;
  --admin-panel-soft: #121d31;
  --admin-text: #e5edf7;
  --admin-muted: #91a4bd;
  --admin-border: rgba(148, 163, 184, 0.2);
  --admin-sky: rgba(37, 99, 235, 0.16);
  --admin-shadow: 0 22px 50px rgba(0, 0, 0, 0.34);
  background: #0b1220;
}

body[data-page="admin"] .site-navbar,
body[data-page="admin"] .site-footer {
  display: none;
}

body[data-page="admin"] .site-shell {
  min-height: 100vh;
  background: var(--admin-bg);
}

body[data-page="admin"] .admin-shell {
  grid-template-columns: 292px minmax(0, 1fr);
  min-height: 100vh;
  align-items: stretch;
}

body[data-page="admin"] .admin-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 20px 14px;
  overflow-y: auto;
  background:
    linear-gradient(180deg, rgba(37, 99, 235, 0.08), rgba(15, 118, 110, 0.05)),
    var(--admin-panel);
  border-right: 1px solid var(--admin-border);
  color: var(--admin-text);
  box-shadow: none;
}

body[data-page="admin"].admin-dark .admin-sidebar {
  background:
    linear-gradient(180deg, rgba(37, 99, 235, 0.15), rgba(15, 118, 110, 0.08)),
    var(--admin-panel);
}

.admin-brand-lockup {
  max-width: none;
  padding: 10px 10px 18px;
  border-bottom: 1px solid var(--admin-border);
}

.admin-brand-lockup .brand-title,
.admin-sidebar .brand-title {
  color: var(--admin-text);
  font-weight: 800;
}

.admin-sidebar .brand-subtitle {
  color: var(--admin-muted);
}

.admin-brand-mark {
  background: linear-gradient(145deg, #2563eb, #0f766e);
  color: #fff;
  box-shadow: 0 16px 34px rgba(37, 99, 235, 0.24);
}

body[data-page="admin"] .admin-nav {
  margin-top: 16px;
  gap: 14px;
}

.admin-nav-group {
  display: grid;
  gap: 6px;
}

.admin-nav-label {
  padding: 0 12px;
  color: var(--admin-muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

body[data-page="admin"] .admin-nav-link {
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid transparent;
  color: var(--admin-muted);
  border-radius: 8px;
}

body[data-page="admin"] .admin-nav-link i {
  width: 18px;
  color: #2563eb;
}

body[data-page="admin"] .admin-nav-link:hover {
  background: var(--admin-sky);
  color: var(--admin-blue);
  border-color: rgba(37, 99, 235, 0.12);
  transform: none;
}

body[data-page="admin"] .admin-nav-link.active {
  background: linear-gradient(135deg, #2563eb, #0f766e);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 16px 30px rgba(37, 99, 235, 0.2);
}

body[data-page="admin"] .admin-nav-link.active i {
  color: #fff;
}

body[data-page="admin"] .admin-main {
  min-width: 0;
  padding: 18px 22px 30px;
}

.admin-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(180px, 0.42fr) minmax(240px, 1fr) auto;
  gap: 14px;
  align-items: center;
  margin: -18px -22px 18px;
  padding: 14px 22px;
  background: color-mix(in srgb, var(--admin-panel) 88%, transparent);
  border-bottom: 1px solid var(--admin-border);
  backdrop-filter: blur(18px);
}

.admin-topbar-kicker {
  color: var(--admin-muted);
  font-size: 12px;
  font-weight: 700;
}

.admin-search {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  background: var(--admin-panel);
  color: var(--admin-muted);
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.04);
}

.admin-search input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--admin-text);
  font: inherit;
}

.admin-search input::placeholder {
  color: var(--admin-muted);
}

.admin-icon-button {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  background: var(--admin-panel);
  color: var(--admin-blue);
}

.admin-hero,
.admin-head {
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(15, 118, 110, 0.08)),
    var(--admin-panel);
  box-shadow: var(--admin-shadow);
}

.admin-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px;
  align-items: stretch;
  padding: 24px;
  margin-bottom: 18px;
}

.admin-hero .section-title {
  margin-top: 8px;
  color: var(--admin-text);
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1;
}

.admin-hero .section-copy,
body[data-page="admin"] .section-copy,
body[data-page="admin"] .muted-copy,
body[data-page="admin"] .row-meta {
  color: var(--admin-muted);
}

.admin-hero-actions,
.admin-quick-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.admin-hero-panel {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 14px;
  min-height: 210px;
  padding: 16px;
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(248, 251, 255, 0.9)),
    var(--admin-panel);
}

.admin-dark .admin-hero-panel {
  background: var(--admin-panel-soft);
}

.admin-hero-panel-head,
.admin-hero-panel-foot,
.stat-top,
.section-header,
.admin-screen-top,
.admin-progress-row > div:first-child {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.admin-hero-panel-head span,
.admin-hero-panel-foot span {
  color: var(--admin-muted);
  font-size: 12px;
  font-weight: 700;
}

.admin-orbit-chart {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  align-items: end;
  gap: 10px;
  min-height: 118px;
  padding-top: 20px;
}

.admin-orbit-chart span {
  display: block;
  border-radius: 8px 8px 0 0;
  background: linear-gradient(180deg, #2563eb, #38bdf8);
}

body[data-page="admin"] .admin-stat-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.admin-module-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.admin-metric-card {
  min-height: 146px;
  padding: 18px;
  background: var(--admin-panel);
  border-color: var(--admin-border);
}

.admin-metric-card .stat-value {
  margin-top: 18px;
  color: var(--admin-text);
}

.admin-metric-card.tone-green .stat-icon {
  background: linear-gradient(145deg, #0f766e, #22c55e);
}

.admin-metric-card.tone-amber .stat-icon {
  background: linear-gradient(145deg, #f59e0b, #ef4444);
}

.admin-metric-card.tone-purple .stat-icon {
  background: linear-gradient(145deg, #6366f1, #0ea5e9);
}

.admin-dashboard-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(300px, 0.58fr);
  gap: 18px;
}

.admin-dashboard-automation,
.admin-automation-panel,
.admin-automation-side {
  display: grid;
  align-content: start;
  gap: 14px;
}

.admin-automation-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.7fr);
  gap: 18px;
  margin-bottom: 18px;
}

.admin-automation-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.admin-automation-card,
.admin-snapshot-item,
.admin-automation-empty {
  padding: 16px;
  border: 1px solid var(--admin-border);
  border-radius: 14px;
  background: var(--admin-panel-soft);
}

.admin-automation-card {
  display: grid;
  gap: 10px;
}

.admin-automation-card-head,
.admin-snapshot-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.admin-automation-card p,
.admin-automation-empty span {
  margin: 0;
  color: var(--admin-muted);
}

.admin-automation-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.admin-automation-empty {
  display: grid;
  gap: 8px;
  text-align: left;
}

.admin-automation-empty i {
  font-size: 20px;
  color: var(--admin-blue);
}

.admin-snapshot-grid {
  display: grid;
  gap: 10px;
}

.admin-snapshot-item span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--admin-muted);
  font-size: 14px;
}

.admin-progress-list {
  display: grid;
  gap: 10px;
}

body[data-page="admin"] .section-card,
body[data-page="admin"] .table-shell,
body[data-page="admin"] .stat-card,
body[data-page="admin"] .modal-content,
body[data-page="admin"] .upload-card {
  background: var(--admin-panel);
  border-color: var(--admin-border);
  box-shadow: var(--admin-shadow);
}

.dashboard-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.admin-screen-tile {
  display: grid;
  gap: 10px;
  min-height: 154px;
  padding: 14px;
  text-align: left;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  background: var(--admin-panel-soft);
  color: var(--admin-text);
}

.admin-screen-tile:hover {
  border-color: rgba(37, 99, 235, 0.42);
  box-shadow: 0 16px 34px rgba(37, 99, 235, 0.12);
}

.admin-screen-tile:disabled {
  cursor: not-allowed;
  opacity: 0.56;
}

.admin-screen-top i {
  width: 32px;
  height: 32px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  background: #eaf2ff;
  color: #2563eb;
}

.admin-screen-top span {
  height: 8px;
  border-radius: 999px;
  background: var(--admin-border);
}

.admin-screen-top span:nth-child(2) {
  width: 34%;
}

.admin-screen-top span:nth-child(3) {
  width: 20%;
}

.admin-screen-tile small {
  color: var(--admin-muted);
}

.admin-screen-bars {
  display: grid;
  gap: 6px;
  margin-top: auto;
}

.admin-screen-bars span {
  height: 7px;
  border-radius: 999px;
  background: linear-gradient(90deg, #2563eb, #38bdf8);
}

.admin-insight-card {
  display: grid;
  align-content: start;
  gap: 14px;
}

.admin-progress-row {
  display: grid;
  gap: 9px;
  padding: 12px;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  background: var(--admin-panel-soft);
}

.admin-progress-row span {
  color: var(--admin-muted);
  font-size: 12px;
}

.admin-progress {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.2);
}

.admin-progress span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #2563eb, #0f766e);
}

.admin-module-head {
  padding: 20px;
}

body[data-page="admin"] .filter-toolbar {
  gap: 12px;
  padding: 14px;
  background: var(--admin-panel-soft);
  border-bottom-color: var(--admin-border);
}

.filter-toolbar-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  color: var(--admin-blue);
  background: var(--admin-panel);
  font-weight: 700;
}

.filter-field {
  min-width: min(240px, 100%);
}

body[data-page="admin"] .form-control,
body[data-page="admin"] .form-select {
  background-color: var(--admin-panel);
  border-color: var(--admin-border);
  color: var(--admin-text);
}

body[data-page="admin"] .table {
  color: var(--admin-text);
}

body[data-page="admin"] .table-sticky thead th,
body[data-page="admin"] .pagination-bar,
body[data-page="admin"] .table thead th {
  background: var(--admin-panel-soft);
  color: var(--admin-muted);
  border-color: var(--admin-border);
}

body[data-page="admin"] .table-sticky td,
body[data-page="admin"] .table-sticky th {
  border-color: var(--admin-border);
}

body[data-page="admin"] .table-hover tbody tr:hover {
  background: var(--admin-sky);
}

body[data-page="admin"] .table-title,
body[data-page="admin"] .section-title,
body[data-page="admin"] .admin-head h1,
body[data-page="admin"] .section-card h3 {
  color: var(--admin-text);
}

body[data-page="admin"] .btn,
body[data-page="admin"] .audio-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

body[data-page="admin"] .audio-chip {
  min-height: 40px;
  border-color: var(--admin-border);
  background: var(--admin-panel);
  color: var(--admin-text);
}

body[data-page="admin"] .badge-soft,
body[data-page="admin"] .eyebrow {
  background: var(--admin-sky);
  color: var(--admin-blue);
  border-color: rgba(37, 99, 235, 0.16);
}

body[data-page="admin"] .status-pill {
  min-height: 28px;
  border: 1px solid transparent;
}

body[data-page="admin"] .status-published,
body[data-page="admin"] .status-ready,
body[data-page="admin"] .status-active,
body[data-page="admin"] .status-live {
  background: rgba(15, 118, 110, 0.12);
  color: #0f766e;
  border-color: rgba(15, 118, 110, 0.18);
}

body[data-page="admin"] .status-draft,
body[data-page="admin"] .status-scheduled,
body[data-page="admin"] .status-queued {
  background: rgba(245, 158, 11, 0.13);
  color: #b45309;
  border-color: rgba(245, 158, 11, 0.18);
}

body[data-page="admin"] .status-missing,
body[data-page="admin"] .status-ended,
body[data-page="admin"] .status-inactive {
  background: rgba(225, 29, 72, 0.1);
  color: var(--admin-danger);
  border-color: rgba(225, 29, 72, 0.16);
}

body[data-page="admin"] .admin-modal-dialog .modal-header,
body[data-page="admin"] .admin-modal-dialog .modal-footer {
  flex-shrink: 0;
}

body[data-page="admin"] .admin-modal-dialog .modal-footer {
  flex-wrap: wrap;
  gap: 10px;
}

body[data-page="admin"] .admin-modal-dialog .preview-grid,
body[data-page="admin"] .admin-modal-dialog .preview-list-item,
body[data-page="admin"] .admin-modal-dialog .preview-list-plain {
  grid-template-columns: minmax(0, 1fr);
}

body[data-page="admin"] .admin-modal-dialog .preview-kv-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

body[data-page="admin"] .admin-modal-dialog .preview-block,
body[data-page="admin"] .admin-modal-dialog .row-meta,
body[data-page="admin"] .admin-modal-dialog p,
body[data-page="admin"] .admin-modal-dialog strong,
body[data-page="admin"] .admin-modal-dialog span {
  overflow-wrap: anywhere;
}

body[data-page="admin"] .admin-modal-dialog .form-grid {
  gap: 14px;
}

body[data-page="admin"] .admin-modal-dialog .form-field textarea.form-control {
  min-height: 108px;
  max-height: 220px;
}

body[data-page="admin"] .admin-modal-dialog .preview-image {
  width: min(100%, 180px);
}

.admin-dark .modal-header,
.admin-dark .modal-footer,
.admin-dark .modal-body {
  border-color: var(--admin-border);
  background: var(--admin-panel);
  color: var(--admin-text);
}

.admin-dark .btn-close {
  filter: invert(1);
}

@media (max-width: 1199.98px) {
  body[data-page="admin"] .admin-shell,
  .admin-hero,
  .admin-dashboard-layout,
  .admin-automation-shell {
    grid-template-columns: 1fr;
  }

  body[data-page="admin"] .admin-sidebar {
    position: static;
    height: auto;
  }

  .admin-topbar {
    grid-template-columns: 1fr auto;
  }

  .admin-search {
    grid-column: 1 / -1;
    order: 3;
  }

  body[data-page="admin"] .admin-stat-grid,
  .admin-module-stats,
  .dashboard-preview-grid,
  .admin-automation-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 767.98px) {
  body[data-page="admin"] .admin-main {
    padding: 14px;
  }

  .admin-topbar {
    margin: -14px -14px 14px;
    padding: 12px 14px;
  }

  .admin-hero,
  .admin-module-head {
    padding: 16px;
  }

  body[data-page="admin"] .admin-stat-grid,
  .admin-module-stats,
  .dashboard-preview-grid,
  .admin-automation-grid {
    grid-template-columns: 1fr;
  }

  .filter-field,
  .filter-toolbar-title {
    width: 100%;
  }

  body[data-page="admin"] .admin-modal-dialog {
    width: calc(100vw - 16px);
    max-width: calc(100vw - 16px);
    margin: 8px auto;
  }

  body[data-page="admin"] .admin-modal-dialog .modal-content {
    max-height: calc(100dvh - 16px);
  }

  body[data-page="admin"] .admin-modal-dialog .preview-kv-grid {
    grid-template-columns: 1fr;
  }

  body[data-page="admin"] .admin-modal-dialog .modal-footer .btn {
    width: 100%;
  }
}

/* Final admin contrast and live-studio repair */
body[data-page="admin"]:not(.admin-dark) {
  --admin-bg: #f5f7fb;
  --admin-panel: #ffffff;
  --admin-panel-soft: #f8fafc;
  --admin-text: #0f172a;
  --admin-muted: #475569;
  --admin-border: #d5e0ee;
}

body[data-page="admin"]:not(.admin-dark) .admin-sidebar {
  background:
    linear-gradient(180deg, rgba(37, 99, 235, 0.18), rgba(15, 118, 110, 0.08)),
    #0f172a;
  color: #f8fafc;
  border-right-color: rgba(255, 255, 255, 0.08);
}

body[data-page="admin"]:not(.admin-dark) .admin-brand-lockup {
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

body[data-page="admin"]:not(.admin-dark) .admin-brand-lockup .brand-title,
body[data-page="admin"]:not(.admin-dark) .admin-sidebar .brand-title {
  color: #ffffff;
}

body[data-page="admin"]:not(.admin-dark) .admin-sidebar .brand-subtitle,
body[data-page="admin"]:not(.admin-dark) .admin-nav-label {
  color: #cbd5e1;
}

body[data-page="admin"]:not(.admin-dark) .admin-nav-link {
  color: #e2e8f0;
}

body[data-page="admin"]:not(.admin-dark) .admin-nav-link i {
  color: #93c5fd;
}

body[data-page="admin"]:not(.admin-dark) .admin-nav-link:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.12);
}

body[data-page="admin"]:not(.admin-dark) .admin-nav-link:hover i {
  color: #ffffff;
}

body[data-page="admin"]:not(.admin-dark) .admin-nav-link.active {
  background: #ffffff;
  color: #1d4ed8;
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.18);
}

body[data-page="admin"]:not(.admin-dark) .admin-nav-link.active i {
  color: #1d4ed8;
}

body[data-page="admin"] .admin-topbar,
body[data-page="admin"] .admin-hero,
body[data-page="admin"] .admin-head,
body[data-page="admin"] .section-card,
body[data-page="admin"] .table-shell,
body[data-page="admin"] .stat-card {
  color: var(--admin-text);
}

body[data-page="admin"] .table-actions .btn {
  min-height: 34px;
}

.admin-live-studio-body {
  background: #0b1220;
}

.admin-live-studio-body .admin-live-studio-page {
  height: 100vh;
  padding: 14px;
  gap: 14px;
  background:
    radial-gradient(circle at 18% 12%, rgba(37, 99, 235, 0.22), transparent 32%),
    #0b1220;
}

.admin-live-studio-body .admin-live-studio-top {
  align-items: center;
  padding: 12px 16px;
  border-color: rgba(148, 163, 184, 0.22);
  background: rgba(15, 23, 42, 0.92);
  color: #f8fafc;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.32);
}

.admin-live-studio-body .admin-live-studio-top .section-title,
.admin-live-studio-body .chat-panel h3,
.admin-live-studio-body .table-title {
  color: #f8fafc;
}

.admin-live-studio-body .admin-live-studio-top .section-copy {
  display: block;
  color: #cbd5e1;
}

.admin-live-studio-grid {
  grid-template-columns: minmax(0, 1fr) 390px;
  gap: 14px;
}

.admin-live-studio-grid .live-player-card {
  position: relative;
  padding: 14px;
  border-color: rgba(148, 163, 184, 0.22);
  background: rgba(15, 23, 42, 0.92);
  color: #f8fafc;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
}

.admin-live-studio-grid .live-player-card .eyebrow,
.admin-live-studio-grid .live-player-card .muted-copy {
  display: inline-flex;
}

.admin-live-studio-grid .live-player-card .section-header {
  margin-bottom: 10px !important;
}

.admin-live-studio-grid .live-player-card .h3 {
  color: #f8fafc;
  font-size: 20px;
}

.admin-live-studio-grid .live-player {
  min-height: 420px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.45), rgba(2, 6, 23, 0.96)),
    #020617;
}

.admin-live-studio-grid .lesson-media-empty {
  min-height: 100%;
  color: #cbd5e1;
  background: transparent;
  border-color: rgba(148, 163, 184, 0.22);
}

.admin-live-studio-grid .webrtc-panel {
  margin-top: 10px !important;
}

.admin-live-studio-grid .webrtc-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 8px;
  background: rgba(2, 6, 23, 0.58);
}

.admin-live-studio-grid .webrtc-actions {
  justify-content: flex-end;
}

.admin-live-studio-grid .webrtc-actions .btn {
  min-height: 38px;
  border-radius: 8px;
}

.admin-live-studio-grid .webrtc-status-line span,
.admin-live-studio-grid .row-meta,
.admin-live-studio-grid .muted-copy {
  color: #cbd5e1;
}

.admin-live-studio-grid .admin-live-session-card {
  display: block !important;
  border-color: rgba(148, 163, 184, 0.22);
  background: rgba(15, 23, 42, 0.82);
  color: #f8fafc;
}

.admin-live-scroll-card .stream-stack {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.admin-live-studio-grid .stream-item {
  border-color: rgba(148, 163, 184, 0.22);
  background: rgba(2, 6, 23, 0.38);
  color: #f8fafc;
}

.admin-live-studio-grid .stream-item:nth-child(n + 3),
.admin-live-studio-grid .stream-item .muted-copy {
  display: block;
}

.admin-live-studio-grid .chat-panel {
  min-height: 0;
  border-color: rgba(148, 163, 184, 0.22);
  background: rgba(15, 23, 42, 0.92);
  color: #f8fafc;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
}

.admin-live-studio-grid .chat-panel-head,
.admin-live-studio-grid .chat-panel-sub,
.admin-live-studio-grid .chat-panel-foot {
  border-color: rgba(148, 163, 184, 0.18);
  background: transparent;
}

.admin-live-studio-grid .chat-panel-sub {
  max-height: none;
  display: grid;
  gap: 10px;
}

.admin-live-studio-grid .chat-feed {
  background: rgba(2, 6, 23, 0.35);
}

.admin-live-studio-grid .chat-item,
.admin-live-studio-grid .poll-card,
.admin-live-studio-grid .speaker-request-item,
.admin-live-studio-grid .live-user-strip,
.admin-live-studio-grid .live-compact-panel,
.admin-live-studio-grid .poll-option {
  border-color: rgba(148, 163, 184, 0.2);
  background: rgba(15, 23, 42, 0.76);
  color: #f8fafc;
}

.admin-live-studio-grid .chat-item.self {
  border-color: rgba(37, 99, 235, 0.42);
  background: rgba(37, 99, 235, 0.18);
}

.admin-live-studio-grid .chat-item-head {
  color: #93c5fd;
}

.admin-live-studio-grid .chat-panel .form-control {
  background: rgba(2, 6, 23, 0.64);
  color: #f8fafc;
  border-color: rgba(148, 163, 184, 0.24);
}

.admin-live-studio-grid .chat-panel .form-control::placeholder {
  color: #94a3b8;
}

.poll-option-top {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.poll-option-top em {
  color: inherit;
  font-style: normal;
  font-size: 12px;
  opacity: 0.78;
}

.poll-option-bar {
  display: block;
  height: 7px;
  margin-top: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.22);
}

.poll-option-bar i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #2563eb, #22c55e);
}

.poll-option.is-voted {
  border-color: rgba(37, 99, 235, 0.58) !important;
}

@media (max-width: 1199.98px) {
  .admin-live-studio-grid {
    grid-template-columns: 1fr;
  }

  .admin-live-studio-grid .live-player {
    min-height: 320px;
  }
}

.admin-live-studio-body .admin-live-studio-page {
  height: calc(100dvh - 73px);
}

.public-live-studio-body .site-navbar {
  display: none;
}

.public-live-studio-body .site-shell {
  height: 100dvh;
}

.public-live-studio-body .admin-live-studio-page {
  height: 100dvh;
  padding: 12px;
}

.public-live-studio-body .admin-live-studio-grid {
  grid-template-columns: minmax(0, 1fr) 380px;
}

.public-live-studio-body .admin-live-studio-grid .live-left-stack {
  grid-template-rows: minmax(0, 1fr);
}

.public-live-studio-body .admin-live-studio-grid .admin-live-session-card {
  display: none !important;
}

.public-live-studio-body .admin-live-studio-grid .live-player-card {
  min-height: clamp(560px, calc(100dvh - 116px), 900px);
  grid-template-rows: auto auto minmax(460px, 1fr) auto;
}

.public-live-studio-body .admin-live-studio-grid .live-player {
  height: 100%;
  min-height: clamp(460px, 62dvh, 780px);
}

.public-live-studio-body .admin-live-studio-grid .live-player-card .muted-copy {
  display: none;
}

.public-live-studio-body .admin-live-studio-grid .webrtc-card {
  align-items: stretch;
}

.public-live-studio-body .admin-live-studio-grid .webrtc-actions {
  width: 100%;
  justify-content: flex-start;
}

.public-live-studio-body .admin-live-studio-grid .webrtc-actions .btn {
  min-height: 42px;
}

@media (max-width: 1199.98px) {
  .public-live-studio-body,
  .public-live-studio-body .site-shell {
    height: auto;
    min-height: 100dvh;
    overflow: auto;
  }

  .public-live-studio-body .admin-live-studio-page,
  .public-live-studio-body .admin-live-studio-grid,
  .public-live-studio-body .admin-live-studio-grid .live-left-stack,
  .public-live-studio-body .admin-live-studio-grid .live-right-stack {
    height: auto;
    overflow: visible;
  }

  .public-live-studio-body .admin-live-studio-page {
    min-height: 100dvh;
  }

  .public-live-studio-body .admin-live-studio-grid {
    grid-template-columns: 1fr;
  }

  .public-live-studio-body .admin-live-studio-grid .live-player {
    min-height: 420px;
  }

  .public-live-studio-body .admin-live-studio-grid .chat-panel {
    min-height: 520px;
  }
}

@media (max-width: 575.98px) {
  .public-live-studio-body .admin-live-studio-page {
    padding: 8px;
  }

  .public-live-studio-body .admin-live-studio-top {
    align-items: stretch;
  }

  .public-live-studio-body .admin-live-studio-actions .btn,
  .public-live-studio-body .admin-live-studio-grid .webrtc-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .public-live-studio-body .admin-live-studio-grid .live-player {
    min-height: 300px;
  }
}

.public-broadcast-only-body {
  margin: 0;
  overflow: hidden;
  background: #020617;
}

.public-broadcast-only {
  width: 100vw;
  height: 100dvh;
  overflow: hidden;
  background: #020617;
}

.public-broadcast-stage {
  width: 100%;
  height: 100%;
  display: grid;
  background: #020617;
}

.public-broadcast-player {
  width: 100%;
  height: 100%;
  min-height: 100dvh;
  aspect-ratio: auto;
  border-radius: 0;
  background: #020617;
}

.public-broadcast-player video,
.public-broadcast-player iframe {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #020617;
}

.public-broadcast-player .lesson-media-empty,
.public-broadcast-player .webrtc-audio-stage {
  min-height: 100dvh;
  border: 0;
  border-radius: 0;
  background: #020617;
  color: #e5e7eb;
}

.public-live-hidden-ui {
  display: none !important;
}

[data-conference-only="1"].public-user-live .public-user-live-stage,
[data-conference-only="1"].admin-live-studio-grid {
  grid-template-columns: minmax(0, 1fr) !important;
}

[data-conference-only="1"] .live-right-stack,
[data-conference-only="1"] .public-user-chat-card {
  display: none !important;
}

[data-conference-only="1"].public-user-live .public-user-player-card {
  grid-template-rows: auto minmax(520px, 1fr) auto auto;
}

[data-conference-only="1"].public-user-live .public-user-live-player {
  min-height: clamp(520px, 72dvh, 880px);
}

.public-user-live-body {
  margin: 0;
  overflow: hidden;
  background: #eef4fb;
}

.public-user-live {
  width: 100vw;
  height: 100dvh;
  overflow: hidden;
  background: #eef4fb;
  color: #17212f;
}

.public-user-live-stage {
  height: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 10px;
  padding: 10px;
}

.public-user-player-card,
.public-user-chat-card {
  min-height: 0;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.32);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.12);
}

.public-user-player-card {
  display: grid;
  grid-template-rows: auto minmax(420px, 1fr) auto auto;
  gap: 10px;
  padding: 12px;
}

.public-user-live-head {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 12px;
}

.public-user-live-head h1 {
  margin: 0;
  color: #0f172a;
  font-size: 22px;
  line-height: 1.15;
}

.public-user-live .row-meta,
.public-user-live .muted-copy,
.public-user-live .eyebrow {
  color: #64748b;
}

.public-user-live-player {
  width: 100%;
  height: 100%;
  min-height: clamp(420px, 62dvh, 760px);
  aspect-ratio: auto;
  border: 1px solid rgba(148, 163, 184, 0.34);
  border-radius: 8px;
  background: #f8fafc;
}

.public-user-live-player video,
.public-user-live-player iframe {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #f8fafc;
}

.public-user-live-player .webrtc-video,
.public-user-live-player .webrtc-audio-stage {
  background: #f8fafc;
  color: #17212f;
}

.public-user-live-player .webrtc-audio-stage span {
  color: #64748b;
}

.public-user-chat-card {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
}

.public-user-chat-card .chat-panel-head,
.public-user-chat-card .chat-panel-sub,
.public-user-chat-card .chat-panel-foot {
  border-color: rgba(148, 163, 184, 0.18);
  background: transparent;
}

.public-user-chat-card .chat-panel-sub {
  max-height: 230px;
  overflow: auto;
}

.public-user-chat-card .chat-feed {
  background: rgba(241, 245, 249, 0.72);
}

.public-user-chat-card .chat-item,
.public-user-chat-card .poll-card,
.public-user-chat-card .live-user-strip,
.public-user-chat-card .live-compact-panel,
.public-user-chat-card .poll-option {
  border-color: rgba(148, 163, 184, 0.28);
  background: #ffffff;
  color: #17212f;
}

.public-user-chat-card .chat-item.self {
  border-color: rgba(37, 99, 235, 0.24);
  background: rgba(219, 234, 254, 0.74);
}

.public-user-chat-card .chat-item-head {
  color: #2563eb;
}

.public-user-chat-card .form-control {
  background: #ffffff;
  color: #17212f;
  border-color: rgba(148, 163, 184, 0.42);
}

.public-user-chat-card .form-control::placeholder {
  color: #94a3b8;
}

.public-user-live .webrtc-card {
  border-color: rgba(148, 163, 184, 0.32);
  background: rgba(248, 250, 252, 0.9);
}

.public-user-live .webrtc-actions .btn {
  min-height: 38px;
}

.webrtc-preview {
  margin-top: 10px;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: 8px;
  background: #f8fafc;
}

.webrtc-preview video {
  display: block;
  width: 100%;
  max-height: 180px;
  object-fit: contain;
  background: #f8fafc;
}

.webrtc-preview-audio {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  padding: 12px;
  color: #334155;
}

@media (max-width: 991.98px) {
  .public-user-live-body {
    overflow: auto;
  }

  .public-user-live {
    min-height: 100dvh;
    height: auto;
    overflow: visible;
  }

  .public-user-live-stage {
    height: auto;
    min-height: 100dvh;
    grid-template-columns: 1fr;
  }

  .public-user-live-player {
    min-height: 360px;
  }

  .public-user-chat-card {
    min-height: 520px;
  }
}

@media (max-width: 575.98px) {
  .public-user-live-stage {
    padding: 6px;
  }

  .public-user-player-card,
  .public-user-chat-card {
    border-radius: 6px;
  }

  .public-user-live-head {
    display: grid;
  }

  .public-user-live-player {
    min-height: 260px;
  }

  .public-user-live .webrtc-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Public live final light conference theme */
.public-live-studio-body,
.public-live-studio-body .site-shell,
.public-live-studio-body .admin-live-studio-page,
.public-user-live-body,
.public-user-live {
  background: #eef4fb !important;
  color: #17212f !important;
}

.public-live-studio-body .admin-live-studio-page {
  background: #eef4fb !important;
}

.public-live-studio-body .admin-live-studio-top,
.public-live-studio-body .admin-live-studio-grid .live-player-card,
.public-live-studio-body .admin-live-studio-grid .chat-panel,
.public-live-studio-body .admin-live-studio-grid .stream-card,
.public-user-player-card,
.public-user-chat-card {
  border-color: rgba(148, 163, 184, 0.32) !important;
  background: rgba(255, 255, 255, 0.97) !important;
  color: #17212f !important;
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.12) !important;
}

.public-live-studio-body .admin-live-studio-top .section-title,
.public-live-studio-body .admin-live-studio-grid .live-player-card .h3,
.public-live-studio-body .chat-panel h3,
.public-live-studio-body .table-title,
.public-user-live-head h1 {
  color: #0f172a !important;
}

.public-live-studio-body .admin-live-studio-top .section-copy,
.public-live-studio-body .admin-live-studio-grid .webrtc-status-line span,
.public-live-studio-body .admin-live-studio-grid .row-meta,
.public-live-studio-body .admin-live-studio-grid .muted-copy,
.public-live-studio-body .admin-live-studio-grid .eyebrow,
.public-user-live .row-meta,
.public-user-live .muted-copy,
.public-user-live .eyebrow {
  color: #64748b !important;
}

.public-live-studio-body .admin-live-studio-grid .live-player,
.public-user-live-player {
  border-color: rgba(148, 163, 184, 0.34) !important;
  background: #f8fafc !important;
}

.public-live-studio-body .admin-live-studio-grid .live-player video,
.public-live-studio-body .admin-live-studio-grid .live-player iframe,
.public-live-studio-body .admin-live-studio-grid .live-player .webrtc-video,
.public-live-studio-body .admin-live-studio-grid .webrtc-audio-stage,
.public-user-live-player video,
.public-user-live-player iframe,
.public-user-live-player .webrtc-video,
.public-user-live-player .webrtc-audio-stage {
  background: #f8fafc !important;
  color: #17212f !important;
}

.public-live-studio-body .admin-live-studio-grid .lesson-media-empty,
.public-live-studio-body .admin-live-studio-grid .webrtc-audio-stage span,
.public-user-live-player .lesson-media-empty,
.public-user-live-player .webrtc-audio-stage span {
  color: #64748b !important;
}

.public-live-studio-body .admin-live-studio-grid .webrtc-card,
.public-user-live .webrtc-card {
  border-color: rgba(148, 163, 184, 0.32) !important;
  background: rgba(248, 250, 252, 0.92) !important;
  color: #17212f !important;
  display: grid;
  gap: 10px;
}

.public-live-studio-body .admin-live-studio-grid .webrtc-actions,
.public-user-live .webrtc-actions {
  display: flex !important;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.public-live-studio-body .admin-live-studio-grid .webrtc-actions .btn,
.public-user-live .webrtc-actions .btn,
.webrtc-request-strip .btn {
  min-height: 40px;
  border-radius: 8px;
  font-weight: 800;
  opacity: 1 !important;
  visibility: visible !important;
}

.public-live-studio-body .admin-live-studio-grid .webrtc-actions .btn-outline-tta,
.public-user-live .webrtc-actions .btn-outline-tta {
  border-color: rgba(37, 99, 235, 0.55) !important;
  background: #ffffff !important;
  color: #1d4ed8 !important;
}

.public-live-studio-body .admin-live-studio-grid .webrtc-actions .btn-outline-secondary,
.public-user-live .webrtc-actions .btn-outline-secondary,
.webrtc-request-strip .btn-outline-secondary {
  border-color: rgba(100, 116, 139, 0.42) !important;
  background: #ffffff !important;
  color: #334155 !important;
}

.webrtc-request-strip {
  display: grid;
  gap: 8px;
  padding-top: 2px;
}

.webrtc-request-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px;
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: 8px;
  background: #eff6ff;
  color: #17212f;
}

.webrtc-request-row > span,
.webrtc-request-row > div {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.public-live-studio-body .admin-live-studio-grid .chat-panel-head,
.public-live-studio-body .admin-live-studio-grid .chat-panel-sub,
.public-live-studio-body .admin-live-studio-grid .chat-panel-foot,
.public-user-chat-card .chat-panel-head,
.public-user-chat-card .chat-panel-sub,
.public-user-chat-card .chat-panel-foot {
  border-color: rgba(148, 163, 184, 0.22) !important;
  background: transparent !important;
}

.public-live-studio-body .admin-live-studio-grid .chat-feed,
.public-user-chat-card .chat-feed {
  background: rgba(241, 245, 249, 0.78) !important;
}

.public-live-studio-body .admin-live-studio-grid .chat-item,
.public-live-studio-body .admin-live-studio-grid .poll-card,
.public-live-studio-body .admin-live-studio-grid .speaker-request-item,
.public-live-studio-body .admin-live-studio-grid .live-user-strip,
.public-live-studio-body .admin-live-studio-grid .live-compact-panel,
.public-live-studio-body .admin-live-studio-grid .poll-option,
.public-user-chat-card .chat-item,
.public-user-chat-card .poll-card,
.public-user-chat-card .live-user-strip,
.public-user-chat-card .live-compact-panel,
.public-user-chat-card .poll-option {
  border-color: rgba(148, 163, 184, 0.28) !important;
  background: #ffffff !important;
  color: #17212f !important;
}

.public-live-studio-body .admin-live-studio-grid .chat-item.self,
.public-user-chat-card .chat-item.self {
  border-color: rgba(37, 99, 235, 0.24) !important;
  background: rgba(219, 234, 254, 0.74) !important;
}

.public-live-studio-body .admin-live-studio-grid .chat-item-head,
.public-user-chat-card .chat-item-head {
  color: #2563eb !important;
}

.public-live-studio-body .admin-live-studio-grid .chat-panel .form-control,
.public-user-chat-card .form-control {
  border-color: rgba(148, 163, 184, 0.42) !important;
  background: #ffffff !important;
  color: #17212f !important;
}

.webrtc-conference-stage {
  width: 100%;
  height: 100%;
  min-height: 100%;
  display: grid;
  gap: 8px;
  padding: 8px;
  background: #f8fafc;
  grid-auto-rows: minmax(220px, 1fr);
}

.webrtc-conference-stage.single {
  grid-template-columns: 1fr;
}

.webrtc-conference-stage.quad {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.webrtc-conference-stage.many {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.webrtc-tile {
  position: relative;
  min-width: 0;
  min-height: 220px;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 8px;
  background: #eaf1f8;
  box-shadow: inset 0 0 0 calc(var(--voice-level, 0) * 8px) rgba(37, 99, 235, 0.16);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.webrtc-conference-stage.single .webrtc-tile {
  min-height: 100%;
}

.webrtc-tile.is-speaking {
  border-color: rgba(37, 99, 235, 0.8);
  box-shadow:
    inset 0 0 0 calc(2px + var(--voice-level, 0) * 10px) rgba(37, 99, 235, 0.2),
    0 0 0 calc(var(--voice-level, 0) * 16px) rgba(37, 99, 235, 0.08);
}

.webrtc-tile video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #eaf1f8;
}

.webrtc-name-pill {
  position: absolute;
  left: 10px;
  bottom: 10px;
  max-width: calc(100% - 20px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  border-radius: 999px;
  padding: 4px 9px;
  background: rgba(15, 23, 42, 0.72);
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
}

.webrtc-speaking-pill {
  position: absolute;
  right: 10px;
  bottom: 10px;
  display: none;
  align-items: center;
  gap: 5px;
  border-radius: 999px;
  padding: 4px 9px;
  background: rgba(37, 99, 235, 0.9);
  color: #ffffff;
  font-size: 12px;
  font-weight: 800;
}

.webrtc-tile.is-speaking .webrtc-speaking-pill {
  display: inline-flex;
  animation: liveSpeakingPulse 900ms ease-in-out infinite;
}

@keyframes liveSpeakingPulse {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-2px);
  }
}

.webrtc-tile-audio {
  width: 100%;
  height: 100%;
  min-height: 180px;
  display: grid;
  place-items: center;
  color: #2563eb;
  font-size: 42px;
}

.webrtc-tile audio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 1199.98px) {
  .public-live-studio-body .admin-live-studio-grid .live-player-card {
    min-height: 0;
    grid-template-rows: auto auto minmax(420px, auto) auto;
  }

  .public-live-studio-body .admin-live-studio-grid .live-player,
  .public-user-live-player {
    min-height: 420px;
  }
}

@media (max-width: 575.98px) {
  .public-live-studio-body .admin-live-studio-grid .live-player,
  .public-user-live-player {
    min-height: 320px;
  }

  .public-user-player-card {
    grid-template-rows: auto minmax(320px, auto) auto auto;
  }

  .webrtc-conference-stage {
    grid-auto-rows: minmax(180px, 1fr);
  }

  .webrtc-tile {
    min-height: 180px;
  }

  .webrtc-request-row {
    align-items: stretch;
    display: grid;
  }
}

/* Zoom-like live controls */
.public-live-studio-body .webrtc-panel,
.public-user-live .webrtc-panel {
  position: relative;
  z-index: 5;
}

.webrtc-control-dock {
  display: grid;
  gap: 8px;
  overflow: visible;
  max-width: 100%;
  padding: 10px !important;
  border-radius: 8px !important;
  background: rgba(255, 255, 255, 0.96) !important;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.1) !important;
}

.webrtc-control-dock .webrtc-status-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
}

.webrtc-control-dock .webrtc-status-line strong {
  color: #0f172a;
  font-size: 14px;
  line-height: 1.2;
}

.webrtc-control-dock .webrtc-status-line span {
  min-width: 0;
  max-width: none;
  color: #64748b !important;
  font-size: 13px;
  white-space: normal;
}

.webrtc-control-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.webrtc-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 28px;
  max-width: 100%;
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: 999px;
  padding: 4px 9px;
  background: #ffffff;
  color: #334155;
  font-size: 12px;
  font-weight: 750;
}

.webrtc-chip.live {
  border-color: rgba(34, 197, 94, 0.34);
  background: #ecfdf5;
  color: #047857;
}

.webrtc-chip.attention {
  border-color: rgba(245, 158, 11, 0.34);
  background: #fffbeb;
  color: #92400e;
}

.webrtc-chip.danger {
  border-color: rgba(185, 28, 43, 0.28);
  background: #fff1f2;
  color: #991b1b;
}

.webrtc-control-dock .webrtc-actions {
  display: flex !important;
  justify-content: flex-start !important;
  align-items: stretch !important;
  flex-wrap: nowrap !important;
  gap: 8px !important;
  min-width: 0;
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 2px;
  scrollbar-width: thin;
}

.webrtc-control-btn {
  min-width: 84px;
  min-height: 58px !important;
  flex: 0 0 84px;
  flex-direction: column;
  justify-content: center;
  gap: 4px !important;
  padding: 8px 10px !important;
  border-radius: 8px !important;
  line-height: 1.1;
  white-space: normal !important;
}

.webrtc-control-btn i {
  font-size: 18px;
  line-height: 1;
}

.webrtc-control-btn span {
  max-width: 92px;
  overflow-wrap: anywhere;
  font-size: 11px;
  font-weight: 800;
}

.webrtc-control-btn.is-active {
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.18);
}

.webrtc-control-btn.btn-outline-danger {
  border-color: rgba(185, 28, 43, 0.42) !important;
  background: #ffffff !important;
  color: #b91c2b !important;
}

.webrtc-control-btn.btn-outline-danger:hover {
  background: #fff1f2 !important;
}

.webrtc-request-row .webrtc-control-btn {
  min-width: 94px;
  min-height: 40px !important;
  flex-direction: row;
}

.webrtc-request-row .webrtc-control-btn span {
  max-width: none;
  font-size: 12px;
}

.webrtc-participant-strip {
  display: grid;
  gap: 8px;
  width: 100%;
  max-height: clamp(104px, 18dvh, 230px);
  overflow: auto;
  padding-right: 2px;
  scrollbar-width: thin;
}

.webrtc-participant-row,
.webrtc-participant-empty {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  min-width: 0;
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: 8px;
  padding: 9px 10px;
  background: #ffffff;
}

.webrtc-participant-row strong {
  display: block;
  max-width: 260px;
  overflow: hidden;
  color: #0f172a;
  font-size: 13px;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.webrtc-participant-row span,
.webrtc-participant-empty span {
  display: block;
  color: #64748b;
  font-size: 12px;
  font-weight: 700;
}

.webrtc-participant-empty {
  justify-content: flex-start;
  color: #2563eb;
}

.webrtc-participant-actions {
  display: flex;
  flex-shrink: 0;
  gap: 6px;
}

.webrtc-participant-actions .webrtc-control-btn {
  min-width: 82px;
  min-height: 40px !important;
  flex: 0 0 auto;
  flex-direction: row;
}

.webrtc-participant-actions .webrtc-control-btn span {
  max-width: none;
  font-size: 12px;
}

.public-user-live .webrtc-control-dock {
  margin-top: 0;
}

.public-live-studio-body .admin-live-studio-grid .webrtc-control-dock {
  margin-top: 0;
}

[data-conference-only="1"] .public-user-player-card,
[data-conference-only="1"] .live-player-card {
  overflow: visible !important;
}

@media (max-width: 991.98px) {
  .webrtc-control-dock .webrtc-actions {
    justify-content: flex-start !important;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .webrtc-control-btn {
    min-width: 78px;
    flex-basis: 78px;
  }
}

@media (max-width: 575.98px) {
  .webrtc-control-dock {
    padding: 8px !important;
  }

  .webrtc-control-dock .webrtc-status-line {
    display: grid;
  }

  .webrtc-control-btn {
    min-width: calc(50% - 4px);
    flex-basis: calc(50% - 4px);
    min-height: 52px !important;
  }

  .webrtc-participant-row {
    align-items: stretch;
    flex-direction: column;
  }

  .webrtc-participant-actions,
  .webrtc-participant-actions .webrtc-control-btn {
    width: 100%;
  }

  .webrtc-participant-actions .webrtc-control-btn {
    flex-basis: 100%;
  }
}