:root {
  --navy: #1a3a5c;
  --gold: #c9a84c;
  --navy-light: #2a5080;
}

/* Color utilities */
.text-navy { color: var(--navy) !important; }
.text-gold { color: var(--gold) !important; }
.bg-navy { background-color: var(--navy) !important; }
.bg-gold { background-color: var(--gold) !important; }
.border-navy { border-color: var(--navy) !important; }
.border-gold { border-color: var(--gold) !important; }
.border-4 { border-width: 4px !important; }

/* Buttons */
.btn-navy {
  background-color: var(--navy);
  border-color: var(--navy);
  color: #fff;
}
.btn-navy:hover, .btn-navy:focus {
  background-color: var(--navy-light);
  border-color: var(--navy-light);
  color: #fff;
}
.btn-outline-navy {
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline-navy:hover {
  background-color: var(--navy);
  color: #fff;
}
.btn-gold {
  background-color: var(--gold);
  border-color: var(--gold);
  color: #fff;
  font-weight: 600;
}
.btn-gold:hover {
  background-color: #b8922e;
  border-color: #b8922e;
  color: #fff;
}
.btn-outline-gold {
  color: var(--gold);
  border-color: var(--gold);
}
.btn-outline-gold:hover {
  background-color: var(--gold);
  color: #fff;
}

/* Hero */
.hero-section {
  background: linear-gradient(135deg, var(--navy) 0%, #2a5080 60%, #1a3a5c 100%);
  min-height: 420px;
  display: flex;
  align-items: center;
}

/* Navbar */
.navbar.bg-navy {
  background-color: var(--navy) !important;
}
.navbar .nav-link {
  color: rgba(255,255,255,0.85) !important;
  transition: color 0.15s;
}
.navbar .nav-link:hover {
  color: var(--gold) !important;
}
.navbar-brand {
  color: #fff !important;
}

/* Course card hover */
.course-card {
  transition: transform 0.15s, box-shadow 0.15s;
}
.course-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(26,58,92,0.15) !important;
}

/* Quiz options */
.quiz-option {
  transition: background 0.1s, border-color 0.1s;
}
.quiz-option:hover {
  background: #f0f4f8;
  border-color: var(--navy) !important;
}

/* Lesson content typography */
.lesson-content {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #333;
}
.lesson-content p { margin-bottom: 1.2rem; }

/* Progress bar gold */
.progress-bar.bg-gold {
  background-color: var(--gold) !important;
}

/* Accordion */
.accordion-button:not(.collapsed) {
  background-color: #f0f4f8;
  color: var(--navy);
  box-shadow: none;
}
.accordion-button:focus {
  box-shadow: 0 0 0 0.2rem rgba(26,58,92,0.15);
}

.module-toggle {
  display: flex !important;
  align-items: center;
  gap: 0.9rem;
  padding-right: 1.25rem;
}

.module-toggle-title-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
  flex: 1 1 auto !important;
  margin-right: auto !important;
  order: 1 !important;
}

.module-toggle-icon {
  flex-shrink: 0;
  font-size: 1rem;
}

.module-toggle-title {
  display: block;
  min-width: 0;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.module-toggle-badge {
  flex: 0 0 auto !important;
  margin-left: auto !important;
  min-width: 6.75rem;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  text-align: center;
  font-weight: 700;
  letter-spacing: 0.01em;
  white-space: nowrap;
  box-shadow: 0 10px 24px rgba(26,58,92,0.12);
  order: 2 !important;
}

.module-toggle::after {
  margin-left: 0.6rem !important;
  flex-shrink: 0;
  order: 3 !important;
}

@media (max-width: 575.98px) {
  .module-toggle {
    align-items: center;
    gap: 0.55rem;
    padding-right: 1rem;
  }

  .module-toggle-title-row {
    align-items: flex-start;
  }

  .module-toggle-icon {
    margin-top: 0.2rem;
  }

  .module-toggle-badge {
    min-width: 5.8rem;
    padding-inline: 0.75rem;
  }
}

/* Badges */
.badge.bg-gold {
  background-color: var(--gold) !important;
}

/* Course detail */
.course-meta-card {
  border-left: 4px solid rgba(201,168,76,0.85);
}

.module-summary-card {
  background: rgba(255,255,255,0.9);
  border: 1px solid rgba(26,58,92,0.08);
  border-radius: 1rem;
  padding: 1rem;
}

/* Lesson experience */
.lesson-shell {
  position: relative;
}

.lesson-hero {
  background: linear-gradient(135deg, #17314e 0%, #224d78 60%, #2b5d8d 100%);
}

.lesson-sidebar {
  background: linear-gradient(180deg, rgba(255,255,255,1) 0%, rgba(244,247,251,1) 100%);
}

/* Video player card */
.video-player-card {
  border-radius: 1rem;
  border: 1px solid rgba(26,58,92,0.10);
  box-shadow: 0 8px 32px rgba(26,58,92,0.10);
  overflow: hidden;
}

.video-player-card .card-header {
  background: linear-gradient(135deg, #17314e 0%, #224d78 100%) !important;
  border-bottom: 2px solid var(--gold);
}

.video-player-card iframe {
  border: 0;
  border-bottom-left-radius: 0.85rem;
  border-bottom-right-radius: 0.85rem;
}

.study-card {
  background: #fff;
  border: 1px solid rgba(26,58,92,0.08);
  border-radius: 1rem;
  padding: 1rem 1.1rem;
  box-shadow: 0 10px 25px rgba(26,58,92,0.06);
}

.study-card-title {
  color: var(--navy);
  font-weight: 700;
  margin-bottom: 0.85rem;
}

.lesson-image-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(26,58,92,0.10);
  border-radius: 1rem;
  background: #fff;
  box-shadow: 0 10px 26px rgba(26,58,92,0.08);
}

.lesson-image-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: min(560px, 70vh);
  object-fit: contain;
  background: #f6f8fb;
}

.lesson-image-figure figcaption {
  padding: 0.85rem 1rem;
  color: #5e6c84;
  font-size: 0.92rem;
  line-height: 1.65;
  border-top: 1px solid rgba(26,58,92,0.08);
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.lesson-resource-card {
  overflow: hidden;
}

.lesson-pdf-viewer {
  overflow: hidden;
  border: 1px solid rgba(26,58,92,0.10);
  border-radius: 0.9rem;
  background: #f6f8fb;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.70);
}

.lesson-pdf-toolbar {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  color: #5e6c84;
  font-size: 0.88rem;
  font-weight: 700;
  border-bottom: 1px solid rgba(26,58,92,0.08);
  background: #fff;
}

.lesson-pdf-pages {
  height: min(50vh, 560px);
  max-height: 50vh;
  min-height: 320px;
  overflow-y: auto;
  padding: 1rem;
  background: #e9edf3;
}

.lesson-pdf-page {
  position: relative;
  max-width: 920px;
  margin: 0 auto 1rem;
  padding: 0.75rem;
  border-radius: 0.75rem;
  background: #fff;
  box-shadow: 0 8px 26px rgba(26,58,92,0.14);
}

.lesson-pdf-page canvas {
  display: block;
  width: 100%;
  height: auto;
}

.lesson-pdf-page-label {
  padding-top: 0.6rem;
  color: #6b7a9a;
  font-size: 0.78rem;
  font-weight: 700;
  text-align: center;
}

.lesson-pdf-viewer.is-error .lesson-pdf-pages {
  display: none;
}

.lesson-uploaded-image {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(26,58,92,0.10);
  border-radius: 0.9rem;
  background: #f6f8fb;
}

.lesson-uploaded-image img {
  display: block;
  width: 100%;
  height: auto;
  max-height: min(560px, 70vh);
  object-fit: contain;
}

.lesson-resource-caption {
  margin: 0.8rem 0 0;
  padding: 0.75rem 0.9rem;
  color: #5e6c84;
  font-size: 0.92rem;
  line-height: 1.65;
  border: 1px solid rgba(26,58,92,0.08);
  border-radius: 0.75rem;
  background: #f8fafc;
}

.lesson-quiz-card {
  display: grid;
  padding: 1.8rem 2rem;
}

.lesson-quiz-card-body {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.lesson-quiz-copy {
  flex: 1 1 auto;
  display: grid;
  gap: 1rem;
  min-width: 0;
  max-width: 40rem;
}

.lesson-quiz-copy .study-card-title {
  margin-bottom: 0;
}

.lesson-quiz-summary {
  font-size: 1rem;
  line-height: 1.5;
}

.lesson-quiz-action {
  width: fit-content;
  border-radius: 2rem;
  padding: 0.5rem 1.2rem;
  font-size: 0.9rem;
}

.lesson-quiz-score {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.lesson-score-ring {
  width: 110px;
  height: 110px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
}

.lesson-score-ring-svg {
  grid-area: 1 / 1;
  width: 110px;
  height: 110px;
  transform: rotate(-90deg);
  display: block;
}

.lesson-score-ring-track {
  fill: none;
  stroke: #e0e7ef;
  stroke-width: 9;
}

.lesson-score-ring-progress {
  fill: none;
  stroke-width: 9;
  stroke-linecap: round;
}

.lesson-score-ring.is-passed .lesson-score-ring-progress {
  stroke: #24b56d;
}

.lesson-score-ring.is-failed .lesson-score-ring-progress {
  stroke: #dc3545;
}

.lesson-score-ring-inner {
  grid-area: 1 / 1;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lesson-score-value {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;
  color: #1a3a5c;
}

.study-list {
  margin: 0;
  padding-left: 1.5rem;
  list-style-position: outside;
}
.study-list li {
  margin-bottom: 0.65rem;
}
.study-list li:last-child {
  margin-bottom: 0;
}

.lesson-chat-stream {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.lesson-chat-bubble {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  opacity: 0;
  transform: translateY(20px);
  max-height: 0;
  overflow: hidden;
  pointer-events: none;
  transition: opacity 0.35s ease, transform 0.35s ease, max-height 0.45s ease, padding 0.3s ease;
}

.lesson-chat-bubble.is-visible {
  opacity: 1;
  transform: translateY(0);
  max-height: 420px;
  pointer-events: auto;
}

@media (max-width: 575.98px) {
  .lesson-quiz-card {
    padding: 1.35rem 1.25rem;
  }

  .lesson-quiz-card-body {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  .lesson-quiz-score {
    align-self: center;
  }

  .lesson-score-ring {
    width: 80px;
    height: 80px;
  }

  .lesson-quiz-action {
    width: 100%;
    min-width: 0;
  }
}

.lesson-chat-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #fff;
  box-shadow: 0 10px 24px rgba(26,58,92,0.14);
}

.lesson-chat-bubble-guide .lesson-chat-avatar {
  background: linear-gradient(135deg, var(--navy) 0%, #2b5d8d 100%);
}

.lesson-chat-bubble-student .lesson-chat-avatar {
  background: linear-gradient(135deg, var(--gold) 0%, #d8b85f 100%);
}

.lesson-chat-content {
  max-width: min(100%, 680px);
  border-radius: 1.25rem;
  padding: 1rem 1.1rem;
  box-shadow: 0 16px 35px rgba(26,58,92,0.08);
}

.lesson-chat-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 0.45rem;
}

.lesson-chat-bubble-guide .lesson-chat-content {
  background: #f4f7fb;
  border-top-left-radius: 0.3rem;
}

.lesson-chat-bubble-guide .lesson-chat-label {
  color: var(--navy);
}

.lesson-chat-bubble-student {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.lesson-chat-bubble-student .lesson-chat-content {
  background: linear-gradient(135deg, rgba(201,168,76,0.16) 0%, rgba(255,245,211,0.95) 100%);
  border-top-right-radius: 0.3rem;
}

.lesson-chat-bubble-student .lesson-chat-label {
  color: #8b6a10;
}

/* Footer */
footer.bg-navy .text-muted {
  color: rgba(255,255,255,0.65) !important;
}
footer.bg-navy a:hover { color: var(--gold) !important; }

/* Mobile responsiveness */
@media (max-width: 576px) {
  .hero-section { min-height: 320px; padding: 2rem 0; }
  .display-4 { font-size: 2rem; }
  .lesson-chat-avatar {
    width: 38px;
    height: 38px;
  }
  .lesson-chat-content {
    padding: 0.85rem 0.95rem;
  }
  .lesson-chat-bubble.is-visible {
    max-height: 540px;
  }
}

/* Smart bullets for perfect hanging indent */
ul.smart-bullets, ol.smart-bullets,
.lesson-content ul, .lesson-content ol {
  padding-left: 1.5rem;
  list-style-position: outside;
}
ul.smart-bullets li, ol.smart-bullets li,
.lesson-content ul li, .lesson-content ol li {
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

/* ── Global navbar search panel ── */
.search-panel-collapse {
  background: #142f4e;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.search-panel-body {
  max-width: 680px;
  margin: 0 auto;
  padding: 0.65rem 1rem 0.75rem;
}

/* Single search input bar */
.search-input-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 10px;
  padding: 0 0.6rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.search-input-wrap:focus-within {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.18);
}
.search-icon-prefix {
  color: rgba(255,255,255,0.40);
  font-size: 0.85rem;
  flex-shrink: 0;
}
.search-main-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: 0.93rem;
  padding: 0.58rem 0;
  min-width: 0;
}
.search-main-input::placeholder { color: rgba(255,255,255,0.38); }

/* Small icon buttons inside input bar */
.search-action-btn {
  background: transparent;
  border: none;
  color: rgba(255,255,255,0.40);
  padding: 0.2rem 0.3rem;
  line-height: 1;
  cursor: pointer;
  transition: color 0.15s;
  flex-shrink: 0;
}
.search-action-btn:hover,
.search-action-btn.active { color: var(--gold); }

/* Filter chip row (hidden by default) */
.search-filter-chips {
  display: none;
  flex-wrap: wrap;
  gap: 0.4rem;
  background: #142f4e;
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 0.2rem;
}
.search-filter-chips.open { display: flex; }

.search-chip {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 999px;
  color: rgba(255,255,255,0.82);
  font-size: 0.76rem;
  padding: 0.22rem 0.8rem 0.22rem 0.65rem;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='rgba%28255%2C255%2C255%2C0.5%29' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.45rem center;
  background-size: 0.7rem;
  padding-right: 1.5rem;
}
.search-chip:focus { outline: none; border-color: var(--gold); }
.search-chip option { background: #142f4e; color: #fff; }

/* Live results floating card */
.search-results-card {
  margin-top: 0.45rem;
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0,0,0,0.28);
}
.sr-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1rem;
  text-decoration: none;
  color: var(--navy);
  border-bottom: 1px solid rgba(26,58,92,0.07);
  transition: background 0.1s;
  cursor: pointer;
}
.sr-item:last-of-type { border-bottom: none; }
.sr-item:hover, .sr-item.active { background: #f0f5ff; }
.sr-code {
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  background: var(--navy);
  border-radius: 4px;
  padding: 0.12rem 0.38rem;
  flex-shrink: 0;
  white-space: nowrap;
}
.sr-title {
  flex: 1;
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.sr-title mark {
  background: rgba(201,168,76,0.30);
  color: inherit;
  border-radius: 2px;
  padding: 0;
}
.sr-level {
  font-size: 0.7rem;
  color: rgba(26,58,92,0.55);
  flex-shrink: 0;
}
.sr-price { font-size: 0.72rem; flex-shrink: 0; font-weight: 600; }
.sr-free  { color: #1a8754; }
.sr-paid  { color: rgba(26,58,92,0.55); }
.sr-empty {
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  color: rgba(26,58,92,0.55);
  text-align: center;
}
.sr-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.45rem 1rem;
  background: #f8f9fb;
  font-size: 0.75rem;
  color: rgba(26,58,92,0.55);
  border-top: 1px solid rgba(26,58,92,0.07);
}
.sr-footer a { color: var(--navy); font-weight: 600; text-decoration: none; }
.sr-footer a:hover { text-decoration: underline; }

/* Search toggle icon button in navbar */
.search-toggle-btn {
  position: relative;
  color: rgba(255,255,255,0.85) !important;
  transition: color 0.15s;
}
.search-toggle-btn:hover { color: var(--gold) !important; }

/* Gold dot when filters are active */
.search-active-dot {
  display: none;
  position: absolute;
  top: 2px; right: 2px;
  width: 7px; height: 7px;
  background: var(--gold);
  border-radius: 50%;
  border: 1.5px solid var(--navy);
}
.search-active-dot.visible { display: block; }

.lesson-inline-quiz {
  border: 1px solid rgba(201, 168, 76, 0.45);
  border-radius: 10px;
  background: #fffdf6;
  padding: 1rem;
}

.lesson-inline-quiz-header,
.lesson-inline-quiz-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.lesson-inline-quiz-header {
  padding-bottom: 0.85rem;
  border-bottom: 1px solid rgba(201, 168, 76, 0.25);
}

.lesson-inline-quiz-questions {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.lesson-inline-quiz-question {
  margin: 0;
  padding: 0;
  border: 0;
}

.lesson-inline-quiz-question legend {
  float: none;
  width: auto;
  margin-bottom: 0.55rem;
  color: var(--navy);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.45;
}

.lesson-inline-quiz-choices {
  display: grid;
  gap: 0.5rem;
}

.lesson-inline-quiz-choice {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid rgba(26, 58, 92, 0.12);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
}

.lesson-inline-quiz-choice input {
  margin-top: 0.2rem;
  accent-color: var(--gold);
}

.lesson-inline-quiz-choice.is-correct {
  border-color: rgba(25, 135, 84, 0.45);
  background: rgba(25, 135, 84, 0.08);
}

.lesson-inline-quiz-choice.is-wrong {
  border-color: rgba(220, 53, 69, 0.4);
  background: rgba(220, 53, 69, 0.06);
}

.lesson-inline-quiz-footer {
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid rgba(201, 168, 76, 0.25);
}

.lesson-inline-quiz-result {
  color: var(--navy);
  font-size: 0.9rem;
  font-weight: 700;
}

@media (max-width: 576px) {
  .lesson-inline-quiz-header,
  .lesson-inline-quiz-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}