body.chapter-preview-theme {
  /* Premium Blue Palette from reference image */
  --p-h: 236;
  --p-s: 50%;
  --p-l: 34%;

  --primary: #2b347b;
  /* Deep Indigo from image */
  --primary-light: #3b45a8;
  --primary-dark: #1e255a;
  --primary-glow: rgba(43, 52, 123, 0.15);

  --secondary: #64748b;
  --accent: #2e3c51;

  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  --bg-app: #f8fafc;
  --bg-sidebar: #ffffff;
  --bg-card: #ffffff;

  --border-glass: rgba(255, 255, 255, 0.3);
  --border-color: #f1f5f9;
  --border-accent: #e2e8f0;

  --radius-xl: 12px;
  --radius-lg: 12px;
  --radius-md: 12px;
  --radius-sm: 8px;

  --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.03);
  --shadow-premium: 0 10px 40px -10px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 15px 35px -5px rgba(0, 0, 0, 0.08);

  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-blur: blur(12px);
  --glass-border: 1px solid rgba(255, 255, 255, 0.2);
}

body.chapter-preview-theme *,
body.chapter-preview-theme *::before,
body.chapter-preview-theme *::after {
  box-sizing: border-box;
}

body.chapter-preview-theme {
  margin: 0;
  padding: 0;
  font-family: 'Manrope', sans-serif;
  background-color: #ffffff;
  color: var(--text-main);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  max-width: 100%;
  width: 100%;
}

.mobile-header {
  display: none;
}

/* Top Bar */
.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 48px;
  background: white;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 900;
  margin-left: 280px;
  transition: all 0.4s ease;
}

.top-bar-search {
  flex-grow: 1;
  max-width: 600px;
  position: relative;
}

.top-bar-search input {
  width: 100%;
  padding: 12px 16px 12px 48px;
  border-radius: 14px;
  border: 1.5px solid var(--border-accent);
  background: #f8fafc;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--text-main);
}

.top-bar-search input:focus {
  outline: none;
  border-color: var(--primary);
  background: white;
  box-shadow: 0 0 0 4px var(--primary-glow);
  transform: translateY(-1px);
}

/* Premium Textarea Styling */
.premium-textarea {
  width: 100%;
  padding: 16px 22px;
  border-radius: 20px;
  border: 1.5px solid rgba(43, 52, 123, 0.08);
  background: #ffffff;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.5;
  min-height: 100px;
  resize: vertical;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02), inset 0 2px 4px rgba(0, 0, 0, 0.01);
}

.premium-textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: white;
  box-shadow: 0 12px 30px -10px rgba(43, 52, 123, 0.12), 0 0 0 5px var(--primary-glow);
  transform: translateY(-2px);
}

.premium-textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.4;
}

.top-bar-search .search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 22px;
}

.top-bar-user {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: 32px;
}

.top-user-info {
  text-align: right;
}

.top-user-name {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-main);
}

.top-user-email {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.top-bar-avatar {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  object-fit: cover;
  border: 2px solid white;
  box-shadow: var(--shadow-soft);
  transition: all 0.3s ease;
}

.top-bar-avatar:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-sm);
}

@media (max-width: 991px) {
  .top-bar {
    margin-left: 0;
    padding: 12px 20px;
    margin-top: 64px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
  }
}

.learning-modes-nav {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.learning-modes-mobile {
  display: none;
}

.learning-mode-select {
  width: 100%;
  appearance: none;
  border: 1px solid var(--border-accent);
  border-radius: 14px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.96));
  color: var(--text-main);
  font: inherit;
  font-weight: 700;
  padding: 14px 48px 14px 16px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
  background-image:
    linear-gradient(45deg, transparent 50%, var(--primary) 50%),
    linear-gradient(135deg, var(--primary) 50%, transparent 50%);
  background-position:
    calc(100% - 20px) calc(50% - 3px),
    calc(100% - 14px) calc(50% - 3px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

.learning-mode-select:focus {
  outline: none;
  border-color: rgba(43, 52, 123, 0.35);
  box-shadow: 0 0 0 4px rgba(43, 52, 123, 0.08);
}

.learning-modes-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.learning-mode-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(43, 52, 123, 0.12);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(243, 244, 246, 0.92));
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.learning-mode-chip:hover {
  background: rgba(43, 52, 123, 0.05);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(43, 52, 123, 0.1);
}

.learning-mode-chip.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 14px 28px rgba(43, 52, 123, 0.22);
}

@media (max-width: 768px) {
  .learning-modes-mobile {
    display: block;
  }

  .learning-modes-list {
    gap: 8px;
  }

  .learning-mode-chip {
    font-size: 0.88rem;
    padding: 9px 14px;
  }
}

/* Sidebar */
.sidebar {
  width: 280px;
  background: #ffffff;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 32px 20px;
  position: fixed;
  left: 0;
  top: 0;
  height: 100vh;
  z-index: 1000;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  z-index: 999;
  transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
  display: block;
}

.logo-container {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  padding: 0 12px;
  margin-bottom: 32px;
  text-decoration: none;
  min-height: 76px;
}

.brand-logo {
  display: block;
  width: 100px;
  height: 100px;
  background-image: url("/images/brand-logo.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: left center;
}

.brand-logo-small {
  width: 100px;
  height: 48px;
  background-image: url("/images/brand-logo.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: left center;
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-grow: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 8px;
  margin-right: -8px;
}

/* Premium Thin Scrollbar for Sidebar */
.nav-menu::-webkit-scrollbar {
  width: 4px;
}

.nav-menu::-webkit-scrollbar-track {
  background: transparent;
}

.nav-menu::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.05);
  border-radius: 10px;
}

.nav-menu:hover::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.1);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--secondary);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.nav-item:hover {
  background: rgba(99, 102, 241, 0.05);
  color: var(--primary);
  transform: translateX(4px);
}

.nav-item.active {
  background: linear-gradient(90deg, hsla(var(--p-h), var(--p-s), var(--p-l), 0.1), transparent);
  color: var(--primary);
  font-weight: 800;
}

.nav-item i {
  font-size: 22px;
  transition: transform 0.3s ease;
}

.nav-item:hover i {
  transform: scale(1.1);
}

/* Sub-menu Styling */
.nav-submenu {
  display: flex;
  flex-direction: column;
  padding-left: 20px;
  gap: 4px;
  margin-top: -4px;
  margin-bottom: 8px;
}

.nav-submenu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-radius: 10px;
  text-decoration: none;
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 600;
  transition: all 0.3s ease;
}

.nav-submenu-item:hover {
  background: rgba(43, 52, 123, 0.05);
  color: var(--primary);
  transform: translateX(4px);
}

.nav-submenu-item.active {
  color: var(--primary);
  background: rgba(43, 52, 123, 0.08);
  font-weight: 800;
}

.nav-submenu-item i {
  font-size: 18px;
  opacity: 0.7;
}

.sidebar-bottom {
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
  margin-bottom: 12px;
}

.user-avatar {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.user-info {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.user-email {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.logout-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  text-decoration: none;
  color: #ef4444;
  font-weight: 600;
}

/* Main Content */
.main-content {
  flex-grow: 1;
  min-width: 0;
  margin-left: 280px;
}

/* Hero Section */
.hero-section {
  position: relative;
  overflow: hidden;
  padding: 8px 0 0;
  background: transparent;
  border-bottom: none;
  margin-bottom: 0;
}

.hero-section h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: #111827;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  line-height: 1.2;
}

.lesson-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  background: #f3f4f6;
  color: #4b5563;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.hero-summary {
  font-size: 1.1rem;
  line-height: 1.6;
  color: #4b5563;
  max-width: none;
  font-weight: 500;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(43, 52, 123, 0.06);
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 700;
}

.hero-kicker-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  opacity: 0.75;
}

.hero-kicker-value {
  color: var(--text-main);
  font-weight: 800;
}

/* Content Grid */
.content-body {
  padding: 24px 48px 40px;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 40px;
}

.lesson-main {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.lesson-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Video Card */
.video-card {
  background: #000;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--border-accent);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.4s ease;
  position: relative;
}

.video-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 40px 80px -15px rgba(0, 0, 0, 0.3);
}

.video-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: calc(var(--radius-xl) - 4px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  pointer-events: none;
}

.video-container {
  width: 100%;
  height: 100%;
}

/* Progress Card */
.progress-card {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 24px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.progress-label {
  font-weight: 700;
  color: var(--secondary);
  font-size: 0.9rem;
}

.progress-percent {
  font-weight: 800;
  color: var(--primary);
}

.progress-bar-container {
  height: 10px;
  background: #f1f5f9;
  border-radius: 5px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
}

.lesson-meta-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  margin-top: 12px;
}

.meta-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.meta-label {
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding-left: 0;
  margin-left: 0;
}

.meta-value {
  font-weight: 700;
  font-size: 0.95rem;
}

/* Nav Controls */
.lesson-nav-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}

.btn-puzzle-outline,
.btn-nav-outline {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 10px !important;
  padding: 14px 28px !important;
  background: transparent !important;
  border: 1.5px solid var(--primary) !important;
  border-radius: 14px !important;
  color: var(--primary) !important;
  font-weight: 700 !important;
  cursor: pointer !important;
  transition: all 0.3s ease !important;
  text-decoration: none !important;
}

.btn-puzzle-outline:hover,
.btn-nav-outline:hover {
  background: var(--primary) !important;
  color: white !important;
  transform: translateY(-2px) !important;
}

.btn-puzzle-outline i,
.btn-nav-outline i {
  color: inherit !important;
}

.btn-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  background: var(--primary);
  color: white;
  border: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-nav:hover:not(.disabled) {
  transform: translateY(-3px);
  background: var(--primary-light);
  color: white;
}

.btn-nav.primary:hover:not(.disabled) {
  background: var(--primary-dark);
  color: white;
}

.btn-nav.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Admin Toolbar */
.admin-toolbar {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-soft);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.admin-toolbar:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.admin-label {
  color: #64748b;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

.admin-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.admin-btn {
  width: 100%;
  min-height: 48px;
  border-radius: 14px;
  background: transparent;
  border: 1.5px solid var(--border-accent);
  color: var(--secondary);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  padding: 12px 14px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.admin-btn:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateY(-3px);
}

.admin-btn-outline {
  display: flex !important;
  align-items: center !important;
  gap: 12px !important;
  padding: 12px 14px !important;
  min-height: 48px !important;
  background: transparent !important;
  border: 1.5px solid var(--border-accent) !important;
  border-radius: 14px !important;
  color: var(--primary) !important;
  font-size: 0.95rem !important;
  font-weight: 700 !important;
  text-decoration: none !important;
  transition: all 0.3s ease !important;
  width: 100% !important;
}

.admin-btn-outline:hover {
  background: var(--primary) !important;
  border-color: var(--primary) !important;
  color: white !important;
  transform: translateY(-3px) !important;
}

.admin-btn span {
  font-size: 0.95rem;
  font-weight: 700;
  color: inherit;
  white-space: nowrap;
}

/* Learning Modes */
.learning-modes-card {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-soft);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.learning-modes-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

/* Instructor Section */
.instructor-section {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 40px;
}

.instructor-avatar {
  width: 64px;
  height: 64px;
  background: #f3f4f6;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.instructor-info h4 {
  margin: 0 0 4px;
  font-size: 1.1rem;
  font-weight: 700;
}

.instructor-info p {
  margin: 0;
  color: var(--secondary);
  font-size: 0.95rem;
}

/* Learning Outcomes */
.outcomes-section {
  margin-bottom: 0px;
  margin-top: 10px;
}

.outcomes-section h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 24px;
}

.outcomes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.outcome-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.outcome-item i {
  color: #10b981;
  /* Green checkmark from image */
  font-size: 20px;
}

.outcome-item span {
  font-size: 0.95rem;
  color: #4b5563;
  font-weight: 500;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--primary);
  opacity: 0.8;
}

.help-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  color: var(--primary);
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  width: 100%;
  text-align: left;
  box-shadow: var(--shadow-soft);
}

.help-btn:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  color: var(--primary-dark);
  box-shadow: var(--shadow-lg);
  background: rgba(43, 52, 123, 0.03);
}

/* Resources / Accordion */
.resources-section {
  margin-top: 0px;
}

.modern-accordion {
  display: flex !important;
  flex-direction: column !important;
  gap: 16px !important;
}

.accordion-item {
  background: #ffffff;
  border: 1px solid var(--border-accent) !important;
  border-radius: var(--radius-xl) !important;
  margin-top: 0 !important;
  margin-bottom: 0 !important;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-soft);
}

.accordion-item:not(:first-of-type) {
  border-top: 1px solid var(--border-accent) !important;
}

.accordion-header {
  width: 100%;
  padding: 40px;
  background: none;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  text-align: left;
  transition: background 0.3s ease;
}

.accordion-header:hover {
  background: rgba(99, 102, 241, 0.03);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-left i {
  font-size: 22px;
  color: var(--primary);
}

.header-left span {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
}

.chevron {
  transition: transform 0.3s ease;
  color: var(--primary);
  font-size: 20px;
}


.accordion-item.active {
  box-shadow: var(--shadow-soft);
}

.accordion-item.active .chevron {
  transform: rotate(180deg);
  color: var(--primary);
}

.accordion-body {
  display: none;
  padding: 0 40px 40px;
  /* Matched jigsaw card padding (top is supplied by header padding) */
  border-top: none;
  /* Removed internal border */
}

.accordion-item.active .accordion-body {
  display: block;
}

.resource-toolbar {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid #f1f5f9;
}

.toolbar-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  background: var(--primary);
  border: 1.5px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  font-weight: 800;
  font-size: 1rem;
  color: white !important;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  text-decoration: none !important;
  box-shadow: var(--shadow-soft);
  opacity: 0.85;
}

.toolbar-btn-outline {
  display: inline-flex !important;
  align-items: center !important;
  gap: 12px !important;
  padding: 14px 28px !important;
  background: transparent !important;
  border: 1.5px solid var(--primary) !important;
  border-radius: 14px !important;
  font-weight: 800 !important;
  font-size: 1rem !important;
  color: var(--primary) !important;
  cursor: pointer !important;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1) !important;
  text-decoration: none !important;
  line-height: 1.2 !important;
}

.toolbar-btn-outline:hover {
  background: var(--primary) !important;
  color: white !important;
  transform: translateY(-3px) !important;
}

.toolbar-btn-outline i {
  font-size: 24px !important;
  color: inherit !important;
}

.toolbar-btn i {
  font-size: 24px;
  color: white;
}

.toolbar-btn:hover {
  opacity: 1;
  transform: translateY(-3px);
  border-color: rgba(255, 255, 255, 0.3);
}

.toolbar-btn.active {
  opacity: 1;
  background: var(--primary);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

.toolbar-btn i {
  font-size: 24px;
  color: white;
}

.resource-content {
  font-size: 1rem;
  line-height: 1.6;
  color: #475569;
  font-weight: 500;
}

.prompt-hint {
  margin-bottom: 18px;
  padding: 18px 20px;
  border-radius: 20px;
  border: 1px solid rgba(43, 52, 123, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(243, 244, 246, 0.85));
  color: var(--text-main);
  line-height: 1.7;
  font-size: 1rem;
}

.prompt-hint strong {
  color: #111827;
  font-weight: 800;
}

.modal-prompt-hint {
  margin-bottom: 16px;
}

.resource-content a {
  display: inline;
  padding: 0;
  margin: 0;
  background: none !important;
  border: none !important;
  border-radius: 0;
  box-shadow: none !important;
  color: var(--primary);
  font-weight: 700;
  text-decoration: underline;
}

.resource-content a:hover,
.resource-content a:focus,
.resource-content a:active {
  display: inline;
  background: none !important;
  color: var(--primary-dark);
  text-decoration: underline;
  transform: none !important;
}

.hero-summary a {
  display: inline;
  padding: 0;
  margin: 0;
  background: none !important;
  border: none !important;
  border-radius: 0;
  box-shadow: none !important;
  color: var(--primary);
  font-weight: 700;
  text-decoration: underline;
}

.hero-summary a:hover,
.hero-summary a:focus,
.hero-summary a:active {
  display: inline;
  background: none !important;
  color: var(--primary-dark);
  text-decoration: underline;
  transform: none !important;
}

.resource-infographic {
  margin-top: 22px;
  display: flex;
  justify-content: center;
}

.resource-infographic img {
  width: min(100%, 420px);
  border-radius: 18px;
  border: 1px solid var(--border-accent);
  box-shadow: var(--shadow-soft);
  cursor: zoom-in;
}

.resource-note {
  margin-bottom: 16px;
  font-weight: 600;
  color: var(--text-muted);
}

.lightbox-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1400;
  background: rgba(15, 23, 42, 0.82);
  backdrop-filter: blur(6px);
}

.lightbox-close {
  position: absolute;
  top: 18px;
  right: 28px;
  color: #ffffff;
  font-size: 42px;
  font-weight: 700;
  cursor: pointer;
}

.lightbox-image {
  display: block;
  max-width: min(92vw, 1200px);
  max-height: 88vh;
  margin: 4vh auto;
  border-radius: 18px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.video-admin-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 24px 28px;
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.94));
  box-shadow: var(--shadow-soft);
}

.video-setting-panel {
  color: var(--text-main) !important;
}

.video-setting-form {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0;
}

.video-setting-label {
  margin: 0;
  font-weight: 700;
  color: var(--text-main);
}

.video-setting-select.form-select {
  width: auto !important;
  min-width: 116px;
  border-radius: 14px;
  border: 1px solid var(--border-accent);
  padding: 10px 40px 10px 14px;
  font-weight: 700;
  color: var(--text-main);
  box-shadow: none;
}

.video-setting-select.form-select:focus {
  border-color: rgba(43, 52, 123, 0.28);
  box-shadow: 0 0 0 4px rgba(43, 52, 123, 0.08);
}

.video-setting-submit,
.video-build-btn {
  background: var(--primary);
  border: none;
  color: white;
  border-radius: 14px;
  padding: 12px 24px;
  font-weight: 800;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.video-setting-submit:hover,
.video-build-btn:hover {
  background: var(--primary-light);
  color: white;
  transform: translateY(-2px);
}

.video-build-form {
  margin: 0;
}

.video-script-card {
  margin-top: 4px;
}

.video-script-card .accordion-header {
  padding: 28px 32px;
}

.video-script-card .header-left span {
  font-size: 1.2rem;
  font-weight: 800;
}

.asset-sections {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.asset-card {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-soft);
}

.asset-card-header h3 {
  margin: 0 0 20px;
  font-size: 1.5rem;
  color: var(--primary);
}

.asset-card-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.asset-build-form {
  display: flex;
  align-items: center;
  gap: 12px;
}


.asset-actions-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.asset-thumb-caption {
  font-weight: 700;
  color: var(--text-muted);
}

.asset-empty {
  padding: 20px 22px;
  border-radius: 16px;
  background: rgba(59, 130, 246, 0.05);
  border: 1px solid rgba(59, 130, 246, 0.1);
  color: #1e40af;
  font-weight: 600;
}

.revision-quiz-video {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: 20px;
  border: 1px solid var(--border-accent);
  background: #000000;
  box-shadow: var(--shadow-soft);
  aspect-ratio: 16 / 9;
}

.revision-quiz-video iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

/* Jigsaw */
.puzzle-section {
  margin-top: 0;
}

.puzzle-card {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-soft);
  max-width: none;
  width: 100%;
  margin-left: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.puzzle-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.puzzle-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.puzzle-header i {
  font-size: 32px;
  color: var(--primary);
}

.puzzle-header h3 {
  margin: 0;
  font-size: 1.5rem;
}

.puzzle-container {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 920px;
}

.question {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0;
  max-width: 720px;
}

.letters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(54px, 54px));
  justify-content: start;
  gap: 12px;
  margin-bottom: 0;
  max-width: 100%;
}

.letter-tile {
  width: 54px;
  height: 54px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.92));
  border: 1.5px solid var(--border-accent);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.05);
}

.letter-tile:hover {
  transform: translateY(-3px) scale(1.03);
  border-color: var(--primary);
  box-shadow: 0 14px 26px rgba(43, 52, 123, 0.12);
  color: var(--primary);
}

.letter-tile.selected {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  border-color: var(--primary);
  transform: scale(0.96);
  opacity: 0.72;
}

.answer-space {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(54px, 54px));
  justify-content: start;
  gap: 12px;
  margin-bottom: 0;
  min-height: 54px;
}

.answer-tile {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  border: 1.5px dashed rgba(43, 52, 123, 0.28);
  background: rgba(43, 52, 123, 0.03);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.28rem;
  font-weight: 800;
  color: var(--primary);
  transition: all 0.3s ease;
}

.puzzle-actions {
  display: flex;
  gap: 16px;
  justify-content: flex-start;
  margin-top: 20px;
}

.btn-puzzle {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 800;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-puzzle.primary {
  background: var(--primary-dark);
}

.btn-puzzle:not(.primary) {
  background: var(--bg-card);
  border: 1.5px solid var(--primary);
  color: var(--primary);
}

.btn-puzzle:hover {
  transform: translateY(-5px) scale(1.04);
  background: var(--primary-light);
  color: white;
}

.btn-puzzle i {
  font-size: 22px;
}

.puzzle-status {
  margin-top: 24px;
  text-align: center;
  font-weight: 700;
  min-height: 24px;
  transition: all 0.3s ease;
  padding: 12px;
  border-radius: var(--radius-md);
  opacity: 0;
  transform: translateY(10px);
}

.puzzle-status.success {
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
  opacity: 1;
  transform: translateY(0);
}

.puzzle-status.error {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
  opacity: 1;
  transform: translateY(0);
}

/* Status Pill & Meta Status */
.status-pill,
.meta-value {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 700;
  transition: all 0.3s ease;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  box-shadow: var(--shadow-soft);
  white-space: nowrap;
}

.stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(43, 52, 123, 0.05);
  border: 1px solid rgba(43, 52, 123, 0.1);
  border-radius: 999px;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.9rem;
  white-space: nowrap;
}

.stat-pill i {
  font-size: 1.15rem;
  display: flex;
  align-items: center;
}

.meta-value#attendance-status {
  min-width: 220px;
}

#attendance-status .completed,
#attendance-status .in-progress {
  background: none !important;
  padding: 0 !important;
  color: inherit !important;
  font-weight: inherit !important;
  display: inline !important;
  border: none !important;
  box-shadow: none !important;
}

.status-indicator-completed {
  color: #059669;
}

#attendance-status:has(.completed) {
  background: rgba(16, 185, 129, 0.05);
  border-color: rgba(16, 185, 129, 0.2);
}

.suggestion-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: #ffffff;
  border: 1px solid var(--border-accent);
  border-radius: 18px;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: default;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}

.suggestion-item i {
  font-size: 1.25rem;
  color: var(--primary);
  opacity: 0.7;
  transition: transform 0.3s ease;
}

.suggestion-item:hover {
  transform: translateX(6px);
  border-color: var(--primary);
  color: var(--primary);
  background: #ffffff;
  box-shadow: 0 8px 20px rgba(43, 52, 123, 0.08);
}

.suggestion-item:hover i {
  transform: scale(1.2);
  opacity: 1;
}

/* Premium Learning Mode Navigation */
.learning-modes-container {
  margin: 20px 0;
  width: 100%;
  overflow: hidden;
}

.learning-modes-scroll {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 8px 4px 16px;
}

.learning-modes-scroll::-webkit-scrollbar {
  display: none;
}

.mode-chip {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 999px;
  color: #4b5563;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.85rem;
  white-space: nowrap;
  transition: all 0.2s ease;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.mode-chip span {
  display: inline-block !important;
}

.mode-chip i {
  display: none;
}

.mode-chip:hover {
  background: #f1f5f9;
  border-color: #cbd5e1;
  color: #1e293b;
}

.mode-chip.active {
  background: #2b347b !important;
  color: #ffffff !important;
  border-color: #2b347b !important;
  box-shadow: 0 4px 14px rgba(43, 52, 123, 0.25);
}

.mode-chip.active i {
  display: none;
}

.mode-chip.outline {
  background: transparent;
  border: 1.5px dashed var(--border-accent);
}

.mode-chip.outline:hover {
  border-style: solid;
  border-color: var(--primary);
}

.mode-divider {
  width: 1.5px;
  height: 28px;
  background: var(--border-accent);
  margin: 0 6px;
  flex-shrink: 0;
  opacity: 0.6;
}

/* Fix for mobile navigation chips */
@media (max-width: 768px) {
  .learning-modes-scroll {
    padding: 8px 16px 20px;
    gap: 10px;
  }

  .mode-chip {
    padding: 8px 18px;
    font-size: 0.85rem;
  }

  .mode-chip i {
    font-size: 18px;
  }
}

/* Premium Tutoring Session UI Refinements */
.glass-container {
  background: #ffffff;
  border: none !important;
  border-radius: 36px;
  padding: 0 !important;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
  /* Extra soft shadow instead of border */
  overflow: hidden;
}

.session-footer-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 32px;
  background: rgba(255, 255, 255, 0.75);
  border: none;
  border-radius: 20px;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(12px);
}

.footer-label {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.08em;
  margin-bottom: 2px;
}

.footer-value {
  font-weight: 850;
  color: #111827;
  font-size: 1.05rem;
}

.avatar-sm.premium-border {
  border: 2px solid white;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  overflow: hidden;
}

.video-cinema-wrapper {
  position: relative;
  border-radius: 0;
  /* Clear edges to fill the container corner */
  overflow: hidden;
  background: #ffffff;
  width: 100%;
  line-height: 0;
  height: 740px;
  /* Default desktop height */
  /* Remove potential bottom gap */
}

.video-overlay-status {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 1000;
  pointer-events: none;
  /* Ensure it doesn't block iframe clicks */
}

.stat-pill-premium {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  background: white;
  border: none;
  border-radius: 12px;
  color: var(--primary);
  font-size: 0.65rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  box-shadow: var(--shadow-soft);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }

  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
  }

  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

.transcript-card-premium {
  background: #ffffff;
  border: 1.5px solid rgba(43, 52, 123, 0.1) !important;
  border-radius: 24px;
  height: 100%;
  min-height: 800px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.transcript-header {
  padding: 24px 32px;
  border-bottom: 1.5px solid rgba(43, 52, 123, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #ffffff;
}

.transcript-header span {
  font-weight: 850;
  font-size: 1rem;
  color: #111827;
}

.transcript-badge {
  font-size: 0.65rem;
  font-weight: 800;
  padding: 4px 10px;
  background: rgba(43, 52, 123, 0.08);
  color: var(--primary);
  border-radius: 99px;
  letter-spacing: 0.05em;
}

.transcript-scroll {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: linear-gradient(to bottom, #ffffff, #fafafa);
}

.ai-processing-animation {
  display: flex;
  justify-content: center;
  gap: 4px;
}

.ai-processing-animation span {
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  animation: ai-bounce 1.4s infinite ease-in-out both;
}

.ai-processing-animation span:nth-child(1) {
  animation-delay: -0.32s;
}

.ai-processing-animation span:nth-child(2) {
  animation-delay: -0.16s;
}

@keyframes ai-bounce {

  0%,
  80%,
  100% {
    transform: scale(0);
    opacity: 0.3;
  }

  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Enhanced Chat Bubbles */
.chat-bubble {
  max-width: 85%;
  padding: 14px 18px;
  border-radius: 20px;
  font-size: 0.95rem;
  line-height: 1.5;
  position: relative;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.02);
}

.chat-bubble.bot {
  background: #f3f4f6;
  color: #1f2937;
  border-top-left-radius: 4px;
  border: 1px solid rgba(0, 0, 0, 0.03);
}

.chat-bubble.user {
  background: var(--primary);
  color: white;
  border-top-right-radius: 4px;
  box-shadow: 0 4px 12px rgba(43, 52, 123, 0.15);
}

/* Cinema Mode Video Container */
#dailyContainer {
  border-radius: 28px;
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-premium);
  transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
  border: 1px solid rgba(43, 52, 123, 0.08);
}

#chatContainer::-webkit-scrollbar {
  width: 6px;
}

#chatContainer::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: 10px;
}

.chat-bubble {
  max-width: 85%;
  padding: 14px 20px;
  border-radius: 20px;
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: 2px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
  position: relative;
}

.chat-bubble.bot {
  background: white;
  color: var(--text-main);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--border-accent);
}

.chat-bubble.user {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  border-bottom-right-radius: 4px;
}

/* Session Timer & Controls */
.session-timer-pill {
  background: rgba(255, 255, 255, 0.9);
  padding: 8px 18px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--primary);
  box-shadow: var(--shadow-soft);
  border: 1.5px solid var(--border-accent);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* AI Tutor Landing Page Semantic Classes */
.lesson-nav-bar {
  max-width: 1050px;
  margin-bottom: 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.btn-nav-prev {
  height: 48px;
  min-width: 140px;
  background: white !important;
  border: 1.5px solid var(--border-accent) !important;
  color: var(--text-main) !important;
}

.btn-nav-next {
  height: 48px;
  min-width: 140px;
}

.btn-nav-guide {
  height: 48px;
  min-width: 140px;
  background: rgba(59, 130, 246, 0.04) !important;
  border: 1.5px solid rgba(59, 130, 246, 0.1) !important;
  color: var(--primary) !important;
}

.tutor-intro-card {
  max-width: 1050px;
  border-radius: 32px;
}

.tutor-avatar-frame {
  width: 150px;
  height: 150px;
  border-radius: 32px;
  overflow: hidden;
  box-shadow: var(--shadow-premium);
  border: 3px solid #ffffff;
  flex-shrink: 0;
}

.tutor-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tutor-info-box {
  flex: 1;
}

.tutor-title {
  font-weight: 850;
  color: #111827;
  margin: 0;
  font-size: 2.4rem;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.tutor-subtitle {
  font-weight: 600;
  font-size: 1.1rem;
  opacity: 0.7;
  margin-top: 0.5rem;
}

.tutor-hint-box {
  background: rgba(248, 250, 252, 0.8);
  border: 1px solid var(--border-accent);
  border-radius: 24px;
  padding: 1.5rem;
}

.tutor-action-box {
  height: 100%;
  border-radius: 24px;
  background: white;
  border: 1px solid var(--border-accent);
  padding: 1.5rem;
}

.stat-pill-mini {
  padding: 4px 12px;
  font-size: 0.8rem;
}

.btn-start-session {
  width: 100%;
  justify-content: center;
  padding: 18px;
}

.quota-alert {
  border-radius: 16px;
  font-weight: 700;
  border: none;
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

.preparing-modal-content {
  background: rgba(255, 255, 255, 0.95);
  border: 0;
  padding: 1.5rem;
  text-align: center;
}


/* Ensure the AJAX loaded content also gets styled */
#attendance-status {
  display: inline-flex;
  align-items: center;
}

.status-pill::before,
#attendance-status::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #94a3b8;
  box-shadow: 0 0 10px #94a3b8;
  animation: statusPulse 2s infinite;
  flex-shrink: 0;
}

#attendance-status:has(.completed)::before {
  background: #10b981;
  box-shadow: 0 0 10px #10b981;
}

@keyframes statusPulse {
  0% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(1.4);
  }

  100% {
    opacity: 1;
    transform: scale(1);
  }
}

.meta-value {
  color: var(--text-main);
}

/* Quiz */
.quiz-section {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}

.quiz-launch-btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: 20px 48px;
  border-radius: var(--radius-lg);
  font-size: 1.25rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.quiz-launch-btn:hover {
  transform: translateY(-4px);
}

/* Premium Modal Redesign (Nitchly Aesthetic) */
.modal-content {
  border-radius: 28px !important;
  border: 1.5px solid rgba(226, 232, 240, 0.7) !important;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15) !important;
  background: rgba(255, 255, 255, 0.98) !important;
  backdrop-filter: blur(8px) !important;
  overflow: hidden !important;
}

.modal-header {
  padding: 24px 32px !important;
  border-bottom: 1px solid rgba(226, 232, 240, 0.5) !important;
  background: transparent !important;
  align-items: center !important;
}

.modal-title {
  font-weight: 800 !important;
  font-size: 1.5rem !important;
  color: var(--primary) !important;
  letter-spacing: -0.02em !important;
}

.modal-body {
  padding: 32px !important;
}

.modal-footer {
  padding: 24px 32px !important;
  background: #f8fafc !important;
  border-top: 1px solid rgba(226, 232, 240, 0.5) !important;
  display: flex !important;
  gap: 12px !important;
  justify-content: flex-end !important;
}

.btn-close {
  background-color: var(--bg-hover) !important;
  padding: 12px !important;
  border-radius: 50% !important;
  opacity: 0.8 !important;
  transition: all 0.2s ease !important;
}

.btn-close:hover {
  opacity: 1 !important;
  transform: rotate(90deg) !important;
}

/* Keep Quiz Modal specific header if it was intentional */
.quiz-modal-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
  border-bottom: none !important;
  color: white !important;
}

.quiz-modal-header .modal-title,
.quiz-modal-header .quiz-modal-kicker {
  color: white !important;
}

.quiz-modal-header .btn-close {
  filter: invert(1) brightness(2) !important;
}

/* Base Buttons Re-Standardization (Solid Indigo) */
.btn-primary,
.btn-search-premium,
.btn-nav,
.toolbar-btn,
.admin-btn,
.btn-puzzle:not(.primary) {
  background: var(--primary) !important;
  border: none !important;
  color: white !important;
  border-radius: 12px !important;
  font-weight: 800 !important;
  transition: all 0.3s ease !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none !important;
}

.btn-primary:hover,
.btn-search-premium:hover,
.btn-nav:hover:not(.disabled),
.toolbar-btn:hover,
.admin-btn:hover,
.btn-puzzle:hover {
  background: var(--primary-light) !important;
  transform: translateY(-3px) !important;
  color: white !important;
  text-decoration: none !important;
}

.btn-outline-primary {
  border: 2px solid var(--primary) !important;
  color: var(--primary) !important;
  background: transparent !important;
  font-weight: 700 !important;
  transition: all 0.3s ease !important;
}

.btn-outline-primary:hover {
  background: var(--primary) !important;
  color: white !important;
  transform: translateY(-2px);
}

.btn-outline-secondary {
  border: 1.5px solid var(--border-accent) !important;
  color: var(--secondary) !important;
  background: transparent !important;
  font-weight: 700 !important;
}

.quiz-modal-actions {
  padding: 24px 32px !important;
  background: #f8fafc !important;
  border-top: 1px solid rgba(226, 232, 240, 0.5) !important;
  display: flex !important;
  gap: 12px !important;
  justify-content: flex-end !important;
  margin: 28px -28px -28px -28px !important;
  border-bottom-left-radius: 28px !important;
  border-bottom-right-radius: 28px !important;
}

.quiz-form {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.quiz-modal-intro {
  margin: 0;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 700px;
}

.quiz-content {
  display: flex;
  flex-direction: column;
  gap: 18px;
  color: var(--text-main);
}

.quiz-content>* {
  max-width: 100%;
}

.quiz-content p,
.quiz-content li,
.quiz-content label,
.quiz-content span,
.quiz-content div {
  color: inherit;
}

.quiz-content p {
  margin: 0 0 10px;
  line-height: 1.7;
}

.quiz-content ul,
.quiz-content ol {
  margin: 0;
  padding-left: 20px;
}

.quiz-content input[type="text"],
.quiz-content input[type="number"],
.quiz-content textarea,
.quiz-content select {
  width: 100%;
  border: 1px solid var(--border-accent);
  border-radius: 14px;
  padding: 12px 14px;
  font: inherit;
  color: var(--text-main);
  background: rgba(248, 250, 252, 0.8);
}

.quiz-content input[type="text"]:focus,
.quiz-content input[type="number"]:focus,
.quiz-content textarea:focus,
.quiz-content select:focus {
  outline: none;
  border-color: rgba(43, 52, 123, 0.35);
  box-shadow: 0 0 0 4px rgba(43, 52, 123, 0.08);
}

.quiz-content input[type="radio"],
.quiz-content input[type="checkbox"] {
  accent-color: var(--primary);
  transform: translateY(1px);
  margin-right: 10px;
}

.quiz-content label {
  display: inline-flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.6;
  font-weight: 600;
}

.quiz-content table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid var(--border-accent);
  border-radius: 16px;
}

.quiz-content th,
.quiz-content td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
}

.quiz-content tr:last-child td {
  border-bottom: none;
}

.quiz-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding-top: 4px;
}

.quiz-modal-actions .btn {
  min-width: 150px;
  padding: 12px 22px;
  border-radius: 14px;
  font-weight: 800;
}

/* Footer */
.modern-footer {
  background: #ffffff;
  border-top: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 72px 0 40px;
  margin-left: 0;
  width: 100%;
  margin-top: 60px;
  position: relative;
  overflow: hidden;
}

.footer-content-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 60px;
}

.modern-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  opacity: 0.1;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 56px;
  margin-bottom: 42px;
  position: relative;
  z-index: 1;
}

.footer-brand p {
  color: var(--text-muted);
  max-width: 450px;
  margin-top: 24px;
  line-height: 1.8;
  font-size: 1.05rem;
}

.footer-kpis {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.kpi-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: rgba(15, 23, 42, 0.02);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.kpi-chip i {
  font-size: 16px;
  color: var(--primary);
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.footer-group h4 {
  margin: 0 0 20px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--primary);
  font-weight: 800;
}

.footer-group a {
  display: block;
  color: var(--text-muted);
  text-decoration: none;
  margin-bottom: 12px;
  transition: all 0.3s ease;
  font-weight: 600;
  font-size: 0.95rem;
}

.footer-group a:hover {
  color: var(--primary);
  transform: translateX(4px);
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.social-link {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.2s ease;
}

.social-link:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.modal-footer {
  border-top: 1px solid var(--border-color);
  padding: 20px 32px;
  background: #f8fafc;
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* Loading & State Utilities (Consistent with Nitchly) */
#mark-attendance-btn:disabled,
#mark-attendance-btn[disabled] {
  background: var(--primary) !important;
  border-color: var(--primary) !important;
  color: #ffffff !important;
  opacity: 1;
  box-shadow: none !important;
}

.btn-loading {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--primary) !important;
  border-color: var(--primary) !important;
  color: #ffffff !important;
  box-shadow: none !important;
}

.btn-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: buttonSpin 0.7s linear infinite;
  flex-shrink: 0;
}

@keyframes buttonSpin {
  to {
    transform: rotate(360deg);
  }
}

.modal-dialog.modal-xl {
  max-width: min(1100px, calc(100vw - 32px));
}

.modal-dialog.modal-xl .modal-content {
  max-height: calc(100vh - 32px);
}

.modal-dialog.modal-xl .modal-body {
  overflow-y: auto;
  padding: 20px 24px;
}

.tinymce-editor {
  min-height: 320px;
}

.modal-dialog.modal-xl .tox.tox-tinymce {
  min-height: 320px !important;
  max-height: calc(100vh - 220px) !important;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-legal {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-legal a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.85rem;
}

.footer-legal a:hover {
  color: var(--primary);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: rgba(var(--p-h), var(--p-s), var(--p-l), 0.05);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
}

.status-dot {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 10px #10b981;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 1;
  }

  50% {
    transform: scale(1.5);
    opacity: 0.5;
  }

  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Mobile */
@media (max-width: 1024px) {
  .content-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .sidebar {
    left: -280px;
    padding: 16px !important;
    top: 60px !important;
    height: calc(100dvh - 60px) !important;
    overflow-y: auto;
    position: fixed !important;
  }

  .sidebar.active {
    left: 0;
  }

  .sidebar .logo-container {
    margin-bottom: 20px;
    margin-top: 0;
  }

  .sidebar .brand-logo {
    width: 100px;
    height: 100px;
  }

  .nav-item {
    padding: 10px 14px;
    gap: 10px;
    font-size: 0.9rem;
  }

  .main-content {
    margin-left: 0;
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
  }

  .mobile-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed !important;
    top: 0 !important;
    left: 0;
    right: 0;
    height: 60px;
    background: #ffffff;
    /* Solid white for better sidebar contrast */
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    z-index: 1200;
    /* Above sidebar */
    padding: 0 16px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  }

  body.chapter-preview-theme {
    padding-top: 60px;
  }

  .nav-toggler {
    background: none;
    border: none;
    color: var(--text-main);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
  }

  .brand-logo-small {
    width: 100px;
    height: 40px;
    background-image: url("/images/brand-logo.png");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: left center;
  }

  .mobile-logout {
    color: #ef4444;
    text-decoration: none;
  }

  .hero-section {
    padding: 0;
    margin-bottom: 0;
  }

  .hero-kicker {
    display: flex;
    flex-wrap: wrap;
  }

  .hero-section h1 {
    font-size: 3rem;
  }

  .hero-summary {
    font-size: 1.1rem;
  }

  .content-body {
    padding: 28px 20px 64px;
  }

  .progress-card {
    padding: 24px;
  }

  .modern-footer {
    margin-left: 0;
    padding: 56px 0 40px;
  }

  .footer-content-wrapper {
    padding: 0 28px;
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .sidebar {
    width: min(300px, 86vw);
    left: -100%;
    top: 60px;
    height: calc(100dvh - 60px);
    padding: 20px 16px;
  }

  .sidebar.active {
    left: 0;
  }

  .hero-section {
    padding: 0;
    overflow: hidden;
    width: 100%;
  }

  .hero-section h1 {
    font-size: 2.1rem;
    line-height: 1.02;
    margin-bottom: 20px;
  }

  .hero-summary {
    font-size: 1rem;
  }

  .hero-kicker {
    font-size: 0.84rem;
    gap: 8px;
  }

  .content-body {
    padding: 20px 12px 40px;
  }

  .lesson-main {
    gap: 24px;
  }

  .video-card {
    border-radius: 20px;
  }

  .video-card::after {
    border-radius: 16px;
  }

  .progress-card,
  .learning-modes-card,
  .admin-toolbar,
  .help-btn,
  .puzzle-card {
    padding: 16px;
  }

  .lesson-meta-grid {
    gap: 18px;
  }

  .lesson-nav-controls {
    grid-template-columns: 1fr;
  }

  .accordion-header {
    padding: 18px 16px;
  }

  .header-left {
    gap: 10px;
  }

  .header-left span {
    font-size: 1rem;
  }

  .accordion-body {
    padding: 0 16px 18px;
  }

  .resource-toolbar {
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 16px;
    padding-bottom: 14px;
  }

  .toolbar-btn {
    width: 100%;
    justify-content: center;
  }

  .resource-content {
    font-size: 0.98rem;
    line-height: 1.6;
  }

  .prompt-hint {
    padding: 16px;
    font-size: 0.95rem;
  }

  .video-admin-panel {
    padding: 16px;
  }

  .video-setting-form {
    align-items: stretch;
  }

  .video-setting-select.form-select,
  .video-setting-submit,
  .video-build-btn {
    width: 100% !important;
  }

  .video-script-card .accordion-header {
    padding: 18px 16px;
  }

  .video-script-card .header-left span {
    font-size: 1rem;
  }

  .asset-card {
    padding: 16px;
  }

  .asset-card-header h3 {
    font-size: 1.2rem;
    margin-bottom: 16px;
  }

  .asset-thumb {
    max-width: 100%;
  }

  .puzzle-card {
    padding: 14px;
  }

  .puzzle-header {
    margin-bottom: 8px;
    gap: 10px;
  }

  .puzzle-container {
    gap: 8px;
  }

  .puzzle-actions {
    margin-top: 14px;
    gap: 8px;
  }

  .question {
    font-size: 0.95rem;
  }

  .btn-puzzle {
    padding: 10px 18px;
    font-size: 0.85rem;
  }

  .letters-grid,
  .answer-space {
    gap: 8px;
    grid-template-columns: repeat(auto-fit, minmax(44px, 44px));
  }

  .letter-tile,
  .answer-tile {
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
  }

  .quiz-launch-btn {
    width: 100%;
    justify-content: center;
    padding: 16px 20px;
    font-size: 1rem;
  }

  .quiz-modal-body {
    padding: 18px 16px;
  }

  .quiz-modal-actions {
    flex-direction: column-reverse;
  }

  .quiz-modal-actions .btn {
    width: 100%;
    min-width: 0;
  }

  .footer-content-wrapper {
    padding: 0 16px;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding-top: 24px;
  }

  .footer-legal {
    gap: 12px;
  }
}

@media (max-width: 480px) {
  .hero-section h1 {
    font-size: 1.8rem;
  }

  .lesson-badge {
    padding: 7px 12px;
    font-size: 0.66rem;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
  }

  .outcomes-grid {
    grid-template-columns: 1fr;
  }

  .letter-tile,
  .answer-tile {
    width: 42px;
    height: 42px;
    font-size: 1.05rem;
    border-radius: 12px;
  }

  .answer-space {
    min-height: 42px;
  }

  .header-left span {
    font-size: 0.95rem;
  }

  .header-left i {
    font-size: 20px;
  }
}

/* Admin visibility control for Student View */
body.student-view .admin-roles,
body.student-view .admin-toolbar {
  display: none !important;
}

/* Premium Modal Styling */

/* Page-specific overrides to hide legacy UI */
.header,
.side-bar,
.content,
#loading {
  display: none !important;
}

body.chapter-preview-theme {
  overflow-x: hidden !important;
  position: relative;
  width: 100%;
  max-width: 100%;
  -webkit-tap-highlight-color: transparent;
}

body.chapter-preview-theme {
  padding-top: 0;
  /* Resetting bootstrap/other defaults */
}

#userHelpModal .modal-dialog {
  max-width: 860px;
}

#userHelpModal .modal-content {
  border: 1px solid var(--border-accent);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background:
    linear-gradient(180deg, rgba(43, 52, 123, 0.05) 0%, rgba(255, 255, 255, 0.96) 26%),
    #ffffff;
}

#userHelpModal .modal-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-bottom: none;
  padding: 20px 24px;
}

#userHelpModal .modal-title {
  color: #ffffff !important;
  font-weight: 800;
  letter-spacing: -0.02em;
}

#userHelpModal .btn-close {
  filter: invert(1) brightness(2);
  opacity: 0.95;
}

#userHelpModal .modal-body {
  padding: 28px 28px 22px;
  color: var(--text-main);
  font-size: 1.02rem;
  line-height: 1.8;
}

#userHelpModal .modal-body .mb-3 {
  margin-bottom: 0 !important;
}

#userHelpModal .modal-body b {
  display: inline-block;
  color: var(--primary-dark);
  font-size: 1.05rem;
  margin-bottom: 6px;
}

#userHelpModal .modal-footer {
  background: #f8fafc;
  border-top: 1px solid var(--border-color);
  padding: 18px 24px 22px;
}

#userHelpModal .btn-secondary {
  background: var(--primary);
  border: none;
  color: #ffffff;
  font-weight: 800;
  border-radius: 12px;
  padding: 12px 22px;
}

#userHelpModal .btn-secondary:hover,
#userHelpModal .btn-secondary:focus,
#userHelpModal .btn-secondary:active {
  background: var(--primary-dark) !important;
  box-shadow: none !important;
}

/* =========================================
   SEARCH PAGE UI OVERRIDES
   ========================================= */
.search-page-theme .search-alert {
  width: 100%;
}

@media (min-width: 1024px) {

  .search-page-theme .search-alert,
  .search-form-premium {
    width: 60%;
    margin-left: auto;
    margin-right: auto;
    max-width: none;
  }
}

.search-page-theme .hero-section {
  padding: 80px 20px 40px;
  background: transparent;
  margin-bottom: 40px;
  border: none;
  text-align: center;
  width: 100%;
}

.search-page-theme .hero-section h1 {
  margin: 0 0 15px;
  font-size: 3.5rem;
  font-weight: 800;
  color: #1f2937;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 12px;
  line-height: 1.1;
}

.search-page-theme .hero-section h1 .highlight {
  font-size: 1.8rem;
  color: #2b347b;
  font-weight: 700;
}

.search-page-theme .hero-section p {
  color: #6b7280;
  margin: 0;
  font-weight: 400;
  font-size: 1.3rem;
}

.search-form-premium {
  position: relative;
  width: 100%;
  margin: 40px auto 0;
  display: block;
}

.search-form-premium .search-icon {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: #9ca3af;
  font-size: 1.4rem;
  pointer-events: none;
}

.search-form-premium input {
  width: 100%;
  padding: 18px 20px 18px 56px;
  border: 1px solid rgba(229, 231, 235, 0.5);
  border-radius: 12px;
  font-size: 1.05rem;
  background: white;
  color: #1f2937;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.02);
  transition: all 0.3s ease;
}

.search-form-premium input::placeholder {
  color: #9ca3af;
  font-weight: 400;
}

.search-form-premium input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(43, 52, 123, 0.1);
}

.courses-grid-premium {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 640px) {
  .courses-grid-premium {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .courses-grid-premium {
    grid-template-columns: repeat(4, 1fr);
  }
}

.course-card-premium {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.course-card-premium:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(43, 52, 123, 0.2);
}

.course-thumb-premium {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: #f1f5f9;
  border-bottom: 1px solid var(--border-accent);
}

.course-details-premium {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-grow: 1;
}

.course-details-premium h3 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.4;
}

.tenant-badge {
  display: inline-block;
  padding: 6px 12px;
  background: rgba(43, 52, 123, 0.06);
  color: var(--primary);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: auto;
}

/* Search Hero Section */
.search-hero {
  padding: 60px 24px 40px;
  text-align: center;
  background:
    radial-gradient(circle at 15% 50%, rgba(43, 52, 123, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 85% 30%, rgba(59, 130, 246, 0.05) 0%, transparent 40%),
    #ffffff;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.search-hero-content {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 10;
}

.search-hero h1 {
  font-size: 3.8rem;
  font-weight: 850;
  color: var(--secondary);
  margin-bottom: 20px;
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.search-hero h1 span.highlight {
  color: var(--primary);
  background: linear-gradient(120deg, var(--primary) 0%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.search-hero p,
.switchboard-sublead {
  font-size: 1.25rem;
  color: var(--text-muted);
  font-weight: 500;
  line-height: 1.6;
}

.search-hero p {
  margin-bottom: 24px;
}

/* Switchboard: “Other things you can do.” — more space above than below feature grid */
.switchboard-other-things {
  margin-top: 48px;
}

.switchboard-other-things .switchboard-sublead {
  margin-bottom: 0;
}

.switchboard-features-section {
  margin-top: 10px;
}

.search-container-premium {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  background: white;
  border: 1.5px solid rgba(226, 232, 240, 0.8);
  border-radius: 24px;
  padding: 8px 8px 8px 28px;
  box-shadow: 0 20px 40px -10px rgba(15, 23, 42, 0.08);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.search-input-wrapper:focus-within {
  border-color: var(--primary);
  box-shadow: 0 25px 50px -12px rgba(43, 52, 123, 0.15);
  transform: translateY(-4px);
}

.search-input-wrapper i.search-icon {
  color: #94a3b8;
  margin-right: 18px;
  font-size: 28px;
  transition: color 0.3s ease;
}

.search-input-wrapper:focus-within i.search-icon {
  color: var(--primary);
}

.search-input-wrapper input {
  flex: 1;
  border: none;
  background: none;
  padding: 16px 0;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
  outline: none;
}

.search-input-wrapper input::placeholder {
  color: #94a3b8;
  font-weight: 500;
}

.btn-search-premium {
  background: var(--primary);
  color: white;
  border: none;
  padding: 0 32px;
  height: 56px;
  border-radius: 18px;
  font-weight: 800;
  font-size: 1.05rem;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-left: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-decoration: none !important;
}

.btn-search-premium:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px var(--primary-glow);
  color: white;
}

/* Results Section Polishing */
.search-results-container {
  padding: 60px 0;
  background: #f8fafc;
  min-height: 400px;
}

.search-results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 40px;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 40px;
}

.course-search-card {
  background: white;
  border-radius: 28px;
  border: 1px solid var(--border-accent);
  overflow: hidden;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-soft);
  position: relative;
}

.course-search-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 28px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.course-search-card:hover {
  /* transform: translateY(-8px) scale(1.02); */
  box-shadow: var(--shadow-lg), 0 20px 40px -10px rgba(43, 52, 123, 0.1);
  border-color: rgba(43, 52, 123, 0.2);
}

.course-search-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.course-search-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

/* .course-search-card:hover .course-search-thumb img {
  transform: scale(1.1);
} */

.course-search-content {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.course-search-id {
  font-size: 0.85rem;
  font-weight: 850;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  opacity: 0.8;
}

.course-search-title {
  font-size: 1.4rem;
  font-weight: 850;
  color: var(--primary);
  line-height: 1.3;
  margin: 0;
  letter-spacing: -0.01em;
}

.course-search-meta {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.course-stat {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1;
}

.course-stat i {
  font-size: 20px;
  color: var(--secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.course-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  background: rgba(43, 52, 123, 0.08);
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none !important;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  line-height: 1;
}

.course-action-btn:hover {
  transform: translateY(-2px);
  background: var(--primary);
  color: white;
  text-decoration: none !important;
}

.course-action-btn i {
  font-size: 18px;
  transition: transform 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.course-action-btn:hover i {
  transform: translateX(4px);
}

/* Dashboard Feature Cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

.feature-card {
  background: white;
  border-radius: 24px;
  padding: 40px;
  border: 1px solid var(--border-accent);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-decoration: none;
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.feature-icon-wrapper {
  width: 64px;
  height: 64px;
  background: rgba(43, 52, 123, 0.06);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  transition: all 0.3s ease;
}

.feature-card:hover .feature-icon-wrapper {
  background: var(--primary);
  color: white;
  transform: scale(1.1) rotate(-5deg);
}

.feature-icon-wrapper i {
  font-size: 32px;
}

/* Feature Card Color Variations */
.feature-card.color-blue .feature-icon-wrapper {
  color: #3b82f6;
  background: rgba(59, 130, 246, 0.1);
}
.feature-card.color-blue:hover .feature-icon-wrapper {
  background: #3b82f6;
  color: white;
}

.feature-card.color-purple .feature-icon-wrapper {
  color: #8b5cf6;
  background: rgba(139, 92, 246, 0.1);
}
.feature-card.color-purple:hover .feature-icon-wrapper {
  background: #8b5cf6;
  color: white;
}

.feature-card.color-green .feature-icon-wrapper {
  color: #10b981;
  background: rgba(16, 185, 129, 0.1);
}
.feature-card.color-green:hover .feature-icon-wrapper {
  background: #10b981;
  color: white;
}

.feature-card.color-orange .feature-icon-wrapper {
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.1);
}
.feature-card.color-orange:hover .feature-icon-wrapper {
  background: #f59e0b;
  color: white;
}

.feature-card.color-pink .feature-icon-wrapper {
  color: #ec4899;
  background: rgba(236, 72, 153, 0.1);
}
.feature-card.color-pink:hover .feature-icon-wrapper {
  background: #ec4899;
  color: white;
}

/* Premium Boxed Icons */
.icon-box {
  width: 48px;
  height: 48px;
  background: rgba(43, 52, 123, 0.06);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.icon-box-sm {
  width: 38px;
  height: 38px;
  background: rgba(43, 52, 123, 0.06);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.icon-box-sm i {
  font-size: 20px;
}

.icon-box i {
  font-size: 24px;
}

.accordion-header:hover .icon-box-sm,
.asset-card:hover .icon-box {
  background: var(--primary);
  color: white;
  transform: scale(1.05);
}

.feature-card-content h3 {
  margin: 0 0 12px;
  font-size: 1.4rem;
  font-weight: 850;
  color: var(--secondary);
  letter-spacing: -0.02em;
}

.feature-card-content p {
  margin: 0;
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.6;
  font-weight: 500;
}

.feature-card-footer {
  margin-top: auto;
  padding-top: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 800;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0;
  transform: translateX(-10px);
  transition: all 0.3s ease;
}

.feature-card:hover .feature-card-footer {
  opacity: 1;
  transform: translateX(0);
}

.admin-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 6px 14px;
  background: rgba(43, 52, 123, 0.05);
  /* Very soft primary glow */
  color: var(--primary);
  border-radius: 10px;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid rgba(43, 52, 123, 0.1);
}

/* Stats Banner */
.stats-banner {
  background: white;
  border-radius: 24px;
  padding: 32px 48px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--border-accent);
  margin: -40px auto 32px;
  max-width: 1000px;
  position: relative;
  z-index: 20;
}

.stat-item {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-value {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--secondary);
  line-height: 1;
}

.stat-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-color);
}

/* Admin & Resource Toolbar */
.action-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 24px 32px;
  background: white;
  border-radius: 20px;
  border: 1px solid var(--border-accent);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
  align-items: center;
}

.toolbar-group {
  display: flex;
  gap: 8px;
  align-items: center;
  padding-right: 16px;
  border-right: 1px solid var(--border-color);
}

.toolbar-group:last-child {
  border-right: none;
}

.toolbar-label {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-right: 8px;
}

/* Course Header Section */
.course-header-premium {
  background: white;
  padding: 32px 48px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 0;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  overflow-x: auto;
  white-space: nowrap;
  -ms-overflow-style: none;
  /* IE and Edge */
  scrollbar-width: none;
  /* Firefox */
  padding-bottom: 4px;
}

.breadcrumbs::-webkit-scrollbar {
  display: none;
  /* Chrome, Safari and Opera */
}

.breadcrumbs a {
  display: inline-block;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: all 0.2s ease;
  color: var(--secondary) !important;
  text-decoration: none !important;
}

.breadcrumbs span {
  display: inline-block;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-muted);
  opacity: 0.8;
}

.breadcrumbs a:hover {
  color: var(--primary);
  text-decoration: underline !important;
}

.breadcrumbs i {
  font-size: 16px;
  opacity: 0.5;
  flex-shrink: 0;
  color: var(--text-muted);
}

.course-main-title {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--secondary);
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}

.course-id-banner {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(43, 52, 123, 0.06);
  border-radius: 999px;
  color: var(--primary);
  font-weight: 800;
  font-size: 0.85rem;
}

/* Curriculum Grid */
.curriculum-section {
  margin-top: 24px;
}

.section-title-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 850;
  color: var(--secondary);
  margin: 0;
}

/* Achievement & Certificate Cards */
.certificate-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 32px;
  max-width: 1400px;
  margin: 0 auto;
  padding: 40px;
}

.certificate-card {
  background: white;
  border-radius: 24px;
  padding: 40px;
  border: 2px solid var(--border-accent);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 24px;
  box-shadow: var(--shadow-soft);
  text-decoration: none;
}

.certificate-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.cert-icon-ribbon {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  background: rgba(43, 52, 123, 0.08);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.certificate-card:hover .cert-icon-ribbon {
  background: var(--primary);
  color: white;
}

.cert-score-circle {
  width: 80px;
  height: 80px;
  border: 4px solid var(--primary-light);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}

.score-value {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
}

.score-label {
  font-size: 0.65rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.cert-info h3 {
  margin: 0 0 10px;
  font-size: 1.3rem;
  font-weight: 850;
  color: var(--secondary);
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.cert-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}

.cert-action {
  color: var(--primary);
  font-weight: 800;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* =========================================
         NITCHLY PREMIUM UI COMPONENTS
         ========================================= */

.main-content {
  padding-bottom: 40px;
}

.glass-card {
  background: white;
  border: 1px solid var(--border-accent);
  border-radius: 28px;
  box-shadow: var(--shadow-premium);
  transition: all 0.4s ease;
  overflow: hidden;
}

.glass-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.form-label-premium {
  font-weight: 850;
  color: var(--secondary);
  margin-bottom: 12px;
  display: block;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.char-counter {
  font-size: 0.8rem;
  font-weight: 700;
  margin-top: 8px;
  text-align: right;
}

.arx-upload-dropzone {
  position: relative;
  display: flex;
  min-height: 150px;
  width: 100%;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 28px 20px;
  border: 2px dashed #dbe3f0;
  border-radius: 18px;
  background: #ffffff;
  color: var(--text-main);
  text-align: center;
  transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.arx-upload-dropzone:hover,
.arx-upload-dropzone:focus-within {
  border-color: var(--primary);
  background: rgba(43, 52, 123, 0.025);
  box-shadow: 0 12px 24px rgba(43, 52, 123, 0.08);
}

.arx-upload-dropzone-input {
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 100%;
  height: 100%;
  cursor: pointer;
  opacity: 0;
}

.arx-upload-dropzone-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 30px;
  color: var(--primary);
  pointer-events: none;
}

.arx-upload-dropzone-icon .material-icons {
  font-size: 34px;
  line-height: 1;
}

.arx-upload-dropzone-title {
  color: var(--primary);
  font-size: 0.95rem;
  font-weight: 850;
  line-height: 1.25;
  pointer-events: none;
}

.arx-upload-dropzone-subtitle {
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1.35;
  pointer-events: none;
}

.arx-upload-dropzone-compact {
  min-height: 132px;
  padding: 22px 16px;
}


.creation-forms-wrapper {
  min-height: 300px;
  position: relative;
}

.creation-forms-wrapper form {
  animation: fadeIn 0.4s ease-out forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Utilities */
.spin {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 1200px) {
  .glass-card {
    border-radius: 20px;
    padding: 24px !important;
  }

  .toolbar-btn {
    padding: 10px 16px;
    font-size: 0.9rem;
  }

  .video-cinema-wrapper {
    height: 520px;
  }

  .transcript-card-premium {
    min-height: 600px;
  }

  .side-border-desktop {
    border-right: none !important;
    border-bottom: 1px solid rgba(43, 52, 123, 0.05);
  }

  .header-actions-premium {
    flex-direction: row !important;
    width: 100%;
    justify-content: flex-start;
    gap: 12px;
    margin-top: 16px;
  }
}

@media (max-width: 768px) {
  .video-cinema-wrapper {
    height: 380px;
  }

  .session-footer-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding: 24px 20px;
  }

  .session-footer-card form {
    margin-left: 0 !important;
    width: 100%;
  }

  .session-footer-card button {
    width: 100%;
  }

  .transcript-header {
    padding: 20px 24px !important;
  }

  .transcript-scroll {
    padding: 20px !important;
  }

  .course-header-premium {
    padding: 24px 20px !important;
  }

  .course-header-premium .d-flex {
    flex-direction: column !important;
  }

  .header-actions-premium {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 10px;
  }

  .session-timer-pill,
  .btn-restart-premium {
    width: 100%;
    justify-content: center;
  }

  .stats-banner {
    flex-direction: column;
    gap: 16px;
    padding: 24px 20px;
    margin: 20px 16px 32px !important;
    max-width: calc(100% - 32px) !important;
  }

  .stat-divider {
    width: 100%;
    height: 1px;
    margin: 8px 0;
  }

  .content-body {
    padding: 16px 16px 32px !important;
  }

  .search-results-grid {
    grid-template-columns: 1fr;
    padding: 0 16px;
  }

  .certificate-grid {
    grid-template-columns: 1fr;
    padding: 16px;
  }

  .search-results-container {
    padding: 32px 0;
  }
}

.header-actions-premium {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.session-timer-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(43, 52, 123, 0.04);
  /* Match theme indigo instead of red background */
  padding: 6px 14px;
  border-radius: 12px;
  border: 1.5px solid rgba(43, 52, 123, 0.08);
  /* Match theme indigo border */
  color: #ef4444;
  /* Keep text red for prominence */
  font-size: 0.85rem;
  font-weight: 700;
  transition: all 0.3s ease;
}

.session-timer-pill i {
  font-size: 1.1rem;
}

.btn-restart-premium {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(43, 52, 123, 0.05);
  border: 1.5px solid rgba(43, 52, 123, 0.1);
  color: var(--primary);
  padding: 8px 18px;
  border-radius: 12px;
  text-decoration: none !important;
  font-size: 0.85rem;
  font-weight: 800;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-restart-premium:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
}

.side-border-desktop {
  border-right: 1px solid rgba(43, 52, 123, 0.05);
}


/* Premium Carousel Styling (Overhaul) */
.premium-carousel-container {
  background: white;
  border-radius: 28px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(43, 52, 123, 0.05);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 500px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  border: 1px solid var(--border-accent);
}

.premium-carousel-viewport {
  flex: 1;
  position: relative;
  padding: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}

.carousel-slide {
  display: none;
  width: 100%;
  animation: slideIn 0.6s cubic-bezier(0.23, 1, 0.32, 1);
  opacity: 0;
  transition: opacity 0.5s ease;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.carousel-slide.active {
  display: flex;
  opacity: 1;
}

@keyframes slideIn {
  from {
    transform: translateY(15px) scale(0.98);
    opacity: 0;
  }

  to {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

.slide-intro,
.slide-outro {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

.slide-content {
  font-size: 1.25rem;
  line-height: 1.8;
  color: var(--text-main);
  max-width: 800px;
  margin: 0 auto;
  padding: 1rem;
}

.slide-media img {
  max-width: 100%;
  max-height: 380px;
  border-radius: 24px;
  object-fit: cover;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
  border: 4px solid white;
}

.carousel-nav-footer {
  padding: 1.75rem 3rem;
  background: rgba(255, 255, 255, 0.98);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 100;
  position: relative;
}

.secondary-nav-btn {
  background: rgba(43, 52, 123, 0.06) !important;
  color: var(--primary) !important;
  border: 1px solid rgba(43, 52, 123, 0.1) !important;
  padding: 12px 24px !important;
  border-radius: 14px !important;
  font-weight: 700 !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 8px !important;
  transition: all 0.3s ease !important;
}

.secondary-nav-btn:hover {
  background: rgba(43, 52, 123, 0.12) !important;
  color: var(--primary) !important;
  transform: translateX(-5px);
}

.primary-nav-btn {
  background: var(--primary) !important;
  color: white !important;
  border: none !important;
  padding: 12px 28px !important;
  border-radius: 14px !important;
  font-weight: 700 !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 10px !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.primary-nav-btn:hover {
  background: var(--primary-light) !important;
  color: white !important;
  transform: translateX(5px);
}

.slide-indicator {
  font-size: 0.9rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}


/* Command Center Toolbar - Premium Course management Styling */
.command-center-toolbar {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 24px 32px;
  background: #ffffff;
  border: 1px solid rgba(43, 52, 123, 0.08);
  border-radius: 28px;
  box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.05);
}

.toolbar-section {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.command-center-toolbar .toolbar-section.ms-auto {
  margin-left: 0 !important;
}

.section-tag {
  font-size: 0.72rem;
  font-weight: 900;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  opacity: 0.6;
  padding-left: 4px;
}

.section-tools {
  display: flex;
  gap: 10px;
  flex-wrap: nowrap;
  min-width: 0;
}

.tool-btn, .tool-btn-primary, .tool-btn-glow, .tool-btn-help {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 14px;
  font-weight: 800;
  font-size: 0.88rem;
  text-decoration: none;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1.5px solid #f1f5f9;
  background: #f8fafc;
  color: #475569;
  cursor: pointer;
}

.tool-btn:hover {
  background: white;
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(43, 52, 123, 0.12);
}

.tool-btn-primary {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.tool-btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(43, 52, 123, 0.25);
  color: white;
}

.tool-btn-glow {
  background: #fff;
  border-color: #6366f1;
  color: #6366f1;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.1);
}

.tool-btn-glow:hover {
  background: #6366f1;
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 15px 30px rgba(99, 102, 241, 0.25);
}

.tool-btn-help {
  background: transparent;
  border-color: transparent;
  color: var(--secondary);
}

.tool-btn-help:hover {
  background: #f1f5f9;
  color: var(--primary);
  transform: scale(1.05);
}

.tool-btn i {
  font-size: 1.15rem;
}

@media (max-width: 768px) {
  .command-center-toolbar {
    padding: 20px;
    gap: 16px;
    border-radius: 20px;
  }

  .toolbar-section {
    align-items: flex-start;
    gap: 10px;
  }
  
  .section-tools {
    gap: 8px;
    flex-wrap: wrap;
  }
  
  .tool-btn, .tool-btn-primary, .tool-btn-glow {
    padding: 8px 14px;
    font-size: 0.82rem;
  }
}


/* Dashboard Header Protection - Prevents long titles from breaking the UI */
.course-main-title {
  font-size: 2.8rem;
  font-weight: 850;
  color: #111827;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  line-height: 1.25;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  max-width: 1000px;
}

@media (max-width: 991px) {
  .course-main-title {
    font-size: 2.2rem;
    -webkit-line-clamp: 3;
  }
}


@media (max-width: 768px) { .feature-card { padding: 24px !important; } }