/* ==========================================================================
   AI CLASS PLATFORM - INTERACTIVE SLIDE DECK & PRESENTATION VIEW
   ========================================================================== */

.slide-deck-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.slide-viewer-box {
  background: radial-gradient(circle at top left, #1e1b4b 0%, #0f172a 70%);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-lg);
  padding: 3rem 3.5rem;
  min-height: 480px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.7);
  position: relative;
  overflow: hidden;
}

.slide-viewer-box::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.15), transparent 70%);
  pointer-events: none;
}

.slide-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.slide-badge {
  background: var(--grad-brand);
  color: white;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.slide-counter {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent-cyan);
  background: rgba(0, 0, 0, 0.3);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
}

.slide-main-body {
  flex-grow: 1;
}

.slide-heading {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.slide-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
  line-height: 1.7;
}

.slide-bullets-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 2rem;
}

.slide-bullets-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 1.05rem;
  color: var(--text-primary);
}

.slide-bullets-list li::before {
  content: '✦';
  color: var(--accent-cyan);
  font-weight: bold;
  font-size: 1.1rem;
}

.slide-highlight-card {
  background: rgba(99, 102, 241, 0.12);
  border-left: 4px solid var(--accent-cyan);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1rem 1.5rem;
  font-size: 0.95rem;
  font-style: italic;
  color: #e2e8f0;
}

/* Controls Bar */
.slide-controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 1rem;
}

.slide-nav-buttons {
  display: flex;
  gap: 0.75rem;
}

.slide-module-selector {
  min-width: 250px;
}

/* Speaker Notes Collapsible Box */
.speaker-notes-box {
  background: rgba(15, 23, 42, 0.7);
  border: 1px dashed var(--accent-amber);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  font-size: 0.85rem;
  color: #fbbf24;
}

.speaker-notes-box h5 {
  color: #f59e0b;
  margin-bottom: 0.25rem;
  font-size: 0.85rem;
}

/* Fullscreen Presentation Mode */
.fullscreen-presentation {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  z-index: 9999 !important;
  border-radius: 0 !important;
  padding: 4rem 6rem !important;
}

@media (max-width: 768px) {
  .slide-viewer-box {
    padding: 1.5rem;
    min-height: auto;
  }
  .slide-heading {
    font-size: 1.5rem;
  }
}