/* VR Academy - Marvel/Vingadores Dark Cinematic Theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --bg-primary: #05050a;
  --bg-secondary: #0a0a14;
  --bg-card: #0f0f1e;
  --bg-card-hover: #15152a;
  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b8;
  --text-muted: #6a6a80;
  --accent-blue: #2563eb;
  --accent-green: #10b981;
  --accent-orange: #f57c00;
  --accent-purple: #7b1fa2;
  --accent-red: #d32f2f;
  --accent-gold: #f57f17;
  --accent-cyan: #00acc1;
  --accent-magenta: #e91e63;
  --accent-silver: #78909c;
  --border: #1a1a30;
  --border-light: #252540;
  --shadow: 0 4px 24px rgba(0,0,0,0.5);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.7);
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 18px;
}

* { margin:0; padding:0; box-sizing:border-box; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(37,99,235,0.04) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(139,92,246,0.03) 0%, transparent 50%);
}

a { color: var(--accent-blue); text-decoration: none; transition: color 0.2s; }
a:hover { color: #4f8fff; }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: linear-gradient(180deg, rgba(5,5,10,0.97) 0%, rgba(5,5,10,0.88) 100%);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--text-primary);
}

.navbar-brand .logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #2563eb, #7b1fa2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 900;
  box-shadow: 0 0 20px rgba(37,99,235,0.3);
}

.navbar-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.navbar-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.navbar-links a:hover, .navbar-links a.active {
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: 130px 2rem 70px;
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
}

.hero::after {
  content: '';
  position: absolute;
  top: 80px;
  right: 0;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(37,99,235,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-block;
  background: linear-gradient(135deg, rgba(37,99,235,0.15), rgba(139,92,246,0.15));
  border: 1px solid rgba(37,99,235,0.2);
  padding: 6px 18px;
  border-radius: 30px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.2rem;
  text-shadow: 0 0 60px rgba(37,99,235,0.15);
}

.hero h1 .hero-highlight {
  background: linear-gradient(135deg, #ffffff 0%, #a0a0cc 50%, #6a6aff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
}

.hero-stat {
  text-align: center;
}

.hero-stat .value {
  font-size: 2.4rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: none;
}

.hero-stat .label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 600;
  margin-top: 4px;
}

/* ============================================================
   SECTION TITLES
   ============================================================ */
.section-title {
  padding: 2.5rem 2rem 1.2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.section-title h2 {
  font-size: 1.8rem;
  font-weight: 800;
  text-shadow: 0 0 40px rgba(255,255,255,0.05);
}

.section-title p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 0.3rem;
}

/* ============================================================
   MODULE GRID — Cinematic Cards
   ============================================================ */
.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.8rem;
  padding: 1.2rem 2rem 4rem;
  max-width: 1400px;
  margin: 0 auto;
}

.module-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  position: relative;
}

.module-card:hover {
  transform: scale(1.04);
  border-color: rgba(255,255,255,0.1);
}

/* Module-specific glow on hover */
.mod-bant:hover { box-shadow: 0 8px 40px rgba(37,99,235,0.25), 0 0 60px rgba(37,99,235,0.08); }
.mod-produtos:hover { box-shadow: 0 8px 40px rgba(16,185,129,0.25), 0 0 60px rgba(16,185,129,0.08); }
.mod-abertura:hover { box-shadow: 0 8px 40px rgba(245,124,0,0.25), 0 0 60px rgba(245,124,0,0.08); }
.mod-investigacao:hover { box-shadow: 0 8px 40px rgba(123,31,162,0.25), 0 0 60px rgba(123,31,162,0.08); }
.mod-objecoes:hover { box-shadow: 0 8px 40px rgba(211,47,47,0.25), 0 0 60px rgba(211,47,47,0.08); }
.mod-fechamento:hover { box-shadow: 0 8px 40px rgba(245,127,23,0.25), 0 0 60px rgba(245,127,23,0.08); }
.mod-handoff:hover { box-shadow: 0 8px 40px rgba(0,172,193,0.25), 0 0 60px rgba(0,172,193,0.08); }
.mod-gametapes:hover { box-shadow: 0 8px 40px rgba(233,30,99,0.25), 0 0 60px rgba(233,30,99,0.08); }
.mod-certificacao:hover { box-shadow: 0 8px 40px rgba(120,144,156,0.25), 0 0 60px rgba(120,144,156,0.08); }

/* Thumbnail with real photo */
.module-card .thumbnail {
  height: 200px;
  position: relative;
  overflow: hidden;
  background-size: cover;
  background-position: center;
}

.module-card .thumbnail .thumbnail-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
}

/* Module gradient overlays */
.mod-bant .thumbnail .thumbnail-overlay { background: linear-gradient(135deg, rgba(26,35,126,0.85), rgba(13,71,161,0.75)); }
.mod-produtos .thumbnail .thumbnail-overlay { background: linear-gradient(135deg, rgba(27,94,32,0.85), rgba(46,125,50,0.75)); }
.mod-abertura .thumbnail .thumbnail-overlay { background: linear-gradient(135deg, rgba(230,81,0,0.85), rgba(245,124,0,0.75)); }
.mod-investigacao .thumbnail .thumbnail-overlay { background: linear-gradient(135deg, rgba(74,20,140,0.85), rgba(123,31,162,0.75)); }
.mod-objecoes .thumbnail .thumbnail-overlay { background: linear-gradient(135deg, rgba(183,28,28,0.85), rgba(211,47,47,0.75)); }
.mod-fechamento .thumbnail .thumbnail-overlay { background: linear-gradient(135deg, rgba(245,127,23,0.85), rgba(255,213,79,0.70)); }
.mod-handoff .thumbnail .thumbnail-overlay { background: linear-gradient(135deg, rgba(0,96,100,0.85), rgba(0,172,193,0.75)); }
.mod-gametapes .thumbnail .thumbnail-overlay { background: linear-gradient(135deg, rgba(136,14,79,0.85), rgba(233,30,99,0.75)); }
.mod-certificacao .thumbnail .thumbnail-overlay { background: linear-gradient(135deg, rgba(55,71,79,0.85), rgba(120,144,156,0.75)); }

.module-card .thumbnail .mod-number {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(8px);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  border: 1px solid rgba(255,255,255,0.1);
}

.module-card .thumbnail .mod-lessons {
  position: absolute;
  bottom: 14px;
  right: 14px;
  z-index: 2;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(8px);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.1);
}

.module-card .thumbnail .mod-icon {
  font-size: 3.5rem;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
  z-index: 2;
  position: relative;
}

.module-card .card-body {
  padding: 1.4rem;
}

.module-card .card-body h3 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.module-card .card-body p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.55;
  margin-bottom: 0.8rem;
}

/* Progress Bar */
.module-progress {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 0.5rem;
}

.progress-bar {
  flex: 1;
  height: 4px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  border-radius: 4px;
  width: 0%;
  transition: width 0.5s ease;
}

.progress-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 600;
  white-space: nowrap;
}

/* ============================================================
   AULA GRID (inside module page)
   ============================================================ */
.aula-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.2rem;
  padding: 1rem 2rem 3rem;
  max-width: 1400px;
  margin: 0 auto;
}

.aula-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  border: 1px solid var(--border);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  position: relative;
}

.aula-card:hover {
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.aula-card.completed {
  border-color: rgba(16,185,129,0.3);
}

.aula-card.completed::after {
  content: 'Concluida';
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(16,185,129,0.15);
  color: #10b981;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.aula-card .aula-num {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
}

.aula-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.35;
}

.aula-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  flex-grow: 1;
  line-height: 1.5;
}

.aula-card .aula-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb {
  padding: 82px 2rem 0;
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
}

.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--text-primary); }
.breadcrumb .sep { color: var(--text-muted); }
.breadcrumb .current { color: var(--text-secondary); font-weight: 500; }

/* ============================================================
   MODULE HEADER
   ============================================================ */
.module-header {
  padding: 1.5rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.module-header h1 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  text-shadow: 0 0 40px rgba(255,255,255,0.05);
}

.module-header .subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* ============================================================
   AULA PAGE LAYOUT
   ============================================================ */
.aula-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 2rem 4rem;
}

.aula-layout h1 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  text-shadow: 0 0 30px rgba(255,255,255,0.04);
}

.aula-layout .aula-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 1.5rem;
}

/* ============================================================
   AUDIO PLAYER
   ============================================================ */
.audio-section {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 2rem;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.audio-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple), var(--accent-magenta));
}

.audio-section h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.audio-section audio {
  width: 100%;
  height: 48px;
  border-radius: var(--radius-sm);
}

audio::-webkit-media-controls-panel {
  background: var(--bg-secondary);
}

/* ============================================================
   SLIDES CAROUSEL
   ============================================================ */
.slides-section {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 2rem;
  border: 1px solid var(--border);
  position: relative;
}

.slides-container {
  position: relative;
  overflow: hidden;
  min-height: 400px;
}

.slide {
  display: none;
  animation: fadeSlide 0.45s ease;
}

.slide.active { display: block; }

@keyframes fadeSlide {
  from { opacity: 0; transform: translateX(24px); }
  to { opacity: 1; transform: translateX(0); }
}

.slide h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 2px solid var(--border);
}

.slide ul {
  list-style: none;
  padding: 0;
}

.slide ul li {
  padding: 0.6rem 0;
  padding-left: 1.5rem;
  position: relative;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.slide ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 1rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-blue);
  box-shadow: 0 0 8px rgba(37,99,235,0.4);
}

.slide .highlight-box {
  background: rgba(37,99,235,0.08);
  border-left: 4px solid var(--accent-blue);
  padding: 1rem 1.2rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1rem 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.slide .highlight-box.green {
  background: rgba(16,185,129,0.08);
  border-left-color: var(--accent-green);
}

.slide .highlight-box.red {
  background: rgba(211,47,47,0.08);
  border-left-color: var(--accent-red);
}

.slide .highlight-box.gold {
  background: rgba(245,127,23,0.08);
  border-left-color: var(--accent-gold);
}

.slide .highlight-box.purple {
  background: rgba(123,31,162,0.08);
  border-left-color: var(--accent-purple);
}

.slide .stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin: 1.2rem 0;
}

.slide .stat-box {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.2rem;
  text-align: center;
  transition: all 0.3s;
}

.slide .stat-box:hover {
  border-color: var(--border-light);
  background: rgba(255,255,255,0.04);
}

.slide .stat-box .stat-value {
  font-size: 2rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.slide .stat-box .stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
  line-height: 1.3;
}

.slide .script-box {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.2rem;
  margin: 1rem 0;
  font-style: italic;
  color: var(--text-secondary);
  line-height: 1.7;
  position: relative;
}

.slide .script-box .script-label {
  font-style: normal;
  font-weight: 700;
  color: var(--accent-green);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 0.5rem;
  display: block;
}

.slide .do-dont {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1rem 0;
}

.slide .do-col { border-left: 3px solid var(--accent-green); padding-left: 1rem; }
.slide .dont-col { border-left: 3px solid var(--accent-red); padding-left: 1rem; }
.slide .do-col h4 { color: var(--accent-green); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 0.5rem; font-weight: 700; }
.slide .dont-col h4 { color: var(--accent-red); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 0.5rem; font-weight: 700; }

/* ============================================================
   SLIDE NAVIGATION
   ============================================================ */
.slide-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.slide-nav button {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s;
}

.slide-nav button:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.15);
}

.slide-nav button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.slide-progress {
  display: flex;
  gap: 6px;
  align-items: center;
}

.slide-progress .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-light);
  transition: all 0.3s;
  cursor: pointer;
}

.slide-progress .dot.active {
  background: var(--accent-blue);
  width: 28px;
  border-radius: 4px;
  box-shadow: 0 0 12px rgba(37,99,235,0.4);
}

.slide-counter {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* ============================================================
   MATERIAIS
   ============================================================ */
.materiais-section {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 2rem;
  border: 1px solid var(--border);
}

.materiais-section h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.materiais-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.8rem;
}

.material-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: all 0.25s;
  cursor: pointer;
  text-decoration: none;
}

.material-item:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.material-item .mat-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.mat-pdf .mat-icon { background: rgba(211,47,47,0.12); }
.mat-workbook .mat-icon { background: rgba(16,185,129,0.12); }
.mat-mapa .mat-icon { background: rgba(123,31,162,0.12); }
.mat-checklist .mat-icon { background: rgba(37,99,235,0.12); }
.mat-frases .mat-icon { background: rgba(245,124,0,0.12); }

/* ============================================================
   TRANSCRICAO ACCORDION
   ============================================================ */
.transcricao-section {
  background: var(--bg-card);
  border-radius: var(--radius);
  margin-bottom: 2rem;
  border: 1px solid var(--border);
  overflow: hidden;
}

.transcricao-header {
  padding: 1.2rem 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.2s;
}

.transcricao-header:hover {
  background: rgba(255,255,255,0.03);
}

.transcricao-header h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.transcricao-header .arrow {
  transition: transform 0.3s;
  color: var(--text-muted);
}

.transcricao-header.open .arrow {
  transform: rotate(180deg);
}

.transcricao-body {
  display: none;
  padding: 0 1.5rem 1.5rem;
  max-height: 400px;
  overflow-y: auto;
}

.transcricao-body.open {
  display: block;
}

.transcricao-body p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
  white-space: pre-wrap;
}

.transcricao-body::-webkit-scrollbar {
  width: 5px;
}

.transcricao-body::-webkit-scrollbar-track {
  background: transparent;
}

.transcricao-body::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

/* ============================================================
   NAVIGATION BUTTONS
   ============================================================ */
.aula-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
}

.aula-nav a {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 1.2rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.25s;
}

.aula-nav a:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--border-light);
}

.aula-nav a.next { text-align: right; }

.aula-nav a .nav-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  background: var(--bg-secondary);
}

/* ============================================================
   ENHANCED VISUAL SLIDES — VR Academy v2.0
   ============================================================ */

/* Large stat number (hero-sized) */
.slide .stat-hero {
  text-align: center;
  padding: 30px 20px;
  background: rgba(255,255,255,0.03);
  border-radius: 16px;
  margin: 20px 0;
  border: 1px solid var(--border);
}

.slide .stat-hero .stat-number {
  font-size: 64px;
  font-weight: 900;
  background: linear-gradient(135deg, #f57f17, #ffd54f);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.slide .stat-hero .stat-number.blue {
  background: linear-gradient(135deg, #2563eb, #60a5fa);
  -webkit-background-clip: text;
  background-clip: text;
}

.slide .stat-hero .stat-number.green {
  background: linear-gradient(135deg, #10b981, #6ee7b7);
  -webkit-background-clip: text;
  background-clip: text;
}

.slide .stat-hero .stat-number.red {
  background: linear-gradient(135deg, #ef4444, #fca5a5);
  -webkit-background-clip: text;
  background-clip: text;
}

.slide .stat-hero .stat-number.purple {
  background: linear-gradient(135deg, #7b1fa2, #ce93d8);
  -webkit-background-clip: text;
  background-clip: text;
}

.slide .stat-hero .stat-desc {
  display: block;
  font-size: 16px;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* Comparison grid (DO vs DONT enhanced) */
.slide .comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 20px 0;
}

.slide .comp-do {
  background: rgba(46,125,50,0.10);
  border-left: 4px solid #4caf50;
  padding: 20px;
  border-radius: 0 12px 12px 0;
}

.slide .comp-dont {
  background: rgba(211,47,47,0.10);
  border-left: 4px solid #d32f2f;
  padding: 20px;
  border-radius: 0 12px 12px 0;
}

.slide .comp-do h4,
.slide .comp-dont h4 {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 10px;
}

.slide .comp-do h4 { color: #4caf50; }
.slide .comp-dont h4 { color: #d32f2f; }

.slide .comp-do p, .slide .comp-dont p,
.slide .comp-do ul, .slide .comp-dont ul {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Quote box (real call excerpts) */
.slide .quote-box {
  background: rgba(255,255,255,0.03);
  border-left: 4px solid var(--accent-purple);
  padding: 20px;
  margin: 20px 0;
  border-radius: 0 12px 12px 0;
  position: relative;
}

.slide .quote-box::before {
  content: '\201C';
  font-size: 48px;
  color: var(--accent-purple);
  opacity: 0.3;
  position: absolute;
  top: -5px;
  left: 12px;
  font-family: Georgia, serif;
}

.slide .quote-box blockquote {
  font-style: italic;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  padding-left: 24px;
}

.slide .quote-box cite {
  display: block;
  margin-top: 10px;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-style: normal;
  padding-left: 24px;
}

.slide .quote-box.green { border-left-color: var(--accent-green); }
.slide .quote-box.green::before { color: var(--accent-green); }
.slide .quote-box.gold { border-left-color: var(--accent-gold); }
.slide .quote-box.gold::before { color: var(--accent-gold); }
.slide .quote-box.red { border-left-color: var(--accent-red); }
.slide .quote-box.red::before { color: var(--accent-red); }
.slide .quote-box.blue { border-left-color: var(--accent-blue); }
.slide .quote-box.blue::before { color: var(--accent-blue); }

/* Progress bar visual */
.slide .progress-visual {
  margin: 15px 0;
}

.slide .progress-visual .pv-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.slide .progress-visual .pv-bar {
  height: 10px;
  background: var(--border);
  border-radius: 5px;
  overflow: hidden;
}

.slide .progress-visual .pv-fill {
  height: 100%;
  border-radius: 5px;
  transition: width 0.5s ease;
}

.slide .progress-visual .pv-fill.blue { background: linear-gradient(90deg, #2563eb, #60a5fa); }
.slide .progress-visual .pv-fill.green { background: linear-gradient(90deg, #10b981, #6ee7b7); }
.slide .progress-visual .pv-fill.red { background: linear-gradient(90deg, #ef4444, #fca5a5); }
.slide .progress-visual .pv-fill.gold { background: linear-gradient(90deg, #f57f17, #ffd54f); }
.slide .progress-visual .pv-fill.purple { background: linear-gradient(90deg, #7b1fa2, #ce93d8); }

/* Timestamp callout for objection moments */
.slide .timestamp-callout {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(245,127,23,0.08);
  border: 1px solid rgba(245,127,23,0.2);
  border-radius: 12px;
  padding: 16px 20px;
  margin: 16px 0;
}

.slide .timestamp-callout .ts-badge {
  background: linear-gradient(135deg, #f57f17, #ffd54f);
  color: #000;
  font-weight: 900;
  font-size: 0.9rem;
  padding: 6px 14px;
  border-radius: 8px;
  white-space: nowrap;
  font-family: 'Courier New', monospace;
}

.slide .timestamp-callout .ts-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Flow diagram (text-based) */
.slide .flow-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  margin: 20px 0;
  padding: 20px;
  background: rgba(255,255,255,0.02);
  border-radius: 12px;
  border: 1px solid var(--border);
}

.slide .flow-step {
  background: rgba(37,99,235,0.12);
  border: 1px solid rgba(37,99,235,0.3);
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
}

.slide .flow-arrow {
  color: var(--accent-blue);
  font-size: 1.2rem;
  padding: 0 8px;
  font-weight: 700;
}

/* Numbered step list */
.slide .step-list {
  counter-reset: step-counter;
  list-style: none;
  padding: 0;
  margin: 15px 0;
}

.slide .step-list li {
  counter-increment: step-counter;
  padding: 12px 12px 12px 50px;
  position: relative;
  margin-bottom: 10px;
  background: rgba(255,255,255,0.02);
  border-radius: 10px;
  border: 1px solid var(--border);
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.slide .step-list li::before {
  content: counter(step-counter);
  position: absolute;
  left: 12px;
  top: 10px;
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 0.8rem;
  color: #fff;
}

/* Slide header with number */
.slide .slide-header {
  margin-bottom: 1.5rem;
}

.slide .slide-header .slide-num {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.slide .slide-header h2 {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 4px;
  font-size: 1.5rem;
}

.slide .slide-header .slide-sub {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* Insight card */
.slide .insight-card {
  background: linear-gradient(135deg, rgba(37,99,235,0.08), rgba(123,31,162,0.08));
  border: 1px solid rgba(37,99,235,0.15);
  border-radius: 14px;
  padding: 20px;
  margin: 15px 0;
}

.slide .insight-card .ic-title {
  font-weight: 800;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-blue);
  margin-bottom: 8px;
}

.slide .insight-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .hero-stats { gap: 1.5rem; }
  .module-grid { grid-template-columns: 1fr; gap: 1.2rem; }
  .slide .do-dont { grid-template-columns: 1fr; }
  .slide .stat-grid { grid-template-columns: 1fr 1fr; }
  .navbar { padding: 0 1rem; }
  .hero, .section-title, .module-grid, .aula-grid { padding-left: 1rem; padding-right: 1rem; }
  .aula-nav { flex-direction: column; }
  .slide .comparison-grid { grid-template-columns: 1fr; }
  .slide .stat-hero .stat-number { font-size: 48px; }
  .slide .flow-diagram { flex-direction: column; gap: 8px; }
  .slide .flow-arrow { transform: rotate(90deg); }
}