/* ============================================
   AULAS VIRTUALES - PREMIUM STYLES
   VR/Metaverse Immersive Design
   ============================================ */

/* ============================================
   CSS VARIABLES
   ============================================ */
.aulas-page {
  --av-primary: #8b5cf6;
  --av-primary-light: #a78bfa;
  --av-primary-dark: #7c3aed;
  --av-secondary: #06b6d4;
  --av-accent: #f472b6;
  --av-green: #10b981;
  --av-cyan: #22d3d8;
  --av-surface: rgba(255, 255, 255, 0.03);
  --av-surface-hover: rgba(255, 255, 255, 0.06);
  --av-border: rgba(255, 255, 255, 0.08);
  --av-text: #f1f5f9;
  --av-text-muted: #94a3b8;
  --av-gradient-1: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 50%, #10b981 100%);
  --av-gradient-2: linear-gradient(135deg, #1e1b4b 0%, #0c0a20 100%);
  --av-glow: 0 0 60px rgba(139, 92, 246, 0.3);
}

/* ============================================
   HERO SECTION
   ============================================ */
.aulas-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(139, 92, 246, 0.25) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(6, 182, 212, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse 50% 30% at 20% 80%, rgba(16, 185, 129, 0.12) 0%, transparent 50%),
    var(--av-gradient-2);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(139, 92, 246, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 92, 246, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 50% at 50% 50%, black 0%, transparent 80%);
  animation: gridPulse 8s ease-in-out infinite;
}

@keyframes gridPulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.hero-particles {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(2px 2px at 20% 30%, rgba(139, 92, 246, 0.6) 50%, transparent 50%),
    radial-gradient(2px 2px at 60% 20%, rgba(6, 182, 212, 0.5) 50%, transparent 50%),
    radial-gradient(2px 2px at 80% 50%, rgba(16, 185, 129, 0.5) 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 40% 70%, rgba(139, 92, 246, 0.4) 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 10% 80%, rgba(6, 182, 212, 0.4) 50%, transparent 50%),
    radial-gradient(1px 1px at 90% 75%, rgba(244, 114, 182, 0.4) 50%, transparent 50%);
  background-size: 400px 400px;
  animation: particlesDrift 25s linear infinite;
}

@keyframes particlesDrift {
  0% { transform: translate(0, 0); }
  100% { transform: translate(-400px, -400px); }
}

.hero-orbs {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: orbFloat 12s ease-in-out infinite;
}

.orb-1 {
  width: 400px;
  height: 400px;
  top: -100px;
  right: -100px;
  background: radial-gradient(circle, var(--av-primary) 0%, transparent 70%);
  animation-delay: 0s;
}

.orb-2 {
  width: 300px;
  height: 300px;
  bottom: -50px;
  left: -50px;
  background: radial-gradient(circle, var(--av-secondary) 0%, transparent 70%);
  animation-delay: -4s;
}

.orb-3 {
  width: 250px;
  height: 250px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, var(--av-green) 0%, transparent 70%);
  animation-delay: -8s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -30px) scale(1.1); }
  50% { transform: translate(-20px, 20px) scale(0.9); }
  75% { transform: translate(20px, 30px) scale(1.05); }
}

.hero-container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-content {
  max-width: 600px;
}

.hero-badges {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--av-surface);
  border: 1px solid var(--av-border);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--av-text-muted);
  backdrop-filter: blur(10px);
}

.hero-badge svg {
  opacity: 0.8;
}

.badge-vr {
  border-color: rgba(139, 92, 246, 0.3);
  color: var(--av-primary-light);
}

.badge-meta {
  border-color: rgba(6, 182, 212, 0.3);
  color: var(--av-secondary);
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  color: var(--av-text);
}

.title-gradient {
  display: block;
  background: var(--av-gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--av-text-muted);
  margin-bottom: 32px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px 32px;
  background: var(--av-surface);
  border: 1px solid var(--av-border);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  margin-bottom: 32px;
}

.stat {
  text-align: center;
}

.stat-value {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--av-primary-light);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--av-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.hero-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 32px;
  background: var(--av-gradient-1);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
  transition: all 0.3s ease;
}

.hero-cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(139, 92, 246, 0.4);
}

.hero-cta-btn svg {
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(5px); }
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 450px;
}

.vr-headset {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.headset-glow {
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.3) 0%, transparent 70%);
  filter: blur(40px);
  animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

.headset-icon {
  font-size: 8rem;
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 0 30px rgba(139, 92, 246, 0.5));
  animation: headsetFloat 4s ease-in-out infinite;
}

@keyframes headsetFloat {
  0%, 100% { transform: translateY(0) rotate(-3deg); }
  50% { transform: translateY(-15px) rotate(3deg); }
}

.headset-rings {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid;
  opacity: 0;
  animation: ringExpand 3s ease-out infinite;
}

.ring-1 {
  width: 150px;
  height: 150px;
  border-color: var(--av-primary);
  animation-delay: 0s;
}

.ring-2 {
  width: 200px;
  height: 200px;
  border-color: var(--av-secondary);
  animation-delay: 1s;
}

.ring-3 {
  width: 250px;
  height: 250px;
  border-color: var(--av-green);
  animation-delay: 2s;
}

@keyframes ringExpand {
  0% { transform: scale(0.5); opacity: 0.8; }
  100% { transform: scale(1.5); opacity: 0; }
}

.floating-elements {
  position: absolute;
  inset: 0;
}

.float-element {
  position: absolute;
  font-size: 2.5rem;
  animation: floatAround 8s ease-in-out infinite;
}

.fe-1 { top: 10%; left: 10%; animation-delay: 0s; }
.fe-2 { top: 5%; right: 15%; animation-delay: -2s; }
.fe-3 { bottom: 15%; left: 5%; animation-delay: -4s; }
.fe-4 { bottom: 10%; right: 10%; animation-delay: -6s; }

@keyframes floatAround {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(10px, -15px) rotate(10deg); }
  50% { transform: translate(-10px, 10px) rotate(-5deg); }
  75% { transform: translate(15px, 5px) rotate(5deg); }
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--av-text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  animation: fadeInUp 1s ease 1.5s both;
}

.mouse {
  width: 24px;
  height: 40px;
  border: 2px solid var(--av-border);
  border-radius: 12px;
  position: relative;
}

.wheel {
  width: 4px;
  height: 8px;
  background: var(--av-primary-light);
  border-radius: 2px;
  position: absolute;
  left: 50%;
  top: 8px;
  transform: translateX(-50%);
  animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes scrollWheel {
  0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
  50% { opacity: 0.3; transform: translateX(-50%) translateY(10px); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateX(-50%) translateY(20px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ============================================
   INTRO SECTION
   ============================================ */
.aulas-intro {
  padding: 100px 0;
  background: linear-gradient(180deg, #0c0a20 0%, #0f0d24 100%);
  position: relative;
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.intro-content {
  opacity: 0;
  transform: translateX(-30px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.intro-content.revealed {
  opacity: 1;
  transform: translateX(0);
}

.section-badge {
  display: inline-flex;
  padding: 8px 16px;
  background: var(--av-surface);
  border: 1px solid var(--av-border);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--av-primary-light);
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--av-text);
  margin-bottom: 24px;
  line-height: 1.2;
}

.intro-content p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--av-text-muted);
  margin-bottom: 16px;
}

.intro-content strong {
  color: var(--av-secondary);
}

.intro-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 32px;
}

.intro-feature {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--av-surface);
  border: 1px solid var(--av-border);
  border-radius: 12px;
  transition: all 0.3s ease;
}

.intro-feature:hover {
  background: var(--av-surface-hover);
  border-color: rgba(139, 92, 246, 0.2);
  transform: translateX(5px);
}

.if-icon {
  font-size: 1.5rem;
  width: 40px;
  text-align: center;
}

.if-text {
  display: flex;
  flex-direction: column;
}

.if-text strong {
  color: var(--av-text);
  font-size: 0.95rem;
}

.if-text span {
  color: var(--av-text-muted);
  font-size: 0.85rem;
}

/* Intro Visual */
.intro-visual {
  opacity: 0;
  transform: translateX(30px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: 0.2s;
}

.intro-visual.revealed {
  opacity: 1;
  transform: translateX(0);
}

.visual-card {
  background: var(--av-surface);
  border: 1px solid var(--av-border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.vc-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--av-border);
}

.vc-dots {
  display: flex;
  gap: 6px;
}

.vc-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #4b5563;
}

.vc-dots span:first-child { background: #ef4444; }
.vc-dots span:nth-child(2) { background: #f59e0b; }
.vc-dots span:nth-child(3) { background: #10b981; }

.vc-title {
  flex: 1;
  text-align: center;
  font-size: 0.85rem;
  color: var(--av-text-muted);
}

.vc-body {
  padding: 24px;
}

.vc-preview {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed var(--av-border);
}

.preview-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--av-text-muted);
}

.pp-icon {
  font-size: 3rem;
  animation: placeholderPulse 2s ease-in-out infinite;
}

@keyframes placeholderPulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.05); opacity: 1; }
}

.pp-text {
  font-size: 0.9rem;
}

/* ============================================
   AULAS SECTION
   ============================================ */
.aulas-section {
  padding: 100px 0;
  background: linear-gradient(180deg, #0f0d24 0%, #0c0a20 100%);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-description {
  color: var(--av-text-muted);
  font-size: 1.1rem;
  margin-top: 16px;
}

.aulas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 32px;
}

/* Aula Card */
.aula-card {
  position: relative;
  background: var(--av-surface);
  border: 1px solid var(--av-border);
  border-radius: 24px;
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.aula-card.revealed {
  opacity: 1;
  transform: translateY(0);
}

.aula-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--av-glow);
  border-color: rgba(139, 92, 246, 0.3);
}

.aula-card.aula-featured {
  grid-column: span 1;
}

.aula-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.5;
}

.aula-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(180deg, rgba(139, 92, 246, 0.15) 0%, transparent 100%);
}

.aula-gradient.gradient-green {
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.15) 0%, transparent 100%);
}

.aula-gradient.gradient-cyan {
  background: linear-gradient(180deg, rgba(6, 182, 212, 0.15) 0%, transparent 100%);
}

.aula-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.02) 0%, transparent 50%);
}

.aula-content {
  position: relative;
  z-index: 1;
  padding: 32px;
}

.aula-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
}

.aula-icon-wrapper {
  position: relative;
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--av-surface-hover);
  border: 1px solid var(--av-border);
  border-radius: 20px;
}

.aula-icon {
  font-size: 2.5rem;
}

.icon-glow {
  position: absolute;
  inset: -10px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.3) 0%, transparent 70%);
  filter: blur(15px);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.aula-card:hover .icon-glow {
  opacity: 1;
}

.icon-green .icon-glow,
.glow-green {
  background: radial-gradient(circle, rgba(16, 185, 129, 0.3) 0%, transparent 70%);
}

.icon-cyan .icon-glow,
.glow-cyan {
  background: radial-gradient(circle, rgba(6, 182, 212, 0.3) 0%, transparent 70%);
}

.aula-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.aula-badge {
  padding: 6px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-radius: 100px;
  background: var(--av-surface);
  border: 1px solid var(--av-border);
  color: var(--av-text-muted);
}

.aula-badge.ab-popular {
  background: rgba(251, 191, 36, 0.1);
  border-color: rgba(251, 191, 36, 0.3);
  color: #fbbf24;
}

.aula-badge.ab-vr {
  background: rgba(139, 92, 246, 0.1);
  border-color: rgba(139, 92, 246, 0.3);
  color: var(--av-primary-light);
}

.aula-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--av-text);
  margin-bottom: 16px;
}

.aula-description {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--av-text-muted);
  margin-bottom: 24px;
}

.aula-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}

.af-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--av-text-muted);
  font-size: 0.9rem;
}

.af-item svg {
  color: var(--av-primary-light);
  flex-shrink: 0;
}

.aula-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 16px 24px;
  background: linear-gradient(135deg, var(--av-primary) 0%, var(--av-primary-dark) 100%);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 12px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.aula-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 50%, transparent 100%);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}

.aula-btn:hover::before {
  transform: translateX(100%);
}

.aula-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
}

.aula-btn.btn-green {
  background: linear-gradient(135deg, var(--av-green) 0%, #059669 100%);
}

.aula-btn.btn-green:hover {
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.4);
}

.aula-btn.btn-cyan {
  background: linear-gradient(135deg, var(--av-secondary) 0%, #0891b2 100%);
}

.aula-btn.btn-cyan:hover {
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.4);
}

.aula-decoration {
  position: absolute;
  bottom: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  opacity: 0.1;
  pointer-events: none;
}

.deco-crystal {
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, var(--av-primary) 0%, transparent 60%);
  transform: rotate(45deg);
}

/* ============================================
   HOW TO SECTION
   ============================================ */
.how-to-section {
  padding: 100px 0;
  background: linear-gradient(180deg, #0c0a20 0%, #0f0d24 100%);
}

.steps-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.step-card {
  flex: 1;
  min-width: 250px;
  max-width: 300px;
  padding: 32px 24px;
  background: var(--av-surface);
  border: 1px solid var(--av-border);
  border-radius: 20px;
  text-align: center;
  position: relative;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.step-card.revealed {
  opacity: 1;
  transform: translateY(0);
}

.step-card:hover {
  transform: translateY(-5px);
  border-color: rgba(139, 92, 246, 0.3);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.step-number {
  position: absolute;
  top: -15px;
  left: 24px;
  font-size: 3rem;
  font-weight: 800;
  background: var(--av-gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.3;
  line-height: 1;
}

.step-icon {
  font-size: 3rem;
  margin-bottom: 20px;
  display: block;
}

.step-card h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--av-text);
  margin-bottom: 12px;
}

.step-card p {
  font-size: 0.9rem;
  color: var(--av-text-muted);
  line-height: 1.6;
}

.step-connector {
  color: var(--av-border);
  flex-shrink: 0;
}

/* Requirements Box */
.requirements-box {
  max-width: 600px;
  margin: 0 auto;
  background: var(--av-surface);
  border: 1px solid var(--av-border);
  border-radius: 16px;
  overflow: hidden;
}

.rb-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid var(--av-border);
}

.rb-icon {
  font-size: 1.3rem;
}

.rb-header h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--av-text);
  margin: 0;
}

.rb-content {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.rb-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--av-text-muted);
}

.rb-check {
  color: var(--av-green);
  font-weight: 700;
}

/* ============================================
   CTA SECTION
   ============================================ */
.aulas-cta {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
}

.cta-gradient {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 80% 100% at 50% 100%, rgba(139, 92, 246, 0.2) 0%, transparent 60%),
    linear-gradient(180deg, #0f0d24 0%, #1e1b4b 100%);
}

.cta-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(139, 92, 246, 0.1) 0%, transparent 40%),
    radial-gradient(circle at 80% 50%, rgba(6, 182, 212, 0.1) 0%, transparent 40%);
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-badge {
  display: inline-flex;
  padding: 8px 20px;
  background: var(--av-surface);
  border: 1px solid var(--av-border);
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--av-primary-light);
  margin-bottom: 24px;
}

.cta-content h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--av-text);
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 1.15rem;
  color: var(--av-text-muted);
  margin-bottom: 32px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 28px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.cta-primary {
  background: var(--av-gradient-1);
  color: white;
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.cta-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(139, 92, 246, 0.4);
}

.cta-secondary {
  background: var(--av-surface);
  border: 1px solid var(--av-border);
  color: var(--av-text);
  backdrop-filter: blur(10px);
}

.cta-secondary:hover {
  background: var(--av-surface-hover);
  border-color: rgba(139, 92, 246, 0.3);
  transform: translateY(-3px);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 60px;
    text-align: center;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .hero-badges {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-cta-btn {
    margin: 0 auto;
  }
  
  .hero-visual {
    height: 350px;
  }
  
  .headset-icon {
    font-size: 6rem;
  }
  
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  
  .intro-visual {
    order: -1;
  }
  
  .aulas-grid {
    grid-template-columns: 1fr;
  }
  
  .steps-grid {
    flex-direction: column;
  }
  
  .step-connector {
    transform: rotate(90deg);
  }
  
  .step-card {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .aulas-hero {
    padding: 100px 0 60px;
    min-height: auto;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-stats {
    flex-wrap: wrap;
    gap: 16px;
    padding: 20px;
  }
  
  .stat-divider {
    display: none;
  }
  
  .stat {
    flex: 1;
    min-width: 80px;
  }
  
  .hero-visual {
    height: 280px;
  }
  
  .headset-icon {
    font-size: 5rem;
  }
  
  .float-element {
    font-size: 1.8rem;
  }
  
  .scroll-indicator {
    display: none;
  }
  
  .section-title {
    font-size: 1.6rem;
  }
  
  .intro-features {
    gap: 12px;
  }
  
  .aula-content {
    padding: 24px;
  }
  
  .aula-header {
    flex-direction: column;
    gap: 16px;
  }
  
  .aula-icon-wrapper {
    width: 60px;
    height: 60px;
  }
  
  .aula-icon {
    font-size: 2rem;
  }
  
  .aula-title {
    font-size: 1.3rem;
  }
  
  .cta-content h2 {
    font-size: 1.8rem;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .cta-btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-badges {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-badge {
    font-size: 0.8rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }
  
  .hero-stats {
    flex-direction: column;
  }
  
  .stat-value {
    font-size: 1.6rem;
  }
  
  .aulas-grid {
    grid-template-columns: 1fr;
  }
  
  .step-card {
    min-width: 100%;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  .aulas-hero,
  .hero-bg,
  .scroll-indicator,
  .aulas-cta {
    display: none !important;
  }
  
  .aulas-page {
    background: white !important;
    color: black !important;
  }
  
  .aula-card {
    break-inside: avoid;
    page-break-inside: avoid;
    border: 1px solid #ccc !important;
    background: white !important;
  }
}