/* ============================================
   AIGOEROE — AI Vibe Coding Course Landing Page
   Complete CSS Design System
   ============================================ */

/* === CSS Custom Properties (Design Tokens) === */
:root {
  /* Color Palette */
  --primary: #00d4ff;
  --primary-dark: #00a8cc;
  --primary-light: #66e5ff;
  --secondary: #7c3aed;
  --secondary-dark: #5b21b6;
  --secondary-light: #a78bfa;
  --accent: #f472b6;
  --accent-glow: #ec4899;

  /* Course Level Colors */
  --level-beginner: #10b981;
  --level-beginner-glow: rgba(16, 185, 129, 0.25);
  --level-web: #3b82f6;
  --level-web-glow: rgba(59, 130, 246, 0.25);
  --level-mobile: #8b5cf6;
  --level-mobile-glow: rgba(139, 92, 246, 0.25);
  --level-ai: #ef4444;
  --level-ai-glow: rgba(239, 68, 68, 0.25);

  /* Backgrounds */
  --bg-dark: #0a0a1a;
  --bg-darker: #050510;
  --bg-card: rgba(15, 15, 35, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.04);
  --bg-glass-hover: rgba(255, 255, 255, 0.08);
  --bg-gradient-hero: linear-gradient(135deg, #0a0a1a 0%, #1a0a2e 35%, #0d1b3e 70%, #0a0a1a 100%);
  --bg-gradient-section: linear-gradient(180deg, #0a0a1a 0%, #0f0f2a 50%, #0a0a1a 100%);
  --bg-gradient-alt: linear-gradient(180deg, #0f0f2a 0%, #0a0a1a 100%);

  /* Text Colors */
  --text-primary: #f0f0f5;
  --text-secondary: #a0a0c0;
  --text-muted: #6b6b8d;

  /* Borders */
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 212, 255, 0.3);

  /* Shadows */
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow-primary: 0 0 30px rgba(0, 212, 255, 0.2);
  --shadow-glow-secondary: 0 0 30px rgba(124, 58, 237, 0.2);

  /* Typography */
  --font-heading: 'Outfit', 'Inter', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --section-padding: 100px 0;
  --container-max: 1200px;
  --gap-sm: 8px;
  --gap-md: 16px;
  --gap-lg: 24px;
  --gap-xl: 40px;
  --gap-2xl: 64px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 50%;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* === Reset & Base === */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

/* === Custom Scrollbar === */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-darker);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--secondary));
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--primary-light), var(--secondary-light));
}

/* === Utility Classes === */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary-light) 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
}

.section-label::before {
  content: '';
  width: 32px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), transparent);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 48px;
}

/* === Animated Background Particles === */
.particles-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--primary);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat linear infinite;
}

@keyframes particleFloat {
  0% {
    opacity: 0;
    transform: translateY(100vh) scale(0);
  }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  100% {
    opacity: 0;
    transform: translateY(-100px) scale(1);
  }
}

/* === Scroll Reveal === */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* === Keyframe Animations === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

@keyframes orbPulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.15); }
}

@keyframes ringRotate {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes floatingCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

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

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(0, 212, 255, 0.1); }
  50% { box-shadow: 0 0 40px rgba(0, 212, 255, 0.3); }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-20px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalSlideIn {
  from { opacity: 0; transform: translateY(-40px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes timelineDot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.4); }
  50% { box-shadow: 0 0 0 12px rgba(0, 212, 255, 0); }
}

@keyframes creditBounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition-smooth);
}

.navbar.scrolled {
  background: rgba(10, 10, 26, 0.92);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border-glass);
  padding: 10px 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 1px;
}

.navbar-logo .logo-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 900;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.navbar-logo .logo-icon::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.2) 50%, transparent 60%);
  animation: shimmer 3s infinite;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: var(--transition-smooth);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-auth {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-auth .btn-login {
  padding: 8px 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  background: transparent;
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-body);
  transition: var(--transition-smooth);
}

.nav-auth .btn-login:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.nav-auth .btn-signup {
  padding: 8px 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-body);
  transition: var(--transition-smooth);
  box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.nav-auth .btn-signup:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(0, 212, 255, 0.4);
}

/* Logged in state */
.nav-user {
  display: none;
  align-items: center;
  gap: 16px;
}

.nav-user.active {
  display: flex;
}

.nav-auth.hidden {
  display: none;
}

.credit-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #10b981;
}

.credit-badge .credit-icon {
  font-size: 1rem;
}

.credit-badge.animate {
  animation: creditBounce 0.5s ease;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  position: relative;
  transition: var(--transition-fast);
}

.user-avatar:hover {
  transform: scale(1.1);
}

.user-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 8px 0;
  min-width: 180px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(20px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition-fast);
  z-index: 100;
}

.user-dropdown.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.user-dropdown a,
.user-dropdown button {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 18px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  transition: var(--transition-fast);
  text-align: left;
}

.user-dropdown a:hover,
.user-dropdown button:hover {
  background: var(--bg-glass-hover);
  color: var(--text-primary);
}

.user-dropdown .divider {
  height: 1px;
  background: var(--border-glass);
  margin: 4px 0;
}

/* Hide mobile auth on desktop */
.mobile-auth {
  display: none;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition-fast);
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-body);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.4);
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.15) 50%, transparent 60%);
  transform: translateX(-100%);
  transition: 0.6s;
}

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

.btn-secondary {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-glow);
  transform: translateY(-3px);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}

.btn-outline:hover {
  background: rgba(0, 212, 255, 0.1);
  transform: translateY(-3px);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.85rem;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg-gradient-hero);
}

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

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(10, 10, 26, 0.3) 0%,
    rgba(10, 10, 26, 0.6) 50%,
    var(--bg-dark) 100%
  );
}

.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 1;
  animation: gridPulse 8s ease-in-out infinite;
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding-top: 100px;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
  animation: fadeInUp 0.8s ease-out;
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulseDot 2s ease-in-out infinite;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -1px;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.8;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border-glass);
  animation: fadeInUp 0.8s ease-out 0.8s both;
}

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

.hero-stat .stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--secondary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat .stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInRight 1s ease-out 0.4s both;
}

.hero-visual-inner {
  position: relative;
  width: 480px;
  height: 480px;
}

.hero-orb {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.15) 0%, transparent 70%);
  animation: orbPulse 4s ease-in-out infinite;
}

.hero-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid;
  animation: ringRotate linear infinite;
}

.hero-ring:nth-child(2) {
  width: 320px;
  height: 320px;
  border-color: rgba(0, 212, 255, 0.15);
  animation-duration: 20s;
}

.hero-ring:nth-child(3) {
  width: 400px;
  height: 400px;
  border-color: rgba(124, 58, 237, 0.1);
  animation-duration: 30s;
  animation-direction: reverse;
}

.hero-ring:nth-child(4) {
  width: 460px;
  height: 460px;
  border-color: rgba(0, 212, 255, 0.05);
  animation-duration: 25s;
}

.hero-ring-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 15px var(--primary);
}

.hero-ring:nth-child(2) .hero-ring-dot {
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
}

.hero-ring:nth-child(3) .hero-ring-dot {
  bottom: -5px;
  right: 20%;
  background: var(--secondary-light);
  box-shadow: 0 0 15px var(--secondary);
}

.hero-ring:nth-child(4) .hero-ring-dot {
  top: 30%;
  right: -5px;
  background: var(--accent);
  box-shadow: 0 0 15px var(--accent);
}

.hero-center-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glow-primary);
}

.hero-center-icon svg {
  width: 48px;
  height: 48px;
  color: var(--primary);
}

.hero-floating-card {
  position: absolute;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  white-space: nowrap;
  box-shadow: var(--shadow-card);
  animation: floatingCard 6s ease-in-out infinite;
}

.hero-floating-card:nth-child(6) {
  top: 5%;
  right: 0;
  animation-delay: 0s;
}

.hero-floating-card:nth-child(7) {
  bottom: 15%;
  left: -10%;
  animation-delay: 2s;
}

.hero-floating-card:nth-child(8) {
  bottom: 5%;
  right: 5%;
  animation-delay: 4s;
}

.hero-floating-card .card-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.hero-floating-card .card-icon.blue { background: rgba(0, 212, 255, 0.15); }
.hero-floating-card .card-icon.purple { background: rgba(124, 58, 237, 0.15); }
.hero-floating-card .card-icon.pink { background: rgba(244, 114, 182, 0.15); }

/* ========================================
   TRUSTED BY SECTION
   ======================================== */
.trusted-section {
  padding: 60px 0;
  position: relative;
  z-index: 2;
}

.trusted-section .container {
  text-align: center;
}

.trusted-label {
  font-size: 0.8rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.trusted-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  opacity: 0.5;
}

.trusted-logo {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 2px;
  transition: var(--transition-fast);
}

.trusted-logo:hover {
  color: var(--text-secondary);
  opacity: 1;
}

/* ========================================
   COURSE LEVELS SECTION
   ======================================== */
.courses-section {
  padding: var(--section-padding);
  position: relative;
  background: var(--bg-gradient-section);
}

.courses-section .container {
  text-align: center;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: 20px;
}

.course-level-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: left;
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.course-level-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
  transition: var(--transition-smooth);
}

.course-level-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  opacity: 0;
  transition: var(--transition-smooth);
  pointer-events: none;
}

.course-level-card:hover {
  transform: translateY(-8px);
  border-color: transparent;
}

.course-level-card:hover::after {
  opacity: 1;
}

/* Level-specific colors */
.course-level-card.beginner::before { background: linear-gradient(90deg, var(--level-beginner), #34d399); }
.course-level-card.beginner:hover { box-shadow: 0 20px 60px var(--level-beginner-glow); }
.course-level-card.beginner:hover::after { border: 1px solid rgba(16, 185, 129, 0.3); }

.course-level-card.web::before { background: linear-gradient(90deg, var(--level-web), #60a5fa); }
.course-level-card.web:hover { box-shadow: 0 20px 60px var(--level-web-glow); }
.course-level-card.web:hover::after { border: 1px solid rgba(59, 130, 246, 0.3); }

.course-level-card.mobile::before { background: linear-gradient(90deg, var(--level-mobile), #a78bfa); }
.course-level-card.mobile:hover { box-shadow: 0 20px 60px var(--level-mobile-glow); }
.course-level-card.mobile:hover::after { border: 1px solid rgba(139, 92, 246, 0.3); }

.course-level-card.ai-tools::before { background: linear-gradient(90deg, var(--level-ai), #f87171); }
.course-level-card.ai-tools:hover { box-shadow: 0 20px 60px var(--level-ai-glow); }
.course-level-card.ai-tools:hover::after { border: 1px solid rgba(239, 68, 68, 0.3); }

.course-level-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.course-level-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.beginner .course-level-icon { background: var(--level-beginner-glow); }
.web .course-level-icon { background: var(--level-web-glow); }
.mobile .course-level-icon { background: var(--level-mobile-glow); }
.ai-tools .course-level-icon { background: var(--level-ai-glow); }

.course-level-badge {
  display: inline-flex;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.beginner .course-level-badge { background: rgba(16, 185, 129, 0.15); color: var(--level-beginner); }
.web .course-level-badge { background: rgba(59, 130, 246, 0.15); color: var(--level-web); }
.mobile .course-level-badge { background: rgba(139, 92, 246, 0.15); color: var(--level-mobile); }
.ai-tools .course-level-badge { background: rgba(239, 68, 68, 0.15); color: var(--level-ai); }

.course-level-card h3 {
  font-size: 1.3rem;
  margin-bottom: 4px;
}

.course-level-card > p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 24px;
  line-height: 1.7;
}

.course-curriculum {
  margin-bottom: 24px;
}

.course-curriculum h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.curriculum-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.curriculum-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.curriculum-item .check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  flex-shrink: 0;
}

.beginner .curriculum-item .check { background: rgba(16, 185, 129, 0.2); color: var(--level-beginner); }
.web .curriculum-item .check { background: rgba(59, 130, 246, 0.2); color: var(--level-web); }
.mobile .curriculum-item .check { background: rgba(139, 92, 246, 0.2); color: var(--level-mobile); }
.ai-tools .curriculum-item .check { background: rgba(239, 68, 68, 0.2); color: var(--level-ai); }

.course-level-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid var(--border-glass);
}

.course-meta-info {
  display: flex;
  gap: 20px;
}

.course-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.course-meta-item svg {
  width: 14px;
  height: 14px;
  opacity: 0.7;
}

.btn-explore {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 20px;
  font-size: 0.85rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-body);
  transition: var(--transition-smooth);
  color: #fff;
  text-decoration: none;
}

.beginner .btn-explore { background: linear-gradient(135deg, var(--level-beginner), #34d399); }
.web .btn-explore { background: linear-gradient(135deg, var(--level-web), #60a5fa); }
.mobile .btn-explore { background: linear-gradient(135deg, var(--level-mobile), #a78bfa); }
.ai-tools .btn-explore { background: linear-gradient(135deg, var(--level-ai), #f87171); }

.btn-explore:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* ========================================
   LEARNING PATH TIMELINE
   ======================================== */
.timeline-section {
  padding: var(--section-padding);
  position: relative;
  background: var(--bg-gradient-alt);
}

.timeline-section .container {
  text-align: center;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg,
    var(--level-beginner),
    var(--level-web),
    var(--level-mobile),
    var(--level-ai)
  );
  transform: translateX(-50%);
  opacity: 0.4;
}

.timeline-item {
  position: relative;
  display: flex;
  align-items: center;
  margin-bottom: 60px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-item:nth-child(odd) {
  flex-direction: row;
  padding-right: calc(50% + 40px);
  text-align: right;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
  padding-left: calc(50% + 40px);
  text-align: left;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  z-index: 2;
  animation: timelineDot 3s ease-in-out infinite;
}

.timeline-item:nth-child(1) .timeline-dot { background: var(--level-beginner); box-shadow: 0 0 20px var(--level-beginner-glow); }
.timeline-item:nth-child(2) .timeline-dot { background: var(--level-web); box-shadow: 0 0 20px var(--level-web-glow); animation-delay: 0.5s; }
.timeline-item:nth-child(3) .timeline-dot { background: var(--level-mobile); box-shadow: 0 0 20px var(--level-mobile-glow); animation-delay: 1s; }
.timeline-item:nth-child(4) .timeline-dot { background: var(--level-ai); box-shadow: 0 0 20px var(--level-ai-glow); animation-delay: 1.5s; }

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition-smooth);
  width: 100%;
}

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

.timeline-content h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.timeline-step {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.timeline-item:nth-child(1) .timeline-step { color: var(--level-beginner); }
.timeline-item:nth-child(2) .timeline-step { color: var(--level-web); }
.timeline-item:nth-child(3) .timeline-step { color: var(--level-mobile); }
.timeline-item:nth-child(4) .timeline-step { color: var(--level-ai); }

/* ========================================
   SERVICES — AIGIERIE WEB APP AUTOMATION
   ======================================== */
.services-section {
  padding: var(--section-padding);
  position: relative;
  background: var(--bg-gradient-section);
  overflow: hidden;
}

.services-section::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.services-section::after {
  content: '';
  position: absolute;
  bottom: -200px;
  left: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.services-section .container {
  text-align: center;
  position: relative;
  z-index: 2;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 20px;
}

/* Service Card */
.service-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 40px 32px 32px;
  text-align: left;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.service-card:hover {
  transform: translateY(-10px);
  border-color: transparent;
}

/* Per-service accent top bar */
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
  transition: height var(--transition-smooth);
}

.service-card:hover::before {
  height: 4px;
}

.service-web::before {
  background: linear-gradient(90deg, #00d4ff, #3b82f6);
}
.service-web:hover {
  box-shadow: 0 20px 60px rgba(0, 212, 255, 0.15), 0 0 80px rgba(0, 212, 255, 0.05);
}

.service-mobile::before {
  background: linear-gradient(90deg, #8b5cf6, #a78bfa);
}
.service-mobile:hover {
  box-shadow: 0 20px 60px rgba(139, 92, 246, 0.15), 0 0 80px rgba(139, 92, 246, 0.05);
}

.service-automation::before {
  background: linear-gradient(90deg, #f59e0b, #ef4444);
}
.service-automation:hover {
  box-shadow: 0 20px 60px rgba(245, 158, 11, 0.15), 0 0 80px rgba(245, 158, 11, 0.05);
}

/* Service card glow — background decoration */
.service-card-glow {
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  opacity: 0;
  transition: opacity var(--transition-smooth);
  pointer-events: none;
}

.service-card:hover .service-card-glow {
  opacity: 1;
}

.service-web .service-card-glow {
  background: radial-gradient(circle, rgba(0, 212, 255, 0.12) 0%, transparent 70%);
}
.service-mobile .service-card-glow {
  background: radial-gradient(circle, rgba(139, 92, 246, 0.12) 0%, transparent 70%);
}
.service-automation .service-card-glow {
  background: radial-gradient(circle, rgba(245, 158, 11, 0.12) 0%, transparent 70%);
}

/* Service Icon */
.service-icon-wrapper {
  position: relative;
  width: 72px;
  height: 72px;
  margin-bottom: 24px;
}

.service-icon {
  position: relative;
  z-index: 2;
  width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.service-icon svg {
  width: 36px;
  height: 36px;
}

.service-web .service-icon {
  background: rgba(0, 212, 255, 0.12);
  border: 1px solid rgba(0, 212, 255, 0.2);
  color: #00d4ff;
}

.service-mobile .service-icon {
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.2);
  color: #8b5cf6;
}

.service-automation .service-icon {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.2);
  color: #f59e0b;
}

.service-card:hover .service-icon {
  transform: scale(1.08);
}

.service-web:hover .service-icon {
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.25);
}
.service-mobile:hover .service-icon {
  box-shadow: 0 0 30px rgba(139, 92, 246, 0.25);
}
.service-automation:hover .service-icon {
  box-shadow: 0 0 30px rgba(245, 158, 11, 0.25);
}

/* Service icon pulse ring */
.service-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  z-index: 1;
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.service-card:hover .service-pulse {
  opacity: 1;
  animation: servicePulse 2s ease-in-out infinite;
}

@keyframes servicePulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
  50% { transform: translate(-50%, -50%) scale(1.35); opacity: 0; }
}

.service-web .service-pulse { border: 2px solid rgba(0, 212, 255, 0.3); }
.service-mobile .service-pulse { border: 2px solid rgba(139, 92, 246, 0.3); }
.service-automation .service-pulse { border: 2px solid rgba(245, 158, 11, 0.3); }

/* Service Number */
.service-number {
  font-family: var(--font-heading);
  font-size: 4rem;
  font-weight: 800;
  position: absolute;
  top: 24px;
  right: 28px;
  line-height: 1;
  opacity: 0.04;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

.service-card:hover .service-number {
  opacity: 0.08;
}

/* Service content */
.service-card h3 {
  font-size: 1.2rem;
  margin-bottom: 14px;
  line-height: 1.35;
}

.service-card > p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 24px;
}

/* Service features list */
.service-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.service-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.service-card:hover .service-feature-item {
  color: var(--text-primary);
}

.service-check {
  font-size: 0.7rem;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.service-web .service-check {
  color: #00d4ff;
  background: rgba(0, 212, 255, 0.1);
}
.service-mobile .service-check {
  color: #8b5cf6;
  background: rgba(139, 92, 246, 0.1);
}
.service-automation .service-check {
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.1);
}

/* Service CTA Button */
.service-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: var(--font-body);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.service-cta-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.15) 50%, transparent 60%);
  transform: translateX(-100%);
  transition: 0.6s;
}

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

.service-cta-btn:hover {
  transform: translateY(-2px);
}

.service-cta-btn svg {
  transition: transform var(--transition-fast);
}

.service-cta-btn:hover svg {
  transform: translateX(4px);
}

.service-web .service-cta-btn {
  background: linear-gradient(135deg, #00d4ff, #3b82f6);
  box-shadow: 0 4px 15px rgba(0, 212, 255, 0.25);
}
.service-web .service-cta-btn:hover {
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.35);
}

.service-mobile .service-cta-btn {
  background: linear-gradient(135deg, #8b5cf6, #a78bfa);
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.25);
}
.service-mobile .service-cta-btn:hover {
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.35);
}

.service-automation .service-cta-btn {
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.25);
}
.service-automation .service-cta-btn:hover {
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.35);
}

/* ========================================
   DIGITAL ASSETS SECTION
   ======================================== */
.assets-section {
  padding: var(--section-padding);
  position: relative;
  background: var(--bg-gradient-section);
}

.assets-section .container {
  text-align: center;
}

.assets-preview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 20px;
}

.asset-preview-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 32px 20px;
  text-align: center;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.asset-preview-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow-primary);
  border-color: var(--border-glow);
}

.asset-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.asset-preview-card h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.asset-preview-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.5;
}

.asset-count {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: rgba(0, 212, 255, 0.1);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
}

.assets-cta {
  margin-top: 48px;
}

.assets-login-notice {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.assets-login-notice svg {
  width: 16px;
  height: 16px;
  color: var(--primary);
}

/* ========================================
   ABOUT / WHY CHOOSE US
   ======================================== */
.about-section {
  padding: var(--section-padding);
  position: relative;
  background: var(--bg-gradient-alt);
}

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

.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.about-image img {
  width: 100%;
  border-radius: var(--radius-lg);
}

.about-image-glow {
  position: absolute;
  inset: -20px;
  background: radial-gradient(circle at 30% 50%, rgba(0, 212, 255, 0.15), transparent 60%);
  pointer-events: none;
}

.about-content .section-label,
.about-content .section-title {
  text-align: left;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 32px;
}

.about-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.about-feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.about-feature h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.about-feature p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ========================================
   TESTIMONIALS
   ======================================== */
.testimonials-section {
  padding: var(--section-padding);
  position: relative;
  background: var(--bg-gradient-section);
}

.testimonials-section .container {
  text-align: center;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: left;
  transition: var(--transition-smooth);
}

.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.testimonial-stars {
  color: #fbbf24;
  font-size: 1.1rem;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.testimonial-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.testimonial-avatar.av-1 { background: linear-gradient(135deg, var(--primary), var(--secondary)); }
.testimonial-avatar.av-2 { background: linear-gradient(135deg, var(--secondary), var(--accent)); }
.testimonial-avatar.av-3 { background: linear-gradient(135deg, var(--accent), var(--primary)); }

.testimonial-author-info h4 {
  font-size: 0.9rem;
  margin-bottom: 2px;
}

.testimonial-author-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ========================================
   PRICING SECTION
   ======================================== */
.pricing-section {
  padding: var(--section-padding);
  position: relative;
  background: var(--bg-gradient-alt);
}

.pricing-section .container {
  text-align: center;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  transition: var(--transition-smooth);
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: var(--shadow-glow-primary);
  transform: scale(1.05);
}

.pricing-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 20px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 50px;
  white-space: nowrap;
}

.pricing-card.featured:hover {
  transform: scale(1.05) translateY(-6px);
}

.pricing-card h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.pricing-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.pricing-price {
  margin-bottom: 8px;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
}

.pricing-price .currency {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-muted);
  font-family: var(--font-heading);
}

.pricing-price .amount {
  font-size: 3rem;
  font-weight: 800;
  font-family: var(--font-heading);
  background: linear-gradient(135deg, var(--primary), var(--secondary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pricing-credits {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 28px;
}

.pricing-features {
  text-align: left;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.pricing-check {
  color: var(--level-beginner);
  font-weight: 700;
  font-size: 1rem;
}

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

/* ========================================
   FAQ SECTION
   ======================================== */
.faq-section {
  padding: var(--section-padding);
  position: relative;
  background: var(--bg-gradient-alt);
  overflow: hidden;
}

.faq-section::before {
  content: '';
  position: absolute;
  top: -150px;
  left: -150px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.faq-section::after {
  content: '';
  position: absolute;
  bottom: -150px;
  right: -150px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.faq-section .container {
  position: relative;
  z-index: 2;
  text-align: center;
}

/* FAQ Tabs */
.faq-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.faq-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--text-muted);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.faq-tab::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.12), rgba(124, 58, 237, 0.12));
  opacity: 0;
  transition: opacity var(--transition-smooth);
  border-radius: 50px;
}

.faq-tab:hover {
  color: var(--text-primary);
  border-color: rgba(0, 212, 255, 0.3);
  transform: translateY(-2px);
}

.faq-tab:hover::before {
  opacity: 1;
}

.faq-tab.active {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-color: transparent;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.faq-tab.active::before {
  opacity: 0;
}

.faq-tab svg {
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.faq-tab.active svg,
.faq-tab:hover svg {
  opacity: 1;
}

/* FAQ Category Panels */
.faq-category {
  display: none;
  max-width: 800px;
  margin: 0 auto;
}

.faq-category.active {
  display: block;
  animation: faqFadeIn 0.4s ease-out;
}

@keyframes faqFadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* FAQ Items */
.faq-item {
  margin-bottom: 12px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.faq-item:hover {
  border-color: rgba(0, 212, 255, 0.2);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.faq-item.open {
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 8px 32px rgba(0, 212, 255, 0.08);
}

/* FAQ Question Button */
.faq-question {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 20px 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  text-align: left;
  transition: var(--transition-fast);
}

.faq-question:hover {
  background: rgba(255, 255, 255, 0.02);
}

.faq-q-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(124, 58, 237, 0.15));
  color: var(--primary);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: var(--transition-smooth);
}

.faq-item.open .faq-q-icon {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.25);
}

.faq-q-text {
  flex: 1;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
}

.faq-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  flex-shrink: 0;
  transition: var(--transition-smooth);
  color: var(--text-muted);
}

.faq-toggle svg {
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.faq-item.open .faq-toggle {
  background: rgba(0, 212, 255, 0.1);
  border-color: rgba(0, 212, 255, 0.3);
  color: var(--primary);
}

.faq-item.open .faq-toggle svg {
  transform: rotate(45deg);
}

/* FAQ Answer */
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              padding 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.3s ease;
  opacity: 0;
  padding: 0 24px 0 76px;
}

.faq-item.open .faq-answer {
  max-height: 600px;
  opacity: 1;
  padding: 0 24px 24px 76px;
}

.faq-answer p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 12px;
  text-align: left;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-answer strong {
  color: var(--text-primary);
  font-weight: 600;
}

.faq-answer ul,
.faq-answer ol {
  margin: 8px 0 16px;
  padding: 0;
  list-style: none;
}

.faq-answer li {
  padding: 4px 0;
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  text-align: left;
}

.faq-answer li strong {
  color: var(--primary-light);
}

/* FAQ CTA link inside answer */
.faq-cta-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: var(--transition-fast);
  padding: 8px 0;
}

.faq-cta-link:hover {
  color: var(--primary-light);
  text-decoration: underline;
}

/* FAQ Bottom CTA */
.faq-bottom-cta {
  margin-top: 48px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.faq-bottom-cta::before {
  content: '';
  position: absolute;
  inset: -50%;
  background: radial-gradient(circle at 30% 50%, rgba(0, 212, 255, 0.04), transparent 50%),
              radial-gradient(circle at 70% 50%, rgba(124, 58, 237, 0.04), transparent 50%);
  pointer-events: none;
}

.faq-bottom-cta p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 16px;
  position: relative;
}

.faq-bottom-cta .btn {
  position: relative;
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta-section {
  padding: var(--section-padding);
  position: relative;
  background: var(--bg-gradient-section);
}

.cta-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-wrapper::before {
  content: '';
  position: absolute;
  inset: -50%;
  background: radial-gradient(circle at 30% 30%, rgba(0, 212, 255, 0.08), transparent 50%),
              radial-gradient(circle at 70% 70%, rgba(124, 58, 237, 0.08), transparent 50%);
  animation: glowPulse 6s ease-in-out infinite;
  pointer-events: none;
}

.cta-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin-bottom: 16px;
  position: relative;
}

.cta-text {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
  position: relative;
}

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

/* ========================================
   FOOTER
   ======================================== */
.footer {
  padding: 64px 0 0;
  background: var(--bg-darker);
  border-top: 1px solid var(--border-glass);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.footer-brand .logo-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 900;
  color: #fff;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.footer-social a:hover {
  background: var(--bg-glass-hover);
  color: var(--primary);
  border-color: var(--border-glow);
  transform: translateY(-3px);
}

.footer-column h4 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-column a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.footer-column a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  border-top: 1px solid var(--border-glass);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: var(--text-muted);
  transition: var(--transition-fast);
}

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

/* ========================================
   MODALS
   ======================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 5, 16, 0.85);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-overlay.active {
  display: flex;
  animation: modalFadeIn 0.3s ease-out;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalSlideIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}

.modal-sm { max-width: 440px; }
.modal-lg { max-width: 900px; }

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 1.2rem;
  transition: var(--transition-fast);
  z-index: 10;
}

.modal-close:hover {
  background: var(--bg-glass-hover);
  color: var(--text-primary);
  transform: rotate(90deg);
}

.modal-header {
  padding: 40px 40px 0;
  text-align: center;
}

.modal-header h2 {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.modal-header p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.modal-body {
  padding: 32px 40px 40px;
}

/* Auth Form */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input {
  padding: 12px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font-body);
  outline: none;
  transition: var(--transition-fast);
}

.form-group input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-group input::placeholder {
  color: var(--text-muted);
}

.form-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

.form-link {
  font-size: 0.85rem;
  color: var(--primary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.form-link:hover {
  color: var(--primary-light);
}

.form-submit {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-body);
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.3);
}

.form-divider {
  text-align: center;
  position: relative;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin: 4px 0;
}

.form-divider::before,
.form-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 40%;
  height: 1px;
  background: var(--border-glass);
}

.form-divider::before { left: 0; }
.form-divider::after { right: 0; }

.form-footer {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 8px;
}

.form-footer a {
  color: var(--primary);
  font-weight: 600;
  cursor: pointer;
}

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

/* Approval Notice */
.approval-notice {
  display: none;
  text-align: center;
  padding: 32px;
}

.approval-notice.active {
  display: block;
}

.approval-icon {
  font-size: 4rem;
  margin-bottom: 16px;
}

.approval-notice h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--level-beginner);
}

.approval-notice p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Digital Asset Store Modal */
.store-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.store-search {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  flex: 1;
  max-width: 300px;
}

.store-search input {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-body);
  outline: none;
  width: 100%;
}

.store-search input::placeholder {
  color: var(--text-muted);
}

.store-filters {
  display: flex;
  gap: 8px;
}

.store-filter {
  padding: 8px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  font-family: var(--font-body);
  transition: var(--transition-fast);
}

.store-filter:hover,
.store-filter.active {
  background: rgba(0, 212, 255, 0.1);
  border-color: var(--primary);
  color: var(--primary);
}

.store-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.store-item {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: var(--transition-smooth);
}

.store-item:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-primary);
}

.store-item-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.store-item h4 {
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.store-item p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.5;
}

.store-item-price {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: rgba(0, 212, 255, 0.1);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}

.store-item .btn-sm {
  width: 100%;
  justify-content: center;
}



/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-visual-inner {
    width: 360px;
    height: 360px;
  }

  .hero-ring:nth-child(2) { width: 240px; height: 240px; }
  .hero-ring:nth-child(3) { width: 300px; height: 300px; }
  .hero-ring:nth-child(4) { width: 350px; height: 350px; }

  .hero-orb { width: 200px; height: 200px; }

  .courses-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-card.featured { transform: none; }
  .pricing-card.featured:hover { transform: translateY(-6px); }
  .assets-preview-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; gap: 32px; }

  .store-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links,
  .nav-auth,
  .nav-user {
    display: none;
  }

  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 10, 26, 0.98);
    backdrop-filter: blur(24px);
    padding: 24px;
    border-bottom: 1px solid var(--border-glass);
    gap: 16px;
  }

  .nav-auth.active,
  .nav-user.active {
    display: flex;
  }

  .mobile-toggle {
    display: flex;
  }

  .nav-links.active .mobile-auth {
    display: flex;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border-glass);
  }

  .hero-title {
    font-size: clamp(2rem, 7vw, 3rem);
  }

  .hero-visual { display: none; }

  .hero-stats {
    flex-direction: column;
    gap: 20px;
    align-items: center;
  }

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

  .hero-buttons {
    justify-content: center;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item:nth-child(odd),
  .timeline-item:nth-child(even) {
    padding-right: 0;
    padding-left: 52px;
    text-align: left;
    flex-direction: row;
  }

  .timeline-dot {
    left: 20px;
  }

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

  .faq-tabs {
    flex-direction: column;
    align-items: center;
  }

  .faq-tab {
    width: 100%;
    max-width: 340px;
    justify-content: center;
  }

  .faq-question {
    padding: 16px 18px;
    gap: 12px;
  }

  .faq-q-text {
    font-size: 0.9rem;
  }

  .faq-answer {
    padding: 0 18px 0 18px;
  }

  .faq-item.open .faq-answer {
    padding: 0 18px 20px 18px;
  }

  .faq-q-icon {
    display: none;
  }

  .faq-bottom-cta {
    padding: 24px 20px;
  }

  .assets-preview-grid { grid-template-columns: 1fr; }

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

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .store-grid { grid-template-columns: 1fr; }
  .store-header { flex-direction: column; }
  .store-search { max-width: 100%; }

  .modal-header { padding: 32px 24px 0; }
  .modal-body { padding: 24px; }
}

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

  .section-title {
    font-size: 1.6rem;
  }

  .course-level-card {
    padding: 28px 20px;
  }

  .cta-wrapper {
    padding: 40px 24px;
  }

  .faq-q-text {
    font-size: 0.85rem;
  }

  .faq-answer p,
  .faq-answer li {
    font-size: 0.85rem;
  }
}