:root {
  --primary: #10b981;
  --primary-dark: #059669;
  --secondary: #3b82f6;
  --accent: #f59e0b;
  --danger: #ef4444;
  --dark: #0f172a;
  --darker: #020617;
  --light: #f1f5f9;
  --surface: #1e293b;
  --overlay: #64748b;
}

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

body {
  font-family: 'Inter', -apple-system, system-ui, sans-serif;
  background: var(--darker);
  color: var(--light);
  line-height: 1.6;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(2, 6, 23, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid rgba(16, 185, 129, 0.2);
}

.nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a { color: var(--light); text-decoration: none; }
.nav-links a:hover { color: var(--primary); }

.btn-primary {
  background: var(--primary);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); }

.btn-secondary {
  background: transparent;
  color: var(--light);
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  border: 2px solid var(--overlay);
}
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); }

.btn-large { padding: 1rem 2rem; font-size: 1.125rem; }

.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 8rem 2rem 4rem;
  align-items: center;
}

.hero h1 { font-size: 3.5rem; font-weight: 800; line-height: 1.2; margin-bottom: 1.5rem; }
.accent { color: var(--primary); }
.hero-subtitle { font-size: 1.25rem; color: var(--overlay); margin-bottom: 2rem; }
.hero-cta { display: flex; gap: 1rem; margin-bottom: 3rem; }
.hero-stats { display: flex; gap: 3rem; }
.stat { display: flex; flex-direction: column; }
.stat-number { font-size: 2rem; font-weight: 700; color: var(--primary); }
.stat-label { color: var(--overlay); font-size: 0.875rem; }

.odds-card {
  background: var(--surface);
  border-radius: 16px;
  border: 1px solid rgba(16, 185, 129, 0.2);
  overflow: hidden;
}

.game-header {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: rgba(16, 185, 129, 0.1);
  font-size: 1.25rem;
  font-weight: 700;
}

.vs { color: var(--overlay); }

.odds-grid { padding: 1rem; }

.odds-item {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 1rem;
  padding: 0.75rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.book { color: var(--overlay); font-size: 0.875rem; }
.line { font-weight: 600; }
.odds { color: var(--accent); }
.value { font-size: 0.75rem; font-weight: 600; padding: 0.25rem 0.5rem; border-radius: 4px; }
.value.good { background: rgba(16, 185, 129, 0.2); color: var(--primary); }
.value.bad { background: rgba(239, 68, 68, 0.2); color: var(--danger); }

.ai-pick {
  padding: 1rem 1.5rem;
  background: rgba(16, 185, 129, 0.1);
  border-top: 1px solid rgba(16, 185, 129, 0.2);
}

.ai-label { color: var(--primary); font-weight: 600; margin-right: 0.5rem; }
.ai-recommendation { font-weight: 600; }

.features, .sports, .pricing {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.features h2, .sports h2, .pricing h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
}

.features-grid, .sports-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-card, .sport-card {
  background: var(--surface);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid rgba(16, 185, 129, 0.1);
  transition: all 0.3s;
}

.feature-card:hover, .sport-card:hover {
  border-color: var(--primary);
  transform: translateY(-5px);
}

.feature-icon, .sport-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.feature-card h3, .sport-card h3 { font-size: 1.25rem; margin-bottom: 0.75rem; }
.feature-card p, .sport-card p { color: var(--overlay); }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--surface);
  padding: 2.5rem;
  border-radius: 12px;
  border: 1px solid rgba(16, 185, 129, 0.1);
  text-align: center;
}

.pricing-card.featured { border-color: var(--primary); transform: scale(1.05); }
.pricing-card h3 { font-size: 1.5rem; margin-bottom: 1rem; }
.price { font-size: 3rem; font-weight: 700; color: var(--primary); }
.pricing-card p { color: var(--overlay); margin-bottom: 2rem; }
.pricing-card ul { list-style: none; margin-bottom: 2rem; }
.pricing-card li { padding: 0.75rem 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
.pricing-card .btn-primary { width: 100%; }

.cta-section {
  padding: 6rem 2rem;
  text-align: center;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
}
.cta-section h2 { font-size: 2.5rem; margin-bottom: 1rem; }
.cta-section p { font-size: 1.25rem; margin-bottom: 2rem; opacity: 0.9; }
.cta-section .btn-primary { background: white; color: var(--primary); }
.cta-section .btn-primary:hover { background: var(--dark); color: white; }

.footer {
  background: var(--dark);
  padding: 4rem 2rem 2rem;
}
.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}
.footer-brand p { color: var(--overlay); margin-top: 0.5rem; }
.footer-links { display: flex; flex-direction: column; gap: 0.75rem; }
.footer-links a { color: var(--light); text-decoration: none; }
.footer-links a:hover { color: var(--primary); }
.footer-bottom {
  max-width: 1200px;
  margin: 3rem auto 0;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  text-align: center;
  color: var(--overlay);
  font-size: 0.875rem;
}

@media (max-width: 768px) {
  .hero { grid-template-columns: 1fr; text-align: center; }
  .hero h1 { font-size: 2.5rem; }
  .hero-cta, .hero-stats { justify-content: center; }
  .nav-links { display: none; }
}

html { scroll-behavior: smooth; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }