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

:root {
  --bg-primary: #0B0B0F;
  --bg-secondary: #141419;
  --bg-card: #1A1A23;
  --bg-card-hover: #22222E;
  --border-color: #2A2A38;
  --border-hover: #3A3A4E;
  --text-primary: #F4F4F5;
  --text-secondary: #A1A1AA;
  --text-tertiary: #71717A;
  --accent-gradient: linear-gradient(135deg, #8861FF, #4B7BFF);
  --accent-purple: #8861FF;
  --accent-blue: #4B7BFF;
  --green: #22C55E;
  --green-bg: rgba(34, 197, 94, 0.1);
  --red: #EF4444;
  --red-bg: rgba(239, 68, 68, 0.1);
  --yellow: #EAB308;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', Menlo, monospace;
  --max-width: 1200px;
  --header-height: 72px;
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* === Scrollbar === */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

/* === Container === */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* === Header/Nav === */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(11, 11, 15, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-logo img {
  height: 28px;
  width: auto;
}

.header-logo-text {
  font-size: 18px;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-logo-version {
  font-size: 13px;
  font-weight: 300;
  color: var(--text-secondary);
  margin-left: 2px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

.header-nav a.active {
  color: var(--text-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-outline {
  padding: 8px 20px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
}

.btn-outline:hover {
  border-color: var(--border-hover);
  background: var(--bg-card);
}

.btn-primary {
  padding: 8px 20px;
  border-radius: 8px;
  background: var(--accent-gradient);
  color: white;
  font-size: 14px;
  font-weight: 600;
  transition: opacity 0.2s;
}

.btn-primary:hover {
  opacity: 0.9;
}

/* === Mobile Menu === */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  cursor: pointer;
  background: none;
  border: none;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s;
}

/* === Hero Section === */
.hero {
  padding: 140px 0 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(136, 97, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(75, 123, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 100px;
  background: rgba(136, 97, 255, 0.1);
  border: 1px solid rgba(136, 97, 255, 0.2);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent-purple);
  margin-bottom: 24px;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
}

.hero h1 {
  font-size: clamp(42px, 7vw, 72px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.hero h1 .gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 640px;
  margin: 0 auto 40px;
}

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

.btn-hero {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  transition: all 0.2s;
}

.btn-hero-primary {
  background: var(--accent-gradient);
  color: white;
}

.btn-hero-primary:hover {
  transform: translateY(-2px);
  opacity: 0.95;
}

.btn-hero-secondary {
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-hero-secondary:hover {
  border-color: var(--border-hover);
  background: var(--bg-card);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  margin-top: 64px;
  padding: 24px 0;
  border-top: 1px solid var(--border-color);
}

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

.hero-stat-value {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.hero-stat-label {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 4px;
}

/* === Market Section === */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent-purple);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* === Prediction Market Card === */
.market-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 40px;
  max-width: 640px;
  margin: 0 auto;
}

.market-card-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.market-card-question {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 32px;
  line-height: 1.3;
}

.market-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.market-option {
  padding: 20px;
  border-radius: 12px;
  border: 2px solid var(--border-color);
  text-align: center;
  transition: all 0.2s;
  cursor: pointer;
  position: relative;
}

.market-option:hover {
  border-color: var(--accent-purple);
  background: rgba(136, 97, 255, 0.05);
}

.market-option.selected {
  border-color: var(--accent-purple);
  background: rgba(136, 97, 255, 0.08);
}

.market-option-label {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.market-option-odds {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
}

.market-option-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  border-radius: 0 0 12px 12px;
  transition: width 0.5s ease;
}

.market-option-bar.yes {
  background: var(--green);
}

.market-option-bar.no {
  background: var(--red);
}

.market-amount {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  margin-bottom: 24px;
}

.market-amount-label {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
}

.market-amount-options {
  display: flex;
  gap: 8px;
}

.market-amount-btn {
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s;
}

.market-amount-btn:hover,
.market-amount-btn.active {
  border-color: var(--accent-purple);
  color: var(--accent-purple);
}

.market-btn {
  width: 100%;
  padding: 16px;
  border-radius: 12px;
  background: var(--accent-gradient);
  color: white;
  font-size: 16px;
  font-weight: 600;
  transition: all 0.2s;
}

.market-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.market-payout {
  text-align: center;
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-tertiary);
}

.market-payout strong {
  color: var(--text-primary);
}

/* === How It Works === */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  transition: all 0.3s;
}

.step-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(136, 97, 255, 0.1);
  border: 1px solid rgba(136, 97, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-purple);
}

.step-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.step-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* === Why This Market === */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s;
}

.feature-card:hover {
  border-color: var(--border-hover);
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(136, 97, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.feature-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* === Volume / Liquidity === */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
}

.stat-card-value {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 4px;
}

.stat-card-label {
  font-size: 13px;
  color: var(--text-tertiary);
}

/* === Related Markets === */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.related-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  transition: all 0.3s;
}

.related-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.related-card-question {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.4;
}

.related-card-odds {
  display: flex;
  justify-content: space-between;
}

.related-card-odds span {
  font-size: 13px;
  font-weight: 500;
}

.related-card-odds .yes-odds {
  color: var(--green);
}

.related-card-odds .no-odds {
  color: var(--red);
}

/* === FAQ === */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-color);
  padding: 20px 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
}

.faq-answer {
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  display: none;
}

.faq-item.open .faq-answer {
  display: block;
}

/* === Footer === */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 48px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-tertiary);
  margin-top: 12px;
  max-width: 280px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--text-tertiary);
  margin-bottom: 10px;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-tertiary);
}

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

.footer-links a {
  color: var(--text-tertiary);
  transition: color 0.2s;
}

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

/* === Background Grid Pattern === */
.bg-grid {
  background-image:
    linear-gradient(var(--border-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* === Responsive === */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

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

@media (max-width: 768px) {
  .header-nav {
    display: none;
  }

  .header-actions .btn-outline {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }

  .market-options {
    grid-template-columns: 1fr;
  }

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

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

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

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

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

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .section {
    padding: 60px 0;
  }

  .market-card {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

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

  .hero-stats {
    gap: 16px;
  }

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

/* === Animations === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

.animate-in.delay-1 { animation-delay: 0.1s; }
.animate-in.delay-2 { animation-delay: 0.2s; }
.animate-in.delay-3 { animation-delay: 0.3s; }
.animate-in.delay-4 { animation-delay: 0.4s; }