@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@500;700&display=swap');

:root {
  --bg-main: #0B0F19;
  --bg-card: rgba(20, 26, 45, 0.75);
  --bg-card-hover: rgba(28, 36, 62, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(99, 102, 241, 0.35);
  --primary: #6366F1;
  --primary-glow: rgba(99, 102, 241, 0.25);
  --cyan: #06B6D4;
  --cyan-glow: rgba(6, 182, 212, 0.2);
  --amber: #F59E0B;
  --emerald: #10B981;
  --rose: #F43F5E;
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-sans);
}

body {
  min-height: 100vh;
  line-height: 1.68;
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 30%, rgba(6, 182, 212, 0.10) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
  background-attachment: fixed;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Container */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Navigation */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(11, 15, 25, 0.82);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--cyan) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  box-shadow: 0 0 16px var(--primary-glow);
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-title span {
  color: var(--cyan);
}

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

nav.main-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  transition: color 0.2s ease;
}

nav.main-nav a:hover,
nav.main-nav a.active {
  color: var(--text-main);
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: linear-gradient(135deg, var(--primary) 0%, #4F46E5 100%);
  color: #fff;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.88rem;
  text-decoration: none;
  box-shadow: 0 4px 18px var(--primary-glow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.4);
}

/* Hero Section */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid var(--border-accent);
  border-radius: 999px;
  color: #C7D2FE;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--emerald);
  box-shadow: 0 0 8px var(--emerald);
}

h1.hero-title {
  font-size: 3.4rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

.gradient-text {
  background: linear-gradient(135deg, #FFFFFF 20%, #A5B4FC 60%, var(--cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

p.hero-subtitle {
  font-size: 1.22rem;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid var(--border-subtle);
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 880px;
  margin: 0 auto;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 20px;
  text-align: center;
  backdrop-filter: blur(12px);
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 4px;
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-dim);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Sections */
section.content-section {
  padding: 60px 0;
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}

.section-tag {
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: block;
}

h2.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

p.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
}

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

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

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  padding: 32px 28px;
  backdrop-filter: blur(12px);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

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

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.icon-indigo { background: rgba(99, 102, 241, 0.16); color: #818CF8; }
.icon-cyan { background: rgba(6, 182, 212, 0.16); color: #22D3EE; }
.icon-amber { background: rgba(245, 158, 11, 0.16); color: #FBBF24; }
.icon-emerald { background: rgba(16, 185, 129, 0.16); color: #34D399; }
.icon-rose { background: rgba(244, 63, 94, 0.16); color: #FB7185; }

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.card-text {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Rules / How to play */
.rule-box {
  background: rgba(20, 26, 45, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  padding: 32px;
  margin-bottom: 24px;
}

.rule-number {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  font-size: 0.85rem;
  margin-bottom: 14px;
  font-family: var(--font-mono);
}

/* FAQ Accordion */
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  margin-bottom: 16px;
  padding: 24px 28px;
}

.faq-question {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}

.faq-answer {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* Policy Document Layout */
.policy-wrap {
  max-width: 860px;
  margin: 40px auto 80px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 24px;
  padding: 48px;
  backdrop-filter: blur(14px);
}

.policy-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  border-radius: 8px;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #6EE7B7;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.policy-header {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 28px;
  margin-bottom: 36px;
}

.policy-header h1 {
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.policy-meta {
  color: var(--text-dim);
  font-size: 0.88rem;
  font-family: var(--font-mono);
}

.policy-content h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 36px 0 16px;
  color: var(--text-main);
  border-left: 3px solid var(--primary);
  padding-left: 14px;
}

.policy-content h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 22px 0 10px;
  color: #E2E8F0;
}

.policy-content p {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.75;
  margin-bottom: 16px;
}

.policy-content ul {
  list-style: none;
  margin-bottom: 20px;
}

.policy-content ul li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 10px;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.65;
}

.policy-content ul li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-weight: 800;
}

.callout-box {
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid var(--border-accent);
  border-radius: 14px;
  padding: 20px 24px;
  margin: 24px 0;
}

.callout-title {
  font-weight: 700;
  color: #C7D2FE;
  margin-bottom: 6px;
  font-size: 0.98rem;
}

.callout-text {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* Footer */
footer.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: rgba(11, 15, 25, 0.95);
  padding: 50px 0 30px;
  color: var(--text-dim);
  font-size: 0.9rem;
}

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

.footer-brand p {
  margin-top: 12px;
  max-width: 380px;
  line-height: 1.6;
}

.footer-col h4 {
  color: var(--text-main);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

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

/* Responsive adjustments */
@media (max-width: 900px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  h1.hero-title { font-size: 2.5rem; }
  .policy-wrap { padding: 28px 20px; }
}

@media (max-width: 600px) {
  h1.hero-title { font-size: 2.1rem; }
  p.hero-subtitle { font-size: 1.05rem; }
  nav.main-nav { display: none; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}