@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');

/* ============ VARIABLES ============ */
:root {
  --bg: #080C18;
  --surface: #0F1625;
  --card: #161E30;
  --card-hover: #1C2840;
  --border: rgba(255,255,255,0.07);
  --border-light: rgba(255,255,255,0.12);

  --primary: #F97316;
  --primary-light: #FB923C;
  --primary-dark: #EA6B0E;
  --primary-glow: rgba(249,115,22,0.3);

  --secondary: #EAB308;
  --secondary-light: #FCD34D;
  --secondary-glow: rgba(234,179,8,0.25);

  --accent: #06B6D4;
  --accent-light: #22D3EE;
  --accent-glow: rgba(6,182,212,0.25);

  --success: #22C55E;
  --warning: #F59E0B;
  --error: #EF4444;

  --text: #F9FAFB;
  --text-muted: #9CA3AF;
  --text-dim: #6B7280;

  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
  --shadow-primary: 0 4px 24px rgba(249,115,22,0.4);

  --nav-height: 72px;
  --transition: 0.2s ease;
  --transition-slow: 0.4s ease;
}

/* ============ RESET ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul { list-style: none; }

/* ============ TYPOGRAPHY ============ */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }
p { line-height: 1.7; }

/* ============ NAVBAR ============ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: rgba(8,12,24,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: background var(--transition);
}
.navbar.scrolled { background: rgba(8,12,24,0.97); }
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  flex-shrink: 0;
}
.nav-logo .logo-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.nav-logo .logo-text { color: var(--text); }
.nav-logo .logo-text span { color: var(--primary); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.nav-links a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text);
  background: rgba(255,255,255,0.06);
}
.nav-links a.active { color: var(--primary); }
.nav-cta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.btn-nav {
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition);
}
.btn-nav-ghost {
  color: var(--text-muted);
  border: 1px solid var(--border-light);
}
.btn-nav-ghost:hover { color: var(--text); border-color: var(--primary); }
.btn-nav-primary {
  background: var(--primary);
  color: white;
}
.btn-nav-primary:hover { background: var(--primary-light); box-shadow: var(--shadow-primary); }
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px;
  cursor: pointer;
}
.nav-hamburger span {
  display: block;
  height: 2px;
  background: var(--text-muted);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0; right: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  z-index: 999;
  flex-direction: column;
  gap: 4px;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-weight: 500;
  transition: all var(--transition);
}
.nav-mobile a:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.nav-mobile .nav-mobile-cta { margin-top: 8px; display: flex; flex-direction: column; gap: 8px; }
.nav-mobile .btn-nav { width: 100%; text-align: center; padding: 12px; }

/* ============ FOOTER ============ */
footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  margin-top: auto;
}
.footer-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 24px 40px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
}
.footer-brand .brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 14px;
}
.footer-brand .brand-logo .logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
}
.footer-brand p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}
.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(34,197,94,0.12);
  border: 1px solid rgba(34,197,94,0.25);
  color: var(--success);
  padding: 5px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}
.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col ul a {
  font-size: 0.875rem;
  color: var(--text-dim);
  transition: color var(--transition);
}
.footer-col ul a:hover { color: var(--primary); }
.footer-disclaimer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 32px;
}
.disclaimer-box {
  background: rgba(239,68,68,0.06);
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: var(--radius);
  padding: 20px 24px;
}
.disclaimer-box h5 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--error);
  margin-bottom: 8px;
}
.disclaimer-box p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.disclaimer-box p a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.disclaimer-box p a:hover { color: var(--accent-light); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 24px;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-dim);
}
.footer-age-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(249,115,22,0.1);
  border: 1px solid rgba(249,115,22,0.25);
  color: var(--primary);
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
}

/* ============ AGE MODAL ============ */
.age-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.age-modal {
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  max-width: 480px;
  width: 100%;
  text-align: center;
  animation: modalIn 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.85) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.age-modal .age-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px; height: 72px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  font-size: 1.8rem;
  font-weight: 900;
  color: white;
  margin: 0 auto 24px;
  font-family: var(--font-heading);
}
.age-modal h2 {
  font-size: 1.6rem;
  margin-bottom: 12px;
  color: var(--text);
}
.age-modal p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  line-height: 1.6;
}
.age-checkbox-wrap {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 20px;
  text-align: left;
  cursor: pointer;
  transition: border-color var(--transition);
}
.age-checkbox-wrap:hover { border-color: var(--primary); }
.age-checkbox-wrap input[type="checkbox"] {
  width: 18px; height: 18px;
  accent-color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
  cursor: pointer;
}
.age-checkbox-wrap label {
  font-size: 0.875rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1.5;
}
.age-checkbox-wrap label strong { color: var(--text); }
.age-confirm-btn {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: white;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-heading);
  transition: all var(--transition);
  opacity: 0.4;
  pointer-events: none;
}
.age-confirm-btn.enabled {
  opacity: 1;
  pointer-events: all;
}
.age-confirm-btn.enabled:hover {
  background: var(--primary-light);
  box-shadow: var(--shadow-primary);
  transform: translateY(-1px);
}
.age-modal .age-warning {
  margin-top: 16px;
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ============ COOKIE BANNER ============ */
.cookie-banner {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 48px);
  max-width: 720px;
  background: var(--card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 5000;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.4s ease;
  flex-wrap: wrap;
}
@keyframes slideUp {
  from { transform: translateX(-50%) translateY(100px); opacity: 0; }
  to { transform: translateX(-50%) translateY(0); opacity: 1; }
}
.cookie-banner.hidden { display: none; }
.cookie-banner p {
  flex: 1;
  font-size: 0.85rem;
  color: var(--text-muted);
  min-width: 200px;
}
.cookie-banner p a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.cookie-actions { display: flex; gap: 8px; flex-shrink: 0; flex-wrap: wrap; }
.btn-cookie-accept {
  padding: 9px 18px;
  background: var(--primary);
  color: white;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition);
}
.btn-cookie-accept:hover { background: var(--primary-light); }
.btn-cookie-reject {
  padding: 9px 18px;
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition);
}
.btn-cookie-reject:hover { color: var(--text); border-color: rgba(255,255,255,0.2); }

/* ============ COMMON COMPONENTS ============ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-glow);
  border: 1px solid rgba(249,115,22,0.3);
  color: var(--primary-light);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 { margin-bottom: 16px; }
.section-header p { color: var(--text-muted); max-width: 560px; margin: 0 auto; }

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-heading);
  transition: all var(--transition);
  border: 1px solid transparent;
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  box-shadow: var(--shadow-primary);
  transform: translateY(-2px);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: transparent;
  color: var(--text);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-heading);
  border: 1px solid var(--border-light);
  transition: all var(--transition);
}
.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-glow);
}
.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: linear-gradient(135deg, var(--accent), #0891B2);
  color: white;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-heading);
  transition: all var(--transition);
}
.btn-accent:hover {
  box-shadow: 0 4px 24px var(--accent-glow);
  transform: translateY(-2px);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}
.card:hover {
  background: var(--card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.tag-orange { background: var(--primary-glow); color: var(--primary-light); border: 1px solid rgba(249,115,22,0.3); }
.tag-cyan { background: var(--accent-glow); color: var(--accent-light); border: 1px solid rgba(6,182,212,0.3); }
.tag-gold { background: var(--secondary-glow); color: var(--secondary-light); border: 1px solid rgba(234,179,8,0.3); }
.tag-green { background: rgba(34,197,94,0.12); color: #4ADE80; border: 1px solid rgba(34,197,94,0.25); }

.page-hero {
  padding: calc(var(--nav-height) + 64px) 0 64px;
  text-align: center;
}
.page-hero h1 { margin-bottom: 16px; }
.page-hero p {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

.divider { height: 1px; background: var(--border); margin: 48px 0; }

/* ============ GRADIENT ACCENTS ============ */
.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.gradient-text-cyan {
  background: linear-gradient(135deg, var(--accent), #8B5CF6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============ PAGE CONTENT ============ */
.content-section {
  max-width: 840px;
  margin: 0 auto;
  padding: calc(var(--nav-height) + 48px) 24px 80px;
}
.content-section h1 { margin-bottom: 8px; }
.content-section .last-updated {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.content-section h2 {
  font-size: 1.35rem;
  margin: 36px 0 12px;
  color: var(--primary-light);
}
.content-section h3 { font-size: 1.1rem; margin: 24px 0 8px; }
.content-section p { color: var(--text-muted); margin-bottom: 14px; }
.content-section ul, .content-section ol {
  color: var(--text-muted);
  padding-left: 24px;
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.content-section ul { list-style: disc; }
.content-section ol { list-style: decimal; }
.content-section a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }

/* ============ GRID ============ */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ============ COIN BALANCE ============ */
.coin-display {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--secondary-glow);
  border: 1px solid rgba(234,179,8,0.35);
  color: var(--secondary-light);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 700;
  font-family: var(--font-heading);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .footer-main { grid-template-columns: 1fr 1fr; gap: 32px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  :root { --nav-height: 64px; }
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .section { padding: 64px 0; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .footer-main { grid-template-columns: 1fr; gap: 24px; }
  .age-modal { padding: 32px 24px; }
  .cookie-banner { bottom: 16px; padding: 16px; }
  .content-section { padding-top: calc(var(--nav-height) + 32px); }
}