/* ChronoCode Docs — Matching Design System */

:root {
  --surface-000: #020304;
  --surface-100: #060809;
  --surface-200: #0c0e11;
  --surface-300: #12151a;
  --surface-400: #1a1e25;
  --surface-500: #242a33;
  --text-100: #f0f2f5;
  --text-200: #c8cdd6;
  --text-300: #8a919e;
  --text-400: #5c6370;
  --text-500: #3d4350;
  --lime: #c5f21d;
  --lime-dim: rgba(197, 242, 29, 0.12);
  --indigo: #6366f1;
  --indigo-dim: rgba(99, 102, 241, 0.12);
  --emerald: #10b981;
  --emerald-dim: rgba(16, 185, 129, 0.12);
  --crimson: #ef4444;
  --crimson-dim: rgba(239, 68, 68, 0.12);
  --border-subtle: rgba(255, 255, 255, 0.04);
  --border-default: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.12);
  --radius-md: 6px;
  --radius-lg: 10px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  background: var(--surface-000);
  color: var(--text-100);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.5;
  overflow-x: hidden;
}

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

/* Background */
.bg-dots {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image: radial-gradient(circle, var(--surface-400) 1px, transparent 1px);
  background-size: 24px 24px; opacity: 0.3;
}
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image: linear-gradient(var(--border-subtle) 1px, transparent 1px), linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px);
  background-size: 48px 48px;
}
.bg-grid::after {
  content: ''; position: absolute; left: 0; width: 100%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--indigo), var(--lime), var(--indigo), transparent);
  opacity: 0.15; top: -1px; animation: laser-sweep 10s linear infinite; pointer-events: none;
}
@keyframes laser-sweep { 0% { top: -1px; opacity: 0; } 3% { opacity: 0.15; } 97% { opacity: 0.15; } 100% { top: 100%; opacity: 0; } }

.ambient-orb {
  position: fixed; width: 500px; height: 500px; border-radius: 50%;
  filter: blur(120px); pointer-events: none; z-index: 0;
  transition: left 0.6s cubic-bezier(0.16, 1, 0.3, 1), top 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.ambient-orb.orb-indigo { background: radial-gradient(circle, rgba(99,102,241,0.08) 0%, transparent 70%); top: -100px; left: 20%; }
.ambient-orb.orb-lime { background: radial-gradient(circle, rgba(197,242,29,0.05) 0%, transparent 70%); bottom: -200px; right: 10%; width: 600px; height: 600px; }

.site-wrap { position: relative; z-index: 10; min-height: 100vh; }
.container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* Navbar */
.navbar { position: fixed; top: 0; left: 0; right: 0; height: 52px; background: rgba(6,8,9,0.75); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border-default); z-index: 200; display: flex; align-items: center; }
.navbar-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.nav-brand { display: flex; align-items: center; gap: 8px; font-family: 'Outfit', sans-serif; font-weight: 700; font-size: 15px; color: var(--text-100); }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link { font-size: 13px; font-weight: 500; color: var(--text-300); padding: 6px 10px; border-radius: var(--radius-md); transition: color 0.15s, background 0.15s; }
.nav-link:hover { color: var(--text-100); background: rgba(255,255,255,0.04); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 600; border-radius: var(--radius-md); transition: all 0.25s cubic-bezier(0.16,1,0.3,1); white-space: nowrap; }
.btn-primary { background: linear-gradient(135deg, var(--indigo), #4f46e5); color: #fff; padding: 10px 22px; font-size: 14px; box-shadow: 0 2px 12px rgba(99,102,241,0.25); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 4px 20px rgba(99,102,241,0.35); }
.btn-secondary { background: transparent; color: var(--text-200); border: 1px solid var(--border-strong); padding: 10px 22px; font-size: 14px; }
.btn-secondary:hover { border-color: var(--text-300); color: var(--text-100); background: rgba(255,255,255,0.03); }

/* Cards */
.card { background: var(--surface-100); border: 1px solid var(--border-default); border-radius: var(--radius-lg); box-shadow: 0 1px 2px rgba(0,0,0,0.5), 0 4px 16px rgba(0,0,0,0.3); transition: all 0.3s cubic-bezier(0.16,1,0.3,1); }
.card:hover { border-color: var(--border-strong); }
.card-glass { background: rgba(6,8,9,0.5); backdrop-filter: blur(16px); border: 1px solid var(--border-default); border-radius: var(--radius-lg); box-shadow: 0 1px 2px rgba(0,0,0,0.5), 0 4px 16px rgba(0,0,0,0.3); }

/* Tags */
.tag { display: inline-flex; align-items: center; gap: 6px; font-family: 'JetBrains Mono', monospace; font-size: 10px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; }
.tag-lime { color: var(--lime); background: var(--lime-dim); }
.tag-indigo { color: var(--indigo); background: var(--indigo-dim); }
.tag-icon { width: 12px; height: 12px; }

/* Hero */
.hero { min-height: 70vh; display: flex; flex-direction: column; justify-content: center; padding-top: 52px; padding-bottom: 32px; }
.hero-content { text-align: center; max-width: 720px; margin: 0 auto; }
.hero-title { font-family: 'Outfit', sans-serif; font-size: clamp(32px,5vw,52px); font-weight: 800; line-height: 1.05; letter-spacing: -0.03em; margin-bottom: 16px; background: linear-gradient(180deg, var(--text-100) 0%, var(--text-300) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-desc { font-size: 15px; color: var(--text-300); line-height: 1.6; max-width: 520px; margin: 0 auto 24px auto; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Sections */
.section-sm { padding: 40px 0; }
.section-head { margin-bottom: 32px; text-align: center; }
.section-title { font-family: 'Outfit', sans-serif; font-size: 26px; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 8px; }
.section-desc { font-size: 14px; color: var(--text-300); max-width: 440px; margin: 0 auto; }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.feature-card { padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.feature-card:hover { transform: translateY(-2px); }
.feature-icon-wrap { width: 36px; height: 36px; border-radius: var(--radius-md); background: var(--indigo-dim); border: 1px solid rgba(99,102,241,0.15); display: flex; align-items: center; justify-content: center; color: var(--indigo); transition: all 0.2s; }
.feature-card:hover .feature-icon-wrap { background: var(--indigo); color: #fff; box-shadow: 0 0 16px rgba(99,102,241,0.3); }
.feature-icon-wrap svg { width: 18px; height: 18px; }
.feature-title { font-size: 15px; font-weight: 600; color: var(--text-100); }
.feature-desc { font-size: 13px; color: var(--text-300); line-height: 1.5; }

/* Footer */
.footer { border-top: 1px solid var(--border-default); background: var(--surface-100); padding: 20px 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; }
.footer-left { font-size: 11px; color: var(--text-400); }
.footer-links { display: flex; gap: 16px; }
.footer-link { font-size: 11px; color: var(--text-400); transition: color 0.15s; }
.footer-link:hover { color: var(--text-200); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s cubic-bezier(0.16,1,0.3,1), transform 0.6s cubic-bezier(0.16,1,0.3,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Toast */
.toast { position: fixed; bottom: 20px; right: 20px; background: var(--surface-300); border: 1px solid var(--border-strong); color: var(--text-100); padding: 10px 18px; border-radius: var(--radius-md); font-size: 12px; font-weight: 500; box-shadow: 0 4px 24px rgba(0,0,0,0.6); transform: translateY(80px); opacity: 0; transition: all 0.35s cubic-bezier(0.16,1,0.3,1); z-index: 1000; }
.toast.show { transform: translateY(0); opacity: 1; }

/* Demo node buttons */
.node-btn { background: none; border: 1px solid transparent; cursor: pointer; text-align: left; transition: all 0.15s; }
.node-btn:hover { background: rgba(255,255,255,0.02); }
.node-btn.active { background: var(--indigo-dim); border-color: rgba(99,102,241,0.2); }

@media (max-width: 768px) {
  .hero { min-height: auto; padding-top: 80px; }
  .hero-title { font-size: 28px; }
  .features-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}