:root {
  --bg-primary: #0d1117; --bg-secondary: #161b22; --bg-tertiary: #1c2128; --bg-card: #21262d; --bg-hover: #292e36;
  --text-primary: #e6edf3; --text-secondary: #8b949e; --text-muted: #6e7681;
  --border-color: #30363d; --border-light: #21262d;
  --blue: #58a6ff; --green: #3fb950; --purple: #bc8cff; --orange: #f0883e; --cyan: #79c0ff; --pink: #f778ba; --yellow: #e3b341; --red: #f85149;
  --blue-dim: rgba(88,166,255,0.15); --green-dim: rgba(63,185,80,0.15); --purple-dim: rgba(188,140,255,0.15); --orange-dim: rgba(240,136,62,0.15); --cyan-dim: rgba(121,192,255,0.15); --pink-dim: rgba(247,120,186,0.15); --yellow-dim: rgba(227,179,65,0.15); --red-dim: rgba(248,81,73,0.15);
  --gradient-hero: linear-gradient(135deg, #0d1117 0%, #161b40 30%, #1a1040 60%, #0d1117 100%);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3); --shadow-md: 0 4px 12px rgba(0,0,0,0.4); --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
  --radius-sm: 6px; --radius-md: 10px; --radius-lg: 16px;
  --font-sans: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Cascadia Code', 'Fira Code', Consolas, monospace;
  --nav-height: 64px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-sans); background: var(--bg-primary); color: var(--text-primary); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: var(--cyan); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--blue); text-decoration: underline; }
h1, h2, h3, h4 { line-height: 1.3; }
h2 { font-size: 1.6rem; margin: 2.5rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--border-color); }
h3 { font-size: 1.25rem; margin: 2rem 0 0.75rem; }
.navbar { position: sticky; top: 0; z-index: 1000; background: rgba(13,17,23,0.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border-color); height: var(--nav-height); display: flex; align-items: center; padding: 0 2rem; }
.nav-inner { max-width: 1200px; width: 100%; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 1.15rem; font-weight: 700; color: var(--text-primary); text-decoration: none; }
.logo:hover { text-decoration: none; color: var(--text-primary); }
.logo-icon { width: 32px; height: 32px; background: linear-gradient(135deg, #1158a6, #58a6ff); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 0.8rem; color: #fff; }
.nav-links { display: flex; align-items: center; gap: 0.25rem; }
.nav-links a { padding: 0.5rem 1rem; border-radius: var(--radius-sm); color: var(--text-secondary); font-size: 0.9rem; font-weight: 500; transition: all 0.2s; }
.nav-links a:hover { color: var(--text-primary); background: var(--bg-tertiary); text-decoration: none; }
.nav-links a.active { color: var(--blue); background: var(--blue-dim); }
.breadcrumb { display: flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1.5rem; flex-wrap: wrap; padding: 1rem 2rem 0; max-width: 1200px; margin: 0 auto; }
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb .sep { color: var(--text-muted); }
.hero { background: var(--gradient-hero); padding: 5rem 2rem 4rem; text-align: center; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%; background: radial-gradient(circle at 30% 50%, rgba(88,166,255,0.08) 0%, transparent 50%), radial-gradient(circle at 70% 50%, rgba(188,140,255,0.08) 0%, transparent 50%); }
.hero-content { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }
.hero h1 { font-size: 3rem; font-weight: 800; margin-bottom: 1rem; }
.hero .subtitle { font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 2rem; }
.hero-badges { display: flex; gap: 0.5rem; justify-content: center; flex-wrap: wrap; margin-bottom: 2rem; }
.hero-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 0.7rem 1.5rem; border-radius: var(--radius-sm); font-weight: 600; font-size: 0.95rem; cursor: pointer; transition: all 0.25s; border: none; text-decoration: none !important; }
.btn-primary { background: var(--blue); color: #fff !important; }
.btn-primary:hover { background: #79b8ff; box-shadow: 0 0 20px rgba(88,166,255,0.3); transform: translateY(-2px); }
.btn-outline { background: transparent; border: 1px solid var(--border-color); color: var(--text-secondary) !important; }
.btn-outline:hover { border-color: var(--blue); color: var(--blue) !important; background: var(--blue-dim); }
.badge { display: inline-flex; align-items: center; padding: 2px 10px; border-radius: 20px; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.3px; text-transform: uppercase; }
.badge-blue { background: var(--blue-dim); color: var(--blue); }
.badge-green { background: var(--green-dim); color: var(--green); }
.badge-purple { background: var(--purple-dim); color: var(--purple); }
.badge-orange { background: var(--orange-dim); color: var(--orange); }
.badge-cyan { background: var(--cyan-dim); color: var(--cyan); }
.badge-pink { background: var(--pink-dim); color: var(--pink); }
.badge-yellow { background: var(--yellow-dim); color: var(--yellow); }
.badge-red { background: var(--red-dim); color: var(--red); }
.section { padding: 4rem 2rem; max-width: 1200px; margin: 0 auto; }
.section-alt { background: var(--bg-secondary); }
.section-title { font-size: 1.8rem; font-weight: 800; margin-bottom: 0.5rem; text-align: center; border: none; }
.section-subtitle { color: var(--text-secondary); text-align: center; margin-bottom: 2rem; font-size: 1rem; }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
.feature-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 1.5rem; transition: all 0.3s; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--text-muted); }
.feature-card h3 { font-size: 1.1rem; margin: 0 0 0.5rem; border: none; }
.feature-card p { color: var(--text-secondary); font-size: 0.9rem; margin: 0; }
pre { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 1.2rem 1.5rem; overflow-x: auto; font-family: var(--font-mono); font-size: 0.85rem; line-height: 1.7; margin: 1rem 0; }
code { font-family: var(--font-mono); font-size: 0.85em; }
:not(pre) > code { background: var(--bg-tertiary); padding: 2px 7px; border-radius: 4px; color: var(--cyan); }
table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: 0.9rem; }
th { background: var(--bg-tertiary); padding: 0.75rem 1rem; text-align: left; font-weight: 600; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 2px solid var(--border-color); }
td { padding: 0.6rem 1rem; border-bottom: 1px solid var(--border-light); }
tr:hover { background: rgba(255,255,255,0.04); }
.footer { background: var(--bg-secondary); border-top: 1px solid var(--border-color); padding: 2rem; margin-top: 4rem; }
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.footer-grid a { color: var(--text-secondary); font-size: 0.85rem; padding: 0.3rem 0; display: block; }
.footer-grid a:hover { color: var(--blue); }
.footer-bottom { text-align: center; color: var(--text-muted); font-size: 0.8rem; padding-top: 1rem; border-top: 1px solid var(--border-color); }
@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .feature-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}