:root {
  --primary: #22c55e;
  --primary-dark: #16a34a;
  --primary-light: #4ade80;
  --accent: #22d3ee;
  --bg-dark: #0b1220;
  --bg-card: #111a2e;
  --bg-card-hover: #162241;
  --text-primary: #f8fafc;
  --text-secondary: #9fb2cc;
  --text-muted: #6b7f99;
  --border: #24314d;
  --warning: #f59e0b;
  --error: #ef4444;
  --gradient-1: linear-gradient(135deg, #22c55e 0%, #06b6d4 100%);
  --gradient-2: linear-gradient(135deg, #0b1220 0%, #111a2e 100%);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}
code, pre, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.header {
  background: rgba(11, 18, 32, 0.75);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(12px);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.875rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
}
.logo-icon {
  width: 34px;
  height: 34px;
  background: var(--gradient-1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}
.logo-text { font-weight: 800; letter-spacing: -0.02em; }
.logo-badge {
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.35);
  color: var(--primary-light);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.nav { display: flex; gap: 0.25rem; flex-wrap: wrap; justify-content: center; }
.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.45rem 0.8rem;
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 600;
  transition: all 0.15s ease;
}
.nav-link:hover { background: var(--bg-card); color: var(--text-primary); }
.nav-link.active { background: rgba(34, 197, 94, 0.12); color: var(--primary-light); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid var(--border);
  transition: all 0.15s ease;
}
.btn-primary { background: var(--gradient-1); border: none; color: #04100a; }
.btn-primary:hover { filter: brightness(1.05); transform: translateY(-1px); }
.btn-secondary { background: var(--bg-card); color: var(--text-primary); }
.btn-secondary:hover { background: var(--bg-card-hover); border-color: rgba(34, 197, 94, 0.35); }

.hero {
  background: var(--gradient-2);
  padding: 3.75rem 1.25rem 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: -200px -200px auto -200px;
  height: 420px;
  background: radial-gradient(ellipse, rgba(34, 197, 94, 0.18) 0%, transparent 65%);
  pointer-events: none;
}
.hero-content { max-width: 820px; margin: 0 auto; position: relative; z-index: 1; }
.hero h1 {
  font-size: clamp(1.9rem, 4.5vw, 2.75rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 0.8rem;
}
.hero p { color: var(--text-secondary); font-size: 1.05rem; max-width: 680px; margin: 0 auto 1.5rem; }
.hero-actions { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 1.25rem; }
.section { padding: 3rem 0; }
.section-title { font-size: 1.5rem; font-weight: 900; letter-spacing: -0.02em; margin-bottom: 0.5rem; }
.section-subtitle { color: var(--text-secondary); margin-bottom: 1.5rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem;
  transition: all 0.2s ease;
}
.card:hover { background: var(--bg-card-hover); border-color: rgba(34, 197, 94, 0.35); transform: translateY(-1px); }
.card h3 { font-size: 1.05rem; font-weight: 800; margin-bottom: 0.35rem; }
.card p { color: var(--text-secondary); font-size: 0.92rem; }
.card a { color: var(--text-primary); text-decoration: none; }
.card a:hover { text-decoration: underline; }

.doc {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
}
.doc h2 { font-size: 1.25rem; font-weight: 900; margin-bottom: 0.75rem; }
.doc h3 { font-size: 1.05rem; font-weight: 800; margin-top: 1.25rem; margin-bottom: 0.5rem; }
.doc p, .doc li { color: var(--text-secondary); }
.doc ul { padding-left: 1.25rem; margin: 0.5rem 0 1rem; }
.doc code { background: rgba(255,255,255,0.06); padding: 0.1rem 0.35rem; border-radius: 6px; }
.doc a { color: var(--accent); text-decoration: none; }
.doc a:hover { text-decoration: underline; }

.footer {
  border-top: 1px solid var(--border);
  background: rgba(17, 26, 46, 0.75);
  padding: 2rem 1.25rem;
  text-align: center;
}
.footer p { color: var(--text-muted); font-size: 0.9rem; }
.footer-links { margin-top: 0.75rem; display: flex; gap: 0.6rem; justify-content: center; flex-wrap: wrap; }
.footer-links a { color: var(--text-secondary); text-decoration: none; }
.footer-links a:hover { color: var(--text-primary); text-decoration: underline; }

@media (max-width: 860px) {
  .header-inner { flex-wrap: wrap; }
  .nav { order: 3; width: 100%; }
}