:root {
  color-scheme: dark;
  --bg: #05070f;
  --card: #0a0f1f;
  --text: #e6ebff;
  --muted: #9aa6c7;
  --line: #1f2a4a;
  --cyan: #00d4ff;
  --green: #00f59a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at 20% -20%, #142654, var(--bg) 45%);
  color: var(--text);
}

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 18px 70px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.9rem;
}

.nav a.active { color: var(--cyan); border-color: rgba(0, 212, 255, 0.35); }

h1, h2, h3 { margin: 0 0 10px; }
h1 { font-size: 2rem; letter-spacing: -0.02em; }
h2 { margin-top: 26px; font-size: 1.25rem; }
p, li { color: var(--muted); line-height: 1.6; }

.hero {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.08), rgba(0, 245, 154, 0.05));
  padding: 20px;
  margin-bottom: 18px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  background: var(--card);
  margin-top: 12px;
}

code, pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

pre {
  margin: 8px 0 0;
  background: #030712;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  overflow: auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.badge {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  border: 1px solid rgba(0, 245, 154, 0.35);
  color: var(--green);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.82rem;
}

@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
  h1 { font-size: 1.5rem; }
}