:root {
  --bg: #0b0c10;
  --bg-alt: #111217;
  --text: #e6e6e6;
  --muted: #a9acb3;
  --primary: #4f8cff;
  --border: #2a2d35;
  --card: #13141a;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: rgba(11, 12, 16, 0.8);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.logo { font-weight: 700; color: var(--text); text-decoration: none; }
.site-nav { display: none; gap: 16px; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover { color: var(--text); }
.theme-toggle { background: transparent; border: 1px solid var(--border); color: var(--text); padding: 6px 10px; border-radius: 8px; cursor: pointer; }

@media (min-width: 900px) {
  .site-nav { display: flex; }
}

.hero {
  display: grid;
  place-items: center;
  padding: 80px 20px 40px;
  background: radial-gradient(1200px 600px at 50% -10%, rgba(79, 140, 255, 0.25), rgba(11,12,16,0) 60%), var(--bg);
}
.hero-content { text-align: center; max-width: 960px; }
.hero h1 { font-size: 44px; margin: 0 0 12px; }
.subtitle { color: var(--muted); margin: 0 auto 24px; max-width: 800px; }
.hero-cta { display: flex; gap: 12px; justify-content: center; }
.btn { display: inline-block; color: var(--text); text-decoration: none; padding: 10px 16px; border: 1px solid var(--border); border-radius: 10px; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #07122b; font-weight: 600; }

.section { padding: 56px 20px; background: var(--bg); }
.section.alt { background: var(--bg-alt); }
.container { max-width: 1100px; margin: 0 auto; }
.note { color: var(--muted); }

.feature-list { display: grid; gap: 10px; padding-left: 18px; }
.feature-list li { margin: 0 0 2px; }

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; background: var(--card); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 12px 14px; border-bottom: 1px solid var(--border); text-align: left; }
th { color: var(--muted); font-weight: 600; }
tbody tr:last-child td { border-bottom: none; }

.code-grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 900px) { .code-grid { grid-template-columns: 1fr 1fr; } }
.code-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 12px; }
pre { margin: 0; overflow-x: auto; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; font-size: 13px; }

.link-list { display: grid; gap: 6px; padding-left: 18px; }

.site-footer { border-top: 1px solid var(--border); padding: 24px 20px; background: var(--bg-alt); color: var(--muted); }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--text); }

.friend-links {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.friend-links h4 {
  margin: 0 0 16px;
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
}

.link-categories {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

@media (min-width: 600px) {
  .link-categories {
    grid-template-columns: repeat(3, 1fr);
  }
}

.link-category h5 {
  margin: 0 0 12px;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
}

.link-category {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.link-category a {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s ease;
}

.link-category a:hover {
  color: var(--primary);
}

html { scroll-behavior: smooth; }