:root {
  --bg: #050505;
  --bg-elev: #0b0b0b;
  --bg-card: #101010;
  --line: #1c1c1c;
  --text: #f3f3f3;
  --muted: #8a8a8a;
  --dim: #5c5c5c;
  --green: #00ff88;
  --blue: #00aaff;
  --amber: #ffaa00;
  --red: #ff5555;
  --purple: #aa55ff;
  --radius: 10px;
  --max: 1120px;
  --sidebar: 280px;
  --header-h: 64px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--green); }
img { max-width: 100%; }
code, .mono {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

.wrap { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  background: rgba(5,5,5,.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 800;
  letter-spacing: .04em;
  font-family: ui-monospace, Menlo, monospace;
}
.brand img { width: 28px; height: 28px; }
.nav {
  display: flex;
  gap: 18px;
  margin-left: 12px;
}
.nav a {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.nav a:hover, .nav a.active { color: var(--green); }
.header-cta { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: 8px;
  padding: 10px 16px;
  font-weight: 800;
  font-size: 12px;
  letter-spacing: .06em;
  text-transform: uppercase;
  cursor: pointer;
  font-family: ui-monospace, Menlo, monospace;
}
.btn-primary {
  background: linear-gradient(90deg, #00ff88, #00cc6a);
  color: #05140c;
}
.btn-primary:hover { filter: brightness(1.08); color: #05140c; }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }

.menu-toggle {
  display: none;
  margin-left: auto;
  background: none;
  border: 1px solid var(--line);
  color: var(--text);
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

/* Hero */
.hero {
  padding: 72px 0 48px;
  background:
    radial-gradient(900px 400px at 80% -10%, rgba(0,255,136,.12), transparent 60%),
    radial-gradient(700px 300px at 0% 40%, rgba(0,170,255,.08), transparent 55%);
  border-bottom: 1px solid var(--line);
}
.kicker {
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
  font-family: ui-monospace, Menlo, monospace;
}
.hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.08;
  margin: 12px 0 16px;
  letter-spacing: -0.03em;
}
.hero p.lead { color: #cfcfcf; font-size: 18px; max-width: 640px; }
article .lead { font-size: 18px; color: #cfcfcf; }
.search-box {
  margin-top: 28px;
  display: flex;
  gap: 8px;
  max-width: 640px;
}
.search-box input {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 16px;
  font-family: ui-monospace, Menlo, monospace;
}
.search-box input:focus { outline: 1px solid var(--green); }
.hero-stats {
  display: flex;
  gap: 28px;
  margin-top: 36px;
  flex-wrap: wrap;
}
.stat .n {
  font-size: 28px;
  font-weight: 800;
  font-family: ui-monospace, Menlo, monospace;
  color: var(--green);
}
.stat .l { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }

/* Layout with sidebar */
.page {
  display: grid;
  grid-template-columns: 1fr var(--sidebar);
  gap: 28px;
  padding: 36px 0 80px;
  align-items: start;
}
.page.solo { grid-template-columns: 1fr; max-width: 820px; }

article h1 { font-size: 34px; line-height: 1.15; margin: 8px 0 12px; }
article h2 { font-size: 22px; margin: 32px 0 10px; }
article h3 { font-size: 16px; margin: 22px 0 8px; color: #ddd; }
article p, article li { color: #d4d4d4; }
article ul { padding-left: 18px; }
.meta { color: var(--muted); font-size: 13px; display: flex; gap: 12px; flex-wrap: wrap; }
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
  font-family: ui-monospace, Menlo, monospace;
}
.badge-p { background: #ff555522; color: var(--red); }
.badge-c { background: #ffaa0022; color: var(--amber); }
.badge-b { background: #00aaff22; color: var(--blue); }
.badge-u { background: #aa55ff22; color: var(--purple); }
.badge-sev-high { background: #ff555522; color: var(--red); }
.badge-sev-medium { background: #ffaa0022; color: var(--amber); }
.badge-sev-low { background: #00ff8822; color: var(--green); }

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.feature-card h3 { margin: 8px 0 6px; }
.feature-card p { color: var(--muted); margin: 0; font-size: 14px; }
.icon-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--green); box-shadow: 0 0 10px var(--green);
  display: inline-block;
}

/* Code cards */
.code-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.code-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  color: inherit;
}
.code-card:hover { border-color: #00ff8855; color: inherit; }
.code-card .code {
  color: var(--green);
  font-size: 20px;
  font-weight: 800;
}
.code-card .title { color: #ddd; font-size: 13px; margin-top: 4px; }
.code-card .why { color: var(--muted); font-size: 12px; margin-top: 8px; }

/* Sidebar CTA */
.sidebar { position: sticky; top: 84px; display: flex; flex-direction: column; gap: 14px; }
.app-cta {
  background: linear-gradient(180deg, #101a14, #0b0b0b);
  border: 1px solid #00ff8833;
  border-radius: 12px;
  padding: 18px;
}
.app-cta h3 { margin: 0 0 8px; font-size: 16px; }
.app-cta p { color: var(--muted); font-size: 13px; margin: 0 0 14px; }
.app-cta .btn { width: 100%; }
.mini-list { list-style: none; padding: 0; margin: 0 0 14px; }
.mini-list li { color: #ccc; font-size: 13px; padding: 4px 0 4px 16px; position: relative; }
.mini-list li::before { content: ""; position: absolute; left: 0; top: 11px; width: 7px; height: 7px; border-radius: 50%; background: var(--green); }

.related a { display: block; padding: 8px 0; border-bottom: 1px solid var(--line); color: #ddd; font-size: 13px; }
.related a span { color: var(--green); font-family: ui-monospace, Menlo, monospace; margin-right: 6px; }

/* FAQ */
.faq details {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  margin: 8px 0;
}
.faq summary { cursor: pointer; font-weight: 700; }
.faq p { margin: 8px 0 0; color: var(--muted); }

/* Guides list */
.guide-row {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  color: inherit;
}
.guide-row:hover { color: inherit; }
.guide-row .tag {
  font-family: ui-monospace, Menlo, monospace;
  font-size: 11px;
  color: var(--green);
  letter-spacing: .08em;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 36px 0 24px;
  color: var(--muted);
  font-size: 13px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 20px; }
.site-footer h4 { color: var(--text); margin: 0 0 10px; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; }
.site-footer a { color: var(--muted); display: block; padding: 3px 0; }
.legal { margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--dim); font-size: 12px; }

/* Breadcrumb */
.crumbs { font-size: 12px; color: var(--muted); margin-bottom: 10px; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--green); }

/* Filter chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 20px; }
.chip {
  background: var(--bg-card);
  border: 1px solid var(--line);
  color: var(--muted);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
  font-family: ui-monospace, Menlo, monospace;
}
.chip.active, .chip:hover { border-color: var(--green); color: var(--green); }

/* Mobile bottom CTA */
.mobile-cta {
  display: none;
  position: fixed;
  left: 0; right: 0; bottom: 0;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: rgba(5,5,5,.94);
  border-top: 1px solid var(--line);
  z-index: 30;
}

.notice {
  background: #0f1408;
  border: 1px solid #00ff8822;
  color: #cde;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 13px;
}

@media (max-width: 960px) {
  .page { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .mobile-cta { display: flex; gap: 8px; }
  .mobile-cta .btn { flex: 1; }
  .grid-3, .code-grid, .footer-grid, .grid-2 { grid-template-columns: 1fr; }
  .nav { display: none; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: #0b0b0b;
    border-bottom: 1px solid var(--line);
    padding: 12px 16px 16px;
  }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .header-cta .btn-ghost { display: none; }
  body { padding-bottom: 72px; }
}