:root {
  --bg: #0a0a0a;
  --bg-card: #111;
  --bg-hover: #181818;
  --border: #1f1f1f;
  --border-bright: #2a2a2a;
  --text: #f0f0f0;
  --text-2: #c0c0c0;
  --text-dim: #999;
  --text-mute: #666;
  --baby: #80c0ff;
  --baby-dim: #5090d0;
  --green: #5fffaa;
  --green-dim: #2da06a;
  --rose: #ff7090;
  --amber: #ffb050;
  --f-head: 'Inter', -apple-system, sans-serif;
  --f-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--f-head);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--baby); text-decoration: none; }
a:hover { color: #a0d0ff; }

code, .mono {
  font-family: var(--f-mono);
  font-size: 0.92em;
}

/* ===== TOP NAV ===== */
.topnav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.95);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  letter-spacing: 0.5px;
}
.brand-mark { color: var(--green); }
.nav-langs {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 1.5px;
}
.nav-langs a {
  color: var(--text-mute);
  padding: 0 4px;
}
.nav-langs .lang-current {
  color: var(--text);
  font-weight: 700;
}
.lang-sep { color: var(--text-mute); padding: 0 4px; }

/* ===== HERO ===== */
.hero {
  padding: 96px 32px 80px;
  text-align: center;
}
.hero-inner {
  max-width: 900px;
  margin: 0 auto;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  color: var(--green);
  margin-bottom: 32px;
  text-transform: uppercase;
  line-height: 1.6;
}
.status-dot {
  width: 8px;
  height: 8px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero-h1 {
  font-size: 72px;
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1;
  margin-bottom: 24px;
  color: var(--text);
}
.hero-sub {
  font-size: 18px;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 40px;
}
.hero-flow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--text-2);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 14px 24px;
  border-radius: 4px;
  margin-bottom: 40px;
  flex-wrap: wrap;
  justify-content: center;
}
.hero-flow .arrow { color: var(--text-mute); }
.accent-green { color: var(--green); }

.hero-ctas {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.cta {
  display: inline-block;
  padding: 14px 28px;
  font-family: var(--f-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: 2px;
  text-decoration: none;
  transition: all 0.15s;
  text-align: center;
}
.cta-primary {
  background: var(--green);
  color: var(--bg);
  border: 1px solid var(--green);
}
.cta-primary:hover {
  background: transparent;
  color: var(--green);
}
.cta-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-bright);
}
.cta-secondary:hover {
  border-color: var(--baby);
  color: var(--baby);
}
.cta-fr {
  display: block;
  font-size: 10px;
  font-weight: 500;
  opacity: 0.7;
  margin-top: 2px;
}
.hero-sub-mute {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--text-mute);
  margin-top: 24px;
}

/* ===== SECTIONS ===== */
.section { padding: 80px 32px; }
.section-dark { background: #050505; }
.sec-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.sec-h2 {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.2;
  margin-bottom: 8px;
}
.sec-sub {
  font-family: var(--f-mono);
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 32px;
}
.sec-lead {
  font-size: 16px;
  color: var(--text-2);
  margin-bottom: 32px;
  max-width: 800px;
  line-height: 1.6;
}
.fr {
  color: var(--text-mute);
  font-size: 0.9em;
  display: block;
  margin-top: 4px;
}

/* ===== SIGNALS GRID ===== */
.signals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 24px;
}
.signal-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--text-mute);
  padding: 20px;
  text-align: left;
}
.signal-allow { border-left-color: var(--green); }
.signal-restrict { border-left-color: var(--rose); }
.signal-escalate { border-left-color: var(--amber); }
.signal-error { border-left-color: var(--rose); }
.signal-code {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
}
.signal-state {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--text-dim);
  margin-top: 6px;
}

/* ===== TOOLS GRID ===== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 32px;
}
.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--baby);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tool-write { border-left-color: var(--green); }
.tool-name {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
}
.tool-auth {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: 1.5px;
  padding: 3px 8px;
  border-radius: 2px;
  width: fit-content;
  background: rgba(128, 192, 255, 0.1);
  color: var(--baby);
  border: 1px solid var(--baby-dim);
}
.tool-auth-oauth {
  background: rgba(95, 255, 170, 0.1);
  color: var(--green);
  border: 1px solid var(--green-dim);
}
.tool-desc {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.5;
}

/* ===== CODE BLOCKS ===== */
.code-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 16px;
  max-width: 900px;
}
.code-label {
  background: #0c0c0c;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--text-dim);
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
}
.code-block pre {
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--text);
  padding: 16px;
  overflow-x: auto;
  line-height: 1.6;
}

/* ===== CATALOG STATS ===== */
.catalog-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-top: 32px;
}
.cat-stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 28px 20px;
  text-align: center;
}
.cat-stat-num {
  font-size: 56px;
  font-weight: 800;
  color: var(--green);
  line-height: 1;
  margin-bottom: 12px;
  letter-spacing: -1px;
}
.cat-stat-label {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 1.2px;
  color: var(--text-dim);
  text-transform: uppercase;
  line-height: 1.4;
}

/* ===== INFRA TABLE ===== */
.infra-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
}
.infra-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  align-items: center;
}
.infra-row:last-child { border-bottom: none; }
.infra-key {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.4;
}
.infra-val {
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--text);
  font-weight: 700;
  text-align: right;
}

/* ===== CLOSING ===== */
.closing { text-align: center; }
.closing-line {
  font-size: 18px;
  color: var(--text-2);
  margin-bottom: 12px;
  line-height: 1.6;
}
.closing-line em {
  color: var(--green);
  font-style: italic;
}
.closing-rule {
  border: none;
  height: 1px;
  background: var(--border);
  max-width: 200px;
  margin: 32px auto;
}
.closing-tagline {
  font-family: var(--f-mono);
  font-size: 14px;
  letter-spacing: 1.5px;
  color: var(--green);
  margin-top: 24px;
  font-weight: 700;
  text-transform: uppercase;
}

/* ===== FOOTER ===== */
.footer {
  background: #050505;
  border-top: 1px solid var(--border);
  padding: 64px 32px 32px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
  margin-bottom: 40px;
}
.footer-eyebrow {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--text-mute);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.footer-divisions, .footer-rails {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--text-2);
  margin-bottom: 8px;
  line-height: 1.6;
}
.footer-divisions a, .footer-rails a { color: var(--text); }
.footer-divisions a:hover, .footer-rails a:hover { color: var(--baby); }
.footer-divisions strong { color: var(--green); }
.footer-protocol {
  font-size: 12px;
  color: var(--text-2);
  margin-bottom: 6px;
  line-height: 1.6;
}
.footer-mute { color: var(--text-mute); font-size: 11px; }
.footer-sep { color: var(--text-mute); padding: 0 6px; }
.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--text-mute);
  text-align: center;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
  line-height: 1.6;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 720px) {
  .hero { padding: 64px 24px 56px; }
  .hero-h1 { font-size: 48px; letter-spacing: -1px; }
  .hero-sub { font-size: 16px; }
  .sec-h2 { font-size: 28px; }
  .section { padding: 56px 24px; }
  .topnav .nav-inner { padding: 12px 20px; }
  .infra-row { grid-template-columns: 1fr; gap: 4px; }
  .infra-val { text-align: left; }
  .cat-stat-num { font-size: 44px; }
  .hero-flow { font-size: 11px; padding: 12px 16px; }
}