/* tools402 — design tokens (locked to pitch §6) */
:root {
  --bg: #0a0a0b;
  --bg-2: #0e0e10;
  --surface: #111114;
  --surface-2: #16161a;
  --surface-3: #1a1a20;
  --border: #1e1e24;
  --border-strong: #2a2a33;
  --primary: #3b82f6;
  --primary-2: #60a5fa;
  --primary-3: #1e3a8a;
  --success: #22c55e;
  --warning: #eab308;
  --error: #ef4444;
  --violet: #a78bfa;
  --text: #f4f4f5;
  --text-2: #a1a1aa;
  --text-3: #71717a;
  --text-4: #52525b;
  --radius: 6px;
  --radius-lg: 10px;
  --shadow-1:
    0 30px 80px -40px rgba(59, 130, 246, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.02);
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Inter", system-ui, -apple-system, sans-serif;
  --serif: "Instrument Serif", Georgia, serif;
}
* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-feature-settings: "cv02", "cv03", "cv04", "cv11", "ss01";
  -webkit-font-smoothing: antialiased;
}
body {
  background: var(--bg);
  min-height: 100vh;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font-family: inherit;
}
::selection {
  background: rgba(59, 130, 246, 0.35);
  color: #fff;
}

/* Topbar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(140%) blur(12px);
  background: rgba(10, 10, 11, 0.78);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: linear-gradient(135deg, #3b82f6, #a78bfa);
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 6px 18px -6px rgba(59, 130, 246, 0.45);
}
.brand-name {
  font-size: 14.5px;
}
.brand-name .dim {
  color: var(--text-3);
  font-weight: 500;
}
.topbar nav {
  display: flex;
  gap: 2px;
  margin-left: 8px;
}
.topbar nav a {
  font-size: 13px;
  color: var(--text-2);
  padding: 7px 11px;
  border-radius: 6px;
  letter-spacing: -0.005em;
}
.topbar nav a:hover {
  color: var(--text);
  background: var(--surface);
}
.topbar nav a.cur {
  color: var(--text);
  background: var(--surface);
}
.top-spacer {
  flex: 1;
}
.meta {
  display: flex;
  align-items: center;
  gap: 10px;
}
.pill {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 10px;
  background: var(--surface);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
}
.dot.warn {
  background: var(--warning);
  box-shadow: 0 0 0 3px rgba(234, 179, 8, 0.15);
}
.dot.err {
  background: var(--error);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.005em;
  padding: 8px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s;
}
.btn:hover {
  border-color: var(--text-3);
  background: var(--surface-2);
}
.btn.primary {
  background: var(--text);
  color: #0a0a0b;
  border-color: var(--text);
}
.btn.primary:hover {
  background: #fff;
}
.btn.ghost {
  background: transparent;
}

/* Footer */
.footer {
  max-width: 1280px;
  margin: 0 auto;
  padding: 48px 28px 60px;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  color: var(--text-3);
  font-size: 13px;
}
@media (max-width: 760px) {
  .footer {
    grid-template-columns: 1fr 1fr;
  }
}
.footer h5 {
  color: var(--text);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 12px;
  font-weight: 500;
  font-family: var(--mono);
}
.footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer a:hover {
  color: var(--text);
}
.footer .legal {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-4);
  line-height: 1.6;
}

/* Generic chrome */
.eyebrow {
  font: 600 11px / 1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow .bar {
  width: 18px;
  height: 1px;
  background: var(--text-4);
}

/* Code highlighting — DNA C-05 canonical tokens (k/s/c) */
.tok-k {
  color: #a78bfa;
}
.tok-s {
  color: #86efac;
}
.tok-c {
  color: var(--text-4);
  font-style: italic;
}
/* Legacy code tokens (still used by index.html integration snippets) */
.kw {
  color: var(--primary-2);
}
.st {
  color: #fca5a5;
}
.nu {
  color: #86efac;
}
.fl {
  color: #fde047;
}
.cm {
  color: var(--text-4);
  font-style: italic;
}
.ok {
  color: var(--success);
}
.pp {
  color: var(--text-3);
}
.key {
  color: var(--primary-2);
}
.str {
  color: #fca5a5;
}