:root {
  --bg: #0b0c10;
  --panel: #12161d;
  --panel-2: #1a202a;
  --line: #263040;
  --text: #c5c6c7;
  --text-strong: #eef1f4;
  --muted: #8a94a3;
  --accent: #5b8cff;
  --accent-2: #8aa8ff;
  --ok: #4ade80;
  --warn: #f5b942;
  --danger: #ff5c7a;
  --radius: 12px;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --display: "Space Grotesk", "Inter", system-ui, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: radial-gradient(1200px 600px at 10% -10%, rgba(91, 140, 255, 0.08), transparent 60%), var(--bg);
  color: var(--text);
  font: 15px/1.55 var(--sans);
  min-height: 100vh;
}
a { color: var(--accent); }
a:hover { color: var(--text-strong); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.wrap { max-width: 1240px; margin: 0 auto; padding: 0 20px; }

header.site {
  border-bottom: 1px solid var(--line);
  background: rgba(11, 12, 16, 0.85);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 10;
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 56px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--display); font-weight: 600; color: var(--text-strong); text-decoration: none; }
.brand .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }
header.site nav { display: flex; gap: 16px; font-size: 14px; }
header.site nav a { color: var(--muted); text-decoration: none; }
header.site nav a:hover { color: var(--accent); }

.hero { padding: 40px 0 20px; }
.hero .eyebrow { font: 500 12px/1 var(--mono); color: var(--accent-2); letter-spacing: 0.12em; text-transform: uppercase; }
.hero h1 { font-family: var(--display); font-size: clamp(28px, 4vw, 44px); line-height: 1.1; margin: 12px 0; color: var(--text-strong); letter-spacing: -0.02em; }
.hero p { max-width: 760px; color: var(--muted); font-size: 16px; margin: 0; }

.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: minmax(300px, 380px) minmax(0, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 960px) {
  .grid.cols-2, .grid.cols-3 { grid-template-columns: minmax(0, 1fr); }
  .grid.cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; min-width: 0; }
.card h2, .card h3 { font-family: var(--display); color: var(--text-strong); margin: 0 0 12px; font-size: 16px; font-weight: 600; }
.card h2 small, .card h3 small { color: var(--muted); font-weight: 400; font-family: var(--sans); font-size: 13px; margin-left: 6px; }
.stack > * + * { margin-top: 16px; }

label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.field { margin-bottom: 12px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
input, select, textarea {
  width: 100%; background: var(--bg); color: var(--text-strong);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px;
  font: 14px var(--sans);
}
input:focus, select:focus, textarea:focus { border-color: var(--accent-2); outline: none; box-shadow: 0 0 0 3px rgba(91, 140, 255, 0.2); }
textarea { font-family: var(--mono); font-size: 12.5px; line-height: 1.5; resize: vertical; }
input[type="range"] { padding: 0; accent-color: var(--accent); }
.hint { font-size: 12px; color: var(--muted); margin-top: 4px; }

button, .btn {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  background: var(--accent); color: #fff; border: 0; border-radius: 8px;
  padding: 8px 14px; font: 600 14px var(--sans); text-decoration: none;
}
button.ghost, .btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
button.ghost:hover { border-color: var(--accent-2); color: var(--accent); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-row { display: flex; flex-wrap: wrap; gap: 8px; }

.tile { background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px; padding: 14px; }
.tile .k { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
.tile .v { font: 600 24px/1.2 var(--display); color: var(--text-strong); margin-top: 6px; font-variant-numeric: tabular-nums; }
.tile .s { font-size: 12px; color: var(--muted); margin-top: 2px; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.table-scroll { overflow-x: auto; }

.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font: 600 11px/1.6 var(--mono); letter-spacing: 0.03em; border: 1px solid currentColor; white-space: nowrap; }
.pill.ok { color: var(--ok); }
.pill.warn { color: var(--warn); }
.pill.danger { color: var(--danger); }
.pill.info { color: var(--accent); }
.pill.muted { color: var(--muted); }

pre.code { background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 12px; overflow: auto; font: 12.5px/1.55 var(--mono); color: var(--text-strong); max-height: 420px; margin: 0; }
code { font-family: var(--mono); font-size: 0.92em; color: var(--accent); }

.chart { width: 100%; height: auto; display: block; }
.legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: 12px; color: var(--muted); margin-top: 8px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: -1px; }

.error-box { color: var(--danger); font: 12.5px var(--mono); margin-top: 6px; min-height: 1em; }

footer.site { border-top: 1px solid var(--line); margin-top: 48px; padding: 24px 0 40px; color: var(--muted); font-size: 13px; }
footer.site .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); border: 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mb-10 { margin-bottom: 10px; }
.stack { min-width: 0; }
@media (max-width: 600px) { header.site nav { gap: 10px; font-size: 13px; } .hero { padding-top: 28px; } }
.site-preview { background: #ffffff; color: #1d2433; border-radius: var(--radius); padding: 28px; font: 16px/1.5 Inter, system-ui, sans-serif; --wcc-accent: #3b5bff; }
.site-preview + .site-preview { margin-top: 16px; }
.demo-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; }
.decl { font: 12.5px/1.6 var(--mono); }