:root {
  --bg: #0b0d0c;
  --bg-2: #121614;
  --bg-3: #1a1f1c;
  --ink: #e8efe6;
  --muted: #8b9788;
  --line: #2a322c;
  --gold: #d4b56a;
  --gold-2: #f0d9a0;
  --ok: #7dcf9a;
  --warn: #e0b25a;
  --bad: #e07a6a;
  --halt: #c44c3a;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

[hidden] { display: none !important; }
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg); color: var(--ink); font-family: var(--sans); }
body { min-height: 100vh; }
a { color: var(--gold-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0; border-bottom: 1px solid var(--line);
  position: sticky; top: 0; background: rgba(11,13,12,.88);
  backdrop-filter: blur(10px); z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: .04em; }
.seal {
  width: 28px; height: 28px; border: 1px solid var(--gold);
  border-radius: 50%; display: grid; place-items: center;
  color: var(--gold); font-size: 12px; font-family: var(--mono);
}
.nav-links { display: flex; gap: 22px; font-size: 14px; color: var(--muted); }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--ink); text-decoration: none; }

.hero { padding: 72px 0 48px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; }
.kicker {
  font-family: var(--mono); font-size: 12px; color: var(--gold);
  letter-spacing: .16em; text-transform: uppercase; margin-bottom: 16px;
}
h1 { font-size: 52px; line-height: 1.05; font-weight: 500; letter-spacing: -.02em; }
.lede { margin-top: 18px; color: var(--muted); font-size: 18px; max-width: 36em; line-height: 1.55; }
.actions { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  border: 1px solid var(--gold); background: var(--gold); color: #1a1408;
  padding: 10px 16px; font-family: var(--sans); font-size: 14px; cursor: pointer;
}
.btn.ghost { background: transparent; color: var(--gold-2); }
.btn:hover { filter: brightness(1.08); }

.cert-card {
  border: 1px solid var(--line); background:
    radial-gradient(1200px 200px at 80% -20%, rgba(212,181,106,.08), transparent),
    var(--bg-2);
  padding: 22px; min-height: 280px;
}
.cert-card .row { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 11px; color: var(--muted); }
.cert-card h3 { margin: 28px 0 8px; font-size: 22px; font-weight: 500; }
.cert-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 24px; font-size: 12px; }
.cert-meta span { display: block; color: var(--muted); font-family: var(--mono); font-size: 10px; letter-spacing: .08em; }
.stamp {
  margin-top: 22px; display: inline-block; border: 1px dashed var(--ok);
  color: var(--ok); padding: 6px 10px; font-family: var(--mono); font-size: 11px;
  transform: rotate(-6deg);
}

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.stat { background: var(--bg-2); padding: 18px 16px; }
.stat b { display: block; font-size: 22px; font-weight: 500; }
.stat em { font-style: normal; color: var(--muted); font-size: 12px; }

section { padding: 64px 0; border-top: 1px solid var(--line); }
h2 { font-size: 28px; font-weight: 500; margin-bottom: 10px; }
.sub { color: var(--muted); margin-bottom: 28px; max-width: 46em; line-height: 1.5; }

.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { border: 1px solid var(--line); background: var(--bg-2); padding: 20px; }
.card h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 14px; line-height: 1.5; }
.card code { font-family: var(--mono); font-size: 12px; color: var(--gold-2); }

.play { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
label { display: block; font-size: 12px; color: var(--muted); margin: 12px 0 6px; font-family: var(--mono); }
input, textarea, select {
  width: 100%; background: var(--bg); border: 1px solid var(--line); color: var(--ink);
  padding: 10px; font-family: var(--mono); font-size: 12px;
}
textarea { min-height: 120px; resize: vertical; }
.out {
  background: var(--bg-3); border: 1px solid var(--line); padding: 16px;
  font-family: var(--mono); font-size: 12px; white-space: pre-wrap; overflow: auto;
  max-height: 640px; line-height: 1.45;
}
.badge { display: inline-block; padding: 2px 8px; border: 1px solid currentColor; font-family: var(--mono); font-size: 11px; }
.ATTEST { color: var(--ok); }
.CAUTION { color: var(--warn); }
.HALT { color: var(--bad); }
.tabs { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.tab {
  border: 1px solid var(--line); background: transparent; color: var(--muted);
  padding: 6px 10px; cursor: pointer; font-size: 12px; font-family: var(--mono);
}
.tab.on { border-color: var(--gold); color: var(--gold-2); }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }
.sev-critical { color: var(--halt); }
.sev-high { color: var(--bad); }
.sev-medium { color: var(--warn); }
.sev-low, .sev-info { color: var(--muted); }

footer { padding: 36px 0 56px; color: var(--muted); font-size: 13px; }

.grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.steps { list-style: decimal; padding-left: 22px; max-width: 52em; }
.steps li { color: var(--muted); line-height: 1.6; margin-bottom: 14px; }
.steps li b { color: var(--ink); }
code, .mono { font-family: var(--mono); font-size: .9em; }
details { border: 1px solid var(--line); background: var(--bg-2); padding: 14px 18px; margin-bottom: 10px; max-width: 52em; }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin-top: 10px; line-height: 1.5; }
.cta { text-align: center; }
.cta .sub { margin: 0 auto 22px; }
.cta .btn { font-size: 16px; padding: 12px 22px; display: inline-block; }
a.btn:hover { text-decoration: none; }

@media (max-width: 860px) {
  .hero, .play, .grid3, .grid2, .stats { grid-template-columns: 1fr; }
  h1 { font-size: 34px; }
  nav { flex-direction: column; align-items: flex-start; gap: 10px; }
  .nav-links { flex-wrap: wrap; gap: 12px; }
  .hero { padding: 40px 0 32px; gap: 28px; }
  section { padding: 44px 0; }
  table { font-size: 12px; }
}
.card p.src { margin-top: 10px; font-size: 12px; }