:root {
  --bg: #f7f7f5;
  --panel: #ffffff;
  --ink: #17181a;
  --muted: #62666d;
  --line: #e3e3df;
  --accent: #0f766e;
  --ok: #047857;
  --ok-bg: #e7f6ef;
  --warn: #a15c00;
  --warn-bg: #fdf3e2;
  --bad: #b42318;
  --bad-bg: #fdecea;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1113;
    --panel: #171a1d;
    --ink: #e7e9eb;
    --muted: #979ca3;
    --line: #2a2e33;
    --accent: #2dd4bf;
    --ok: #34d399;
    --ok-bg: #0f2a20;
    --warn: #fbbf24;
    --warn-bg: #2d2410;
    --bad: #f87171;
    --bad-bg: #2f1414;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 var(--sans); }
a { color: var(--accent); }
code, .mono { font-family: var(--mono); font-size: 0.9em; }
.wrap { max-width: 980px; margin: 0 auto; padding-inline: 16px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
[hidden] { display: none !important; }

header.wrap { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding-block: 28px 12px; }
.brand { font: 600 22px/1 var(--mono); color: var(--ink); text-decoration: none; display: inline-flex; align-items: center; gap: 10px; }
.brand .dim { color: var(--muted); font-weight: 400; }
.lock { width: 14px; height: 12px; background: var(--ok); border-radius: 2px; position: relative; top: 2px; }
.lock::before { content: ""; position: absolute; left: 2px; top: -8px; width: 6px; height: 7px; border: 2px solid var(--ok); border-bottom: 0; border-radius: 6px 6px 0 0; }
.tag { margin: 0; color: var(--muted); }

.search { display: flex; gap: 8px; margin-top: 12px; }
.search input { flex: 1; min-width: 0; font: 16px var(--mono); padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); color: var(--ink); }
.search input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.search button { font: 600 15px var(--sans); padding: 0 22px; border: 0; border-radius: 8px; background: var(--ink); color: var(--bg); cursor: pointer; }
.search button:disabled { opacity: 0.5; cursor: progress; }
.hint { color: var(--muted); font-size: 13px; margin: 8px 2px 24px; }

.status { padding: 14px 16px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel); margin-bottom: 16px; }
.status.err { border-color: var(--bad); background: var(--bad-bg); color: var(--bad); }
.status.loading::before { content: ""; display: inline-block; width: 10px; height: 10px; margin-right: 10px; border-radius: 50%; border: 2px solid var(--muted); border-top-color: transparent; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 18px 20px; margin-bottom: 16px; }
.card h2 { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 0 0 14px; }

.summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.summary .big { font-size: 22px; font-weight: 600; }
.summary .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }

.badge { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; white-space: nowrap; }
.badge.ok { color: var(--ok); background: var(--ok-bg); }
.badge.warn { color: var(--warn); background: var(--warn-bg); }
.badge.bad { color: var(--bad); background: var(--bad-bg); }
.badge.neutral { color: var(--muted); background: var(--bg); border: 1px solid var(--line); }

.warnings { list-style: none; padding: 0; margin: 0; }
.warnings li { padding: 8px 12px; border-left: 3px solid var(--warn); background: var(--warn-bg); margin-bottom: 6px; border-radius: 0 6px 6px 0; }

.protos { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 10px; }
.proto { border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; }
.proto .name { font-weight: 600; display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.proto .detail { font: 12px var(--mono); color: var(--muted); margin-top: 4px; word-break: break-word; }

dl.kv { display: grid; grid-template-columns: minmax(130px, max-content) 1fr; gap: 6px 18px; margin: 0; }
dl.kv dt { color: var(--muted); }
dl.kv dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }

.chain { counter-reset: link; }
.cert { border: 1px solid var(--line); border-radius: 8px; margin-bottom: 10px; }
.cert > summary { list-style: none; cursor: pointer; padding: 12px 14px; display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.cert > summary::-webkit-details-marker { display: none; }
.cert > summary::before { content: "▸"; color: var(--muted); transition: transform 0.15s; }
.cert[open] > summary::before { transform: rotate(90deg); }
.cert .cn { font-weight: 600; flex: 1; min-width: 180px; overflow-wrap: anywhere; }
.cert .role { font-size: 12px; color: var(--muted); }
.cert .body { padding: 4px 16px 16px; border-top: 1px solid var(--line); }
.sans { display: flex; flex-wrap: wrap; gap: 6px; }
.sans span { font: 12px var(--mono); padding: 2px 8px; border-radius: 4px; background: var(--bg); border: 1px solid var(--line); }
.sans span.match { border-color: var(--ok); color: var(--ok); }
pre.pem { font: 11px/1.4 var(--mono); background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 10px; overflow-x: auto; max-height: 220px; }
.copy { font: 12px var(--sans); border: 1px solid var(--line); background: var(--panel); color: var(--ink); border-radius: 6px; padding: 3px 10px; cursor: pointer; }

footer.wrap { color: var(--muted); font-size: 12px; padding-block: 24px 40px; }

@media (max-width: 560px) {
  .search { flex-direction: column; }
  .search button { padding: 12px; }
  dl.kv { grid-template-columns: 1fr; gap: 0; }
  dl.kv dd { margin-bottom: 8px; }
}
.card h2.sub { margin-top: 12px; }