:root {
  --bg: #f7f8f7;
  --surface: #ffffff;
  --text: #17201e;
  --muted: #5d6b67;
  --line: #dfe5e3;
  --accent: #0f766e;
  --accent-ink: #ffffff;
  --accent-soft: #e3f3f1;
  --ok: #1f7a3d;
  --bad: #b42318;
  --mid: #b7791f;
  --code-bg: #f0f3f2;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 24, 22, 0.06), 0 4px 16px rgba(16, 24, 22, 0.04);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1413;
    --surface: #161d1c;
    --text: #e7eeec;
    --muted: #97a6a2;
    --line: #26302e;
    --accent: #2dd4bf;
    --accent-ink: #062a26;
    --accent-soft: #123532;
    --ok: #4ade80;
    --bad: #f87171;
    --mid: #fbbf24;
    --code-bg: #111816;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

a { color: var(--accent); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace; font-size: 0.9em; }
:not(pre) > code { background: var(--code-bg); border: 1px solid var(--line); border-radius: 6px; padding: 0.05em 0.35em; }

.wrap { max-width: 880px; margin: 0 auto; padding: 0 16px; }

.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Header */
.top { border-bottom: 1px solid var(--line); background: var(--surface); }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.05rem; color: var(--text); text-decoration: none; letter-spacing: -0.01em; }
.logo { width: 26px; height: 26px; border-radius: 7px; background: var(--accent); position: relative; flex: none; }
.logo::before, .logo::after { content: ""; position: absolute; top: 9px; width: 8px; height: 8px; border-radius: 50%; }
.logo::before { left: 5px; background: var(--accent-ink); }
.logo::after { right: 5px; border: 2px solid var(--accent-ink); width: 8px; height: 8px; box-sizing: border-box; }
nav { display: flex; gap: 18px; flex-wrap: wrap; }
nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
nav a:hover { color: var(--text); }

/* Hero + search */
.hero { padding: 56px 0 28px; }
h1 { font-size: clamp(1.9rem, 4.5vw, 2.7rem); line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 14px; }
h2 { font-size: 1.25rem; letter-spacing: -0.01em; margin: 0 0 14px; }
section { margin: 0 0 44px; }
.lead { font-size: 1.12rem; color: var(--muted); max-width: 680px; margin: 0 0 26px; }
.muted { color: var(--muted); }
.small { font-size: 0.88rem; }

.search { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow); }
.search input[type="search"] {
  width: 100%; font: inherit; font-size: 1.08rem; padding: 12px 14px; border: 1px solid var(--line); border-radius: 9px;
  background: var(--bg); color: var(--text);
}
.search input[type="search"]:focus, select:focus, button:focus-visible { outline: 3px solid var(--accent-soft); outline-offset: 1px; border-color: var(--accent); }
.search-row { display: flex; gap: 12px; align-items: center; margin-top: 12px; flex-wrap: wrap; }
select { font: inherit; padding: 9px 10px; border: 1px solid var(--line); border-radius: 9px; background: var(--bg); color: var(--text); }
.check { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); }
button {
  font: inherit; font-weight: 600; padding: 10px 20px; border: 0; border-radius: 9px; background: var(--accent); color: var(--accent-ink);
  cursor: pointer; margin-left: auto;
}
button:hover { filter: brightness(1.05); }

/* Results */
.results h2 { margin-top: 4px; }
.cards { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); }
.card-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 12px; }
.card-title { font-weight: 650; font-size: 1.08rem; text-decoration: none; }
.card-title:hover { text-decoration: underline; }
.id { color: var(--muted); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.85rem; word-break: break-all; margin: 0; }
.summary { margin: 8px 0 10px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.chip { font-size: 0.8rem; padding: 2px 9px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); background: var(--bg); }
.chip.auth-none { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, var(--line)); }
.chip.chip-kind { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); font-weight: 600; }
.evidence { margin: 6px 0 0; font-size: 0.92rem; color: var(--muted); }
.ok { color: var(--ok); font-weight: 600; }
.bad { color: var(--bad); }
.empty { background: var(--surface); border: 1px dashed var(--line); border-radius: var(--radius); padding: 18px; color: var(--muted); }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.stats div { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.stats b { display: block; font-size: 1.6rem; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.stats span { color: var(--muted); font-size: 0.9rem; }

/* Steps */
.steps { padding-left: 1.3em; margin: 0 0 12px; }
.steps li { margin: 0 0 8px; padding-left: 4px; }
.plain { padding-left: 1.2em; margin: 0; }
.plain li { margin: 0 0 8px; }

/* Code blocks */
.code { margin: 0 0 14px; }
.code-label { font-size: 0.85rem; color: var(--muted); margin: 0 0 6px; }
pre {
  position: relative; margin: 0; padding: 14px 16px; background: var(--code-bg); border: 1px solid var(--line); border-radius: 10px;
  overflow-x: auto; line-height: 1.5;
}
.copy {
  position: absolute; top: 8px; right: 8px; margin: 0; padding: 4px 10px; font-size: 0.78rem; font-weight: 600;
  background: var(--surface); color: var(--muted); border: 1px solid var(--line); border-radius: 7px;
}
.copy:hover { color: var(--text); filter: none; }

/* Table */
.top-table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.top-table th, .top-table td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); }
.top-table th { font-size: 0.85rem; color: var(--muted); font-weight: 600; }
.top-table td:not(:first-child), .top-table th:not(:first-child) { text-align: right; font-variant-numeric: tabular-nums; }
.top-table tr:last-child td { border-bottom: 0; }

/* Server page */
.crumbs { padding-top: 28px; font-size: 0.92rem; color: var(--muted); }
.server-title { margin-top: 10px; word-break: break-word; }
.notice { background: var(--accent-soft); border-radius: 10px; padding: 10px 14px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; margin: 22px 0 36px; }
.does { margin: 0 0 8px; font-size: 0.94rem; }
.chip.grade { font-weight: 700; }
.grade-A { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 45%, var(--line)); }
.grade-B { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.grade-C { color: var(--mid); border-color: color-mix(in srgb, var(--mid) 45%, var(--line)); }
.grade-D, .grade-F { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 45%, var(--line)); }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; margin: 0; }
.panel h2 { font-size: 1rem; margin-bottom: 10px; }
.panel p { margin: 6px 0; }
.bar { display: flex; height: 10px; border-radius: 999px; overflow: hidden; background: var(--line); margin: 4px 0 10px; }
.b-ok { background: var(--ok); }
.b-mid { background: var(--mid); }
.b-bad { background: var(--bad); }
details summary { cursor: pointer; color: var(--muted); }
.tools { padding-left: 1.2em; }
.tools li { margin: 6px 0; }
.tools span { color: var(--muted); }
.reasons { list-style: none; padding: 0; margin: 0; }
.reasons li { padding: 10px 0; border-bottom: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: baseline; }
.reasons time { color: var(--muted); font-size: 0.85rem; margin-left: auto; }
.o { font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em; padding: 1px 7px; border-radius: 6px; background: var(--bg); border: 1px solid var(--line); }
.o-worked { color: var(--ok); }
.o-failed { color: var(--bad); }
.o-partly { color: var(--mid); }
.links { margin-bottom: 40px; }

/* Footer */
.foot { border-top: 1px solid var(--line); padding-top: 18px; padding-bottom: 40px; color: var(--muted); font-size: 0.88rem; }

@media (max-width: 640px) {
  .hero { padding-top: 36px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .grid { grid-template-columns: 1fr; }
  button[type="submit"] { width: 100%; margin-left: 0; }
  nav { gap: 14px; }
}

/* Live */
.browse-link { margin: -28px 0 44px; }
.hero-tight { padding-bottom: 8px; }
.topics { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.topic {
  margin: 0; display: inline-flex; align-items: center; gap: 8px; padding: 8px 12px; font-weight: 600; font-size: 0.92rem;
  background: var(--surface); color: var(--text); border: 1px solid var(--line); border-radius: 999px;
}
.topic:hover { border-color: var(--accent); filter: none; }
.topic-n { font-size: 0.78rem; font-weight: 700; color: var(--ok); font-variant-numeric: tabular-nums; }
#live-results:empty { display: none; }
#live-results { display: grid; gap: 12px; }
#live-results h2 { margin: 0; }
.live-card .live-body { margin-top: 8px; }
.live-list { padding-left: 1.3em; margin: 6px 0; display: grid; gap: 8px; }
.live-item p { margin: 2px 0 0; }
.live-item-head { display: flex; flex-wrap: wrap; gap: 4px 10px; align-items: baseline; }
.live-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.live-table th, .live-table td { text-align: left; vertical-align: top; padding: 6px 8px; border-bottom: 1px solid var(--line); word-break: break-word; }
.live-table th { color: var(--muted); font-weight: 600; width: 32%; }
.live-text p { white-space: pre-line; margin: 6px 0; word-break: break-word; }
.live-feedback { display: flex; align-items: center; gap: 8px; margin-top: 10px; }
.fb { margin: 0; padding: 5px 12px; font-size: 0.85rem; background: var(--bg); color: var(--text); border: 1px solid var(--line); }
.fb:hover { border-color: var(--accent); filter: none; }

/* Stats */
.scroll-x { overflow-x: auto; }
.log { list-style: none; padding: 0; }
.log li { padding: 4px 0; border-bottom: 1px solid var(--line); word-break: break-word; }
.log time { color: var(--muted); font-variant-numeric: tabular-nums; margin-right: 6px; }
.panel h3 { margin: 12px 0 6px; color: var(--muted); }