:root {
  --bg: #f7f7f5;
  --panel: #ffffff;
  --text: #1c1f23;
  --muted: #667085;
  --line: #e4e4e0;
  --line-strong: #cfcfca;
  --accent: #0f766e;
  --accent-soft: #e0f2ef;
  --up: #0f766e;
  --peer: #4f46e5;
  --down: #b45309;
  --warn: #b42318;
  --warn-soft: #fdecea;
  --ok: #067647;
  --ok-soft: #e3f6ec;
  --bar: #d6e9e6;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", system-ui, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111315;
    --panel: #181b1e;
    --text: #e6e7e8;
    --muted: #9198a1;
    --line: #2a2e33;
    --line-strong: #3a3f45;
    --accent: #2dd4bf;
    --accent-soft: #123532;
    --up: #2dd4bf;
    --peer: #a5b4fc;
    --down: #fbbf24;
    --warn: #f97066;
    --warn-soft: #3a1d1b;
    --ok: #47cd89;
    --ok-soft: #133024;
    --bar: #1f4541;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1240px; margin: 0 auto; padding: 0 16px; }
.mono, code { font-family: var(--mono); font-size: 0.92em; }
.muted { color: var(--muted); }
.small { font-size: 12px; }

/* header */
.top { background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.top-inner { display: flex; align-items: center; gap: 20px; height: 56px; }
.brand { display: flex; align-items: center; gap: 8px; color: var(--text); font-weight: 650; font-size: 17px; letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.search { flex: 1; max-width: 520px; }
.search input, .filter {
  width: 100%; height: 36px; padding: 0 12px;
  border: 1px solid var(--line-strong); border-radius: 8px;
  background: var(--bg); color: var(--text); font: inherit;
}
.search input:focus, .filter:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }

main.wrap { padding-top: 28px; padding-bottom: 40px; min-height: 60vh; }
.foot { color: var(--muted); font-size: 12px; padding-bottom: 32px; }
.foot a { color: var(--muted); text-decoration: underline; }

/* home */
.hero { max-width: 640px; margin: 72px auto 0; text-align: center; }
.hero h1 { font-size: 34px; letter-spacing: -0.02em; margin: 0 0 8px; }
.hero p { color: var(--muted); margin: 0 0 24px; }
.hero .search { max-width: none; }
.hero .search input { height: 48px; font-size: 16px; padding: 0 16px; border-radius: 10px; background: var(--panel); }
.examples { margin-top: 16px; display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.chip { display: inline-block; padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px; background: var(--panel); font-size: 13px; color: var(--text); }
.chip:hover { border-color: var(--accent); text-decoration: none; }

/* entity header */
.ent { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 14px; margin-bottom: 4px; }
.ent h1 { margin: 0; font-size: 28px; letter-spacing: -0.02em; font-family: var(--mono); font-weight: 650; }
.ent .name { font-size: 20px; font-weight: 500; }
.sub { color: var(--muted); margin: 0 0 16px; display: flex; flex-wrap: wrap; gap: 4px 14px; }
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 1px 8px; border-radius: 6px; font-size: 12px; font-weight: 550; background: var(--accent-soft); color: var(--accent); white-space: nowrap; }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.plain { background: transparent; border: 1px solid var(--line-strong); color: var(--muted); }

.stats { display: flex; flex-wrap: wrap; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; margin: 18px 0 24px; }
.stat { background: var(--panel); padding: 12px 14px; flex: 1 1 130px; }
.stat b { display: block; font-size: 20px; font-weight: 600; font-variant-numeric: tabular-nums; }
.stat span { color: var(--muted); font-size: 12px; }

/* tabs */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--line); margin-bottom: 18px; overflow-x: auto; overflow-y: hidden; scrollbar-width: none; }
.tabs button {
  background: none; border: 0; border-bottom: 2px solid transparent; margin-bottom: -1px;
  padding: 8px 14px; font: inherit; color: var(--muted); cursor: pointer; white-space: nowrap;
}
.tabs button:hover { color: var(--text); }
.tabs button[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }
.tabs .n { font-variant-numeric: tabular-nums; color: var(--muted); font-weight: 400; margin-left: 4px; }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; margin-bottom: 20px; }
.panel > h2, .panel > .ph { margin: 0; padding: 12px 16px; font-size: 14px; font-weight: 600; border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.panel > .body { padding: 14px 16px; }
.ph .grow { flex: 1; }
.ph .filter { width: 220px; height: 30px; }
.note { color: var(--muted); font-size: 12px; padding: 10px 16px; border-top: 1px solid var(--line); }

/* tables */
.tw { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 7px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; font-weight: 600; color: var(--muted); background: var(--panel); position: sticky; top: 0; cursor: pointer; user-select: none; white-space: nowrap; }
th[data-sort]::after { content: ""; }
th.asc::after { content: " ▲"; font-size: 9px; }
th.desc::after { content: " ▼"; font-size: 9px; }
tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: color-mix(in srgb, var(--accent-soft) 45%, transparent); }
td.num, th.num { text-align: right; }
td.asn { white-space: nowrap; font-family: var(--mono); font-size: 13px; }
td.wrapany { word-break: break-all; }
.dim td { opacity: 0.62; }

.vis { display: flex; align-items: center; gap: 8px; min-width: 150px; }
.vis .track { flex: 1; height: 6px; background: var(--line); border-radius: 3px; overflow: hidden; min-width: 60px; }
.vis .fill { height: 100%; background: var(--accent); }
.vis span { font-size: 12px; color: var(--muted); width: 64px; text-align: right; }

.rel { font-weight: 600; font-size: 12px; }
.rel.upstream { color: var(--up); }
.rel.peer { color: var(--peer); }
.rel.downstream { color: var(--down); }

.kv { display: grid; grid-template-columns: 180px 1fr; gap: 6px 16px; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-word; }
.pre { white-space: pre-wrap; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 860px) { .grid2 { grid-template-columns: 1fr; } .kv { grid-template-columns: 1fr; } .kv dt { margin-top: 6px; } }

.loading { color: var(--muted); padding: 24px 16px; display: flex; align-items: center; gap: 10px; }
.loading::before { content: ""; width: 14px; height: 14px; border: 2px solid var(--line-strong); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.error { color: var(--warn); background: var(--warn-soft); padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 13px; }
.empty { color: var(--muted); padding: 18px 16px; }

/* graph */
.graph { overflow-x: auto; padding: 8px 0; }
.graph svg { display: block; margin: 0 auto; }
.graph .edge { fill: none; stroke: var(--line-strong); stroke-width: 1.4; }
.graph .edge.ris { stroke: var(--accent); stroke-opacity: 0.55; stroke-width: 1.8; }
.graph .node rect { fill: var(--panel); stroke: var(--line-strong); stroke-width: 1; rx: 7; }
.graph .node.root rect { stroke: var(--accent); stroke-width: 2; fill: var(--accent-soft); }
.graph .node.t1 rect { fill: var(--bg); stroke: var(--text); stroke-opacity: 0.4; }
.graph .node { cursor: pointer; }
.graph .node:hover rect { stroke: var(--accent); }
.graph .node text { fill: var(--text); font-size: 11px; font-family: var(--sans); }
.graph .node text.a { font-family: var(--mono); font-weight: 600; font-size: 11.5px; }
.graph .node text.n { fill: var(--muted); }
.legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: 12px; color: var(--muted); padding: 0 16px 12px; }
.legend i { display: inline-block; width: 18px; height: 0; border-top: 2px solid; vertical-align: middle; margin-right: 6px; }

.path a { margin-right: 4px; }
.seg { display: flex; gap: 6px; flex-wrap: wrap; }
.seg button { border: 1px solid var(--line-strong); background: var(--panel); color: var(--muted); border-radius: 999px; padding: 3px 12px; font: inherit; font-size: 13px; cursor: pointer; }
.seg button[aria-pressed="true"] { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); font-weight: 600; }

details.more summary { cursor: pointer; padding: 10px 16px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--line); }
details.more[open] summary { border-bottom: 1px solid var(--line); }

@media (max-width: 640px) {
  .top-inner { gap: 12px; }
  .brand span { display: none; }
  .ent h1 { font-size: 22px; }
  .ent .name { font-size: 16px; }
  .ph .filter { width: 100%; }
  .hero { margin-top: 32px; }
}
.nowrap { white-space: nowrap; }

/* AS header with website screenshot */
.ashead { display: flex; gap: 24px; align-items: flex-start; justify-content: space-between; }
.ashead-main { min-width: 0; flex: 1; }
.shot { flex: none; width: 240px; aspect-ratio: 16 / 10; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--panel); margin-top: 4px; }
.shot img { width: 100%; height: 100%; object-fit: cover; object-position: top; display: block; }
.shot:hover { border-color: var(--accent); }
.shot[hidden] { display: none; }
@media (max-width: 640px) { .ashead { flex-direction: column-reverse; gap: 12px; } .shot { width: 100%; max-width: 360px; } }
.seg button:disabled { opacity: 0.4; cursor: default; }