:root {
  --bg: #f2f4f6;
  --panel: #ffffff;
  --panel-2: #f7f8fa;
  --ink: #1a2733;
  --muted: #5a6b79;
  --border: #d9dfe5;
  --border-strong: #b8c2cb;
  --top: #1f2e3b;
  --top-ink: #eef2f5;
  --top-muted: #a9b8c4;
  --brand: #e48559;
  --brand-hover: #ec9770;
  --brand-ink: #a4481d;
  --brand-soft: #fcefe8;
  --ok: #17693f;
  --ok-soft: #e3f4ea;
  --warn: #8a5a00;
  --warn-soft: #fbf1d9;
  --bad: #a51d2d;
  --bad-soft: #fbe9eb;
  --edge: #b3bfc9;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141c23;
    --panel: #1c2730;
    --panel-2: #222e38;
    --ink: #e6ecf0;
    --muted: #9dadb9;
    --border: #2f3d48;
    --border-strong: #465764;
    --top: #1c2730;
    --brand-ink: #f2a581;
    --brand-soft: #38261d;
    --ok: #75d6a6;
    --ok-soft: #1b3529;
    --warn: #e5c06b;
    --warn-soft: #3a3019;
    --bad: #ff9aa3;
    --bad-soft: #3d2126;
    --edge: #55687a;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; background: var(--bg); color: var(--ink); font: 14.5px/1.45 var(--sans); }
a { color: var(--brand-ink); }
h1, h2, h3, p { margin: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
[hidden] { display: none !important; }

.top { display: flex; align-items: center; gap: 10px; padding: 11px 20px; background: var(--top); color: var(--top-ink); border-bottom: 1px solid var(--border); }
.mark { width: 14px; height: 14px; border: 3px solid var(--brand); border-radius: 50%; }
.top-title { font-size: 15.5px; font-weight: 650; }
.top-owner { color: var(--top-muted); margin-left: 6px; }
.top-owner a { color: inherit; }
.top-contact { margin-left: auto; color: var(--top-muted); }

.shell { flex: 1; display: grid; grid-template-columns: 208px minmax(0, 1fr); width: 100%; }
.nav { padding: 16px 10px; background: var(--panel); border-right: 1px solid var(--border); }
.nav-group { margin: 16px 10px 5px; color: var(--muted); font-size: 12.5px; font-weight: 600; }
.nav-group:first-child { margin-top: 0; }
.nav-item {
  display: block; width: 100%; padding: 7px 10px; font: inherit; text-align: left; color: var(--ink);
  background: none; border: 0; border-radius: 5px; cursor: pointer;
}
.nav-item:hover { background: var(--panel-2); }
.nav-item[aria-current="true"] { background: var(--brand-soft); color: var(--brand-ink); font-weight: 600; }

.main { padding: 20px; min-width: 0; }
.query { padding: 16px 18px; background: var(--panel); border: 1px solid var(--border); border-radius: 7px; }
.query-title { font-size: 17px; font-weight: 650; }
.query-desc { margin-top: 1px; color: var(--muted); max-width: 80ch; }
.query-row { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px; margin-top: 14px; }
.label { display: block; padding: 0; margin-bottom: 4px; color: var(--muted); font-size: 12.5px; font-weight: 550; }
.input-wrap { flex: 1 1 260px; min-width: 0; }
.input-small { flex: 0 1 190px; }
input[type="text"], input[type="search"] {
  width: 100%; height: 36px; padding: 0 10px; font: 14.5px var(--mono); color: var(--ink);
  background: var(--panel); border: 1px solid var(--border-strong); border-radius: 5px;
}
input::placeholder { color: var(--muted); opacity: .75; }
input[type="text"]:focus, input[type="search"]:focus { border-color: var(--brand); outline: 2px solid var(--brand-soft); outline-offset: 0; }
.seg-wrap { margin: 0; padding: 0; border: 0; min-width: 0; }
.seg { display: inline-flex; height: 36px; border: 1px solid var(--border-strong); border-radius: 5px; overflow: hidden; }
.seg label { position: relative; display: flex; align-items: center; padding: 0 12px; cursor: pointer; white-space: nowrap; border-left: 1px solid var(--border); }
.seg label:first-child { border-left: 0; }
.seg input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.seg label:has(input:checked) { background: var(--top); color: var(--top-ink); font-weight: 600; }
.seg label:has(input:focus-visible) { outline: 2px solid var(--brand); outline-offset: -2px; }
.seg label:has(input:disabled) { opacity: .45; cursor: not-allowed; }
.run {
  height: 36px; padding: 0 22px; font: 600 14.5px var(--sans); color: #24120a; background: var(--brand);
  border: 0; border-radius: 5px; cursor: pointer;
}
.run:hover { background: var(--brand-hover); }
.run[disabled] { opacity: .6; cursor: progress; }
.field-error { margin-top: 8px; color: var(--bad); font-weight: 550; }
.field-error:empty { display: none; }
.examples { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 10px; color: var(--muted); font-size: 13px; }
.examples:empty { display: none; }
.chip {
  padding: 2px 8px; font: 12.5px var(--mono); color: var(--ink); background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 4px; cursor: pointer;
}
.chip:hover { border-color: var(--brand); }

.results { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; margin-top: 14px; }
@media (min-width: 1760px) { .results.is-side { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 7px; min-width: 0; }
.panel-head { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 12px; padding: 10px 16px; border-bottom: 1px solid var(--border); }
.panel-title { font-size: 14.5px; font-weight: 650; overflow-wrap: anywhere; }
.panel-meta { color: var(--muted); font-size: 13px; }
.panel-actions { display: flex; gap: 6px; margin-left: auto; }
.btn-small {
  padding: 3px 9px; font: 13px var(--sans); color: var(--ink); background: var(--panel);
  border: 1px solid var(--border-strong); border-radius: 4px; cursor: pointer;
}
.btn-small:hover { border-color: var(--brand); }
.panel-body { padding: 14px 16px; }
.waiting { color: var(--muted); }
.spinner { display: inline-block; width: 12px; height: 12px; margin-right: 8px; vertical-align: -1px; border: 2px solid var(--border-strong); border-top-color: var(--brand); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.msg { padding: 9px 12px; border-radius: 5px; background: var(--panel-2); }
.msg-bad { background: var(--bad-soft); color: var(--bad); }
.msg-warn { background: var(--warn-soft); color: var(--warn); margin-bottom: 12px; }

.prefix-head { display: flex; flex-wrap: wrap; gap: 2px 10px; align-items: baseline; margin-bottom: 10px; }
.prefix-name { font: 600 15.5px var(--mono); }
.route-block + .route-block { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border); }

.graph-wrap { overflow-x: auto; margin-bottom: 14px; padding: 8px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 5px; }
.graph { display: block; }
.g-edge { fill: none; stroke: var(--edge); stroke-width: 1.5; }
.g-edge-best { stroke: var(--brand); stroke-width: 3.5; }
.g-node rect { fill: var(--panel); stroke: var(--border-strong); stroke-width: 1; }
.g-node:hover rect { stroke: var(--brand); }
.g-node-best rect { stroke: var(--brand); stroke-width: 2; }
.g-node-home rect { fill: var(--top); stroke: var(--top); }
.g-as { fill: var(--ink); font: 650 12.5px var(--sans); }
.g-name { fill: var(--muted); font: 11px var(--sans); }
.g-node-home .g-as { fill: var(--top-ink); }
.g-node-home .g-name { fill: var(--top-muted); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th { padding: 6px 10px; text-align: left; color: var(--muted); font-size: 12.5px; font-weight: 600; white-space: nowrap; border-bottom: 1px solid var(--border-strong); }
td { padding: 7px 10px; vertical-align: top; border-bottom: 1px solid var(--border); }
tbody tr:hover td { background: var(--panel-2); }
tr.row-best td { background: var(--brand-soft); }
tr:last-child td { border-bottom: 0; }
th.num, td.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
th button { padding: 0; font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
th button:hover { color: var(--ink); }
.addr { font-family: var(--mono); font-size: 13px; white-space: nowrap; }
.nowrap { white-space: nowrap; }
.sub { display: block; color: var(--muted); font-size: 12.5px; }
.link-btn { padding: 0; font: inherit; color: var(--brand-ink); background: none; border: 0; text-decoration: underline; cursor: pointer; }
.actions .link-btn { display: block; }
.aspath, .communities { min-width: 200px; }
.aspath { display: flex; flex-wrap: wrap; gap: 3px; }
.asn { padding: 0 6px; font-size: 13px; font-variant-numeric: tabular-nums; text-decoration: none; color: var(--ink); background: var(--panel-2); border: 1px solid var(--border); border-radius: 3px; }
a.asn:hover { border-color: var(--brand); }
.asn-count { color: var(--muted); }
.communities { margin-top: 4px; color: var(--muted); font-size: 12.5px; overflow-wrap: anywhere; }
.badge { display: inline-block; padding: 0 7px; font-size: 12.5px; font-weight: 600; border-radius: 3px; background: var(--panel-2); color: var(--muted); }
.badge-ok { background: var(--ok-soft); color: var(--ok); }
.badge-warn { background: var(--warn-soft); color: var(--warn); }
.badge-bad { background: var(--bad-soft); color: var(--bad); }
.badge-best { background: var(--brand); color: #24120a; }
.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; margin-bottom: 10px; }
.toolbar input { max-width: 300px; font-family: var(--sans); height: 32px; }
.toolbar .count { color: var(--muted); }
.pager { display: flex; align-items: center; gap: 8px; justify-content: flex-end; margin-top: 10px; color: var(--muted); }

.tiles { display: flex; flex-wrap: wrap; gap: 8px 30px; margin-bottom: 12px; }
.tile-value { display: block; font-size: 19px; font-weight: 650; font-variant-numeric: tabular-nums; }
.tile-label { color: var(--muted); font-size: 12.5px; }
.tile-bad .tile-value { color: var(--bad); }
.term { margin: 0; padding: 10px 12px; overflow-x: auto; background: var(--panel-2); border: 1px solid var(--border); border-radius: 5px; font: 12.5px/1.5 var(--mono); }
details.raw { margin-top: 12px; }
details.raw summary { color: var(--muted); cursor: pointer; margin-bottom: 8px; }

.foot { padding: 12px 20px; color: var(--muted); font-size: 12.5px; border-top: 1px solid var(--border); background: var(--panel); }
.foot a { color: inherit; margin-left: 10px; white-space: nowrap; }

@media (max-width: 800px) {
  .shell { grid-template-columns: minmax(0, 1fr); }
  .nav { display: flex; gap: 4px; overflow-x: auto; padding: 8px 10px; border-right: 0; border-bottom: 1px solid var(--border); }
  .nav-group { display: none; }
  .nav-item { width: auto; white-space: nowrap; }
  .main { padding: 12px; }
  .query { padding: 14px; }
  .input-wrap, .input-small { flex: 1 1 100%; }
  .seg-wrap { flex: 1 1 auto; }
  .run { flex: 1 1 100%; height: 40px; }
  .top { flex-wrap: wrap; padding-inline: 14px; }
  .top-contact { display: none; }
  .panel-body { padding: 12px; }
}
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 3s; } }