/* BGPKIT Labs shared design system.
 *
 * Derived from the atlas/broker view: warm paper, hairline rules, mono labels, one accent.
 * Every Labs project copies this file into its own asset directory and loads it before its
 * page-specific stylesheet, so a project can override spacing without inventing a palette.
 *
 * Header contract:
 *   <header class="labs-bar">
 *     <a class="labs-brand" href="https://labs.bgpkit.com">BGPKIT Labs</a>
 *     <span class="labs-sep">/</span>
 *     <span class="labs-project">project name</span>
 *     <nav class="labs-nav"><a href="...">source</a><a href="...">api</a></nav>
 *   </header>
 */

:root {
  color-scheme: light;
  --paper: #f1efe8;
  --panel: #fbfaf5;
  --panel-sunk: #f5f3eb;
  --ink: #171610;
  --ink-2: #3d3a31;
  --muted: #5f5b4e;
  --faint: #706b5d;
  --rule: #ddd7c7;
  --rule-2: #c9c2ae;
  --accent: #0e5a46;
  --accent-ink: #0a4435;
  --ok: #0e6b52;
  --warn: #9a5a06;
  --fail: #a02517;
  --unknown: #6b6a63;
  --focus: #1d4ed8;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background:
    radial-gradient(1100px 420px at 12% -8%, #faf8f1 0%, rgba(250, 248, 241, 0) 70%),
    var(--paper);
  color: var(--ink);
  font: 13px/1.5 var(--sans);
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-ink); }

.labs-bar {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 28px;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--faint);
}

.labs-brand {
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.08em;
}

.labs-sep { color: var(--rule-2); }

.labs-project { color: var(--ink-2); }

.labs-nav { margin-left: auto; display: flex; gap: 16px; }

.labs-nav a {
  color: var(--faint);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
}

.labs-nav a:hover { color: var(--ink); border-color: var(--rule-2); }

.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 26px 28px 60px;
}

.masthead { padding-bottom: 18px; border-bottom: 1px solid var(--rule); }

.meta-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 16px;
}

.meta-row .slash { color: var(--rule-2); padding: 0 4px; }

.masthead-main { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }

.wordmark { display: flex; align-items: center; gap: 12px; }

.wordmark h1 {
  margin: 0;
  font-family: var(--sans);
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.claim {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  max-width: 520px;
}

.claim-n {
  font-family: var(--mono);
  color: var(--ink);
  font-size: 14px;
}

.deck {
  margin: 14px 0 0;
  max-width: 820px;
  color: var(--ink-2);
  font-size: 13.5px;
}

.kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  margin: 22px 0 0;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.kpi { background: var(--panel); padding: 12px 14px 13px; }

.kpi-label {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}

.kpi-value {
  margin: 0;
  font-family: var(--mono);
  font-size: 22px;
  line-height: 1.1;
  color: var(--ink);
}

.kpi-meta { margin: 5px 0 0; font-size: 11px; color: var(--faint); }

.panel {
  background: var(--panel);
  border: 1px solid var(--rule);
  padding: 16px 18px;
}

.panel + .panel { margin-top: 18px; }

.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
}

.panel-head h2 {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--ink-2);
}

.panel-note { font-size: 11.5px; color: var(--faint); }

.section-h {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
  font-weight: 500;
  margin: 0 0 10px;
}

table { width: 100%; border-collapse: collapse; font-size: 12.5px; }

th {
  text-align: left;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
  font-weight: 500;
  padding: 0 10px 8px 0;
  border-bottom: 1px solid var(--rule);
  white-space: nowrap;
}

td { padding: 7px 10px 7px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }

tr:last-child td { border-bottom: 0; }

td.num, th.num { text-align: right; font-family: var(--mono); }

.mono { font-family: var(--mono); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 1px 7px;
  border: 1px solid var(--rule-2);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

.chip[data-tone="ok"] { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, var(--rule)); }
.chip[data-tone="warn"] { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, var(--rule)); }
.chip[data-tone="fail"] { color: var(--fail); border-color: color-mix(in srgb, var(--fail) 40%, var(--rule)); }
.chip[data-tone="muted"] { color: var(--unknown); }

.dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

button, .btn {
  font-family: var(--sans);
  font-size: 12.5px;
  padding: 8px 14px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fbfaf5;
  border-radius: 2px;
  cursor: pointer;
}

button:hover, .btn:hover { background: #2a2820; }

button.ghost, .btn.ghost {
  background: transparent;
  color: var(--ink-2);
  border-color: var(--rule-2);
}

button.ghost:hover, .btn.ghost:hover { border-color: var(--ink-2); color: var(--ink); }

input[type="text"], input[type="search"], select {
  font-family: var(--mono);
  font-size: 13px;
  padding: 8px 10px;
  border: 1px solid var(--rule-2);
  background: var(--panel);
  color: var(--ink);
  border-radius: 2px;
}

input:focus, select:focus, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
}

.field-label {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 5px;
}

.empty {
  padding: 22px 0;
  color: var(--faint);
  font-size: 12.5px;
}

.provenance {
  margin: 22px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--faint);
}

.foot {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px 48px;
  color: var(--faint);
  font-size: 11.5px;
}

.foot a { color: var(--muted); }

.note { color: var(--faint); font-size: 11.5px; }

@media (max-width: 760px) {
  .labs-bar { padding: 10px 16px; flex-wrap: wrap; }
  .labs-nav { margin-left: 0; width: 100%; gap: 12px; }
  .page { padding: 20px 16px 48px; }
  .foot { padding: 0 16px 40px; }
  .wordmark h1 { font-size: 24px; }
  .meta-row { flex-direction: column; gap: 4px; }
}