:root {
  --black: #000000;
  --ink: #0a0a0a;
  --gray-900: #1a1a1a;
  --gray-700: #4b4b4b;
  --gray-500: #737373;
  --gray-400: #9a9a9a;
  --gray-300: #cfcfcf;
  --gray-200: #e5e5e5;
  --gray-100: #f4f4f4;
  --white: #ffffff;
  --border: var(--gray-200);
  --border-strong: var(--black);
  --radius: 6px;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
body {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--black);
  background: var(--white);
  line-height: 1.5;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---- Accessibility ---- */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; top: -100px; left: 16px; z-index: 100; padding: 8px 12px; background: var(--black); color: var(--white); }
.skip-link:focus { top: 8px; }
:focus-visible { outline: 2px solid var(--black); outline-offset: 2px; }

/* ---- Navigation ---- */
.nav { border-bottom: 1px solid var(--border-strong); background: var(--white); }
.nav-inner { display: flex; align-items: center; gap: 32px; height: 60px; }
.wordmark { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; letter-spacing: -0.01em; white-space: nowrap; }
.wordmark:hover { text-decoration: none; }
.mark { width: 22px; height: 22px; flex: none; display: block; border-radius: 3px; object-fit: cover; }
.nav-links { display: flex; gap: 24px; font-weight: 500; color: var(--gray-700); }
.nav-links a { padding: 20px 0; border-bottom: 2px solid transparent; }
.nav-links a:hover { color: var(--black); text-decoration: none; }
.nav-links a.active { color: var(--black); border-bottom-color: var(--black); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.ticker-chip { font-family: var(--mono); font-size: 12px; padding: 4px 8px; border: 1px solid var(--border); border-radius: 4px; color: var(--gray-700); }

.subnav { border-bottom: 1px solid var(--border); }
.subnav-inner { display: flex; gap: 22px; height: 40px; align-items: center; font-size: 13px; color: var(--gray-500); overflow-x: auto; white-space: nowrap; }
.subnav-inner a, .subnav-inner span { padding: 10px 0; border-bottom: 2px solid transparent; }
.subnav-inner a.active { color: var(--black); border-bottom-color: var(--black); font-weight: 500; }
.subnav-inner a:hover { text-decoration: none; color: var(--black); }

/* ---- Breadcrumb ---- */
.breadcrumb { display: flex; gap: 8px; align-items: center; font-size: 12px; color: var(--gray-500); padding: 20px 0 16px; }
.breadcrumb a:hover { color: var(--black); }
.breadcrumb [aria-current] { color: var(--black); }

/* ---- Tracker header ---- */
.tracker-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; padding-bottom: 20px; flex-wrap: wrap; }
.tracker-ident { display: flex; gap: 16px; align-items: flex-start; min-width: 0; }
.monogram { width: 56px; height: 56px; flex: none; border: 1px solid var(--border-strong); border-radius: var(--radius); display: grid; place-items: center; background: var(--white); }
.monogram img { display: block; width: 34px; height: 34px; }
.tracker-head h1 { font-size: 26px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; }
.tracker-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 6px; font-size: 13px; color: var(--gray-500); }
.dot { width: 3px; height: 3px; border-radius: 50%; background: var(--gray-400); display: inline-block; }

.headline { text-align: right; flex: none; }
.headline-value { font-family: var(--mono); font-size: 34px; font-weight: 500; letter-spacing: -0.02em; line-height: 1.1; font-variant-numeric: tabular-nums; }
.headline-unit { font-size: 14px; color: var(--gray-500); margin-left: 6px; font-family: var(--sans); font-weight: 500; }
.headline-change { display: flex; justify-content: flex-end; align-items: center; gap: 8px; margin-top: 8px; font-size: 12px; color: var(--gray-500); }
.badge { font-family: var(--mono); font-size: 12px; padding: 3px 8px; border-radius: 4px; border: 1px solid var(--black); color: var(--black); background: var(--white); }
.badge.up { background: var(--black); color: var(--white); }
.badge.down { background: var(--white); color: var(--black); }

.notice { margin-bottom: 20px; padding: 12px 14px; border: 1px solid var(--black); }

/* ---- Layout ---- */
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 20px; align-items: start; }
.sidebar { display: grid; gap: 20px; }

/* ---- Panels ---- */
.panel { border: 1px solid var(--border); border-radius: var(--radius); background: var(--white); }
.panel-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 16px 18px; border-bottom: 1px solid var(--border); }
.panel-head.compact { padding: 12px 16px; align-items: center; }
.panel-title { font-size: 14px; font-weight: 600; }
.panel-sub { font-size: 12px; color: var(--gray-500); margin-top: 2px; }
.panel-body { padding: 14px 16px; }
.chart-panel { padding-bottom: 12px; }

.toolbar-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.range-bar { display: inline-flex; border: 1px solid var(--border); border-radius: 4px; overflow: hidden; }
.range-btn { font-family: var(--mono); font-size: 12px; color: var(--gray-700); background: var(--white); border: none; border-right: 1px solid var(--border); padding: 6px 12px; cursor: pointer; }
.range-btn:last-child { border-right: none; }
.range-btn:hover { background: var(--gray-100); color: var(--black); }
.range-btn.active { background: var(--black); color: var(--white); }
.action-btn { font-family: var(--sans); font-size: 12px; font-weight: 500; color: var(--black); background: var(--white); border: 1px solid var(--border); border-radius: 4px; padding: 6px 12px; cursor: pointer; }
.action-btn:hover { border-color: var(--black); }

.chart-wrap { position: relative; height: clamp(320px, 48vh, 480px); width: 100%; padding: 16px 12px 0 4px; }
.chart-error { display: flex; align-items: center; justify-content: center; height: 100%; padding: 24px; text-align: center; color: var(--gray-700); border: 1px dashed var(--gray-300); margin: 0 12px; }
.legend { display: flex; gap: 20px; padding: 10px 18px 4px; font-size: 12px; color: var(--gray-500); }
.legend-item { display: inline-flex; align-items: center; gap: 8px; }
.swatch { width: 18px; border-top: 2px solid var(--black); }
.swatch.dashed { border-top: 2px dashed var(--gray-500); }

/* ---- Statistics list ---- */
.stat-list > div { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 10px 16px; border-bottom: 1px solid var(--border); }
.stat-list > div:last-child { border-bottom: none; }
.stat-list dt { color: var(--gray-700); font-size: 13px; }
.stat-list dd { font-family: var(--mono); font-size: 13px; font-variant-numeric: tabular-nums; }
.stat-list .sub dt, .stat-list .sub dd { color: var(--gray-500); font-size: 12px; }
.stat-list .sub { padding-top: 0; margin-top: -6px; border-bottom: 1px solid var(--border); }

.prose p { color: var(--gray-700); font-size: 13px; }
.prose p + p { margin-top: 10px; }

.related { list-style: none; }
.related li { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 10px 16px; border-bottom: 1px solid var(--border); font-size: 13px; color: var(--gray-700); }
.related li:last-child { border-bottom: none; }
.tag { font-family: var(--mono); font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; padding: 2px 6px; border: 1px solid var(--border); border-radius: 3px; color: var(--gray-500); }

/* ---- Table ---- */
.table-panel { margin-top: 20px; }
.table-scroll { overflow-x: auto; }
.summary { width: 100%; border-collapse: collapse; font-size: 13px; }
.summary th, .summary td { padding: 11px 18px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
.summary th { font-size: 11px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--gray-500); background: var(--gray-100); }
.summary td.num, .summary th.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
.summary tbody tr { cursor: pointer; }
.summary tbody tr:hover td { background: var(--gray-100); }
.summary tbody tr:last-child td { border-bottom: none; }
.summary tbody tr.active td { font-weight: 600; }
.summary tbody tr.active td:first-child { box-shadow: inset 3px 0 0 var(--black); }

/* ---- Static pages ---- */
.page { padding-bottom: 20px; }
.page-prose { max-width: 720px; padding: 8px 0 40px; }
.page-prose h1 { font-size: 28px; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 16px; }
.page-prose h2 { font-size: 16px; font-weight: 600; margin: 28px 0 10px; }
.page-prose p { font-size: 14px; }
.page-prose a { text-decoration: underline; text-underline-offset: 2px; }
.definitions > div { display: grid; grid-template-columns: 160px 1fr; gap: 12px; padding: 10px 0; border-top: 1px solid var(--border); font-size: 13px; }
.definitions > div:last-child { border-bottom: 1px solid var(--border); }
.definitions dt { font-weight: 600; }
.definitions dd { color: var(--gray-700); }

/* ---- Footer ---- */
.footer { margin-top: 48px; border-top: 1px solid var(--border-strong); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; padding: 36px 24px 28px; }
.footer-brand p { margin-top: 12px; max-width: 320px; color: var(--gray-500); font-size: 13px; }
.footer-col { display: grid; gap: 8px; align-content: start; font-size: 13px; color: var(--gray-500); }
.footer-col h3 { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--black); margin-bottom: 4px; }
.footer-col a { color: var(--gray-700); }
.footer-col a:hover { color: var(--black); }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 16px 24px 28px; border-top: 1px solid var(--border); font-size: 12px; color: var(--gray-500); }

/* ---- Responsive ---- */
@media (max-width: 960px) {
  .layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .nav-inner { gap: 16px; }
  .nav-right { display: none; }
  .tracker-head { flex-direction: column; }
  .headline { text-align: left; }
  .headline-change { justify-content: flex-start; }
  .footer-grid { grid-template-columns: 1fr; }
  .definitions > div { grid-template-columns: 1fr; gap: 4px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
@media print {
  .nav, .subnav, .skip-link, .toolbar-actions, .footer { display: none; }
  .layout { grid-template-columns: 1fr; }
  .panel { break-inside: avoid; }
}