:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --gridline: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.1);
  --s1: #2a78d6;
  --s2: #eb6834;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --muted: #898781;
    --gridline: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.1);
    --s1: #3987e5;
    --s2: #d95926;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d;
  --surface: #1a1a19;
  --ink: #ffffff;
  --ink-2: #c3c2b7;
  --muted: #898781;
  --gridline: #2c2c2a;
  --axis: #383835;
  --border: rgba(255, 255, 255, 0.1);
  --s1: #3987e5;
  --s2: #d95926;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif;
}
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}
.wrap { max-width: 1680px; margin: 0 auto; padding: 14px 20px 20px; }

.top { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; margin-bottom: 10px; }
.top h1 { font-size: 20px; font-weight: 600; margin: 0; }
.top select {
  font: inherit; padding: 3px 8px; border-radius: 6px;
  border: 1px solid var(--border); background: var(--surface); color: var(--ink);
}
.top .meta { margin-left: auto; font-size: 12px; color: var(--muted); }

main { transition: opacity 0.15s; }
body.loading main { opacity: 0.5; }

.tier { margin-bottom: 8px; }
.tier > h2 {
  margin: 0 0 6px; font-size: 11px; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted);
}
.grid { display: grid; gap: 10px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 640px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .span2 { grid-column: span 2; }
}
@media (min-width: 1100px) {
  .t1 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .t2 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .t3 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 10px 14px; min-width: 0;
}
.label { font-size: 12px; font-weight: 500; color: var(--ink-2); }
.value { font-size: 26px; font-weight: 600; line-height: 1.2; margin-top: 2px; }
.value.sm { font-size: 20px; }
.note { font-size: 12px; color: var(--ink-2); margin-top: 2px; }
.note.muted, .placeholder .note { color: var(--muted); }

/* charts */
.chart { position: relative; margin-top: 8px; }
.chart svg { display: block; overflow: visible; }
.chart .gl { stroke: var(--gridline); stroke-width: 1; }
.chart .ref { stroke: var(--axis); stroke-width: 1; }
.chart .hair { stroke: var(--axis); stroke-width: 1; }
.chart .ring { stroke: var(--surface); stroke-width: 2; }
.chart .tick { fill: var(--muted); font-size: 10px; font-variant-numeric: tabular-nums; }
.chart .endlabel { fill: var(--ink-2); font-size: 11px; }
.chart rect:focus { outline: none; }
.chart rect:focus-visible { outline: 2px solid var(--s1); outline-offset: 2px; }
.tip {
  position: absolute; z-index: 5; pointer-events: none; white-space: nowrap;
  background: var(--surface); border: 1px solid var(--border); border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12); padding: 6px 8px; font-size: 12px;
}
.tip-x { color: var(--ink-2); margin-bottom: 2px; }
.tip-row strong { font-weight: 600; margin-right: 6px; }
.tip-name { color: var(--ink-2); }
.key { display: inline-block; width: 12px; height: 2px; border-radius: 1px; vertical-align: middle; margin-right: 6px; }
.legend { display: flex; flex-wrap: wrap; gap: 4px 12px; margin-top: 6px; font-size: 12px; color: var(--ink-2); }

.tbl summary { width: max-content; margin-top: 4px; font-size: 11px; color: var(--muted); cursor: pointer; }
.tbl-wrap { max-height: 180px; overflow: auto; margin-top: 4px; }
.tbl table { width: 100%; border-collapse: collapse; font-size: 12px; font-variant-numeric: tabular-nums; }
.tbl th, .tbl td { padding: 2px 6px; text-align: right; white-space: nowrap; border-bottom: 1px solid var(--gridline); }
.tbl th:first-child, .tbl td:first-child { text-align: left; }
.tbl th { font-weight: 500; color: var(--ink-2); }

/* months-of-supply scale */
.scale { position: relative; display: flex; gap: 2px; height: 6px; margin: 10px 0 2px; }
.scale span { background: var(--gridline); border-radius: 3px; }
.scale span:nth-child(2) { background: var(--axis); }
.scale i {
  position: absolute; top: 50%; width: 10px; height: 10px; border-radius: 50%;
  background: var(--ink); box-shadow: 0 0 0 2px var(--surface); transform: translate(-50%, -50%);
}

.tiers { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 4px; margin-top: 6px; font-size: 11px; color: var(--ink-2); }
.tiers b { display: block; font-size: 13px; font-weight: 600; color: var(--ink); }

/* affordability + rent vs own */
.split { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 640px) {
  .split { grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); }
}
.rate-row { display: flex; align-items: baseline; gap: 10px; }
.link { background: none; border: 0; padding: 0; font: inherit; font-size: 12px; color: var(--ink-2); text-decoration: underline; cursor: pointer; }
input[type="range"] { width: 100%; margin: 6px 0 2px; accent-color: var(--s1); }
.pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 6px; }
.bars { display: grid; gap: 8px; margin: 10px 0 6px; }
.bar-row { display: grid; grid-template-columns: 72px minmax(0, 1fr); align-items: center; gap: 8px; font-size: 12px; color: var(--ink-2); }
.bar-track { display: flex; align-items: center; gap: 6px; }
.bar { height: 20px; background: var(--s1); border-radius: 0 4px 4px 0; }
.bar-val { font-weight: 600; color: var(--ink); }

footer { display: flex; flex-wrap: wrap; gap: 4px 16px; margin-top: 4px; font-size: 11px; color: var(--muted); }
footer a { color: inherit; }