.viz, :root {
  --surface:      #fcfcfb;  --page: #f9f9f7;
  --ink:          #0b0b0b;  --ink-2: #52514e;  --muted: #898781;
  --grid:         #e1e0d9;  --axis: #c3c2b7;
  --series-1:     #2a78d6;  /* primary blue — bars, lines, "available" points */
  --sold:         #898781;  /* neutral gray — "sold" points */
  --border:       rgba(11,11,11,0.10);
  --maxw: 960px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --surface:    #1a1a19;  --page: #0d0d0d;
    --ink:        #ffffff;  --ink-2: #c3c2b7;  --muted: #898781;
    --grid:       #2c2c2a;  --axis: #383835;
    --series-1:   #3987e5;  --sold: #898781;
    --border:     rgba(255,255,255,0.10);
  }
}
* { box-sizing: border-box; }
html, body { max-width: 100%; overflow-x: hidden; }
body {
  margin: 0; background: var(--page); color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}
header, main, footer { max-width: var(--maxw); margin: 0 auto; padding: 16px; }
h1 { font-size: 1.5rem; margin: 0; }
h2 { font-size: 1.15rem; margin: 0 0 4px; }
.subtitle { color: var(--ink-2); margin: 4px 0 0; }
.note, .coverage, .hint { color: var(--muted); font-size: 0.8rem; margin: 2px 0;
  overflow-wrap: break-word; }
.kpi-strip { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 12px;
  min-width: 0; }
.kpi .value { font-size: 1.5rem; font-weight: 700; font-variant-numeric: tabular-nums;
  overflow-wrap: break-word; }
.kpi .label { color: var(--muted); font-size: 0.78rem; }
.chart-block { background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 12px; margin-top: 14px; }
.chart { width: 100%; min-height: 300px; overflow-x: hidden; }
.chart > .js-plotly-plot, .chart svg { max-width: 100% !important; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0; }
.filters select { background: var(--page); color: var(--ink); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px; font-size: 0.9rem; flex: 1 1 30%; }
.deals { display: grid; gap: 10px; }
.deal { display: grid; grid-template-columns: 56px 1fr auto; gap: 10px;
  background: var(--page); border: 1px solid var(--border); border-radius: 10px; padding: 10px; }
.deal img { width: 56px; height: 56px; object-fit: cover; border-radius: 8px; }
.deal .cat { font-weight: 600; }
.deal .loc { color: var(--ink-2); font-size: 0.8rem; }
.deal .price { font-weight: 700; text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.deal .sold { color: var(--series-1); font-size: 0.75rem; }
@media (min-width: 640px) {
  .kpi-strip { grid-template-columns: repeat(3, 1fr); }
  h1 { font-size: 1.9rem; }
}