:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --fg: #1d2330;
  --muted: #6b7280;
  --border: #e3e6eb;
  --grid: #eceef2;
  --accent: #2563eb;
  --accent-fg: #ffffff;
  --accent-soft: #e8efff;
  --warn-bg: #fff7e6;
  --ok: #15803d;
  --err: #b91c1c;
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f131a;
    --panel: #171c25;
    --fg: #e6e9ef;
    --muted: #98a2b3;
    --border: #2a3140;
    --grid: #232a36;
    --accent: #6ea0ff;
    --accent-fg: #0f131a;
    --accent-soft: #1c2a45;
    --warn-bg: #2b2413;
    --ok: #4ade80;
    --err: #f87171;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.wrap { max-width: 1320px; margin: 0 auto; padding-inline: 20px; }
h1 { font-size: 1.5rem; margin: 18px 0 2px; }
h2 { font-size: 1.1rem; margin: 18px 0 10px; }
h2:first-child { margin-top: 0; }
h3 { font-size: .98rem; margin: 0 0 8px; }
.muted { color: var(--muted); font-weight: 400; }
.small { font-size: .85rem; }
code { font-size: .9em; }

.site-header { background: var(--panel); border-bottom: 1px solid var(--border); }
.site-header p { margin: 0 0 10px; }
.tabs { display: flex; gap: 4px; overflow-x: auto; }
.tabs button {
  border: 0; background: none; color: var(--muted); font: inherit; font-weight: 600;
  padding: 10px 14px; border-bottom: 3px solid transparent; cursor: pointer; white-space: nowrap;
}
.tabs button[aria-selected="true"] { color: var(--fg); border-bottom-color: var(--accent); }

main { padding-block: 18px 8px; }
footer { padding-block: 16px 28px; }

.panel {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; margin-bottom: 16px; min-width: 0;
}
.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 16px; align-items: start; }
.split.case { grid-template-columns: minmax(0, 8fr) minmax(280px, 3fr); }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 16px; }
.sticky { position: sticky; top: 12px; }
@media (max-width: 900px) {
  .split, .split.case, .grid-2 { grid-template-columns: minmax(0, 1fr); }
  .sticky { position: static; }
}

.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 14px; }
.btn {
  font: inherit; font-weight: 600; padding: 8px 14px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--border); background: var(--panel); color: var(--fg);
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.note { background: var(--accent-soft); border-radius: 8px; padding: 7px 12px; }

details.group { border-bottom: 1px solid var(--border); padding-block: 4px; }
details.group:last-of-type { border-bottom: 0; }
details > summary { cursor: pointer; font-weight: 600; padding-block: 8px; }
.fields { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 10px 14px; padding-bottom: 12px; }
.field { display: flex; flex-direction: column; gap: 4px; font-size: .85rem; color: var(--muted); }
.field.inline { flex-direction: row; align-items: center; gap: 8px; margin-bottom: 8px; }
.field input, .field select {
  font: inherit; font-size: .95rem; color: var(--fg); background: var(--bg);
  border: 1px solid var(--border); border-radius: 7px; padding: 6px 8px; width: 100%;
}
.field.inline select { width: auto; }
.field input:focus, .field select:focus, .mouth input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.kpis { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-block: 14px 4px; }
.kpi { border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; }
.kpi span { display: block; font-size: .8rem; color: var(--muted); }
.kpi strong { font-size: 1.45rem; font-variant-numeric: tabular-nums; }
.chart { width: 100%; min-height: 60px; }
.caveat { background: var(--warn-bg); border-radius: 8px; padding: 8px 12px; font-size: .85rem; margin: 6px 0 10px; }
.status { min-height: 1.2em; font-size: .85rem; color: var(--muted); margin: 6px 0 0; }
.status.error { color: var(--err); }

.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; margin-bottom: 8px; flex-wrap: wrap; }
.seg button { font: inherit; border: 0; background: none; color: var(--fg); padding: 6px 12px; cursor: pointer; }
.seg button + button { border-left: 1px solid var(--border); }
.seg button[aria-checked="true"] { background: var(--accent); color: var(--accent-fg); }
.seg.big { margin-bottom: 14px; }

.table-wrap { overflow-x: auto; }
table.data { border-collapse: collapse; width: 100%; font-size: .85rem; font-variant-numeric: tabular-nums; }
table.data th, table.data td { padding: 5px 8px; border-bottom: 1px solid var(--border); text-align: right; white-space: nowrap; }
table.data th:first-child, table.data td:first-child, table.data .left { text-align: left; }
table.data th { color: var(--muted); font-weight: 600; }
table.data td.best { font-weight: 700; color: var(--ok); }

table.mouth { border-collapse: collapse; font-variant-numeric: tabular-nums; margin-inline: auto; }
table.mouth th { font-size: .78rem; color: var(--muted); font-weight: 600; padding: 3px 4px; }
table.mouth th.group { border-bottom: 1px solid var(--border); }
table.mouth td { padding: 2px 3px; }
table.mouth td.tooth { font-size: .82rem; color: var(--muted); padding-right: 10px; white-space: nowrap; }
table.mouth td.gap { width: 14px; }
table.mouth tr.arch td { font-weight: 600; font-size: .82rem; padding-top: 10px; }
.mouth input {
  width: 3.2em; text-align: center; font: inherit; font-size: .9rem; color: var(--fg);
  background: var(--bg); border: 1px solid var(--border); border-radius: 5px; padding: 3px 0;
  -moz-appearance: textfield;
}
.mouth input::-webkit-inner-spin-button { -webkit-appearance: none; }
.mouth input.l1 { background: #fff3bf; color: #1d2330; }
.mouth input.l2 { background: #fdd49e; color: #1d2330; }
.mouth input.l3 { background: #e34a33; color: #fff; }
.case-label { font-size: 2.2rem; font-weight: 800; letter-spacing: .02em; margin-bottom: 8px; }

img#figure-img { display: block; max-width: 100%; margin-top: 8px; background: #fff; border-radius: 6px; }
.markdown { overflow-x: auto; font-size: .9rem; }
.markdown table { border-collapse: collapse; margin-block: 8px; }
.markdown th, .markdown td { border: 1px solid var(--border); padding: 4px 8px; }