:root {
  /* Bright theme only: the page stays light whatever the OS setting. */
  color-scheme: light;
  --page: #f4f7fb;
  --surface: #ffffff;
  --surface-2: #f1f4f9;
  --text: #0b0b0b;
  --text-2: #4a4f57;
  --muted: #6b707a;
  --grid: #e3e7ee;
  --axis: #c3c8d1;
  --border: rgba(16, 24, 40, 0.09);
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 2px 8px rgba(16, 24, 40, 0.05);
  --series-1: #2a78d6;      /* this year / primary series */
  --series-past: #b4b2aa;   /* last year: de-emphasised */
  --accent-wash: #e8f1fc;
  --good: #0ca30c;
  --good-text: #006300;
  --warning: #fab219;
  --warning-wash: #fff6e0;
  --warning-text: #7a5200;
  --critical: #d03b3b;
  --critical-wash: #fdeaea;
  --critical-text: #a12a2a;
  --sample: #7a5200;
  --sample-wash: #fff6e0;
  --radius: 12px;
  --font: system-ui, -apple-system, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body {
  background: var(--page);
  color: var(--text);
  font: 15px/1.45 var(--font);
  -webkit-font-smoothing: antialiased;
}
button, select { font: inherit; color: inherit; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 20px 16px 64px; }

/* ---------- header ---------- */
header.top { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 16px; margin-bottom: 12px; }
header.top h1 { font-size: 22px; margin: 0; letter-spacing: -0.01em; }
header.top .sub { color: var(--text-2); }
.sample-banner {
  display: flex; gap: 10px; align-items: flex-start;
  background: var(--sample-wash); color: var(--text);
  border: 1px solid var(--border); border-left: 4px solid var(--warning);
  border-radius: var(--radius); padding: 10px 14px; margin-bottom: 18px; font-size: 14px;
}
.sample-banner strong { color: var(--sample); }

/* ---------- cards ---------- */
.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(min(100%, 480px), 1fr)); }
.card {
  background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow);
  border-radius: var(--radius); padding: 16px 18px; min-width: 0;
}
.card h2 { font-size: 16px; margin: 0; }
.card .q { color: var(--text-2); margin: 2px 0 12px; font-size: 14px; }
.card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; }
section { margin-top: 16px; }

/* ---------- stat tiles ---------- */
.tiles { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr)); }
.tile { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.tile .label { color: var(--text-2); font-size: 13px; }
.tile .value { font-size: 30px; font-weight: 600; line-height: 1.15; margin-top: 4px; }
.tile .value.hero { font-size: 48px; }
.tile .note { color: var(--muted); font-size: 13px; margin-top: 4px; }
.tile .arrow { color: var(--muted); font-weight: 400; margin: 0 4px; }
.tile.alert { border-left: 4px solid var(--warning); }
.tile button.link { margin-top: 6px; }
.split { display: flex; gap: 18px; flex-wrap: wrap; }
.split > div { display: flex; flex-direction: column; }

/* ---------- status badges (icon + label, never colour alone) ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px; white-space: nowrap;
  font-size: 12.5px; font-weight: 600; border-radius: 999px; padding: 2px 9px;
  background: var(--surface-2); color: var(--text-2); border: 1px solid var(--border);
}
.badge.unclear { background: var(--warning-wash); color: var(--warning-text); }
.badge.failed { background: var(--critical-wash); color: var(--critical-text); }
.badge .ico { font-size: 12px; }

/* ---------- buttons ---------- */
button.link {
  background: none; border: 0; padding: 0; color: var(--series-1);
  cursor: pointer; text-decoration: underline; text-underline-offset: 2px;
}
button.chip {
  border: 1px solid var(--border); background: var(--surface); border-radius: 999px;
  padding: 4px 11px; cursor: pointer; font-size: 13px;
}
button.chip[aria-pressed="true"] { background: var(--text); color: var(--surface); border-color: var(--text); }
select.control {
  border: 1px solid var(--border); background: var(--surface); border-radius: 8px; padding: 5px 8px;
}
:focus-visible { outline: 2px solid var(--series-1); outline-offset: 2px; }

/* ---------- charts ---------- */
.chart { width: 100%; position: relative; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart text { fill: var(--text-2); font-size: 12.5px; font-family: var(--font); }
.chart .tick { fill: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.chart .grid-line { stroke: var(--grid); stroke-width: 1; }
.chart .baseline { stroke: var(--axis); stroke-width: 1; }
.chart .bar { fill: var(--series-1); }
.chart .bar.unclear { fill: var(--warning); }
.chart .bar.failed { fill: var(--critical); }
.chart .hit { fill: transparent; cursor: pointer; }
.chart .row:hover .hit, .chart .row:focus .hit { fill: var(--surface-2); }
.chart .row.selected .label { font-weight: 600; fill: var(--text); }
.chart .value { fill: var(--text); font-variant-numeric: tabular-nums; }
.chart .line { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .dot { stroke: var(--surface); stroke-width: 2; }
.chart .crosshair { stroke: var(--axis); stroke-width: 1; }
.tooltip {
  position: absolute; pointer-events: none; z-index: 5;
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  padding: 7px 10px; font-size: 13px; box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  white-space: nowrap; display: none;
}
.tooltip .t { font-weight: 600; margin-bottom: 2px; }
.tooltip .r { display: flex; align-items: center; gap: 6px; font-variant-numeric: tabular-nums; }
.key { display: inline-block; width: 14px; height: 3px; border-radius: 2px; vertical-align: middle; }
.legend { display: flex; gap: 16px; flex-wrap: wrap; color: var(--text-2); font-size: 13px; margin-bottom: 6px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; margin: 0 -4px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 6px; border-bottom: 1px solid var(--grid); vertical-align: middle; }
th { color: var(--text-2); font-weight: 600; font-size: 12.5px; white-space: nowrap; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr.clickable { cursor: pointer; }
tbody tr.clickable:hover, tbody tr.clickable:focus { background: var(--surface-2); outline: none; }
td .vendor-id { color: var(--muted); font-size: 12.5px; }
.share { display: flex; align-items: center; gap: 8px; min-width: 150px; }
.share .meter { position: relative; flex: 1; height: 8px; background: var(--accent-wash); border-radius: 4px; min-width: 70px; }
.share .meter .fill { position: absolute; left: 0; top: 0; bottom: 0; background: var(--series-1); border-radius: 4px; }
.share .meter .norm { position: absolute; top: -3px; bottom: -3px; width: 2px; background: var(--text); border-radius: 1px; }
.share .pct { font-variant-numeric: tabular-nums; min-width: 38px; text-align: right; }
.table-foot { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 10px; color: var(--muted); font-size: 13px; }

/* ---------- drawer ---------- */
.scrim { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.35); z-index: 20; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(640px, 100vw); z-index: 21;
  background: var(--page); border-left: 1px solid var(--border);
  display: flex; flex-direction: column; box-shadow: -8px 0 32px rgba(0, 0, 0, 0.18);
}
.drawer[hidden], .scrim[hidden] { display: none; }
.drawer-head { padding: 16px 18px 12px; border-bottom: 1px solid var(--border); background: var(--surface); }
.drawer-head h2 { font-size: 17px; margin: 0 32px 2px 0; }
.drawer-head .sub { color: var(--text-2); font-size: 14px; }
.drawer-close { position: absolute; top: 12px; right: 12px; border: 0; background: none; font-size: 22px; cursor: pointer; color: var(--text-2); padding: 4px 8px; }
.filters { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }
.drawer-body { flex: 1; overflow-y: auto; padding: 12px 18px 24px; }
.drawer-foot { padding: 10px 18px; border-top: 1px solid var(--border); background: var(--surface); font-size: 14px; color: var(--text-2); }

.ret { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; margin-bottom: 10px; box-shadow: var(--shadow); }
.ret.is-unclear { border-left: 4px solid var(--warning); }
.ret.is-failed { border-left: 4px solid var(--critical); }
.ret .meta { color: var(--muted); font-size: 12.5px; display: flex; gap: 4px 10px; flex-wrap: wrap; }
.ret .comment { font-size: 15.5px; margin: 6px 0 8px; overflow-wrap: anywhere; }
.ret .comment mark { background: var(--accent-wash); color: inherit; border-radius: 3px; padding: 0 2px; }
.ret .comment.empty { color: var(--muted); font-style: italic; }
.ret .label-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.ret .why { color: var(--text-2); font-size: 13px; }
.ret .error { color: var(--critical-text); font-size: 13px; margin-top: 4px; }
.verdict { margin-left: auto; display: flex; gap: 6px; align-items: center; }
.verdict button {
  width: 36px; height: 32px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--surface); cursor: pointer; font-size: 16px; line-height: 1;
}
.verdict button[aria-pressed="true"].yes { background: var(--good-text); color: #fff; border-color: var(--good-text); }
.verdict button[aria-pressed="true"].no { background: var(--critical); color: #fff; border-color: var(--critical); }
.verdict .saved { font-size: 12px; color: var(--muted); }
.verdict .saved.err { color: var(--critical-text); }
.empty-state { color: var(--text-2); padding: 18px 4px; }

/* ---------- visible failures ---------- */
.error-box {
  background: var(--critical-wash); color: var(--text); border: 1px solid var(--border);
  border-left: 4px solid var(--critical); border-radius: var(--radius); padding: 12px 14px;
}
.error-box strong { color: var(--critical-text); }
.error-box code { font-size: 12.5px; overflow-wrap: anywhere; }
.loading { color: var(--muted); padding: 12px 0; }

.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
footer { color: var(--muted); font-size: 13px; margin-top: 28px; }

/* ---------- client framing ---------- */
.eyebrow { flex-basis: 100%; color: var(--muted); font-size: 13px; letter-spacing: 0.01em; }
.fix-first { border-left: 4px solid var(--series-1); }
.fix-list { margin: 0; padding: 0; list-style: none; counter-reset: fix; display: grid; gap: 10px; }
.fix-list > li { counter-increment: fix; display: grid; grid-template-columns: 28px 1fr; gap: 4px 10px; align-items: start;
  padding: 10px 12px; background: var(--surface-2); border-radius: 8px; }
.fix-list > li::before { content: counter(fix); grid-row: span 3; width: 26px; height: 26px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 600; font-size: 13px; background: var(--series-1); color: #fff; }
.fix-list > li.loading::before, .fix-list > li.none::before { display: none; }
.fix-list .headline { font-weight: 600; font-size: 15.5px; }
.fix-list .evidence { color: var(--text-2); font-size: 14px; }
.fix-list .next { font-size: 13.5px; display: flex; gap: 6px 14px; flex-wrap: wrap; align-items: baseline; }
.fix-list .next .who { color: var(--muted); }

.scale { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr)); }
.scale .cell { border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; }
.scale .cell .k { color: var(--text-2); font-size: 13px; }
.scale .cell .v { font-size: 24px; font-weight: 600; margin: 2px 0; }
.scale .cell .how { color: var(--muted); font-size: 12.5px; font-variant-numeric: tabular-nums; }
.scale .cell.warn { border-left: 4px solid var(--warning); }

.src { display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: 0.02em; text-transform: uppercase;
  border-radius: 4px; padding: 1px 5px; margin: 0 4px 0 0; vertical-align: 1px; border: 1px solid var(--border); cursor: help; }
.src.brief { background: var(--accent-wash); color: var(--text); }
.src.calc { background: var(--surface-2); color: var(--text-2); }
.src.est { background: var(--warning-wash); color: var(--warning-text); }
.src.sample { background: var(--surface); color: var(--muted); }
.legend-tags { color: var(--muted); font-size: 12.5px; margin: 12px 0 0; display: flex; flex-wrap: wrap; gap: 4px 14px; align-items: center; }
.legend-tags .src { margin-right: 2px; }

.open-q { margin: 0; padding-left: 18px; display: grid; gap: 6px; }
.open-q .who { color: var(--muted); font-size: 13.5px; }

/* right / wrong buttons carry words, with the question visible */
.verdict { flex-wrap: wrap; justify-content: flex-end; }
.verdict .ask { font-size: 13px; color: var(--text-2); }
.verdict button { width: auto; padding: 0 12px; font-size: 14px; font-weight: 600; }
.sources { margin-top: 10px; font-size: 13px; color: var(--text-2); }
.sources summary { cursor: pointer; color: var(--series-1); }
.sources ul { margin: 6px 0 0; padding-left: 18px; display: grid; gap: 3px; }

/* the AI's own reason, under its label */
.ret .explain { font-size: 13.5px; color: var(--text-2); margin-top: 6px; }
.ret .explain .lbl { font-size: 11px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); margin-right: 4px; }