:root {
  --bg: #f6f6f3;
  --surface: #ffffff;
  --fg: #1c1e22;
  --muted: #5b616b;
  --faint: #8a9099;
  --line: #e2e3e7;
  --accent: #2f5bd3;
  --accent-soft: #e9effc;
  --good: #1e7a4c;
  --bad: #b42318;
  --bar: #2f5bd3;
  --bar-neg: #9aa3b5;
  --bar-adj: #c3c8d2;

  --t-parent: #d9480f;
  --t-rebrand: #7048e8;
  --t-same: #0c8599;
  --t-stale: #c98a00;
  --t-blank: #9aa0a6;
  --t-near: #3b7fc4;
  --t-near-bg: #d6e6f6;
  --t-ref: #2f9e44;
  --t-ref-bg: #d5efdb;

  --c-scoring: #4c6ef5;
  --c-reference: #12a37a;
  --c-answers: #e8890c;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #131417;
    --surface: #1b1d21;
    --fg: #e8e9ec;
    --muted: #a3a9b3;
    --faint: #7c838e;
    --line: #2d3036;
    --accent: #7c9cff;
    --accent-soft: #1f2a45;
    --good: #5cc98f;
    --bad: #ff8a80;
    --bar: #7c9cff;
    --bar-neg: #5d6576;
    --bar-adj: #454b57;
    --t-parent: #ff7a45;
    --t-rebrand: #a58bff;
    --t-same: #3bc9db;
    --t-stale: #f2b84b;
    --t-blank: #7d838b;
    --t-near: #74b0ef;
    --t-near-bg: #22364d;
    --t-ref: #69d483;
    --t-ref-bg: #1f3a27;
    --c-scoring: #8199ff;
    --c-reference: #3fd3a6;
    --c-answers: #ffa94d;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #131417;
  --surface: #1b1d21;
  --fg: #e8e9ec;
  --muted: #a3a9b3;
  --faint: #7c838e;
  --line: #2d3036;
  --accent: #7c9cff;
  --accent-soft: #1f2a45;
  --good: #5cc98f;
  --bad: #ff8a80;
  --bar: #7c9cff;
  --bar-neg: #5d6576;
  --bar-adj: #454b57;
  --t-parent: #ff7a45;
  --t-rebrand: #a58bff;
  --t-same: #3bc9db;
  --t-stale: #f2b84b;
  --t-blank: #7d838b;
  --t-near: #74b0ef;
  --t-near-bg: #22364d;
  --t-ref: #69d483;
  --t-ref-bg: #1f3a27;
  --c-scoring: #8199ff;
  --c-reference: #3fd3a6;
  --c-answers: #ffa94d;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.defs { position: absolute; width: 0; height: 0; overflow: hidden; }

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding-inline: 16px;
}

main.wrap { padding-block: 32px 8px; }

.hero { padding-block: 8px 20px; }
.eyebrow {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.02em;
}
.hero h1 {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.3;
  font-weight: 650;
  max-width: 46ch;
}
.synthetic {
  display: inline-block;
  margin: 14px 0 0;
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  background: var(--surface);
}
.hero-note { margin: 10px 0 0; color: var(--muted); }
.nav { margin: 14px 0 0; font-size: 14px; }

section {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
  margin-block: 16px;
  min-width: 0;
}
h2 { margin: 0 0 8px; font-size: 18px; font-weight: 650; }
.lede { margin: 0 0 14px; color: var(--muted); max-width: 72ch; }
.stat { margin: 12px 0 4px; font-weight: 600; }
.callout {
  margin: 0 0 12px;
  padding: 12px 14px;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 8px 8px 0;
}
.check-line { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.ok { color: var(--good); font-weight: 600; }
.fail { color: var(--bad); font-weight: 600; }

a { color: var(--accent); }

/* tables */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; color: var(--muted); white-space: nowrap; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.score tbody tr { cursor: pointer; }
.score tbody tr:hover { background: var(--accent-soft); }
.score tbody tr.selected { background: var(--accent-soft); box-shadow: inset 3px 0 0 var(--accent); }
.score tbody tr:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.score .type { display: block; color: var(--muted); font-size: 12px; }
.score .rank { color: var(--faint); width: 2em; }
.sort-btn {
  font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer;
  display: inline-flex; gap: 4px; align-items: center;
}
.sort-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px; }
.sort-btn .arrow { color: var(--accent); font-size: 11px; }
.rows td { font-size: 13px; }
.rows .blank { color: var(--faint); font-style: italic; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12.5px; word-break: break-all; }

/* controls */
.controls { display: flex; flex-wrap: wrap; gap: 10px 18px; margin: 4px 0 12px; }
.controls label { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); }
select, button {
  font: inherit; font-size: 14px; color: var(--fg); background: var(--surface);
  border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px;
}
button { cursor: pointer; font-weight: 600; }
button:hover { border-color: var(--accent); }
select:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 12px; }
.filters button[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

.toggle { display: inline-flex; gap: 10px; align-items: center; font-weight: 600; cursor: pointer; margin: 2px 0 10px; }
.toggle input { width: 18px; height: 18px; accent-color: var(--accent); }

/* charts */
.chart { width: 100%; min-width: 0; }
.chart svg, .panel svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart text, .panel text { fill: var(--fg); font-size: 12px; }
.chart text.muted, .panel text.muted { fill: var(--muted); }
.axis { stroke: var(--line); }
.zero { stroke: var(--faint); }
.tick { stroke: var(--fg); }
.bar-pos { fill: var(--bar); }
.bar-neg { fill: var(--bar-neg); }
.bar-adj { fill: var(--bar-adj); }
.hit { fill: transparent; }
[role="button"] { cursor: pointer; }
[role="button"]:hover .bar-pos, [role="button"]:hover .bar-neg { opacity: 0.85; }
[role="button"]:focus { outline: none; }
[role="button"]:focus-visible .hit { stroke: var(--accent); stroke-width: 2; }
g.active .hit { stroke: var(--accent); stroke-width: 1.5; stroke-dasharray: 3 2; }

.panels { display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 760px) { .panels { grid-template-columns: 1fr 1fr; } }
.panel { min-width: 0; border: 1px solid var(--line); border-radius: 10px; padding: 12px 12px 6px; }
.panel h3 { margin: 0 0 2px; font-size: 14px; }
.panel p { margin: 0 0 8px; color: var(--muted); font-size: 12.5px; }

.fill-parent_company { fill: var(--t-parent); }
.fill-pre_rebrand { fill: var(--t-rebrand); }
.fill-same_name { fill: var(--t-same); }
.fill-stale_value { fill: var(--t-stale); }
.fill-no_value { fill: var(--t-blank); }
.fill-near_match { fill: url(#pat-near_match); stroke: var(--t-near); stroke-width: 0.75; }
.fill-ref_outdated { fill: url(#pat-ref_outdated); stroke: var(--t-ref); stroke-width: 0.75; }
.pat-bg-near { fill: var(--t-near-bg); }
.pat-fg-near { fill: var(--t-near); }
.pat-bg-ref { fill: var(--t-ref-bg); }
.pat-fg-ref { fill: var(--t-ref); }
.fill-scoring { fill: var(--c-scoring); }
.fill-reference { fill: var(--c-reference); }
.fill-answers { fill: var(--c-answers); }

.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; margin: 0 0 14px; font-size: 13px; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.sw { width: 12px; height: 12px; border-radius: 3px; display: inline-block; flex: none; }
.sw-parent_company { background: var(--t-parent); }
.sw-pre_rebrand { background: var(--t-rebrand); }
.sw-same_name { background: var(--t-same); }
.sw-stale_value { background: var(--t-stale); }
.sw-no_value { background: var(--t-blank); }
.sw-near_match { background: repeating-linear-gradient(45deg, var(--t-near) 0 2px, var(--t-near-bg) 2px 4px); outline: 1px solid var(--t-near); }
.sw-ref_outdated { background: repeating-linear-gradient(-45deg, var(--t-ref) 0 2px, var(--t-ref-bg) 2px 4px); outline: 1px solid var(--t-ref); }
.sw-scoring { background: var(--c-scoring); }
.sw-reference { background: var(--c-reference); }
.sw-answers { background: var(--c-answers); }

.tag-chip { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }

/* check before posting */
.result-grid { display: grid; grid-template-columns: 1fr; gap: 10px; margin-top: 6px; }
.result-grid p { margin: 0; }
.pill-list { display: flex; flex-wrap: wrap; gap: 6px; margin: 4px 0 0; padding: 0; list-style: none; }
.pill-list li { border: 1px solid var(--line); border-radius: 999px; padding: 2px 10px; font-size: 13px; color: var(--muted); }
.pill-list b { color: var(--fg); }

/* draft post */
.post {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  background: var(--bg);
}
.post p { margin: 0 0 8px; }
.post p:last-child { margin-bottom: 0; }
.post-actions { display: flex; align-items: center; gap: 12px; margin-top: 10px; }
.copy-status { color: var(--muted); font-size: 13px; }

/* how it's scored */
.how dl { margin: 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; }
.how dt { font-weight: 600; }
.how dd { margin: 2px 0 0; color: var(--muted); }
@media (min-width: 760px) {
  .how dl { grid-template-columns: 220px minmax(0, 1fr); gap: 10px 18px; }
  .how dd { margin: 0; }
}
.how h3 { font-size: 15px; margin: 18px 0 8px; }
.how h3:first-child { margin-top: 0; }
.planted td { font-size: 13px; }
.assumptions { margin: 0; padding-left: 20px; color: var(--muted); }
.assumptions li { margin: 0 0 6px; }
.nowrap { white-space: nowrap; }

details summary { cursor: pointer; font-weight: 650; font-size: 18px; }
.checks { margin: 12px 0 0; padding-left: 0; list-style: none; font-size: 14px; }
.checks li { padding: 6px 0; border-bottom: 1px solid var(--line); }
.checks .detail { display: block; color: var(--muted); font-size: 13px; }

.questions { margin: 0; padding-left: 20px; }
.questions li { margin: 0 0 8px; }

.foot { padding-block: 8px 40px; color: var(--muted); font-size: 13px; }

@media (max-width: 480px) {
  section { padding: 16px 14px; }
  th, td { padding: 7px 8px; }
}