:root {
  color-scheme: light dark;
  --bg: #f7f6f0;
  --surface: #fffef9;
  --surface-soft: #ebeee8;
  --ink: #18252c;
  --muted: #5d6a70;
  --accent: #236b50;
  --accent-ink: #f5fff8;
  --false: #a8453b;
  --false-surface: #f4dfda;
  --footer-bg: #18252c;
  --footer-ink: #f3f7f2;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-document: Georgia, "Times New Roman", "Noto Serif TC", serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #10181c;
    --surface: #19252b;
    --surface-soft: #202f35;
    --ink: #f0f5f1;
    --muted: #b6c2be;
    --accent: #7bd1a4;
    --accent-ink: #102119;
    --false: #f29181;
    --false-surface: #4a2926;
    --footer-bg: #0b1114;
    --footer-ink: #f0f5f1;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #10181c;
  --surface: #19252b;
  --surface-soft: #202f35;
  --ink: #f0f5f1;
  --muted: #b6c2be;
  --accent: #7bd1a4;
  --accent-ink: #102119;
  --false: #f29181;
  --false-surface: #4a2926;
  --footer-bg: #0b1114;
  --footer-ink: #f0f5f1;
}
:root[data-theme="light"] { color-scheme: light; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 1rem/1.55 var(--font); }
[hidden] { display: none !important; }
a { color: var(--accent); text-underline-offset: .22em; overflow-wrap: anywhere; }
a:hover { text-decoration-thickness: .13em; }
button, select { font: inherit; color: var(--ink); background: var(--surface-soft); border: 0; border-radius: .4rem; min-height: 44px; padding: .5rem .8rem; cursor: pointer; }
button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
::selection { background: var(--accent); color: var(--accent-ink); }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { line-height: 1.08; text-wrap: balance; }
p { text-wrap: pretty; }
.shell { width: min(1180px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: absolute; top: 8px; left: 8px; transform: translateY(-160%); padding: 10px; background: var(--surface); z-index: 3; }
.skip-link:focus { transform: none; }
.site-header { background: var(--bg); }
.header-inner { display: flex; gap: 28px; align-items: center; min-height: 96px; }
.brand { color: var(--ink); font-weight: 750; text-decoration: none; letter-spacing: -.03em; }
.header-inner nav { display: flex; gap: 24px; margin-left: auto; }
.header-inner nav a { color: var(--ink); text-decoration: none; }
.preferences, .language-switch { display: flex; gap: 4px; }
.preferences { gap: 12px; align-items: center; }
.hero { padding-top: clamp(48px, 8vw, 110px); padding-bottom: 64px; }
h1 { font-size: clamp(4.2rem, 12.6vw, 11rem); letter-spacing: -.065em; font-weight: 720; line-height: .96; }
.hero-bottom { display: flex; align-items: end; justify-content: space-between; gap: 48px; margin-top: 48px; }
.lede { font-size: clamp(1.25rem, 2.1vw, 1.6rem); max-width: 37ch; }
.primary-action { flex-shrink: 0; padding: 16px 22px; border-radius: .4rem; background: var(--accent); color: var(--accent-ink); text-decoration: none; font-weight: 650; }
.study-label { color: var(--muted); margin-top: 36px; }
.status { padding-bottom: 40px; font-weight: 650; }
section[id] { scroll-margin-top: 24px; }
.caught-section, .fixes-section { background: var(--surface-soft); padding-block: 64px; }
.section-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; margin-bottom: 38px; }
h2 { font-size: clamp(1.85rem, 3.2vw, 2.75rem); letter-spacing: -.035em; max-width: 22ch; }
.section-intro p { max-width: 56ch; }
.cards { display: grid; gap: 24px; }
.post-card { background: var(--surface); padding: clamp(22px, 3vw, 40px); border-radius: .65rem; }
.card-header { display: flex; justify-content: space-between; align-items: start; gap: 24px; margin-bottom: 28px; }
.card-header h3 { font-size: 1.35rem; letter-spacing: -.02em; }
.card-header h3 a { color: var(--ink); }
.post-date { display: block; color: var(--muted); margin-top: 6px; }
.verdict { color: var(--false); background: var(--false-surface); padding: 6px 12px; border-radius: .3rem; font-weight: 650; }
.comparison-list { display: grid; gap: 28px; }
.comparison { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 48px; }
.metric { grid-column: 1 / -1; font-weight: 650; }
.value-label { display: block; color: var(--muted); margin-bottom: 4px; }
.value { display: block; font: 500 clamp(1.6rem, 3.2vw, 2.7rem)/1.12 var(--font-document); font-variant-numeric: tabular-nums; letter-spacing: -.025em; overflow-wrap: anywhere; }
.claimed .value { color: var(--false); }
.filed .value { color: var(--accent); }
.filing-link { display: inline-block; margin-top: 12px; }
.card-note, .note { margin-top: 24px; color: var(--muted); max-width: 85ch; }
.card-evidence { display: inline-block; margin-top: 20px; }
.coverage-section, .provenance-section { padding-block: 72px; }
.coverage-controls { display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 32px; }
.coverage-controls label { display: grid; gap: 8px; }
select { min-width: 180px; }
.coverage-results { display: grid; gap: 28px; }
.source-panel { padding: 32px; background: var(--surface-soft); border-radius: .65rem; }
.source-heading { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 12px; }
.source-heading h3 { font-size: 1.4rem; }
.sample-size { font-size: 1.2rem; font-weight: 650; font-variant-numeric: tabular-nums; }
.outcomes { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; margin: 28px 0; }
.outcomes dt { color: var(--muted); }
.outcomes dd { margin: 6px 0 0; font-size: 2.2rem; font-weight: 600; line-height: 1; font-variant-numeric: tabular-nums; }
.source-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 36px; }
.source-detail p { max-width: 65ch; }
.source-detail .scope { grid-column: 1 / -1; }
.source-reference { display: inline-block; margin-top: 20px; }
.method-notes { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 36px; margin-top: 36px; }
.method-notes p { color: var(--muted); }
.fix-list { display: grid; gap: 24px; }
.fix-row { padding: 28px; background: var(--surface); border-radius: .65rem; }
.fix-row h3 { font-size: 1.25rem; margin-bottom: 16px; }
.before-after { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-block: 16px; }
.before-after strong { display: block; margin-bottom: 6px; }
.provenance-section > p { margin-top: 24px; max-width: 72ch; }
.evidence-links { display: flex; gap: 24px; flex-wrap: wrap; margin-block: 28px; }
summary { cursor: pointer; padding-block: 12px; }
#hash-list { padding-left: 20px; }
#hash-list li { margin-block: 16px; overflow-wrap: anywhere; }
.hash { display: block; color: var(--muted); font-variant-numeric: tabular-nums; }
.site-footer { background: var(--footer-bg); color: var(--footer-ink); padding-block: 36px; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; }
.footer-inner p { margin-right: auto; font-weight: 650; }
.footer-inner a { color: var(--footer-ink); }
@media (max-width: 900px) {
  .header-inner { flex-wrap: wrap; gap: 16px; padding-block: 20px; }
  .header-inner nav { order: 3; width: 100%; margin-left: 0; }
  .preferences { margin-left: auto; }
  .outcomes { grid-template-columns: repeat(3, 1fr); gap: 24px; }
}
@media (max-width: 600px) {
  .shell { width: calc(100% - 36px); }
  .header-inner { column-gap: 8px; }
  .brand { font-size: .95rem; max-width: 10em; line-height: 1.2; }
  .preferences { gap: 6px; }
  .preferences button { padding-inline: .55rem; }
  .header-inner nav { justify-content: space-between; gap: 10px; }
  .hero { padding-top: 38px; padding-bottom: 42px; }
  .hero-bottom { display: block; margin-top: 28px; }
  .primary-action { display: inline-block; margin-top: 24px; }
  .study-label { margin-top: 26px; }
  .caught-section, .fixes-section { padding-block: 40px; }
  .section-intro, .method-notes { grid-template-columns: 1fr; gap: 20px; }
  .section-intro { margin-bottom: 28px; }
  .card-header { flex-wrap: wrap; gap: 16px; }
  .comparison { grid-template-columns: 1fr; gap: 16px; }
  .metric { grid-column: auto; }
  .filed { padding: 18px; background: var(--surface-soft); border-radius: .35rem; }
  .coverage-section, .provenance-section { padding-block: 42px; }
  .coverage-controls { display: grid; grid-template-columns: 1fr; gap: 16px; }
  select { width: 100%; min-width: 0; }
  .source-panel { padding: 24px; }
  .outcomes { grid-template-columns: repeat(2, 1fr); gap: 24px 12px; }
  .source-detail, .before-after { grid-template-columns: 1fr; gap: 16px; }
  .source-detail .scope { grid-column: auto; }
  .footer-inner { display: grid; gap: 16px; }
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
  button, .primary-action { transition: background-color 150ms ease, color 150ms ease; }
}