* { box-sizing: border-box; }
html { background: var(--page); color: var(--ink); scroll-padding-top: 24px; }
body { margin: 0; font: 15px/1.55 var(--sans); }
a { color: inherit; text-underline-offset: 3px; }
a:hover { color: var(--accent-ink); }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
button, input { border-radius: 2px; }
button { background: none; }
button:disabled { cursor: default; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
[hidden] { display: none !important; }
svg { vertical-align: middle; }
.container { max-width: 1168px; margin-inline: auto; padding-inline: 24px; }
.site-header { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; padding-block: 26px; border-bottom: 1px solid var(--rule); min-width: 0; }
.wordmark { font-weight: 600; text-decoration: none; letter-spacing: -.02em; }
.version, .eyebrow { font: 11px/1.5 var(--mono); color: var(--ink-2); }
.version { white-space: nowrap; }
.updated { color: var(--muted); font: 11px/1.5 var(--mono); white-space: nowrap; }
.site-nav { margin-left: auto; display: flex; flex-wrap: wrap; align-items: center; gap: 22px; min-width: 0; }
.site-nav a { text-decoration: none; font-size: 13px; }
.theme-toggle { border: 0; padding: 8px; line-height: 1; }
.theme-toggle svg { width: 18px; height: 18px; }
.hero { padding-top: 76px; }
.eyebrow { margin: 0 0 18px; letter-spacing: .025em; }
h1 { font-size: clamp(28px, 4.2vw, 44px); line-height: 1.18; font-weight: 600; letter-spacing: -.02em; max-width: 28ch; margin: 0 0 28px; text-wrap: pretty; }
.hero-description { color: var(--ink-2); max-width: 60ch; margin: 0; }
.hero-figure { margin: 40px 0; }
.hero-figures { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; }
.hero-figures > div { display: flex; flex-direction: column; padding-inline: 24px; border-left: 1px solid var(--rule); }
.hero-figures > div:first-child { border-left: 0; padding-left: 0; }
.hero-figures dt { color: var(--muted); font-size: 13px; }
.hero-figures dd { order: -1; margin: 0 0 3px; font-size: 32px; line-height: 1.25; font-weight: 500; letter-spacing: -.025em; }
.section { margin-top: 96px; min-width: 0; }
.section > .eyebrow { margin-bottom: 10px; }
h2 { font-size: 22px; line-height: 1.25; font-weight: 600; letter-spacing: -.01em; margin: 0 0 28px; }
h3 { font-size: 15px; font-weight: 600; line-height: 1.4; margin: 0 0 12px; }
p { margin: 0 0 16px; }
.muted { color: var(--muted); }
.leaderboard-lede { max-width: 70ch; margin-top: -12px; color: var(--ink-2); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 8px; left: 8px; transform: translateY(-180%); padding: 8px 16px; background: var(--surface); z-index: 10; }
.skip-link:focus { transform: none; }
.status-note { padding: 16px 0; color: var(--ink-2); }
.analysis-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; gap: 48px 32px; }
.analysis-grid figure { margin: 0; min-width: 0; }
.analysis-grid .full-width { grid-column: 1 / -1; }
.chart { position: relative; min-width: 0; }
.chart:empty::after { content: 'Loading chart…'; color: var(--muted); }
.method-columns { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; }
.method-columns p { color: var(--ink-2); }
.method-reading { margin-bottom: 44px; }
.method-glossary { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 40px; margin: 0; }
.method-glossary > div { min-width: 0; border-top: 1px solid var(--rule); padding-top: 10px; }
.method-glossary dt { font-size: 13px; font-weight: 600; }
.method-glossary dd { margin: 5px 0 0; color: var(--ink-2); font-size: 13px; }
.method-check-list { display: grid; gap: 4px; margin: 8px 0 0; padding-left: 20px; }
.updates-intro { max-width: 82ch; margin-bottom: 24px; color: var(--ink-2); }
.updates-ledger { border-top: 1px solid var(--rule); }
.updates-day { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 24px; border-bottom: 1px solid var(--rule); padding: 12px 0; }
.updates-date-block { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px; padding-top: 8px; }
.updates-date { color: var(--muted); font: 11px/1.5 var(--mono); }
.updates-launch { color: var(--muted); font: 10px/1.4 var(--mono); }
.updates-models { margin: 0; padding: 0; list-style: none; }
.updates-models li + li { border-top: 1px solid var(--rule); }
.update-model-button { display: flex; width: 100%; align-items: baseline; justify-content: space-between; gap: 12px; border: 0; padding: 8px 0; text-align: left; }
.update-model-button:hover .update-model-name, .update-model-button:focus-visible .update-model-name { color: var(--accent-ink); }
.update-model-button.is-selected, .update-model-button.is-highlighted { background: var(--wash); }
.update-model-button.is-receded { opacity: .5; }
.update-model-name { min-width: 0; color: var(--ink-2); font-size: 13px; overflow-wrap: anywhere; }
.update-model-meta { flex: 0 0 auto; color: var(--muted); font: 11px/1.4 var(--mono); white-space: nowrap; }
.updates-expand { margin-top: 8px; border: 0; padding: 6px 0; color: var(--ink-2); font-size: 12px; text-decoration: underline; text-underline-offset: 3px; }
.provenance { border-top: 1px solid var(--rule); padding-top: 24px; margin-top: 28px; display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 10px 24px; font: 12px/1.65 var(--mono); }
.provenance dt { color: var(--ink-2); }
.provenance dd { margin: 0; overflow-wrap: anywhere; user-select: text; }
.source-links { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 24px; font-size: 13px; }
.site-footer { margin-top: 96px; padding-block: 28px; border-top: 1px solid var(--rule); color: var(--muted); font-size: 12px; display: flex; justify-content: space-between; gap: 24px; }
.site-footer p { margin: 0; }
@media (max-width: 899px) {
  .analysis-grid { grid-template-columns: minmax(0, 1fr); }
  .method-columns { grid-template-columns: minmax(0, 1fr); gap: 20px; }
}
@media (max-width: 640px) {
  .container { padding-inline: 16px; }
  .site-header { gap: 8px 14px; padding-block: 20px; }
  .site-nav { width: 100%; margin: 6px 0 0; justify-content: space-between; gap: 8px; }
  .hero { padding-top: 48px; }
  .hero-figures { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 0; }
  .hero-figures > div { padding-inline: 16px; }
  .hero-figures > div:nth-child(odd) { padding-left: 0; border-left: 0; }
  .hero-figures dd { font-size: 28px; }
  .section { margin-top: 64px; }
  .provenance { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .provenance dd { margin-bottom: 12px; }
  .method-glossary { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .updates-day { grid-template-columns: 76px minmax(0, 1fr); gap: 12px; }
  .site-footer { margin-top: 64px; flex-direction: column; gap: 12px; }
}
@media (max-width: 639px) {
  .updated { display: none; }
}
@media (prefers-reduced-motion: no-preference) {
  button, a { transition: opacity 140ms, transform 140ms; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}