@font-face {
  font-family: "DM Sans";
  src: url("assets/fonts/dm-sans-latin.woff2") format("woff2");
  font-weight: 100 1000;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --background: #070b14;
  --panel: #11182a;
  --border: #35415d;
  --text: #f7f8ff;
  --muted: #9ca8c2;
  --llm: #60a5fa;
  --jev: #2dd4bf;
  --result: #f59e0b;
}

* { box-sizing: border-box; }
html { scroll-padding-top: 24px; }
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: "DM Sans", sans-serif;
  line-height: 1.6;
}
a { color: var(--llm); text-underline-offset: 4px; }
a:focus-visible { outline: 2px solid var(--llm); outline-offset: 5px; }
.wrap { width: min(100% - 64px, 1328px); margin-inline: auto; }
.skip-link { position: absolute; top: -80px; left: 24px; padding: 10px 16px; background: var(--panel); z-index: 2; }
.skip-link:focus { top: 12px; }
.page-header, .page-footer { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.page-header { padding-block: 24px; border-bottom: 1px solid var(--border); }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-size: 21px; font-weight: 750; text-decoration: none; }
nav, .evidence-links { display: flex; gap: 24px; flex-wrap: wrap; }
nav { font-size: 14px; }
.intro { padding-block: 48px 36px; }
.eyebrow { margin: 0 0 10px; color: var(--jev); font-size: 12px; font-weight: 650; letter-spacing: 1.3px; }
h1, h2, h3 { line-height: 1.1; letter-spacing: -.035em; }
h1 { margin: 10px 0 20px; font-size: clamp(36px, 5vw, 62px); font-weight: 650; }
h2 { margin: 0; font-size: clamp(26px, 3vw, 36px); font-weight: 600; }
h3 { margin: 12px 0; font-size: 28px; font-weight: 600; }
.lead { max-width: 720px; color: var(--muted); font-size: 19px; }
.role-key { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 24px; color: var(--muted); font-size: 14px; }
.role-key span { display: inline-flex; align-items: center; gap: 8px; }
.role-key i { display: inline-block; width: 8px; height: 8px; border-radius: 50%; }
.role-key .llm { background: var(--llm); }
.role-key .jev { background: var(--jev); }
.role-key .result { background: var(--result); }
.section-heading { display: flex; align-items: end; justify-content: space-between; flex-wrap: wrap; gap: 20px; margin-bottom: 24px; }
.section-heading > a { font-size: 14px; }
.overview { padding-block: 24px 48px; border-bottom: 1px solid var(--border); }
figure { max-width: 1080px; margin: 0; }
.harness-video { display: block; width: 100%; height: auto; aspect-ratio: 1080 / 700; border-radius: 10px; background: var(--background); }
.player { min-width: 0; }
.playback-controls { display: grid; grid-template-columns: 66px minmax(0, 1fr) auto auto; align-items: center; gap: 12px; margin-top: 12px; }
.playback-controls button { min-height: 36px; padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px; background: var(--panel); color: var(--text); font: inherit; font-size: 13px; cursor: pointer; }
.playback-controls button:hover { border-color: var(--llm); }
.playback-controls button:focus-visible, .playback-controls input:focus-visible { outline: 2px solid var(--llm); outline-offset: 4px; }
.playback-controls input { width: 100%; margin: 0; accent-color: var(--jev); cursor: pointer; }
.playback-time { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.player:fullscreen { display: flex; flex-direction: column; justify-content: center; padding: 24px; background: var(--background); }
.player:fullscreen .harness-video { max-height: calc(100dvh - 108px); object-fit: contain; }
figcaption { margin-top: 16px; color: var(--muted); font-size: 14px; }
.cases { padding-top: 48px; }
.case { display: grid; grid-template-columns: minmax(0, 2.4fr) minmax(230px, 1fr); align-items: center; gap: 36px; padding-block: 36px; border-bottom: 1px solid var(--border); }
.case-copy p { color: var(--muted); font-size: 16px; }
.case-copy .eyebrow { color: var(--jev); font-size: 12px; }
.case-copy .scope { margin-block: 20px; font-size: 13px; }
.case-copy a { font-size: 14px; }
.evidence { max-width: 860px; padding-block: 52px; }
.evidence p:not(.eyebrow) { color: var(--muted); }
.evidence-links { margin-top: 24px; font-size: 14px; }
.page-footer { padding-block: 24px; border-top: 1px solid var(--border); color: var(--muted); font-size: 13px; }

@media (max-width: 800px) {
  .wrap { width: calc(100% - 32px); }
  .page-header { align-items: start; }
  nav { justify-content: end; gap: 8px 16px; max-width: 220px; font-size: 13px; }
  .intro { padding-block: 32px 24px; }
  .lead { font-size: 17px; }
  .case { grid-template-columns: minmax(0, 1fr); gap: 16px; padding-block: 28px; }
  .case-copy .scope { margin-block: 14px; }
  .overview { padding-bottom: 32px; }
  .cases { padding-top: 32px; }
  .evidence { padding-block: 36px; }
}