/* Shared styling for Video Arena static content pages.
   Uses the design-system.css tokens; link both from each content page. Kept separate
   so content pages don't duplicate CSS. */
:root {
  color-scheme: light;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--wm-color-canvas, #f6f4ee);
  color: var(--wm-color-text, #090909);
  font-family: var(--wm-font-family-sans, Inter, system-ui, sans-serif);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap {
  max-width: 740px;
  margin: 0 auto;
  padding: 32px 20px 96px;
}
.topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 28px;
  border-bottom: 2px solid var(--wm-color-border, #111);
  margin-bottom: 40px;
}
.mark {
  width: 22px;
  height: 22px;
  background: var(--wm-color-accent, #164bff);
}
.topbar strong {
  letter-spacing: 3px;
  font-size: 15px;
}
.topbar a {
  margin-left: auto;
  color: var(--wm-color-text, #090909);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  border-bottom: 2px solid var(--wm-color-accent, #164bff);
}
.topbar a.wordmark {
  margin-left: 0;
  border-bottom: 0;
  color: var(--wm-color-text, #090909);
  font-size: 15px;
  letter-spacing: 3px;
}
nav.crumbs {
  font-size: 13px;
  color: var(--wm-color-text-muted, #5b5850);
  margin-bottom: 18px;
}
nav.crumbs a {
  color: var(--wm-color-text-muted, #5b5850);
}
h1 {
  font-size: 42px;
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin: 0 0 14px;
}
h2 {
  font-size: 26px;
  font-weight: 750;
  letter-spacing: -0.2px;
  margin: 48px 0 12px;
}
h3 {
  font-size: 19px;
  font-weight: 700;
  margin: 28px 0 6px;
}
.lede {
  font-size: 20px;
  color: var(--wm-color-text, #090909);
  margin: 0 0 8px;
}
.updated {
  margin: 8px 0 32px;
  color: var(--wm-color-text-muted, #5b5850);
  font-size: 14px;
}
.toc {
  margin: 32px 0 48px;
  padding: 20px 24px;
  border: 1px solid var(--wm-color-border-soft, rgba(17, 17, 17, 0.16));
  background: var(--wm-color-surface, #fffefa);
}
.toc ol {
  margin: 8px 0 0;
  padding-left: 22px;
}
.toc li {
  font-size: 15px;
}
section[id] {
  scroll-margin-top: 24px;
}
.formula {
  overflow-x: auto;
  padding: 16px 18px;
  background: var(--wm-color-canvas-muted, #ece8dc);
}
.post-list {
  display: grid;
  gap: 20px;
  margin: 36px 0 0;
  padding: 0;
  list-style: none;
}
.post {
  padding: 24px;
  border: 1px solid var(--wm-color-border-soft, rgba(17, 17, 17, 0.16));
  background: var(--wm-color-surface, #fffefa);
}
.post h2 {
  margin: 0 0 8px;
  font-size: 22px;
}
.post p {
  margin: 0;
  color: var(--wm-color-text-muted, #5b5850);
}
p,
li {
  font-size: 17px;
}
a {
  color: var(--wm-color-accent, #164bff);
}
strong {
  font-weight: 700;
}
blockquote {
  margin: 20px 0;
  padding: 4px 0 4px 20px;
  border-left: 3px solid var(--wm-color-accent, #164bff);
  color: var(--wm-color-text, #090909);
  font-style: italic;
}
blockquote cite {
  display: block;
  margin-top: 6px;
  font-style: normal;
  font-size: 14px;
  color: var(--wm-color-text-muted, #5b5850);
}
table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 15px;
}
th,
td {
  text-align: left;
  padding: 10px 12px;
  border: 1px solid var(--wm-color-border-soft, rgba(17, 17, 17, 0.16));
  vertical-align: top;
}
th {
  background: var(--wm-color-canvas-muted, #ece8dc);
  font-weight: 700;
}
.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 40px 0 0;
  padding: 24px;
  border: 2px solid var(--wm-color-border, #111);
  background: var(--wm-color-surface, #fffefa);
}
.cta a {
  display: inline-block;
  padding: 10px 18px;
  font-weight: 700;
  text-decoration: none;
}
.cta a.primary {
  background: var(--wm-color-accent, #164bff);
  color: #fff;
}
.cta a.ghost {
  border: 2px solid var(--wm-color-border, #111);
  color: var(--wm-color-text, #090909);
}
footer.page {
  margin-top: 64px;
  padding-top: 20px;
  border-top: 1px solid var(--wm-color-border-soft, rgba(17, 17, 17, 0.16));
  font-size: 14px;
  color: var(--wm-color-text-muted, #5b5850);
}
footer.page a {
  color: var(--wm-color-text-muted, #5b5850);
}
@media (max-width: 560px) {
  .wrap {
    padding-top: 22px;
  }
  .topbar {
    flex-wrap: wrap;
    margin-bottom: 30px;
  }
  .topbar > a:last-child {
    flex-basis: 100%;
    margin: 10px 0 0 32px;
    width: fit-content;
  }
  h1 {
    font-size: 34px;
  }
  h2 {
    font-size: 23px;
  }
  .lede {
    font-size: 18px;
  }
  table {
    display: block;
    overflow-x: auto;
  }
}