* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); text-underline-offset: .2em; }
a:hover { text-decoration: underline; }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.site-header { max-width: 1400px; margin: auto; padding: 24px 32px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--border); }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; color: var(--text); text-decoration: none; white-space: nowrap; }
.site-header nav { display: flex; flex-wrap: wrap; gap: 24px; }
.site-header nav a { text-decoration: none; }
.layout { max-width: 1400px; margin: auto; display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 48px; padding: 40px 32px 64px; }
.layout.landing { display: block; max-width: 1120px; }
main { min-width: 0; max-width: 900px; }
.landing main { max-width: none; }
.sidebar nav { display: flex; flex-direction: column; gap: 12px; margin-top: 16px; }
.sidebar summary { font-weight: 600; cursor: pointer; }
.sidebar a { font-size: 14px; text-decoration: none; color: var(--text-muted); }
.sidebar a:hover, .sidebar a[aria-current] { color: var(--accent); }
.source-link { font-size: 13px; margin: 0 0 24px; }
h1, h2, h3 { line-height: 1.25; color: var(--text); scroll-margin-top: 24px; }
h1 { font-size: 2.4rem; letter-spacing: -.035em; }
h2 { margin-top: 2em; font-size: 1.5rem; }
pre { overflow: auto; background: var(--bg-panel); padding: 20px; border: 1px solid var(--border); border-radius: var(--radius-lg); }
code { font-family: var(--mono); font-size: .85em; }
:not(pre) > code { background: var(--bg-panel); padding: 2px 5px; border-radius: var(--radius-sm); overflow-wrap: anywhere; }
table { display: block; overflow-x: auto; border-collapse: collapse; max-width: 100%; }
th, td { padding: 10px 14px; border: 1px solid var(--border); text-align: left; }
th { background: var(--bg-panel); }
img, svg { max-width: 100%; height: auto; }
blockquote { margin-left: 0; border-left: 3px solid var(--accent); padding-left: 20px; color: var(--text-muted); }
.hero { padding: 48px 0 56px; max-width: 800px; }
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); margin: 20px 0 24px; }
.hero > p:not(.eyebrow):not(.release-note) { max-width: 620px; font-size: 1.15rem; }
.eyebrow { color: var(--accent); font-size: .9rem; }
.hero .btn { text-decoration: none; margin: 8px 8px 8px 0; min-height: 44px; }
.release-note { color: var(--text-muted); font-size: .85rem; max-width: 580px; }
.app-screenshot { margin: 0 0 48px; }
.app-screenshot img { display: block; width: 100%; border: 1px solid var(--border); border-radius: var(--radius-lg); }
.app-screenshot figcaption { margin-top: 12px; color: var(--text-muted); font-size: .85rem; }
.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 28px 0; }
.features h2 { font-size: 1.2rem; margin-top: 0; }
.features p { color: var(--text-muted); margin-bottom: 0; }
footer { border-top: 1px solid var(--border); padding: 24px 32px; text-align: center; font-size: 13px; color: var(--text-muted); }
.skip-link { position: absolute; left: 16px; top: -100px; background: var(--bg-panel); padding: 12px; z-index: 10; }
.skip-link:focus { top: 12px; }
@media (max-width: 800px) {
  .site-header { padding: 20px; flex-wrap: wrap; }
  .site-header nav { gap: 20px; }
  .layout { display: block; padding: 24px 20px 48px; }
  .sidebar { margin-bottom: 32px; }
  .features { grid-template-columns: 1fr; }
  .hero { padding-top: 20px; }
}