:root {
  --navy: #173b68;
  --blue: #0b5fa5;
  --blue-soft: #dceeff;
  --orange: #c85b1b;
  --ink: #18212b;
  --muted: #5f6d79;
  --line: #cbd6df;
  --canvas: #eef4f8;
  --panel: #fff;
}
* { box-sizing: border-box; }
html { background: var(--canvas); }
body { margin: 0; min-width: 340px; color: var(--ink); background: linear-gradient(135deg, #f8fbfd, #e9f2f7); font: 16px/1.5 "Segoe UI", Tahoma, Arial, sans-serif; }
a { color: #075994; }
code { padding: .08rem .25rem; color: #0b426c; background: #eaf2f7; overflow-wrap: anywhere; }
pre { max-width: 100%; padding: 12px; overflow: auto; border: 1px solid var(--line); background: #f5f8fa; white-space: pre-wrap; }
.site-shell { display: grid; grid-template-columns: 230px minmax(0, 1fr); min-height: 100vh; }
.sidebar { position: sticky; top: 0; align-self: start; width: 230px; height: 100vh; padding: 12px 8px; color: #fff; background: var(--navy); transition: width 150ms ease; }
.sidebar.collapsed { width: 58px; }
.site-shell:has(.sidebar.collapsed) { grid-template-columns: 58px minmax(0, 1fr); }
.sidebar button, .sidebar a { display: flex; align-items: center; gap: 7px; width: 100%; min-height: 42px; margin-bottom: 4px; padding: 8px 10px; border: 1px solid transparent; border-radius: 5px; color: #fff; background: transparent; text-align: left; text-decoration: none; cursor: pointer; }
.sidebar button:hover, .sidebar a:hover, .sidebar a:focus-visible { border-color: #8fd0ff; background: rgba(255, 255, 255, .1); }
.sidebar a.active { border-color: #ffd08d; background: var(--blue); font-weight: 700; }
.sidebar.collapsed .nav-label, .sidebar.collapsed nav { display: none; }
.sidebar.collapsed button { justify-content: center; }
main { min-width: 0; padding: 18px 24px 28px; }
.hero, .content, footer { width: min(1220px, 100%); }
.hero { display: flex; align-items: center; gap: 16px; padding: 16px 18px; border: 1px solid #b9d2e5; border-radius: 12px; background: rgba(255, 255, 255, .96); box-shadow: 0 8px 26px rgba(23, 59, 104, .1); }
.hero h1 { margin: 0; color: var(--navy); font-size: clamp(1.7rem, 4vw, 2.5rem); }
.hero p { margin: 2px 0; color: var(--muted); }
.hero .eyebrow { color: var(--orange); font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.content { margin-top: 14px; padding: 18px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); box-shadow: 0 8px 26px rgba(23, 59, 104, .08); }
.content h2 { margin: 1.25rem 0 .35rem; color: var(--navy); }
.content h2:first-child { margin-top: 0; }
.content p { max-width: 92ch; }
.notice, .warning { padding: 10px 12px; border-left: 5px solid var(--orange); background: #fff7e8; }
.card-grid, .download-grid, .parameter-list, .faq { display: grid; grid-template-columns: repeat(auto-fit, minmax(275px, 1fr)); gap: 10px; }
.card-grid article, .download-card, .parameter-list article, .faq article { padding: 10px 12px; border: 1px solid var(--line); border-radius: 7px; background: #f8fbfd; }
.card-grid h2, .download-card h3, .parameter-list h2, .faq h2 { margin: 0 0 5px; color: var(--navy); font-size: 1.05rem; }
.card-grid p, .download-card p, .parameter-list p, .faq p { margin: 0; }
.download-button { display: inline-block; margin: 8px 0; padding: 7px 10px; border-radius: 5px; color: #fff; background: var(--blue); font-weight: 700; text-decoration: none; }
.download-button:hover { background: var(--navy); }
.hash { font-size: .73rem; overflow-wrap: anywhere; }
.parameter-list article.warning { border-left: 5px solid var(--orange); background: #fff7e8; }
address { font-style: normal; }
.version-history { display: block; }
.version-entry { margin: 0 0 .65rem; padding: .6rem .75rem; border-left: 3px solid var(--blue); background: #f5f8fa; }
footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; padding: 14px 2px 0; color: var(--muted); font-size: .78rem; }
@media (max-width: 760px) {
  body { min-width: 0; }
  .site-shell, .site-shell:has(.sidebar.collapsed) { display: block; min-width: 0; padding-left: 58px; }
  .sidebar { position: fixed; left: 0; top: 0; width: min(230px, calc(100vw - 24px)); z-index: 6; box-shadow: 7px 0 18px rgba(13, 43, 76, .2); }
  .sidebar.collapsed { width: 58px; }
  main { width: 100%; min-width: 0; padding: 10px; }
  .hero { align-items: flex-start; flex-wrap: wrap; }
  .hero img { width: 58px; height: 58px; }
  .content { padding: 12px; }
  .card-grid, .download-grid, .parameter-list, .faq { grid-template-columns: minmax(0, 1fr); }
}