/* DedupCommando landing — CSS foundation.
   System fonts only; no external CDN, no web fonts, no trackers.
   RTL is handled via CSS logical properties (margin-inline, padding-inline, border-block-*). */

:root {
  --bg: #0f1115;
  --fg: #e6e8eb;
  --muted: #9aa3ad;
  --accent: #4aa3ff;
  --rule: rgba(127, 127, 127, 0.25);
  --maxw: 56rem;
  --pad: 1.25rem;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #ffffff; --fg: #1a1d21; --muted: #5a636d; --accent: #0b62c4; }
}

* { box-sizing: border-box; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Arabic", Arial, sans-serif;
  line-height: 1.6;
}
a { color: var(--accent); }

.skip-link {
  position: absolute;
  inset-inline-start: -9999px;
}
.skip-link:focus {
  inset-inline-start: var(--pad);
  inset-block-start: var(--pad);
  background: var(--accent);
  color: #fff;
  padding: .4rem .6rem;
  border-radius: .25rem;
}

.site-header,
.enonly-note,
.content,
.site-footer {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1rem;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
  border-block-end: 1px solid var(--rule);
}
.brand {
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--fg);
}

.lang-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .75rem;
  font-size: .9rem;
}
.lang-switcher a { text-decoration: none; }
.lang-switcher a[aria-current="page"] { font-weight: 700; text-decoration: underline; }

.enonly-note {
  padding-block: .5rem;
  color: var(--muted);
  font-size: .85rem;
}

.content {
  padding-block: 2rem;
  min-height: 50vh;
  text-align: start;
}
h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); line-height: 1.2; }

.site-footer {
  padding-block: 1.5rem;
  border-block-start: 1px solid var(--rule);
  color: var(--muted);
  font-size: .85rem;
}
.site-footer a { color: var(--accent); }
.trademarks { margin-block-start: .5rem; }

/* "Get it on GitHub" block at the end of every English page: the site exists to send people to the repo. */
.cta {
  margin-block-start: 2.5rem;
  padding: .9rem 1rem;
  border: 1px solid var(--rule);
  border-inline-start: 4px solid var(--accent);
  border-radius: .35rem;
}
.cta p { margin: 0; }

/* Documentation pages: manual chapters, safety and verification docs, release notes. */
.breadcrumbs, .source-note, .release-meta { color: var(--muted); font-size: .88rem; }
.breadcrumbs { margin-block-end: .5rem; }
.source-note { margin-block-start: 2rem; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace; font-size: .92em; }
:not(pre) > code { background: var(--rule); padding: .05rem .3rem; border-radius: .2rem; }
pre { overflow-x: auto; padding: .8rem 1rem; border: 1px solid var(--rule); border-radius: .35rem; line-height: 1.45; }
table { border-collapse: collapse; display: block; overflow-x: auto; margin-block: 1rem; font-size: .92rem; }
th, td { border: 1px solid var(--rule); padding: .35rem .6rem; text-align: start; vertical-align: top; }
blockquote { margin-inline: 0; padding-inline-start: 1rem; border-inline-start: 4px solid var(--rule); color: var(--muted); }
h2, h3 { line-height: 1.25; margin-block-start: 2rem; }

.manual { display: grid; gap: 2rem; }
.manual-nav ol, .toc ol { padding-inline-start: 1.4rem; margin: .25rem 0; }
.manual-nav a[aria-current="page"] { font-weight: 700; }
.manual-nav-title, .toc-title { font-weight: 700; margin: 0; }
.toc { border: 1px solid var(--rule); border-radius: .35rem; padding: .6rem 1rem; font-size: .92rem; }
.pager { display: flex; justify-content: space-between; gap: 1rem; margin-block-start: 2.5rem; }
.releases { list-style: none; padding: 0; }
.releases li { padding-block: .6rem; border-block-end: 1px solid var(--rule); }
.releases p { margin: .25rem 0 0; }
@media (min-width: 64rem) {
  :root { --maxw: 72rem; }
  .manual { grid-template-columns: 15rem minmax(0, 1fr); }
  .manual-nav { position: sticky; inset-block-start: 1rem; align-self: start; font-size: .9rem; }
}