/* Steel OS Help: shared style, matching steel-os.org. Works offline. */
:root { --bg:#14171C; --raised:#1C2026; --line:#2B3138; --fg:#E8ECF1; --muted:#A9B3BF; --blue:#4A90D9; --orange:#F2641E; color-scheme: dark; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 "Saira", "Noto Sans", system-ui, sans-serif; }
.wrap { max-width: 860px; margin: 0 auto; padding: 28px max(16px, env(safe-area-inset-left, 0px)) 64px; }
a { color: var(--blue); }
.top { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; border-bottom: 1px solid var(--line); padding-bottom: 14px; margin-bottom: 8px; }
.brand { font-weight: 700; letter-spacing: .04em; color: var(--fg); text-decoration: none; }
.brand .os { color: var(--orange); }
.top nav { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: .95rem; }
h1 { font-size: clamp(1.7rem, 4.5vw, 2.3rem); line-height: 1.15; margin: 24px 0 6px; }
h2 { font-size: 1.3rem; margin: 32px 0 6px; }
h2::before { content: ""; display: inline-block; width: 9px; height: 9px; background: var(--orange); margin-right: 10px; transform: rotate(45deg); vertical-align: middle; }
p, li { max-width: 70ch; }
li { margin: 6px 0; }
.lede { color: var(--muted); }
kbd { background: var(--raised); border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; padding: 0 6px; font-size: .9em; white-space: nowrap; }
code { background: var(--raised); border: 1px solid var(--line); border-radius: 5px; padding: 1px 6px; font-size: .9em; }
pre { background: var(--raised); border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px; overflow-x: auto; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 12px; margin-top: 16px; }
.card { display: block; background: var(--raised); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; color: var(--fg); text-decoration: none; }
.card:hover { border-color: var(--blue); }
.card b { display: block; color: var(--fg); margin-bottom: 4px; }
.card span { color: var(--muted); font-size: .95rem; }
.note { background: var(--raised); border-left: 3px solid var(--orange); border-radius: 6px; padding: 10px 14px; }
.tbl { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 8px 10px; border-top: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-size: .85rem; text-transform: uppercase; letter-spacing: .05em; border-top: 0; }
footer { margin-top: 48px; border-top: 1px solid var(--line); padding-top: 14px; color: var(--muted); font-size: .9rem; }