:root{
  --fg:#111; --bg:#fff; --muted:#6b7280; --border:#e5e7eb; --code:#f6f8fa; --link:#0b5fff;
}
*{box-sizing:border-box}
body{margin:0;font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--fg);background:var(--bg)}
.container{max-width:860px;margin:0 auto;padding:24px}

.site-header{border-bottom:1px solid var(--border);background:#fafafa}
.site-header h1{margin:0 0 4px;font-size:20px}
.tagline{margin:0;color:var(--muted);font-size:14px}
.top-nav{margin-top:10px;display:flex;gap:12px;flex-wrap:wrap}
.top-nav a{color:var(--link);text-decoration:none;padding:4px 6px;border-radius:6px}
.top-nav a:hover{background:#f3f4f6}

h2{margin:28px 0 10px;font-size:18px;border-bottom:1px solid var(--border);padding-bottom:6px}
p{margin:0 0 10px}
.muted{color:var(--muted)}
ul,ol{margin:8px 0 16px 20px}

code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;background:var(--code);padding:2px 4px;border-radius:4px}
pre{background:var(--code);padding:10px;border:1px solid var(--border);border-radius:6px;overflow:auto}

.cmds{width:100%;border-collapse:collapse;margin-top:8px}
.cmds th,.cmds td{border:1px solid var(--border);padding:8px;vertical-align:top;text-align:left}
.cmds th{background:#f8fafc}

.site-footer{border-top:1px solid var(--border);background:#fafafa;margin-top:24px}
.site-footer p{margin:0}