:root{color-scheme:light;--navy:#073a77;--muted:#657287;--line:#d7e0eb;--bg:#f5f8fc}
    *{box-sizing:border-box}body{margin:0;background:var(--bg);color:#182334;font:16px/1.55 Arial,sans-serif}
    main{max-width:940px;margin:32px auto;padding:38px 48px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 8px 30px #173a6b14}
    h1{margin:0 0 6px;color:var(--navy);font-size:32px;line-height:1.2}.meta{margin:0 0 28px;color:var(--muted)}
    pre{margin:0;white-space:pre-wrap;overflow-wrap:anywhere;font:inherit}footer{margin-top:30px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted)}
    a{color:var(--navy)}.error{color:#a52f37;font-weight:700}@media(max-width:700px){main{margin:0;padding:24px 18px;border:0;border-radius:0}h1{font-size:26px}}