:root{color-scheme:light dark;font-family:system-ui,-apple-system,sans-serif;background:#f7f9fc;color:#091727}body{margin:0}main{max-width:720px;margin:14vh auto;padding:32px}.logo{display:block;width:260px;max-width:85%;height:auto}h1{font-size:clamp(24px,5vw,38px);margin-top:40px;line-height:1.4}p{font-size:17px;line-height:1.8}.muted{color:#687588}a{color:#3c5cff}@media(prefers-color-scheme:dark){:root{background:#101216;color:#f3f6fc}.logo{background:#fff;border-radius:16px;padding:16px}.muted{color:#a2adbc}}