body{font:14px system-ui,sans-serif;max-width:720px;margin:2rem auto;padding:0 1rem}
input{width:100%;max-width:560px}
pre{white-space:pre-wrap;background:#f6f8fa;border:1px solid #e1e4e8;border-radius:6px;padding:10px}
.row{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap}
.muted{color:#6b7280;font-size:.85rem}

/* Dark mode */
body.dark{background:#111;color:#eee}
body.dark pre{background:#1e1e1e;border-color:#374151}
body.dark .muted{color:#9ca3af}