:root{--bg: #f6f7f9;--surface: #ffffff;--border: #dfe3e8;--text: #17191c;--muted: #666d78;--accent: #2f5bd8;--accent-text: #ffffff;--error-bg: #fdeceb;--error-text: #a8231b;--ok-bg: #e9f6ed;--ok-text: #1d6b37;color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--bg: #101216;--surface: #1a1d23;--border: #2c313a;--text: #e8eaed;--muted: #9aa2ad;--accent: #6f93f0;--accent-text: #0d1016;--error-bg: #3a1c1a;--error-text: #f2a8a2;--ok-bg: #16301f;--ok-text: #8fd3a5}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.page{max-width:40rem;margin:0 auto;padding:2.5rem 1.25rem 4rem;display:grid;gap:1.5rem}.masthead h1{margin:0 0 .25rem;font-size:2rem;letter-spacing:-.02em}.masthead p{margin:0;color:var(--muted)}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1.5rem;display:grid;gap:.5rem}.card h2{margin:0 0 .5rem;font-size:1.05rem}label{font-size:.875rem;font-weight:600}input,textarea{font:inherit;color:inherit;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:.6rem .7rem;width:100%;resize:vertical}input:focus-visible,textarea:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}button{margin-top:.75rem;font:inherit;font-weight:600;background:var(--accent);color:var(--accent-text);border:0;border-radius:8px;padding:.7rem 1rem;cursor:pointer}button:disabled{opacity:.6;cursor:progress}.notice{margin:.25rem 0 0;padding:.6rem .75rem;border-radius:8px;font-size:.9rem}.notice--error{background:var(--error-bg);color:var(--error-text)}.notice--ok{background:var(--ok-bg);color:var(--ok-text)}.muted{margin:0;color:var(--muted)}.messages{list-style:none;margin:0;padding:0;display:grid;gap:1rem}.messages li{border-top:1px solid var(--border);padding-top:1rem}.messages li:first-child{border-top:0;padding-top:0}.messages__meta{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin:0 0 .25rem;font-size:.8rem;color:var(--muted)}.messages__body{margin:0;overflow-wrap:anywhere;white-space:pre-wrap}