:root{--bg:#f7f8fa;--surface:#fff;--text:#1a1d21;--text-weak:#5c6670;--border:#dfe3e8;--accent:#0f6b4f;--accent-contrast:#fff;--danger:#b3261e}@media (prefers-color-scheme:dark){:root{--bg:#121518;--surface:#1c2126;--text:#e8eaed;--text-weak:#9aa4ad;--border:#2c333a;--accent:#35b28a;--accent-contrast:#0c231a;--danger:#f2b8b5}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.5}h1{font-size:2rem;font-weight:700;line-height:1.2}h2{font-size:1.375rem;font-weight:600;line-height:1.3}.small{font-size:.8125rem;color:var(--text-weak)}.container{max-width:960px;margin:0 auto;padding:0 16px}header.site{border-bottom:1px solid var(--border);background:var(--surface)}header.site .container{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding-top:14px;padding-bottom:14px}header.site .brand{font-weight:700;font-size:1.125rem;margin-right:auto}header.site nav{display:flex;flex-wrap:wrap;gap:12px}header.site a{color:var(--text);text-decoration:none;font-size:.9375rem}header.site a:hover{color:var(--accent)}.hero{padding:48px 0 32px}.hero p{color:var(--text-weak);max-width:44rem;font-size:1.0625rem}.btn{display:inline-block;background:var(--accent);color:var(--accent-contrast);border:none;border-radius:8px;padding:10px 18px;font-size:.9375rem;font-weight:600;text-decoration:none;cursor:pointer}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:16px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));grid-gap:16px;gap:16px;align-items:start}label{display:block;font-size:.875rem;font-weight:600;margin-bottom:4px}input,select,textarea{width:100%;border:1px solid var(--border);border-radius:8px;padding:10px 12px;font-size:1rem;background:var(--surface);color:var(--text)}input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.row{display:flex;flex-wrap:wrap;gap:12px;align-items:end}.row>div{flex:1 1 200px}.error-box{border:1px solid var(--danger);border-radius:8px;padding:10px 14px;color:var(--danger)}.error-box,.ok-box{background:var(--surface);margin:12px 0;font-size:.9375rem}.ok-box{border:1px solid var(--accent);border-radius:8px;padding:14px}footer.site{border-top:1px solid var(--border);margin-top:48px;padding:20px 0;color:var(--text-weak);font-size:.8125rem}.num{font-feature-settings:"tnum";font-variant-numeric:tabular-nums}