:root{color-scheme:light}*{box-sizing:border-box}html,body{margin:0;padding:0;background:#fff;color:#222;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}header{text-align:center;padding:32px 16px 16px}header img{max-width:100%;height:auto;display:block;margin:0 auto 16px}header h1{margin:0;font-size:2rem;color:#222}main{max-width:720px;margin:0 auto;padding:0 16px 64px}main p{margin:16px 0;font-size:1.05rem}form{display:flex;flex-direction:column;gap:12px;margin-top:32px;padding:24px;border:1px solid #ddd;border-radius:8px;background:#fafafa}form label{display:flex;flex-direction:column;font-size:.9rem;color:#444;gap:4px}form input,form textarea{width:100%;padding:8px 10px;font-size:1rem;border:1px solid #ccc;border-radius:4px;background:#fff;color:#222;font-family:inherit}form textarea{min-height:100px;resize:vertical}form button{align-self:flex-start;padding:10px 18px;font-size:1rem;border:1px solid #ccc;border-radius:4px;background:#eee;color:#666;cursor:not-allowed}