:root{color-scheme:dark;font-family:system-ui,sans-serif;color:#e2e8f0;background:#0f172a}body{margin:0}main{max-width:760px;margin:10vh auto;padding:32px}h1{font-size:clamp(2rem,6vw,3.5rem);margin:12px 0}p{line-height:1.7}.badge{color:#5eead4;letter-spacing:.12em;font-size:.8rem}section{margin-top:32px;padding:24px;border:1px solid #334155;border-radius:16px;background:#172033}button{background:#5eead4;color:#0f172a;padding:12px 18px;border:0;border-radius:8px;font:inherit;cursor:pointer}button:disabled{opacity:.6;cursor:wait}button:focus-visible{outline:3px solid white;outline-offset:4px}label{display:block;margin:16px 0}input,select{display:block;box-sizing:border-box;width:100%;margin-top:8px;padding:12px;color:#e2e8f0;background:#0f172a;border:1px solid #64748b;border-radius:8px;font:inherit}[role=alert]{color:#fda4af}