*{box-sizing:border-box}body{margin:0;font-family:system-ui,sans-serif;background:#fafafa;color:#222}header{display:flex;gap:16px;align-items:center;padding:12px 24px;background:#fff;border-bottom:1px solid #eee}header a{color:#222;text-decoration:none}main{max-width:900px;margin:24px auto;padding:0 16px}.card{background:#fff;border:1px solid #eee;border-radius:12px;padding:16px;margin-bottom:12px}input,textarea,select{width:100%;padding:10px;border:1px solid #ddd;border-radius:8px;margin:6px 0}button{padding:10px 16px;border:0;border-radius:8px;background:#111;color:#fff;cursor:pointer}
