:root{color-scheme:light}*{box-sizing:border-box}body,html{margin:0;padding:0;font-family:Arial,sans-serif;background:#f6f8fb;color:#202124}a{color:inherit;text-decoration:none}main{max-width:960px;margin:0 auto;padding:24px}.card{background:#fff;border:1px solid #dde1e6;border-radius:10px;padding:16px}.row{display:flex;gap:12px;align-items:center}.button{border:none;background:#1a73e8;color:#fff;padding:10px 14px;border-radius:8px;cursor:pointer}.button.secondary{background:#5f6368}