body{font-family:system-ui,sans-serif;background:#f7f8fa;margin:0;padding:0}h1{color:#2c3e50}input,select,button{margin-right:8px;padding:4px 8px;font-size:1rem}button{background:#0070f3;color:#fff;border:none;border-radius:4px;cursor:pointer}button:hover{background:#005bb5}