body{font:16px system-ui;background:#f3f5f8;color:#19273a;margin:0}header{background:#152b43;color:white;padding:24px 5%}main{max-width:1150px;margin:30px auto;padding:0 20px}input,select,textarea,button{font:inherit;padding:10px;margin:5px;border:1px solid #bbc6d1;border-radius:6px}button{background:#176a66;color:white;cursor:pointer}button:disabled{background:#718092;cursor:default}textarea{display:block;width:90%;font:14px monospace}.card{background:white;padding:16px;margin:10px 0;border-radius:8px;border:1px solid #dde3e9}.meta{color:#536477;font-size:14px}pre{white-space:pre-wrap;overflow-wrap:anywhere}#message{color:#a43016}h2{margin-top:30px}