:root{--bg:#f6f8fb;--card:#fff;--text:#1c2430;--muted:#61758a;--accent:#1178f2;--danger:#b42318}*{box-sizing:border-box}body{margin:0;font-family:IBM Plex Sans,Segoe UI,sans-serif;background:radial-gradient(circle at top right,#ddebff,var(--bg));color:var(--text)}main{max-width:1120px;margin:24px auto}.card,main{padding:16px}.card{background:var(--card);border-radius:12px;margin-bottom:16px;box-shadow:0 10px 25px rgba(16,24,40,.08)}.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}button,input,select,textarea{padding:8px 10px;border-radius:8px;border:1px solid #d3dae4}button{background:var(--accent);color:#fff;border:none;cursor:pointer}button.secondary{background:#eef4ff;color:var(--accent)}button.danger{background:var(--danger)}small{color:var(--muted)}pre{white-space:pre-wrap;word-break:break-word}