:root{--bg: #f5f7fa;--panel: #ffffff;--text: #1a2332;--muted: #5f6d7e;--ok: #16a34a;--bad: #dc2626;--warn: #ca8a04;--border: #d5dce6;--accent: #2563eb;--th-bg: #edf0f4}*{box-sizing:border-box}body{margin:0;padding:24px;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}a{color:var(--accent)}.panel{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:12px 14px;margin:10px 0}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,monospace}button{background:var(--accent);color:#fff;border:none;border-radius:6px;padding:8px 18px;font-size:13px;font-weight:600;cursor:pointer}button:disabled{opacity:.45;cursor:default}