:root{color-scheme:dark;--bg: #0d1117;--card: #161b22;--border: #30363d;--text: #e6edf3;--muted: #8b949e;--accent: #2f81f7;--pass: #2ea043;--fail: #f85149}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.55 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;display:flex;justify-content:center;padding:40px 16px}#root{width:100%;max-width:760px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:28px 32px}.card.wide{max-width:760px}h1{font-size:22px;margin:0 0 14px}h2{font-size:15px;margin:0 0 8px}p{color:var(--text)}.notice{background:#2f81f714;border:1px solid rgba(47,129,247,.3);border-radius:8px;padding:14px 18px;margin:18px 0}.notice ul{margin:0 0 10px;padding-left:18px;color:var(--muted)}.dev-banner{font-size:12px;color:#d29922}button{font:inherit;border-radius:8px;padding:9px 18px;cursor:pointer;border:1px solid var(--border)}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.secondary{background:transparent;color:var(--text)}button:disabled{opacity:.45;cursor:not-allowed}.actions{display:flex;gap:12px;margin-top:16px}.error{color:var(--fail);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px}table.results{width:100%;margin-top:18px;border-collapse:collapse;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px}table.results th,table.results td{text-align:left;padding:6px 10px;border-bottom:1px solid var(--border)}table.results tr.pass td:last-child{color:var(--pass)}table.results tr.fail td:last-child{color:var(--fail)}