:root{--bg:#f6f7f9;--card:#fff;--fg:#1d2330;--mut:#6b7280;--pri:#2563eb;--ok:#15803d;--bad:#b91c1c;--bd:#e3e6ec}
@media(prefers-color-scheme:dark){:root{--bg:#12151c;--card:#1a1f2b;--fg:#e6e9f0;--mut:#98a2b3;--pri:#6ea0ff;--ok:#4ade80;--bad:#f87171;--bd:#2b3242}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.55 -apple-system,"Apple SD Gothic Neo","Malgun Gothic",sans-serif}
header{display:flex;justify-content:space-between;align-items:center;padding:12px 24px;background:var(--card);border-bottom:1px solid var(--bd)}
header b{font-size:17px;cursor:pointer}
main{max-width:1100px;margin:24px auto;padding:0 16px}
.card{background:var(--card);border:1px solid var(--bd);border-radius:10px;padding:18px;margin-bottom:16px}
h2{margin:0 0 12px;font-size:20px}h3{margin:16px 0 8px;font-size:16px}
button,.btn{background:var(--pri);color:#fff;border:0;border-radius:6px;padding:8px 14px;font:inherit;cursor:pointer}
button.sec{background:transparent;color:var(--fg);border:1px solid var(--bd)}
button.bad{background:var(--bad)}button:disabled{opacity:.5;cursor:wait}
input,textarea,select{width:100%;padding:8px 10px;border:1px solid var(--bd);border-radius:6px;background:var(--bg);color:var(--fg);font:inherit}
label{display:block;margin:10px 0 4px;color:var(--mut);font-size:13px}
table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:8px;border-bottom:1px solid var(--bd);vertical-align:top}
th{color:var(--mut);font-weight:500;font-size:13px}
tr.link{cursor:pointer}tr.link:hover{background:var(--bg)}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.grow{flex:1}
.split{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media(max-width:800px){.split{grid-template-columns:1fr}}
.desc{white-space:pre-wrap;user-select:none;-webkit-user-select:none}
.code{font:13px/1.5 ui-monospace,Menlo,Consolas,monospace;tab-size:4;white-space:pre;min-height:380px;resize:vertical;overflow:auto}
pre.out{background:#0d1117;color:#d1d7e0;padding:12px;border-radius:6px;white-space:pre-wrap;word-break:break-all;min-height:60px;max-height:320px;overflow:auto;margin:6px 0;font:13px/1.5 ui-monospace,Menlo,monospace}
.tag{display:inline-block;padding:1px 8px;border-radius:10px;font-size:12px;border:1px solid var(--bd)}
.ok{color:var(--ok)}.bad{color:var(--bad)}.mut{color:var(--mut)}
.warn{background:#fef3c7;color:#92400e;border-radius:6px;padding:6px 10px;font-size:13px}
.score{font-size:28px;font-weight:700}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#111;color:#fff;padding:10px 18px;border-radius:8px;z-index:9}
.testrow{display:grid;grid-template-columns:1fr 1fr auto auto;gap:8px;margin-bottom:6px;align-items:start}
.tag.warnt{color:#b45309;border-color:#f59e0b}