:root {
  --ink: #0a1633; --ink2: #4a5470; --line: #d5dae6; --bg: #f4f6fb; --card: #fff;
  --blue: #213a6e; --blue2: #3355c8; --green: #1b7f4b; --amber: #b26a00; --red: #b3261e;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 Pretendard, "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif; }
main { max-width: 1080px; margin: 0 auto; padding: 16px; }
header.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 16px; background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 2; }
header.top h1 { font-size: 17px; margin: 0; }
header.top .tag { font-size: 12px; color: var(--ink2); }
.hidden { display: none !important; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px; margin-bottom: 14px; }
h2 { font-size: 18px; margin: 0 0 10px; }
h3 { font-size: 15px; margin: 0 0 8px; color: var(--ink2); font-weight: 600; }
label { display: block; font-size: 14px; font-weight: 600; margin: 10px 0 4px; }
input, textarea, select { width: 100%; font: inherit; padding: 11px 12px; border: 1.5px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); }
input:focus, textarea:focus { outline: 2px solid var(--blue2); border-color: var(--blue2); }
button { font: inherit; font-weight: 700; padding: 12px 18px; border-radius: 999px; border: 0; background: var(--ink); color: #fff; cursor: pointer; min-height: 44px; }
button.secondary { background: #fff; color: var(--ink); border: 1.5px solid var(--ink); }
button.small { padding: 6px 12px; min-height: 36px; font-size: 14px; }
button:disabled { opacity: .45; cursor: default; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.msg { padding: 10px 12px; border-radius: 10px; font-size: 14px; margin-top: 10px; }
.msg.error { background: #fde8e6; color: var(--red); }
.msg.info { background: #e8eefb; color: var(--blue); }
.msg.warn { background: #fff3e0; color: var(--amber); }
.qlist { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
.q { text-align: left; background: #fff; border: 1.5px solid var(--line); border-radius: 12px; padding: 12px; cursor: pointer; color: var(--ink); font-weight: 500; min-height: 44px; }
.q:hover { border-color: var(--blue2); }
.q .ctx { display: block; font-size: 13px; color: var(--ink2); margin: 2px 0 4px; font-weight: 400; }
.q .cat { display: inline-block; font-size: 11px; color: var(--blue); background: #e8eefb; border-radius: 6px; padding: 1px 6px; margin-bottom: 6px; }
.q.active { border-color: var(--blue2); box-shadow: 0 0 0 2px #c9d4f5 inset; }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 720px) { .compare { grid-template-columns: 1fr; } main { padding: 10px; } }
.side { border: 1.5px solid var(--line); border-radius: 12px; padding: 14px; background: #fff; }
.side.left { border-top: 4px solid var(--blue2); } .side.right { border-top: 4px solid var(--green); }
.side h3 { color: var(--ink); font-size: 15px; display: flex; justify-content: space-between; }
.side .model { font-size: 12px; color: var(--ink2); font-weight: 500; }
.answer { font-size: 18px; font-weight: 800; margin: 6px 0; }
.answer.none { color: var(--ink2); font-weight: 500; }
.expl { font-size: 14px; color: var(--ink2); white-space: pre-wrap; }
.meta { display: flex; gap: 14px; font-size: 12px; color: var(--ink2); margin-top: 10px; flex-wrap: wrap; }
.bar { display: grid; grid-template-columns: 1fr auto; gap: 6px 10px; font-size: 13px; margin-top: 6px; }
.bar .track { grid-column: 1 / -1; height: 8px; background: var(--bg); border-radius: 4px; overflow: hidden; }
.bar .fill { height: 100%; background: var(--green); }
.verdict { margin-top: 10px; padding: 8px 10px; border-radius: 8px; font-weight: 700; font-size: 14px; }
.verdict.auto { background: #e6f4ec; color: var(--green); }
.verdict.review { background: #fff3e0; color: var(--amber); }
.slider { display: flex; gap: 12px; align-items: center; }
.slider input[type=range] { flex: 1; padding: 0; }
.slider output { font-weight: 800; min-width: 48px; text-align: right; }
.counts { display: flex; gap: 10px; margin-top: 8px; }
.counts div { flex: 1; border-radius: 10px; padding: 10px; text-align: center; }
.counts .a { background: #e6f4ec; color: var(--green); } .counts .r { background: #fff3e0; color: var(--amber); }
.counts strong { display: block; font-size: 24px; }
.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid var(--line); border-top-color: var(--blue2); border-radius: 50%; animation: spin .8s linear infinite; vertical-align: -2px; margin-right: 6px; }
@keyframes spin { to { transform: rotate(360deg); } }
footer { font-size: 12px; color: var(--ink2); padding: 20px 16px 30px; text-align: center; line-height: 1.7; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { border-bottom: 1px solid var(--line); padding: 7px 8px; text-align: left; }
th { background: var(--bg); font-weight: 600; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
.kpi { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.kpi div { background: var(--bg); border-radius: 10px; padding: 10px 12px; }
.kpi strong { display: block; font-size: 24px; }
.kpi small { color: var(--ink2); }
.ok { color: var(--green); } .bad { color: var(--red); }
.opt-row { display: flex; gap: 8px; align-items: center; margin-top: 6px; }
.opt-row input { flex: 1; }