:root{--ink:#174E46;--ink2:#2f6b61;--bg:#f6f7f5;--card:#fff;--line:#dfe4e1;--muted:#6b7672;--key:#9A6A12;--warn:#a85b00;--bad:#b3261e;--ok:#2e7d4f}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:#1d2422;font:15px/1.6 "Pretendard","Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic",sans-serif}
a{color:var(--ink2)}
.top{display:flex;align-items:center;gap:20px;background:var(--ink);color:#fff;padding:10px 20px;flex-wrap:wrap}
.top a{color:#fff;text-decoration:none}
.brand{font-weight:700;font-size:17px}.brand small{opacity:.7;font-weight:400}
.top nav{display:flex;gap:16px;flex-wrap:wrap}.top nav a{opacity:.9}.top nav a:hover{opacity:1;text-decoration:underline}
.who{margin-left:auto;display:flex;gap:12px;align-items:center}
.who .link{color:#fff}
main{max-width:1240px;margin:0 auto;padding:18px 16px 40px}
footer{text-align:center;color:var(--muted);font-size:12px;padding:20px}
h1{font-size:22px;margin:6px 0 14px}h2{font-size:16px;margin:0 0 10px}h3{font-size:14px;margin:12px 0 6px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin-bottom:14px}
.card.narrow{max-width:460px;margin:30px auto}
.cardhead{display:flex;justify-content:space-between;align-items:baseline;gap:10px;flex-wrap:wrap}
.two{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:14px}
@media (max-width:900px){.two{grid-template-columns:1fr}}
.muted{color:var(--muted)}.small{font-size:13px}.big{font-size:18px}.nowrap{white-space:nowrap}.num{text-align:right}
.flash{background:#eef6f2;border:1px solid #bcd9cb;padding:8px 12px;border-radius:8px;margin-bottom:12px}
.err{background:#fdf0ef;border:1px solid #efc5c1;color:#7a1d16;padding:8px 12px;border-radius:8px;margin:8px 0}
.warnbox{background:#fff7e8;border:1px solid #f0d9a8;color:#6d4300;padding:8px 12px;border-radius:8px;margin:8px 0}
.card.ok{border-color:#bcd9cb}
.err ul,.warnbox ul{margin:4px 0 0 18px;padding:0}
.stack{display:flex;flex-direction:column;gap:10px}
.stack label,.card>form>label{display:flex;flex-direction:column;gap:4px;font-size:14px;margin-bottom:8px}
label.check{flex-direction:row!important;align-items:center;gap:6px}
input,select,textarea{font:inherit;padding:6px 8px;border:1px solid #c9d1cd;border-radius:6px;background:#fff}
button{font:inherit;padding:6px 12px;border:1px solid #b9c4bf;border-radius:6px;background:#fff;cursor:pointer}
button.primary{background:var(--ink);color:#fff;border-color:var(--ink)}
button.link{border:none;background:none;padding:0;color:var(--ink2);text-decoration:underline}
button.danger{color:var(--bad)}button:disabled{opacity:.6}
form.inline{display:inline}.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:8px 0}.right{text-align:right}
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.toolbar{position:sticky;top:0;background:var(--bg);padding:8px 0;display:flex;gap:12px;align-items:center;z-index:2}
table.grid{width:100%;border-collapse:collapse;background:#fff}
table.grid th,table.grid td{border-bottom:1px solid var(--line);padding:6px 8px;text-align:left;vertical-align:top}
table.grid th{font-size:13px;color:var(--muted);font-weight:600;background:#fafbfa}
.qlist .qsnip{color:inherit;text-decoration:none}.qlist .qsnip:hover{text-decoration:underline}
.stats{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.stat{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 18px;min-width:130px;text-decoration:none;color:inherit;display:flex;flex-direction:column}
.stat b{font-size:24px;color:var(--ink)}.stat span{color:var(--muted);font-size:13px}
.levels{display:flex;gap:10px;flex-wrap:wrap}.lv{display:flex;flex-direction:column;align-items:center;gap:2px;min-width:54px}
.lvtag{display:inline-block;padding:1px 7px;border-radius:10px;font-size:12px;font-weight:700;color:#fff;background:#888}
.lvtag.l1{background:#5b9a6e}.lvtag.l2{background:#4a8c87}.lvtag.l3{background:#3f7aa6}.lvtag.l4{background:#5a63b0}.lvtag.l5{background:#8a55a6}.lvtag.l6{background:#b0527a}.lvtag.l7{background:#b5463b}.lvtag.l0{background:#aab2ae}
.tag{display:inline-block;padding:0 6px;border-radius:4px;background:#eef1ef;font-size:12px;color:#44514c}
.tag.warn{background:#fff1d6;color:#7a4b00}
.st{display:inline-block;padding:1px 8px;border-radius:10px;font-size:12px;font-weight:600}
.st.need{background:#fff1d6;color:#7a4b00}.st.ok{background:#e3f2e9;color:#1f6b40}.st.none{background:#eef1ef;color:#5d6864}
.sec{color:var(--ink);font-weight:700}
h4.sec{margin:14px 0 6px;font-size:14px}
.qbody p{margin:4px 0}.qbody .part{padding-left:1.6em;text-indent:-1.6em}
ol.choices{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:6px 26px;margin:8px 0}
.bogi{border:1px solid #555;padding:10px 12px 6px;margin:12px 0 6px;position:relative}.bogi-t{position:absolute;top:-11px;left:50%;transform:translateX(-50%);background:#fff;padding:0 6px}
.bogi ul{list-style:none;margin:0;padding:0}
.fig{text-align:center;margin:10px 0}.fig img{height:auto;min-width:200px;max-width:100%}
.fig.placeholder{border:1px dashed #aaa;padding:10px;color:var(--muted);font-size:13px;text-align:left}
.dmath{margin:8px 0;text-align:center}
mark.cond{background:none;color:var(--key)}.cond{color:var(--key)}.cond b{font-weight:700}
.solution .ln{margin:2px 0}.eqlabel{margin-left:.6em}
.analysis .an{margin:6px 0 10px}.analysis .thought{padding-left:1.2em;text-indent:-1.2em}
.step{margin:14px 0 4px}.steplabel{background:var(--ink);color:#fff;font-size:12px;padding:1px 7px;border-radius:3px;font-weight:700}
.recall{background:#f4f7f6;border:1px solid #b9cfc9;border-radius:6px;padding:6px 10px;margin:4px 0 8px;font-size:14px}
.caution{background:#fbf1ee;border:1px solid #e2b7aa;border-radius:6px;padding:8px 12px;margin:12px 0}
table.sol-table{border-collapse:collapse;margin:8px auto}table.sol-table td,table.sol-table th{border:1px solid #999;padding:4px 10px;text-align:center}
ol.hints{margin:4px 0 4px 18px;padding:0}
details{margin:8px 0}summary{cursor:pointer;color:var(--ink2)}
dl.kv{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;margin:0}dl.kv dt{color:var(--muted)}dl.kv dd{margin:0}
.assess{border-top:1px solid var(--line);padding:6px 0}.axes{width:auto}
.pitem{display:flex;gap:12px;border-top:1px solid var(--line);padding:10px 0}.pnum{font-weight:700;font-size:18px;color:var(--ink);min-width:28px}.pbody{flex:1;min-width:0}
pre{white-space:pre-wrap;word-break:break-all;background:#f7f8f7;padding:8px;border-radius:6px;max-height:420px;overflow:auto}
.bad{color:var(--bad)}
code{background:#f0f2f1;padding:0 4px;border-radius:3px;font-size:12px}
@media print{.top,footer,.toolbar,form{display:none}}
.qlist td:nth-child(4),.qlist td:nth-child(5),.qlist td:nth-child(6){white-space:nowrap}
textarea.code{font-family:ui-monospace,Consolas,monospace;font-size:13px;line-height:1.45;width:100%}

/* 0.10 쌍둥이 자료: 원본 자료 바로 뒤, 들여 쓰고 왼쪽 줄로 묶어 보이게 */
.db-twin-source { margin-left: 18px; border-left: 3px solid var(--accent, #c27a2c); }
.db-list-mode .db-twin-source { margin-left: 24px; }
pre.tex { white-space: pre-wrap; word-break: break-word; background: #f6f7f6; padding: 8px; border-radius: 4px; max-height: 320px; overflow: auto; }

/* 0.11.0 교과외 유형(직접 표시) — '교과외 유형도 보기'를 켰을 때만 보임 */
.scope-node.offcurr .scope-name{color:#8a8f9c}.offcurr-tag{font-size:11px;border:1px solid #c9ccd6;border-radius:4px;padding:0 4px;margin-left:4px;color:#8a5a12;background:#fff8ea}