/* 학생사이트 디자인 기준은 DESIGN.md. 흑백이 기본이고, 색은 ‘조치가 필요한 상태’에만 쓴다. */
@font-face{font-family:Pretendard;src:url(PretendardVariable.woff2) format("woff2");font-weight:45 920;font-display:swap}
:root{--ground:#f6f6f4;--surface:#fff;--raised:#ececea;--border:#e4e4e1;--rule:#efefed;--control:#c9c9c5;--text:#0d0d0d;--muted:#63635f;
  --ink:#111;--bad:#a81e22;--bad-soft:#fbecea;--radius-card:8px;--radius-control:6px}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ground);color:var(--text);font:400 15px/1.6 Pretendard,"Malgun Gothic",sans-serif;word-break:keep-all;overflow-wrap:anywhere}
a{color:var(--text);text-underline-offset:3px}
h1{font-size:24px;line-height:1.35;margin:0;font-weight:700;letter-spacing:-.02em}h2{font-size:16px;margin:0 0 10px;font-weight:700}
p{margin:0 0 8px}.num{font-variant-numeric:tabular-nums}.muted{color:var(--muted)}.small{font-size:13px}
.top{display:flex;align-items:center;gap:6px 24px;flex-wrap:wrap;padding:14px 24px;max-width:1120px;margin:0 auto}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;color:var(--text);text-decoration:none;font-size:15px;letter-spacing:-.01em}.brand img{width:22px;height:auto;display:block}
.nav{display:flex;gap:2px 18px;flex-wrap:wrap;flex:1}.nav a{color:var(--muted);text-decoration:none;padding:6px 0;font-weight:500;font-size:14px;white-space:nowrap}.nav a:hover{color:var(--text)}.nav a.on{color:var(--text);font-weight:700}
.nav .count{color:var(--bad);font-weight:700}
.wrap{max-width:1120px;margin:0 auto;padding:4px 24px 96px}.wrap.narrow{max-width:680px}
.sheet{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);padding:24px;margin-bottom:12px}
.head{margin:14px 0 16px}.head .sub{color:var(--muted);margin-top:2px}
button,.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:36px;padding:0 13px;border:1px solid var(--control);border-radius:var(--radius-control);background:var(--surface);color:var(--text);font-family:inherit;font-weight:500;font-size:13.5px;line-height:1;text-decoration:none;cursor:pointer;white-space:nowrap;transition:background .12s,transform .08s}
button:hover,.btn:hover{background:var(--raised)}button:active,.btn:active{transform:translateY(1px)}
button.primary,.btn.primary{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}button.primary:hover,.btn.primary:hover{background:#333}
button.big,.btn.big{min-height:46px;font-size:15px;padding:0 20px}button.ghost{border-color:transparent;background:none;color:var(--muted)}button.ghost:hover{color:var(--text)}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
input[type=text],input[type=password],input[type=number],input[type=datetime-local],input[type=search],select,textarea{border:1px solid var(--control);border-radius:var(--radius-control);padding:0 11px;min-height:42px;font:inherit;font-size:16px;background:#fff;color:var(--text);max-width:100%}
textarea{padding:9px 11px;width:100%;line-height:1.6;min-height:110px;resize:vertical}
input[type=radio],input[type=checkbox]{accent-color:var(--ink)}
label.f{display:block;margin-bottom:14px;font-weight:600;font-size:14px}label.f input,label.f textarea,label.f select{display:block;width:100%;margin-top:5px;font-weight:400}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.spread{justify-content:space-between}
.grid-form{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:0 12px}
.flash{background:var(--raised);border-radius:var(--radius-control);padding:9px 12px;margin:0 0 10px;font-size:14px}
.err{background:var(--bad-soft);color:var(--bad);border-radius:var(--radius-control);padding:9px 12px;margin:0 0 12px;font-size:14px}
.pill{display:inline-block;padding:1px 8px;border-radius:4px;font-size:12px;font-weight:600;white-space:nowrap;flex:none}
.p-good,.p-info{background:var(--raised);color:var(--text)}.p-bad{background:var(--bad-soft);color:var(--bad)}.p-warn{background:#fff;color:var(--text);outline:1px solid var(--control);outline-offset:-1px}.p-plain{background:var(--rule);color:var(--muted)}
.list{list-style:none;margin:0;padding:0}.list>li{border-top:1px solid var(--rule)}.list>li:first-child{border-top:0}
.list a.item{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:13px 2px;color:var(--text);text-decoration:none}.list a.item:hover b{text-decoration:underline;text-underline-offset:3px}
.list b{font-weight:600}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(112px,1fr));gap:0;margin:0 0 18px;border:1px solid var(--border);border-radius:var(--radius-card)}.stat{padding:12px 16px;border-left:1px solid var(--rule)}.stat:first-child{border-left:0}.stat .v{font-size:26px;font-weight:600;font-variant-numeric:tabular-nums;line-height:1.3;letter-spacing:-.02em}.stat .k{font-size:12.5px;color:var(--muted)}
.scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.t{border-collapse:collapse;width:100%;font-size:14px}table.t th{font-weight:500;color:var(--muted);font-size:12.5px;text-align:left;padding:7px 8px;border-bottom:1px solid var(--border);white-space:nowrap}table.t td{padding:9px 8px;border-bottom:1px solid var(--rule);vertical-align:middle}table.t td.r,table.t th.r{text-align:right;font-variant-numeric:tabular-nums}
.meter{height:6px;border-radius:3px;background:var(--rule);min-width:60px;overflow:hidden}.meter i{display:block;height:100%;background:var(--ink);border-radius:3px}
/* 첫 화면: 검은 바탕에 로고만. 스크립트가 없어도 CSS만으로 걷힌다 */
.splash{position:fixed;inset:0;z-index:20;background:#0a0a0a;display:flex;align-items:center;justify-content:center;animation:splash-out .55s ease 1.5s forwards}
.splash img{width:min(36vw,168px);height:auto;animation:splash-in .8s ease both}
.seen .splash{display:none}
@keyframes splash-in{from{opacity:0;transform:scale(.97)}to{opacity:1;transform:none}}
@keyframes splash-out{to{opacity:0;visibility:hidden}}
@media (prefers-reduced-motion:reduce){.splash,.splash img{animation-duration:.01s}.splash{animation-delay:1s}button,.btn{transition:none}}
.login{max-width:380px;margin:12vh auto 0}.login-mark{text-align:center;margin-bottom:22px}.login-mark img{width:64px;height:auto;display:block;margin:0 auto 14px}.login-mark h1{font-size:19px}
/* 답 입력: 종이 OMR처럼 둥근 칸을 까맣게 칠한다 */
.sec-title{margin:22px 0 6px;font-weight:700}.sec-title:first-of-type{margin-top:0}
.omr{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:2px 32px}
.omr-row{display:flex;align-items:center;gap:6px;padding:5px 0;border-bottom:1px solid var(--rule)}.omr-no{width:28px;font-weight:700;font-variant-numeric:tabular-nums;text-align:right;flex:none;margin-right:6px}
.choice{position:relative;flex:1;display:flex;justify-content:center}.choice input{position:absolute;inset:0;width:100%;height:100%;opacity:0;margin:0;cursor:pointer}.choice span{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border:1.5px solid var(--control);border-radius:50%;font-size:15px;font-weight:500;background:#fff;color:var(--muted)}
.choice:hover span{border-color:var(--ink)}.choice input:checked+span{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:700}.choice input:focus-visible+span{outline:2px solid var(--ink);outline-offset:2px}
.omr-essay{grid-column:1/-1;display:flex;gap:8px;padding:8px 0;border-bottom:1px solid var(--rule)}.omr-essay textarea{min-height:64px}
.bar{position:fixed;left:0;right:0;bottom:0;background:var(--surface);border-top:1px solid var(--border);padding:10px 24px calc(10px + env(safe-area-inset-bottom))}.bar-in{max-width:1120px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:12px}
.marks{display:grid;grid-template-columns:repeat(auto-fill,minmax(68px,1fr));gap:4px;font-variant-numeric:tabular-nums}.mk{border:1px solid var(--border);border-radius:4px;padding:3px 7px;font-size:13px;display:flex;justify-content:space-between;gap:4px}.mk.x{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}.mk.e{background:var(--rule)}a.mk{text-decoration:none}a.mk.x:hover{background:#333}
/* 문항 본문 */
.q{padding:16px 0;border-top:1px solid var(--border);break-inside:avoid}.q:first-of-type{border-top:0}.q-no{font-weight:700;margin-bottom:4px}.q-meta{font-size:12.5px;color:var(--muted);margin-bottom:6px;font-weight:400}
.q-body{white-space:pre-wrap;line-height:1.7}.q-box{border:1px solid #444;padding:6px 10px;margin:6px 0;white-space:pre-wrap}.q-table{border-collapse:collapse;width:100%;margin:6px 0;white-space:normal;font-size:14px}.q-table td{border:1px solid #444;padding:3px 7px}
.q img{max-width:100%;height:auto;display:block;margin:6px 0}
.key{background:var(--ground);border-radius:var(--radius-control);padding:10px 12px;margin-top:8px;font-size:14px}.key p{margin:0 0 4px}
details>summary{cursor:pointer;font-weight:600;padding:4px 0}
.answer{background:var(--ground);border-left:3px solid var(--ink);padding:12px 14px;white-space:pre-wrap}.pre{white-space:pre-wrap}
.note{background:var(--raised);border-radius:var(--radius-control);padding:9px 12px;font-size:14px;margin-bottom:10px;white-space:pre-wrap}
/* 분석지·QR 안내문 */
.report{max-width:800px}.r-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;border-bottom:2px solid var(--ink);padding-bottom:10px;margin-bottom:14px}.r-org{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--muted);font-weight:600}.r-org img{width:16px;height:auto}
.r-sec{margin:18px 0 0}.lines{margin:0;padding-left:18px}.lines li{margin-bottom:3px}
.qr-sheet{text-align:center;padding:40px 24px}.qr-sheet img.logo{width:56px;height:auto;margin-bottom:14px}.qr-box{width:min(70vw,320px);margin:22px auto}.qr-box svg{display:block;width:100%;height:auto}.qr-url{font-size:15px;font-weight:600;font-variant-numeric:tabular-nums;word-break:break-all}
.page-break{break-after:page}.page-before{break-before:page;margin-top:18px}
@media (max-width:560px){.top{padding:12px 16px 4px}.top .brand{flex:1}.top .nav{order:3;flex:1 0 100%;gap:2px 18px}.wrap{padding:4px 16px 96px}.sheet{padding:16px}.omr{grid-template-columns:1fr}.hide-m{display:none}.bar{padding-left:16px;padding-right:16px}}
@media print{body{background:#fff;font-size:10.5pt}.top,.noprint,.bar,.splash{display:none!important}.wrap{max-width:none;padding:0}.sheet{border:0;padding:0;margin:0;border-radius:0}.meter,.meter i,.mk.x{-webkit-print-color-adjust:exact;print-color-adjust:exact}@page{size:A4;margin:14mm}.cols{column-count:2;column-gap:8mm;column-rule:1px solid #999}.cols .q{padding:0 0 6mm;border:0}.report{max-width:none}}