:root{
  --bg:#F5F6FA;--panel:#fff;--panel2:#EEF0F6;--ink:#14213A;--mut:#5C6783;--line:#DDE1EC;
  --navy:#14213A;--yellow:#FFE066;--accent:#2E55D4;--good:#1E9E63;--warn:#D9822B;--bad:#D14B4B;
  --shadow:0 1px 2px rgba(20,33,58,.06),0 6px 20px rgba(20,33,58,.06);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0E1526;--panel:#16203A;--panel2:#1D2947;--ink:#EEF1FA;--mut:#9AA6C4;--line:#2A3858;--accent:#7FA0FF;--good:#4AD08F;--warn:#F2A95B;--bad:#F27B7B;--shadow:0 1px 2px rgba(0,0,0,.4)}}
:root[data-theme="dark"]{--bg:#0E1526;--panel:#16203A;--panel2:#1D2947;--ink:#EEF1FA;--mut:#9AA6C4;--line:#2A3858;--accent:#7FA0FF;--good:#4AD08F;--warn:#F2A95B;--bad:#F27B7B}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 'Nanum Gothic','Apple SD Gothic Neo','Malgun Gothic',system-ui,sans-serif;min-height:100vh;word-break:keep-all;overflow-wrap:break-word;line-break:strict}
a{color:var(--accent)}
.muted{color:var(--mut)}.small{font-size:13px}.tiny{font-size:11.5px}.grow{flex:1}.right{text-align:right}.center{text-align:center}
.top{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:10px;padding:10px 16px;background:var(--navy);color:#fff}
.top .brand{display:flex;align-items:center;gap:8px;color:#fff;text-decoration:none}
.top .brand b{font-size:16px;letter-spacing:.2px}.top .brand img.wl-logo{height:30px;width:auto;border-radius:0}.top .brand b.wl-sub{font-size:13px;font-weight:700;color:#FFE066;opacity:.9;margin-top:6px}
.top .sub{color:#B8C2DE;font-size:13px}
.top button{background:transparent;border:1px solid #4a5a85;color:#fff;border-radius:8px;padding:5px 10px;font:inherit;font-size:13px;cursor:pointer}
.wrap{max-width:1080px;margin:0 auto;padding:16px}
.narrow{max-width:560px}
h1{font-size:22px;margin:6px 0 10px}h2{font-size:18px;margin:22px 0 10px}h3{font-size:15px;margin:14px 0 8px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:var(--shadow);margin:0 0 14px}
.card.flat{box-shadow:none}
.grid{display:grid;gap:14px}.g2{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media(max-width:760px){.g2,.g3,.g4{grid-template-columns:1fr}.g4.keep2{grid-template-columns:repeat(2,minmax(0,1fr))}}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
button,.btn{font:inherit;cursor:pointer}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:var(--panel);color:var(--ink);padding:10px 16px;border-radius:12px;font-weight:700;min-height:44px;text-decoration:none}
.btn:hover{border-color:var(--accent)}
.btn.pri{background:var(--navy);color:#fff;border-color:var(--navy)}
:root[data-theme="dark"] .btn.pri{background:var(--yellow);color:#14213A;border-color:var(--yellow)}
.btn.yel{background:var(--yellow);color:#14213A;border-color:#E8C93A}
.btn.sm{min-height:34px;padding:6px 12px;font-size:14px;border-radius:10px}
.btn.danger{color:var(--bad)}
.btn:disabled{opacity:.45;cursor:not-allowed}
input,select,textarea{font:inherit;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px 12px;min-height:44px;width:100%}
textarea{min-height:90px}
label.f{display:block;font-size:13px;color:var(--mut);margin:10px 0 4px}
.pill{display:inline-block;padding:2px 9px;border-radius:99px;font-size:12px;font-weight:700;background:var(--panel2);color:var(--mut)}
.pill.good{background:rgba(30,158,99,.14);color:var(--good)}.pill.warn{background:rgba(217,130,43,.15);color:var(--warn)}.pill.bad{background:rgba(209,75,75,.14);color:var(--bad)}.pill.acc{background:rgba(46,85,212,.12);color:var(--accent)}
.tabs{display:flex;gap:4px;overflow:auto;border-bottom:1px solid var(--line);margin:0 0 14px;-webkit-overflow-scrolling:touch}
.tabs button{border:0;background:transparent;padding:10px 14px;font-weight:700;color:var(--mut);border-bottom:3px solid transparent;white-space:nowrap}
.tabs button.on{color:var(--ink);border-color:var(--yellow)}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:8px 8px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
th{font-size:12px;color:var(--mut);font-weight:700;white-space:nowrap}
tr.click{cursor:pointer}tr.click:hover{background:var(--panel2)}
.scroll-x{overflow-x:auto}
.chart{width:100%;height:auto;display:block}
.chart .gl{stroke:var(--line);stroke-width:1}.chart .gt{fill:var(--mut);font-size:10px}.chart .gv{fill:var(--ink);font-size:10.5px;font-weight:700}
.brow{display:flex;align-items:center;gap:8px;margin:5px 0;font-size:13px}.brow .bl{width:120px;flex:none;color:var(--ink)}.brow .bt{flex:1;height:9px;background:var(--panel2);border-radius:99px;overflow:hidden}.brow .bt i{display:block;height:100%;border-radius:99px}.brow .bv{width:84px;text-align:right;color:var(--mut);flex:none}
.stat{padding:12px 14px;border-radius:14px;background:var(--panel2)}.stat b{display:block;font-size:24px;line-height:1.1}.stat span{font-size:12px;color:var(--mut)}
.hero{background:linear-gradient(135deg,#14213A,#243B73);color:#fff;border:0;border-radius:20px;padding:20px}
.hero .lv{font-size:30px;font-weight:800;color:var(--yellow);line-height:1.15}
.hero .msg{color:#DCE4FA;margin-top:6px}
.hero .meter{height:10px;background:rgba(255,255,255,.18);border-radius:99px;margin:12px 0 4px;overflow:hidden}.hero .meter i{display:block;height:100%;background:var(--yellow);border-radius:99px}
.hero .ladder{display:flex;gap:6px;margin-top:10px}.hero .ladder span{flex:1;text-align:center;font-size:12px;padding:5px 0;border-radius:8px;background:rgba(255,255,255,.12);color:#B8C2DE}.hero .ladder span.done{background:var(--yellow);color:#14213A;font-weight:800}.hero .ladder span.cur{outline:2px solid var(--yellow);color:#fff}
.insight{display:flex;gap:10px;padding:12px;border-radius:12px;background:var(--panel2);margin:8px 0;border-left:4px solid var(--mut)}
.insight.good{border-color:var(--good)}.insight.warn{border-color:var(--warn)}.insight.info{border-color:var(--accent)}
.insight b{display:block;margin-bottom:2px}
/* 시험 화면 */
.exam{max-width:760px;margin:0 auto;padding:12px 14px 120px}
.qbar{display:flex;gap:4px;margin:8px 0 12px;flex-wrap:wrap}.qbar i{width:calc((100% - 76px)/20);min-width:10px;height:8px;border-radius:4px;background:var(--panel2);display:block}.qbar i.done{background:var(--accent)}.qbar i.cur{background:var(--yellow);outline:2px solid var(--navy)}
.qimg{width:100%;background:#fff;border:1px solid var(--line);border-radius:12px;display:block}
.choices{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin:14px 0}
.choices button{min-height:64px;border-radius:14px;border:2px solid var(--line);background:var(--panel);font-size:24px;font-weight:800;color:var(--ink)}
.choices button.sel{background:var(--navy);color:var(--yellow);border-color:var(--navy)}
.choices button.ok{background:rgba(30,158,99,.18);border-color:var(--good)}.choices button.no{background:rgba(209,75,75,.16);border-color:var(--bad)}
.choices button:disabled{opacity:.55}
.timer{height:8px;background:var(--panel2);border-radius:99px;overflow:hidden}.timer i{display:block;height:100%;width:0;background:var(--accent);transition:width .15s linear}
.player{position:sticky;bottom:0;background:var(--panel);border-top:1px solid var(--line);padding:10px 14px;display:flex;gap:10px;align-items:center;flex-wrap:wrap;z-index:15}
.speed{display:flex;gap:4px;flex-wrap:wrap}.speed button{border:1px solid var(--line);background:var(--panel);border-radius:10px;padding:6px 10px;font-weight:700;min-height:36px;color:var(--ink)}.speed button.on{background:var(--yellow);border-color:#E8C93A;color:#14213A}
#ytbox{position:fixed;right:0;bottom:0;width:200px;height:200px;opacity:.01;pointer-events:none;z-index:-1;overflow:hidden}
.wave{display:flex;gap:3px;align-items:flex-end;height:26px}.wave i{width:4px;background:var(--accent);border-radius:2px;height:6px}.wave.on i{animation:wv 0.9s ease-in-out infinite}.wave i:nth-child(2){animation-delay:.12s}.wave i:nth-child(3){animation-delay:.24s}.wave i:nth-child(4){animation-delay:.36s}.wave i:nth-child(5){animation-delay:.48s}
@keyframes wv{0%,100%{height:6px}50%{height:24px}}
.script{white-space:pre-wrap;font-size:15px;line-height:1.75;background:var(--panel2);border-radius:12px;padding:12px 14px}
.script mark{background:#FFE06688;color:inherit;border-radius:4px;padding:0 2px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border:1px solid var(--line);border-radius:99px;margin:3px 4px 3px 0;font-size:14px;background:var(--panel)}
.chip.k{background:rgba(30,158,99,.12);border-color:var(--good)}
.chip button{border:0;background:transparent;font-size:15px;padding:0 2px;cursor:pointer}
.fcard{min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;font-size:32px;font-weight:800;cursor:pointer;user-select:none}
.fcard small{font-size:15px;font-weight:400;color:var(--mut);margin-top:8px}
.tile{display:inline-flex;width:34px;height:34px;border-radius:9px;align-items:center;justify-content:center;font-weight:800;font-size:13px;margin:2px;color:#fff}
.tile.o{background:var(--good)}.tile.x{background:var(--bad)}
.overlay{position:fixed;inset:0;background:rgba(10,16,32,.72);display:flex;align-items:center;justify-content:center;z-index:50;padding:16px}
.overlay .card{max-width:480px;width:100%}
#toast{position:fixed;left:50%;bottom:90px;transform:translate(-50%,20px);background:var(--navy);color:#fff;padding:10px 16px;border-radius:12px;opacity:0;pointer-events:none;transition:.2s;z-index:99;max-width:90vw}#toast.on{opacity:1;transform:translate(-50%,0)}
.banner{background:var(--yellow);color:#14213A;padding:8px 14px;font-size:13px;text-align:center;font-weight:700}
.err{color:var(--bad);font-size:14px;margin:8px 0}
.thumb{height:46px;border:1px solid var(--line);border-radius:6px;background:#fff}
.sticky-col th:first-child,.sticky-col td:first-child{position:sticky;left:0;background:var(--panel)}
.hm{width:26px;height:22px;text-align:center;font-size:11px;color:#fff;font-weight:700;padding:0;border-radius:4px}
.kbd{font-family:'Nanum Gothic Coding',ui-monospace,monospace}
details>summary{cursor:pointer;font-weight:700;padding:6px 0}
.steps{display:flex;gap:6px;margin:0 0 14px;flex-wrap:wrap}.steps span{padding:6px 12px;border-radius:99px;background:var(--panel2);font-size:13px;font-weight:700;color:var(--mut)}.steps span.on{background:var(--navy);color:var(--yellow)}
@media print{.top,.tabs,.btn,.noprint,#toast,.banner{display:none!important}body{background:#fff;color:#000}.card{box-shadow:none;border:1px solid #bbb;break-inside:avoid;-webkit-print-color-adjust:exact;print-color-adjust:exact}}
/* 상단 바: 로고가 넓어져도 줄바꿈 없이 */
.top{flex-wrap:nowrap}.top .sub{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.top #topright{white-space:nowrap;flex-shrink:0}.top #topright button{white-space:nowrap}
@media (max-width:480px){.top .brand b.wl-sub{display:none}.top .brand img.wl-logo{height:25px}.top .sub{font-size:12px}}
/* ---- 교사 대시보드·학생 관리 (효율형) ---- */
.chip{border:1px solid var(--line,#dde3f0);background:#fff;border-radius:999px;padding:6px 12px;font:inherit;font-size:13px;cursor:pointer;color:#14213A}.chip.on{background:#14213A;color:#FFE066;border-color:#14213A}.chip b{margin-left:3px}
.stat.alert{background:#FFF0F0;outline:2px solid #f3b4b4}.stat.alert b{color:#c0392b}.stat small{font-size:.55em}
.todo{display:flex;gap:10px;align-items:flex-start;padding:9px 0;border-bottom:1px solid #eef1f8}.todo:last-of-type{border:0}.todo-n{width:24px;height:24px;border-radius:50%;background:#14213A;color:#FFE066;font-weight:800;font-size:13px;display:flex;align-items:center;justify-content:center;flex:none;margin-top:2px}.todo-b{flex:1;min-width:0}
.todo-why{margin:4px 0 2px;display:flex;flex-wrap:wrap;gap:4px}.why-chip{background:#FFF1D6;color:#7a4b00;border-radius:6px;padding:2px 8px;font-size:12px}.todo-act{font-size:13px;color:#2E55D4;font-weight:700}
.stackcol{display:flex;flex-direction:column;gap:14px}.stackcol .card{margin:0}
.stack{display:flex;height:30px;border-radius:8px;overflow:hidden;gap:2px}.stack i{display:flex;align-items:center;justify-content:center;font-style:normal;font-size:12px;font-weight:700;color:#fff;min-width:4px;overflow:hidden;white-space:nowrap}
.up{color:var(--good)}.down{color:var(--bad)}
.bulkbar{display:none;gap:8px;align-items:center;flex-wrap:wrap;background:#14213A;color:#fff;border-radius:10px;padding:8px 12px;margin-bottom:10px}.bulkbar.on{display:flex}.bulkbar .btn{background:#fff}.bulkbar input{background:#fff}
.freshcard{outline:2px solid #FFE066}.copy{cursor:pointer}.copy:hover{background:#FFF6CC}
#printcards{display:none}
@media print{body.pc>*:not(#printcards){display:none!important}body.pc #printcards{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;padding:10px}.lcard{border:1.5px solid #14213A;border-radius:10px;padding:12px;break-inside:avoid}.lc-h{background:#14213A;color:#FFE066;font-weight:800;padding:6px 10px;border-radius:6px;font-size:15px}.lc-h small{color:#fff;font-weight:400;font-size:11px}.lc-n{font-size:19px;font-weight:800;margin:8px 0}.lc-n span{font-size:12px;color:#555;font-weight:400}.lc-r{display:flex;justify-content:space-between;font-size:16px;padding:3px 0;border-bottom:1px dotted #bbb}.lc-r b{font-family:monospace;font-size:20px;letter-spacing:2px}.lc-u{font-size:10px;color:#666;margin-top:6px}}
/* ---- 맞춤 워크북 ---- */
#wbov{position:fixed;inset:0;background:#7b8294;overflow:auto;z-index:50}.wb-bar{position:sticky;top:0;background:#14213A;color:#fff;display:flex;gap:10px;align-items:center;padding:10px 16px;z-index:2}
.wb-pages{padding:16px;display:flex;flex-direction:column;align-items:center;gap:16px}
.wbp{width:210mm;min-height:297mm;background:#fff;color:#14213A;padding:14mm 14mm;box-shadow:0 2px 12px #0004;font-size:13px;line-height:1.5}.wbp.tch{border-top:8px solid #c0392b}
.wb-h{display:flex;align-items:baseline;gap:10px;border-bottom:3px solid #14213A;padding-bottom:6px}.wb-h span{background:#14213A;color:#FFE066;font-weight:800;padding:2px 8px;border-radius:5px;font-size:12px}.wb-h b{font-size:20px}.wb-h em{margin-left:auto;font-style:normal;color:#555;font-size:12px}
.wb-sub{background:#FFF6CC;border-radius:6px;padding:6px 10px;margin:8px 0;font-size:12.5px}.wbp h3{margin:12px 0 5px;font-size:15px}
.wb-box{border:1.5px solid #14213A;border-radius:8px;padding:8px 12px;margin:8px 0}
.wb-t{width:100%;border-collapse:collapse}.wb-t td,.wb-t th{border:1px solid #9aa3b8;padding:6px 8px;height:30px}.wb-t th{background:#eef1f8}
.wb-q{border:1px solid #c5ccdd;border-radius:8px;padding:8px 10px;margin:8px 0;break-inside:avoid}.wb-script{background:#f5f7fb;border-radius:6px;padding:8px 10px;margin:6px 0;font-size:13.5px;line-height:1.8}
.wb-lines i{display:block;border-bottom:1px solid #8b94aa;height:24px}u.blank{border-bottom:1.5px solid #14213A;text-decoration:none}
@media print{body.pw>*:not(#wbov){display:none!important}body.pw #wbov{position:static;background:#fff;overflow:visible}body.pw .wb-bar{display:none}body.pw .wb-pages{padding:0;gap:0}body.pw .wbp{box-shadow:none;width:auto;min-height:0;page-break-after:always;padding:0}@page{size:A4;margin:12mm}}
/* ---- 복습 코스 ---- */
.cstep{display:flex;align-items:center;gap:4px;margin:10px 0;flex-wrap:nowrap}.cstep span{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--mut);white-space:nowrap;font-weight:700}.cstep span b{width:24px;height:24px;border-radius:50%;background:#dde3f0;color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px}.cstep span.cur{color:#14213A}.cstep span.cur b{background:#14213A;color:#FFE066}.cstep span.done{color:#1e9e63}.cstep span.done b{background:#1e9e63}.cstep i{flex:1;height:2px;background:#dde3f0;min-width:8px}.cstep.mini span{font-size:12px}
.nextstep{outline:2px solid #FFE066}.pathcard{border:1px solid #dde3f0}
.reasons,.vopts{display:flex;flex-wrap:wrap;gap:8px}.vopts{display:grid;grid-template-columns:1fr 1fr}.rs{border:2px solid #dde3f0;background:#fff;border-radius:12px;padding:10px 12px;font:inherit;font-size:15px;cursor:pointer;color:#14213A;text-align:left}.rs.on{border-color:#2E55D4;background:#EAF0FF;font-weight:800}.rs.ok{border-color:#1e9e63;background:#E6F6EE}.rs.no{border-color:#d14b4b;background:#FDECEC}
.sline{display:block;width:100%;text-align:left;border:2px solid transparent;background:#f5f7fb;border-radius:8px;padding:8px 10px;margin:4px 0;font:inherit;font-size:15px;cursor:pointer;color:#14213A}.sline.ok{border-color:#1e9e63;background:#E6F6EE}.sline.no{border-color:#d14b4b;background:#FDECEC}
.script.blur{filter:blur(7px);user-select:none}input.dq{border:0;border-bottom:2px solid #14213A;border-radius:0;min-height:30px;padding:0 4px;text-align:center;width:90px;display:inline-block;font-size:18px;background:#FFFBEA}b.okw{color:#1e9e63}b.now{color:#d14b4b;text-decoration:underline}

/* 듣기 전략 */
.stcard{border:1px solid var(--line,#dfe4f0);border-left:5px solid #2E55D4;border-radius:12px;padding:12px 14px;margin:10px 0;background:#fff}
.stcard .sth{font-weight:800;margin-bottom:6px}.stl{font-size:14px;line-height:1.7;margin:4px 0}.stl b{color:#2E55D4;margin-right:4px}.stl.warn b{color:#C0392B}
.strat h3{margin-top:0}.stlist{margin:6px 0 8px 18px;padding:0;line-height:1.8;font-size:14px}.weakmark .stcard{border-left-color:#E08A00;background:#FFFBE6}
.stepno{width:34px;height:34px;border-radius:50%;background:#14213A;color:#FFE066;font-weight:800;display:flex;align-items:center;justify-content:center;flex:none}
.wb-exp{background:#f5f7fc;border-radius:6px;padding:6px 9px;font-size:12px;line-height:2.1;margin-top:3px}