/* 수능반 학생 화면 — 밤 공부방(남색·보라 오로라) + 종이 지문 + 금색 목표 */
:root{
  --night:#0b1030; --night2:#141a46; --indigo:#4353e6; --violet:#7c5cff; --sky:#38bdf8;
  --gold:#f5b942; --gold-soft:#fff4dc; --gold-ink:#8a5a00;
  --red:#e5484d; --red-soft:#ffeceb; --green:#0fa47f; --green-soft:#e3f8f1;
  --bg:#eef0f8; --card:#ffffff; --paper:#fffdf8; --ink:#101631; --mute:#5d6584; --line:#e2e5f1;
  --r:20px; --sh:0 1px 2px rgba(16,22,49,.04),0 8px 28px rgba(16,22,49,.07);
  --en:"Georgia","Cambria","Times New Roman",serif;
  --num:"Pretendard","SF Pro Display","Segoe UI","Malgun Gothic",system-ui,sans-serif;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--ink);
  font:16px/1.55 "Pretendard","Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;letter-spacing:-.01em}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
input,textarea,select{font:inherit;color:inherit}
.hide{display:none!important}
.err{color:var(--red);min-height:1.4em;margin:10px 0 0}
.link{color:var(--indigo);padding:10px;text-decoration:underline}
:focus-visible{outline:3px solid var(--violet);outline-offset:2px;border-radius:8px}

/* 배경 오로라(로그인·머리) */
.aurora{position:absolute;inset:0 0 auto 0;height:330px;z-index:0;pointer-events:none;overflow:hidden;
  background:linear-gradient(180deg,var(--night) 0%,#151c55 62%,rgba(238,240,248,0) 100%)}
.aurora i{position:absolute;border-radius:50%;filter:blur(60px);opacity:.55;animation:drift 18s ease-in-out infinite alternate}
.aurora i:nth-child(1){width:420px;height:260px;left:-80px;top:-60px;background:#5b4bff}
.aurora i:nth-child(2){width:360px;height:240px;right:-60px;top:-40px;background:#22b8e6;animation-delay:-6s;opacity:.35}
.aurora i:nth-child(3){width:300px;height:200px;left:40%;top:60px;background:#b14bff;animation-delay:-12s;opacity:.3}
@keyframes drift{to{transform:translate(40px,30px) scale(1.15)}}
body.in-login .aurora{position:fixed;height:100%;background:linear-gradient(160deg,var(--night),#1a1f5e 60%,#2a1d6b)}

/* 로그인 */
.login{position:relative;z-index:1;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.login-box{width:min(460px,100%);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-radius:28px;padding:36px 30px;text-align:center;color:#fff;
  box-shadow:0 30px 80px rgba(0,0,0,.35)}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:800;font-size:19px;color:#fff;letter-spacing:-.4px}
.brand.big{font-size:30px;gap:12px}
.brand-mark{display:inline-grid;place-items:center;width:1.55em;height:1.55em;border-radius:.45em;font-size:.92em;color:var(--night);
  background:linear-gradient(135deg,#ffe29a,var(--gold) 55%,#e08a1e);box-shadow:0 4px 16px rgba(245,185,66,.45)}
.login-tag{margin:8px 0 26px;color:#c9cdf5;font-size:14px;letter-spacing:.08em}
.name-in{width:100%;max-width:280px;padding:14px;border-radius:14px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.1);
  color:#fff;font-size:20px;text-align:center;margin:0 0 18px}
.name-in::placeholder{color:#aab0e0}
.pin-dots{display:flex;gap:16px;justify-content:center;margin:4px 0 20px}
.pin-dots i{width:15px;height:15px;border-radius:50%;border:2px solid #d9dcff;transition:.15s}
.pin-dots i.on{background:var(--gold);border-color:var(--gold);transform:scale(1.15);box-shadow:0 0 12px var(--gold)}
.pad{display:grid;grid-template-columns:repeat(3,78px);gap:12px;justify-content:center}
.pad button{height:62px;border-radius:18px;background:rgba(255,255,255,.1);font-size:23px;font-weight:700;color:#fff;transition:.1s}
.pad button:active{background:rgba(255,255,255,.25);transform:scale(.95)}
.login .err{color:#ffb4b4}

/* 머리 */
#app{position:relative;z-index:1}
.top{position:sticky;top:0;z-index:8;display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding:12px 20px calc(12px);padding-top:max(12px,env(safe-area-inset-top));color:#fff;
  background:rgba(11,16,48,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.08)}
.top-l{display:flex;align-items:center;gap:14px;min-width:0}
.lesson-label{color:#c3c8f2;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top-r{display:flex;align-items:center;gap:10px}
.dday{font:800 13px/1 ui-monospace,Consolas,monospace;color:var(--gold);padding:7px 10px;border:1px solid rgba(245,185,66,.45);border-radius:999px;white-space:nowrap}
.stage-chip{padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.12);font-weight:700;font-size:14px;white-space:nowrap}
.stage-chip.solve{background:linear-gradient(135deg,var(--violet),var(--indigo))}
.stage-chip.break{background:rgba(245,185,66,.2);color:var(--gold)}
.stage-chip:empty{display:none}
.clock{font:700 22px/1 ui-monospace,Consolas,monospace;min-width:70px;text-align:right;font-variant-numeric:tabular-nums}
.clock.low{color:#ff8a8d}
.clock:empty{display:none}
.progress{position:sticky;top:var(--toph,62px);z-index:7;display:flex;gap:3px;padding:0 20px;height:4px;background:rgba(11,16,48,.82)}
.progress i{flex:1;background:rgba(255,255,255,.12);border-radius:2px}
.progress i.done{background:rgba(124,92,255,.6)}
.progress i.now{background:var(--gold);box-shadow:0 0 8px var(--gold)}
.progress:empty{display:none}

main{max-width:1000px;margin:0 auto;padding:22px 18px 130px}
.view{animation:up .32s cubic-bezier(.2,.8,.2,1)}
@keyframes up{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.card{background:var(--card);border-radius:var(--r);padding:22px;margin-bottom:16px;box-shadow:var(--sh);border:1px solid rgba(226,229,241,.7)}
.card h2{margin:0 0 4px;font-size:22px;letter-spacing:-.4px}
.card h3{margin:0 0 12px;font-size:17px;letter-spacing:-.3px}
.sub{color:var(--mute);margin:0 0 14px;font-size:15px}
.m{color:var(--mute)}
.empty{color:var(--mute);text-align:center;padding:30px 10px}
.hello{color:#fff;margin:4px 4px 18px}
.hello .k{font-size:14px;color:#b9bff0;letter-spacing:.06em}
.hello .t{font-size:28px;font-weight:800;letter-spacing:-.6px;margin-top:2px}
.hello .t em{font-style:normal;background:linear-gradient(90deg,#ffe29a,var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}

/* 뒤로·제목 줄 */
.vhead{display:flex;align-items:center;gap:10px;margin:0 0 16px;color:#fff}
.vhead .back{display:inline-flex;align-items:center;gap:4px;padding:9px 14px 9px 10px;border-radius:999px;background:rgba(255,255,255,.12);
  color:#fff;font-weight:700;font-size:15px;border:1px solid rgba(255,255,255,.14)}
.vhead .back:active{background:rgba(255,255,255,.22)}
.vhead h2{margin:0;font-size:22px;letter-spacing:-.4px;flex:1;min-width:0}
.vhead .right{margin-left:auto}

/* 버튼 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:14px;font-weight:800;font-size:16px;min-height:50px;
  color:#fff;background:linear-gradient(135deg,var(--violet),var(--indigo));box-shadow:0 6px 18px rgba(67,83,230,.32);transition:transform .1s,box-shadow .2s}
.btn:active{transform:scale(.97)}
.btn.gold{background:linear-gradient(135deg,#ffd77a,var(--gold) 60%,#e8951f);color:#3a2600;box-shadow:0 6px 18px rgba(245,185,66,.4)}
.btn.ghost{background:#eef0fb;color:var(--indigo);box-shadow:none}
.btn.dark{background:var(--night);box-shadow:none}
.btn.red{background:linear-gradient(135deg,#ff6b6f,var(--red));box-shadow:0 6px 18px rgba(229,72,77,.3)}
.btn.sm{padding:9px 15px;font-size:14px;min-height:42px;border-radius:12px}
.btn.wide{width:100%}
.btn:disabled{opacity:.45;pointer-events:none}
.pill{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:999px;font-size:13px;font-weight:700;background:#eef0f7;color:var(--mute);white-space:nowrap}
.pill.r{background:var(--red-soft);color:var(--red)} .pill.g{background:var(--green-soft);color:var(--green)}
.pill.b{background:#ecebff;color:#4b3fd6} .pill.a{background:var(--gold-soft);color:var(--gold-ink)}
.row2{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.sp{flex:1}

/* 수업용 구간 타일 */
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:14px}
.tile{position:relative;overflow:hidden;text-align:left;padding:20px 20px 18px;border-radius:22px;background:var(--card);box-shadow:var(--sh);
  border:1px solid rgba(226,229,241,.8);transition:transform .12s,box-shadow .2s;min-height:150px;display:flex;flex-direction:column}
.tile:active{transform:scale(.98)}
.tile::before{content:"";position:absolute;inset:0 0 auto 0;height:5px;background:var(--g)}
.tile::after{content:"";position:absolute;right:-40px;top:-40px;width:150px;height:150px;border-radius:50%;background:var(--g);opacity:.09}
.tile .k{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--mute)}
.tile .n{font:800 40px/1.05 var(--num);letter-spacing:-1px;margin:6px 0 4px;background:var(--g);-webkit-background-clip:text;background-clip:text;color:transparent}
.tile .d{color:var(--mute);font-size:14px}
.tile .st{margin-top:auto;padding-top:12px;display:flex;gap:6px;flex-wrap:wrap}
.tile.done{background:linear-gradient(180deg,#fff,#fbfbff)}
.g-L{--g:linear-gradient(135deg,#38bdf8,#4353e6)} .g-A{--g:linear-gradient(135deg,#7c5cff,#4353e6)}
.g-B{--g:linear-gradient(135deg,#c056ff,#7c5cff)} .g-C{--g:linear-gradient(135deg,#ff6fae,#c056ff)}
.g-D{--g:linear-gradient(135deg,#f5b942,#ff6f61)}

/* 미니 점수 띠 */
.strip{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 16px}
.strip > div{flex:1;min-width:120px;padding:12px 16px;border-radius:16px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.14);color:#fff;backdrop-filter:blur(8px)}
.strip b{display:block;font-size:22px;font-variant-numeric:tabular-nums}
.strip span{font-size:12.5px;color:#c3c8f2}

/* 문항 번호 칩 */
.nos{display:flex;flex-wrap:wrap;gap:8px}
.no-b{position:relative;min-width:52px;height:48px;padding:0 10px;border-radius:14px;background:#f1f2fa;font-weight:800;font-size:17px;color:#3a4166;
  border:2px solid transparent;font-variant-numeric:tabular-nums;transition:.12s}
.no-b:active{transform:scale(.95)}
.no-b.on{background:var(--night);color:#fff;box-shadow:0 6px 16px rgba(11,16,48,.3)}
.no-b.wrong{background:var(--red-soft);color:var(--red);border-color:rgba(229,72,77,.55);animation:glow 1.8s ease-in-out infinite}
.no-b.wrong.on{background:var(--red);color:#fff}
.no-b.okv{background:var(--green-soft);color:var(--green)}
.no-b.na{opacity:.55}
.no-b .dot{position:absolute;right:-4px;top:-5px;min-width:19px;height:19px;padding:0 5px;border-radius:999px;background:var(--gold);color:#3a2600;font-size:11px;line-height:19px}
.no-b .dot.v{background:var(--violet);color:#fff}
@keyframes glow{0%,100%{box-shadow:0 0 0 0 rgba(229,72,77,.0)}50%{box-shadow:0 0 0 5px rgba(229,72,77,.18),0 0 18px rgba(229,72,77,.45)}}
.nos-h{font-size:13px;font-weight:800;color:var(--mute);letter-spacing:.06em;margin:16px 0 8px}
.nos-h:first-child{margin-top:0}

/* 정답 확인·틀린 문항 체크 */
.keybar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:14px}
.keybar .hint{color:var(--mute);font-size:14px}
.klist{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:8px;margin-top:14px}
.krow{display:flex;align-items:center;gap:10px;padding:8px 10px 8px 14px;border-radius:14px;background:#f6f7fc;border:2px solid transparent;cursor:pointer;user-select:none;transition:.12s}
.krow .kn{width:30px;font-weight:800;font-size:17px;color:var(--night);font-variant-numeric:tabular-nums}
.krow .ka{flex:1;font-size:20px;font-weight:800;color:var(--indigo)}
.krow .ka small{font-size:12px;color:var(--mute);font-weight:600;margin-left:4px}
.krow .kc{display:flex;align-items:center;gap:6px;padding:7px 10px;border-radius:10px;background:#fff;border:2px solid #d6d9ea;font-size:14px;font-weight:700;color:var(--mute)}
.krow.x{background:var(--red-soft);border-color:rgba(229,72,77,.4)}
.krow.x .kc{background:var(--red);border-color:var(--red);color:#fff}
.krow.hide-k .ka{color:transparent;text-shadow:0 0 10px rgba(67,83,230,.5)}
.done-banner{display:flex;align-items:center;gap:12px;margin-top:14px;padding:14px 16px;border-radius:16px;background:linear-gradient(135deg,#e9fbf4,#e3f2ff);color:#0b5c48;font-weight:700}

/* 지문 */
.paper{background:var(--paper);border-radius:var(--r);padding:26px 28px;margin-bottom:16px;box-shadow:var(--sh);border:1px solid #efe9da;position:relative}
.paper .qhead{display:flex;align-items:center;gap:8px;margin-bottom:12px;font-family:inherit}
.paper .qno{font:800 28px/1 var(--num);color:var(--night)}
.psg{font-family:var(--en);font-size:19px;line-height:1.9;color:#1b1f33;touch-action:manipulation;-webkit-user-select:none;user-select:none}
.psg .stem{font-family:"Pretendard","Apple SD Gothic Neo","Malgun Gothic",sans-serif;font-weight:700;font-size:17px;line-height:1.6;margin:0 0 14px;color:var(--ink)}
.psg .instr{font-family:"Pretendard","Apple SD Gothic Neo","Malgun Gothic",sans-serif;color:var(--mute);font-size:15px;margin-bottom:10px}
.psg p{margin:0 0 12px}
.psg .box{border:1.5px solid #d9d2bd;border-radius:12px;padding:12px 16px;margin:0 0 12px;background:#fffaf0}
.psg .note{font-size:14px;color:var(--mute);text-align:right;margin:0 0 10px}
.psg .arrow{text-align:center;color:var(--mute);margin:0 0 10px}
.psg img{max-width:100%;border-radius:10px;margin:0 0 10px}
.psg .chs{display:grid;gap:6px;margin-top:16px;font-size:17px;line-height:1.6}
.psg .chs div{padding:6px 10px;border-radius:10px}
.psg .chs .cn{font-weight:800;color:var(--indigo);margin-right:6px;font-family:inherit}
.wd{border-radius:5px;cursor:pointer;transition:background .15s;padding:0 1px}
.wd.seen{background:linear-gradient(transparent 62%,rgba(245,185,66,.45) 62%)}
.wd.sel{background:rgba(124,92,255,.18);box-shadow:0 0 0 2px rgba(124,92,255,.45);color:#3b2bb8}
.wd.flash{background:rgba(67,83,230,.18)}
.blank{display:inline-block;width:7em;border-bottom:1.5px solid currentColor;vertical-align:-2px;margin:0 2px}

/* 낱말 뜻 말풍선 */
.pop{position:fixed;z-index:40;min-width:180px;max-width:300px;padding:14px 16px;border-radius:16px;background:var(--night);color:#fff;
  box-shadow:0 18px 40px rgba(11,16,48,.4);animation:pop .18s cubic-bezier(.2,.9,.3,1.3)}
.pop .pw{font:700 19px/1.2 var(--en)}
.pop .pm{margin-top:6px;font-size:16px;color:#e4e6ff}
.pop .pc{margin-top:10px;display:inline-block;padding:3px 10px;border-radius:999px;font-size:13px;font-weight:800;background:rgba(229,72,77,.25);color:#ffb0b2}
.pop .pc.free{background:rgba(255,255,255,.12);color:#c3c8f2}
@keyframes pop{from{opacity:0;transform:translateY(6px) scale(.96)}to{opacity:1;transform:none}}

/* 감점 표시 */
.pen{position:sticky;top:calc(var(--toph,62px) + 12px);z-index:5;display:flex;justify-content:flex-end;pointer-events:none;margin-bottom:-6px}
.pen span{pointer-events:auto;padding:8px 14px;border-radius:999px;background:var(--night);color:#fff;font-size:14px;font-weight:700;box-shadow:0 8px 20px rgba(11,16,48,.25)}
.pen b{color:#ff9b9e;margin-left:6px}
.pen span.bump{animation:bump .4s}
@keyframes bump{40%{transform:scale(1.12)}}

/* 수업 후 관리 점수 */
.hero{position:relative;overflow:hidden;border-radius:26px;padding:24px;margin-bottom:16px;color:#fff;
  background:radial-gradient(120% 140% at 100% 0%,#3b2a9a 0%,transparent 55%),linear-gradient(135deg,#121848,#0b1030);box-shadow:0 18px 44px rgba(11,16,48,.35)}
.hero .lbl{font-size:13px;letter-spacing:.08em;color:#b9bff0}
.hero-in{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.ring{--p:0;width:132px;height:132px;border-radius:50%;flex:none;display:grid;place-items:center;
  background:conic-gradient(var(--gold) calc(var(--p)*1%),rgba(255,255,255,.1) 0)}
.ring > div{width:108px;height:108px;border-radius:50%;background:#10164a;display:grid;place-items:center;text-align:center}
.ring b{font:800 34px/1 var(--num);font-variant-numeric:tabular-nums}
.ring span{display:block;font-size:12px;color:#b9bff0;margin-top:4px}
.calc{flex:1;min-width:220px}
.calc .eq{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 10px;font-size:15px;color:#d5d8fb}
.calc .eq b{font-size:22px;color:#fff;font-variant-numeric:tabular-nums}
.calc .eq .neg b{color:#ff9b9e}
.calc .eq .fin b{color:var(--gold);font-size:26px}
.gbadge{display:inline-flex;align-items:center;gap:6px;margin-top:12px;padding:6px 14px;border-radius:999px;background:linear-gradient(135deg,#ffe29a,var(--gold));color:#3a2600;font-weight:800}
.hero .warn{margin-top:12px;font-size:14px;color:#ffd38a}
.datesel{display:flex;gap:8px;overflow-x:auto;padding:2px 2px 10px;margin:0 0 6px;scrollbar-width:none}
.datesel::-webkit-scrollbar{display:none}
.datesel button{flex:none;padding:9px 14px;border-radius:14px;background:rgba(255,255,255,.1);color:#d8dbff;border:1px solid rgba(255,255,255,.14);font-weight:700;font-size:14px;text-align:left;line-height:1.3}
.datesel button small{display:block;font-weight:500;font-size:12px;color:#aeb4e8}
.datesel button.on{background:#fff;color:var(--night)}
.datesel button.on small{color:var(--mute)}
.big2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.bigb{position:relative;overflow:hidden;text-align:left;padding:24px 22px;border-radius:24px;background:var(--card);box-shadow:var(--sh);min-height:170px;display:flex;flex-direction:column;transition:transform .12s}
.bigb:active{transform:scale(.98)}
.bigb .ic{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;color:#fff;background:var(--g);box-shadow:0 8px 20px rgba(67,83,230,.25)}
.bigb .ic svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.bigb b{font-size:21px;margin-top:16px;letter-spacing:-.4px}
.bigb span{color:var(--mute);font-size:14px;margin-top:4px}
.bigb::after{content:"";position:absolute;right:-50px;bottom:-50px;width:170px;height:170px;border-radius:50%;background:var(--g);opacity:.08}

/* 단어 고르기 쟁반 */
.tray{position:sticky;bottom:96px;z-index:6;margin-top:6px;padding:14px;border-radius:20px;background:rgba(11,16,48,.94);color:#fff;box-shadow:0 14px 36px rgba(11,16,48,.35);backdrop-filter:blur(10px)}
.tray .tw{display:flex;flex-wrap:wrap;gap:6px;max-height:150px;overflow:auto}
.tchip{display:inline-flex;align-items:center;gap:6px;padding:6px 6px 6px 12px;border-radius:999px;background:rgba(255,255,255,.12);font-size:14px}
.tchip b{font-family:var(--en);font-size:15px}
.tchip input{width:110px;border:0;border-radius:8px;padding:4px 8px;background:rgba(255,255,255,.9);color:var(--ink);font-size:13px}
.tchip .x{width:26px;height:26px;border-radius:50%;background:rgba(255,255,255,.15);font-size:13px}
.tray .tb{display:flex;gap:10px;align-items:center;margin-top:10px}
.tray .tb .m{color:#b9bff0;font-size:14px}

/* 단어공부 */
.stat3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:16px}
.stat3 div{padding:14px 16px;border-radius:18px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.14);color:#fff}
.stat3 b{display:block;font:800 28px/1.1 var(--num)}
.stat3 span{font-size:13px;color:#c3c8f2}
.picker{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.picker button{min-width:58px;height:46px;border-radius:14px;background:#f1f2fa;font-weight:800;font-size:16px}
.picker button.on{background:var(--night);color:#fff}
.picker input{width:84px;height:46px;border-radius:14px;border:2px solid var(--line);text-align:center;font-weight:800;font-size:16px}
.seg{display:flex;gap:6px;background:#e6e8f5;padding:5px;border-radius:16px;margin-bottom:16px}
.seg button{flex:1;padding:12px 6px;border-radius:12px;font-weight:800;color:var(--mute);font-size:15px}
.seg button.on{background:#fff;color:var(--night);box-shadow:0 2px 8px rgba(16,22,49,.1)}
.wgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}
.wcard{padding:14px 16px;border-radius:16px;background:#f7f8fd;cursor:pointer;border:1px solid transparent;transition:.12s}
.wcard:active{transform:scale(.98)}
.wcard .ww{font:700 19px/1.3 var(--en)}
.wcard .wm{color:var(--mute);margin-top:4px;min-height:1.4em}
.wcard.hidden .wm{color:transparent;background:repeating-linear-gradient(90deg,#e4e7f3 0 10px,#eceef7 10px 20px);border-radius:6px}
.flash{max-width:560px;margin:0 auto;text-align:center}
.flash .prog{height:8px;border-radius:4px;background:#e6e8f5;overflow:hidden;margin-bottom:22px}
.flash .prog i{display:block;height:100%;background:linear-gradient(90deg,var(--violet),var(--sky));transition:width .3s}
.flash .q{font:800 42px/1.2 var(--en);letter-spacing:-.5px;margin:18px 0 6px;word-break:break-word}
.flash .q.ko{font:800 28px/1.35 "Pretendard","Apple SD Gothic Neo","Malgun Gothic",sans-serif}
.flash .qs{color:var(--mute);margin-bottom:22px}
.opts{display:grid;gap:10px;text-align:left}
.opts button{padding:16px 18px;border-radius:16px;background:#f5f6fc;border:2px solid transparent;font-size:17px;font-weight:600;min-height:56px;transition:.12s}
.opts button:active{transform:scale(.98)}
.opts button.right{background:var(--green-soft);border-color:var(--green);color:#075e48}
.opts button.wrong{background:var(--red-soft);border-color:var(--red);color:#a0161b}
.typein{display:flex;gap:8px}
.typein input{flex:1;min-width:0;height:56px;border-radius:16px;border:2px solid var(--line);padding:0 16px;font:700 20px var(--en);text-align:center}
.typein input.right{border-color:var(--green);background:var(--green-soft)}
.typein input.wrong{border-color:var(--red);background:var(--red-soft)}
.reveal{margin-top:14px;font-size:16px;color:var(--mute);min-height:1.5em}
.result-big{font:800 56px/1 var(--num);margin:10px 0}

/* 무덤 */
.grave{border-radius:26px;padding:22px;margin-top:22px;color:#d7dbef;
  background:radial-gradient(90% 70% at 50% 0%,#3a3f5c 0%,transparent 70%),linear-gradient(180deg,#22263a,#13151f);box-shadow:0 18px 40px rgba(0,0,0,.25)}
.grave h3{color:#fff;margin:0 0 4px;display:flex;align-items:center;gap:8px}
.grave .sub{color:#9aa0bd}
.stones{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:14px 12px;margin-top:16px;padding-bottom:10px;
  background:linear-gradient(transparent calc(100% - 14px),#2f3a2a calc(100% - 14px));border-radius:0 0 12px 12px}
.stone{position:relative;padding:20px 10px 14px;text-align:center;border-radius:60px 60px 10px 10px;cursor:pointer;
  background:linear-gradient(180deg,#8a8fa3,#5f6377);color:#1d2030;box-shadow:inset 0 -6px 0 rgba(0,0,0,.18),0 6px 12px rgba(0,0,0,.3);transition:.15s}
.stone:active{transform:translateY(2px)}
.stone .rip{font:800 11px/1 var(--en);letter-spacing:.2em;color:#2b2e3d;opacity:.7}
.stone .sw{font:700 16px/1.25 var(--en);margin-top:6px;color:#151724;word-break:break-word}
.stone .sm{font-size:12px;color:#2b2e3d;margin-top:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 필기 */
.compose textarea,.edit textarea{width:100%;min-height:110px;border-radius:16px;border:2px solid var(--line);padding:14px 16px;font-size:16px;line-height:1.6;resize:vertical;background:#fbfbfe}
.compose textarea:focus,.edit textarea:focus{border-color:var(--violet);outline:none;background:#fff}
.search{display:flex;align-items:center;gap:8px;padding:0 14px;height:52px;border-radius:16px;background:#fff;box-shadow:var(--sh);margin-bottom:12px}
.search svg{width:20px;height:20px;fill:none;stroke:var(--mute);stroke-width:2}
.search input{flex:1;border:0;outline:none;font-size:16px;background:transparent}
.ncard{position:relative;padding:16px 18px 16px 22px;border-radius:18px;background:var(--card);box-shadow:var(--sh);margin-bottom:10px;cursor:pointer;overflow:hidden}
.ncard::before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--imp,#d6d9ea)}
.ncard .nt{white-space:pre-wrap;line-height:1.6}
.ncard .nm{display:flex;gap:8px;align-items:center;margin-top:10px;font-size:13px;color:var(--mute)}
.ncard mark{background:rgba(245,185,66,.45);border-radius:3px;padding:0 1px}
.imp{display:inline-flex;align-items:center;gap:3px;padding:3px 10px;border-radius:999px;font-weight:800;font-size:13px;color:#fff;background:var(--imp)}
.lv1{--imp:#c3c8dd}.lv2{--imp:linear-gradient(180deg,#7c5cff,#4353e6)}.lv3{--imp:linear-gradient(180deg,#ff9f43,#f5b942)}.lv4{--imp:linear-gradient(180deg,#ff5e62,#e5484d)}
.ncard.lv2 .nt{font-size:17px}.ncard.lv3 .nt{font-size:18.5px;font-weight:600}.ncard.lv4 .nt{font-size:20px;font-weight:700}
.simbox{border-radius:16px;padding:14px 16px;background:#f6f5ff;border:1px solid #e2defc;margin:10px 0;white-space:pre-wrap}

/* 현황판 */
.kpis{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.kpi{padding:16px;border-radius:18px;background:#f6f7fc}
.kpi b{display:block;font:800 28px/1.1 var(--num);color:var(--night)}
.kpi span{font-size:13px;color:var(--mute)}
.kpi.warm{background:var(--gold-soft)} .kpi.warm b{color:var(--gold-ink)}
.tbar{display:flex;align-items:center;gap:10px;margin:8px 0}
.tbar .nm{width:104px;font-size:14px;flex:none}
.tbar .tr{flex:1;height:12px;border-radius:6px;background:#eceef7;overflow:hidden}
.tbar .tr i{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,var(--violet),var(--sky))}
.tbar .tr i.lo{background:linear-gradient(90deg,#ff8a8d,var(--red))}
.tbar .v{width:84px;text-align:right;font-size:13px;color:var(--mute);flex:none}
.hist{display:grid;gap:8px}
.hrow{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:14px;background:#f6f7fc}
.hrow .hd{width:52px;font-weight:800;font-variant-numeric:tabular-nums}
.hrow .hl{flex:1;min-width:0;font-size:14px;color:var(--mute);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hrow .hb{width:120px;height:8px;border-radius:4px;background:#e4e7f3;overflow:hidden;flex:none}
.hrow .hb i{display:block;height:100%;background:linear-gradient(90deg,var(--violet),var(--gold))}
.hrow .hs{width:56px;text-align:right;font:800 18px var(--num)}
.hrow .hg{width:50px;text-align:right}

/* 아래 탭(떠 있는 유리판) */
.tabs{position:fixed;left:50%;bottom:max(14px,env(safe-area-inset-bottom));transform:translateX(-50%);z-index:9;display:flex;gap:4px;padding:6px;
  width:min(720px,calc(100% - 24px));border-radius:24px;background:rgba(11,16,48,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:0 16px 40px rgba(11,16,48,.35);border:1px solid rgba(255,255,255,.08)}
.tabs button{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:9px 2px 8px;border-radius:18px;color:#9aa1d4;font-size:12.5px;font-weight:700;transition:.15s;min-height:58px}
.tabs svg{width:23px;height:23px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.tabs button.on{color:#fff;background:linear-gradient(135deg,rgba(124,92,255,.9),rgba(67,83,230,.9));box-shadow:0 6px 16px rgba(67,83,230,.45)}

/* 모달·토스트 */
.modal{position:fixed;inset:0;z-index:30;background:rgba(11,16,48,.55);backdrop-filter:blur(4px);display:flex;align-items:flex-start;justify-content:center;padding:24px;overflow:auto}
.modal-box{position:relative;width:min(860px,100%);background:#fff;border-radius:24px;padding:28px 24px;animation:up .25s}
.xbtn{position:absolute;right:10px;top:8px;width:44px;height:44px;font-size:20px;color:var(--mute)}
.toast{position:fixed;left:50%;bottom:110px;transform:translateX(-50%) translateY(20px);opacity:0;pointer-events:none;
  background:var(--night);color:#fff;padding:11px 20px;border-radius:999px;transition:.22s;z-index:50;font-weight:600;box-shadow:0 10px 30px rgba(11,16,48,.3)}
.toast.on{opacity:1;transform:translateX(-50%)}
.q .stem{font-weight:700;margin:4px 0 12px}
.q .instr{color:var(--mute);margin-bottom:8px}
.q p{margin:0 0 10px;font-family:var(--en);font-size:18px;line-height:1.8}
.q .box{border:1px solid #d9d2bd;border-radius:12px;padding:12px 14px;margin:0 0 10px;background:#fffaf0;font-family:var(--en)}
.q img{max-width:100%;border-radius:8px}
.chs{display:grid;gap:8px;margin-top:14px}
.chs button{display:flex;gap:10px;text-align:left;padding:13px 15px;border-radius:14px;border:2px solid var(--line);background:#fff;min-height:50px}
.chs button.right{border-color:var(--green);background:var(--green-soft)}
.chs button.wrong{border-color:var(--red);background:var(--red-soft)}
.chs .cn{font-weight:800;color:var(--indigo)}
.explain{margin-top:14px;padding:14px 16px;border-radius:14px;background:#f6f7fc;white-space:pre-wrap}
audio{width:100%;margin:6px 0 10px}

@media (max-width:700px){
  main{padding:16px 12px 120px}
  .big2{grid-template-columns:1fr}
  .stat3 b{font-size:22px}
  .paper{padding:20px 18px}
  .psg{font-size:17.5px}
  .tabs span{font-size:11px}
  .dday,.lesson-label{display:none}
  .hrow .hb{display:none}
  .hrow .hg{width:auto}
  .hrow .hl{font-size:13px}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}

.psg .chs.row{display:flex;flex-wrap:wrap;gap:6px 18px}
.grave h3 svg{width:22px;height:22px;fill:none;stroke:#cfd3ea;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}