:root{
  --accent:#D72F57; --accent-ink:#B8153E;
  --ink:#1E1E22; --ink2:#55555E; --ink3:#8A8A93; --line:#E7E7EA;
  --pink:#FFDAD3; --yellow:#FFF0BF; --green:#D8EEDE; --lav:#E4DDFA;
  --field:#F7F7F8;
  --low:#C81E2B; --mid:#9A5B07; --high:#1E8C47;
  --radius:22px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:#fff;color:var(--ink);
  font-family:"Pretendard","Noto Sans KR","Noto Sans Thai",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  -webkit-font-smoothing:antialiased;word-break:keep-all;overflow-wrap:anywhere}
button,input,select,textarea{font:inherit;color:inherit}
.shell{max-width:470px;margin:0 auto;min-height:100vh;border-left:1px solid var(--line);border-right:1px solid var(--line);padding:0 16px 110px;background:#fff}
.top{position:sticky;top:0;z-index:20;background:#fff;padding:14px 0 10px}
.top-row{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:44px}
.top h1{font-size:20px;font-weight:800;letter-spacing:-.4px;margin:0}
.top .tag{font-size:13px;color:var(--ink2)}
.lang{appearance:none;-webkit-appearance:none;border:1px solid #CFCFD4;border-radius:999px;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%23333' stroke-width='1.6'/%3E%3C/svg%3E") no-repeat right 12px center;padding:9px 34px 9px 16px;font-size:14px;font-weight:600;cursor:pointer}
.lang:focus-visible,.btn:focus-visible,.opt:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.progress{display:flex;gap:4px;margin-top:6px}
.seg{flex:1;height:5px;border-radius:5px;background:#EEEEF0;overflow:hidden}
.seg.cur{background:#D9D9DD}
.seg i{display:block;height:100%;background:var(--accent);border-radius:5px;transition:width .25s}
.counts{display:flex;justify-content:space-between;font-size:13px;color:var(--ink2);margin-top:8px}
.counts b{color:var(--ink)}

/* hero */
.hero{position:relative;overflow:hidden;background:#FFD6CE;border-radius:var(--radius);padding:30px 22px 32px;margin-top:4px}
.hero:before{content:"";position:absolute;right:-28px;top:-28px;width:120px;height:120px;border-radius:50%;background:#FFF0B4}
.hero:after{content:"";position:absolute;right:38px;bottom:-56px;width:92px;height:92px;border-radius:50%;background:#D6EFDA}
.hero>*{position:relative;z-index:1}
.kicker{font-size:12px;font-weight:700;color:var(--accent-ink)}
.hero h2{font-size:29px;font-weight:800;letter-spacing:-.8px;margin:12px 0 12px;line-height:1.25}
.hero p{margin:0;color:#5D5450;font-size:14.5px;line-height:1.7;max-width:360px}

.card{background:#fff;border-radius:var(--radius);padding:22px 16px 20px;margin-top:18px;box-shadow:0 6px 22px rgba(30,30,40,.08)}
.card h3{font-size:17px;font-weight:800;margin:0 0 18px;letter-spacing:-.3px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px 12px}
label.f{display:block;font-size:13px;font-weight:700;margin-bottom:8px}
.inp{width:100%;height:46px;border:1px solid #E3E3E6;background:var(--field);border-radius:10px;padding:0 14px;font-size:15px}
select.inp{appearance:none;-webkit-appearance:none;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%23333' stroke-width='1.6'/%3E%3C/svg%3E") no-repeat right 12px center;padding-right:30px;border-color:#D4D4D8}
.hint{font-size:12px;color:var(--ink2);margin-top:6px}
.note{font-size:12.5px;color:var(--ink2);margin-top:14px;line-height:1.6}
.err{font-size:13px;color:#C8102E;margin:10px 0 0}
.btns{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.btn{border:0;border-radius:999px;padding:12px 20px;font-size:14.5px;font-weight:700;cursor:pointer;background:#EDEDEF;color:var(--ink);transition:transform .05s,filter .15s}
.btn:active{transform:scale(.98)}
.btn.pri{background:var(--accent);color:#fff}
.btn.pri:hover{filter:brightness(1.05)}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.btn.wide{flex:1}
.btn.sm{padding:8px 14px;font-size:13px}
a.btn{display:inline-block;text-decoration:none}
.btn.ghost{background:transparent;border:1px solid #D4D4D8}
.btn.danger{background:#FCE7EA;color:#B0102C}
.welcome .who{font-size:15px;font-weight:700;margin:2px 0 4px}
.notice{background:#FFF3D6;border-radius:12px;padding:13px 16px;font-size:13.5px;line-height:1.6;color:#4A3B12}
.notice.ok{background:#DFF3E4;color:#174D2B}
.notice.bad{background:#FCE7EA;color:#7A1022}

/* stage intro */
.intro{display:flex;align-items:center;gap:14px;margin:18px 0 16px}
.ring{flex:none;width:68px;height:68px;border-radius:50%;padding:3px;background:conic-gradient(from 200deg,#7B5CF0,#D72F57,#F59E0B,#FCD34D,#7B5CF0)}
.ring span{display:flex;align-items:center;justify-content:center;width:100%;height:100%;border-radius:50%;background:#fff;font-weight:800;font-size:20px}
.ring.sm{width:40px;height:40px;padding:2px}
.ring.sm span{font-size:14px}
.intro small{display:block;font-size:12px;color:var(--ink2)}
.intro b{display:block;font-size:17px;font-weight:800;letter-spacing:-.3px;margin:2px 0}
.intro em{font-style:normal;font-size:13px;color:var(--ink2)}

.q{border-radius:var(--radius);padding:20px 18px 14px;margin-bottom:12px;scroll-margin-top:150px;transition:box-shadow .2s}
.q.c0{background:var(--pink)}.q.c1{background:var(--yellow)}.q.c2{background:var(--green)}.q.c3{background:var(--lav)}
.q.miss{box-shadow:0 0 0 2px var(--accent) inset}
.q p{margin:0 0 16px;font-size:16.5px;font-weight:700;line-height:1.65;letter-spacing:-.3px}
.num{display:inline-flex;align-items:center;justify-content:center;min-width:25px;height:25px;padding:0 6px;border-radius:999px;background:#fff;font-size:12px;font-weight:800;margin-right:8px;vertical-align:2px}
.opts{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.opt{height:46px;border:0;border-radius:999px;background:#fff;font-size:16px;font-weight:800;cursor:pointer;transition:background .12s,color .12s}
.opt.on{background:var(--accent);color:#fff}
.anchors{display:flex;justify-content:space-between;font-size:11px;color:var(--ink2);margin-top:12px}
.navrow{display:flex;gap:8px;margin-top:22px}
.navrow .btn{flex:1;padding:14px}

/* result */
.res-head{display:flex;align-items:center;gap:14px;margin-top:22px}
.big-ring{flex:none;width:92px;height:92px;border-radius:50%;padding:4px;background:conic-gradient(from 200deg,#7B5CF0,#D72F57,#F59E0B,#FCD34D,#7B5CF0)}
.big-ring span{display:flex;align-items:center;justify-content:center;width:100%;height:100%;border-radius:50%;background:#fff;font-weight:800;font-size:24px}
.stats{flex:1;display:grid;grid-template-columns:repeat(3,1fr);text-align:center;gap:4px}
.stats b{display:block;font-size:16px;font-weight:800}
.stats small{font-size:11px;color:var(--ink2)}
.res-kicker{font-size:12.5px;color:var(--ink2);margin-top:18px}
.res-title{font-size:23px;font-weight:800;letter-spacing:-.6px;margin:6px 0 8px;line-height:1.35}
.res-meta{font-size:12.5px;color:var(--ink2)}
.box{border-radius:var(--radius);padding:20px 18px;margin-top:18px}
.box.pink{background:var(--pink)}.box.yellow{background:var(--yellow)}.box.green{background:var(--green)}.box.lav{background:var(--lav)}
.box h4{font-size:16.5px;font-weight:800;margin:0 0 8px;letter-spacing:-.3px}
.box .sub{font-size:13px;color:#6A5F5C;margin:0 0 14px;line-height:1.6}
.weak{background:#fff;border-radius:16px;padding:16px 14px 16px 52px;position:relative;margin-top:10px}
.weak .no{position:absolute;left:14px;top:16px;width:26px;height:26px;border-radius:50%;background:var(--accent);color:#fff;font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center}
.weak .meta{font-size:12px;color:var(--ink2)}
.weak .qq{font-size:15px;font-weight:800;margin:6px 0 10px;line-height:1.55}
.real{background:#FFF0B3;border-radius:8px;padding:10px 12px;font-size:13.5px;font-weight:700;line-height:1.65}
.weak .adv{font-size:13.5px;line-height:1.7;margin-top:10px;color:#2B2B30}
.lab{font-size:12px;font-weight:700;color:var(--accent-ink);margin-bottom:8px}
.lab.brown{color:#7A4E00}
.focus h4{font-size:17px}
.focus p{margin:0;font-size:14.5px;line-height:1.7}
.focus .fn{font-size:12.5px;color:var(--ink2);margin-top:10px;line-height:1.6}
.radar{display:block;width:100%;max-width:360px;margin:6px auto 4px}
.bars{margin-top:8px}
.bar{display:grid;grid-template-columns:104px 1fr 34px;align-items:center;gap:8px;font-size:13px;margin:10px 0}
.bar .tr{height:7px;border-radius:7px;background:#EDEDF0;overflow:hidden}
.bar .tr i{display:block;height:100%;border-radius:7px}
.bar b{text-align:right;font-weight:800}
.legend{font-size:12px;color:var(--ink2);margin-top:10px}
.sec-title{font-size:17px;font-weight:800;margin:30px 0 4px}
.stage-h{display:flex;align-items:center;gap:10px}
.stage-h .tt{flex:1;min-width:0}
.stage-h .tt b{display:block;font-size:16px;font-weight:800}
.stage-h .tt small{font-size:12px;color:var(--ink2)}
.badge{flex:none;font-size:12px;font-weight:800;padding:5px 10px;border-radius:999px;white-space:nowrap}
.badge.low{background:#FFE6EA;color:var(--low)}.badge.mid{background:#FFF4D6;color:var(--mid)}.badge.high{background:#DFF3E4;color:var(--high)}
.interp{font-size:14.5px;line-height:1.7;margin:14px 0 6px}
.it{display:grid;grid-template-columns:38px 1fr;gap:0 8px;margin-top:14px}
.it .code{width:30px;height:30px;border-radius:50%;background:#fff;font-size:10.5px;font-weight:800;display:flex;align-items:center;justify-content:center}
.it .m{font-size:12px;color:var(--ink2);line-height:1.5}
.it .a{font-size:14px;line-height:1.7;margin-top:2px}
.none{color:var(--high);font-size:13.5px;margin-top:12px}
.disc{font-size:12.5px;color:var(--ink2);line-height:1.65;margin-top:22px}
.copybox{width:100%;min-height:160px;margin-top:10px;border:1px solid var(--line);border-radius:10px;padding:10px;font-size:12px}

/* bottom nav */
.nav{position:fixed;left:0;right:0;bottom:0;z-index:30;background:#fff;border-radius:22px 22px 0 0;box-shadow:0 -4px 20px rgba(0,0,0,.06);display:flex;justify-content:center;gap:0;padding:10px 0 calc(10px + env(safe-area-inset-bottom))}
.nav button{background:none;border:0;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:11px;font-weight:600;color:#55555E;width:180px}
.nav button svg{width:24px;height:24px}
.nav button.on{color:var(--accent-ink)}

/* teacher */
.t-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:14px}
.t-stat{background:var(--field);border-radius:14px;padding:12px 8px;text-align:center}
.t-stat b{display:block;font-size:19px;font-weight:800}
.t-stat small{font-size:11.5px;color:var(--ink2)}
.filters{display:grid;grid-template-columns:1fr 1fr 1.3fr;gap:8px;margin-top:14px}
.filters .inp{height:40px;font-size:13.5px}
.row{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px 14px;margin-top:8px;cursor:pointer;width:100%;text-align:left}
.row:hover{border-color:#C9C9CF}
.row .info{flex:1;min-width:0}
.row .info b{display:block;font-size:14.5px}
.row .info small{display:block;font-size:12px;color:var(--ink2);margin-top:2px}
.row .flag{font-size:11px;font-weight:800;color:#7A4E00;background:var(--yellow);padding:3px 8px;border-radius:999px;margin-left:6px}
.empty{text-align:center;color:var(--ink2);font-size:14px;padding:30px 10px}
.linkbtn{background:none;border:0;color:var(--ink2);font-size:12.5px;text-decoration:underline;cursor:pointer;padding:4px}
.toast{position:fixed;left:50%;bottom:96px;transform:translateX(-50%);background:#222;color:#fff;font-size:13px;padding:10px 16px;border-radius:999px;z-index:50;opacity:0;transition:opacity .2s;pointer-events:none;max-width:90vw;text-align:center}
.toast.show{opacity:1}
.confirm{background:#FCE7EA;border-radius:14px;padding:14px;margin-top:12px;font-size:13.5px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
@media (max-width:380px){.hero h2{font-size:25px}.bar{grid-template-columns:86px 1fr 30px}.stats b{font-size:14px}}
@media print{.nav,.top .lang,.btns,.toast{display:none!important}.shell{border:0}}