@font-face{font-family:'Pretendard';src:url(/cogo-static-v25-r1/9599f12fd42fc0bce1cd50b47a0c022e108d7aa64dd0d1bb0ed44f3282d900b4.woff2) format('woff2');font-weight:100 900;font-style:normal;font-display:swap;}
:root{--blue:#4161ef;--blue-soft:#edf1ff;--ink:#1a2442;--muted:#758099;--line:#e6eaf2;--surface:#fff;--bg:#f6f8fc;--nav:#17203a;--pink:#ed77a5;--radius:22px;--side:204px;--tutor:310px;color-scheme:light}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 'Pretendard','Noto Sans KR','Apple SD Gothic Neo','Malgun Gothic',sans-serif;word-break:keep-all}button,input,select,textarea{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button{border:0;background:none;color:inherit}button:disabled{cursor:not-allowed;opacity:.55}a{color:inherit;text-decoration:none}button,a,input,select,textarea{outline-offset:4px}button:focus-visible,a:focus-visible{outline:3px solid #7491ff}button:hover:not(:disabled){filter:brightness(.98)}img{max-width:100%;display:block}h1,h2,h3,h4,p{margin:0}h1,h2,h3{line-height:1.3;letter-spacing:-.035em}h1{font-size:1.875rem;font-weight:800}h2{font-size:1.3125rem;font-weight:760}h3{font-size:1.125rem}p{line-height:1.7}small,.small{font-size:0.875rem}.muted{color:var(--muted)}.eyebrow{font-size:0.8125rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.flex{display:flex;align-items:center;gap:12px}.between{justify-content:space-between}.wrap{flex-wrap:wrap}.gap8{gap:8px}.icon{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.btn{display:inline-flex;gap:8px;justify-content:center;align-items:center;min-height:44px;padding:10px 18px;border-radius:11px;background:var(--blue);color:#fff;font-weight:700;font-size:0.9375rem;transition:transform .18s,box-shadow .18s}.btn:hover{transform:translateY(-2px);box-shadow:0 6px 18px #4161ef26}.btn.white{background:#fff;color:var(--ink)}.btn.ghost{background:var(--blue-soft);color:var(--blue)}.btn.outline{background:transparent;border:1px solid var(--line);color:var(--ink)}.btn.dark{background:var(--nav)}.btn.full{width:100%}.icon-btn{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;flex-shrink:0}.icon-btn:hover{background:var(--blue-soft)}.badge{display:inline-flex;align-items:center;gap:5px;border-radius:6px;background:var(--blue-soft);color:var(--blue);padding:3px 8px;font-size:0.8125rem;font-weight:750;white-space:nowrap}.badge.pink{background:#ffedf4;color:#ad3e70}.badge.gold{background:#fff5da;color:#926715}.badge.green{background:#e9f7f0;color:#238765}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}.section-head{display:flex;align-items:center;justify-content:space-between;gap:15px;margin:30px 0 15px}.text-btn{font-size:0.9375rem;font-weight:650;color:var(--muted)}.text-btn:hover{color:var(--blue)}.progress{height:7px;border-radius:10px;background:var(--line);overflow:hidden}.progress>span{height:100%;display:block;background:var(--blue);border-radius:inherit;transition:width .35s}input,select{min-height:44px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:10px;padding:10px 12px;min-width:0}textarea{resize:vertical}.empty{padding:45px 20px;text-align:center;color:var(--muted)}.empty .icon{width:40px;height:40px;margin-bottom:12px}.divider{height:1px;background:var(--line);margin:20px 0}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.skip{position:fixed;top:-60px;left:220px;z-index:200;background:white;padding:10px}.skip:focus{top:10px}
.sidebar{position:fixed;inset:0 auto 0 0;width:var(--side);background:var(--nav);color:#a9b4cd;padding:24px 15px;display:flex;flex-direction:column;z-index:35}.logo{font-family:'Pretendard',Arial,sans-serif;letter-spacing:-4px;font-size:2.625rem;font-weight:900;line-height:1;color:var(--blue);padding:0 4px}.sidebar .logo{color:#fff;text-align:left;margin:8px 12px 28px}.logo em{font-style:normal;color:#fa91b7}.logo-label{font-size:0.75rem;letter-spacing:2px;color:#8190b5;margin-left:4px}.nav-caption{font-size:0.75rem;letter-spacing:.12em;font-weight:700;margin:12px 14px}.nav-item{display:flex;align-items:center;gap:12px;padding:12px 14px;font-size:0.9375rem;font-weight:650;border-radius:11px;margin:3px 0;text-align:left;width:100%;position:relative;transition:background .2s}.nav-item.active{color:#fff;background:#344776}.nav-item.active:before{content:'';width:4px;height:18px;border-radius:3px;background:#95adff;position:absolute;left:-15px}.nav-item:hover{background:#ffffff0c;color:white}.nav-item .badge{margin-left:auto;font-size:0.75rem;padding:1px 5px;background:#ffffff1a;color:#ccd7ff}.side-bottom{margin-top:auto;padding-top:22px}.side-quote{margin:15px 5px;background:#263352;border:1px solid #3e4c6b;border-radius:16px;padding:15px;font-size:0.8125rem;position:relative;overflow:hidden}.side-quote p{color:#ced6ec;font-size:0.875rem;margin:7px 0 13px}.side-quote .btn{font-size:0.8125rem;min-height:34px;background:#ec90b6;color:#30213b;padding:6px 10px;width:100%}.side-bottom .text-btn{color:#a9b4cd;font-size:0.8125rem;padding:8px 10px}.shell{margin-left:var(--side);margin-right:var(--tutor);transition:margin .25s}.tutor-hidden .shell{margin-right:0}.topbar{height:75px;position:sticky;top:0;background:#f6f8fcf2;backdrop-filter:blur(16px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 30px;z-index:25}.breadcrumb{font-size:0.9375rem;color:var(--muted)}.breadcrumb strong{color:var(--ink);font-weight:650}.demo-switch{display:flex;align-items:center;gap:5px;font-size:0.8125rem;border:1px solid var(--line);padding:5px 8px;border-radius:8px;background:white}.demo-switch select{font-size:0.8125rem;min-height:25px;padding:0 18px 0 3px;border:0;background:none}.coin{font-size:0.875rem;font-weight:800;color:#886120;display:flex;align-items:center;gap:6px}.coin-circle{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;background:#ffda73;border:2px solid #f0c45f;font-size:0.75rem;font-weight:900}.avatar{width:35px;height:35px;border-radius:50%;background:#dfe6ff;overflow:hidden}.avatar img{width:52px;max-width:none;transform:translate(-8px,0)}.mobile-logo,.mobile-menu{display:none}.content{max-width:1280px;margin:auto;padding:28px 30px 36px;min-height:calc(100dvh - 75px)}.page{animation:enter .3s both}.welcome{margin-bottom:23px}.welcome p{font-size:0.9375rem;color:var(--muted);margin-top:6px}.tiny-label{font-size:0.75rem;color:var(--muted);letter-spacing:.04em}.hero{position:relative;min-height:263px;border-radius:23px;background:#263f9e;color:white;overflow:hidden;padding:29px 30px;isolation:isolate}.hero:before{content:'';position:absolute;width:460px;height:460px;border:1px solid #ffffff13;border-radius:50%;right:-50px;top:-210px;z-index:-1}.hero:after{content:'';position:absolute;width:330px;height:330px;border:1px solid #ffffff16;border-radius:50%;right:15px;top:-145px;z-index:-1}.hero-tag{display:inline-flex;padding:4px 10px;border-radius:20px;background:#ffffff16;color:#d6e1ff;font-size:0.8125rem;font-weight:650;letter-spacing:.02em}.hero h2{font-size:clamp(29px,2.7vw,39px);line-height:1.2;letter-spacing:-.04em;margin:13px 0 12px;position:relative;z-index:2}.hero h2 span{color:#b4cdff}.hero p{font-size:0.9375rem;color:#d2dcfa;position:relative;z-index:2;max-width:290px}.hero .btn{margin-top:22px;position:relative;z-index:3;background:#fff;color:#293a75}.hero-art{position:absolute;right:7px;bottom:0;width:44%;height:240px;pointer-events:none}.hero-art img{position:absolute;object-fit:contain;filter:drop-shadow(0 12px 16px #15234945)}.hero-art .blue{width:67%;bottom:5px;left:-3%;transform:rotate(-9deg);animation:bob 5s ease-in-out infinite}.hero-art .pink{width:62%;right:-3%;bottom:13px;transform:rotate(9deg);animation:bob 6s ease-in-out infinite reverse}.hero-art .orbit{position:absolute;right:5%;top:15px;transform:rotate(10deg);border-radius:10px;padding:5px 11px;border:1px solid #ffffff3d;background:#ffffff13;color:#e2eaff;font:700 22px/1.2 monospace}.hero-art .star{position:absolute;left:24%;top:14px;color:#ffda75;font-size:1.875rem}.hero-footer{margin-top:17px;font-size:0.75rem;color:#aebeef}.subjects{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:9px;margin:22px 0 28px}.subject{border:1px solid var(--line);background:white;border-radius:15px;padding:14px 4px 11px;display:flex;flex-direction:column;align-items:center;gap:6px;transition:transform .2s,border .2s;position:relative}.subject:hover{transform:translateY(-5px);border-color:var(--blue)}.subject .symbol{width:39px;height:39px;border-radius:12px;display:grid;place-items:center;font-size:1.25rem;font-weight:800;background:var(--tint);color:var(--color)}.subject b{font-size:0.875rem}.subject small{font-size:0.75rem;color:var(--muted)}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}.course{position:relative;padding:21px;overflow:hidden;min-height:178px;transition:transform .2s,box-shadow .2s;text-align:left}.course:hover{transform:translateY(-3px);box-shadow:0 10px 25px #243b7710}.course h3{font-size:1.125rem;margin:12px 0 6px;max-width:75%;position:relative;z-index:1}.course p{font-size:0.875rem;color:var(--muted);max-width:68%}.course .course-img{position:absolute;width:94px;height:105px;object-fit:contain;right:4px;bottom:35px;opacity:.95}.course-meta{display:flex;align-items:center;gap:10px;font-size:0.8125rem;font-weight:600;color:var(--blue);margin-top:22px}.mission{padding:21px;display:flex;align-items:center;gap:17px;margin-top:15px}.mission-icon{width:48px;height:48px;border-radius:15px;background:#fff4d5;color:#bd8c19;display:grid;place-items:center}.mission-body{flex:1}.mission h3{font-size:1rem}.mission p{font-size:0.8125rem;color:var(--muted);margin:3px 0 10px}.mission .progress{height:6px}.mission .badge{font-size:0.8125rem}.split-heading{display:flex;align-items:end;justify-content:space-between;gap:20px}.mini-promote{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:21px 24px;border-radius:18px;background:#eaf0ff;margin-top:25px}.mini-promote h3{font-size:1.0625rem}.mini-promote p{font-size:0.875rem;color:#5c6e9b;margin-top:4px}.mini-promote .btn{flex-shrink:0}.page-footer{border-top:1px solid var(--line);margin-top:32px;padding-top:20px;display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:0.75rem;flex-wrap:wrap}.page-footer button{font-size:0.75rem}.footer-note{max-width:650px;line-height:1.6}
.tutor{position:fixed;inset:0 0 0 auto;width:var(--tutor);background:white;border-left:1px solid var(--line);z-index:40;display:flex;flex-direction:column;transition:transform .25s}.tutor-hidden .tutor{transform:translateX(100%)}.tutor-top{height:75px;display:flex;align-items:center;gap:9px;padding:0 18px;border-bottom:1px solid var(--line);flex-shrink:0}.tutor-avatar{width:35px;height:35px;overflow:hidden;border-radius:11px;background:#ffe6f0}.tutor-avatar img{width:39px;max-width:none}.tutor-top strong{font-size:0.9375rem}.tutor-top small{font-size:0.75rem;color:var(--muted);display:block;line-height:1.3}.tutor-top .icon-btn{margin-left:auto;width:30px;height:30px}.tutor-body{padding:20px 18px;flex:1;overflow:auto;overscroll-behavior:contain}.tutor-greeting{padding:10px 0 18px}.tutor-greeting .eyebrow{color:#b06392;font-size:0.75rem}.tutor-greeting h2{font-size:1.375rem;margin-top:8px;line-height:1.5}.tutor-greeting>img{width:158px;height:150px;object-fit:contain;margin:19px auto 3px}.tutor-greeting p{font-size:0.875rem;color:var(--muted);margin-top:12px}.tutor-context{background:var(--bg);border:1px solid var(--line);padding:11px;border-radius:12px;font-size:0.8125rem;margin-bottom:16px}.tutor-context strong{display:block;font-size:0.875rem;margin-top:4px}.tutor-perks{padding:0;margin:14px 0 22px;list-style:none;font-size:0.875rem;display:grid;gap:13px}.tutor-perks li{display:flex;align-items:center;gap:9px}.tutor-perks .icon{width:17px;height:17px;color:var(--blue)}.tutor-lock{background:#f7f3fb;padding:17px;border-radius:16px;text-align:center;margin-top:20px}.tutor-lock strong{font-size:0.9375rem}.tutor-lock p{font-size:0.8125rem;color:var(--muted);margin:7px 0 13px}.tutor-lock .btn{font-size:0.8125rem}.tutor-disclaimer{font-size:0.75rem!important;color:#8b93a7!important;margin-top:14px!important}.chat-message{border-radius:14px;background:var(--bg);border:1px solid var(--line);padding:13px;margin:12px 0;font-size:0.875rem;white-space:pre-wrap;word-break:break-word;line-height:1.8}.chat-message.user{margin-left:30px;background:var(--blue);color:white;border:0}.chat-message .speaker{display:block;font-size:0.75rem;color:var(--blue);font-weight:800;margin-bottom:5px}.chat-chips{display:flex;gap:7px;flex-wrap:wrap;margin-top:12px}.chat-chips button{font-size:0.8125rem;border:1px solid #dce3fb;border-radius:8px;padding:6px 9px;color:#4e65b3;background:white}.tutor-compose{padding:13px 17px 18px;border-top:1px solid var(--line);background:white}.composer{display:flex;align-items:end;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:8px;gap:5px}.composer textarea{font-size:0.875rem;line-height:1.6;border:0;background:transparent;width:100%;height:44px;max-height:100px;outline:none;padding:2px;resize:none}.composer button{background:var(--blue);color:#fff;width:32px;height:32px;border-radius:8px;display:grid;place-items:center;flex-shrink:0}.composer .icon{width:18px;height:18px}.tutor-usage{font-size:0.75rem;display:flex;justify-content:space-between;margin-bottom:8px;color:var(--muted)}.tutor-toggle{color:var(--blue)}.bottom-nav{display:none}.scrim{display:none}
.filters{padding:18px;margin:20px 0}.filter-top{display:flex;gap:10px}.search-wrap{flex:1;position:relative}.search-wrap .icon{position:absolute;left:12px;top:12px;color:var(--muted);width:20px;height:20px}.search-wrap input{width:100%;padding-left:41px}.tabs{display:flex;gap:7px;flex-wrap:wrap;margin-top:15px}.tab{font-size:0.875rem;padding:7px 13px;border-radius:8px;color:var(--muted)}.tab.active{background:var(--blue);color:#fff;font-weight:700}.tab:not(.active){background:var(--bg)}.problem-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.problem-card{padding:20px;text-align:left;position:relative;transition:transform .2s,border .2s}.problem-card:hover{transform:translateY(-3px);border-color:#a6b5ff}.problem-card h3{margin:14px 0 8px;font-size:1.0625rem}.problem-card p{font-size:0.875rem;color:var(--muted)}.problem-card .meta{margin-top:19px;display:flex;justify-content:space-between;font-size:0.8125rem;color:var(--muted)}.bookmark{position:absolute;right:13px;top:13px;color:#a1abc1}.bookmark.saved{color:#df9b1f}.problem-card .open-card{display:block;text-align:left;width:100%;padding:0}.solver-head{margin-bottom:20px}.back-btn{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:0.875rem;margin-bottom:18px;padding:0}.back-btn .icon{width:16px;height:16px}.question-panel{padding:27px}.question-panel h2{font-size:1.4375rem;margin:14px 0 22px}.passage{padding:20px 22px;background:var(--bg);border-left:3px solid #c1cdf5;border-radius:3px 12px 12px 3px;margin-bottom:22px;font-size:1rem;line-height:1.9;white-space:pre-wrap}.question-text{font-size:1.0625rem;font-weight:650;line-height:1.8;margin-bottom:20px}.answers{display:grid;gap:10px}.answer{border:1px solid var(--line);padding:14px;text-align:left;display:flex;align-items:center;gap:12px;border-radius:12px;font-size:1rem;background:#fff}.answer .num{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--bg);color:var(--muted);font-size:0.8125rem;flex-shrink:0}.answer.selected{border-color:var(--blue);background:var(--blue-soft);color:var(--blue)}.answer.selected .num{background:var(--blue);color:white}.answer.correct{border-color:#42b88c;background:#ebfaf4;color:#207b5d}.answer.wrong{border-color:#e48c9e;background:#fff0f4;color:#b34462}.question-actions{margin-top:25px;display:flex;gap:10px;align-items:center;justify-content:space-between}.result-box{padding:20px;border-radius:15px;margin-top:24px;border:1px solid #b5decf;background:#effaf5}.result-box.wrong{background:#fff5f0;border-color:#efcdb8}.result-box h3{margin-bottom:9px}.result-box p{font-size:0.9375rem;white-space:pre-wrap}.number-answer{width:100%;max-width:320px}.lab-layout{display:grid;grid-template-columns:minmax(220px,.8fr) minmax(300px,1.2fr);gap:15px}.lab-story{padding:21px}.lab-story h2{font-size:1.375rem;margin:10px 0 18px}.lab-story p{font-size:0.9375rem;white-space:pre-wrap}.lab-story h4{font-size:0.875rem;margin:23px 0 8px}.code-sample{padding:12px;background:var(--bg);border:1px solid var(--line);border-radius:9px;font:13px/1.7 ui-monospace,'Pretendard',monospace;white-space:pre-wrap}.editor{background:#1b243b;border-radius:17px;overflow:hidden;border:1px solid #2d3854;color:#c5d2ea}.editor-toolbar{display:flex;align-items:center;justify-content:space-between;padding:11px 14px;border-bottom:1px solid #36415b;background:#212c46;gap:10px}.editor-toolbar select{background:#2f3b57;border-color:#40506d;color:#fff;min-height:32px;padding:3px 9px;font-size:0.8125rem}.editor-toolbar span{font-size:0.8125rem}.code-wrap{display:flex;min-height:250px}.line-numbers{padding:19px 11px 0 14px;font:13px/1.8 ui-monospace,'Pretendard',monospace;text-align:right;color:#697b9d;white-space:pre;min-width:38px}.code-input{min-width:0;flex:1;resize:vertical;border:0;background:transparent;outline:none;padding:19px 13px 19px 0;color:#dae6ff;font:13px/1.8 ui-monospace,SFMono-Regular,Consolas,'Pretendard',monospace;tab-size:4;white-space:pre;min-height:250px}.editor-bottom{padding:13px;border-top:1px solid #36415b;display:flex;justify-content:space-between;align-items:center;gap:9px}.editor-bottom label{font-size:0.75rem}.editor-bottom select{min-height:30px;padding:3px;font-size:0.75rem;background:#2e3b56;color:white;border:0}.editor-bottom .btn{font-size:0.8125rem;padding:8px 12px;min-height:36px}.console{margin-top:15px;padding:20px;min-height:155px}.console h3{font-size:0.9375rem}.console-output{margin-top:12px;font:12px/1.9 ui-monospace,'Pretendard',monospace;white-space:pre-wrap;word-break:break-word;color:var(--muted)}.notice{padding:12px 15px;border-radius:10px;background:var(--blue-soft);color:#5265a0;font-size:0.8125rem;line-height:1.8;margin:16px 0}.lab-mobile-tabs{display:none}.lab-tools{display:flex;gap:10px;margin-bottom:18px;flex-wrap:wrap}.lab-tools select{font-size:0.875rem;flex:1;max-width:400px}.lab-tools .text-btn{font-size:0.8125rem}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0}.stat{padding:22px}.stat strong{display:block;font-size:2.0625rem;letter-spacing:-1px;margin:8px 0 0;line-height:1.2}.stat span{font-size:0.8125rem;color:var(--muted)}.report-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:17px}.report-chart{padding:24px}.bar-row{display:grid;grid-template-columns:36px 1fr 35px;align-items:center;gap:12px;font-size:0.8125rem;margin-top:17px}.bar-row .progress{height:10px}.records{padding:23px;margin-top:18px}.record{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);font-size:0.875rem}.record:last-child{border:0}.record .icon{color:var(--blue);width:19px}.record .record-name{flex:1}.record .record-name small{display:block;color:var(--muted);font-size:0.75rem}.record button{font-size:0.8125rem;color:var(--blue)}.collection-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:25px;background:#eaf0ff;border-radius:22px;margin:23px 0}.collection-header img{width:110px;height:105px;object-fit:contain}.collection-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.collect-card{padding:16px;text-align:center;position:relative}.collect-card img{height:135px;margin:7px auto 12px;object-fit:contain}.collect-card h3{font-size:0.9375rem}.collect-card p{font-size:0.75rem;color:var(--muted);margin:5px 0 14px}.collect-card .btn{font-size:0.8125rem;width:100%;min-height:35px;padding:7px}.collect-card.selected{border-color:var(--blue);box-shadow:0 0 0 1px var(--blue)}.shop-hero{background:#fff0f5;border-radius:23px;padding:28px;position:relative;overflow:hidden;margin:22px 0}.shop-hero h2{font-size:1.8125rem;max-width:65%;position:relative;z-index:1}.shop-hero p{max-width:65%;font-size:0.9375rem;margin:10px 0;color:#9b6480}.shop-hero img{position:absolute;width:190px;right:10px;bottom:-28px;transform:rotate(8deg)}.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.plan{padding:21px;position:relative}.plan.featured{border:2px solid var(--blue);padding:20px;background:linear-gradient(white,#f5f7ff)}.plan h3{font-size:1.125rem;margin:8px 0}.plan .price{font-size:1.75rem;letter-spacing:-1.2px;font-weight:800;margin:19px 0 2px;line-height:1.2}.plan .price small{font-size:0.8125rem;color:var(--muted);font-weight:500;letter-spacing:0}.plan ul{padding:0;list-style:none;font-size:0.8125rem;line-height:1.7;margin:22px 0;display:grid;gap:11px;min-height:108px}.plan li:before{content:'✓';color:var(--blue);margin-right:6px}.plan .btn{font-size:0.8125rem;padding:9px}.pack{padding:22px}.pack h3{font-size:1.125rem;margin-top:16px}.pack p{font-size:0.875rem;color:var(--muted);margin-top:6px}.pack .flex{margin-top:20px}.pack .flex .btn{font-size:0.8125rem}.teacher-hero{padding:24px;display:flex;justify-content:space-between;align-items:center;gap:20px;background:#eaf5f2}.teacher-hero img{width:100px}.teacher-hero p{font-size:0.875rem;color:#5e7d77;margin-top:6px}.table-wrap{overflow:auto}.class-table{width:100%;border-collapse:collapse;text-align:left;font-size:0.875rem}.class-table th{font-size:0.8125rem;color:var(--muted);background:var(--bg);padding:13px}.class-table td{padding:17px 13px;border-top:1px solid var(--line)}.assign-form{padding:24px;display:grid;gap:14px}.assign-form label{font-size:0.875rem;font-weight:650}.assign-form input,.assign-form select{width:100%;margin-top:5px;font-weight:400;font-size:0.9375rem}.assignment-entry{padding:17px;background:var(--bg);border-radius:12px;font-size:0.875rem;margin-top:9px}.assignment-entry p{font-size:0.8125rem;color:var(--muted);margin-top:4px}
dialog{border:1px solid var(--line);border-radius:23px;background:#fff;color:var(--ink);max-width:680px;width:calc(100% - 30px);padding:0;max-height:90dvh;box-shadow:0 30px 100px #10203b3b}dialog::backdrop{background:#101b3c66;backdrop-filter:blur(5px)}.dialog-head{padding:22px 25px 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.dialog-content{padding:24px;line-height:1.8;font-size:0.9375rem;overflow:auto}.dialog-content h3{margin:21px 0 9px;font-size:1.0625rem}.dialog-content h3:first-child{margin-top:0}.dialog-content p{margin:8px 0}.dialog-content ul{padding-left:20px}.dialog-content a{color:var(--blue);text-decoration:underline}.dialog-content table{font-size:0.8125rem;border-collapse:collapse;width:100%;margin:15px 0}.dialog-content th,.dialog-content td{border:1px solid var(--line);padding:10px;text-align:left}.dialog-content pre{background:#f1f4fb;border-radius:12px;padding:14px;font:12px/1.7 monospace;white-space:pre-wrap;overflow-wrap:anywhere}.arch-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.arch-box{border:1px solid var(--line);padding:13px;border-radius:12px;background:var(--bg);font-size:0.8125rem}.arch-box b{font-size:0.9375rem;display:block;margin-bottom:5px}.dialog-content .field{display:grid;gap:7px;margin:15px 0}.toast{position:fixed;left:50%;bottom:30px;transform:translate(-50%,20px);background:#17203a;color:white;border:1px solid #526386;padding:13px 22px;border-radius:13px;font-size:0.9375rem;max-width:90vw;z-index:100;opacity:0;pointer-events:none;transition:.25s;box-shadow:0 8px 35px #15203b2e}.toast.show{transform:translate(-50%,0);opacity:1}.reward-burst{position:fixed;inset:0;pointer-events:none;z-index:80}.reward-burst i{position:absolute;top:40%;width:8px;height:12px;border-radius:2px;background:var(--blue);animation:confetti 1s ease-out forwards}.mobile-preview{display:none}
@keyframes enter{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}@keyframes bob{50%{translate:0 -9px}}@keyframes confetti{to{translate:var(--dx) 300px;rotate:var(--rot);opacity:0}}
.answer:disabled{opacity:1}.sidebar .nav-item{white-space:nowrap}.stage-picker select{border:1px solid var(--line);font-size:0.8125rem;padding:8px 10px;min-height:36px}.welcome{gap:12px}.welcome h1{font-size:clamp(22px,2.2vw,30px)}.report-chart .empty img{max-height:145px;margin:0 auto 12px}.hero-art{width:40%}.hero-art .pink{right:0}.hero p{max-width:56%}.hero h2{font-weight:800}@media(max-width:760px){.welcome.flex{align-items:start;flex-direction:column}.welcome .stage-picker{margin-top:1px}.welcome p{max-width:340px}.hero-art{width:46%}.stage-picker select{min-height:32px;padding:5px 8px}}
@media(min-width:1680px){:root{--side:226px;--tutor:342px}.content{padding:34px 42px}.hero{min-height:300px;padding:35px}.hero-art{height:270px}.hero h2{font-size:2.6875rem}.course{min-height:190px}.subjects{gap:14px}}
@media(max-width:1280px){:root{--side:180px;--tutor:285px}.sidebar{padding:20px 11px}.nav-item{font-size:0.875rem;gap:9px;padding:12px}.content{padding:24px 23px}.topbar{padding:0 22px}.hero{padding:25px 23px}.hero h2{font-size:1.9375rem}.hero-art{width:44%;right:0;height:220px}.hero p{max-width:230px;font-size:0.875rem}.hero-footer{font-size:0.75rem}.subjects{gap:6px}.subject{padding:12px 3px 10px}.course{padding:18px}.course .course-img{width:78px}.lab-layout{grid-template-columns:1fr}.lab-story{padding:22px}.plans{grid-template-columns:1fr}.plan ul{min-height:0;grid-template-columns:1fr 1fr}.plan .btn{width:100%}.plan .price{margin:8px 0}.plan{padding:20px}.collection-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:1080px){:root{--side:185px;--tutor:310px}.shell{margin-right:0}.tutor{box-shadow:-10px 0 40px #17203a15}.tutor:not(.mobile-open){transform:translateX(100%)}.tutor.mobile-open{transform:translateX(0)}.tutor-open .scrim{display:block;position:fixed;inset:0;background:#1323453b;z-index:38}.hero{min-height:270px}.hero h2{font-size:2.3125rem}.hero-art{width:46%;height:250px}.hero p{max-width:300px}.course .course-img{width:100px}.plans{grid-template-columns:repeat(3,1fr)}.plan ul{grid-template-columns:1fr;min-height:135px}.plan .price{font-size:1.5625rem}.lab-layout{grid-template-columns:1fr 1fr}.collection-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:760px){:root{--side:0px;--tutor:340px}.sidebar{display:none}.shell{margin:0}.topbar{height:65px;padding:0 18px}.breadcrumb{display:none}.mobile-logo{display:block;font-size:2rem;letter-spacing:-3px}.topbar .coin{display:none}.topbar .avatar{display:none}.topbar .demo-switch{font-size:0.75rem;padding:3px 4px;gap:1px}.demo-switch select{font-size:0.75rem}.topbar .flex{gap:6px}.content{padding:24px 18px 100px}.welcome{margin-bottom:21px}.welcome h1{font-size:1.5625rem}.welcome p{font-size:0.875rem}.welcome .badge{font-size:0.75rem}.hero{min-height:280px;padding:23px 22px}.hero h2{font-size:2rem;max-width:85%}.hero p{max-width:53%;font-size:0.8125rem}.hero .btn{margin-top:18px;min-height:40px;font-size:0.8125rem;padding:9px 14px}.hero-art{width:48%;height:192px;right:0;bottom:0}.hero-art .blue{width:74%;left:-10%;bottom:9px}.hero-art .pink{width:68%;right:-6%;bottom:3px}.hero-art .orbit{font-size:1rem;top:40px;right:10%;padding:4px 7px}.hero-art .star{font-size:1.375rem;left:15%;top:20px}.hero-footer{font-size:0.75rem;max-width:62%;margin-top:13px}.hero-tag{font-size:0.75rem}.subjects{grid-template-columns:repeat(6,1fr);gap:5px;margin-top:19px}.subject{border:0;background:transparent;padding:0;gap:6px}.subject .symbol{width:43px;height:43px;border-radius:14px;font-size:1.3125rem}.subject b{font-size:0.8125rem}.subject small{display:none}.section-head{margin-top:25px}.section-head h2{font-size:1.125rem}.text-btn{font-size:0.8125rem}.two-col{gap:11px}.course{padding:17px 15px;min-height:190px}.course h3{font-size:1rem;max-width:100%;margin-top:12px}.course p{font-size:0.75rem;max-width:100%}.course .badge{font-size:0.75rem}.course .course-img{width:64px;height:65px;right:3px;bottom:9px}.course-meta{font-size:0.75rem;margin-top:28px;gap:5px;max-width:68%}.mission{padding:16px;gap:10px}.mission-icon{width:36px;height:36px;border-radius:10px}.mission h3{font-size:0.875rem}.mission .badge{font-size:0.75rem}.mission p{font-size:0.75rem}.mini-promote{padding:18px;gap:14px}.mini-promote h3{font-size:0.9375rem}.mini-promote p{font-size:0.75rem}.mini-promote .btn{font-size:0.75rem;padding:8px 12px;min-height:36px}.page-footer{font-size:0.75rem}.page-footer button{font-size:0.75rem}.bottom-nav{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;inset:auto 0 0;background:#fffffff5;backdrop-filter:blur(14px);border-top:1px solid var(--line);padding:9px 6px calc(8px + env(safe-area-inset-bottom));z-index:32}.bottom-nav button{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:0.75rem;color:#8b94a9;padding:0;min-height:41px}.bottom-nav .icon{width:21px;height:21px}.bottom-nav button.active{color:var(--blue);font-weight:750}.tutor{width:min(100%,380px);z-index:50}.tutor-top{height:66px}.tutor-compose{padding-bottom:max(20px,env(safe-area-inset-bottom))}.toast{bottom:85px;font-size:0.8125rem;width:max-content;max-width:90vw;text-align:center}.filters{padding:13px}.filter-top{flex-wrap:wrap}.search-wrap{flex-basis:100%}.filter-top select{flex:1;font-size:0.8125rem}.tabs{gap:5px;margin-top:12px}.tab{font-size:0.8125rem;padding:7px 10px}.problem-grid{grid-template-columns:1fr}.problem-card{padding:18px}.problem-card h3{font-size:1.0625rem;margin:12px 0 7px}.problem-card .meta{margin-top:15px}.question-panel{padding:20px 17px}.question-panel h2{font-size:1.3125rem}.passage{padding:17px;font-size:0.9375rem}.question-text{font-size:1rem}.answer{padding:12px 10px;font-size:0.9375rem}.question-actions{flex-wrap:wrap}.question-actions .btn{font-size:0.875rem}.question-actions .muted{font-size:0.75rem}.lab-layout{display:block}.lab-mobile-tabs{display:flex;gap:8px;margin:14px 0}.lab-mobile-tabs button{flex:1;padding:10px;background:#e9edfa;border-radius:9px;font-size:0.875rem}.lab-mobile-tabs button.active{background:var(--blue);color:white}.lab-story{display:none}.lab-layout.show-story .lab-story{display:block}.lab-layout.show-story .lab-work{display:none}.lab-tools select{font-size:0.8125rem;max-width:none;width:100%}.lab-tools{gap:6px}.lab-tools .text-btn{font-size:0.75rem}.code-input{font-size:0.8125rem;min-height:300px}.line-numbers{font-size:0.8125rem}.editor-bottom{flex-wrap:wrap}.editor-bottom .btn{flex:1}.notice{font-size:0.75rem}.stats-grid{gap:8px}.stat{padding:14px 12px}.stat strong{font-size:1.5625rem}.stat span{font-size:0.75rem}.report-grid{grid-template-columns:1fr}.report-chart{padding:20px}.records{padding:19px}.record{font-size:0.8125rem}.collection-header{padding:20px;gap:10px}.collection-header h2{font-size:1.1875rem}.collection-header p{font-size:0.8125rem}.collection-header img{width:90px}.collection-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.collect-card{padding:14px}.collect-card img{height:115px}.collect-card h3{font-size:0.875rem}.shop-hero{padding:24px 20px}.shop-hero h2{font-size:1.5625rem;max-width:70%}.shop-hero p{font-size:0.8125rem;max-width:63%}.shop-hero img{width:145px;right:-15px}.plans{grid-template-columns:1fr}.plan ul{min-height:0;grid-template-columns:1fr 1fr;font-size:0.8125rem;margin:19px 0}.plan .price{font-size:1.875rem}.pack{padding:17px}.pack h3{font-size:1rem}.pack p{font-size:0.8125rem}.pack .flex{flex-wrap:wrap;gap:10px}.pack .btn{width:100%}.teacher-hero{padding:20px}.teacher-hero h2{font-size:1.25rem}.teacher-hero img{width:75px}.table-wrap{max-width:100%}.class-table{min-width:450px}.arch-grid{grid-template-columns:1fr}.dialog-content{padding:20px;font-size:0.875rem}.dialog-content table{font-size:0.75rem}.dialog-content td,.dialog-content th{padding:7px}.dialog-head{padding:18px 20px}.dialog-head h2{font-size:1.1875rem}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}@media print{.sidebar,.topbar,.tutor,.bottom-nav,.page-footer,.scrim,dialog{display:none!important}.shell{margin:0}.content{padding:0}.card{break-inside:avoid}.hero-art img{animation:none}}
@media(max-width:760px){.hero-art .pink{right:1%;width:60%}.hero-art .blue{left:-6%;width:70%}.tutor:not(.mobile-open){box-shadow:none}.bottom-nav button{white-space:nowrap}}
/* v2: plain navigation, student avatars and focused ranking */
.nav-item{padding:11px 14px;gap:13px}.nav-item small{display:block;font-size:0.75rem;color:#8f9bbb;margin-top:1px;font-weight:450}.nav-item.active small{color:#b5c5ec}.nav-caption{letter-spacing:.03em;font-size:0.75rem}.side-quote{display:none}.sidebar .secondary-nav{margin-top:23px}.sidebar .logo-label{letter-spacing:1px}.topbar .avatar{pointer-events:none}.profile-avatar{width:36px;height:36px;border-radius:50%;background:#e3eafe;overflow:hidden;flex-shrink:0}.profile-avatar .cogo-avatar{width:60px;height:60px;transform:translate(-12px,-2px)}.coin-circle{font-size:0.75rem}.tutor-toggle[hidden]{display:none}.tutor-toggle{width:auto;gap:6px;display:flex;font-size:0.8125rem;font-weight:750;padding:8px 11px;background:var(--blue-soft)}.content{max-width:1240px}.topbar{background:#f6f8fcf5}.cogo-avatar{position:relative;aspect-ratio:1;isolation:isolate;flex-shrink:0}.cogo-avatar>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;max-width:100%;transform:none}.home-layout{display:grid;grid-template-columns:minmax(0,1.9fr) minmax(260px,1fr);gap:20px}.home-layout .hero{min-height:325px;padding:31px 30px}.home-layout .hero h2{font-size:clamp(29px,2.6vw,40px);margin-top:19px}.home-layout .hero p{font-size:0.875rem;max-width:57%}.home-layout .hero-art{width:45%;height:242px;right:2px}.home-layout .hero-art .blue{left:-2%}.home-layout .hero-art .pink{right:0}.home-layout .hero-art .orbit{top:28px;font-size:1rem}.home-layout .hero-art .star{top:5px}.home-me{padding:22px 24px}.home-me h2{font-size:1.0625rem}.home-avatar-row{display:flex;align-items:center;gap:1px;margin:7px -12px -1px}.home-avatar-row .cogo-avatar{width:150px}.home-avatar-row>div:last-child{flex:1;min-width:0}.home-avatar-row .small{font-size:0.75rem}.home-avatar-row strong{font-size:2.625rem;font-weight:850;line-height:1.2;display:block;margin:6px 0}.home-avatar-row strong small{font-size:1.125rem;margin-left:5px}.rank-up{color:#21866b;font-size:0.8125rem;font-weight:750}.home-rank-line{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);margin:8px 0 14px;padding-top:13px;font-size:0.8125rem;color:var(--muted)}.home-rank-line b{font-size:1rem;color:var(--ink)}.home-me .btn{font-size:0.8125rem;min-height:38px}.home-me .btn .icon{transform:rotate(180deg);width:15px;height:15px}.section-head>select{min-height:34px;padding:4px 10px;font-size:0.8125rem}.home-subjects{margin-top:0;gap:13px;margin-bottom:22px}.home-subjects .subject{padding:17px 10px;gap:8px}.home-subjects .symbol{width:45px;height:45px}.home-next{display:flex;align-items:center;padding:22px 25px;gap:16px}.home-next-icon{background:#e9f5ef;border-radius:13px;color:#249471;width:43px;height:43px;display:grid;place-items:center;flex-shrink:0}.home-next h3{font-size:1rem}.home-next p{font-size:0.8125rem;color:var(--muted);margin-top:3px}.home-next>.badge{margin-left:auto}.segmented{display:inline-flex;align-items:center;gap:4px;padding:5px;border-radius:12px;background:#e9edf5;flex-shrink:0}.segmented button{padding:7px 15px;font-size:0.875rem;font-weight:650;border-radius:8px;color:#74809a;min-height:34px}.segmented button.active{color:var(--blue);background:white;box-shadow:0 2px 6px #1e325a0b}.segmented.compact{padding:4px;border-radius:9px}.segmented.compact button{padding:5px 9px;font-size:0.75rem;min-height:28px}.rank-toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:20px}.rank-toolbar select{font-size:0.875rem;padding:7px 14px}.rank-demo{font-size:0.75rem;color:var(--muted);margin-left:auto}.welcome .text-btn{display:flex;align-items:center;gap:5px;font-size:0.8125rem}.welcome .text-btn .icon{width:17px}.rank-hero{display:flex;align-items:center;justify-content:space-between;position:relative;background:#263f9e;color:white;border-radius:23px;padding:28px 36px;overflow:hidden;min-height:255px}.rank-hero:after{content:'';position:absolute;width:350px;height:350px;border:1px solid #ffffff18;border-radius:50%;right:-20px;top:-30px;pointer-events:none}.rank-hero>div:first-child{position:relative;z-index:2}.rank-hero h2{font-size:2.1875rem;margin:17px 0 10px;line-height:1.2}.rank-hero em{font-style:normal;color:#ffd987}.rank-hero p{font-size:0.875rem;color:#ccd8ff;line-height:1.75}.rank-hero .btn{margin-top:19px;color:#294496;font-size:0.875rem}.rank-hero small{display:block;font-size:0.75rem;color:#adbfea;margin-top:8px}.rank-hero-avatar{position:relative;width:240px;height:225px;z-index:1}.rank-hero-avatar .cogo-avatar{width:225px;margin:0 auto}.rank-label{position:absolute;bottom:1px;left:50%;transform:translateX(-50%);min-width:105px;border:1px solid #ffffff2b;background:#ffffff1c;backdrop-filter:blur(10px);padding:7px 15px;border-radius:30px;text-align:center;font-size:0.8125rem;z-index:15}.rank-label b{margin-left:7px;color:#ffe2a8}.rank-metrics{display:grid;grid-template-columns:repeat(3,1fr);margin:21px 0 24px;padding:20px 0;background:white;border:1px solid var(--line);border-radius:18px}.rank-metrics>div{padding:0 25px;border-right:1px solid var(--line)}.rank-metrics>div:last-child{border:0}.rank-metrics span{font-size:0.8125rem;color:var(--muted)}.rank-metrics span small{font-size:0.75rem;padding:2px 4px;background:var(--bg);border-radius:4px}.rank-metrics strong{font-size:1.625rem;display:block;line-height:1.3;margin-top:5px;letter-spacing:-.03em}.rank-metrics strong small{font-size:0.8125rem;margin-left:4px;font-weight:500}.rank-main-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:20px;align-items:start}.ranking-board{padding:22px 22px 0;overflow:hidden}.ranking-board>.section-head{margin:0 0 20px}.ranking-board h2{font-size:1.0625rem}.ranking-board .small{font-size:0.75rem;margin-top:5px}.rank-row{display:grid;grid-template-columns:45px minmax(0,1fr) 74px 43px;align-items:center;gap:10px;min-height:74px;border-top:1px solid var(--line);font-size:0.8125rem;padding:0 10px}.rank-row.rank-table-head{border-top:0;min-height:34px;font-size:0.75rem;color:var(--muted);background:var(--bg);border-radius:8px;margin-bottom:3px}.rank-row.rank-table-head span:nth-last-child(-n+2){text-align:right}.rank-number{font-size:1.1875rem}.rank-number small{font-size:0.75rem;color:var(--muted);font-weight:500;margin-left:2px}.rank-person{display:flex;align-items:center;gap:6px;min-width:0}.rank-person>div:last-child{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.rank-face{width:54px;height:54px;border-radius:15px;background:#f4f6fb;overflow:hidden}.rank-face>img{width:100%;height:100%;object-fit:contain;transform:scale(1.3);transform-origin:50% 27%}.rank-person b{font-size:0.8125rem;white-space:nowrap}.rank-person .badge{font-size:0.75rem;padding:2px 5px}.rank-score{font-size:0.9375rem;text-align:right}.rank-score small{font-size:0.75rem;font-weight:500;margin-left:2px}.rank-change{color:#259271;font-size:0.75rem;text-align:right}.rank-row.is-me{background:#edf2ff;border:1px solid #b4c4fc;border-radius:12px;position:relative;margin:3px -4px;padding:0 13px}.rank-row.is-me+.rank-row{border-top:0}.rank-row.is-me .rank-number{color:var(--blue)}.rank-board-note{text-align:center;border-top:1px solid var(--line);font-size:0.75rem;color:var(--muted);padding:17px 0}.rank-side{display:grid;gap:16px}.rank-podium{padding:21px 17px 0;overflow:hidden;background:#fffefa}.rank-podium h3{font-size:0.9375rem}.rank-podium .icon{color:#c09136;width:19px}.podium{display:flex;align-items:end;margin-top:10px;gap:5px;text-align:center}.podium-person{width:33.33%;min-width:0}.podium-person .cogo-avatar{width:100%}.podium-person b{font-size:0.75rem;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:-2px}.podium-person span{display:block;font-size:0.75rem;color:var(--muted);margin:2px 0 8px}.podium-base{height:38px;border-radius:9px 9px 0 0;background:#e9eff8;color:#63788e;font-size:1.25rem;font-weight:850;display:grid;place-items:center}.pos-1 .podium-base{height:60px;background:#ffefc3;color:#bb8b29}.pos-2 .podium-base{height:29px;background:#f3e8df;color:#ad7c5f}.pos-1 .cogo-avatar{transform:scale(1.12)}.rank-reward{padding:24px;text-align:center;background:#fbfbff}.rank-reward h3{font-size:1.125rem;margin:11px 0}.rank-reward p{font-size:0.8125rem;color:var(--muted)}.rank-reward>small{display:block;margin-top:11px;color:#9099ad;font-size:0.75rem}.reward-ring{width:68px;height:68px;border:4px double #d5b269;border-radius:50%;display:grid;place-items:center;color:#b3882f;margin:14px auto;background:#fff7e0}.reward-ring .icon{width:29px;height:29px}.rank-result{padding:10px 13px;background:#e1f3e9;border-radius:10px;margin:10px 0 15px;color:#207756;font-size:0.9375rem}.rank-result small{font-size:0.75rem;color:#698577}.wardrobe-layout{display:grid;grid-template-columns:290px minmax(0,1fr);gap:22px;align-items:start}.fitting-room{padding:21px;position:sticky;top:95px;text-align:center;overflow:hidden}.fitting-room h2{font-size:1.0625rem}.fitting-room .badge{font-size:0.75rem}.avatar-stage{position:relative;background:radial-gradient(ellipse at 50% 85%,#dfe8fc 0,transparent 50%);border-radius:16px;margin:16px -10px 5px}.avatar-stage .cogo-avatar{width:100%;z-index:2}.avatar-shadow{width:37%;height:8px;border-radius:50%;background:#adbee936;position:absolute;bottom:15%;left:31.5%;filter:blur(4px)}.base-choice{display:flex;justify-content:center;margin:10px 0 15px}.base-choice button{flex:1}.fitting-hint{font-size:0.8125rem;color:var(--muted);margin:17px 0}.avatar-original{font-size:0.75rem;color:#99a2b5;margin-top:18px}.fitting-detail b{display:block;font-size:0.875rem;margin-top:14px}.fitting-detail>span{display:block;font-size:0.8125rem;color:var(--muted);margin:5px 0 13px}.fitting-detail .btn{font-size:0.8125rem}.fitting-detail>.text-btn{font-size:0.75rem;margin-top:10px}.wardrobe-heading{display:flex;justify-content:space-between;gap:10px;align-items:center}.wardrobe-heading>small{font-size:0.75rem;color:var(--muted)}.part-tabs{margin:17px 0 20px;gap:5px}.part-tabs .tab{padding:6px 10px;font-size:0.8125rem}.wardrobe-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}.wardrobe-item{text-align:left;overflow:hidden;padding:10px 12px 14px;transition:transform .2s,border .2s}.wardrobe-item:hover{transform:translateY(-3px);border-color:#a8baff}.wardrobe-item.trying{border-color:var(--blue);box-shadow:0 0 0 2px #4161ef22}.item-art{background:#f5f7fb;border-radius:13px;position:relative;margin-bottom:10px;aspect-ratio:1;overflow:hidden}.item-art img{width:100%;height:100%;object-fit:contain}.item-art .badge{position:absolute;left:6px;top:6px;font-size:0.75rem;padding:2px 5px}.wardrobe-item>small{font-size:0.75rem;color:var(--muted)}.wardrobe-item h3{font-size:0.8125rem;line-height:1.6;min-height:38px;margin:3px 0 7px;font-weight:650;letter-spacing:0}.wardrobe-item>b{font-size:0.8125rem;color:var(--blue)}.learning-help{margin-top:21px;background:#edf1ff;border-radius:18px;padding:19px 24px;display:flex;justify-content:space-between;align-items:center;gap:17px}.learning-help>div{display:flex;align-items:center;gap:18px}.learning-help img{width:64px;height:77px;object-fit:contain}.learning-help h3{font-size:1.125rem;margin:8px 0 3px}.learning-help p{font-size:0.8125rem;color:var(--muted)}.learning-help .btn{font-size:0.8125rem;flex-shrink:0}.simplified-plans{grid-template-columns:1fr 1fr}.parent-note{padding:24px;margin-top:21px}.parent-note h3{font-size:1.0625rem}.parent-note p{font-size:0.875rem;color:var(--muted);margin:8px 0 13px}.parent-note .text-btn{color:var(--blue);font-size:0.8125rem}.plan-steps{display:grid;gap:12px;margin:20px 0}.plan-steps>div{background:var(--bg);border-radius:10px;padding:15px}.plan-steps p{margin-top:5px!important}.solver-head .bookmark{position:static}.solver-head .flex{min-height:35px}
@media(max-width:1200px){.home-layout{grid-template-columns:minmax(0,1.65fr) minmax(245px,1fr)}.home-me{padding:20px}.home-avatar-row .cogo-avatar{width:120px}.rank-main-grid{grid-template-columns:minmax(0,1fr) 265px;gap:14px}.ranking-board{padding:20px 15px 0}.ranking-board>.section-head{flex-wrap:wrap}.wardrobe-layout{grid-template-columns:250px minmax(0,1fr);gap:16px}.wardrobe-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:761px) and (max-width:1000px){.home-layout{grid-template-columns:1fr}.home-me{display:none}.rank-main-grid{grid-template-columns:1fr}.rank-side{grid-template-columns:1fr 1fr}.wardrobe-layout{grid-template-columns:210px minmax(0,1fr)}.fitting-room{padding:15px}.learning-help{flex-wrap:wrap}.rank-hero{padding:25px}.rank-hero h2{font-size:1.875rem}.rank-hero-avatar{width:180px}.rank-hero-avatar .cogo-avatar{width:195px;margin-left:-10px}.rank-metrics>div{padding:0 15px}.rank-metrics span{font-size:0.75rem}}
@media(max-width:760px){.profile-avatar{display:none}.topbar{padding:0 16px}.topbar .tutor-toggle{font-size:0;width:32px;padding:5px;background:transparent}.topbar .tutor-toggle .icon{width:21px}.content{padding:24px 17px 95px}.welcome h1{font-size:1.625rem}.welcome .eyebrow{font-size:0.75rem}.welcome p{font-size:0.8125rem}.home-layout{grid-template-columns:1fr;gap:14px}.home-layout .hero{min-height:298px;padding:25px 23px}.home-layout .hero h2{font-size:2rem;line-height:1.25;max-width:100%}.home-layout .hero p{font-size:0.8125rem;max-width:58%}.home-layout .hero-art{width:46%;height:205px;right:0}.home-layout .hero .btn{font-size:0.8125rem;margin-top:22px}.home-layout .hero .btn .icon{width:15px}.home-me{padding:18px 19px;display:grid;grid-template-columns:1fr 1fr;column-gap:20px;align-items:center}.home-me>.flex{grid-column:1/-1;margin-bottom:4px}.home-me h2{font-size:0.9375rem}.home-me .badge{font-size:0.75rem}.home-avatar-row{margin:0 -15px;grid-row:2/4;gap:0}.home-avatar-row .cogo-avatar{width:98px}.home-avatar-row .small{display:none}.home-avatar-row strong{font-size:1.8125rem;white-space:nowrap;margin:0 0 4px}.home-avatar-row strong small{font-size:0.875rem}.home-avatar-row .rank-up{font-size:0.75rem;white-space:nowrap}.home-rank-line{padding:10px 0 0;border:0;margin:0 0 10px;display:block;text-align:right}.home-rank-line span{font-size:0.75rem;display:block}.home-rank-line b{font-size:1.1875rem}.home-me .btn{font-size:0.75rem;min-height:33px;padding:7px 9px;gap:3px}.home-me .btn .icon{width:12px}.home-subjects{gap:5px;margin-bottom:20px}.home-subjects .subject{border:0;padding:0;gap:7px}.home-subjects .symbol{width:44px;height:44px}.home-subjects b{font-size:0.8125rem}.home-subjects small{display:none}.section-head{margin:25px 0 18px}.home-next{padding:17px;gap:11px;flex-wrap:wrap}.home-next h3{font-size:0.875rem}.home-next p{font-size:0.75rem}.home-next-icon{width:33px;height:33px}.home-next>div:nth-child(2){flex:1}.home-next>.badge{margin-left:44px;font-size:0.75rem}.rank-toolbar{gap:8px;margin:0 0 17px}.segmented{padding:4px}.segmented button{font-size:0.8125rem;padding:6px 13px;min-height:33px}.rank-toolbar select{font-size:0.8125rem;min-height:40px;padding:6px 11px;margin-left:auto}.rank-demo{margin-left:0;font-size:0.75rem;flex-basis:100%;padding:3px 0}.rank-hero{padding:24px 21px;min-height:265px;display:block}.rank-hero h2{font-size:1.75rem;max-width:100%;margin:16px 0 12px}.rank-hero p{font-size:0.75rem;max-width:67%}.rank-hero .hero-tag{font-size:0.75rem}.rank-hero .btn{font-size:0.75rem;min-height:39px;margin-top:22px;padding:9px 11px;gap:5px}.rank-hero .btn .icon{width:16px;height:16px}.rank-hero small{font-size:0.75rem;max-width:64%}.rank-hero-avatar{position:absolute;right:-11px;bottom:36px;width:135px;height:149px;z-index:1}.rank-hero-avatar .cogo-avatar{width:153px;margin-left:-9px}.rank-label{font-size:0.75rem;min-width:79px;bottom:-2px;padding:5px 10px}.rank-hero:after{width:230px;height:230px;right:-65px;top:31px}.rank-metrics{margin:17px 0 21px;padding:15px 0;border-radius:14px}.rank-metrics>div{padding:0 11px}.rank-metrics span{font-size:0.75rem;line-height:1.5;display:block;min-height:27px}.rank-metrics span small{display:none}.rank-metrics strong{font-size:1.375rem}.rank-metrics strong small{font-size:0.75rem;margin-left:2px}.rank-main-grid{grid-template-columns:1fr;gap:17px}.ranking-board{padding:19px 12px 0}.ranking-board>.section-head{gap:8px;margin:0 0 17px;padding:0 3px;flex-wrap:wrap}.ranking-board h2{font-size:1rem}.ranking-board .small{font-size:0.75rem}.rank-row{grid-template-columns:30px minmax(0,1fr) 54px 30px;gap:7px;padding:0 5px;min-height:69px}.rank-row.rank-table-head{font-size:0.75rem;min-height:31px}.rank-number{font-size:1rem}.rank-person{gap:4px}.rank-person b{font-size:0.75rem}.rank-person>div:last-child{gap:2px;flex-direction:column;align-items:start}.rank-face{width:44px;height:44px;border-radius:12px}.rank-score{font-size:0.8125rem}.rank-score small{font-size:0.75rem}.rank-change{font-size:0.75rem}.rank-row.is-me{margin:3px 0;padding:0 4px}.rank-person .badge{font-size:0.75rem}.rank-board-note{font-size:0.75rem;padding:15px 0}.rank-side{grid-template-columns:1fr 1fr;gap:10px}.rank-podium{padding:17px 10px 0;align-self:stretch;display:flex;flex-direction:column}.rank-podium h3{font-size:0.8125rem}.rank-podium>.flex .icon{display:none}.podium{gap:3px;margin-top:auto;padding-top:14px}.podium-person b{font-size:0.75rem}.podium-person span{font-size:0.75rem}.podium-base{font-size:1rem}.rank-reward{padding:17px 10px}.rank-reward>.badge{font-size:0.75rem}.rank-reward h3{font-size:0.9375rem;margin:9px 0}.rank-reward p{font-size:0.75rem}.rank-reward>small{font-size:0.75rem;line-height:1.6}.reward-ring{width:45px;height:45px;margin:10px auto}.reward-ring .icon{width:22px;height:22px}.rank-result{font-size:0.8125rem}.wardrobe-layout{grid-template-columns:1fr;gap:22px}.fitting-room{position:static;padding:18px 20px;scroll-margin-top:79px}.fitting-room h2{font-size:1rem}.avatar-stage{width:210px;margin:4px auto 0}.base-choice{max-width:240px;margin:3px auto 10px}.fitting-hint{font-size:0.75rem;margin:12px 0 0}.avatar-original{font-size:0.75rem;margin-top:11px}.fitting-detail b{font-size:0.8125rem}.fitting-detail .btn{max-width:300px}.fitting-detail>.text-btn{display:block;margin:10px auto 0}.wardrobe-heading{gap:6px}.wardrobe-heading>small{font-size:0.75rem}.part-tabs{margin:13px 0 18px;gap:4px}.part-tabs .tab{font-size:0.75rem;padding:6px 9px}.wardrobe-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.wardrobe-item{padding:7px 8px 11px;border-radius:14px}.item-art{border-radius:9px;margin-bottom:8px}.wardrobe-item h3{font-size:0.75rem;min-height:47px;line-height:1.5;margin:3px 0 6px}.wardrobe-item>b{font-size:0.75rem}.wardrobe-item>small{font-size:0.75rem}.item-art .badge{font-size:0.75rem;left:3px;top:3px;padding:1px 4px}.learning-help{padding:17px;flex-wrap:wrap;gap:13px}.learning-help>div{gap:10px}.learning-help img{width:46px;height:63px}.learning-help h3{font-size:1rem}.learning-help p{font-size:0.75rem}.learning-help .badge{font-size:0.75rem}.learning-help .btn{margin-left:56px;font-size:0.75rem;min-height:36px;padding:8px 12px}.simplified-plans{grid-template-columns:1fr}.parent-note{padding:20px}.parent-note p{font-size:0.8125rem}.welcome .btn{font-size:0.75rem;padding:8px 11px;min-height:36px}.welcome .btn .icon{width:15px}.bottom-nav button{font-size:0.75rem}.tutor .tutor-greeting h2{font-size:1.4375rem}}
@media(max-width:355px){.rank-hero h2{font-size:1.5625rem}.rank-hero-avatar{width:112px;right:-17px}.rank-hero-avatar .cogo-avatar{width:133px}.home-layout .hero h2{font-size:1.8125rem}.home-avatar-row .cogo-avatar{width:80px}.home-me{column-gap:10px}.home-me .btn{font-size:0.75rem}.rank-row{grid-template-columns:25px minmax(0,1fr) 46px 22px;gap:5px}.rank-person b{font-size:0.75rem}.rank-face{width:36px;height:43px}.rank-score{font-size:0.75rem}.rank-row.is-me{padding:0 4px}.rank-reward h3{font-size:0.8125rem}.rank-podium h3{font-size:0.75rem}.wardrobe-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.rank-metrics strong{font-size:1.1875rem}.rank-metrics>div{padding:0 9px}.topbar .demo-switch{font-size:0.75rem}}

.sidebar-note{font-size:0.75rem;line-height:1.8;padding:0 12px 10px;color:#8090b2}.page{animation:enter .22s both}.rank-metrics{margin-top:17px}.rank-main-grid .rank-score small{margin-left:3px}
@media(min-width:1001px){.rank-hero{min-height:218px;padding:22px 32px}.rank-hero h2{font-size:2.125rem;margin:11px 0 8px}.rank-hero .btn{margin-top:13px}.rank-hero-avatar{height:196px}.rank-hero-avatar .cogo-avatar{width:200px}.rank-metrics{padding:16px 0;margin-bottom:20px}.ranking-board .section-head{margin-bottom:15px}.rank-row{min-height:68px}}

.item-art img{max-width:none}

/* A quieter home. Detail appears where the action happens. */
.v3-welcome{display:flex;justify-content:space-between;align-items:center;margin-bottom:26px}.v3-welcome h1{margin-top:9px;font-size:1.8125rem;letter-spacing:-1px}.quiet-demo{font-size:0.75rem;color:#8490a8;background:#eaf0f8;padding:7px 11px;border-radius:20px}.v3-home-grid{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(260px,1fr);gap:21px}.focus-hero{position:relative;border-radius:24px;overflow:hidden;background:#284aaf;min-height:355px;color:white;padding:33px}.hero-grid{position:absolute;inset:0;opacity:.13;background-image:linear-gradient(#bcd3ff 1px,transparent 1px),linear-gradient(90deg,#bcd3ff 1px,transparent 1px);background-size:55px 55px;mask-image:linear-gradient(90deg,transparent,#000)}.hero-copy{position:relative;z-index:2;pointer-events:none}.hero-copy button{pointer-events:auto}.hero-copy h2{font-size:clamp(27px,2.7vw,39px);line-height:1.35;margin:17px 0 10px;letter-spacing:-1.6px}.hero-copy h2 em{font-style:normal;color:#cfddff}.hero-copy p{font-size:0.8125rem;color:#d1ddff;max-width:59%;line-height:1.65}.hero-start{margin-top:23px;min-height:43px;font-size:0.875rem;color:#2646a1;box-shadow:0 7px 18px #08206b26}.hero-progress{display:flex;align-items:center;gap:12px;margin-top:21px;max-width:205px;font-size:0.75rem;color:#c5d5ff}.hero-progress .progress{height:4px;background:#ffffff24;flex:1}.hero-progress .progress span{background:#9cb7ff}.v3-hero-art{position:absolute;right:6px;bottom:14px;width:46%;height:265px;pointer-events:none}.v3-hero-art .main-mascot{width:85%;position:absolute;bottom:10px;left:-4%;filter:drop-shadow(0 12px 8px #071a591f);animation:hero-float 6s ease-in-out infinite}.v3-hero-art .small-mascot{position:absolute;width:60%;right:-5%;bottom:-10px;transform:rotate(10deg);animation:small-float 7s ease-in-out infinite}.art-orbit{position:absolute;inset:0;border-radius:50%;border:1px solid #ffffff24;transform:rotate(-30deg) scale(1.12,.8)}.art-plus{position:absolute;top:4px;right:24px;color:#b3c9ff;font-size:2.1875rem;font-weight:300}.art-star{position:absolute;left:10px;top:15px;color:#ffdb8f;font-size:1.875rem}.today-card{padding:25px;display:flex;flex-direction:column}.today-card h2{font-size:1.125rem}.today-card .badge{font-size:0.75rem}.today-card>p{margin:7px 0 18px;font-size:0.8125rem}.today-card ol{padding:0;margin:0;list-style:none;flex:1}.today-card li{display:flex;align-items:center;gap:12px;padding:16px 0;border-top:1px solid #eef1f7}.today-card li>div{flex:1;min-width:0}.today-card li b{font-size:0.875rem}.today-card li small{display:block;color:var(--muted);font-size:0.75rem;margin-top:5px}.step-no{width:29px;height:29px;display:grid;place-items:center;background:#edf2ff;border-radius:9px;color:var(--blue);font-size:0.8125rem;font-weight:800}.today-card li>.icon{width:14px;color:#a7b3cb;transform:rotate(180deg)}.today-foot{display:flex;gap:8px;align-items:center;margin-top:9px;border-top:1px solid var(--line);padding-top:16px;color:#7c88a1;font-size:0.75rem}.today-foot .icon{width:15px}.home-subjects .subject{display:flex;flex-direction:row;justify-content:center;gap:10px;padding:15px 8px}.home-subjects .symbol{width:34px;height:34px;border-radius:10px;font-size:1.125rem}.home-rank-strip{width:100%;display:flex;align-items:center;gap:17px;padding:7px 24px;text-align:left;min-height:99px;background:linear-gradient(105deg,#fff,#f2f6ff)}.home-rank-strip>.cogo-avatar{width:82px;height:82px}.home-rank-strip>div:not(.cogo-avatar){flex:1}.home-rank-strip span{font-size:0.8125rem;color:var(--muted)}.home-rank-strip span small{font-size:0.75rem;margin-left:3px}.home-rank-strip strong{display:block;font-size:1.5625rem;margin-top:6px}.home-rank-strip strong small{font-size:0.75rem;color:#657593;font-weight:500;margin-left:10px}.home-rank-strip .rank-strip-link{display:flex;align-items:center;gap:7px;color:var(--blue);font-size:0.8125rem;font-weight:650}.rank-strip-link .icon{width:14px;transform:rotate(180deg)}.effect-toggle{display:flex;gap:5px;align-items:center;font-size:0.75rem;color:#8b96ab;padding:7px 9px;white-space:nowrap}.effect-toggle .icon{width:15px;height:15px}.effect-toggle[aria-pressed=true]{color:var(--blue);background:#eaf0ff;border-radius:8px}
/* Learning: history, selected mistakes, then parent evidence. */
.wrap{flex-wrap:wrap}.learning-source select{font-size:0.8125rem}.learning-tabs{display:flex;gap:25px;border-bottom:1px solid #dfe6f1;margin-bottom:23px}.learning-tabs button{padding:0 2px 15px;position:relative;font-size:0.9375rem;color:#7b879e;font-weight:650}.learning-tabs button.active{color:var(--blue)}.learning-tabs button.active:after{content:'';height:3px;background:var(--blue);position:absolute;bottom:-1px;left:0;right:0;border-radius:3px}.sample-label{font-size:0.75rem;color:#8591a5;background:#edf1f7;padding:10px 14px;border-radius:9px;margin-bottom:20px}.learning-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px;margin-bottom:22px}.learning-stats article{padding:23px 25px}.learning-stats span{display:block;color:var(--muted);font-size:0.875rem}.learning-stats strong{display:block;font-size:2.125rem;margin-top:12px}.learning-stats strong small{font-size:0.875rem;font-weight:450;color:var(--muted);margin-left:5px}.next-learning{display:flex;align-items:center;justify-content:space-between;padding:24px 28px;background:#f1f5ff;gap:20px}.next-learning>div{display:flex;align-items:center;gap:20px}.next-learning img{width:75px;height:88px;object-fit:contain}.next-learning h2{font-size:1.25rem;margin:10px 0 6px}.next-learning p{color:var(--muted);font-size:0.8125rem;line-height:1.7}.next-learning .btn{flex-shrink:0;font-size:0.8125rem}.learning-records{padding:25px;margin-top:23px}.learning-records>h2{font-size:1.0625rem;margin-bottom:17px}.learning-record{display:flex;align-items:center;gap:14px;padding:15px 0;border-top:1px solid var(--line)}.learning-record>.icon{color:#8897b7;width:18px;flex-shrink:0}.learning-record>div{flex:1;min-width:0}.learning-record b{font-size:0.875rem}.learning-record small{display:block;font-size:0.75rem;color:var(--muted);margin-top:4px}.learning-record .badge{font-size:0.75rem}.learning-bottom-links{display:flex;justify-content:flex-end;gap:18px;margin-top:23px}.learning-bottom-links .text-btn{font-size:0.75rem;color:#7a89a5}.mobile-teacher{display:none}.wrong-intro{display:flex;align-items:center;justify-content:space-between;margin:8px 0 24px}.wrong-intro h2{font-size:1.4375rem;letter-spacing:-.6px}.wrong-intro p{font-size:0.875rem;color:var(--muted);margin-top:8px}.wrong-count{font-size:2rem;font-weight:800;color:var(--blue);white-space:nowrap}.wrong-count small{font-size:0.8125rem;font-weight:500;margin-left:6px;color:var(--muted)}.wrong-filters{display:flex;gap:9px;margin-bottom:17px;flex-wrap:wrap}.wrong-filters select{font-size:0.8125rem;max-width:100%}.wrong-list{overflow:hidden}.wrong-list-head{display:flex;justify-content:space-between;background:#f4f7fc;padding:16px 21px;color:#7b88a3;font-size:0.75rem}.wrong-list-head label{display:flex;align-items:center;gap:11px;cursor:pointer}.wrong-list input,.print-check input,.teacher-table input{width:16px;height:16px;accent-color:var(--blue);cursor:pointer;flex-shrink:0}.wrong-row{display:flex;align-items:center;gap:17px;padding:21px;border-top:1px solid var(--line)}.check-target{padding:12px 0;display:flex;cursor:pointer}.wrong-main{flex:1}.wrong-main>div{display:flex;align-items:center;gap:7px;font-size:0.75rem;color:var(--muted)}.subject-dot{width:6px;height:6px;border-radius:50%}.status-mini{background:#f2f4f8;padding:3px 5px;border-radius:4px;margin-left:4px}.wrong-main h3{font-size:1rem;margin:8px 0 5px}.wrong-main p{font-size:0.75rem;color:var(--muted)}.wrong-row>.text-btn{display:flex;align-items:center;gap:5px;color:#6c7c9c;font-size:0.8125rem;white-space:nowrap}.wrong-row .icon{width:13px;transform:rotate(180deg)}.empty-mascot{width:85px;height:85px;object-fit:contain;margin-bottom:16px}.selection-bar{display:none}.selection-bar.visible{display:flex;position:sticky;bottom:19px;background:#192f64;color:white;padding:16px 20px;border-radius:15px;margin-top:18px;box-shadow:0 7px 25px #13295326;align-items:center;justify-content:space-between;gap:15px;z-index:4}.selection-bar>span{font-size:0.8125rem;white-space:nowrap}.selection-bar b{font-size:1.125rem;margin-right:4px}.selection-bar>div{display:flex;align-items:center;gap:10px}.selection-bar .text-btn{font-size:0.75rem;color:#c4d0ec}.selection-bar .btn{font-size:0.8125rem;min-height:38px}.selection-bar .btn.ghost{background:#ffffff12;border-color:#ffffff20;color:#fff}.paper-check-list{margin:20px 0}.paper-check-list>div{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 0;border-top:1px solid var(--line)}.paper-check-list b{font-size:0.875rem}.paper-check-list select{font-size:0.8125rem;max-width:125px}
.parent-hero{display:flex;justify-content:space-between;align-items:center;background:#eaf1ff;border-radius:21px;padding:27px 31px;gap:20px}.parent-hero .eyebrow{color:#6b81b5;font-size:0.75rem}.parent-hero h2{font-size:1.625rem;letter-spacing:-.7px;margin:13px 0 9px}.parent-hero p{font-size:0.875rem;color:#7788a7;line-height:1.7}.parent-hero img{width:112px;height:119px;object-fit:contain}.parent-summary{display:grid;grid-template-columns:repeat(3,1fr);padding:26px 0;border-bottom:1px solid var(--line);margin-bottom:25px}.parent-summary article{padding:0 25px;border-right:1px solid var(--line)}.parent-summary article:first-child{padding-left:0}.parent-summary article:last-child{border:0}.parent-summary span{font-size:0.8125rem;color:var(--muted)}.parent-summary strong{display:block;font-size:1.875rem;margin-top:9px}.parent-summary small{font-size:0.8125rem;color:var(--muted);font-weight:450;margin-left:4px}.parent-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(240px,1fr);gap:20px}.parent-change,.parent-next{padding:25px}.parent-change .section-head{margin:0 0 23px}.parent-change h2{font-size:1.0625rem}.parent-change .badge{font-size:0.75rem}.growth-evidence{display:flex;gap:12px;margin:18px 0}.growth-evidence>span{background:#e9f6ef;color:#3c9873;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;flex-shrink:0}.growth-evidence .icon{width:15px}.growth-evidence b{font-size:0.9375rem}.growth-evidence p{font-size:0.75rem;color:#70819e;margin:5px 0}.growth-evidence small{font-size:0.75rem;color:#98a3b7}.data-caution{font-size:0.75rem!important;line-height:1.7;color:#9ca5b5;border-top:1px solid var(--line);padding-top:14px;margin-top:21px}.parent-next h3{font-size:1.3125rem;margin:17px 0 10px}.parent-next p{font-size:0.8125rem;line-height:1.8;color:var(--muted);margin-bottom:22px}.parent-next .btn{font-size:0.8125rem}.teacher-comment{display:flex;justify-content:space-between;align-items:start;gap:20px;padding:22px 25px;margin-top:20px}.teacher-comment h3{font-size:0.9375rem;margin-bottom:9px}.teacher-comment p{font-size:0.8125rem;color:var(--muted);line-height:1.8;white-space:pre-wrap}.teacher-comment>.badge{font-size:0.75rem;white-space:nowrap}.parent-detail{margin-top:22px}.parent-detail summary{font-size:0.8125rem;color:var(--muted);cursor:pointer}.subject-report{padding:22px;margin-top:13px}.subject-report .bar-row{display:grid;grid-template-columns:40px 1fr 40px;gap:20px;align-items:center;margin:12px 0;font-size:0.8125rem}.subject-report .progress{height:7px}.subject-report>p{font-size:0.75rem;margin-top:17px}.parent-print{font-size:0.8125rem;color:#6e80a5;display:flex;align-items:center;gap:7px;margin-top:23px}.parent-print .icon{width:16px}
/* Tutor controls live with the explanation. */
.pace-heading{display:flex;justify-content:space-between;align-items:center;font-size:0.8125rem;margin-top:22px}.pace-heading span{font-size:0.75rem;color:#96a2b9}.pace-picker{display:flex;gap:3px;padding:4px;background:#edf1f8;border-radius:11px;margin:11px 0 8px}.pace-picker button{flex:1;border-radius:8px;padding:9px 4px;font-size:0.8125rem;color:#8995ad;font-weight:600}.pace-picker button.active{background:white;color:var(--blue);box-shadow:0 2px 6px #1022500a}.pace-note{font-size:0.75rem;color:#8390aa;margin-bottom:20px}.lesson-card{padding:20px 17px;border-radius:15px;background:#f3f6ff;border:1px solid #e3eafb;animation:lesson-in .35s ease-out}.lesson-step-label{display:flex;align-items:center;justify-content:space-between;font-size:0.75rem;color:#7c91c2}.lesson-dots{display:flex;gap:4px}.lesson-dots i{width:5px;height:5px;border-radius:50%;background:#d7e0f4}.lesson-dots i.done{background:#7496ef}.lesson-card h3{font-size:1rem;line-height:1.5;margin:13px 0 10px}.lesson-card>p{font-size:0.875rem;line-height:1.85;white-space:pre-line;color:#576b93}.lesson-navigation{display:flex;align-items:center;justify-content:space-between;margin-top:14px;gap:5px}.lesson-navigation .btn{font-size:0.75rem;padding:8px 12px;min-height:36px}.lesson-navigation .text-btn{font-size:0.75rem}.tutor-quick{display:flex;justify-content:center;gap:8px;margin:18px 0}.tutor-quick button{border:1px solid #e1e7f2;border-radius:20px;padding:7px 10px;font-size:0.75rem;color:#8491a8}.concept-visual{padding:15px 10px;background:white;border-radius:10px;margin-top:18px}.fraction-blocks{display:grid;grid-template-columns:repeat(8,1fr);gap:3px}.fraction-cell{height:37px;border:1px solid #e0e6f2;background:#f8faff;border-radius:3px}.fraction-cell.blue-fill{background:#719afa;border-color:#719afa;animation:cell-fill .45s calc(var(--i)*.07s) both}.fraction-cell.pink-fill{background:#f6b4c8;border-color:#f6b4c8;animation:cell-fill .45s calc(var(--i)*.07s) both}.fraction-caption{display:flex;justify-content:center;gap:11px;font-size:0.9375rem;margin-top:13px;color:#8193b5}.fraction-caption b:first-child{color:#5a83d8}.fraction-caption b:nth-of-type(2){color:#d589a5}.fraction-caption strong{color:#425d9a}.concept-visual>p{font-size:0.75rem;text-align:center;color:#9aa5ba;margin-top:10px}.lesson-extra{margin-top:15px;border-top:1px solid #d9e3f8;padding-top:15px;color:#59739f;font-size:0.8125rem;line-height:1.8;white-space:pre-line}.tutor-ready{text-align:center;padding:5px 7px 15px}.tutor-ready img{height:125px;width:125px;object-fit:contain}.tutor-ready h3{font-size:1.0625rem;margin:13px 0 8px}.tutor-ready p{font-size:0.75rem;color:var(--muted);margin-bottom:20px}.voice-settings{border-top:1px solid var(--line);padding-top:17px;margin-top:20px}.voice-settings summary{font-size:0.75rem;color:#8592aa;cursor:pointer}.voice-settings summary .icon{width:13px;height:13px;vertical-align:middle;margin-right:6px}.voice-settings>div{display:flex;gap:8px;align-items:center;margin-top:13px}.voice-settings select{width:70px;font-size:0.75rem;padding:7px}.voice-settings .btn{font-size:0.75rem;min-height:32px;padding:6px 9px}.voice-settings .text-btn{font-size:0.75rem}.voice-settings>small{font-size:0.75rem;color:#9ba5b8;display:block;margin-top:12px}.tutor-disclaimer{line-height:1.7}.code-trace .tiny-label{font-size:0.75rem}.trace-line{font:12px/1.8 monospace;padding:4px 8px;border-radius:4px;margin-top:6px;color:#9faabe}.trace-line.active{background:#e7efff;color:#4168b3}.trace-values{display:flex;justify-content:space-around;margin:14px 0;font:12px monospace;color:#8c9bb8}.trace-values b{font-size:1.25rem;color:#5474b2;margin-left:7px}.code-trace .btn{font-size:0.75rem;min-height:32px}.code-trace>small{display:block;font-size:0.75rem;color:#95a0b4;line-height:1.5;margin-top:11px}.solo-check{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #dce6df;padding-top:17px;margin-top:19px;gap:15px}.solo-check>div{display:flex;align-items:center;gap:11px}.solo-check b{font-size:0.875rem}.solo-check p{font-size:0.75rem!important;margin:5px 0 0!important}.solo-check .btn{font-size:0.75rem;flex-shrink:0}.solo-check .icon{width:19px;flex-shrink:0}.rough-work{margin-top:22px;padding-top:18px;border-top:1px solid var(--line)}.rough-work summary{font-size:0.8125rem;color:#8996ae;cursor:pointer}.rough-work summary span{font-size:0.75rem;margin-left:6px;color:#aab2c4}.rough-work textarea{width:100%;height:105px;padding:15px;margin-top:13px;border:1px solid var(--line);border-radius:10px;resize:vertical;font:12px/1.7 inherit;background:#fbfcff}
/* Teacher tools stay outside the student's primary navigation. */
.teacher-table{overflow:auto}.teacher-table table{border-collapse:collapse;width:100%;min-width:500px;font-size:0.875rem}.teacher-table th{text-align:left;font-size:0.75rem;font-weight:500;color:var(--muted);background:#f2f5fa;padding:16px}.teacher-table td{padding:20px 16px;border-top:1px solid var(--line)}.teacher-table td:first-child{width:45px}.teacher-table small{display:block;font-size:0.75rem;color:var(--muted);margin-top:6px}.teacher-table .text-btn{font-size:0.75rem;color:var(--blue)}.teacher-actions{display:flex;align-items:center;justify-content:space-between;margin:20px 0 15px}.teacher-actions p{font-size:0.8125rem;color:var(--muted)}.teacher-actions .btn{font-size:0.8125rem}.assign-form h2{font-size:1.25rem}.assign-form fieldset{border:1px solid var(--line);border-radius:10px;padding:15px;font-size:0.8125rem}.assign-form legend{padding:0 6px;color:var(--muted)}.assign-form .assignment-check{display:flex;flex-direction:row;align-items:center;gap:9px;font-size:0.8125rem;font-weight:400;padding:7px 0}.assignment-check input{width:15px;height:15px;accent-color:var(--blue);margin:0}.assignment-question-picker summary{font-size:0.875rem;cursor:pointer}.assignment-question-picker>div{margin-top:15px;max-height:235px;overflow:auto;padding:12px 17px;background:#f6f8fc;border-radius:10px}.feedback-label{display:block;font-size:0.875rem;font-weight:650;margin:20px 0 10px}.feedback-label textarea{display:block;width:100%;border:1px solid var(--line);border-radius:10px;padding:12px;font:13px/1.7 inherit;margin-top:10px}.feedback-label~.btn{margin-top:15px}.earned-rewards{margin-bottom:21px;border:1px solid #eadfc9;background:#fffdf8;border-radius:13px;padding:15px 20px}.earned-rewards summary{font-size:0.8125rem;cursor:pointer;color:#9c824d}.earned-rewards summary>.icon{width:16px;vertical-align:middle;margin-right:5px}.earned-rewards summary>span{float:right;font-size:0.75rem}.earned-rewards>div{display:flex;gap:15px;align-items:center;margin-top:10px}.earned-rewards .reward-ring{width:49px;height:49px;margin:0;flex-shrink:0}.earned-rewards>div>div{flex:1}.earned-rewards b{font-size:0.875rem}.earned-rewards p{font-size:0.75rem;margin-top:5px;color:#9e937e}.earned-rewards .btn{font-size:0.75rem}.cogo-avatar.earned-frame:after{content:'';position:absolute;inset:8%;border:3px double #d8b96d;border-radius:50%;z-index:12;pointer-events:none}.rank-mode{display:flex;gap:20px;border-bottom:1px solid var(--line);margin-bottom:23px}.rank-mode button{padding:0 0 12px;font-size:0.875rem;color:#8b98ad}.rank-mode button.active{color:var(--blue);border-bottom:2px solid var(--blue);font-weight:700}.team-hero{text-align:center;padding:37px;max-width:720px;margin:0 auto;background:#f1f6ff}.team-hero h2{font-size:1.8125rem;margin:22px 0 13px;line-height:1.5}.team-hero>img{width:130px;height:140px;object-fit:contain}.team-hero p{font-size:0.875rem;color:var(--muted);line-height:1.8}.team-hero .progress{margin:26px auto 13px;max-width:420px;height:10px}.team-hero .btn{margin-top:20px}.team-hero>small{display:block;font-size:0.75rem;color:var(--muted);margin-top:15px}
/* Only achievement and learning changes get motion. */
@keyframes hero-float{0%,100%{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-9px) rotate(1deg)}}@keyframes small-float{0%,100%{transform:translateY(0) rotate(8deg)}50%{transform:translateY(-5px) rotate(12deg)}}@keyframes cell-fill{from{transform:scaleY(.2);opacity:.3}to{transform:scaleY(1);opacity:1}}@keyframes lesson-in{from{opacity:.35;transform:translateY(7px)}to{opacity:1;transform:none}}@keyframes ripple{from{width:10px;height:10px;opacity:.35}to{width:95px;height:95px;opacity:0}}.tap-ripple{position:fixed;z-index:9999;pointer-events:none;border:1px solid #698dee;background:#698dee16;border-radius:50%;transform:translate(-50%,-50%);animation:ripple .6s ease-out}.flying-point{position:fixed;z-index:999;pointer-events:none;width:25px;height:25px;display:grid;place-items:center;border-radius:50%;background:#ffe199;color:#b88c2e;font-size:0.8125rem;font-weight:850;box-shadow:0 2px 5px #c9943326}.focus-mode *,.focus-mode *:before,.focus-mode *:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.focus-mode .art-plus,.focus-mode .art-star,.focus-mode .hero-grid{display:none}
/* Print preview and physical A4 pages use the exact same markup. */
.print-dialog{width:min(1220px,96vw);max-width:none;height:92vh;max-height:92vh;border:0;border-radius:18px;padding:0;overflow:hidden;background:#f0f3f9}.print-dialog::backdrop{background:#12234385;backdrop-filter:blur(5px)}.print-header{height:90px;background:white;padding:19px 24px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:15px}.print-header h2{font-size:1.25rem}.print-header p{font-size:0.75rem;color:var(--muted);margin-top:7px}.print-header>div:last-child{display:flex;gap:12px;align-items:center}.print-header .btn{font-size:0.8125rem}.print-layout{display:grid;grid-template-columns:230px minmax(0,1fr);height:calc(100% - 90px)}.print-settings{background:white;padding:26px 21px;overflow:auto;border-right:1px solid var(--line)}.print-settings h3{font-size:1rem;margin-bottom:25px}.print-settings>label{display:block;font-size:0.8125rem;color:#637598;margin-bottom:22px}.print-settings select{display:block;margin-top:10px;font-size:0.8125rem;width:100%}.print-settings .print-check{display:flex;align-items:center;gap:9px;font-size:0.8125rem}.print-settings>p,.print-extra p{font-size:0.75rem;line-height:1.8;color:#8e9cb5}.print-extra{padding:18px 0;border-top:1px solid var(--line)}.print-extra summary{font-size:0.75rem;color:#7d8da9;cursor:pointer}.print-extra label{margin:15px 0 9px}.print-help{margin-top:20px!important}.paper-preview{padding:22px 16px 40px;overflow:auto;--paper-scale:.7}.paper-preview-sheet{width:calc(210mm * var(--paper-scale));height:calc(297mm * var(--paper-scale));margin:0 auto 23px;box-shadow:0 3px 20px #1b2e5715;background:white}.paper-preview-sheet>.paper-page{transform:scale(var(--paper-scale));transform-origin:top left}.print-loading{padding:40px;text-align:center;color:#8a98af;font-size:0.8125rem}.paper-page{width:210mm;height:297mm;padding:14mm;box-sizing:border-box;background:#fff;color:#263651;font-family:Pretendard,sans-serif;overflow:hidden;position:relative;flex-shrink:0;print-color-adjust:exact;-webkit-print-color-adjust:exact}.paper-header{height:22mm;border-bottom:.35mm solid #c6d3e9;display:flex;align-items:start;justify-content:space-between;gap:6mm}.paper-header>div:first-child{display:flex;align-items:center;gap:5mm}.paper-logo{font-size:23pt;letter-spacing:-2pt;font-weight:850;color:#335abe;line-height:1}.paper-logo>span{font-size:7pt;letter-spacing:0;color:#f1abbf;margin-left:2pt}.paper-header b{font-size:12pt;font-weight:700}.paper-header>div:last-child{text-align:right}.paper-header>div:last-child>span{font-size:10pt;display:block}.paper-header small{font-size:7pt;color:#92a1b7;display:block;margin-top:3mm}.paper-content{height:237mm;padding-top:7mm;display:grid;gap:8mm;box-sizing:border-box}.paper-columns-2{grid-template-columns:repeat(2,minmax(0,1fr))}.paper-columns-1{grid-template-columns:minmax(0,1fr)}.paper-column{height:230mm;min-width:0;overflow:visible}.paper-footer{height:10mm;display:flex;align-items:end;justify-content:space-between;color:#91a0b5;font-size:7pt;box-sizing:border-box;border-top:.2mm solid #dbe2ed;padding-top:3mm}.paper-question{padding-bottom:7mm;break-inside:avoid;font-size:10pt;line-height:1.6;position:relative}.paper-q-meta{display:flex;align-items:center;gap:3mm;margin-bottom:3mm}.paper-q-meta>b{font-size:16pt;color:#375ba6;line-height:1.2}.paper-q-meta>span{font-size:7pt;color:#8a9ab5;flex:1}.paper-q-meta>small{font-size:7pt;color:#93a0b4}.paper-question h3{font-size:10.5pt;line-height:1.65;margin:3mm 0 4mm;font-weight:650;word-break:keep-all;overflow-wrap:anywhere}.paper-passage{font-size:9pt;line-height:1.7;border:.2mm solid #dce3ef;border-radius:2mm;padding:3mm 4mm;white-space:pre-line;background:#f8faff}.paper-options{padding:0;margin:0;list-style:none;display:grid;gap:2mm}.paper-options li{display:flex;gap:3mm;line-height:1.6;font-size:9.5pt}.paper-input{font-size:9pt;margin:6mm 0;display:flex;gap:3mm;align-items:center}.paper-input span{height:6mm;width:40mm;border-bottom:.2mm solid #bbc6da}.paper-work{margin-top:5mm;border-top:.2mm dashed #e0e5ec;clear:both}.paper-work>span{font-size:7pt;color:#acb5c7;display:inline-block;padding-top:2mm}.paper-work.space-small{height:13mm}.paper-work.space-normal{height:30mm}.paper-work.space-large{height:52mm}.paper-answer{font-size:10pt;margin:3mm 0}.paper-answer b{font-size:8pt;display:inline-block;margin-right:2mm;color:#496ba7}.paper-explain{font-size:9pt;color:#6b7e9a;line-height:1.75;white-space:pre-line}.question-qr{display:flex;align-items:center;gap:3mm;margin-top:4mm;font-size:7pt;color:#8d9db7}.question-qr svg{width:17mm;height:17mm}.paper-condensed{font-size:90%}.paper-report-block{padding-bottom:6mm;font-size:10pt;line-height:1.7}.paper-report-block h2{font-size:18pt;letter-spacing:-.4pt;margin:2mm 0 3mm}.paper-kicker{font-size:8pt;color:#8b9fbc}.paper-report-block h3{font-size:12pt;margin:0 0 3mm}.paper-report-block p{font-size:9pt;color:#6e819d;white-space:pre-line}.paper-report-block small{font-size:7.5pt;color:#8c9bb1}.paper-report-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:3mm;background:#f0f5ff;padding:5mm;margin-top:5mm;border-radius:2mm;font-size:8pt;color:#7e91b2}.paper-report-stats strong{display:block;font-size:20pt;color:#375983;line-height:1.6}.paper-report-block table{width:100%;border-collapse:collapse;font-size:9pt}.paper-report-block th,.paper-report-block td{padding:2mm 4mm;border-bottom:.2mm solid #e1e6f0;text-align:left}.paper-report-block th{background:#f4f7fb;font-weight:550;color:#8a9db8}.paper-page.monochrome{color:#252525}.paper-page.monochrome *{color:#444!important;border-color:#d3d3d3!important}.paper-page.monochrome .paper-report-stats,.paper-page.monochrome th{background:#f6f6f6}.paper-page.monochrome .paper-logo>span{color:#999!important}.monochrome .paper-passage{background:#fafafa}.monochrome .paper-q-meta>span,.monochrome .paper-q-meta>small,.monochrome .paper-explain{color:#666}.monochrome .paper-work{border-color:#ccc}.monochrome .paper-work>span{color:#aaa}#printOutput{display:none}#printOutput.measuring{display:block;position:fixed;left:-10000px;top:0;width:210mm;visibility:hidden}
@media(min-width:761px) and (max-width:1150px){.v3-home-grid{grid-template-columns:minmax(0,1.5fr) minmax(225px,1fr);gap:15px}.focus-hero{padding:27px}.hero-copy h2{font-size:1.875rem}.today-card{padding:20px}.home-subjects .subject{gap:7px}.home-subjects .symbol{width:30px;height:30px}.parent-grid{grid-template-columns:minmax(0,1.3fr) minmax(220px,1fr)}}
@media(max-width:950px){.v3-home-grid{grid-template-columns:1fr}.focus-hero{min-height:320px}.hero-copy h2{font-size:2.25rem}.v3-hero-art{width:41%;right:15px;height:275px}.today-card{padding:20px 24px}.today-card ol{display:flex;gap:17px}.today-card li{flex:1;border-top:0;padding:10px 0 7px;gap:9px}.today-card li>.icon{display:none}.today-card>p{margin-bottom:8px}.today-foot{margin-top:12px}.parent-grid{grid-template-columns:1fr}.parent-next{display:grid;grid-template-columns:1fr auto;gap:8px 20px;align-items:center}.parent-next h3{grid-row:2;margin:4px 0}.parent-next p{grid-row:3;margin-bottom:0}.parent-next .btn{grid-column:2;grid-row:1/4}.topbar .effect-toggle span{display:none}}
@media(max-width:760px){.v3-welcome{gap:10px;margin-bottom:20px}.v3-welcome h1{font-size:1.5rem}.v3-welcome .eyebrow{font-size:0.75rem}.quiet-demo{font-size:0.75rem;padding:6px 8px}.focus-hero{min-height:305px;padding:25px 22px;border-radius:21px}.hero-copy h2{font-size:1.9375rem;letter-spacing:-1px;margin-top:16px}.hero-copy p{font-size:0.75rem;max-width:62%}.hero-start{font-size:0.8125rem;padding:10px 13px;margin-top:20px;min-height:40px}.hero-progress{max-width:160px;font-size:0.75rem;margin-top:19px}.v3-hero-art{width:46%;height:220px;right:-1px;bottom:5px}.art-plus{font-size:1.5625rem;right:16px;top:3px}.art-star{font-size:1.4375rem;top:3px}.today-card{padding:18px 17px}.today-card h2{font-size:1rem}.today-card>p,.today-foot{display:none}.today-card ol{margin-top:15px;gap:8px}.today-card li{align-items:start;gap:7px;padding:0}.step-no{width:22px;height:22px;border-radius:7px;font-size:0.75rem;flex-shrink:0}.today-card li b{font-size:0.75rem;line-height:1.5;display:block}.today-card li small{font-size:0.75rem;margin-top:3px}.home-subjects .subject{flex-direction:column;gap:8px;padding:4px 0}.home-subjects .symbol{width:42px;height:42px;font-size:1.25rem;border-radius:13px}.home-subjects{gap:5px;margin-top:19px;margin-bottom:22px}.home-rank-strip{padding:5px 11px;gap:7px;min-height:80px}.home-rank-strip>.cogo-avatar{width:68px;height:68px}.home-rank-strip span{font-size:0.75rem}.home-rank-strip strong{font-size:1.375rem;margin-top:4px}.home-rank-strip strong small{font-size:0.75rem;margin-left:5px}.home-rank-strip .rank-strip-link{font-size:0.75rem;gap:3px}.home-rank-strip .rank-strip-link .icon{width:11px}.effect-toggle{padding:6px 4px}.effect-toggle span{display:none}.topbar .profile-avatar{display:none}.topbar{padding:0 16px}.topbar .tutor-toggle{font-size:0.75rem;padding:7px 8px;gap:4px}.topbar .tutor-toggle .icon{width:14px}.mobile-logo{font-size:1.8125rem}.learning-source select{font-size:0.75rem;padding:7px 9px}.welcome.flex{gap:13px;align-items:center}.learning-tabs{gap:20px;margin-top:7px;margin-bottom:18px}.learning-tabs button{font-size:0.8125rem;padding-bottom:13px}.sample-label{font-size:0.75rem;padding:9px 11px;line-height:1.6;margin-bottom:18px}.learning-stats{gap:9px;margin-bottom:17px}.learning-stats article{padding:17px 13px}.learning-stats span{font-size:0.75rem}.learning-stats strong{font-size:1.8125rem;margin-top:8px}.learning-stats strong small{font-size:0.75rem}.next-learning{padding:19px 17px;display:block}.next-learning>div{gap:12px}.next-learning img{width:55px;height:73px}.next-learning h2{font-size:1.0625rem;margin-top:8px;line-height:1.5}.next-learning p{font-size:0.75rem}.next-learning>.btn{width:100%;margin-top:17px;font-size:0.8125rem}.learning-records{padding:19px 16px}.learning-record{gap:9px}.learning-record b{font-size:0.8125rem}.learning-record small{font-size:0.75rem}.learning-record .badge{font-size:0.75rem;white-space:nowrap}.mobile-teacher{display:block}.wrong-intro{gap:14px;margin-bottom:20px}.wrong-intro h2{font-size:1.25rem}.wrong-intro p{font-size:0.75rem;line-height:1.6;max-width:230px}.wrong-count{font-size:1.6875rem}.wrong-count small{font-size:0.75rem}.wrong-filters{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:7px}.wrong-filters select{font-size:0.75rem;padding:9px 8px;width:100%;min-width:0}.wrong-list-head{padding:14px 15px;font-size:0.75rem}.wrong-row{padding:18px 15px;gap:12px}.wrong-main h3{font-size:0.9375rem;line-height:1.5}.wrong-main>div{gap:5px;font-size:0.75rem}.status-mini{font-size:0.75rem;margin-left:0}.wrong-main p{font-size:0.75rem}.wrong-row>.text-btn{font-size:0.75rem}.wrong-row>.text-btn .icon{display:none}.selection-bar.visible{bottom:78px;padding:13px;display:block;border-radius:13px}.selection-bar>span{font-size:0.75rem;display:block;margin-bottom:9px}.selection-bar b{font-size:1rem}.selection-bar>div{gap:7px;justify-content:space-between}.selection-bar .text-btn{font-size:0.75rem;max-width:90px;text-align:left;line-height:1.5}.selection-bar .btn{font-size:0.75rem;padding:8px 10px;min-height:34px;white-space:nowrap}.selection-bar .btn .icon{width:14px}.parent-hero{padding:22px 19px;gap:8px}.parent-hero h2{font-size:1.3125rem;line-height:1.5;margin:10px 0 8px}.parent-hero .eyebrow{font-size:0.75rem}.parent-hero p{font-size:0.75rem}.parent-hero img{width:79px;height:104px}.parent-summary{padding:22px 0;margin-bottom:19px}.parent-summary article{padding:0 11px}.parent-summary span{font-size:0.75rem;line-height:1.5;display:block}.parent-summary strong{font-size:1.625rem}.parent-summary small{font-size:0.75rem}.parent-change,.parent-next{padding:21px}.parent-change h2{font-size:1rem}.parent-next{display:block}.parent-next h3{font-size:1.25rem;margin:14px 0 10px}.parent-next .btn{margin-top:17px}.teacher-comment{padding:20px;display:block}.teacher-comment .badge{margin-top:12px;display:inline-flex}.teacher-comment p{font-size:0.75rem}.solo-check{display:block}.solo-check>.btn{width:100%;margin-top:14px}.solo-check b{font-size:0.8125rem}.solo-check p{font-size:0.75rem!important}.teacher-table table{min-width:450px;font-size:0.75rem}.teacher-table th,.teacher-table td{padding:15px 12px}.teacher-actions .btn{font-size:0.75rem;padding:10px 12px}.teacher-actions p{font-size:0.75rem}.earned-rewards{padding:14px}.earned-rewards summary{font-size:0.75rem}.earned-rewards summary>span{font-size:0.75rem}.earned-rewards>div{flex-wrap:wrap}.earned-rewards .btn{margin-left:auto}.earned-rewards p{font-size:0.75rem}.team-hero{padding:25px}.team-hero h2{font-size:1.5rem}.print-dialog{width:100vw;height:100dvh;max-height:none;border-radius:0;max-width:none;margin:0}.print-header{height:81px;padding:15px;gap:8px}.print-header h2{font-size:1rem}.print-header p{font-size:0.75rem;line-height:1.5}.print-header>div:last-child{gap:5px}.print-header .btn{font-size:0.75rem;padding:9px 10px;min-height:36px}.print-header .btn .icon{display:none}.print-header .icon-btn{width:29px;height:29px}.print-layout{height:calc(100% - 81px);display:flex;flex-direction:column}.print-settings{padding:16px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px 9px;flex-shrink:0;max-height:210px;border-right:0;border-bottom:1px solid var(--line)}.print-settings h3{display:none}.print-settings>label{font-size:0.75rem;margin:0;min-width:0}.print-settings select{font-size:0.75rem;padding:6px 4px;margin-top:7px}.print-settings .print-check{font-size:0.75rem;grid-column:1/2;gap:6px;white-space:nowrap}.print-extra{padding:0;border:0;grid-column:2/4}.print-extra summary{font-size:0.75rem}.print-extra .print-check{margin-top:12px}.print-settings .print-help{display:none}.print-settings>p{grid-column:1/-1;font-size:0.75rem}.paper-preview{padding:16px;flex:1;min-height:0}.paper-preview-sheet{margin-bottom:18px}}
@media(max-width:360px){.v3-welcome h1{font-size:1.3125rem}.quiet-demo{font-size:0.75rem}.hero-copy h2{font-size:1.75rem}.hero-copy p{font-size:0.75rem}.v3-hero-art{width:44%;bottom:5px;height:190px}.home-rank-strip strong small{display:block;margin:3px 0 0;font-size:0.75rem}.home-rank-strip .rank-strip-link{font-size:0.75rem}.today-card{padding:15px 13px}.today-card li{gap:4px}.today-card li b{font-size:0.75rem}.today-card li small{font-size:0.75rem}.parent-hero h2{font-size:1.125rem}.parent-hero img{width:62px}.learning-tabs{gap:15px}.learning-tabs button{font-size:0.75rem}.selection-bar>div{gap:5px}.selection-bar .btn{font-size:0.75rem;padding:8px}.print-header h2{font-size:0.9375rem}.print-header .btn{font-size:0.75rem;padding:8px}}
@media print{@page{size:A4;margin:0}html,body{margin:0!important;padding:0!important;background:white!important;width:210mm}body:has(#printOutput>.paper-page)>:not(#printOutput){display:none!important}body>#printOutput{display:block!important;position:static!important;visibility:visible!important;width:210mm!important}dialog,dialog::backdrop{display:none!important}#printOutput>.paper-page{break-after:page;page-break-after:always;margin:0!important;box-shadow:none!important;transform:none!important}#printOutput>.paper-page:last-child{break-after:auto;page-break-after:auto}.paper-page *{animation:none!important;transition:none!important}}

.review-next{margin-top:16px;font-size:0.8125rem}

.today-step{display:flex;align-items:center;gap:12px;width:100%;text-align:left}.today-step>div{flex:1;min-width:0}.today-step>.icon{width:14px;color:#a7b3cb;transform:rotate(180deg)}.today-step:hover b{color:var(--blue)}@media(max-width:950px){.today-step{gap:9px}.today-step>.icon{display:none}}@media(max-width:760px){.today-step{align-items:start;gap:7px}}@media(max-width:360px){.today-step{gap:4px}}

/* Shared readable type and colors. Print keeps its own physical type sizes. */
:root{--blue:#3853d4;--blue-soft:#eaf0ff;--ink:#192843;--muted:#53647d;--line:#dce3ef;--surface:#fff;--bg:#f5f7fc;--nav:#17243e;--surface-soft:#eef2f9;--surface-raised:#fff;--on-accent:#fff;--nav-width:15rem;--side:var(--nav-width);--tutor:22rem;color-scheme:light}
html{scroll-padding-top:6rem}body{font-size:1rem;line-height:1.65}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #708ffa;outline-offset:3px}::placeholder{color:var(--muted);opacity:.85}select option{background:var(--surface);color:var(--ink)}.muted,.tiny-label{color:var(--muted)}h1{font-size:2rem}.welcome h1{font-size:clamp(1.6rem,2.2vw,2rem)}.content{max-width:1360px;padding:32px clamp(22px,3vw,52px) 40px}.btn{font-size:.9375rem;min-height:46px;line-height:1.45}.text-btn{font-size:.875rem}.icon-btn{min-width:40px;min-height:40px}.badge{font-size:.8125rem;max-width:100%}.badge.gold{color:#765006;background:#fff2ca}.badge.green{color:#146749;background:#e4f4ea}.badge.pink{color:#92335f;background:#ffeaf3}.small,small{font-size:.875rem}.page-footer,.page-footer button{font-size:.75rem;line-height:1.7;color:var(--muted)}.page-footer>div:last-child{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.tutor-disclaimer{font-size:.75rem!important;color:var(--muted)!important}.tutor-toggle{font-size:.8125rem;min-height:40px}.tiny-label{letter-spacing:0}.sidebar-note,.nav-caption{color:#acbad5}.nav-item small{font-size:.75rem;color:#b4c2df}.nav-item{font-size:.9375rem;white-space:normal!important;line-height:1.5}.sidebar .nav-item{padding:12px 13px;min-height:48px}.nav-item.active small{color:#e0e8ff}.sidebar .nav-caption{font-size:.75rem;margin:18px 14px 9px}.sidebar .nav-item:hover{background:#2a3b5a}.sidebar .nav-item.active{background:#354f80}.sidebar .side-bottom .text-btn{font-size:.8125rem;color:#c5d2ec}.sidebar-note{font-size:.75rem!important;line-height:1.8}
.topbar{background:color-mix(in srgb,var(--bg) 94%,transparent);height:78px;padding:0 27px;gap:20px}.topbar-start{display:flex;align-items:center;gap:16px;min-width:0}.topbar>.flex{gap:14px;flex-shrink:0}.breadcrumb{font-size:.875rem}.settings-button{display:flex;align-items:center;justify-content:center;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:11px;min-height:42px;padding:8px 13px;font-size:.875rem;font-weight:650;color:var(--ink);flex-shrink:0}.settings-button .icon{width:19px;height:19px}.settings-button:hover{border-color:var(--blue)}.menu-button{color:var(--muted);border:1px solid transparent}.menu-button:hover{border-color:var(--line)}.coin{font-size:.875rem;color:#80600e;white-space:nowrap}.coin-circle{font-size:.75rem}.topbar .profile-avatar{width:36px;height:36px}.skip{left:20px;z-index:250}.topbar .demo-switch{display:none}
/* Navigation can be pinned, peeked with a mouse, or opened on touch screens. */
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/* A single, stronger invitation to learn. */
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/* Dark is a full palette, not an inverted screenshot. */
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:root{--top-height:64px;--bottom-height:0px;--board-row:48px;--desk-gap:14px}
@media screen{
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 .content{width:100%;max-width:1600px;min-height:0;flex:1;overflow:auto;overscroll-behavior:contain;padding:20px 26px 12px;scrollbar-gutter:stable}
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}
/* Home: welcome, action, subjects, and a quiet rank summary. */
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body[data-view=home] .compact-footer{margin-top:0}
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.board-tools{display:flex;align-items:center;gap:8px;position:relative;flex:none;z-index:5}.board-search{position:relative;flex:1;min-width:130px}.board-search>.icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:18px;color:var(--muted)}.board-search input{width:100%;min-height:40px;height:40px;font-size:.8125rem;padding:7px 10px 7px 37px;border-radius:9px}.board-filters{display:flex;gap:8px;flex:none}.board-filters label>span{display:none}.board-filters select{font-size:.8125rem;padding:6px 22px 6px 10px;min-height:40px;height:40px;border-radius:9px;max-width:140px}.board-filter-toggle,.filter-popup-title,.filter-popup-done{display:none}.board-saved{border:1px solid var(--line);background:var(--surface);border-radius:9px;display:flex;align-items:center;gap:5px;height:40px;padding:5px 10px;font-size:.8125rem;white-space:nowrap}.board-saved .icon{width:17px;height:17px}.board-saved.active{background:var(--blue-soft);color:var(--blue);border-color:var(--blue)}.board-reset{height:40px;min-height:40px;width:36px;min-width:36px}.board-reset .icon{width:17px;height:17px}
.board-card{border:1px solid var(--line);border-radius:16px;background:var(--surface);overflow:hidden;min-height:0;flex:1;display:flex;flex-direction:column;box-shadow:0 5px 25px #13254304}.board-viewport{flex:1;min-height:0;overflow:auto;position:relative;overscroll-behavior:contain;background:linear-gradient(var(--surface) 60%,var(--bg))}.problem-table{width:100%;table-layout:fixed;border-collapse:collapse;margin:0;font-size:.875rem}.problem-table th{height:39px;background:var(--surface-soft);font-size:.75rem;color:var(--muted);font-weight:600;text-align:center;padding:0 6px;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:2}.problem-table td{height:var(--board-row);padding:0 6px;border-bottom:1px solid var(--line);text-align:center;vertical-align:middle;background:var(--surface);line-height:1.4;font-size:.8125rem}.problem-table .cell-title{text-align:left;padding-left:12px}.problem-table tbody tr{cursor:pointer}.problem-table tbody tr:hover td,.problem-table tbody tr:focus-within td{background:var(--blue-soft)}.problem-table tbody tr:hover .board-title{color:var(--blue)}.col-number{width:58px}.col-subject{width:74px}.col-grade{width:65px}.col-level{width:76px}.col-type{width:80px}.col-state{width:110px}.col-save{width:50px}.cell-number{color:var(--muted);font-variant-numeric:tabular-nums;font-size:.75rem!important}.cell-grade,.cell-type{color:var(--muted)}.cell-title button{display:flex;align-items:baseline;width:100%;gap:14px;padding:10px 0;text-align:left;min-height:40px;max-height:var(--board-row);min-width:0}.board-title{font-size:.9375rem;font-weight:650;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0;line-height:1.5}.board-unit{font-size:.75rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:0 1 auto;max-width:42%}.board-mobile-meta{display:none}.board-subject{font-size:.75rem;font-weight:700;padding:4px 8px;border-radius:6px;color:var(--subject-color);background:var(--subject-tint);white-space:nowrap}.level-dot{display:inline-block;width:5px;height:5px;border-radius:50%;background:#4e8b75;margin-right:6px;vertical-align:middle}.level-dot.challenge{background:#ba8642}.board-state{display:inline-flex;gap:5px;align-items:center;font-size:.75rem;color:var(--muted);white-space:nowrap}.board-state .icon{width:15px;height:15px}.board-state.done{color:#16734f;font-weight:650}.board-state.retry{color:#a54e21;font-weight:650}.cell-save .icon{height:17px;width:17px}.cell-save .icon-btn{min-width:34px;min-height:34px;width:34px;height:34px;margin:auto;position:static;color:var(--muted)}.cell-save .saved{color:#997011;background:#fff3ce}.cell-save .saved .icon{fill:#f9d97866}
.board-pagination{min-height:56px;flex:none;display:flex;gap:12px;align-items:center;justify-content:space-between;padding:8px 18px;border-top:1px solid var(--line);background:var(--surface);z-index:3}.page-range,.page-fit{color:var(--muted);font-size:.75rem;white-space:nowrap;flex:1}.page-fit{text-align:right}.page-range>span{opacity:.85}.page-buttons{display:flex;gap:5px;justify-content:center;flex:none}.page-buttons button{width:34px;height:34px;border-radius:8px;font-size:.8125rem;font-weight:650;display:grid;place-items:center;transition:background .2s,transform .2s}.page-buttons button:not(.active):hover:not(:disabled){background:var(--blue-soft)}.page-buttons button.active{background:var(--blue);color:white;box-shadow:0 3px 8px #294ab123}.page-buttons .icon{width:16px;height:16px}.page-buttons button:disabled{opacity:.3}.board-empty{position:absolute;inset:40px 0 0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;padding:20px}.board-empty[hidden]{display:none}.board-empty>.icon{color:var(--muted);width:28px;height:28px}.board-empty h2{font-size:1rem}.board-empty p{font-size:.8125rem;color:var(--muted)}.board-empty .btn{margin-top:8px;font-size:.8125rem}
/* Study screen: fixed actions; only a long passage or enlarged text needs a local scroll. */
body[data-view=solve] .solver-head{display:flex;justify-content:space-between;align-items:center;margin:0 0 12px;gap:12px;flex:none}body[data-view=solve] .solver-head .back-btn{margin:0}body[data-view=solve] .solver-head>.flex{gap:10px}body[data-view=solve] .question-panel{min-height:0;flex:1;display:flex;flex-direction:column;padding:22px 26px 18px;max-width:1000px;width:100%;align-self:center;overflow:hidden}body[data-view=solve] .question-reading{min-height:0;overflow:auto;flex:1;padding:0 4px 8px;overscroll-behavior:contain;scrollbar-gutter:stable}body[data-view=solve] .question-panel h2{font-size:1.45rem;margin:13px 0 17px}body[data-view=solve] .question-text{font-size:1.125rem;margin:0 0 16px;line-height:1.7}body[data-view=solve] .passage{margin:0 0 16px;padding:15px 18px;font-size:1rem;line-height:1.75}body[data-view=solve] .answer{padding:12px 14px;font-size:1rem;min-height:48px;transition:background .2s,border-color .2s,box-shadow .2s}body[data-view=solve] .answers{gap:8px}body[data-view=solve] .question-actions{margin-top:12px;padding-top:13px;border-top:1px solid var(--line);flex:none;flex-wrap:nowrap}body[data-view=solve] .rough-work{margin:13px 0 0}body[data-view=solve] .rough-work summary{padding:5px 0}body[data-view=solve] #answerResult[hidden]{display:none}
.answer-feedback{padding:0;border:1px solid var(--line);background:var(--surface);color:var(--ink);width:min(640px,calc(100vw - 28px));max-height:88dvh;border-radius:24px;box-shadow:0 28px 100px #0916314d}.answer-feedback[open]{display:flex;flex-direction:column}.answer-feedback::backdrop{background:#0b15336b;backdrop-filter:blur(7px)}.answer-feedback>header{padding:20px 25px;display:flex;align-items:center;justify-content:space-between;gap:15px;border-bottom:1px solid var(--line);flex:none}.answer-feedback>header .eyebrow{font-size:.6875rem;color:var(--muted)}.answer-feedback>header h2{font-size:1.3rem;margin-top:6px}.answer-feedback #feedbackBody{padding:0 23px 23px;overflow:auto;min-height:0}.answer-feedback .result-box{margin-top:18px;padding:19px}.answer-feedback .result-box h3{font-size:1.0625rem}.answer-feedback .result-box p{font-size:.9375rem;line-height:1.75}.answer-feedback .solo-check{margin-top:14px;padding:16px;gap:14px}.answer-feedback .solo-check b{font-size:.9rem}.answer-feedback .solo-check p{font-size:.8rem}.answer-feedback .conversion-panel{padding:16px;margin-top:14px;gap:14px}.answer-feedback .conversion-panel h3{font-size:.95rem}.answer-feedback .conversion-panel p{font-size:.8rem}.answer-feedback .conversion-panel>div>span{font-size:.7rem}.answer-feedback .conversion-panel .btn{font-size:.8rem;min-height:42px}.success-motion{display:flex;justify-content:center;padding:18px 0 0;height:76px}.success-motion svg{width:58px;height:58px;fill:#e7f7ef;stroke:#248459;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.success-motion circle{stroke-dasharray:176;animation:check-ring .6s ease-out both}.success-motion path{fill:none;stroke-dasharray:45;animation:check-line .4s .3s ease-out both}.answer-feedback[open]{animation:feedback-enter .4s cubic-bezier(.16,1,.3,1)}
/* Code has its own workspace, editor, and output instead of growing the page. */
.coding-desk>.back-btn{margin:0 0 8px;flex:none}.coding-desk>.welcome{margin:0 0 10px;flex:none}.coding-desk>.welcome h1{font-size:1.4rem;margin:0!important}.coding-desk>.lab-tools{margin-bottom:12px;flex:none}.coding-desk>.lab-layout{min-height:0;flex:1;grid-template-columns:minmax(230px,.9fr) minmax(320px,1.3fr)}.coding-desk .lab-story{min-height:0;overflow:auto;padding:20px}.coding-desk .lab-work{display:flex;flex-direction:column;min-height:0;gap:12px}.coding-desk .editor{display:flex;flex-direction:column;min-height:180px;flex:1}.coding-desk .code-wrap{flex:1;min-height:0;overflow:auto}.coding-desk .code-input{min-height:0;resize:none;overflow:auto}.coding-desk .editor-toolbar,.coding-desk .editor-bottom{flex:none}.coding-desk .console{flex:0 0 135px;min-height:0;margin:0;padding:15px 18px;overflow:auto}.coding-desk .console-output{font-size:.8rem;margin-top:7px}.coding-desk .lab-story h2{font-size:1.3rem}.coding-desk .lab-story p{font-size:.9375rem}
/* Ranking brings the next goal and nearby participants into one view. */
.ranking-desk .welcome{margin-bottom:10px;display:flex;align-items:center}.ranking-desk .welcome .eyebrow,.ranking-desk .welcome p{display:none}.ranking-desk .welcome h1{margin:0!important;font-size:1.6rem}.ranking-desk .rank-mode{margin:0 0 8px;flex:none}.ranking-desk .rank-toolbar{margin:0 0 12px;flex:none}.rank-overview{display:grid;grid-template-columns:1.7fr 1fr;gap:12px;margin-bottom:14px;flex:none}.rank-overview .rank-hero{min-height:0;margin:0;padding:18px 22px;border-radius:18px}.rank-overview .rank-hero h2{font-size:1.45rem;margin:10px 0}.rank-overview .rank-hero p,.rank-overview .rank-hero>div>small{display:none}.rank-overview .rank-hero .btn{font-size:.875rem;margin-top:5px;min-height:40px;padding:8px 14px}.rank-overview .rank-hero .hero-tag{font-size:.7rem}.rank-overview .rank-hero-avatar{width:130px;right:18px;bottom:12px}.rank-overview .rank-hero-avatar .cogo-avatar{height:130px;width:110px}.rank-overview .rank-label{font-size:.75rem;bottom:0}.rank-overview .rank-metrics{margin:0;display:flex;flex-direction:column;justify-content:space-around;border:1px solid var(--line);border-radius:18px;background:var(--surface);padding:10px 18px;gap:8px}.rank-overview .rank-metrics>div{display:flex;justify-content:space-between;align-items:center;padding:0;border:0;gap:8px}.rank-overview .rank-metrics strong{font-size:1.25rem;margin:0;white-space:nowrap}.rank-overview .rank-metrics span{font-size:.75rem}.ranking-desk .rank-main-grid{min-height:0;flex:1;gap:14px;grid-template-columns:minmax(0,1fr) 260px}.ranking-desk .ranking-board{display:flex;flex-direction:column;overflow:hidden;min-height:0;padding:14px 18px}.ranking-desk .ranking-board .section-head{margin:0 0 8px;flex:none;gap:10px}.ranking-desk .ranking-board .section-head h2{font-size:1rem}.ranking-desk .ranking-board .section-head p{font-size:.75rem;margin-top:3px}.ranking-desk .rank-table-head{flex:none;min-height:32px;padding:7px 6px}.rank-rows-scroll{min-height:0;flex:1;overflow:auto;overscroll-behavior:contain}.ranking-desk .rank-row:not(.rank-table-head){min-height:57px;padding:5px 6px}.ranking-desk .rank-row .rank-face{height:45px;width:45px}.ranking-desk .rank-person b{font-size:.875rem}.ranking-desk .rank-person .badge{font-size:.625rem}.ranking-desk .rank-board-note{flex:none;font-size:.6875rem;padding:8px 0 0}.ranking-desk .rank-side{overflow:auto;min-height:0}.ranking-desk .rank-reward{display:none}.ranking-desk .rank-podium{padding:15px 12px}.ranking-desk .rank-podium h3{font-size:.9rem}.ranking-desk .podium{margin-top:15px;gap:3px}.ranking-desk .podium-person b{font-size:.6875rem}.ranking-desk .podium-person .cogo-avatar{width:65px;height:92px}.ranking-desk .podium-base{height:40px}.ranking-desk .podium-person.pos-1 .podium-base{height:65px}
/* Theme-sensitive surfaces. */
[data-theme=dark] .board-subject{background:color-mix(in srgb,var(--subject-tint) 14%,#1a2741);color:color-mix(in srgb,var(--subject-tint) 82%,white)}[data-theme=dark] .board-state.done{color:#89dcaf}[data-theme=dark] .board-state.retry{color:#f4c28e}[data-theme=dark] .cell-save .saved{color:#f2ce81;background:#413b2b}[data-theme=dark] .success-motion svg{fill:#213e34;stroke:#93e9b4}
/* Motion has a hierarchy: entrance, response, reward; no decorative motion while reading. */
@keyframes desk-float{0%,100%{transform:translateY(0) rotate(-5deg)}50%{transform:translateY(-13px) rotate(2deg)}}
@keyframes desk-float-small{0%,100%{transform:translateY(-4px) rotate(6deg)}50%{transform:translateY(7px) rotate(-4deg)}}
@keyframes token-float{0%,100%{translate:0 0}50%{translate:0 -10px}}
@keyframes orbit-spin{to{rotate:360deg}}
@keyframes spark-breathe{0%,100%{opacity:.5;scale:.8}50%{opacity:1;scale:1.2}}
@keyframes grid-drift{to{background-position:64px 64px}}
@keyframes action-shine{0%,65%{transform:translateX(-180%) skewX(-20deg)}85%,100%{transform:translateX(400%) skewX(-20deg)}}
@keyframes check-ring{from{stroke-dashoffset:176}to{stroke-dashoffset:0}}
@keyframes check-line{from{stroke-dashoffset:45}to{stroke-dashoffset:0}}
@keyframes feedback-enter{from{opacity:0;transform:translateY(30px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}
.motivation-grid{animation:grid-drift 28s linear infinite}.art-ring:after{animation:orbit-spin 28s linear infinite}.art-spark{animation:spark-breathe 4s ease-in-out infinite}.spark-two{animation-delay:-2s}.btn.start-one:after{content:'';position:absolute;inset:-30% auto -30% 0;width:35%;background:linear-gradient(90deg,transparent,#fff6,transparent);animation:action-shine 6s ease-in-out infinite;pointer-events:none}.btn:active:not(:disabled),.subject:active,.page-buttons button:active:not(:disabled){transform:scale(.965)}.nav-item.active .icon{animation:feedback-enter .35s ease-out}.bottom-nav button.active .icon{animation:feedback-enter .35s ease-out}.answer.selected{box-shadow:0 0 0 2px color-mix(in srgb,var(--blue) 12%,transparent)}
@media(min-width:761px) and (max-width:1250px){.board-filters{gap:5px}.board-filters select{max-width:115px;padding-right:17px}.board-search{min-width:130px}.board-tools{gap:5px}.col-type{display:none}.cell-type{display:none}.board-unit{display:none}.board-subjects button{padding:9px 17px}.home-subjects .subject>.icon{display:none}.home-subjects .subject{padding:8px;gap:7px}.home-rank-strip>div:not(.cogo-avatar){gap:12px}.ranking-desk .rank-main-grid{grid-template-columns:1fr}.ranking-desk .rank-side{display:none}}
@media(max-width:1050px){.board-filter-toggle{display:flex;align-items:center;gap:5px;height:40px;padding:5px 11px;border:1px solid var(--line);background:var(--surface);border-radius:9px;font-size:.8125rem;white-space:nowrap}.board-filter-toggle>.icon{width:16px}.board-filter-toggle #filterBadge:not(:empty){display:grid;place-items:center;background:var(--blue);color:white;border-radius:50%;width:18px;height:18px;font-size:.65rem}.board-filters{display:none;position:absolute;right:0;top:49px;width:min(360px,100%);padding:18px;grid-template-columns:1fr 1fr;background:var(--surface);border:1px solid var(--line);box-shadow:0 15px 45px #14224030;border-radius:16px;gap:14px;max-height:calc(100dvh - 220px);overflow:auto;z-index:10}.board-filters.open{display:grid}.board-filters label{min-width:0}.board-filters label>span{display:block;font-size:.75rem;margin-bottom:6px;color:var(--muted)}.board-filters select{width:100%;max-width:none;font-size:.8125rem}.filter-popup-title{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between}.filter-popup-title b{font-size:1rem}.filter-popup-title .icon-btn{height:28px;min-height:28px}.filter-popup-done{display:block;grid-column:1/-1;min-height:40px;font-size:.8125rem}.board-unit{display:none}.home-rank-strip strong small{display:none}.hero-goal p{display:none}.home-subject-head>span{display:none}.coding-desk>.lab-layout{grid-template-columns:minmax(170px,.8fr) minmax(250px,1.2fr)}.rank-overview{grid-template-columns:1fr}.rank-overview .rank-metrics{display:none}}
@media(max-width:760px){
 :root{--top-height:58px;--bottom-height:calc(65px + env(safe-area-inset-bottom));--desk-gap:10px}
 .content{padding:12px 12px 7px}.topbar{padding:0 13px}.topbar-start{gap:7px}.topbar .mobile-logo{font-size:1.8rem}.settings-button{min-height:36px;padding:6px 9px}.menu-button{min-height:36px;height:36px;min-width:34px;width:34px}.topbar>.flex{gap:6px}.bottom-nav{height:var(--bottom-height);padding:8px 5px calc(7px + env(safe-area-inset-bottom))}.bottom-nav button{font-size:.6875rem;min-height:44px;gap:3px}.bottom-nav .icon{width:20px;height:20px}.nav-backdrop{top:0}.compact-footer{font-size:.625rem;padding-top:7px;gap:5px}.compact-footer button{font-size:.625rem}.compact-footer>div{gap:9px!important}.footer-demo{display:none}.compact-footer>div button[data-action=reset]{display:none}
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/* Compact avatar fitting room and a dense gallery. */
.closet-layout6{display:grid;grid-template-columns:245px minmax(0,1fr);gap:18px;flex:1;min-height:0}.closet-preview.fitting-room{position:relative;top:auto;padding:17px;display:flex;flex-direction:column;min-height:0;text-align:center;border-radius:18px;overflow:hidden}.preview-heading6{display:flex;align-items:center;justify-content:space-between;gap:7px;flex:none}.preview-heading6 h2{font-size:.9375rem}.preview-heading6 .badge{font-size:.6875rem;padding:3px 7px}.closet-avatar6{position:relative;display:grid;place-items:center;flex:1;min-height:125px;padding:0;width:100%;isolation:isolate}.closet-avatar6 .cogo-avatar{height:100%;max-height:270px;max-width:100%;aspect-ratio:1;z-index:2}.preview-platform6{width:85%;aspect-ratio:2.6;border-radius:50%;position:absolute;bottom:5%;background:radial-gradient(ellipse,#9baff54d,#92a7fb11 65%,transparent 66%);z-index:0}.avatar-click-tip{position:absolute;bottom:0;left:0;right:0;color:var(--muted);font-size:.625rem}.closet-preview .base-choice{margin:15px 0 12px;flex:none}.closet-preview .base-choice button{font-size:.75rem;min-height:32px;padding:5px 7px}.preview-info6{flex:none;min-height:140px;display:flex;flex-direction:column;align-items:center;gap:9px;justify-content:center}.preview-info6>b{font-size:.875rem;max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.preview-info6>span{font-size:.6875rem;color:var(--muted);line-height:1.5}.preview-info6>.btn{font-size:.75rem;min-height:40px;padding:8px}.preview-info6>div{display:flex;gap:12px;justify-content:center}.preview-info6 .text-btn{font-size:.7rem}.preview-note6{font-size:.625rem;color:var(--muted);margin-top:12px;flex:none}.closet-gallery6{display:flex;flex-direction:column;gap:12px;min-height:0;min-width:0}.closet-tabs6{display:flex;align-items:center;justify-content:space-between;gap:10px;flex:none}.closet-tabs6 .segmented button{font-size:.8125rem;min-height:35px;padding:7px 16px}.closet-tabs6>span{font-size:.8125rem;color:var(--muted)}.closet-tools6{display:flex;gap:7px;flex:none}.closet-tools6 select{min-height:39px;height:39px;font-size:.75rem;padding:6px 8px;width:125px;border-radius:9px}.closet-categories6{display:flex;gap:5px;flex:none}.closet-categories6 button{padding:7px 11px;font-size:.75rem;color:var(--muted);border-radius:7px;white-space:nowrap}.closet-categories6 button.active{background:var(--blue);color:var(--on-accent);font-weight:650}.closet-categories6 button:hover:not(.active){background:var(--surface-soft)}#closetViewport{flex:1;min-height:0;min-width:0;overflow:hidden}#closetGrid6{display:grid;grid-template-columns:repeat(var(--closet-cols,4),minmax(0,1fr));grid-auto-rows:var(--closet-card-height,147px);gap:10px;align-content:start}.closet-item6{position:relative;min-width:0;min-height:0;border:1px solid var(--line);border-radius:13px;background:var(--surface);transition:border-color .2s,box-shadow .2s;overflow:hidden}.closet-item6.trying{border-color:var(--blue);box-shadow:inset 0 0 0 1px var(--blue)}.closet-item6:hover{border-color:var(--blue);box-shadow:0 5px 15px #152d6410}.closet-pick6{padding:7px;height:100%;width:100%;display:flex;flex-direction:column;gap:5px;text-align:left}.closet-art6{width:100%;flex:1;min-height:0;background:var(--surface-soft);border-radius:8px;position:relative;overflow:hidden;display:block}.closet-art6>img{position:absolute;max-width:none;object-fit:contain}.closet-pick6>b{font-size:.75rem;font-weight:650;line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;width:100%;padding:0 2px}.closet-pick6>small{font-size:.625rem;color:var(--muted);display:flex;align-items:center;justify-content:space-between;gap:3px;flex:none;padding:0 2px}.closet-pick6>small strong{font-size:.65rem;color:var(--blue);font-weight:600;white-space:nowrap}.item-state6{position:absolute;left:4px;bottom:4px;font-size:.5625rem;border-radius:4px;padding:2px 5px;background:var(--blue);color:var(--on-accent);z-index:3;line-height:1.4}.item-state6.owned{background:var(--surface);color:var(--muted);border:1px solid var(--line)}.item-heart6{position:absolute;right:6px;top:6px;width:27px;height:27px;border-radius:50%;background:var(--surface);color:var(--muted);display:grid;place-items:center;z-index:4;box-shadow:0 1px 7px #091e4210}.item-heart6 .icon{width:14px;height:14px}.item-heart6.saved{color:#b73d76}.item-heart6.saved .icon{fill:#f7bcd8}.closet-empty6{grid-column:1/-1;text-align:center;color:var(--muted);padding:35px 15px;font-size:.875rem}.closet-empty6 .btn{margin-top:18px;font-size:.8125rem}.closet-gallery6 .v6-pager{border-radius:10px}
/* Plans: the comparison itself is the whole main screen. */
.plus-desk6{max-width:1160px;width:100%;align-self:center}.plus-mascot6{position:relative;height:70px;width:90px;flex:none;padding:0}.plus-mascot6 img{height:100%;object-fit:contain;animation:token-float 5s ease-in-out infinite}.plus-mascot6 span{position:absolute;right:0;top:4px;padding:2px 7px;font-size:.7rem;border-radius:8px;background:var(--blue-soft);color:var(--blue)}.plus-comparison6{display:flex;flex-direction:column;flex:1;min-height:0;border-radius:20px;overflow:hidden}.plus-price-row6,.plus-cta-row6,.plus-feature-row6{display:grid;grid-template-columns:1.15fr 1fr 1.15fr}.plus-price-row6{flex:none;background:var(--surface);border-bottom:1px solid var(--line)}.plus-price-row6>div{padding:23px 25px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:8px}.plus-price-row6 .plan-label6{align-items:flex-start;background:var(--surface-soft)}.plan-label6>span{font-size:.75rem;color:var(--muted)}.plan-label6>h2{font-size:1.2rem}.plan-label6>small{font-size:.6875rem;color:var(--muted)}.plan-price6>span{font-size:.75rem;font-weight:750;letter-spacing:.04em;color:var(--muted)}.plan-price6>h2{font-size:2rem;display:flex;align-items:baseline;gap:4px;line-height:1.2}.plan-price6>h2 small{font-size:.75rem;font-weight:500}.plan-price6>small{font-size:.75rem;color:var(--muted)}.plan-price6.featured{background:var(--blue-soft)}.plan-price6.featured>span,.plan-price6.featured>h2{color:var(--blue)}.plus-feature-grid6{display:flex;flex-direction:column;min-height:0;flex:1}.plus-feature-row6{flex:1;min-height:33px;border-bottom:1px solid var(--line);font-size:.875rem}.plus-feature-row6>b,.plus-feature-row6>span,.plus-feature-row6>strong{display:flex;align-items:center;padding:8px 25px;gap:7px;font-size:.875rem;line-height:1.45;font-weight:550;min-width:0}.plus-feature-row6>span,.plus-feature-row6>strong{justify-content:center;text-align:center}.plus-feature-row6>span{color:var(--muted)}.plus-feature-row6>strong{background:color-mix(in srgb,var(--blue-soft) 45%,var(--surface));color:var(--blue);font-weight:650}.plus-feature-row6 .icon{width:17px;height:17px}.plus-cta-row6{padding:15px 0;flex:none;align-items:center;gap:20px;background:var(--surface)}.plus-cta-row6>span{font-size:.75rem;color:var(--muted);padding-left:25px}.plus-cta-row6>span b{font-size:.75rem;color:var(--ink);font-weight:600}.plus-cta-row6>.btn{font-size:.8125rem;min-height:42px;margin-right:20px;padding:9px 12px}.plus-bottom6{display:flex;align-items:center;gap:20px;padding:12px 0 3px;flex:none}.plus-bottom6>div{flex:1}.plus-bottom6 b{display:block;font-size:.8125rem}.plus-bottom6 span{display:block;font-size:.75rem;color:var(--muted);margin-top:4px}.plus-bottom6>.btn{font-size:.8125rem;min-height:42px}.plus-bottom6>.text-btn{font-size:.75rem}
/* Teacher: dense table, useful filters, persistent selection. */
.teacher-tabs6{display:flex;align-items:center;justify-content:space-between;gap:12px;flex:none}.teacher-tabs6 .segmented button{font-size:.8125rem;padding:7px 15px;min-height:35px}.teacher-tabs6 .segmented small{font-size:.65rem}.teacher-tabs6>.text-btn{font-size:.75rem}.teacher-tools6{display:flex;gap:9px;flex:none}.teacher-tools6 select{min-height:39px;font-size:.8125rem;padding:7px 10px;max-width:190px;height:39px}.teacher-board6{min-height:0;flex:1;display:flex;flex-direction:column;border-radius:14px;overflow:hidden}#studentViewport{min-height:0;flex:1;overflow:hidden;position:relative}.student-table6{width:100%;border-collapse:collapse;table-layout:fixed;margin:0}.student-table6 th{height:38px;font-size:.75rem;font-weight:600;padding:0 8px;background:var(--surface-soft);color:var(--muted);text-align:left;border-bottom:1px solid var(--line)}.student-table6 td{height:var(--student-row,46px);padding:0 8px;font-size:.8125rem;border-bottom:1px solid var(--line);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;background:var(--surface);line-height:1.4}.student-table6 tbody tr:hover td{background:var(--blue-soft)}.student-table6 input[type=checkbox]{width:16px;height:16px;min-height:16px;margin:0;accent-color:var(--blue);vertical-align:middle}.st-check{width:35px}.st-name{width:18%}.st-grade{width:7%}.st-solved{width:7%}.st-accuracy{width:9%}.st-wrong{width:7%}.st-unit{width:auto}.st-recent{width:12%}.st-feedback{width:80px}.student-name6 button{padding:6px 0;display:block;text-align:left;max-width:100%;min-height:38px}.student-name6 b{font-size:.8125rem;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.student-name6 small{display:none}.student-wrong6{font-size:.875rem;font-weight:650;color:var(--muted)}.student-wrong6 small{font-size:.65rem;margin-left:3px;font-weight:500}.student-wrong6.needs{color:#ad681d}.feedback-btn6{font-size:.75rem;color:var(--blue);background:var(--blue-soft);padding:5px 8px;border-radius:6px;min-height:31px;white-space:nowrap}.feedback-btn6.written{color:#1d7c56;background:#e4f5ec}#studentEmpty6{position:absolute;inset:45px 0 0;display:grid;place-items:center;color:var(--muted);font-size:.875rem}#studentEmpty6[hidden]{display:none}.teacher-action6{display:flex;justify-content:space-between;align-items:center;gap:12px;flex:none}.teacher-action6>div{display:flex;align-items:center;gap:12px}.teacher-action6 b,.teacher-action6 .text-btn{font-size:.8125rem}.teacher-action6 .btn{font-size:.8125rem;min-height:40px;padding:8px 13px}.teacher-action6 .btn .icon{width:17px;height:17px}.assignment-list6{flex:1;min-height:0;overflow:auto;border-radius:15px;padding:10px 18px}.assignment-list6 article{display:flex;align-items:center;gap:17px;padding:16px 0;border-bottom:1px solid var(--line)}.assignment-list6 article>div{flex:1;min-width:0}.assignment-list6 article b{font-size:.875rem}.assignment-list6 article p{font-size:.75rem;color:var(--muted);margin-top:4px}.assignment-number6{font-size:.875rem;color:var(--blue)}.assignment-list6 article .badge{font-size:.65rem}.assignment-empty6{height:100%;min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:14px}.assignment-empty6>.icon{height:35px;width:35px;color:var(--blue)}.assignment-empty6 h2{font-size:1.2rem}.assignment-empty6 p{font-size:.8125rem;color:var(--muted)}.teacher-draft-note6{font-size:.75rem;color:var(--muted)}.assignment-form6{display:grid;gap:15px}.assignment-form6>label{display:block;font-size:.8125rem;font-weight:600}.assignment-form6>label input{display:block;width:100%;margin-top:6px;font-size:.875rem}.assignment-form6 fieldset{border:1px solid var(--line);border-radius:10px;padding:12px;min-width:0}.assignment-form6 legend{font-size:.8125rem;padding:0 5px}.assignment-form6 fieldset>div{max-height:170px;overflow:auto}.assignment-form6 fieldset:first-of-type>div{display:grid;grid-template-columns:1fr 1fr;max-height:130px}.assignment-form6 fieldset label{display:flex;align-items:center;gap:8px;font-size:.8125rem;padding:5px 0}.assignment-form6 input[type=checkbox]{height:16px;width:16px;min-height:16px;accent-color:var(--blue);flex:none}.assignment-form6>p{font-size:.75rem;color:var(--muted)}
/* The companion only speaks when invited; the learning page stays quiet. */
.coach-button6{height:39px;width:40px;min-width:40px;position:relative;padding:0;flex:none;border-radius:11px;background:var(--blue-soft);border:1px solid var(--line);display:grid;place-items:center}.coach-button6>img{height:41px;width:41px;object-fit:contain;animation:coach-idle6 7s ease-in-out infinite}.coach-dot6{position:absolute;right:1px;top:1px;width:7px;height:7px;border-radius:50%;background:#e88ab5;box-shadow:0 0 0 2px var(--bg)}.coach-button6.has-clock{width:62px}.coach-button6.has-clock>img,.coach-button6.has-clock .coach-dot6{display:none}#coachClock6{font-size:.75rem;font-weight:750;color:var(--blue);font-variant-numeric:tabular-nums}.coach-bubble6{position:fixed;z-index:120;border:1px solid var(--line);border-radius:20px;background:var(--surface);color:var(--ink);padding:17px;box-shadow:0 16px 55px #111b4338}.coach-bubble6[hidden]{display:none}.coach-bubble6 header{display:flex;align-items:center;justify-content:space-between;gap:10px}.coach-bubble6 header>div{display:flex;gap:10px;align-items:center}.coach-bubble6 header img{width:45px;height:45px;object-fit:contain}.coach-bubble6 header b{font-size:.875rem}.coach-bubble6 header small{display:block;font-size:.6875rem;color:var(--muted)}.coach-bubble6 header .icon-btn{min-width:28px;min-height:28px;width:28px;height:28px}.coach-bubble6 header .icon{width:16px;height:16px}.coach-bubble6>p{font-size:.9375rem;font-weight:550;line-height:1.8;margin:13px 0 16px;word-break:keep-all}.coach-actions6{display:grid;grid-template-columns:repeat(3,1fr);gap:5px}.coach-actions6 button{padding:7px 4px;font-size:.6875rem;background:var(--blue-soft);color:var(--blue);border-radius:7px;min-height:35px}.hero-coach6{position:absolute;inset:0;pointer-events:auto;padding:0;width:100%;height:100%;z-index:2}.hero-coach6>.hero-cogo{pointer-events:none}.hero-coach6>span{position:absolute;top:10%;left:4%;z-index:5;font-size:.75rem;font-weight:650;color:#182d62;background:#edf2ff;padding:7px 13px;border-radius:12px 12px 3px 12px;box-shadow:0 5px 16px #051d5633;transform:rotate(-6deg);animation:token-float 5s ease-in-out infinite}.motivation-art{pointer-events:none}.home-missions6{width:100%;display:flex;align-items:center;justify-content:space-between;gap:13px;color:#e4ecff;padding:0}.home-missions6>span{display:flex;align-items:center;gap:8px;font-size:.8rem}.home-missions6 .icon{width:16px;height:16px}.home-missions6 b{font-size:.9375rem;margin-left:8px;color:white}.home-missions6 b small{font-size:.75rem;font-weight:450;color:#ccd8ff}.home-missions6>span:last-child{font-size:.75rem;margin-left:auto}.mission-dots6{display:flex;gap:5px}.mission-dots6 i{height:24px;width:24px;border:1px solid #b7cdff55;display:grid;place-items:center;border-radius:50%;font-style:normal;color:#dce6ff;font-size:.875rem}.mission-dots6 i.done{background:#d3e1ff;color:#213b82}.fun-tabs6{display:flex;gap:5px;border-bottom:1px solid var(--line);margin:0 0 18px;padding-bottom:10px}.fun-tabs6 button{flex:1;min-height:39px;font-size:.875rem;padding:7px 9px;color:var(--muted);border-radius:9px}.fun-tabs6 button.active{background:var(--blue-soft);color:var(--blue);font-weight:750}.fun-intro6{font-size:.875rem;color:var(--muted);margin-bottom:18px!important}.fun-intro-row6{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:18px}.fun-intro-row6 h3{font-size:1.15rem}.fun-intro-row6 p{font-size:.8125rem;margin-top:6px!important;color:var(--muted)}.fun-intro-row6 img{height:90px;width:90px;object-fit:contain;animation:token-float 5s ease-in-out infinite}.mission-list6{display:grid;gap:10px}.mission-list6 article{border:1px solid var(--line);border-radius:12px;padding:14px;display:flex;align-items:center;gap:12px}.mission-list6 article.done{border-color:#95c7ad;background:color-mix(in srgb,#86c6a2 12%,var(--surface))}.mission-index6{width:30px;height:30px;display:grid;place-items:center;background:var(--blue-soft);color:var(--blue);border-radius:9px;flex:none;font-size:.875rem;font-weight:750}.mission-index6 .icon{width:17px;height:17px}.mission-list6 article>div{flex:1}.mission-list6 b{display:block;font-size:.875rem}.mission-list6 small{display:block;font-size:.75rem;color:var(--muted);margin-top:4px;line-height:1.5}.mission-list6 .btn,.mission-list6 .text-btn{font-size:.75rem;min-height:36px;padding:7px 10px;white-space:nowrap}.week-trail6{margin-top:22px;border-top:1px solid var(--line);padding-top:18px}.week-trail6>b{font-size:.8125rem}.week-trail6>div{display:flex;justify-content:space-between;margin:13px 0}.week-trail6>div>span{font-size:.6875rem;color:var(--muted);display:flex;align-items:center;flex-direction:column;gap:5px}.week-trail6 i{width:28px;height:28px;font-size:.9375rem;font-style:normal;display:grid;place-items:center;border-radius:50%;border:1px solid var(--line)}.week-trail6 .done i{background:var(--blue);color:var(--on-accent)}.week-trail6>small{font-size:.6875rem;color:var(--muted)}.discovery-launch6{display:flex;align-items:center;justify-content:space-between;gap:9px;width:100%;margin-top:22px;border:1px solid var(--line);background:var(--surface-soft);padding:13px;border-radius:12px;font-size:.8125rem;font-weight:650;color:var(--blue)}.discovery-launch6 .icon{width:18px;height:18px}.badge-grid6{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:11px}.badge-grid6 article{text-align:center;border:1px dashed var(--line);border-radius:15px;padding:16px 11px;color:var(--muted);display:flex;flex-direction:column;align-items:center;gap:8px}.badge-grid6 article>span{width:49px;height:49px;display:grid;place-items:center;background:var(--surface-soft);border-radius:50%}.badge-grid6 article>span .icon{width:25px;height:25px}.badge-grid6 article b{font-size:.8125rem}.badge-grid6 article small{font-size:.6875rem;line-height:1.5}.badge-grid6 article em{font-style:normal;font-size:.625rem;margin-top:auto}.badge-grid6 article.unlocked{border:1px solid #dcb86e;background:color-mix(in srgb,#f9ce77 10%,var(--surface));color:var(--ink)}.badge-grid6 article.unlocked>span{color:#956919;background:#ffedbd}.badge-grid6 article.unlocked em{color:#976017;font-weight:650}.fun-frame6{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);display:flex;align-items:center;gap:14px;justify-content:space-between}.fun-frame6 b{font-size:.875rem}.fun-frame6 small{display:block;font-size:.75rem;color:var(--muted);margin-top:4px}.fun-frame6 .btn{font-size:.75rem;min-height:38px;white-space:nowrap}.focus-panel6{text-align:center;padding:15px 0}.timer-display6{font-size:4rem;font-weight:800;letter-spacing:-.05em;color:var(--blue);font-variant-numeric:tabular-nums;margin:20px 0}.timer-choices6{display:flex;justify-content:center;gap:8px}.timer-choices6 button{border:1px solid 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/* v7 usability pass: calmer chrome, visible focus, role-relevant header. */
body:not([data-role=student]) .topbar :is(.xp-header7,.coin,.coach-button6){display:none!important}
.account-menu7 [hidden]{display:none!important}.demo-menu-controls7 summary{cursor:pointer;padding:.7rem 0;font-size:.85rem;color:var(--muted)}.demo-menu-controls7 details[open] summary{padding-bottom:.4rem}.demo-menu-controls7 .demo-switch{padding:.5rem 0}.account-menu7>button{min-height:44px}.compact-footer>button{padding:.5rem 0 .5rem 1rem;color:var(--muted)}.resource-heading7 p .text-btn{font-size:inherit;text-decoration:underline;text-underline-offset:3px;margin-left:.3rem}
:where(button,a,input,textarea,select,summary):focus-visible{outline:3px solid #7994ff!important;outline-offset:3px}#main h1:focus:not(:focus-visible){outline:none}.account-button7:hover{border-color:#8094ce}.subject{transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.subject:hover{transform:translateY(-2px);box-shadow:0 5px 16px #24397e0d}.subject:active,.btn:active{transform:translateY(1px)}
@media(max-width:760px){body[data-signed-in=false] #accountLabel7{display:inline!important;font-size:.76rem}body[data-signed-in=false] .account-button7>.profile-avatar{display:none!important}.account-button7{min-height:36px}.account-button7>.icon{width:12px}.role-switch6 select{max-width:72px}.home-rank-strip{border-radius:17px}.resource-heading7 p .text-btn{display:inline}}
@media(prefers-reduced-motion:reduce){.subject:hover,.subject:active,.btn:active{transform:none}}

#main h1:focus{outline:none!important}

.page-range>span{color:#5c6d86}[data-theme=dark] .page-range>span{color:#b3c3df}

.page-range>span{opacity:1!important;color:#52647f!important}[data-theme=dark] .page-range>span{color:#c3cfe3!important}
@page cogoResource7{size:A4;margin:16mm}
@media print{body.printing-resource7 .resource-paper7{page:cogoResource7;min-height:250mm}}