:root{--ink:#10131d;--paper:#f5f6f8;--card:#fff;--sub:#697186;--line:#dde1ea;--violet:#6656e8;--violet-soft:#efedff;--blue:#416cf4;--mint:#198b70;--mint-soft:#eaf8f3;--red:#b6404e;--shadow:0 18px 55px rgba(21,25,43,.09);--ease:cubic-bezier(.2,.8,.2,1)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;overflow-x:hidden;color:var(--ink);background:radial-gradient(circle at 85% 4%,rgba(102,86,232,.09),transparent 30%),var(--paper);font-family:Inter,"Segoe UI",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit}
button,a{touch-action:manipulation}
[hidden]{display:none!important}
.shell{width:min(1220px,calc(100% - 40px));margin:auto}
.topbar{border-bottom:1px solid rgba(16,19,29,.08);background:rgba(255,255,255,.86);backdrop-filter:blur(18px)}
.nav{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:700;letter-spacing:-.02em}
.brand-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:11px;color:#fff;background:linear-gradient(135deg,var(--blue),var(--violet));box-shadow:0 8px 20px rgba(82,86,230,.25)}
.nav nav{display:flex;gap:24px}
.nav nav a{color:#555d70;text-decoration:none;font-size:13px;font-weight:700}
.nav nav a:hover{color:var(--violet)}
.page{padding:68px 0 100px}
.intro{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(300px,.55fr);gap:72px;align-items:end;margin-bottom:42px}
.intro>*,.status-card>div,.workspace-grid>*,.section-head>div,.stack-item>div{min-width:0}
.eyebrow,.kicker{margin:0 0 12px;color:var(--violet);font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.intro h1{margin:0;font-size:clamp(48px,6vw,78px);line-height:1.01;letter-spacing:-.065em}
.intro h1 em{color:var(--violet);font-family:Georgia,serif;font-weight:400}
.lead{max-width:740px;margin:24px 0 0;color:var(--sub);font-size:17px;line-height:1.65}
.principle{padding:24px;border:1px solid #dedaf8;border-radius:22px;background:rgba(255,255,255,.72);box-shadow:0 14px 40px rgba(52,44,120,.07)}
.principle span{color:var(--violet);font-size:10px;font-weight:700;letter-spacing:.1em;text-transform:uppercase}
.principle strong{display:block;margin:10px 0;font-size:20px;line-height:1.2;letter-spacing:-.03em}
.principle strong,.principle p,.status-card strong,.status-card p,.lead{overflow-wrap:anywhere}
.principle p{margin:0;color:var(--sub);font-size:13px;line-height:1.6}
.status-card{display:flex;align-items:center;justify-content:space-between;gap:22px;margin-bottom:22px;padding:18px 20px;border:1px solid #d8dcea;border-radius:18px;background:#fff;box-shadow:0 10px 32px rgba(23,27,46,.05)}
.status-card>div{display:grid;grid-template-columns:auto 1fr;column-gap:11px;align-items:center}
.status-card p{grid-column:2;margin:4px 0 0;color:var(--sub);font-size:13px}
.status-dot{width:9px;height:9px;border-radius:50%;background:#d5a52b;box-shadow:0 0 0 5px rgba(213,165,43,.13)}
.status-card.ready .status-dot{background:var(--mint);box-shadow:0 0 0 5px rgba(25,139,112,.12)}
.status-card.error .status-dot{background:var(--red);box-shadow:0 0 0 5px rgba(182,64,78,.12)}
.button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 17px;border:0;border-radius:12px;color:#fff;background:linear-gradient(110deg,var(--blue),var(--violet));box-shadow:0 10px 25px rgba(76,84,224,.2);font-size:13px;font-weight:700;text-decoration:none;cursor:pointer;transition:transform .2s var(--ease),box-shadow .2s var(--ease),opacity .2s}
.button:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(76,84,224,.28)}
.button:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.button.secondary{color:#34394a;border:1px solid var(--line);background:#fff;box-shadow:none}
.button.dark{background:var(--ink);box-shadow:none}
.closed-view{display:grid;grid-template-columns:1fr 1.15fr;gap:42px;padding:42px;border:1px solid var(--line);border-radius:28px;background:#fff;box-shadow:var(--shadow)}
.closed-copy h2{max-width:460px;margin:0;font-size:40px;line-height:1.05;letter-spacing:-.05em}
.closed-copy>p:last-child{max-width:480px;margin:20px 0 0;color:var(--sub);line-height:1.65}
.closed-view ol{display:grid;gap:10px;margin:0;padding:0;list-style:none}
.closed-view li{display:grid;grid-template-columns:42px 1fr;gap:14px;padding:18px;border:1px solid var(--line);border-radius:16px}
.closed-view li>span{color:var(--violet);font-size:12px;font-weight:700}
.closed-view li strong{font-size:15px}
.closed-view li p{margin:5px 0 0;color:var(--sub);font-size:13px;line-height:1.5}
.workspace{overflow:hidden;border:1px solid var(--line);border-radius:28px;background:#fff;box-shadow:var(--shadow)}
.org-head{display:flex;align-items:center;gap:14px;padding:24px 28px;border-bottom:1px solid var(--line);background:linear-gradient(110deg,#fff,#f6f4ff)}
.org-logo{width:48px;height:48px;display:grid;place-items:center;border-radius:15px;color:#fff;background:linear-gradient(135deg,#343b55,var(--violet));font-size:18px;font-weight:700}
.org-head p{margin:0 0 3px;color:var(--sub);font-size:12px}
.org-head h2{margin:0;font-size:21px;letter-spacing:-.03em}
.privacy-pill{margin-left:auto;padding:8px 11px;border-radius:99px;color:#426359;background:var(--mint-soft);font-size:10px;font-weight:700;letter-spacing:.05em;text-transform:uppercase}
.workspace-grid{display:grid;grid-template-columns:220px minmax(0,1fr);min-height:680px}
.sidebar{min-width:0;padding:22px 14px;border-right:1px solid var(--line);background:#fafafd}
.nav-button{width:100%;min-height:46px;display:flex;align-items:center;gap:11px;padding:0 13px;border:0;border-radius:12px;color:#555d70;background:transparent;font-size:13px;font-weight:700;text-align:left;cursor:pointer;transition:background .18s,color .18s}
.nav-button span{width:20px;color:#8b91a1;text-align:center}
.nav-button:hover{color:var(--ink);background:#f0f1f6}
.nav-button.active{color:#4f43ca;background:var(--violet-soft)}
.nav-button.active span{color:var(--violet)}
.sidebar-note{margin:26px 4px 0;padding:16px;border:1px solid #dfe4ef;border-radius:14px;background:#fff}
.sidebar-note strong{font-size:12px}
.sidebar-note p{margin:7px 0 0;color:var(--sub);font-size:11px;line-height:1.5}
.content{min-width:0;padding:32px}
.view{display:none}
.view.active{display:block;animation:fade-in .28s var(--ease)}
@keyframes fade-in{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}
.section-head{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:24px}
.section-head h2{margin:0;font-size:32px;letter-spacing:-.05em}
.section-head>div>p:last-child:not(.kicker){margin:8px 0 0;color:var(--sub);font-size:13px}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}
.metric{min-height:125px;padding:19px;border:1px solid var(--line);border-radius:17px;background:#fff}
.metric span{color:var(--sub);font-size:11px;font-weight:700}
.metric strong{display:block;margin:20px 0 4px;font-size:30px;letter-spacing:-.05em}
.metric small{color:#8b92a2}
.split{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);gap:16px}
.panel{padding:22px;border:1px solid var(--line);border-radius:19px;background:#fff}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.panel h3{margin:0;font-size:20px;letter-spacing:-.03em}
.accent-panel{color:#fff;border-color:transparent;background:linear-gradient(140deg,#171a25 15%,#272342 58%,#4c419f)}
.accent-panel .kicker{color:#a9a1ff}
.route{display:grid;grid-template-columns:26px 1fr;gap:13px 10px;margin-top:22px}
.route span{width:26px;height:26px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.23);border-radius:50%;color:#c9c4ff;font-size:10px;font-weight:700}
.route p{margin:0;color:#b9becc;font-size:11px;line-height:1.45}
.route strong{display:block;margin-bottom:2px;color:#fff;font-size:13px}
.stack-list{display:grid;gap:8px}
.stack-item{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:14px;border-radius:13px;background:#f6f7f9}
.stack-item strong{display:block;font-size:13px}
.stack-item p{margin:4px 0 0;color:var(--sub);font-size:11px}
.stack-item time{color:#5549cf;font-size:11px;font-weight:700}
.empty{padding:28px;border:1px dashed #d8dce5;border-radius:15px;color:var(--sub);font-size:13px;line-height:1.55;text-align:center}
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}
.entity-card{position:relative;min-height:170px;padding:20px;border:1px solid var(--line);border-radius:18px;background:#fff;transition:transform .22s var(--ease),border-color .22s,box-shadow .22s}
.entity-card:hover{transform:translateY(-3px);border-color:#cbc6ef;box-shadow:0 14px 32px rgba(41,35,90,.08)}
.entity-card .tag{display:inline-flex;padding:6px 8px;border-radius:8px;color:#5549cf;background:var(--violet-soft);font-size:9px;font-weight:700;letter-spacing:.07em;text-transform:uppercase}
.entity-card h3{margin:17px 0 7px;font-size:18px;letter-spacing:-.035em}
.entity-card p{margin:0;color:var(--sub);font-size:12px;line-height:1.5}
.entity-meta{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px}
.entity-meta span{padding:6px 8px;border-radius:8px;color:#596173;background:#f2f3f6;font-size:10px;font-weight:700}
.entity-action{position:absolute;right:17px;top:17px;min-width:36px;height:36px;border:1px solid var(--line);border-radius:50%;color:var(--ink);background:#fff;cursor:pointer;transition:background .18s,color .18s}
.entity-action:hover{color:#fff;background:var(--violet)}
.inline-form{display:grid;grid-template-columns:1fr 1fr auto;gap:12px;align-items:end;margin-bottom:16px}
label{display:grid;gap:7px;color:#4b5263;font-size:11px;font-weight:700}
input,select,textarea{width:100%;border:1px solid #d6dae4;border-radius:11px;color:var(--ink);background:#fff;outline:none;transition:border-color .18s,box-shadow .18s}
input,select{min-height:44px;padding:0 12px}
textarea{min-height:88px;padding:11px 12px;resize:vertical;line-height:1.5}
input:focus,select:focus,textarea:focus{border-color:#8c83eb;box-shadow:0 0 0 3px rgba(102,86,232,.12)}
.feedback{grid-column:1/-1;margin:0;color:var(--sub);font-size:12px}
.builder{margin-top:16px;padding:24px}
.assignment-form{margin:16px 0;padding:24px}
.builder-head{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:22px}
.builder-head h3{margin:0;font-size:25px}
.icon-button{width:40px;height:40px;border:1px solid var(--line);border-radius:50%;color:#626a7c;background:#fff;font-size:22px;cursor:pointer}
.form-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}
.wide{grid-column:1/-1}
.builder-divider{display:flex;align-items:center;justify-content:space-between;margin:28px 0 13px;padding-top:22px;border-top:1px solid var(--line)}
.panel-subtitle{margin:7px 0 0;color:var(--sub);font-size:12px;line-height:1.5}
.template-library{margin-top:16px;background:linear-gradient(135deg,#fff,#fbfbff)}
.template-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.template-card{position:relative;display:grid;gap:10px;min-height:142px;padding:17px;border:1px solid #e0e2eb;border-radius:15px;background:#fff;transition:transform .22s var(--ease),border-color .22s,box-shadow .22s}
.template-card:hover{transform:translateY(-2px);border-color:#cbc6ef;box-shadow:0 12px 26px rgba(41,35,90,.07)}
.template-card h4{margin:0;padding-right:30px;font-size:15px;letter-spacing:-.025em}
.template-card p{margin:0;color:var(--sub);font-size:11px;line-height:1.5}
.template-meta{display:flex;flex-wrap:wrap;gap:6px;color:#596173;font-size:10px;font-weight:700}
.template-meta span{padding:5px 7px;border-radius:7px;background:#f2f3f6}
.template-actions{display:flex;gap:8px;margin-top:auto}
.template-actions .button{min-height:36px;padding:0 11px;font-size:11px}
.settings-checks{display:flex;flex-wrap:wrap;gap:9px 18px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fafafd}
.settings-checks .check{display:flex;grid-template-columns:none;align-items:center;gap:8px;font-size:11px;font-weight:700}
.settings-checks .check input{flex:0 0 auto}
.grade-scale{margin-top:18px;padding:18px;border:1px solid var(--line);border-radius:15px;background:linear-gradient(135deg,#fafafd,#fff)}
.grade-scale-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}
.grade-scale-head h4{margin:0;font-size:17px;letter-spacing:-.025em}
.grade-scale-head p:last-child{max-width:650px;margin:6px 0 0;color:var(--sub);font-size:11px;line-height:1.5}
.grade-scale-head .button{flex:0 0 auto}
.grade-scale-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:15px}
.grade-level{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:8px;padding:12px;border:1px solid #e0e2eb;border-radius:12px;background:#fff}
.grade-level label{min-width:0}
.grade-level input{min-height:40px}
.remove-grade-level{grid-column:1/-1;min-height:32px;border:0;border-radius:8px;color:var(--red);background:#fff1f2;font-size:10px;font-weight:700;cursor:pointer}
.remove-grade-level:disabled{color:#a9adb7;background:#f0f1f4;cursor:not-allowed}
.grade-scale-preview{margin:12px 0 0;color:#5549cf;font-size:11px;font-weight:700;line-height:1.5}
.grade-scale-preview.error{color:var(--red)}
.numeric-tolerance-field{display:none}
.numeric-tolerance-field:not([hidden]){display:grid}
.builder-divider strong{font-size:14px}
.question-list{display:grid;gap:12px}
.question-card{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;padding:19px;border:1px solid #dfe2ea;border-radius:16px;background:#fafafd}
.question-top{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between}
.question-number{width:28px;height:28px;display:grid;place-items:center;border-radius:9px;color:#5549cf;background:var(--violet-soft);font-size:11px;font-weight:700}
.remove-question{border:0;color:var(--red);background:transparent;font-size:11px;font-weight:700;cursor:pointer}
.answer-help{color:#9096a4;font-weight:500}
.choice-field{display:grid;gap:10px}.option-field-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.option-field-head strong,.option-field-head small{display:block}.option-field-head strong{font-size:12px}.option-field-head small{margin-top:5px;color:#8d93a1;font-size:10px;line-height:1.45}.option-field-head .button{flex:0 0 auto;min-height:38px;padding:8px 12px}.question-option-list{display:grid;gap:8px}.question-option-row{display:grid;grid-template-columns:24px minmax(0,1fr) auto;align-items:center;gap:9px;padding:9px;border:1px solid #dfe2ea;border-radius:11px;background:#fff}.question-option-row .correct-option{width:17px;min-height:17px;margin:0}.question-option-row .question-option-text{min-height:40px}.remove-question-option{min-height:36px;padding:7px 9px;border:0;border-radius:8px;color:var(--red);background:#fff1f2;font-size:11px;font-weight:700;cursor:pointer}.remove-question-option:disabled{color:#a9adb7;background:#f0f1f4;cursor:not-allowed}
.builder-actions{display:flex;align-items:center;gap:10px;margin-top:18px}
.builder-actions .feedback{margin-left:6px}
.materials-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.material-box{display:grid;grid-template-columns:1fr auto;gap:10px;padding:17px;border:1px solid var(--line);border-radius:15px;background:#fafafd}
.material-box>strong,.material-box>p,.material-box>input{grid-column:1/-1}
.material-box>strong{font-size:14px}
.material-box>p{margin:0;color:var(--sub);font-size:11px;line-height:1.5}
.material-box input,.material-box select{font-size:12px}
.material-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:11px}
.material-item{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:10px;color:#4a5262;background:#f0f2f6;font-size:11px;font-weight:700}
.material-item span{color:var(--violet)}
.result-grid{display:grid;gap:12px}
.result-row{display:grid;grid-template-columns:minmax(220px,1fr) 110px 110px minmax(170px,.7fr);gap:14px;align-items:center;padding:18px 20px;border:1px solid var(--line);border-radius:16px;background:#fff}
.result-row strong{font-size:14px}
.result-row small{display:block;margin-top:5px;color:var(--sub)}
.result-value{font-size:18px;font-weight:700}
.review-open{min-height:38px;padding:0 14px;font-size:12px}
.material-row{display:flex;align-items:center;gap:10px}
.material-remove{padding:4px 9px;border:1px solid #e2d3d8;border-radius:9px;color:#8a3f50;background:#fff;font:inherit;font-size:11px;font-weight:700;cursor:pointer}
.material-remove:hover{background:#fdf2f4}
.material-remove:disabled{opacity:.55;cursor:default}
.attempt-review{display:grid;gap:10px;margin-top:22px}
.attempt-review[hidden]{display:none}
.review-head{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;padding:16px 20px;border:1px solid var(--line);border-radius:16px;background:#fff}
.review-head strong{display:block;font-size:17px}
.review-head small{display:block;margin-top:3px;color:var(--muted);font-size:12px}
.review-score{font-size:16px;font-weight:700}
.review-item{display:grid;grid-template-columns:34px minmax(0,1fr) 68px;gap:14px;align-items:start;padding:16px 18px;border:1px solid var(--line);border-radius:16px;background:#fff}
.review-correct{border-left:4px solid #12a06d}
.review-wrong{border-left:4px solid #d4536a}
.review-number{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:#f1f3f8;font-size:12px;font-weight:700}
.review-prompt{margin:0 0 8px;font-size:14px;line-height:1.5}
.review-answer{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 4px;font-size:13px;line-height:1.5}
.review-label{color:var(--muted);font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;padding-top:2px}
.review-explanation{margin:8px 0 0;color:var(--muted);font-size:12px;line-height:1.55}
.review-points{font-size:14px;font-weight:700;text-align:right}
@media(max-width:720px){.review-item{grid-template-columns:28px minmax(0,1fr);}.review-points{grid-column:2;text-align:left}}
.progress{height:7px;overflow:hidden;border-radius:99px;background:#eceef3}
.progress span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--blue),var(--violet))}
.join-form{max-width:650px;display:grid;gap:15px}
.check{grid-template-columns:18px 1fr;align-items:start;line-height:1.5}
.check input{width:16px;min-height:16px;margin-top:2px}
.mode-teacher .student-only,.mode-student .teacher-only,.mode-viewer .editor-only{display:none!important}
.attempt-overlay{position:fixed;z-index:50;inset:0;display:grid;place-items:center;padding:24px;background:rgba(12,14,23,.72);backdrop-filter:blur(8px)}
.attempt-panel{width:min(820px,100%);max-height:calc(100vh - 48px);overflow:auto;border-radius:24px;background:#fff;box-shadow:0 35px 100px rgba(0,0,0,.3)}
.attempt-head{position:sticky;z-index:2;top:0;display:flex;align-items:flex-start;justify-content:space-between;gap:24px;padding:24px 28px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.96);backdrop-filter:blur(14px)}
.attempt-head h2{margin:0;font-size:28px;letter-spacing:-.04em}
.attempt-head p:last-child{margin:8px 0 0;color:var(--sub);font-size:13px}
.attempt-form{display:grid;gap:13px;padding:24px 28px 30px}
.attempt-form fieldset{display:grid;gap:9px;margin:0;padding:18px;border:1px solid var(--line);border-radius:15px}
.attempt-form legend{padding:0 7px;font-size:14px;font-weight:700;line-height:1.45}
.answer-option{display:grid;grid-template-columns:18px 1fr;gap:9px;align-items:start;padding:10px 11px;border-radius:10px;background:#f6f7f9;font-size:13px;font-weight:600;cursor:pointer}
.answer-option input{width:16px;min-height:16px;margin:1px 0 0}
.attempt-deadline{margin:0;padding:14px 28px;color:#4f43ca;background:var(--violet-soft);font-size:12px;font-weight:700}
.attempt-materials{display:grid;gap:10px;padding:18px 28px 0}
.attempt-materials>strong{font-size:13px}
.attempt-material-list{display:flex;flex-wrap:wrap;gap:8px}
.attempt-material-list .material-item{border:0;text-decoration:none;cursor:pointer}
.result-panel{padding-bottom:28px}
.result-summary{margin:24px 28px 14px;padding:22px;border-radius:17px;color:#fff;background:linear-gradient(135deg,#171a25,#443b91)}
.result-summary strong{display:block;font-size:34px;letter-spacing:-.04em}
.result-summary p{margin:8px 0 0;color:#d7d8e4;font-size:12px;line-height:1.55}
.review-note{margin:14px 28px;padding:13px 15px;border-radius:12px;color:#594fa7;background:var(--violet-soft);font-size:12px}
.answer-review{display:grid;gap:10px;margin:18px 28px}
.review-item{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:7px 14px;padding:16px;border:1px solid var(--line);border-radius:14px}
.review-item>strong{font-size:13px;line-height:1.45}
.review-item>span{align-self:start;padding:5px 7px;border-radius:7px;font-size:9px;font-weight:700;text-transform:uppercase}
.review-item.correct>span{color:#146b57;background:var(--mint-soft)}
.review-item.incorrect>span{color:var(--red);background:#fff0f2}
.review-item p{grid-column:1/-1;margin:0;color:var(--sub);font-size:12px;line-height:1.55}
.result-panel>.button{margin:0 28px}

@media(max-width:980px){
  .intro{grid-template-columns:minmax(0,1fr);gap:26px}.principle{width:100%;max-width:620px}.workspace-grid{grid-template-columns:minmax(0,1fr)}.sidebar{position:sticky;top:0;z-index:3;max-width:100%;display:flex;gap:6px;overflow:auto;border-right:0;border-bottom:1px solid var(--line)}.nav-button{width:auto;flex:0 0 auto;white-space:nowrap}.sidebar-note{display:none}.metric-grid{grid-template-columns:repeat(2,1fr)}.split{grid-template-columns:minmax(0,1fr)}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.grade-scale-list{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:680px){
  .shell{width:calc(100% - 24px);max-width:1220px}.nav nav{display:none}.page{padding:38px 0 60px}.intro h1{font-size:43px}.lead{font-size:15px}.status-card{align-items:flex-start;flex-direction:column}.status-card>div{width:100%}.closed-view{grid-template-columns:minmax(0,1fr);padding:24px}.closed-copy h2{font-size:31px}.org-head{padding:18px}.privacy-pill{display:none}.content{padding:22px 16px}.section-head{align-items:flex-start;flex-direction:column}.section-head h2{font-size:28px}.metric-grid,.card-grid,.template-grid{grid-template-columns:minmax(0,1fr)}.inline-form{grid-template-columns:minmax(0,1fr)}.form-grid,.question-card,.materials-grid,.grade-scale-list{grid-template-columns:minmax(0,1fr)}.grade-scale-head{flex-direction:column}.grade-scale-head .button{width:100%}.wide,.question-top{grid-column:1}.builder,.assignment-form{padding:17px}.builder-actions{align-items:stretch;flex-direction:column}.option-field-head{align-items:stretch;flex-direction:column}.option-field-head .button{width:100%}.question-option-row{grid-template-columns:22px minmax(0,1fr) auto}.material-box{grid-template-columns:minmax(0,1fr)}.material-box>*{grid-column:1!important}.result-row{grid-template-columns:1fr 1fr}.result-row>*:last-child{grid-column:1/-1}.attempt-overlay{padding:0}.attempt-panel{height:100vh;max-height:none;border-radius:0}.attempt-head,.attempt-form{padding:20px 16px}.attempt-deadline{padding:14px 16px}.attempt-materials{padding:16px 16px 0}.result-summary,.review-note,.answer-review{margin-left:16px;margin-right:16px}.result-panel>.button{margin:0 16px}.review-item{grid-template-columns:minmax(0,1fr)}.review-item>span{justify-self:start}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

/* Workspace v2: progressive disclosure and a focused editor. */
body{--sub:#535d70}.page{padding-top:36px}.mode-teacher .intro,.mode-student .intro,.status-card.ready{display:none}.sidebar-note{display:none}.kicker,.eyebrow{font-size:12px;letter-spacing:.05em;font-weight:600}.nav nav a,.nav-button{font-size:15px;font-weight:600}.org-head{padding:24px}.content{min-width:0}.section-head p,.entity-card p,.panel-subtitle{font-size:15px;line-height:1.6}.section-head h2{font-size:28px}.button{font-size:15px;font-weight:600;padding:12px 18px}.builder-head p{font-size:15px;color:var(--sub)}.builder-settings{margin:20px 0;border:1px solid var(--line);border-radius:14px;padding:0 18px}.builder-settings>summary{padding:16px 0;font-weight:600;font-size:16px}.builder-settings>summary span{display:block;margin-left:18px;font-size:14px;font-weight:400;color:var(--sub)}.builder-settings[open]{padding-bottom:20px}.builder-settings .form-grid{margin-top:16px}.builder label,.question-card label{font-size:15px;font-weight:600;line-height:1.55}.builder small{font-size:13px;font-weight:400;color:var(--sub)}.question-card{padding:24px;gap:18px}.question-prompt{min-height:100px;font-size:17px}.question-option-text{font-size:16px}.question-number{font-size:16px;font-weight:600}.question-extra{padding-top:8px}.question-extra label{margin-top:12px}.publish-help{font-size:14px;color:var(--sub);max-width:740px;line-height:1.6}.builder-actions{position:sticky;bottom:0;z-index:4;gap:10px;background:#fff;padding:16px 0;border-top:1px solid var(--line);flex-wrap:wrap}.builder-actions .feedback{flex-basis:100%;margin:0;font-size:15px}.editing-test #testGrid,.editing-test .template-library,.editing-test [data-view-panel=tests]>.section-head{display:none}.editing-test .builder{margin-top:0}.entity-card .card-action{font-size:15px}.share-box{padding:20px;margin:18px 0;border:1px solid var(--line);border-radius:14px;background:#f7f6ff;display:grid;gap:12px}.share-box input{width:100%;min-width:0;font-size:14px}.share-actions{display:flex;gap:10px;flex-wrap:wrap}.attempt-panel{border:0;padding:0;color:var(--ink)}dialog.attempt-panel::backdrop{background:rgba(20,22,35,.6)}.attempt-panel:modal{max-width:min(820px,calc(100% - 24px));max-height:calc(100dvh - 32px)}.attempt-form legend{font-size:19px;font-weight:600}.answer-option{font-size:16px;padding:16px;line-height:1.5}.attempt-head p:last-child,.attempt-deadline,.review-note,.review-item p{font-size:15px}.attempt-head h2{font-size:25px;letter-spacing:-.02em}.attempt-head{position:static}.attempt-controls{display:flex;gap:12px;justify-content:space-between;flex-wrap:wrap}.preview-note{padding:16px 28px;margin:0;background:#f0edff;color:#443697;font-size:15px}.attempt-counter{padding:12px 28px;font-weight:600}.preview-review{padding:20px;line-height:1.6}.preview-review p{margin:12px 0}.result-summary strong{font-size:28px}.result-summary p{font-size:15px}.question-card .remove-question{font-size:14px}.grade-scale-head p{font-size:14px}.material-item{font-size:14px}.metric strong{font-weight:700}.metric small{font-size:13px}
@media(max-width:680px){.page{padding-top:20px}.builder-actions{position:static}.builder-settings{padding:0 12px}.question-card{padding:16px}.nav nav{gap:12px;flex-wrap:wrap}.nav nav a{font-size:14px}.attempt-panel:modal{height:auto;max-height:calc(100dvh - 16px);border-radius:16px}.attempt-form{padding:18px}.attempt-form fieldset{padding:14px}.attempt-head h2{font-size:22px}.preview-note{padding:16px}.shell{width:calc(100% - 24px)}}