:root{color:#392238;font-synthesis:none;--burgundy:#7d294b;--ink:#392238;--muted:#77586e;--line:#e3d4df;--paper:#fffafb;--light:#f2e6ee;background:#fffafb;font-family:Computer Modern Serif}*{box-sizing:border-box}body{margin:0;font-size:14px;line-height:1.6}button,input,select,textarea{font:inherit}button{cursor:pointer;color:inherit;background:0 0;border:0}button:disabled{cursor:not-allowed;opacity:.5}a{color:inherit;text-decoration:none}svg{flex-shrink:0}h1,h2,h3,h4,p{margin:0}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline-offset:3px;outline:3px solid #a3658f}input,select,textarea{color:var(--ink);background:#fff;border:1px solid #e3d4df;border-radius:7px;min-width:0;max-width:100%;padding:10px 12px}input::placeholder,textarea::placeholder{color:#77586e}textarea{resize:vertical}pre{white-space:pre-wrap;word-break:break-word;font:12px/1.8 Computer Modern Typewriter;overflow:auto}code{font-family:Computer Modern Typewriter}.side{border-right:1px solid var(--line);z-index:30;background:#f4eaf1;flex-direction:column;width:232px;padding:30px 18px 22px;display:flex;position:fixed;inset:0 auto 0 0}.brand{text-align:left;align-items:center;gap:11px;margin:0 10px;padding:0;display:flex}.brand>span{color:#f9edf5;background:#301b35;border-radius:10px;place-items:center;width:40px;height:43px;display:grid}.brand>div{letter-spacing:-.6px;font-size:21px;font-weight:700;line-height:1.1}.brand small{letter-spacing:2px;color:#68415f;margin-top:6px;font-size:9px;font-weight:500;display:block}.side-label{letter-spacing:1.6px;color:#77586e;margin:42px 14px 14px;font-size:9px;display:block}.side nav button{text-align:left;color:#68415f;border-radius:7px;align-items:center;gap:12px;width:100%;margin:3px 0;padding:13px 14px;font-size:12px;display:flex}.side nav button.selected{color:#392238;background:#e8d7e4;font-weight:600}.side nav button:hover{background:#f4eaf1}.nav-point{background:#7d294b;border-radius:50%;width:5px;height:5px;margin-left:auto}.side-info{background:#f4eaf1;border:1px solid #e3d4df;border-radius:9px;margin:32px 4px;padding:18px 15px}.side-info>span{color:#68415f;font-size:9px}.side-info strong{margin:9px 0;font-size:14px;display:block}.side-info p{font-size:11px;line-height:1.8}.side-info button{color:#68415f;border-top:1px solid #e3d4df;justify-content:space-between;align-items:center;width:100%;margin-top:17px;padding:13px 0 0;font-size:10px;display:flex}.side-footer{color:#68415f;align-items:center;gap:10px;margin-top:auto;padding:0 13px;font-size:10px;display:flex}.side-footer small{color:#77586e;font-size:9px;display:block}.top{border-bottom:1px solid var(--line);background:#fffafb;justify-content:space-between;align-items:center;gap:15px;height:80px;padding:0 40px;display:flex}.top-actions{align-items:center;gap:24px;display:flex}.language{background:#f4eaf1;border:1px solid #e3d4df;border-radius:6px;gap:3px;padding:3px;display:flex}.language button{color:#68415f;border-radius:4px;padding:5px 9px;font-size:10px}.language button.active{color:#392238;background:#fff;box-shadow:0 1px 3px #381a3612}.account{text-align:left;align-items:center;gap:10px;display:flex}.account>span,.avatar{color:#68415f;background:#e8d7e4;border-radius:50%;place-items:center;width:32px;height:32px;font-size:12px;display:grid}.account>div{white-space:nowrap;text-overflow:ellipsis;max-width:210px;font-size:11px;overflow:hidden}.account small{color:#77586e;font-size:9px;display:block}.signin{color:#68415f;border:1px solid #e3d4df;border-radius:6px;align-items:center;gap:7px;padding:8px 12px;font-size:11px;display:flex}.heading{margin-bottom:27px}.heading>span,.heading>div>span,.eyebrow{letter-spacing:1.5px;color:#68415f;font-size:9px;font-weight:650}.heading h1 small{letter-spacing:0;color:#68415f;margin-left:16px;font-size:17px;font-weight:450;display:inline-block}.heading p{font-size:12px;line-height:1.85}.heading.split{justify-content:space-between;align-items:center;gap:20px;display:flex}.btn{color:#f9edf5;white-space:nowrap;background:#512645;border-radius:6px;justify-content:center;align-items:center;gap:10px;padding:11px 17px;font-size:11px;font-weight:550;line-height:1.5;display:inline-flex}.btn.secondary{color:#68415f;background:#f4eaf1;border:1px solid #e3d4df}.btn.full{width:100%}.text-link{color:#68415f;align-items:center;gap:7px;padding:0;font-size:11px;display:inline-flex}.danger-text{color:#68415f}.portal-choices{grid-template-columns:1fr 1fr;gap:23px;display:grid}.portal-card{border:1px solid var(--line);background:var(--paper);border-radius:12px;padding:32px;position:relative;overflow:hidden}.portal-symbol{color:#68415f;background:#f4eaf1;border-radius:12px;place-items:center;width:54px;height:54px;margin-bottom:24px;display:grid}.portal-card h2{margin-bottom:14px;font-size:25px;font-weight:550}.portal-card p{max-width:410px;min-height:75px;margin-bottom:22px;font-size:13px;line-height:1.9}.teacher-card p{color:#77586e}.portal-card small{color:#77586e;margin-top:17px;font-size:10px;display:block}.course-entry{border:1px solid var(--line);background:#fffafb;border-radius:9px;justify-content:space-between;align-items:center;gap:20px;margin-top:22px;padding:24px 28px;display:flex}.course-entry h2{margin-bottom:6px;font-size:19px;font-weight:550}.course-entry p{font-size:12px}.scope-grid{grid-template-columns:repeat(4,1fr);gap:16px;margin:22px 0 26px;display:grid}.metric{border:1px solid var(--line);background:#fffafb;border-radius:8px;flex-direction:column;padding:20px 22px;display:flex}.metric>span{color:#68415f;font-size:10px}.metric strong{letter-spacing:-.8px;margin:10px 0 3px;font-size:28px;font-weight:550;line-height:1.35}.metric small{color:#77586e;font-size:10px}.footer{border-top:1px solid var(--line);color:#77586e;align-items:center;gap:24px;margin-top:36px;padding:25px 0;font-size:9px;display:flex}.footer>span{margin-right:auto}.footer a,.footer button{color:#68415f;align-items:center;gap:6px;padding:0;font-size:9px;display:flex}.panel{border:1px solid var(--line);background:#fffafb;border-radius:10px;padding:27px}.panel h2{font-size:20px;font-weight:550}.panel-intro{margin:10px 0 20px;font-size:12px;line-height:1.85}.field{flex-direction:column;gap:7px;margin-bottom:18px;display:flex}.field>span{color:#68415f;font-size:11px}.field input,.field select,.field textarea{width:100%;font-size:12px}.field textarea{line-height:1.8}.login-panel{border:1px solid var(--line);background:#fffafb;border-radius:12px;max-width:470px;margin:35px auto 80px;padding:38px}.login-icon{color:#68415f;background:#f4eaf1;border-radius:50%;place-items:center;width:75px;height:75px;margin:0 auto 24px;display:grid}.segmented{background:#f4eaf1;border:1px solid #e3d4df;border-radius:7px;gap:4px;margin:0 auto 25px;padding:4px;display:flex}.segmented button{color:#68415f;border-radius:4px;flex:1;padding:8px;font-size:11px}.segmented button.active{color:#392238;background:#fff;box-shadow:0 1px 3px #381a3610}.login-panel h1{text-align:center;font-size:24px;font-weight:550}.login-panel>p{text-align:center;margin:14px 0 25px;font-size:12px;line-height:1.9}.login-panel>small{color:#77586e;margin-top:17px;font-size:10px;line-height:1.9;display:block}.login-help{color:#68415f;border-top:1px solid var(--line);justify-content:center;align-items:center;gap:7px;margin-top:24px;padding-top:18px;font-size:10px;display:flex}.class-toolbar{border:1px solid var(--line);background:#fffafb;border-radius:9px;justify-content:space-between;align-items:flex-end;gap:22px;padding:20px 23px;display:flex}.class-select{align-items:center;gap:12px;min-width:0;display:flex}.class-select label{color:#68415f;font-size:11px}.class-select select{min-width:160px;max-width:310px;font-size:12px}.create-class{gap:9px;display:flex}.create-class input{width:190px;min-width:120px;font-size:11px}.tabs{border-bottom:1px solid #e3d4df;gap:28px;margin:26px 0 24px;display:flex;overflow-x:auto}.tabs>button{white-space:nowrap;color:#77586e;border-bottom:2px solid #0000;align-items:center;gap:6px;padding:0 0 14px;font-size:12px;display:flex}.tabs>button.active{color:#392238;border-bottom-color:#a3658f;font-weight:600}.tabs>button>span{background:#f4eaf1;border-radius:4px;padding:0 5px;font-size:9px}.tabs>.refresh{color:#68415f;margin-left:auto}.section-heading{justify-content:space-between;align-items:center;gap:20px;margin:28px 0 18px;display:flex}.section-heading h2{font-size:20px;font-weight:550}.section-heading p{margin-top:7px;font-size:11px}.section-heading>span{color:#77586e;font-size:10px}.section-heading select{padding:7px 10px;font-size:10px}.section-heading.small{margin:18px 0 12px}.section-heading.small h3{margin:0}.inline-actions{align-items:center;gap:13px;display:flex}.empty{color:#68415f;text-align:center;background:#f4eaf1;border:1px dashed #e3d4df;border-radius:8px;padding:35px 25px;font-size:12px;line-height:1.9}.table-scroll{border:1px solid var(--line);background:#fffafb;border-radius:8px;overflow:auto}.data-table{border-collapse:collapse;width:100%;font-size:12px}.data-table th{text-align:left;color:#68415f;letter-spacing:.2px;white-space:nowrap;background:#f4eaf1;padding:15px 18px;font-size:9px;font-weight:500}.data-table td{color:#68415f;white-space:nowrap;border-top:1px solid #e3d4df;padding:18px;font-size:11px}.data-table td:first-child{color:#392238}.data-table tbody tr{cursor:pointer}.data-table td small{color:#77586e;margin-top:5px;font-size:8px;display:block}.data-table td strong{margin-left:7px;font-size:11px;font-weight:550}.student-name{color:#392238;text-align:left;align-items:center;gap:10px;padding:0;font-size:12px;font-weight:550;display:flex}.progress-cell{vertical-align:middle;background:#f4eaf1;border-radius:5px;width:60px;height:4px;display:inline-block;overflow:hidden}.progress-cell i{background:#a8759b;height:100%;display:block}.revoked{opacity:.5}.notice{color:#68415f;background:#f4eaf1;border:1px solid #e3d4df;border-radius:8px;align-items:flex-start;gap:13px;margin-top:23px;padding:19px 22px;display:flex}.notice p{color:#68415f;font-size:11px;line-height:1.9}.panel-title{color:#68415f;align-items:flex-start;gap:13px;margin-bottom:27px;display:flex}.panel-title h2{color:var(--ink)}.panel-title p{margin-top:7px;font-size:12px}.form-grid{grid-template-columns:1fr 1fr;gap:0 22px;display:grid}.form-footer{justify-content:space-between;align-items:center;gap:15px;margin-top:10px;display:flex}.form-footer>span{color:#77586e;font-size:10px}.two-col{grid-template-columns:1.2fr 1fr;gap:24px;display:grid}.help-panel{background:#f4eaf1}.help-panel>svg{color:#68415f;margin-bottom:20px}.help-panel h2{margin-bottom:15px;font-size:20px}.help-panel p{color:#68415f;margin-top:15px;font-size:12px;line-height:1.95}.badge{color:#68415f;white-space:nowrap;background:#f4eaf1;border-radius:4px;width:fit-content;padding:4px 8px;font-size:9px;line-height:1.5;display:inline-flex}.badge.bronze,.badge.pending,.badge.silver,.badge.gold,.badge.active,.badge.reviewed{color:#68415f;background:#f4eaf1}.badge.paused{color:#77586e;background:#f4eaf1}.roster-list{border:1px solid var(--line);background:#fffafb;border-radius:9px;padding:0 22px}.roster-list>div{align-items:center;gap:18px;padding:18px 0;display:flex}.roster-list>div+div{border-top:1px solid var(--line)}.roster-list .student-name{margin-right:auto}.assignment-list{border:1px solid var(--line);background:#fffafb;border-radius:9px;padding:0 23px}.assignment-line{align-items:center;gap:15px;padding:20px 0;display:flex}.assignment-line+.assignment-line{border-top:1px solid var(--line)}.assignment-icon{color:#68415f;background:#f4eaf1;border-radius:8px;place-items:center;width:36px;height:36px;display:grid}.assignment-line>div{flex:1;min-width:0}.assignment-line h3{font-size:14px;font-weight:550}.assignment-line p{color:#77586e;margin-top:5px;font-size:10px}.assignment-line>.text-link{margin-left:10px;font-size:9px}.submission{border:1px solid var(--line);background:#fffafb;border-radius:9px;margin:12px 0;overflow:hidden}.submission summary{cursor:pointer;color:#68415f;align-items:center;gap:13px;padding:19px 23px;list-style:none;display:flex}.submission summary>span:first-of-type{flex:1}.submission summary strong{color:#392238;font-size:13px;font-weight:550}.submission summary small{color:#77586e;margin-top:4px;font-size:9px;display:block}.submission[open] summary{border-bottom:1px solid var(--line)}.submission-content{padding:24px}.submission-content h4{color:#68415f;margin:20px 0 9px;font-size:11px;font-weight:600}.submission-content p{font-size:12px;line-height:1.9}.submission-content pre,.lecture pre{color:#f9edf5;background:#301b35;border-radius:7px;max-height:420px;margin:15px 0;padding:23px;font-size:12px}.preserve{white-space:pre-wrap}.review-form{grid-template-columns:130px 1fr;gap:20px;margin-top:25px;display:grid}.review-form .btn{grid-column:2;justify-self:start}.feedback{background:#f4eaf1;border:1px solid #e3d4df;border-radius:6px;margin-top:16px;padding:14px 17px}.feedback strong{color:#68415f;font-size:13px}.feedback p{white-space:pre-wrap;margin-top:7px;font-size:12px;line-height:1.85}.muted{color:#77586e!important}.fineprint{margin:18px 0;color:#77586e!important;font-size:10px!important;line-height:1.9!important}.back{color:#68415f;align-items:center;gap:6px;margin:0 0 20px;padding:0;font-size:11px;display:inline-flex}.activity-chart{margin-bottom:28px}.bars{align-items:flex-end;gap:12px;height:210px;margin:20px 0 12px;display:flex}.bars>div{flex-direction:column;flex:1;justify-content:flex-end;align-items:center;min-width:0;height:100%;display:flex}.bars span{color:#68415f;margin-bottom:5px;font-size:9px}.bars i{background:#a8759b;border-radius:4px 4px 0 0;width:100%;max-width:32px;display:block}.bars small{color:#77586e;white-space:nowrap;margin-top:8px;font-size:8px}.student-tasks{grid-template-columns:repeat(2,1fr);gap:22px;display:grid}.task-card{border:1px solid var(--line);background:#fffafb;border-radius:9px;flex-direction:column;align-items:flex-start;padding:25px;display:flex}.task-top{justify-content:space-between;align-items:center;gap:10px;width:100%;margin-bottom:18px;display:flex}.task-top small{color:#77586e;font-size:9px}.task-card h3{margin-bottom:9px;font-size:20px;font-weight:550}.task-problem{color:#68415f;margin-bottom:12px;font-size:11px}.task-card>p{margin-bottom:18px;font-size:12px;line-height:1.9}.task-card>.btn{margin-top:auto}.task-card .feedback{width:100%;margin:0 0 19px}.lesson-shortcut{color:#68415f;text-align:left;background:#f4eaf1;border:1px solid #e3d4df;border-radius:6px;align-items:center;gap:9px;width:100%;margin:4px 0 20px;padding:12px;font-size:11px;display:flex}.lesson-shortcut span{flex:1}.filters{justify-content:space-between;align-items:center;gap:20px;margin:26px 0 23px;display:flex}.track-tabs{background:#f4eaf1;border:1px solid #e3d4df;border-radius:7px;flex-wrap:wrap;gap:3px;padding:4px;display:flex}.track-tabs button{color:#68415f;white-space:nowrap;border-radius:4px;padding:7px 10px;font-size:10px}.track-tabs button.active{color:#392238;background:#fff;box-shadow:0 1px 3px #381a3610}.search{color:#77586e;align-items:center;gap:8px;display:flex}.search input{background:#fffafb;max-width:180px;font-size:10px}.lesson-list{border:1px solid var(--line);background:#fffafb;border-radius:9px;overflow:hidden}.lesson-row{text-align:left;align-items:center;gap:20px;width:100%;padding:23px;display:flex}.lesson-row+.lesson-row{border-top:1px solid var(--line)}.lesson-row:hover{background:#f4eaf1}.row-number{color:#77586e;background:#f4eaf1;border-radius:8px;place-items:center;width:38px;height:38px;font-size:15px;display:grid}.row-number.complete{color:#68415f;background:#e8d7e4}.lesson-row>div{flex:1}.lesson-row small{color:#68415f;font-size:9px}.lesson-row h3{margin:5px 0;font-size:15px;font-weight:550}.lesson-row p{color:#77586e;font-size:11px}.lesson-row>svg{color:#77586e}.duration{white-space:nowrap;color:#77586e;align-items:center;gap:6px;font-size:9px;display:flex}.problem-grid,.resource-grid{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}.problem-card,.resource-card{border:1px solid var(--line);text-align:left;background:#fffafb;border-radius:9px;flex-direction:column;align-items:stretch;padding:24px;transition:transform .2s,box-shadow .2s;display:flex}.problem-card:hover,.resource-card:hover{transform:translateY(-3px);box-shadow:0 7px 20px #381a360b}.problem-card>div{justify-content:space-between;align-items:center;gap:10px;display:flex}.problem-card small{color:#77586e;font-size:9px}.problem-card h3,.resource-card h3{margin:20px 0 12px;font-size:19px;font-weight:550}.problem-card p,.resource-card p{margin-bottom:22px;font-size:12px;line-height:1.85}.problem-card footer{border-top:1px solid var(--line);color:#68415f;justify-content:space-between;align-items:center;margin-top:auto;padding-top:15px;font-size:9px;display:flex}.resource-card>svg{color:#68415f}.resource-card small{color:#77586e;margin-top:auto;font-size:9px}.lecture-layout{grid-template-columns:minmax(0,1fr) 250px;gap:27px;display:grid}.lecture{padding:34px 38px}.lecture-meta{justify-content:space-between;align-items:center;display:flex}.lecture-meta>span:last-child{color:#77586e;align-items:center;gap:6px;font-size:10px;display:flex}.lecture h1{margin:25px 0 14px;font-size:30px;font-weight:550;line-height:1.4}.lecture .lead{color:#68415f;font-size:15px;line-height:1.8}.lecture section{margin-top:33px}.lecture section h2{margin-bottom:13px;font-size:20px}.lecture section>p{color:#68415f;font-size:13px;line-height:1.95}.lecture pre{max-height:none;margin-top:20px;font-size:12px}.lesson-note{color:#68415f;background:#f4eaf1;border:1px solid #e3d4df;border-radius:7px;gap:14px;margin-top:30px;padding:20px;display:flex}.lesson-note strong{font-size:12px}.lesson-note p{color:#68415f;margin-top:7px;font-size:12px;line-height:1.9}.quiz{background:#f4eaf1;border:1px solid #e3d4df;border-radius:8px;margin-bottom:25px;padding:23px}.quiz h3{margin:10px 0 18px;font-size:17px;font-weight:550;line-height:1.7}.quiz button{text-align:left;background:#fffafb;border:1px solid #e3d4df;border-radius:6px;align-items:center;gap:12px;width:100%;margin:8px 0;padding:12px;font-size:12px;display:flex}.quiz button>span{color:#77586e;background:#f4eaf1;border-radius:4px;place-items:center;width:21px;height:21px;font-size:9px;display:grid}.quiz button>svg{color:#68415f;margin-left:auto}.quiz .chosen,.quiz .correct{background:#f4eaf1;border-color:#a3658f}.quiz>p{margin-top:16px;font-size:12px!important}.lecture-side{flex-direction:column;gap:20px;display:flex}.lecture-side>.panel{padding:23px}.lecture-side svg{color:#68415f}.lecture-side h3{margin:18px 0 10px;font-size:18px;font-weight:550}.lecture-side p{margin-bottom:20px;font-size:12px;line-height:1.8}.mock-panel{color:#f9edf5;background:#301b35;border-radius:11px;justify-content:space-between;align-items:center;gap:20px;margin:0 0 28px;padding:30px;display:flex}.mock-panel>div{align-items:center;gap:18px;display:flex}.mock-panel strong{letter-spacing:-1px;font:33px Computer Modern Typewriter}.mock-panel span{color:#77586e;font-size:10px}.mock-panel>div>svg{color:#77586e}.mock-panel .btn{color:#392238;background:#e8d7e4}.timer-badge{color:#68415f;background:#f4eaf1;border-radius:5px;align-items:center;gap:6px;padding:5px 9px;font-size:10px;display:flex}.lab-heading{justify-content:space-between;align-items:center;gap:20px;margin-bottom:23px;display:flex}.lab-heading .back{margin-bottom:9px}.lab-heading h1{align-items:center;gap:13px;font-size:27px;font-weight:550;display:flex}.lab-buttons{gap:8px;display:flex}.lab-buttons .btn{padding:10px 14px;font-size:10px}.assignment-banner{color:#68415f;background:#f4eaf1;border:1px solid #e3d4df;border-radius:8px;align-items:center;gap:14px;margin-bottom:22px;padding:17px 22px;display:flex}.assignment-banner>div{flex:1;min-width:0}.assignment-banner strong{color:#68415f;font-size:13px}.assignment-banner p{color:#68415f;white-space:pre-wrap;margin-top:4px;font-size:11px;line-height:1.8}.lab-grid{grid-template-columns:minmax(260px,.8fr) minmax(0,1.6fr);gap:20px;display:grid}.statement{max-height:930px;padding:25px;overflow:auto}.statement h2{margin:18px 0 14px;font-size:22px}.statement h3{letter-spacing:0;margin:24px 0 10px;font-size:13px;font-weight:600}.constraint{background:#f4eaf1;border-left:2px solid #e3d4df;padding:12px;font-size:11px!important}.statement .text-link{font-size:9px}.code-label{letter-spacing:1px;color:#77586e;margin:12px 0 7px;font-size:8px;display:block}.statement pre{color:#68415f;background:#f4eaf1;border-radius:5px;margin:0 0 15px;padding:12px;font-size:11px}.statement details{border-top:1px solid var(--line);margin-top:15px;padding-top:14px}.statement summary{color:#68415f;cursor:pointer;font-size:11px}.statement details>p{margin-top:11px}.submit-form{border-top:1px solid var(--line);margin-top:25px}.submit-form .field{margin-top:15px}.submit-form small{color:#77586e;margin-top:12px;font-size:9px;line-height:1.9;display:block}.editor-panel{background:#301b35;border-radius:9px;flex-direction:column;min-width:0;display:flex;overflow:hidden}.editor-top{color:#77586e;background:#301b35;border-bottom:1px solid #a3658f;justify-content:space-between;align-items:center;padding:14px 17px;font-size:11px;display:flex}.editor-top>span,.editor-top>div{align-items:center;gap:11px;display:flex}.editor-top>div>span{color:#68415f;font-size:9px}.editor-top button{color:#68415f;padding:0;display:flex}.code-host{min-width:0;height:420px}.editor-loading{color:#77586e;height:420px;padding:25px;font-size:12px}.editor-status{color:#68415f;background:#301b35;justify-content:space-between;gap:10px;padding:8px 13px;font-size:8px;display:flex}.editor-status>span:first-child{align-items:center;gap:6px;display:flex}.editor-status i{background:#a8759b;border-radius:50%;width:4px;height:4px}.io-grid{background:#fffafb;flex:1;grid-template-columns:.8fr 1.2fr;min-height:270px;display:grid}.io-grid>section{flex-direction:column;min-width:0;display:flex}.io-grid>section+section{border-left:1px solid #e3d4df}.io-title{color:#68415f;letter-spacing:.7px;border-bottom:1px solid #e3d4df;justify-content:space-between;align-items:center;gap:8px;height:43px;padding:12px 14px;font-size:7px;display:flex}.io-title button{letter-spacing:0;color:#68415f;padding:0;font-size:7px}.io-grid textarea{resize:vertical;color:#68415f;background:#fffafb;border:0;border-radius:0;outline:0;flex:1;width:100%;min-height:220px;padding:16px;font:11px/1.8 Computer Modern Typewriter}.io-grid pre{color:#68415f;max-height:380px;margin:0;padding:15px;font-size:10px}.lab-limit{color:#68415f;background:#f4eaf1;border:1px solid #e3d4df;border-radius:7px;align-items:flex-start;gap:12px;margin-top:20px;padding:16px 19px;display:flex}.lab-limit p{color:#68415f;font-size:10px;line-height:1.9}.runtime{display:none}.privacy{max-width:820px;margin:15px auto;padding:38px}.privacy h1{margin:12px 0 30px;font-size:29px;font-weight:550}.privacy h2{margin:28px 0 12px;font-size:19px}.privacy p{font-size:13px;line-height:1.95}.modal-backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;background:#381a3643;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.modal{background:#fffafb;border:1px solid #e3d4df;border-radius:12px;width:600px;max-width:100%;max-height:90vh;padding:32px;position:relative;overflow:auto;box-shadow:0 25px 70px #381a3622}.modal-close{color:#68415f;padding:0;display:flex;position:absolute;top:18px;right:18px}.modal h2{margin:8px 0 12px;font-size:25px;font-weight:550}.modal>p{margin-bottom:20px;font-size:12px;line-height:1.9}.code-list{max-height:49vh;overflow:auto}.code-list>div{border:1px solid var(--line);background:#f4eaf1;border-radius:7px;margin:12px 0;padding:18px}.code-list strong{font-size:12px;display:block}.code-list code{color:#68415f;word-break:break-all;margin:10px 0 13px;font-size:12px;display:block}.code-list>div>div{gap:22px;display:flex}.code-list .text-link{font-size:10px}.toast{color:#f9edf5;z-index:110;background:#512645;border:1px solid #a3658f;border-radius:8px;align-items:center;gap:12px;max-width:80vw;padding:15px 18px;font-size:12px;display:flex;position:fixed;bottom:24px;left:calc(50% + 80px);transform:translate(-50%);box-shadow:0 6px 20px #381a3620}.toast>span{line-height:1.7}.toast button{margin-left:8px;padding:0;display:flex}.menu-button,.close-menu{display:none}@media (width>=1600px){.content{padding-top:45px}.portal-card{padding:38px}.portal-card h2{font-size:29px}.portal-card p{font-size:14px}.metric{padding:24px}.problem-card p{font-size:13px}}@media (width<=1250px){.side{width:205px;padding-left:12px;padding-right:12px}.main{margin-left:205px}.content{padding:30px 26px 0}.top{padding:0 26px}.top-actions{gap:17px}.class-toolbar{gap:15px}.class-select select{max-width:230px}.create-class input{width:145px}.metric{padding:18px}.metric>span{font-size:9px}.metric strong{font-size:26px}.scope-grid{gap:12px}.portal-card{padding:27px}.portal-card p{font-size:12px}.problem-grid,.resource-grid{gap:16px}.problem-card,.resource-card{padding:21px}.lecture-layout{grid-template-columns:minmax(0,1fr) 220px;gap:20px}.lecture{padding:28px}.lab-grid{grid-template-columns:280px minmax(0,1fr);gap:16px}.lab-buttons .btn{padding:9px 11px}.section-heading p{max-width:400px}.data-table th,.data-table td{padding:15px}.roster-list{padding:0 17px}}@media (width<=1050px){.side{width:190px}.main{margin-left:190px}.brand{margin-left:5px}.brand>div{font-size:18px}.brand small{font-size:8px}.brand>span{width:35px;height:38px}.side nav button{gap:10px;padding:12px 10px;font-size:11px}.side-info{padding:16px 12px}.side-info p{font-size:10px}.content{padding:28px 22px 0}.top{padding:0 22px}.account>div{max-width:150px;font-size:10px}.account small{font-size:8px}.heading h1{font-size:27px}.portal-card p{min-height:105px}.metric strong{font-size:25px}.metric small{font-size:9px}.class-toolbar{flex-wrap:wrap;align-items:center}.class-select{flex:1}.create-class{flex:1;justify-content:flex-end}.scope-grid{grid-template-columns:repeat(2,1fr)}.metric{padding:20px}.metric>span,.metric small{font-size:10px}.section-heading{align-items:flex-start;gap:16px}.section-heading>.inline-actions{flex-direction:column;align-items:stretch;gap:8px}.section-heading>.inline-actions>.btn{padding:8px 12px;font-size:9px}.two-col{grid-template-columns:1fr}.help-panel{padding:23px}.help-panel>svg{margin-bottom:8px}.help-panel p{margin-top:9px}.student-tasks{gap:16px}.task-card{padding:22px}.task-card h3{font-size:18px}.problem-grid,.resource-grid{grid-template-columns:repeat(2,1fr)}.lecture-layout{grid-template-columns:1fr}.lecture-side{grid-template-columns:1fr 1fr;display:grid}.filters{align-items:flex-start}.search input{width:130px}.lab-grid{grid-template-columns:1fr}.statement{max-height:470px}.lab-heading h1{font-size:24px}.code-host{height:400px}.lab-limit p{font-size:11px}.roster-list>div{flex-wrap:wrap}.roster-list .inline-actions{margin-left:42px}.assignment-line{flex-wrap:wrap}.assignment-line>.badge{margin-left:50px}.assignment-line>.text-link{margin-left:auto}.bars{gap:8px}.bars small{font-size:7px}.tabs{gap:23px}.privacy{padding:30px}}@media (width<=760px){.side{display:none}.side.open{width:242px;display:flex;box-shadow:15px 0 50px #381a3633}.main{margin-left:0}.close-menu{color:#68415f;padding:0;display:block;position:absolute;top:14px;right:12px}.menu-button{color:#392238;padding:0;display:flex}.side nav button{padding:14px;font-size:13px}.side .brand{margin-top:8px}.brand>div{font-size:21px}.brand small{font-size:9px}.top{gap:13px;height:67px;padding:0 18px}.top-actions{gap:12px;margin-left:auto}.page-name,.account>div{display:none}.account{padding:0}.account>span{width:28px;height:28px;font-size:10px}.language button{padding:5px 7px;font-size:9px}.signin{gap:5px;padding:7px 9px;font-size:10px}.content{padding:25px 19px 0}.heading{margin-bottom:23px}.heading h1{margin-top:7px;font-size:28px}.heading p{font-size:12px}.heading.split{align-items:flex-start;gap:15px}.heading.split .text-link{white-space:nowrap;margin-top:8px;font-size:9px}.heading h1 small{margin:9px 0 0;font-size:16px;display:block}.portal-choices{grid-template-columns:1fr;gap:18px}.portal-card{padding:28px}.portal-card h2{font-size:26px}.portal-card p{min-height:0;margin-bottom:22px;font-size:13px}.portal-symbol{margin-bottom:20px}.portal-card small{font-size:10px}.course-entry{flex-direction:column;align-items:flex-start;gap:18px;padding:24px}.course-entry h2{font-size:20px}.scope-grid{gap:12px;margin-top:20px}.metric{padding:18px}.metric>span{font-size:9px}.metric strong{font-size:27px}.metric small{font-size:9px}.footer{flex-wrap:wrap;gap:15px;margin-top:28px;padding:22px 0}.footer>span{width:100%}.panel{padding:22px}.panel h2{font-size:19px}.login-panel{margin:15px auto 50px;padding:29px 24px}.login-panel h1{font-size:23px}.login-panel>p{font-size:12px}.class-toolbar{gap:18px;padding:18px}.class-select{flex:auto;width:100%}.class-select select{flex:1;max-width:none}.create-class{flex:auto;justify-content:stretch;width:100%}.create-class input{flex:1;width:100%;min-width:0}.create-class .btn{padding:10px 12px;font-size:10px}.tabs{gap:22px;margin-top:23px}.tabs>button{font-size:11px}.section-heading{margin:23px 0 16px}.section-heading h2{font-size:19px}.section-heading p{font-size:11px;line-height:1.85}.section-heading>.inline-actions{gap:6px}.section-heading>.inline-actions .btn{padding:8px 10px;font-size:8px}.data-table th{padding:12px;font-size:8px}.data-table td{padding:14px 12px;font-size:10px}.data-table .student-name{font-size:11px}.notice{gap:10px;padding:17px}.notice p{font-size:10px}.form-grid{grid-template-columns:1fr}.form-footer{flex-wrap:wrap;gap:17px}.form-footer>span{font-size:10px}.assignment-form .form-footer .btn{width:100%}.panel-title{gap:11px;margin-bottom:22px}.panel-title p{font-size:11px}.roster-list{padding:0 16px}.roster-list>div{gap:12px;padding:17px 0}.roster-list .student-name{flex:1;font-size:12px}.roster-list .inline-actions{justify-content:space-between;width:100%;margin:0 0 0 42px}.roster-list .text-link{font-size:10px}.assignment-list{padding:0 17px}.assignment-line{gap:12px}.assignment-line h3{font-size:13px}.assignment-line p{font-size:9px;line-height:1.8}.assignment-line>.badge{margin-left:48px}.assignment-line>.text-link{font-size:9px}.assignment-icon{width:34px;height:34px}.submission summary{gap:9px;padding:17px 16px}.submission summary strong{font-size:12px}.submission summary small,.submission summary>.badge{font-size:8px}.submission summary>svg:first-child{display:none}.submission-content{padding:18px}.submission-content pre{padding:16px;font-size:11px}.review-form{grid-template-columns:1fr;gap:0}.review-form .btn{grid-column:1}.review-form .field:first-child{max-width:140px}.bars{gap:5px;height:190px}.bars small{writing-mode:vertical-rl;height:40px;font-size:7px}.bars span{font-size:8px}.student-tasks{grid-template-columns:1fr}.task-card{padding:24px}.task-card h3{font-size:21px}.task-card>p{font-size:12px}.filters{flex-direction:column;align-items:stretch;gap:17px}.track-tabs{gap:4px}.track-tabs button{padding:7px 9px;font-size:10px}.search input{width:100%;max-width:none}.lesson-row{gap:12px;padding:17px 14px}.lesson-row>div h3{font-size:14px}.lesson-row small{font-size:8px}.lesson-row p{display:none}.row-number{width:31px;height:31px;font-size:13px}.duration{font-size:8px}.duration>svg,.lesson-row>svg{display:none}.problem-grid,.resource-grid{grid-template-columns:1fr;gap:16px}.problem-card,.resource-card{padding:24px}.problem-card h3,.resource-card h3{font-size:21px}.problem-card p,.resource-card p{font-size:12px}.lecture{padding:25px 20px}.lecture h1{font-size:27px}.lecture .lead{font-size:14px}.lecture section h2{font-size:20px}.lecture section>p{font-size:13px}.lecture pre{padding:16px;font-size:11px}.lecture-side{grid-template-columns:1fr}.lecture-side .btn{font-size:11px}.lesson-note{gap:11px;padding:17px}.lesson-note p{font-size:11px}.quiz{padding:18px}.quiz h3{font-size:16px}.quiz button{font-size:11px}.lecture>.btn{width:100%}.mock-panel{flex-direction:column;align-items:flex-start;gap:22px;padding:25px}.mock-panel>div{flex-wrap:wrap;gap:12px}.mock-panel strong{font-size:31px}.mock-panel span{font-size:9px}.timer-badge{padding:4px 7px;font-size:8px}.timer-badge>svg{display:none}.lab-heading{flex-direction:column;align-items:stretch;gap:18px}.lab-heading h1{flex-wrap:wrap;font-size:24px}.lab-buttons{grid-template-columns:1fr 1fr 1fr;gap:9px;display:grid}.lab-buttons .btn{padding:11px 13px;font-size:11px}.assignment-banner{flex-wrap:wrap;align-items:flex-start;gap:11px;padding:17px}.assignment-banner>div{min-width:80%}.assignment-banner>.text-link{margin-left:30px;font-size:10px}.statement{max-height:490px;padding:23px}.statement h2{font-size:23px}.statement p{font-size:12px}.statement .eyebrow{font-size:8px}.code-host,.editor-loading{height:370px}.editor-status{padding:9px 12px;font-size:8px}.io-grid{grid-template-columns:1fr}.io-grid>section+section{border-top:1px solid #e3d4df;border-left:0}.io-grid textarea{min-height:130px}.io-grid pre{min-height:170px;max-height:450px;font-size:11px}.io-title{height:43px;padding:12px 15px;font-size:8px}.io-title button{font-size:8px}.lab-limit p{font-size:10px}.privacy{margin-top:0;padding:25px 22px}.privacy h1{font-size:27px}.privacy p{font-size:12px}.modal-backdrop{padding:17px}.modal{padding:27px 22px}.modal h2{font-size:24px}.code-list code{font-size:11px}.modal .form-footer{grid-template-columns:1fr 1fr;gap:10px;display:grid}.modal .btn{padding:10px;font-size:10px}.toast{gap:9px;width:max-content;max-width:90vw;padding:13px 15px;font-size:11px;left:50%}.toast>span{max-width:72vw}.toast>svg{width:16px}.toast button{margin-left:3px}}@media (width>=761px){.heading p,.panel-intro,.section-heading p{font-size:13px}.data-table td{font-size:12px}.data-table th{font-size:10px}.side nav button{font-size:13px}.field>span{font-size:12px}.field input,.field select,.field textarea{font-size:13px}.notice p{font-size:12px}}:root{color:#392238;--burgundy:#7d294b;--plum:#512645;--ink:#392238;--muted:#77586e;--line:#e3d4df;--paper:#fffafb;--light:#f2e6ee;background:#faf6f8}.side{color:#f8eef5;background:#38203d;border-right:0}.brand>span{color:#ffebf3;background:#7d294b}.brand>div{color:#fff7fb}.brand small,.side-label{color:#dfc5dc}.side nav button{color:#e8d5e7}.side nav button.selected{color:#fff8fb;background:#7d294b}.nav-point{background:#f0bfd5}.side-info{background:#45294a;border-color:#6b476d}.side-info>span,.side-info p{color:#e0c8dc}.side-info strong{color:#fff5fb}.side-info button{color:#f2d3e7;border-color:#75536f}.side-footer,.side-footer small{color:#d4b9d0}.close-menu{color:#f4dce9}.top{background:#fffafb;border-bottom:2px solid #e8d7e2}.heading{border-left:4px solid #8e365b;padding-left:20px}.heading>span,.heading>div>span,.eyebrow{color:#854263}.heading p{color:#70556a}.portal-choices{gap:24px}.portal-card{border-radius:16px;padding:34px}.teacher-card{color:#fff5fa;background:#752b49;border-color:#752b49}.teacher-card .portal-symbol{color:#fff0f6;background:#934a68}.teacher-card p,.teacher-card small{color:#f1dae6}.teacher-card .btn{color:#6a2342;background:#fff0f6}.teacher-card .btn:hover{background:#f0d5e3}.student-card{background:#fcf8fc;border-top:5px solid #674069}.student-card .portal-symbol{color:#603263;background:#eadced}.portal-card small{color:#77586e}.teacher-card small{color:#f1dae6}.btn{color:#fff6fa;background:#7d294b}.btn.secondary{color:#683756;background:#f4eaf1;border-color:#d8bfd0}.btn.secondary:hover{background:#ead9e5}.btn.danger{background:#a13353}.text-link{color:#793656}.text-link:hover{color:#512645}.language button,.segmented button,.track-tabs button{color:#75526d}.language button.active,.segmented button.active,.track-tabs button.active{color:#742747}.portal-card,.panel,.task-card,.course-entry,.metric,.problem-card,.resource-card{box-shadow:0 3px 14px #49233d05}.metric{border-top:3px solid #b780a6;border-radius:10px}.metric strong{color:#642b50}.notice p,.fineprint,.muted{color:#72556c!important}.badge.pending,.badge.bronze{color:#80344e;background:#f6e3e9}.badge.reviewed,.badge.active{color:#603568;background:#ebdfee}.badge.silver{color:#5d4d72;background:#eae5f0}.badge.gold{color:#765521;background:#f3e7d2}.feedback{background:#f1e6f1;border-color:#d9bfd9}.feedback strong{color:#6f3261}.progress-cell i,.bars i{background:#97517f}.data-table th{color:#68455f;background:#f1e5ee}.data-table td{color:#69465f}.data-table td:first-child,.student-name{color:#642b50}.data-table tbody tr:hover{background:#faf0f6}.lecture pre,.submission-content pre{color:#f2ddeb;background:#2b1b31}.quiz .correct{background:#efe1ed;border-color:#a86f98}.quiz .chosen{background:#f6e5ee;border-color:#a4547c}.lesson-note{color:#7d5831;background:#f8ecdf;border-color:#e7cfaf}.lesson-note p{color:#725638}.editor-panel{background:#26172d}.editor-top{color:#edd6e9;background:#38203d;border-color:#674261}.editor-top>div>span,.editor-top button{color:#dfbfd7}.editor-status{color:#ead0e1;background:#402442}.editor-status i{background:#e3a7cb}.editor-loading{color:#ead0e1}.io-grid{background:#fcf6fa}.io-title,.io-title button{color:#76506d}.io-grid textarea{color:#5f3b57;background:#fffafb}.io-grid pre{color:#5f3b57}@media (width<=760px){.heading{padding-left:15px}.portal-card{padding:27px}.student-card{border-top-width:4px}.side.open{background:#38203d}.close-menu{color:#f4dce9}}.example-workbench{background:#fffdf9;border:1px solid #cdbfca;min-width:0;margin:0;padding:26px 30px}.example-caption{color:#786373;border-bottom:1px solid #d9ced5;justify-content:space-between;gap:15px;padding-bottom:12px;font-size:12px;display:flex}.example-caption span:first-child{color:#8d3954}.example-workbench h2{color:#462b41;margin:23px 0 12px;font-size:29px;font-weight:400;line-height:1.15}.example-before{max-width:650px;margin:15px 0 10px;font-size:16px;line-height:1.65}.algorithm-diagram{width:100%;height:auto;margin:17px 0 8px;display:block;overflow:visible}.algorithm-diagram text{font-family:Computer Modern Serif}.example-adjust{border-bottom:1px solid #d9ced5;padding:9px 0 18px}.range-options{justify-content:center;gap:9px;display:flex}.range-options button{border:1px solid #d7cbd2;padding:5px 17px;font-size:14px}.range-options button[aria-pressed=true]{color:#2c6595;background:#e2edf4;border-color:#2c6595}.example-step{justify-content:space-between;align-items:center;gap:15px;display:flex}.example-step>span{text-align:center;font-size:15px}.example-step button{border:1px solid #cdbfca;width:40px;height:34px;font-size:20px;line-height:1}.example-adjust label{justify-content:center;align-items:center;gap:12px;margin-top:10px;font-size:14px;display:flex}.example-adjust input{accent-color:#2c6595;width:160px;height:20px;padding:0}.prediction{padding:21px 0 0}.prediction h3{margin-bottom:13px;font-size:21px;font-weight:400;line-height:1.4}.prediction-choices{flex-wrap:wrap;gap:9px;display:flex}.prediction-choices button{color:#462b41;background:#fffdf9;border:1px solid #cdbfca;padding:7px 15px;font-size:16px;line-height:1.45}.prediction-choices button:hover{border-color:#2c6595}.prediction-choices .answer-correct{color:#245780;background:#e2edf4;border-color:#2c6595}.prediction-choices .answer-try{background:#f3e3e9;border-color:#8d3954}.explain-example{color:#2c6595;border-bottom:1px solid #9eacb8;margin-top:17px;padding:0;font-size:13px}.example-result{border-left:2px solid #2c6595;margin-top:20px;padding:0 0 0 18px}.example-result>strong{color:#2c6595;font-size:13px;font-weight:400}.example-result p{margin:11px 0 0;font-size:16px;line-height:1.65}.example-formula{color:#2c6595;margin-top:9px;font-size:25px;line-height:1.4}.example-open{color:#2c6595;border-bottom:1px solid #9eacb8;margin-top:22px;padding:0 0 3px;font-size:15px}.example-compact{border-top:3px solid #2c6595;padding:21px 25px;box-shadow:7px 7px #eae2e6}.example-compact h2{margin-bottom:3px;font-size:27px}.example-compact .example-caption span:last-child{display:none}.example-compact .algorithm-diagram{margin-top:12px}.example-compact .prediction h3{font-size:20px}.example-compact .example-result p{font-size:15px}.worked-layout{grid-template-columns:245px minmax(0,1fr);align-items:start;gap:40px;display:grid}.example-picker{border-top:1px solid #462b41}.example-picker button{text-align:left;border-bottom:1px solid #d9ced5;gap:15px;width:100%;padding:16px 12px;font-size:16px;line-height:1.3;display:flex}.example-picker button>span{color:#8d3954;min-width:12px;font-size:12px}.example-picker button[aria-current]{color:#2c6595;background:#e2edf4;border-left:3px solid #2c6595;padding-left:9px}.example-loading,.study-loading{color:#8d3954;background:#f4eee9;place-items:center;min-height:300px;display:grid}@media (width<=950px){.worked-layout{grid-template-columns:1fr;gap:24px}.example-picker{display:flex;overflow:auto}.example-picker button{border:1px solid #d9ced5;align-items:center;min-width:170px;font-size:14px}.example-picker button[aria-current]{border-bottom:3px solid #2c6595;border-left:1px solid #d9ced5;padding-left:12px}}@media (width<=600px){.example-workbench{padding:18px}.example-workbench h2{font-size:25px}.example-caption{font-size:11px}.example-caption span:last-child{display:none}.prediction h3{font-size:20px}.example-result p{font-size:15px}.example-formula{font-size:22px}.example-compact{box-shadow:4px 4px #eae2e6}.algorithm-diagram{margin:20px 0}.prediction-choices button{padding:8px 13px}}@media (prefers-reduced-motion:no-preference){.example-result{animation:.2s ease-out show-result}@keyframes show-result{0%{opacity:.5;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}}@media (width<=650px){.example-compact .algorithm-diagram{width:calc(100% + 14px);margin-left:-7px}.example-compact .example-caption{padding-bottom:10px}}.diagram-scroll{overscroll-behavior-x:contain;overflow-x:auto}.diagram-scroll .algorithm-diagram{max-height:none}@media (width<=650px){.wide-diagram .algorithm-diagram{min-width:570px}.wide-diagram{border-bottom:1px solid #d9ced5}.example-compact .diagram-scroll{overflow:visible}}@font-face{font-family:Computer Modern Serif;src:url(/fonts/cmunrm.woff)format("woff");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:Computer Modern Serif;src:url(/fonts/cmunbx.woff)format("woff");font-weight:700;font-style:normal;font-display:swap}@font-face{font-family:Computer Modern Serif;src:url(/fonts/cmunti.woff)format("woff");font-weight:400;font-style:italic;font-display:swap}@font-face{font-family:Computer Modern Serif;src:url(/fonts/cmunbi.woff)format("woff");font-weight:700;font-style:italic;font-display:swap}@font-face{font-family:Computer Modern Typewriter;src:url(/fonts/cmuntt.woff)format("woff");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:Computer Modern Typewriter;src:url(/fonts/cmuntb.woff)format("woff");font-weight:700;font-style:normal;font-display:swap}@font-face{font-family:Computer Modern Typewriter;src:url(/fonts/cmunit.woff)format("woff");font-weight:400;font-style:italic;font-display:swap}@font-face{font-family:Computer Modern Typewriter;src:url(/fonts/cmuntx.woff)format("woff");font-weight:700;font-style:italic;font-display:swap}:root,body,button,input,select,textarea,h1,h2,h3,h4,p{font-family:Computer Modern Serif}code,pre,.cm-editor,.cm-scroller,.cm-gutters,.cm-tooltip,.cm-tooltip *{font-family:Computer Modern Typewriter!important}body{font-size:16px}.side nav button{font-size:14px}.side-label,.brand small,.page-name,.folio-label{font-size:11px}.notebook-mast,.note-caption{letter-spacing:.8px;font-size:10px}.note-subtitle,.note-subtitle>span,.query-bracket{font-size:11px}.prefix-totals small{font-size:9px}.note-controls>span{font-size:10px}.note-controls button,.note-lesson,.access-note,.language button{font-size:12px}.notebook-title h1{letter-spacing:-2px}@media (width<=760px){.side nav button{font-size:15px}.notebook-mast{font-size:9px}.notebook-title h1{font-size:62px}.notebook-title>p{font-size:16px}.note-caption,.query-bracket{font-size:10px}.note-controls>span{font-size:9px}.prefix-notebook h2{font-size:28px}}@media (width<=370px){.notebook-title h1{font-size:52px}.notebook-mast{font-size:8px}.query-bracket{font-size:9px}.note-controls>span{font-size:8px}}:root{--paper:#fffdf9;--ink:#462b41;--burgundy:#8d3954;--line:#d9ced5;color:var(--ink);background:#f8f4ef}body{background:#f8f4ef;font-size:17px}p{color:#685763}h1,h2,h3{letter-spacing:-.025em}button,a,summary,input{touch-action:manipulation}.shell{min-height:100vh}.side{color:#462b41;background:#fffdf9;border:0;border-top:4px solid #462b41;border-bottom:1px solid #d9ced5;flex-direction:row;justify-content:space-between;align-items:center;gap:35px;width:100%;height:82px;padding:0 max(30px,50vw - 620px);display:flex;position:relative;inset:auto}.brand{flex-shrink:0;gap:13px;margin:0}.brand-logo{width:50px;height:50px}.brand>div{letter-spacing:-.5px;color:#462b41;align-items:baseline;gap:7px;font-size:23px;font-weight:400;display:flex}.brand small{color:#8d3954;letter-spacing:-.5px;margin:0;font-size:23px;font-weight:400;display:inline}.side-label,.side-info,.side-footer,.nav-index,.nav-point{display:none}.side nav{align-items:center;gap:22px;height:100%;display:flex}.side nav button{color:#725665;border-bottom:3px solid #0000;border-radius:0;gap:0;width:auto;height:100%;margin:0;padding:0;font-size:15px;font-weight:400;display:flex}.side nav button:hover{color:#8d3954;background:0 0}.side nav button.selected{color:#462b41;background:0 0;border-bottom-color:#8d3954;font-weight:700}.main{margin-left:0}.top{background:0 0;border:0;gap:20px;max-width:1240px;height:53px;margin:0 auto;padding:0}.page-name{color:#8d3954;font-size:12px}.top-actions{gap:19px}.share-hub{color:#6a6170;align-items:center;gap:7px;font-size:12px;display:flex}.language{background:0 0;border:0;gap:10px;padding:0}.language button{border-radius:0;padding:0 0 2px;font-size:12px}.language button.active{box-shadow:none;color:#462b41;background:0 0;border-bottom:1px solid #8d3954}.signin{border:1px solid #c7b6c1;border-radius:2px;padding:5px 10px;font-size:12px}.account>div{font-size:13px}.account small{font-size:11px}.content{max-width:1240px;margin:auto;padding:28px 0 0}.close-menu,.menu-button{display:none}.btn{background:#8d3954;border-radius:2px;gap:25px;padding:12px 18px;font-size:15px;font-weight:400}.btn:hover{background:#762d46}.btn.secondary{color:#6f3a53;background:#fffdf9;border-color:#cdbfca;border-radius:2px}.text-link{color:#2c6595;font-size:14px}.heading{border:0;margin:5px 0 35px;padding:0}.heading>span,.heading>div>span,.course-label{letter-spacing:.03em;color:#8d3954;font-size:12px;font-weight:400}.heading h1{margin:10px 0;font-size:42px;font-weight:400;line-height:1.2}.heading p{max-width:780px;font-size:17px;line-height:1.6}.home-intro{grid-template-columns:1fr 1fr;align-items:start;gap:85px;padding:22px 0 55px;display:grid}.home-intro>div:first-child{padding-top:34px}.home-intro h1{white-space:pre-line;letter-spacing:-2px;max-width:550px;margin:24px 0;font-size:63px;font-weight:400;line-height:1.02}.home-intro>div>p{max-width:440px;margin-bottom:30px;font-size:20px;line-height:1.6}.home-course-link{color:#2c6595;border-bottom:1px solid #adbdcc;margin-top:16px;padding:0 0 2px;font-size:15px;display:block}.home-assignment{border-top:1px solid #d9ced5;margin-top:42px;padding-top:18px;font-size:14px}.home-assignment strong{color:#462b41;margin-bottom:5px;font-weight:400;display:block}.home-assignment button{color:#2c6595;padding:0;font-size:14px}.how-to-study{border-top:2px solid #462b41;border-bottom:1px solid #d9ced5;grid-template-columns:1fr 1.3fr;gap:85px;margin:10px 0 35px;padding:34px 0 35px;display:grid}.how-to-study h2{margin:12px 0;font-size:34px;font-weight:400;line-height:1.2}.how-to-study>div>p{max-width:350px;font-size:17px;line-height:1.65}.how-to-study ol{grid-template-columns:1fr 1fr;gap:25px 30px;margin:0;padding:0;list-style:none;display:grid}.how-to-study li{align-items:baseline;gap:16px;display:flex}.how-to-study li>span{color:#8d3954;border-bottom:1px solid #8d3954;min-width:13px;padding-bottom:3px;font-size:14px}.how-to-study h3{margin-bottom:6px;font-size:21px;font-weight:400;line-height:1.25}.how-to-study li p{font-size:15px;line-height:1.5}.home-bottom{grid-template-columns:1.4fr 1fr;gap:85px;margin:45px 0;display:grid}.home-bottom h2{margin:0 0 16px;font-size:29px;font-weight:400}.start-option{text-align:left;border-bottom:1px solid #d9ced5;justify-content:space-between;gap:20px;width:100%;padding:19px 0;display:flex}.start-option h3{margin-bottom:4px;font-size:21px;font-weight:400}.start-option p{font-size:15px}.start-option>span{color:#2c6595;align-self:center;font-size:21px}.teacher-entry{background:#eee5ea;border-left:3px solid #8d3954;align-self:start;padding:29px 32px}.teacher-entry h2{margin:16px 0;font-size:29px}.teacher-entry p{font-size:17px;line-height:1.65}.teacher-entry button{color:#8d3954;border-bottom:1px solid #b48396;margin-top:22px;padding:0;font-size:16px}.curriculum-layout{grid-template-columns:265px minmax(0,1fr);gap:55px;display:grid}.unit-nav{border-top:2px solid #462b41;align-self:start}.unit-nav>button{text-align:left;border-bottom:1px solid #d9ced5;gap:17px;width:100%;padding:20px 12px;font-size:18px;line-height:1.25;display:flex}.unit-nav>button>span{color:#8d3954;padding-top:4px;font-size:12px}.unit-nav small{color:#8e7687;margin-top:9px;font-size:12px;display:block}.unit-nav>button[aria-current]{background:#eee5ea;border-left:3px solid #8d3954;padding-left:9px}.unit-heading{border-bottom:1px solid #462b41;padding-bottom:25px}.unit-heading>span{color:#8d3954;font-size:12px}.unit-heading h2{margin:10px 0;font-size:35px;font-weight:400;line-height:1.2}.unit-heading p{font-size:17px}.learning-lesson{text-align:left;border-bottom:1px solid #d9ced5;align-items:baseline;gap:20px;width:100%;padding:23px 0;display:flex}.lesson-status{color:#a48c9a;min-width:24px;font-size:14px}.lesson-status.done{color:#2c6595}.learning-lesson>div{flex:1}.learning-lesson h3{margin:0 0 7px;font-size:25px;font-weight:400;line-height:1.25}.learning-lesson p{font-size:16px;line-height:1.5}.learning-lesson small{color:#806c7c;white-space:nowrap;font-size:12px}.learning-lesson small span{color:#2c6595;margin-left:20px;font-size:20px}.course-help{margin-top:22px;font-size:14px;line-height:1.6}.lesson-heading{justify-content:space-between;align-items:start;gap:25px;margin:14px 0 35px;display:flex}.lesson-heading>div>span{color:#8d3954;font-size:12px}.lesson-heading h1{margin:12px 0;font-size:44px;font-weight:400;line-height:1.2}.lesson-heading p{font-size:19px}.lesson-heading .btn{margin-top:20px;font-size:13px}.lesson-workspace{grid-template-columns:220px minmax(0,1fr);gap:55px;display:grid}.lesson-outline{align-self:start;position:sticky;top:25px}.lesson-outline nav{border-top:1px solid #462b41}.lesson-outline nav button{text-align:left;border-bottom:1px solid #d9ced5;align-items:baseline;gap:15px;width:100%;padding:16px 10px;font-size:16px;display:flex}.lesson-outline nav button>span{color:#8d3954;font-size:12px}.lesson-outline nav button[aria-current]{color:#245780;background:#e2edf4;border-left:3px solid #2c6595;padding-left:7px}.lesson-prerequisites{margin:28px 10px}.lesson-prerequisites strong{color:#8d3954;font-size:12px;font-weight:400}.lesson-prerequisites button{color:#786373;text-align:left;margin-top:14px;padding:0;font-size:14px;line-height:1.4;display:block}.lesson-stage{background:#fffdf9;border:1px solid #d9ced5;min-width:0;max-width:900px;padding:30px 40px 28px}.stage-label{color:#8d3954;letter-spacing:.02em;margin-bottom:22px;font-size:12px;display:block}.lesson-stage h2{margin:18px 0;font-size:32px;font-weight:400;line-height:1.2}.lesson-stage p{max-width:760px;font-size:19px;line-height:1.75}.stage-task{color:#462b41}.task-facts{background:#f0f4f6;border-left:2px solid #b5cadb;margin:24px 0;padding:18px 22px}.task-facts h3{color:#2c6595;margin:0 0 5px;font-size:14px;font-weight:400}.task-facts h3:not(:first-child){margin-top:15px}.task-facts p{font-size:16px;line-height:1.6}.task-example{grid-template-columns:1fr 1fr;gap:20px;margin:25px 0;display:grid}.task-example h3{margin-bottom:9px;font-size:14px;font-weight:400}.task-example pre{background:#f3eeeb;border:1px solid #e1d6dd;min-height:95px;padding:15px;font-size:14px}.think-prompt{border-top:1px solid #cdbfca;margin-top:30px;padding-top:24px}.think-prompt>span{color:#8d3954;font-size:12px}.think-prompt h3{margin:9px 0 17px;font-size:26px;font-weight:400;line-height:1.3}.think-prompt summary,.approach-brief summary{cursor:pointer;color:#2c6595;padding:12px 0;font-size:16px}.think-prompt details p,.approach-brief details p{background:#edf2f5;padding:15px 20px;font-size:18px}.approach-brief>div{margin:25px 0}.approach-brief>div>span{color:#8d3954;margin-bottom:7px;font-size:13px;display:block}.approach-brief details{border-top:1px solid #b5cadb;border-bottom:1px solid #b5cadb;margin-bottom:30px;padding:3px 0}.lesson-reading{margin:30px 0}.lesson-code{color:#f7edf4;background:#2b1c31;margin-top:25px;padding:25px;font-size:15px;line-height:1.85}.lesson-stage .example-workbench{background:#fbf8f3;margin:28px 0;padding:22px}.lesson-stage .example-workbench p{font-size:17px;line-height:1.65}.lesson-stage .example-workbench h2{font-size:28px}.exercise-work{border-top:1px solid #cdbfca;margin-top:30px;padding-top:15px}.exercise-work>p{font-size:16px}.exercise-work details{margin-top:20px}.exercise-work summary{color:#2c6595;cursor:pointer;font-size:20px;line-height:1.5}.exercise-work details p{background:#edf2f5;margin-top:15px;padding:20px;font-size:18px}.test-reason{padding-bottom:12px}.test-reason h3{color:#8d3954;margin:25px 0 8px;font-size:15px;font-weight:400}.lesson-stage .quiz{background:#f4efeb;border-radius:2px;margin:25px 0;padding:22px}.lesson-stage .quiz h3{font-size:24px}.lesson-stage .quiz button{background:#fffdf9;padding:15px;font-size:17px}.lesson-stage .quiz p{font-size:17px}.apply-next{border-top:1px solid #cdbfca;margin-top:30px;padding-top:25px}.apply-next h3{margin-bottom:8px;font-size:28px;font-weight:400}.apply-next p{margin-bottom:20px;font-size:17px}.lesson-pagination{border-top:1px solid #cdbfca;justify-content:space-between;align-items:center;gap:12px;margin-top:40px;padding-top:20px;display:flex}.lesson-pagination button{color:#2c6595;padding:5px 0;font-size:16px}.lesson-pagination>span{color:#806c7c;font-size:12px}.lesson-reference{color:#786373;border-bottom:1px solid #cdbfca;align-items:center;gap:8px;margin-top:25px;font-size:13px;display:inline-flex}.student-next{background:#e2edf4;border-left:3px solid #2c6595;justify-content:space-between;gap:20px;padding:18px 22px;display:flex}.student-next>span{color:#2c6595;font-size:14px}.student-next button{text-align:right;font-size:18px}.panel,.task-card,.metric,.login-panel,.notice,.table-scroll,.submission,.class-toolbar,.roster-list{box-shadow:none;border-radius:2px}.metric{background:#fffdf9;border-top:2px solid #8d3954}.metric>span,.metric small{font-size:12px}.metric strong{font-size:34px}.field>span{font-size:14px}.field input,.field select,.field textarea{font-size:16px}.panel h2,.section-heading h2{font-size:27px;font-weight:400}.panel-intro,.panel-title p,.help-panel p{font-size:16px}.data-table td{font-size:14px}.data-table th{font-size:12px}.notice p{font-size:14px}.tabs>button{font-size:16px}.task-card h3{font-size:27px}.task-card>p{font-size:16px}.task-card .task-problem{font-size:15px}.problem-grid{border-top:1px solid #462b41;display:block}.problem-card{width:100%;box-shadow:none;text-align:left;background:0 0;border:0;border-bottom:1px solid #d9ced5;border-radius:0;grid-template-columns:155px 1fr 1.6fr 140px;align-items:start;gap:25px;min-height:0;padding:25px 0;display:grid}.problem-card>div{flex-direction:column;gap:6px;display:flex}.problem-card>div small{font-size:12px}.problem-card h3{margin:0;font-size:25px;font-weight:400;line-height:1.3}.problem-card p{min-height:0;margin:0;font-size:15px;line-height:1.6}.problem-card footer{border:0;align-items:center;margin:0;padding:0;font-size:12px}.problem-card:hover{background:#f0e9ec;transform:none}.problem-card .badge{font-size:11px}.filters{margin:25px 0}.track-tabs button{font-size:13px}.search input{font-size:14px}.lab-heading h1{font-size:36px;font-weight:400}.lab-grid{grid-template-columns:.85fr 1.3fr}.statement{background:#fffdf9}.statement p{font-size:16px;line-height:1.75}.statement h2{font-size:28px}.statement h3{font-size:17px}.statement summary{font-size:16px}.statement pre,.io-grid pre,.io-grid textarea{font-size:14px}.editor-top{font-size:13px}.editor-status{font-size:11px}.login-panel h1{font-size:30px;font-weight:400}.login-panel>p{font-size:16px}.login-panel>small{font-size:13px}.segmented button{font-size:14px}.footer{border-top-color:#cdbfca;margin-top:50px;font-size:12px}.footer a,.footer button{font-size:12px}.fineprint{font-size:13px;line-height:1.7}@media (width<=1320px){.side{padding:0 35px}.content,.top{margin-left:35px;margin-right:35px}.home-intro{gap:55px}.home-intro h1{font-size:58px}}@media (width<=1050px){.side nav{gap:16px}.side nav button{font-size:14px}.side{gap:20px}.home-intro{gap:35px}.home-intro h1{font-size:51px}.home-intro>div>p{font-size:18px}.curriculum-layout{grid-template-columns:235px minmax(0,1fr);gap:30px}.lesson-workspace{grid-template-columns:190px minmax(0,1fr);gap:28px}.lesson-stage{padding:26px}.problem-card{grid-template-columns:105px 1fr 1.5fr;gap:20px}.problem-card footer{grid-column:2/4}.how-to-study,.home-bottom{gap:40px}}@media (width<=950px){.side,.side.open{width:100%;height:73px;box-shadow:none;padding:0 24px;display:flex;position:relative;inset:auto}.side nav{display:none}.side.open nav{background:#fffdf9;border-bottom:1px solid #cdbfca;flex-direction:column;align-items:stretch;gap:0;height:auto;padding:15px 24px;display:flex;position:absolute;top:69px;left:0;right:0;box-shadow:0 10px 20px #462b4112}.side nav button{border-bottom:1px solid #e5dae1;width:100%;height:auto;padding:12px 0;font-size:17px}.side.open .close-menu{color:#462b41;display:block;position:static}.top{justify-content:space-between;height:53px}.menu-button{color:#462b41;padding:0;display:flex}.page-name{display:none}.top-actions{margin-left:auto}.content,.top{margin-left:24px;margin-right:24px}.home-intro{grid-template-columns:1fr 1fr;gap:30px}.home-intro h1{letter-spacing:-1px;font-size:46px}.home-intro>div:first-child{padding-top:15px}.how-to-study{grid-template-columns:1fr;gap:28px}.how-to-study>div>p{max-width:650px}.curriculum-layout{grid-template-columns:1fr}.unit-nav{grid-template-columns:repeat(3,1fr);display:grid}.unit-nav>button{border-right:1px solid #d9ced5;gap:10px;padding:15px 10px;font-size:16px}.unit-nav>button[aria-current]{padding-left:7px}.lesson-workspace{grid-template-columns:1fr}.lesson-outline{position:static}.lesson-outline nav{display:flex;overflow:auto}.lesson-outline nav button{border-right:1px solid #d9ced5;min-width:150px;font-size:14px}.lesson-prerequisites{flex-wrap:wrap;align-items:baseline;gap:16px;margin:16px 0;display:flex}.lesson-prerequisites button{margin:0}.lesson-stage{max-width:none}.lesson-heading h1{font-size:38px}.lab-grid{grid-template-columns:1fr}.problem-card{grid-template-columns:100px 1fr 1.2fr}}@media (width<=650px){.content,.top{margin-left:19px;margin-right:19px}.content{padding-top:23px}.side,.side.open{height:68px;padding:0 19px}.side.open nav{top:64px}.brand-logo{width:43px;height:43px}.brand>div,.brand small{font-size:22px}.top-actions{gap:13px}.share-hub span{display:none}.language{gap:9px}.language button{font-size:12px}.signin{padding:5px 8px;font-size:12px}.home-intro{grid-template-columns:1fr;gap:35px;padding-top:4px}.home-intro h1{white-space:normal;max-width:350px;margin:19px 0 23px;font-size:49px;line-height:1.03}.home-intro>div>p{font-size:18px;line-height:1.6}.home-assignment{margin-top:27px}.home-intro>div:first-child{padding-top:0}.how-to-study{padding-top:25px}.how-to-study h2{font-size:31px}.how-to-study ol{grid-template-columns:1fr;gap:22px}.how-to-study li{gap:20px}.how-to-study li p{font-size:16px}.home-bottom{grid-template-columns:1fr;gap:32px;margin-top:34px}.teacher-entry{padding:24px}.heading h1{font-size:34px}.heading p{font-size:17px}.unit-nav{grid-template-columns:repeat(2,1fr)}.unit-nav>button{align-items:baseline;min-height:103px;font-size:15px}.unit-heading h2{font-size:30px}.learning-lesson{gap:12px;padding:21px 0}.learning-lesson h3{font-size:23px}.learning-lesson p{font-size:15px}.learning-lesson small{font-size:11px}.learning-lesson small span{display:none}.lesson-heading{margin-bottom:24px;display:block}.lesson-heading h1{font-size:35px}.lesson-heading p{font-size:18px}.lesson-heading .btn{margin-top:17px}.lesson-stage{padding:23px 20px}.lesson-stage h2{font-size:28px}.lesson-stage p{font-size:18px;line-height:1.7}.task-example{gap:10px}.task-example pre{padding:12px;font-size:12px}.task-facts{padding:15px}.task-facts p{font-size:15px}.lesson-stage .example-workbench{margin-left:-8px;margin-right:-8px;padding:14px}.lesson-code{padding:17px;font-size:12px}.lesson-pagination>span{display:none}.lesson-pagination button{font-size:15px}.lesson-stage .quiz{padding:16px}.lesson-stage .quiz h3{font-size:23px}.lesson-stage .quiz button{font-size:16px}.problem-card{grid-template-columns:1fr;gap:11px;padding:24px 0;display:grid}.problem-card>div{flex-direction:row;align-items:center;gap:12px}.problem-card footer{grid-column:auto}.problem-card h3{font-size:27px}.problem-card p{font-size:16px}.problem-card footer{justify-content:space-between}.scope-grid{gap:10px}.metric{padding:16px}.metric>span,.metric small{font-size:11px}.data-table td{font-size:12px}.class-toolbar{padding:17px}.tabs>button{font-size:14px}.field input,.field select,.field textarea{font-size:16px}.form-footer>span{font-size:13px}.student-next{display:block}.student-next button{text-align:left;margin-top:6px;display:block}.statement p{font-size:16px}.lab-heading h1{font-size:31px}.footer{gap:15px}.footer a,.footer button{font-size:12px}}.topic-hint-toggle{color:#725665;align-items:center;gap:9px;margin:0 0 18px;font-size:14px;display:flex}.topic-hint-toggle input{accent-color:#2c6595;width:16px;height:16px;padding:0}.algorithm-diagram{max-height:380px}@media (prefers-reduced-motion:no-preference){.algorithm-diagram rect,.algorithm-diagram circle{transition:fill .18s,stroke .18s}}.brand-mark{perspective:180px;transform-origin:50% 65%;flex-shrink:0;width:54px;height:54px;display:block;position:relative;background:0 0!important;border-radius:0!important}.brand .brand-mark{color:inherit;background:0 0;width:54px;height:54px;display:block}.brand-mark .brand-logo{object-fit:contain;width:100%;height:100%;display:block}.brand-glint{pointer-events:none;opacity:0;background:linear-gradient(110deg,#0000 30%,#fff9 47%,#ffffffc9 50%,#0000 67%) 180% 0/280% 100%;position:absolute;inset:0;-webkit-mask:url(/brand/usaco-hub-logo.svg) 50%/contain no-repeat;mask:url(/brand/usaco-hub-logo.svg) 50%/contain no-repeat}@media (prefers-reduced-motion:no-preference){.brand-mark{transition:transform .35s cubic-bezier(.2,.8,.3,1),filter .35s}.brand:hover .brand-mark,.brand:focus-visible .brand-mark{filter:drop-shadow(3px 5px 2px #462b411c);transform:perspective(180px)rotateY(-12deg)rotateX(6deg)translateY(-2px)}.brand:hover .brand-glint,.brand:focus-visible .brand-glint{animation:.85s ease-out letter-light}@keyframes letter-light{0%{opacity:0;background-position:180% 0}15%{opacity:.8}80%{opacity:.6}to{opacity:0;background-position:-80% 0}}}@media (width<=650px){.brand .brand-mark{width:44px;height:44px}}@media (prefers-reduced-motion:reduce){.brand-mark,.brand-glint{transition:none!important;animation:none!important;transform:none!important}.brand:hover .brand-mark{filter:brightness(1.12)}}.side{color:#fff8ef;background:#38213d;border-top:0;border-bottom:3px solid #9c4560;gap:30px;height:91px;box-shadow:0 5px #e8dce2}.brand>div,.brand small{color:#fff8ef}.brand>div{gap:8px;font-size:25px}.brand small{color:#e7c1d1;font-size:25px}.brand .brand-mark{border:1px solid #d8c1cf;width:58px;height:58px;padding:6px;box-shadow:4px 4px #201326;background:#fff8ef!important;border-radius:1px!important}.brand-glint{inset:6px}.side nav{gap:24px}.side nav button{color:#e2cadb;border-bottom:0;font-size:15px;position:relative}.side nav button:after{content:"";transform-origin:0;background:#8cc0df;height:2px;position:absolute;bottom:19px;left:0;right:0;transform:scaleX(0)}.side nav button.selected,.side nav button:hover{color:#fff8ef;background:0 0;border-bottom:0}.side nav button.selected:after{transform:scaleX(1)}.top{height:58px}.content{padding-top:22px}.top,.content{max-width:1240px}.home-intro{grid-template-columns:.9fr 1.1fr;align-items:center;gap:68px;padding:29px 0 40px;position:relative}.home-intro .home-opening{border-left:2px solid #d2b6c4;padding:12px 0 22px 30px}.home-intro h1{letter-spacing:-2.8px;white-space:pre-line;max-width:530px;margin:26px 0;font-size:76px;line-height:.98}.home-intro .home-opening>p{color:#634558;max-width:410px;margin-bottom:30px;font-size:21px;line-height:1.55}.home-opening .course-label{color:#8d3954;font-size:13px}.home-opening .btn{justify-content:space-between;min-width:225px;padding:13px 21px;font-size:17px}.home-course-link{margin-top:16px;font-size:16px}.home-assignment{max-width:360px;margin-top:32px;padding-top:17px}.home-assignment strong,.home-assignment button{font-size:15px}.home-example{min-width:0;padding-left:19px;position:relative}.home-example:before{content:"";z-index:-1;border:1px solid #a8c3d6;position:absolute;inset:43px -10px -12px 9px;transform:rotate(1deg)}.example-tab{color:#fffdf9;background:#2c6595;justify-content:space-between;align-items:center;margin-right:45px;padding:9px 18px;font-size:13px;display:flex;position:relative}.example-tab:after{content:"";border-top:35px solid #0000;border-left:25px solid #2c6595;position:absolute;top:0;right:-25px}.home-example .example-compact{border-top:0;padding:17px 24px 23px;box-shadow:8px 8px #e7d9e1}.home-example .example-caption{display:none}.home-example .example-compact h2{margin-top:8px;margin-bottom:17px;font-size:29px}.prefix-playback{background:#f0f5f8;border-top:1px solid #c6d6e0;border-bottom:1px solid #c6d6e0;margin:14px 0;padding:10px 12px}.prefix-playback>div{justify-content:space-between;align-items:center;gap:10px;display:flex}.prefix-playback button{color:#245780;align-items:center;gap:8px;padding:3px 0;font-size:14px;display:inline-flex}.prefix-playback button:disabled{opacity:.4}.prefix-playback button:first-child>span{font-size:11px}.prefix-playback output{color:#5a5361;border-top:1px solid #d5e0e8;min-height:23px;margin-top:7px;padding-top:7px;font-size:14px;display:block}.home-example .algorithm-diagram{margin-top:6px;margin-bottom:0}.home-example .prediction{padding-top:17px}.home-example .prediction h3{font-size:21px}.home-example .example-adjust{padding:0 0 14px}.course-ledger{background:#f0e7ec;border-top:2px solid #462b41;border-bottom:1px solid #ad93a3;grid-template-columns:1.15fr 1.15fr 1.25fr .85fr;align-items:stretch;margin:25px 0 61px;display:grid}.course-ledger>div{border-right:1px solid #d4c2cd;align-items:center;gap:14px;padding:21px 23px;display:flex}.course-ledger strong{color:#8d3954;font-size:33px;font-weight:400;line-height:1}.course-ledger span{color:#655261;max-width:140px;font-size:14px;line-height:1.3}.course-ledger>button{text-align:left;color:#2c6595;justify-content:space-between;align-items:center;gap:14px;padding:20px 23px;font-size:16px;display:flex}.course-ledger>button span{color:inherit;font-size:25px}.procedure-heading{border-bottom:1px solid #bca6b3;align-items:baseline;gap:24px;padding-bottom:24px;display:flex}.section-number{color:#8d3954;border-top:2px solid #8d3954;padding-top:10px;font-size:19px}.procedure-heading h2{margin:0 0 10px;font-size:43px;font-weight:400;line-height:1.2}.procedure-heading p{margin:0;font-size:18px;line-height:1.55}.procedure-layout{grid-template-columns:minmax(0,1.3fr) minmax(320px,.85fr);align-items:start;gap:66px;padding-top:30px;display:grid}.procedure-list{border-bottom:1px solid #cdbcc7;margin:0;padding:0;list-style:none}.procedure-list li{border-top:1px solid #d9ced5;align-items:baseline;gap:20px;padding:18px 19px 20px 0;scroll-margin-top:20px;display:flex;position:relative}.procedure-list li:first-child{border-top:0}.procedure-number{color:#8d3954;text-align:right;flex:0 0 31px;font-size:23px;line-height:1.4;display:block}.procedure-list li>div{border-left:2px solid #0000;padding-left:13px}.procedure-list li.is-current>div{border-left-color:#2c6595}.procedure-list li.is-current{background:#edf2f5}.procedure-list button{text-align:left;color:#462b41;padding:0;font-size:22px;line-height:1.3}.procedure-list button:hover{color:#2c6595}.procedure-list p{max-width:560px;margin:8px 0 0;font-size:17px;line-height:1.65}.procedure-figure{background:#fffdf9;border:1px solid #c6b5c1;margin:0;padding:19px 17px 0;position:sticky;top:25px;box-shadow:6px 6px #e6dce2}.procedure-figure figcaption{color:#685261;border-bottom:1px solid #d9ced5;justify-content:space-between;gap:12px;padding-bottom:13px;font-size:13px;display:flex}.procedure-figure figcaption span:last-child{color:#2c6595}.procedure-figure svg{width:100%;max-height:565px;margin:8px auto 0;font-family:Computer Modern Serif;display:block;overflow:visible}.procedure-track{stroke:#d4c4ce;stroke-width:1.5px;fill:none}.procedure-progress{stroke:#2c6595;stroke-width:2px;fill:none}.flow-node rect,.flow-node path{fill:#fffdf9;stroke:#b59dac;stroke-width:1px}.flow-node text{fill:#6d5365;font-size:15px}.flow-visited rect,.flow-visited path{fill:#eef3f6;stroke:#a2bdd1}.flow-current rect,.flow-current path{fill:#2c6595;stroke:#2c6595}.flow-current text{fill:#fffdf9}.flow-indicator{fill:#8d3954;transform-box:fill-box;transform-origin:50%}.procedure-return{fill:none;stroke:#d5bcc9;stroke-width:1px;color:#b389a1}.procedure-return.return-active{stroke:#8d3954;stroke-width:2px;color:#8d3954}.return-label{fill:#8d3954;font-size:12px}.pass-label{fill:#2c6595;font-size:12px}.procedure-controls{border-top:1px solid #d9ced5;padding-top:14px}.procedure-next{color:#245780;background:#e2edf4;justify-content:space-between;align-items:center;gap:15px;width:100%;padding:9px 13px;font-size:16px;display:flex}.procedure-controls>div{justify-content:space-between;gap:12px;padding-top:13px;display:flex}.procedure-controls>div button{color:#8d3954;text-align:left;border-bottom:1px solid #cfb7c4;padding:0;font-size:12px}.procedure-current{background:#f2e9ee;min-height:41px;margin:14px -17px 0;padding:10px 17px;color:#6f4d62!important;font-size:13px!important}.home-bottom{border-top:2px solid #462b41;margin-top:65px;padding-top:35px}.home-bottom h2{margin-top:13px;font-size:34px}.teacher-entry{color:#fff8ef;background:#38213d;border-left:4px solid #679dc2;padding:28px 32px;position:relative}.teacher-entry h2,.teacher-entry .course-label{color:#fff8ef}.teacher-entry .course-label{color:#dcb4c9;font-size:13px}.teacher-entry p{color:#e1cad8}.teacher-entry button{color:#b8d8ed;border-color:#7695af;margin-top:18px;font-size:16px}.learning-lesson{padding-left:10px;padding-right:12px;position:relative}.learning-lesson:before{content:"";transform-origin:top;background:#2c6595;width:2px;position:absolute;top:18px;bottom:18px;left:0;transform:scaleY(0)}.learning-lesson:hover{background:#eee7ed}.learning-lesson:hover:before{transform:scaleY(1)}.unit-heading{background:#eaf0f4;border-top:3px solid #2c6595;border-bottom:1px solid #a8bfce;padding:24px 26px}.unit-nav>button[aria-current]{color:#fff8ef;background:#38213d;border-left-color:#79accf}.unit-nav>button[aria-current]>span,.unit-nav>button[aria-current] small{color:#d2b8ca}.btn>span:last-child,.start-option>span,.home-course-link,.example-open,.procedure-next>span{display:inline-block}:focus-visible{outline-offset:5px;outline:2px solid #2c6595}.side :focus-visible{outline-color:#acd6ed}.brand:focus-visible{outline-offset:8px}@media (prefers-reduced-motion:no-preference){.page-enter{animation:.36s ease-out both page-open}.surface-enter{animation:.25s ease-out both page-open}.home-opening{animation:.5s ease-out both page-open}.home-example{animation:.65s cubic-bezier(.2,.7,.2,1) both example-open}.side nav button:after{transition:transform .25s}.side nav button:hover:after{transform:scaleX(1)}.reveal-ready{opacity:0;transition:opacity .6s,transform .6s cubic-bezier(.2,.8,.3,1);transform:translateY(22px)}.reveal-ready.is-visible{opacity:1;transform:none}.btn,.start-option,.problem-card,.learning-lesson,.range-options button,.prediction-choices button,.procedure-list li,.procedure-next{transition:background .2s,color .2s,border-color .2s,box-shadow .2s}.btn>span:last-child,.start-option>span,.procedure-next>span,.learning-lesson small span{transition:transform .25s}.btn:hover>span:last-child,.start-option:hover>span,.procedure-next:hover>span,.learning-lesson:hover small span{transform:translate(5px)}.learning-lesson:before{transition:transform .3s}.flow-node rect,.flow-node path{transition:fill .3s,stroke .3s}.flow-indicator{animation:.6s ease-out node-arrival}.procedure-progress{transition:d .4s}.return-active{stroke-dasharray:850;stroke-dashoffset:850px;animation:.8s ease-out forwards follow-return}.is-playing .prefix-source rect{animation:.8s ease-out source-pulse}.algorithm-diagram rect{transition:fill .28s,stroke .28s}.prefix-playback output{animation:.25s ease-out page-open}details[open]>p,details[open]>.example-result{animation:.22s ease-out page-open}@keyframes page-open{0%{opacity:0;transform:translateY(9px)}to{opacity:1;transform:none}}@keyframes example-open{0%{opacity:0;transform:translateY(14px)rotate(.6deg)}to{opacity:1;transform:none}}@keyframes node-arrival{0%{opacity:.2;transform:scale(2.4)}to{opacity:1;transform:scale(1)}}@keyframes follow-return{to{stroke-dashoffset:0}}@keyframes source-pulse{0%{stroke-width:4px;fill:#b9d5e8}to{stroke-width:2px;fill:#e2edf4}}}@media (width<=1320px){.home-intro{gap:42px}.home-intro h1{font-size:69px}.side nav{gap:21px}.course-ledger>div{padding:20px 17px}.course-ledger span{font-size:13px}.procedure-layout{gap:42px}}@media (width<=1050px){.side nav{gap:16px}.side nav button{font-size:14px}.home-intro h1{font-size:60px}.home-intro .home-opening{padding-left:21px}.home-intro .home-opening>p{font-size:19px}.course-ledger{grid-template-columns:1fr 1fr 1.2fr}.course-ledger>button{border-top:1px solid #d4c2cd;grid-column:1/-1;padding:12px 18px}.course-ledger span{max-width:none}.procedure-layout{grid-template-columns:minmax(0,1fr) 330px;gap:30px}.procedure-list p{font-size:16px}}@media (width<=950px){.side,.side.open{background:#38213d;height:82px}.side.open nav{z-index:20;background:#38213d;border-color:#96728b;padding:18px 24px;top:79px}.side nav button{color:#e2cadb;border-color:#67465f}.side nav button:after{width:40px;bottom:5px;right:auto}.side.open .close-menu{color:#fff8ef}.brand .brand-mark{width:52px;height:52px}.home-intro{gap:27px}.home-intro h1{font-size:54px}.home-example{padding-left:0}.home-example .example-compact{padding:16px 18px}.home-example .example-compact h2{font-size:26px}.home-example .prediction h3{font-size:19px}.home-intro .home-opening>p{font-size:18px}.procedure-heading h2{font-size:38px}.procedure-layout{grid-template-columns:minmax(0,1fr) 300px;gap:25px}.procedure-list li{gap:8px;padding-right:10px}.procedure-list button{font-size:21px}.procedure-figure{padding:14px 12px 0}.procedure-current{margin-left:-12px;margin-right:-12px}.procedure-controls>div{display:block}.procedure-controls>div button{margin:9px 0;display:block}.course-ledger>div{gap:10px;padding:19px 13px}.course-ledger strong{font-size:29px}}@media (width<=700px){.home-intro{grid-template-columns:1fr;gap:35px;padding-top:12px}.home-intro .home-opening{padding-left:23px}.home-intro h1{white-space:pre-line;max-width:none;margin:23px 0;font-size:64px;line-height:1}.home-intro .home-opening>p{max-width:440px;font-size:19px}.home-example{justify-self:center;width:100%;max-width:550px}.home-example:before{right:-4px}.home-example .example-compact{padding:19px 21px 24px;box-shadow:5px 5px #e7d9e1}.home-example .prediction h3{font-size:22px}.course-ledger{grid-template-columns:1fr 1fr;margin-top:22px;margin-bottom:42px}.course-ledger>div{border-bottom:1px solid #d4c2cd;flex-direction:column;align-items:start;gap:8px;padding:17px}.course-ledger>div:nth-child(3){border-bottom:0}.course-ledger>button{border-top:0;grid-column:auto;font-size:16px}.course-ledger span{font-size:14px}.course-ledger strong{font-size:32px}.procedure-heading{gap:15px}.procedure-heading h2{font-size:34px}.procedure-heading p{font-size:17px}.procedure-layout{grid-template-columns:1fr;gap:28px;padding-top:14px}.procedure-list li{gap:12px;padding:19px 12px 21px 0}.procedure-list button{font-size:22px}.procedure-list p{font-size:17px}.procedure-figure{justify-self:center;width:100%;max-width:425px;padding:19px 17px 0;position:static}.procedure-figure svg{max-height:570px}.procedure-controls>div{display:flex}.procedure-controls>div button{margin:0;font-size:12px}.procedure-current{margin-left:-17px;margin-right:-17px}.home-bottom{gap:30px;margin-top:48px}.home-bottom h2{font-size:31px}.teacher-entry{padding:26px}.side,.side.open{height:76px}.side.open nav{top:73px}.brand .brand-mark{width:47px;height:47px;padding:5px}.brand-glint{inset:5px}.brand>div,.brand small{font-size:24px}.top{height:54px}.home-intro .btn{font-size:16px}.content{padding-top:13px}}@media (prefers-reduced-motion:reduce){.page-enter,.surface-enter,.home-opening,.home-example,.flow-indicator,.return-active,.prefix-source rect{animation:none!important}.reveal-ready{opacity:1;transform:none}.procedure-progress,.flow-node rect,.flow-node path,.side nav button:after{transition:none}.procedure-return.return-active{stroke-dasharray:none;stroke-dashoffset:0}}.home-course-link{width:max-content;max-width:100%;display:block}.home-intro{align-items:start}.home-intro .home-opening{padding-top:44px}@media (width<=700px){.home-intro .home-opening{padding-top:12px}}
