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0;accent-color:var(--green)}.quiz-option:has(input:checked){border-color:#81a56d;background:#eff4e7}.quiz-option.correct-answer{border-color:#81a56d;background:#eaf3df}.quiz-option.wrong-answer{border-color:#d2a07b;background:#fff0e7}.quiz-explanation{clear:both;padding-top:13px;color:var(--green);font-size:12px}.quiz-actions{display:flex;gap:12px;margin-top:22px}.quiz-result{background:#e8f0df;border-left:3px solid var(--green);padding:24px 28px;margin:25px 0}.quiz-result strong{font:38px var(--display);color:var(--green);margin-right:20px}.quiz-result span{font-size:13px}.storage-footer{border-top:1px solid var(--line);margin-top:35px;padding:20px 0;display:flex;justify-content:space-between;gap:22px;align-items:center}.storage-footer p{font-size:10px;color:var(--muted);margin:0}.text-button{text-decoration:underline;text-underline-offset:3px;white-space:nowrap;font-size:11px;color:var(--muted)}dialog{border:1px solid 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@keyframes arrive{from{opacity:.2;transform:translateY(6px)}to{opacity:1;transform:none}}@media(min-width:1600px){.lab-workspace{grid-template-columns:minmax(0,1fr) 350px}#code-lines li{font-size:12px}.canvas-scroll{min-height:300px}.frame-explanation p{font-size:14px}.frame-explanation h2{font-size:18px}.playback .outline-button,.playback .primary-button{font-size:12px}}
@media(max-width:1200px){.sidebar{width:198px;padding:28px 17px}.main-shell{margin-left:198px;width:calc(100% - 198px)}.topbar{padding:0 25px}main{padding:27px 25px 0}.lab-workspace{grid-template-columns:minmax(0,1fr) 265px}.page-heading h1{font-size:33px}.playback{flex-wrap:wrap}.speed-label{margin-left:auto}.canvas-legend .muted{margin-left:0;font-size:8px}.workspace-footer{flex-wrap:wrap}.code-heading{padding:18px 13px}#code-lines li{font-size:9px}.route-row{grid-template-columns:44px 125px 1fr;gap:16px}.route-row>button{grid-column:3;justify-self:start}.page-heading>.text-link{font-size:10px}}
@media(max-width:1000px){.lab-workspace{grid-template-columns:1fr}.code-panel{display:grid;grid-template-columns:1fr 220px}.code-heading{grid-column:1/-1}.code-panel #code-lines{max-height:280px;font-size:11px;grid-column:1;grid-row:2/4}.code-panel .code-note{grid-column:2;grid-row:2;border:0;padding:15px}.code-panel .teaching-prompt{grid-column:2;grid-row:3}#code-lines li{font-size:12px}.canvas-scroll{min-height:240px}.canvas-scroll svg{min-width:610px}.workspace-footer{flex-wrap:nowrap}.page-heading{align-items:flex-start}.page-heading>.text-link{margin-top:5px}.projector .lab-workspace{grid-template-columns:1fr}.projector .code-panel #code-lines{font-size:12px}.top-actions{gap:10px}.breadcrumbs{gap:8px}.exercise-item{grid-template-columns:150px 1fr;gap:20px}}
@media(max-width:760px){.app-shell{display:block}.sidebar{position:relative;width:100%;padding:18px 20px 0;height:auto;overflow:visible}.brand{font-size:20px}.brand small{font-size:8px}.brand svg{width:28px}.course-label,.course-name,.sidebar-bottom{display:none}.main-nav{flex-direction:row;overflow:auto;gap:4px;margin:18px -6px 0;padding-bottom:8px}.main-nav button{padding:10px;gap:7px;font-size:12px;border-radius:5px;flex-shrink:0}.nav-trail{display:none}.nav-symbol{font-size:9px}.main-shell{margin:0;width:100%}.topbar{height:57px;padding:0 20px}.breadcrumbs{font-size:10px}.breadcrumbs strong{display:none}.top-actions .quiet-button{font-size:10px}.top-actions .outline-button{font-size:10px;min-height:30px;padding:5px 8px}.top-actions{gap:12px}main{padding:25px 20px 0}.page-heading{gap:15px;margin-bottom:25px;flex-wrap:wrap}.page-heading h1{font-size:29px;letter-spacing:0}.page-heading p{font-size:12px}.page-heading>.text-link{margin-top:0;font-size:11px}.eyebrow{font-size:9px;letter-spacing:1.6px}.algorithm-tabs button{font-size:13px;padding:9px 6px 12px}.algorithm-tabs button small{font-size:9px}.preset-row{flex-wrap:wrap;margin-bottom:17px}.preset-row>div{gap:10px}.data-toolbar{gap:8px;flex-wrap:wrap}.data-toolbar input{font-size:12px;padding:8px 9px}.data-toolbar .primary-button{min-width:82px;padding:8px 10px}.target-field{width:76px}.target-field label{font-size:10px}.lab-workspace{border-radius:9px}.canvas-heading{padding:16px 14px 0}.canvas-scroll svg{min-width:600px}.canvas-scroll{min-height:210px}.canvas-legend{padding:8px 14px 13px;gap:10px}.pointer-values{padding:11px 14px;gap:12px;font-size:9px}.frame-explanation{padding:16px 14px;min-height:125px}.frame-explanation h2{font-size:16px}.frame-explanation p{font-size:12px}.playback{padding:0 12px;gap:8px}.step-controls{gap:5px;flex-wrap:wrap}.step-controls .outline-button,.step-controls .primary-button{font-size:11px;padding:7px 9px}.workspace-footer{padding:8px 14px 17px;flex-wrap:wrap}.code-panel{grid-template-columns:1fr}.code-panel #code-lines{grid-column:auto;grid-row:auto;min-height:190px;max-height:280px}.code-panel .code-note,.code-panel .teaching-prompt{grid-column:auto;grid-row:auto}.code-panel .code-note{padding:10px 16px}.code-panel .teaching-prompt{margin:0 16px 17px}.code-heading{grid-column:auto}#code-lines li{font-size:11px}.page-footer{padding:25px 20px}.page-footer>span:last-child{display:none}.route-intro{display:block}.route-intro strong{display:block;margin-bottom:7px}.route-intro p{font-size:12px}.route-row{grid-template-columns:33px 1fr;gap:10px;padding:22px 0}.route-number{font-size:27px;align-self:start}.route-copy{grid-column:2}.route-row>button{grid-column:2}.route-time{display:flex;gap:14px;align-items:baseline}.route-time strong{font-size:16px}.homework-strip{grid-template-columns:1fr;gap:20px}.duration-stamp{font-size:42px}.exercise-item{grid-template-columns:1fr;gap:12px}.exercise-heading h2{display:inline;margin-left:10px;font-size:18px}.exercise-heading p{margin:8px 0}.exercise-code{font-size:11px;padding:13px}.answer-options{grid-template-columns:1fr}.answer-options button{font-size:12px}.check-notice{display:block;font-size:11px}.check-notice strong{display:block;margin-bottom:6px}.quiz-options{grid-template-columns:1fr}.quiz-item legend{font-size:15px}.quiz-result{padding:20px}.quiz-result strong{font-size:29px}.quiz-result span{display:block;margin-top:9px;font-size:12px}.storage-footer{align-items:flex-start;flex-direction:column;gap:10px}.projector .page-heading h1{font-size:30px}.projector .frame-explanation p{font-size:14px}.projector .canvas-scroll{min-height:225px}.projector #code-lines li{font-size:11px}.projector .topbar{height:56px}.projector .breadcrumbs strong{display:inline;font-size:11px}.test-actions{flex-wrap:wrap}.dialog-header h2{font-size:23px}dialog{padding:22px}}

/* Keep the graph and playback controls together on a classroom projector. */
@media(min-width:1001px){
.projector .topbar{height:48px;padding:0 24px}
.projector main{padding:12px 24px 0}
.projector #view-lab .page-heading{margin-bottom:9px;align-items:center}
.projector #view-lab .page-heading h1{font-size:28px}
.projector #view-lab .page-heading .eyebrow,.projector #view-lab .page-heading p{display:none}
.projector .algorithm-tabs{margin-bottom:10px}
.projector .algorithm-tabs button{padding:6px 12px 9px;font-size:16px}
.projector .algorithm-tabs button:first-child{padding-left:0}
.projector .algorithm-tabs button small{display:inline;margin-left:12px;font-size:10px}
.projector .data-field,.projector .target-field{display:flex;align-items:center;gap:10px}
.projector .data-toolbar label{margin:0;white-space:nowrap}
.projector .target-field{width:190px}
.projector .data-toolbar input,.projector .data-toolbar .primary-button{height:36px;min-height:36px}
.projector .preset-row{margin:5px 0 10px}
.projector .lab-workspace{grid-template-columns:minmax(0,1fr) 350px}
.projector .canvas-heading{padding:10px 18px 0}
.projector .canvas-scroll{min-height:0}
.projector .canvas-scroll svg{height:190px;min-width:620px}
.projector .canvas-legend{padding:0 18px 8px;font-size:10px}
.projector .canvas-legend .muted{font-size:9px}
.projector .pointer-values{padding:8px 18px;font-size:12px}
.projector .frame-explanation{padding:10px 18px;min-height:95px}
.projector .frame-explanation h2{font-size:19px}
.projector .frame-explanation p{font-size:15px;line-height:1.65}
.projector .frame-explanation>span{margin-bottom:2px}
.projector .playback{flex-wrap:nowrap}
.projector .step-range{margin-top:12px;margin-bottom:6px}
.projector .workspace-footer{padding:5px 18px 11px}
.projector .code-heading{padding:12px 16px}
.projector #code-lines{min-height:0;max-height:275px;padding:9px 0}
.projector #code-lines li{font-size:12px;line-height:28px;min-height:28px}
.projector .code-note{padding:8px 16px}
.projector .teaching-prompt{margin:0 16px 12px;padding-top:9px}
.projector .teaching-prompt p{font-size:13px;margin-top:4px;margin-bottom:5px}
.projector .lab-bottom-note{padding:9px 0;font-size:11px}
.projector .page-footer{display:none}
}

@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media print{.sidebar,.topbar,.page-footer,.playback,.data-toolbar,.preset-row,.algorithm-tabs,.code-panel,.page-heading>.text-link,.quiz-actions,.storage-footer,.test-actions,button{display:none!important}.main-shell{margin:0;width:100%}main{padding:0}.view[hidden]{display:none!important}.lab-workspace{display:block;border:0}.canvas-scroll{overflow:visible}.canvas-scroll svg{min-width:0}.page-heading h1{font-size:26pt}.test-table{min-width:0}.test-table td{padding:9px 7px}.route-row,.exercise-item,.quiz-item,tr{break-inside:avoid}body{background:white;font-size:11pt;color:black}}

.position-label{display:block;font-size:10px;color:var(--muted);margin:10px 0 5px;white-space:nowrap}

.canvas-swipe-hint{display:none}@media(max-width:760px){.canvas-swipe-hint{display:block;margin:8px 14px 0;font-size:10px;color:var(--muted)}}