:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}#root{text-align:center;border-inline:1px solid var(--border);box-sizing:border-box;flex-direction:column;width:1126px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}body{margin:0}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}:root{color:#e8edf7;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;background:#0b1020;font-family:Inter,Segoe UI,Arial,sans-serif}*{box-sizing:border-box}body{background:radial-gradient(at 50% 0,#172442 0%,#0000 55%),#0b1020;min-width:320px;min-height:100vh;margin:0}button,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.3}.app{max-width:900px;margin:0 auto;padding:0 28px}.topbar{border-bottom:1px solid #263047;justify-content:space-between;align-items:center;height:76px;display:flex}.logo{color:#fff;letter-spacing:-1px;font-size:22px;font-weight:800;text-decoration:none}.logo span{color:#7c9cff}.top-actions,.block-actions,.add-actions{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.save-status{color:#8f9cb5;font-size:12px}.button,.add-actions button{color:#e8edf7;background:#18233a;border:1px solid #36435d;border-radius:9px;padding:10px 14px}.button.primary{color:#10182d;background:#7795ff;border-color:#7795ff;font-weight:700}.page-heading{padding:48px 0 30px}.eyebrow{color:#92aaff;letter-spacing:2px;font-size:11px;font-weight:800}.page-heading h1{letter-spacing:-1.5px;margin:12px 0;font-size:clamp(30px,6vw,44px)}.page-heading p,.editor-panel p{color:#98a5bd;line-height:1.7}.tabs{border-bottom:1px solid #263047;gap:22px;display:flex;overflow-x:auto}.tab{white-space:nowrap;color:inherit;font-size:14px;font:inherit;cursor:pointer;background:0 0;border:0;padding:15px 0}.tab:focus-visible{outline-offset:4px;outline:2px solid #819cff}.tab.active{color:#a7bbff;border-bottom:2px solid #819cff}.tab.muted{color:#697791}.editor-panel,.edit-card{background:#141d31;border:1px solid #34415b;border-radius:14px;padding:20px}.editor-panel{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px;margin-top:26px;display:flex}.editor-panel p{margin-bottom:0;font-size:13px}.add-actions button{padding:9px 11px;font-size:13px}.theory{padding:28px 0}.theory-block{margin-bottom:20px}.theory-title{letter-spacing:-.8px;margin:10px 0 20px;font-size:32px}.theory-block h3{margin:28px 0 14px;font-size:22px}.theory-text{color:#c3cde0;white-space:pre-wrap;font-size:16px;line-height:1.9}.theory-list{color:#c3cde0;background:#111a2c;border:1px solid #283650;border-radius:12px;padding:20px 20px 20px 42px;line-height:2}.theory-list li{padding-left:5px}.edit-card{margin:16px 0}.block-toolbar{color:#aab9d5;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;font-size:12px;display:flex}.block-actions button{color:#e8edf7;background:#202c43;border:1px solid #3a4964;border-radius:6px;padding:6px 10px}.block-actions .delete-button{color:#faa}.edit-card textarea{resize:vertical;color:#edf2ff;background:#0c1425;border:1px solid #3a4964;border-radius:9px;outline:none;width:100%;min-height:60px;padding:13px;line-height:1.7}.edit-card textarea:focus{border-color:#819cff}.edit-card small{color:#8290aa;margin-top:9px;display:block}footer{color:#a9b8d5;border-top:1px solid #263047;padding:25px 0 40px;font-size:13px;font-weight:700}footer span{color:#71809c;font-weight:400}@media (width<=560px){.app{padding:0 16px}.save-status{display:none}.top-actions{gap:5px}.editor-panel,.block-toolbar{align-items:flex-start}}.graph-card{background:linear-gradient(145deg,#151f34,#101827);border:1px solid #2c3b58;border-radius:18px;margin:26px 0;padding:22px;overflow:hidden}.graph-heading{justify-content:space-between;align-items:center;gap:12px;display:flex}.graph-heading h3{margin:8px 0 16px;font-size:21px}.graph-eyebrow,.data-label{color:#94a9d5;letter-spacing:1.5px;font-size:10px;font-weight:800}.graph-badge{color:#a9bdff;border:1px solid #4c6090;border-radius:8px;padding:7px 12px;font-size:12px}.graph-modes{flex-wrap:wrap;gap:8px;margin:10px 0 18px;display:flex}.graph-modes button,.graph-controls button{color:#dce5f8;background:#1a263d;border:1px solid #34435f;border-radius:8px;padding:9px 12px}.graph-modes button.selected{color:#dce5ff;background:#293c66;border-color:#849fff}.graph-start,.graph-speed{flex-wrap:wrap;align-items:center;gap:12px;margin:14px 0;display:flex}.graph-start label,.graph-speed label,.author-editor label{color:#dce5f8;font-size:13px}.graph-start span{color:#8290aa;font-size:11px}.graph-start select,.graph-speed select{color:#edf2ff;background:#0d1627;border:1px solid #3a4a68;border-radius:8px;padding:8px 12px}.graph-canvas{background:radial-gradient(circle,#182944,#0d1627 75%);border:1px solid #273650;border-radius:14px;margin:14px 0}.graph-canvas svg{width:100%;max-height:440px;display:block}.graph-edge{stroke:#53647f;stroke-width:2.5px;transition:stroke .25s,stroke-width .25s}.graph-edge.visited-edge{stroke:#8ba5ff;stroke-width:4px}.graph-node{fill:#202e46;stroke:#7183a3;stroke-width:2px;transition:fill .25s,stroke .25s}.graph-node.node-visited{fill:#304879;stroke:#9bb2ff}.graph-node.node-current{fill:#e5bd72;stroke:#fff0c6;stroke-width:3px}.graph-node.node-start{stroke:#80d8bb}.graph-node-label{fill:#f1f5ff;pointer-events:none;font-size:15px;font-weight:800}.graph-start-label{fill:#8ce2c3;letter-spacing:1px;font-size:9px;font-weight:800}.graph-pulse{fill:none;stroke:#e5bd72;stroke-width:2px;opacity:.6}.graph-step-info{background:#131e32;border:1px solid #2c3c59;border-radius:12px;padding:16px}.graph-step-info>span{color:#a6baff;letter-spacing:1px;font-size:10px;font-weight:800}.graph-step-info p{color:#e0e8f7;margin:8px 0 0;line-height:1.65}.graph-data{grid-template-columns:1fr 1fr;gap:12px;margin:14px 0;display:grid}.graph-data>div{background:#111b2d;border:1px solid #2a3953;border-radius:11px;min-width:0;padding:14px}.queue-items{flex-wrap:wrap;gap:7px;margin-top:12px;display:flex}.queue-item{color:#fff;background:#314879;border-radius:7px;place-items:center;width:30px;height:30px;font-weight:700;display:grid}.empty-data{color:#8391aa;font-size:13px}.order-text{color:#dce5f8;overflow-wrap:anywhere;margin:12px 0 0;line-height:1.7}.graph-progress{background:#273650;border-radius:99px;height:4px;margin:16px 0;overflow:hidden}.graph-progress>div{background:#8ba5ff;height:100%;transition:width .2s}.graph-controls{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.graph-controls button:disabled{opacity:.35}.graph-controls .graph-play{color:#fff;background:#354b7b;border-color:#8ba5ff}.author-step-info{margin-bottom:14px}.author-editor{gap:10px;margin-top:18px;display:grid}.author-editor textarea{resize:vertical;color:#edf2ff;background:#0d1627;border:1px solid #3a4a68;border-radius:9px;width:100%;padding:12px;line-height:1.7}.author-editor small{color:#8290aa;line-height:1.6}@media (width<=560px){.graph-card{padding:14px}.graph-data{grid-template-columns:1fr}.graph-heading h3{font-size:18px}}.slide-navigation{background:#141d31;border:1px solid #34415b;border-radius:14px;justify-content:center;align-items:center;gap:18px;margin-top:24px;padding:12px;display:flex}.slide-arrow{color:#e8edf7;background:#202c43;border:1px solid #3a4964;border-radius:9px;width:42px;height:42px;font-size:20px}.slide-indicator{color:#8290aa;justify-content:center;align-items:baseline;gap:6px;min-width:110px;font-size:13px;display:flex}.slide-indicator strong{color:#e8edf7;font-size:20px}.slide-label{color:#92aaff;letter-spacing:1.5px;font-size:10px;font-weight:800}.slide-create-button{background:#263a68!important;border-color:#6e86d6!important}.slide-card{background:#0e162673;border:1px solid #263650;border-radius:16px;margin-top:18px;padding:8px 20px 20px}.slide-title-editor{flex-wrap:wrap;align-items:center;gap:10px;padding:14px 0 8px;display:flex}.slide-title-editor>span{color:#8290aa;letter-spacing:1px;font-size:11px;font-weight:800}.slide-title-editor input{color:#edf2ff;background:#0c1425;border:1px solid #3a4964;border-radius:8px;outline:none;flex:1;min-width:180px;padding:9px 11px}.slide-delete-button{color:#faa;background:#2a1b24;border:1px solid #66404b;border-radius:8px;padding:8px 11px}.slide-delete-button:disabled{opacity:.3;cursor:default}.slide-title{color:#94a9d5;letter-spacing:1.5px;text-transform:uppercase;padding:12px 0 0;font-size:12px;font-weight:800}.empty-slide{color:#8290aa;text-align:center;border:1px dashed #3a4964;border-radius:12px;margin:20px 0;padding:30px}.bottom-slide-navigation{justify-content:center;align-items:center;gap:18px;margin:8px 0 28px;display:flex}.bottom-slide-navigation>span{color:#8290aa;text-align:center;min-width:55px;font-size:13px}@media (width<=560px){.slide-navigation{gap:10px}.slide-card{padding-left:12px;padding-right:12px}.bottom-slide-navigation{gap:10px}.slide-title-editor{align-items:stretch}.slide-title-editor input{width:100%}}.fifo-card{background:linear-gradient(145deg,#151f34,#101827);border:1px solid #2c3b58;border-radius:18px;margin:26px 0;padding:22px}.fifo-heading{justify-content:space-between;align-items:flex-start;gap:14px;display:flex}.fifo-eyebrow,.question-eyebrow{color:#94a9d5;letter-spacing:1.5px;font-size:10px;font-weight:800}.fifo-heading h3,.question-card h3{margin:8px 0 16px}.fifo-badge{color:#a9bdff;border:1px solid #4c6090;border-radius:8px;padding:7px 11px;font-size:12px}.fifo-editor{grid-template-columns:1fr 180px;gap:12px;margin:12px 0 18px;display:grid}.fifo-editor label,.question-editor label{color:#dce5f8;gap:7px;font-size:12px;display:grid}.fifo-editor input,.fifo-editor select,.question-editor input,.question-editor textarea{color:#edf2ff;background:#0d1627;border:1px solid #3a4a68;border-radius:8px;outline:none;width:100%;padding:10px 12px}.fifo-stage{background:#0d1627;border:1px solid #273650;border-radius:14px;padding:18px}.fifo-label-row{color:#8290aa;letter-spacing:1px;text-transform:uppercase;justify-content:space-between;font-size:10px;font-weight:800;display:flex}.fifo-queue{border:2px dashed #344866;border-radius:12px;align-items:center;gap:9px;min-height:72px;margin:14px 0;padding:10px;display:flex;overflow-x:auto}.fifo-item{color:#f2f5ff;background:#263957;border:1px solid #63769d;border-radius:10px;flex:0 0 52px;place-items:center;height:52px;font-size:17px;font-weight:800;transition:transform .3s,opacity .3s;display:grid}.fifo-head{border-color:#91aaff;box-shadow:0 0 0 2px #91aaff1f}.fifo-empty{color:#687790;font-size:13px}.fifo-extracted{color:#8290aa;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;display:flex}.fifo-extracted-item{color:#eaf0ff;background:#30446e;border-radius:7px;padding:6px 10px;font-weight:700}.fifo-explanation{color:#cdd7e9;margin-top:14px;line-height:1.6}.fifo-progress{background:#273650;border-radius:99px;height:4px;margin:16px 0;overflow:hidden}.fifo-progress>div{background:#8ba5ff;height:100%;transition:width .25s}.fifo-controls{flex-wrap:wrap;gap:8px;display:flex}.fifo-controls button,.question-reset,.question-add-option{color:#dce5f8;background:#1a263d;border:1px solid #34435f;border-radius:8px;padding:9px 12px}.fifo-controls .fifo-play{color:#fff;background:#354b7b;border-color:#8ba5ff}.question-card{background:linear-gradient(145deg,#151f34,#101827);border:1px solid #2c3b58;border-radius:18px;margin:26px 0;padding:22px}.question-card h3{color:#eef3ff;line-height:1.5}.question-options{gap:9px;display:grid}.question-option{color:#e3e9f6;text-align:left;background:#172238;border:1px solid #34435f;border-radius:10px;align-items:center;gap:12px;width:100%;padding:12px;display:flex}.question-option:hover:not(:disabled){background:#202f4d;border-color:#819cff}.question-option.selected.correct{background:#193c35;border-color:#70c9a6}.question-option.selected.wrong{background:#42252c;border-color:#d47d87}.question-option-letter{background:#2b3d5e;border-radius:7px;flex:0 0 30px;place-items:center;height:30px;font-weight:800;display:grid}.question-result{border-radius:9px;margin-top:12px;padding:11px 13px;font-weight:700}.question-result.correct{color:#8de0c0;background:#193c35}.question-result.wrong{color:#ffadb5;background:#42252c}.question-hint{color:#b9c5dc;background:#151f34;border-left:3px solid #819cff;margin-top:12px;padding:13px}.question-hint p{white-space:pre-wrap;margin:5px 0 0;line-height:1.6}.question-reset{margin-top:12px}.question-editor{gap:15px;display:grid}.question-editor textarea{resize:vertical;line-height:1.6}.question-options-editor{gap:8px;display:grid}.question-options-editor>span{color:#aab9d5;font-size:12px}.question-option-row{grid-template-columns:24px 1fr 34px;align-items:center;gap:8px;display:grid}.question-option-row input[type=radio]{width:17px;height:17px}.question-remove-option{color:#faa;background:#2a1b24;border:1px solid #66404b;border-radius:7px;height:36px}.question-remove-option:disabled{opacity:.3}.question-add-option{justify-self:start}.optional{color:#71809c;font-size:10px}@media (width<=560px){.fifo-heading{flex-direction:column}.fifo-editor{grid-template-columns:1fr}.fifo-card,.question-card{padding:14px}}.tab.locked,.tab:disabled{color:#46526a;cursor:not-allowed;opacity:.7}.tasks-placeholder{text-align:center;background:linear-gradient(145deg,#151f34,#101827);border:1px solid #34415b;border-radius:18px;margin-top:26px;padding:48px 28px}.tasks-placeholder-icon{color:#a9bdff;border:1px solid #4c6090;border-radius:50%;place-items:center;width:52px;height:52px;margin:0 auto 16px;font-size:24px;font-weight:800;display:grid}.tasks-placeholder h2{margin:0 0 10px}.tasks-placeholder p{color:#98a5bd;max-width:680px;margin:0 auto;line-height:1.7}.task-center{margin:28px 0 36px}.task-center-topline{justify-content:space-between;align-items:flex-start;gap:22px;margin-bottom:22px;display:flex}.task-center-topline h2{letter-spacing:-.6px;margin:9px 0 8px;font-size:clamp(23px,4vw,30px)}.task-center-topline p{color:#98a5bd;max-width:620px;margin:0;font-size:14px;line-height:1.7}.task-editor-kicker{color:#8fa8ff;letter-spacing:1.6px;font-size:10px;font-weight:800}.task-score-card{background:#121d31;border:1px solid #344462;border-radius:13px;flex:0 0 170px;padding:14px}.task-score-card>strong{color:#dfe7ff;font-size:25px;display:block}.task-score-card>strong span{color:#7f8eaa;font-size:15px;font-weight:500}.task-score-card small{color:#91a0ba;margin-top:5px;font-size:11px;display:block}.task-progress-track{background:#293650;border-radius:99px;height:5px;margin-top:10px;overflow:hidden}.task-progress-track span{border-radius:inherit;background:#82d7b4;height:100%;transition:width .25s;display:block}.task-template-bar{background:#121c2f;border:1px solid #34435e;border-radius:13px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px;margin-bottom:18px;padding:17px 18px;display:flex}.task-template-bar>div:first-child{gap:5px;display:grid}.task-template-bar strong{color:#e6ecfa;font-size:13px}.task-template-bar span{color:#8999b5;font-size:12px;line-height:1.5}.task-template-buttons{flex-wrap:wrap;gap:8px;display:flex}.task-template-buttons button,.task-editor-actions button,.task-secondary-action,.task-quiet-button{color:#dce5f8;background:#1a2942;border:1px solid #3b4b6b;border-radius:8px;padding:9px 11px;font-size:12px}.task-template-buttons button:hover,.task-secondary-action:hover,.task-quiet-button:hover{background:#223454;border-color:#829bff}.task-workspace{grid-template-columns:minmax(220px,275px) minmax(0,1fr);align-items:start;gap:18px;display:grid}.task-list-panel,.task-main-panel{background:#111a2b;border:1px solid #2b3a55;border-radius:15px;min-width:0;overflow:hidden}.task-list-heading{border-bottom:1px solid #27354e;justify-content:space-between;align-items:center;padding:16px 15px 13px;display:flex}.task-list-heading strong{color:#ecf1fc;font-size:13px}.task-list-heading>span{color:#adbeef;background:#233351;border-radius:7px;place-items:center;width:25px;height:25px;font-size:11px;font-weight:800;display:grid}.task-filters{gap:4px;padding:10px 10px 7px;display:flex}.task-filters button{color:#8b9ab5;background:0 0;border:1px solid #0000;border-radius:7px;flex:1;padding:7px 5px;font-size:10px}.task-filters button.selected{color:#dce6ff;background:#202f4a;border-color:#394c71}.task-list-items{gap:4px;padding:7px;display:grid}.task-list-item{color:#e3eafa;text-align:left;background:0 0;border:1px solid #0000;border-radius:10px;grid-template-columns:30px minmax(0,1fr) 10px;align-items:center;gap:9px;width:100%;padding:11px 9px;display:grid}.task-list-item:hover{background:#17253b}.task-list-item.active{background:#1c2b46;border-color:#455b88}.task-list-item.done .task-list-number{color:#8ee2c3;background:#20473e}.task-list-number{color:#a7bbff;background:#253653;border-radius:8px;place-items:center;width:29px;height:29px;font-size:10px;font-weight:800;display:grid}.task-list-copy{gap:5px;min-width:0;display:grid}.task-list-copy strong{color:#e5ecfb;text-overflow:ellipsis;font-size:12px;font-weight:650;line-height:1.4;overflow:hidden}.task-list-copy small{color:#8392ac;font-size:10px}.task-list-chevron{color:#7485a4;font-size:19px}.task-list-empty{color:#8796b0;padding:20px 12px;font-size:12px;line-height:1.6}.task-main-panel{min-height:450px}.task-question-card{padding:clamp(19px,3vw,30px)}.task-question-topline{justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px;display:flex}.task-type-badge{color:#a9bdff;background:#1a2941;border:1px solid #3a4c70;border-radius:7px;padding:6px 9px;font-size:10px;font-weight:700}.task-points{color:#9caac3;font-size:11px}.task-question-card h3{color:#f0f4fd;margin:0 0 12px;font-size:clamp(20px,3vw,26px);line-height:1.4}.task-prompt{color:#b5c2d9;white-space:pre-wrap;margin:0 0 22px;font-size:14px;line-height:1.8}.task-answer-options{gap:9px;display:grid}.task-answer-option{color:#dfe7f7;text-align:left;background:#162238;border:1px solid #34445f;border-radius:10px;grid-template-columns:32px minmax(0,1fr) auto;align-items:center;gap:12px;width:100%;padding:12px;font-size:13px;line-height:1.6;transition:background .16s,border-color .16s;display:grid}.task-answer-option:hover:not(:disabled){background:#1c2c48;border-color:#849cff}.task-answer-option.selected{background:#233456;border-color:#839bff}.task-answer-option.revealed-correct{background:#18372f;border-color:#4eae8a}.task-answer-marker{color:#dce6ff;background:#293b5e;border:1px solid #425579;border-radius:8px;place-items:center;width:30px;height:30px;font-size:11px;font-weight:800;display:grid}.task-answer-marker.square{border-radius:5px}.task-answer-check{color:#8de0c0;font-weight:900}.task-short-answer{color:#bcc8de;gap:9px;font-size:12px;display:grid}.task-short-answer input,.task-form-field input,.task-form-field select,.task-form-field textarea{color:#edf2ff;width:100%;min-width:0;font:inherit;background:#0c1525;border:1px solid #3a4a68;border-radius:8px;outline:none;padding:11px 12px}.task-short-answer input:focus,.task-form-field input:focus,.task-form-field select:focus,.task-form-field textarea:focus{border-color:#839cff;box-shadow:0 0 0 2px #839cff20}.task-feedback{border:1px solid;border-radius:10px;gap:5px;margin-top:18px;padding:13px 14px;font-size:12px;line-height:1.6;display:grid}.task-feedback.correct{color:#8de0c0;background:#17352e;border-color:#316e5d}.task-feedback.incorrect{color:#f0aab3;background:#352129;border-color:#75464f}.task-feedback span{color:#b3c0d4}.task-hint-panel,.task-explanation-panel{color:#c1cde2;white-space:pre-wrap;background:#17243b;border-radius:10px;margin-top:16px;padding:14px 15px;font-size:13px;line-height:1.75}.task-hint-panel{border-left:3px solid #829bff}.task-explanation-panel{background:#132c2a;border:1px solid #315c55}.task-explanation-panel>span{color:#8bd5c1;letter-spacing:1.4px;font-size:9px;font-weight:850}.task-explanation-panel p,.task-hint-panel p{margin:6px 0 0}.task-answer-actions{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-top:20px;display:flex}.task-primary-action{color:#111a2e;background:#7b96ff;border:1px solid #7b96ff;border-radius:9px;justify-content:center;align-items:center;gap:16px;margin-left:auto;padding:12px 16px;font-size:13px;font-weight:800;display:inline-flex}.task-primary-action:hover:not(:disabled){background:#9aafff}.task-primary-action:disabled{opacity:.38}.task-secondary-action{color:#b4c3e4;background:0 0}.task-empty-state{text-align:center;padding:50px 24px}.task-empty-state h3{margin-top:0}.task-empty-state p{color:#94a3bc;font-size:13px;line-height:1.7}.task-editor{padding:22px}.task-editor-heading{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:20px;display:flex}.task-editor-heading h3{color:#edf2ff;margin:6px 0 0;font-size:19px}.task-editor-actions{flex-wrap:wrap;gap:6px;display:flex}.task-editor-actions button{padding:7px 9px;font-size:11px}.task-editor-actions .task-delete-button{color:#f2abb5;background:#321f29;border-color:#764451}.task-editor-grid{grid-template-columns:minmax(0,1fr) minmax(100px,130px);gap:15px;display:grid}.task-form-field{color:#c4d0e5;align-content:start;gap:8px;min-width:0;font-size:12px;line-height:1.5;display:grid}.task-field-wide{grid-column:1/-1}.task-form-field textarea{resize:vertical;line-height:1.6}.task-form-field small,.task-muted{color:#7788a6;font-size:10px}.task-edit-options{gap:8px;display:grid}.task-edit-option{grid-template-columns:20px minmax(0,1fr) 30px;align-items:center;gap:8px;display:grid}.task-edit-option input[type=checkbox],.task-edit-option input[type=radio]{accent-color:#8ca4ff;width:16px;height:16px}.task-edit-option button{color:#ffadb5;background:#2a1c25;border:1px solid #65414a;border-radius:7px;height:37px}.task-quiet-button{justify-self:start}@media (width<=760px){.task-center-topline{flex-direction:column}.task-score-card{flex-basis:auto;width:100%}.task-workspace{grid-template-columns:1fr}.task-list-items{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}.task-main-panel{min-height:320px}}@media (width<=480px){.task-template-bar{padding:13px}.task-template-buttons{width:100%;display:grid}.task-template-buttons button{text-align:left}.task-editor{padding:15px}.task-editor-grid{grid-template-columns:1fr}.task-field-wide{grid-column:auto}.task-answer-actions{align-items:stretch}.task-primary-action{width:100%;margin-left:0}}.logo-button{appearance:none;color:#fff;font:inherit;letter-spacing:-1px;cursor:pointer;background:0 0;border:0;padding:0;font-size:22px;font-weight:800}.course-home-hero{padding:42px 0 30px}.course-home-hero h1{letter-spacing:-1.6px;margin:12px 0;font-size:clamp(34px,6vw,48px)}.course-home-hero>p{color:#98a5bd;max-width:700px;line-height:1.8}.course-home-summary{background:#111a2c;border:1px solid #2b3954;border-radius:12px;align-items:center;gap:18px;width:100%;max-width:none;margin-top:18px;padding:11px 15px;display:flex}.course-home-summary>div:first-child{align-items:baseline;gap:8px;min-width:max-content;display:flex}.course-home-summary strong{color:#a9bdff;font-variant-numeric:tabular-nums;font-size:19px;line-height:1.2}.course-home-summary span{color:#98a5bd;white-space:nowrap;font-size:12px}.course-summary-track,.course-progress-track{background:#28354d;border-radius:999px;height:7px;overflow:hidden}.course-summary-track{flex:auto;min-width:70px}.course-summary-track span,.course-progress-track span{border-radius:inherit;background:linear-gradient(90deg,#688aff,#83b4ff);height:100%;transition:width .25s;display:block}.course-add-button{margin-top:20px}.course-catalog{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;padding:12px 0 40px;display:grid}.course-card{background:linear-gradient(145deg,#151f34,#101827);border:1px solid #2c3b58;border-radius:17px;flex-direction:column;min-width:0;padding:22px;display:flex;box-shadow:0 10px 25px #0000001f}.course-card-complete{border-color:#356d63}.course-card-locked{background:linear-gradient(145deg,#111a2c,#0f1726)}.course-card-topline,.course-progress-row,.course-card-bottom,.course-back-row{justify-content:space-between;align-items:center;gap:12px;display:flex}.course-number{color:#8294b5;letter-spacing:1.5px;font-size:10px;font-weight:800}.course-status{border-radius:7px;padding:6px 9px;font-size:11px;font-weight:700}.course-status.available{color:#a9bdff;background:#172640;border:1px solid #354d7d}.course-status.complete{color:#8ce0be;background:#132b2b;border:1px solid #2d6559}.course-status.locked{color:#98a5bd;background:#171e2d;border:1px solid #394357}.course-card h2{letter-spacing:-.4px;margin:22px 0 8px;font-size:22px;line-height:1.3}.course-card-description{color:#98a5bd;flex:1;min-height:54px;margin:0 0 23px;font-size:13px;line-height:1.7}.course-progress-row{color:#98a5bd;margin-bottom:9px;font-size:12px}.course-progress-row strong{color:#dce5f8}.course-progress-track{margin-bottom:20px}.course-card-bottom{align-items:stretch;margin-top:auto}.course-card-bottom>.button{flex:1}.course-delete-button{color:#ffc3cc;background:#2a1b2a;border:1px solid #65414c;border-radius:9px;padding:9px 12px}.course-delete-button:disabled{opacity:.35;cursor:default}.course-editor-fields{gap:12px;margin:20px 0;display:grid}.course-editor-fields label{color:#dce5f8;gap:7px;font-size:12px;display:grid}.course-editor-fields input,.course-editor-fields textarea{color:#edf2ff;width:100%;min-width:0;font:inherit;resize:vertical;background:#0d1627;border:1px solid #3a4a68;border-radius:8px;outline:none;padding:11px 12px}.course-editor-fields input:focus,.course-editor-fields textarea:focus{border-color:#819cff}.course-notice{color:#c7d5ff;background:#15233d;border:1px solid #4b5f8b;border-radius:10px;margin:18px 0;padding:13px 16px;font-size:13px;line-height:1.6}.course-back-row{color:#8290aa;justify-content:flex-start;margin-top:22px;font-size:12px}.course-completion-banner{background:#122725;border:1px solid #32685e;border-radius:14px;margin:24px 0 34px;padding:22px}.course-completion-banner strong{color:#8ce0be;font-size:18px}.course-completion-banner p{color:#bbd8d1;line-height:1.7}.tab.locked{color:#536078;cursor:not-allowed}@media (width<=680px){.course-catalog{grid-template-columns:1fr}.course-home-summary{flex-direction:row;align-items:center;gap:12px;padding:10px 12px}.course-home-summary>div:first-child{gap:6px;min-width:max-content}.course-home-summary strong{font-size:17px}.course-home-summary span{font-size:11px}.course-summary-track{flex:auto;min-width:36px}}.undo-shortcut-hint{color:#98a5bd;white-space:nowrap;font-size:11px}@media (width<=760px){.undo-shortcut-hint{display:none}}.course-order-actions{flex:none;gap:5px;display:flex}.course-order-actions button{color:#dce5f8;background:#1a2942;border:1px solid #3b4b6b;border-radius:8px;width:36px;min-width:36px;padding:8px 0;font-size:16px;font-weight:700}.course-order-actions button:hover:not(:disabled){background:#223454;border-color:#829bff}.course-order-actions button:disabled{opacity:.35;cursor:not-allowed}@media (width<=540px){.course-card-bottom{flex-wrap:wrap}.course-card-bottom>.button{flex-basis:100%}}.task-programming-workspace{gap:16px;min-width:0;display:grid}.task-code-language-row{justify-content:space-between;align-items:end;gap:12px;display:flex}.task-code-language-row label{color:#bdc9df;gap:7px;max-width:260px;font-size:12px;display:grid}.task-code-language-row select{color:#edf2ff;width:100%;font:inherit;background:#0c1525;border:1px solid #3a4a68;border-radius:8px;outline:none;padding:9px 11px}.task-code-file-label{color:#93a7cb;background:#152238;border:1px solid #2b3a55;border-radius:7px 7px 0 0;padding:7px 10px;font:11px/1.2 Consolas,Courier New,monospace}.task-code-input-label{color:#bdc9df;gap:0;font-size:12px;display:grid}.task-code-editor{color:#d7e8ff;white-space:pre;tab-size:4;resize:vertical;background:#08111f;border:1px solid #304261;border-radius:10px;outline:none;width:100%;min-width:0;padding:15px;font:13px/1.65 Consolas,Courier New,monospace;display:block}.task-code-editor:focus{border-color:#7895ef;box-shadow:0 0 0 2px #7895ef20}.task-code-editor-student{border-top-left-radius:0;min-height:300px}.task-code-editor:disabled{opacity:.75}.programming-editor-config{background:#0f1a2c;border:1px solid #2e3e5a;border-radius:11px;gap:16px;padding:15px}.task-test-editor-heading,.task-test-case-title{justify-content:space-between;align-items:center;gap:12px;display:flex}.task-test-editor-heading>div{gap:5px;display:grid}.task-test-editor-heading strong{color:#e6edfb;font-size:13px}.task-test-editor-heading small{color:#8999b5;font-size:11px}.task-test-case-editor{background:#121e32;border:1px solid #2b3d5a;border-radius:10px;gap:12px;padding:13px;display:grid}.task-test-case-title strong{color:#dce6fa;font-size:12px}.task-test-delete{color:#ffadb5;background:#2a1c25;border:1px solid #65414a;border-radius:7px;padding:6px 8px;font-size:11px}.task-test-delete:disabled{opacity:.35;cursor:not-allowed}.task-test-case-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.task-test-visible{color:#aab9d1;align-items:center;gap:8px;font-size:11px;display:flex}.task-test-visible input{accent-color:#829bff}.task-judge-notice{color:#8fa2c1;background:#132037;border:1px solid #3a4c68;border-radius:8px;margin:0;padding:11px 12px;font-size:11px;line-height:1.65}.task-code-examples{background:#121e32;border:1px solid #2b3d5a;border-radius:10px;gap:10px;padding:14px;display:grid}.task-code-examples>strong{color:#dfe8fa;font-size:12px}.task-code-example{border-top:1px solid #2a3953;gap:8px;padding-top:9px;display:grid}.task-code-example>span{color:#9db2dc;font-size:11px;font-weight:800}.task-code-example>div{gap:5px;display:grid}.task-code-example small{color:#8799b8;font-size:10px}.task-code-example pre,.task-code-result pre{color:#cfdef6;white-space:pre-wrap;overflow-wrap:anywhere;background:#08111f;border-radius:7px;max-width:100%;margin:0;padding:9px 10px;font:12px/1.6 Consolas,Courier New,monospace;overflow:auto}.task-code-results{background:#111d30;border:1px solid #354864;border-radius:10px;gap:10px;padding:13px;display:grid}.task-code-results>strong{color:#dfe9fb;font-size:12px;line-height:1.6}.task-code-results.accepted{background:#132c27;border-color:#316e5d}.task-code-results.rejected,.task-code-results.error{background:#2a1b25;border-color:#744750}.task-code-result{border-top:1px solid #34445d;grid-template-columns:minmax(0,1fr) auto;gap:8px 12px;padding-top:9px;font-size:11px;display:grid}.task-code-result span{color:#c8d4e9}.task-code-result strong{color:#a9b9d4;text-align:right}.task-code-result.passed strong,.task-code-result.passed span{color:#88dcbc}.task-code-result.failed strong,.task-code-result.failed span{color:#f2aab5}.task-code-result pre{grid-column:1/-1;max-height:170px}@media (width<=560px){.task-test-case-grid{grid-template-columns:1fr}.task-code-editor-student{min-height:250px}.task-test-editor-heading{flex-direction:column;align-items:flex-start}}.task-matching-list,.task-ordering-list{gap:10px;display:grid}.task-matching-row{color:#dfe7f7;background:#162238;border:1px solid #34445f;border-radius:10px;grid-template-columns:minmax(90px,.8fr) 22px minmax(0,1.2fr);align-items:center;gap:10px;padding:12px;font-size:13px;display:grid}.task-matching-arrow{color:#8fa5ce;text-align:center}.task-matching-row select{color:#edf2ff;width:100%;min-width:0;font:inherit;background:#0c1525;border:1px solid #3a4a68;border-radius:8px;padding:10px}.task-ordering-row{color:#dfe7f7;background:#162238;border:1px solid #34445f;border-radius:10px;grid-template-columns:30px minmax(0,1fr) auto;align-items:center;gap:12px;padding:12px;font-size:13px;line-height:1.6;display:grid}.task-ordering-number{color:#dce6ff;background:#293b5e;border-radius:8px;place-items:center;width:28px;height:28px;font-weight:800;display:grid}.task-ordering-row>div{gap:5px;display:flex}.task-ordering-row button{color:#dce5f8;background:#1a2942;border:1px solid #3b4b6b;border-radius:7px;width:30px;height:30px}.task-ordering-row button:disabled{opacity:.35;cursor:not-allowed}@media (width<=640px){.task-matching-row{grid-template-columns:minmax(0,1fr)}.task-matching-arrow{display:none}}.graph-mode-picker button{font-size:12px}.graph-weight-label{fill:#f4d28a;paint-order:stroke;stroke:#101827;stroke-width:4px;stroke-linejoin:round;font-size:13px;font-weight:900}.graph-edge.selected-edge{stroke:#75dfb0;stroke-width:5px}.grid-model-card{background:linear-gradient(145deg,#151f34,#101827);border:1px solid #2c3b58;border-radius:18px;margin:26px 0;padding:22px;overflow:hidden}.grid-model-heading{justify-content:space-between;align-items:center;gap:12px;display:flex}.grid-model-heading h3{margin:8px 0 16px;font-size:21px}.grid-model-eyebrow{color:#94a9d5;letter-spacing:1.5px;font-size:10px;font-weight:800}.grid-model-cells{background:#0d1627;border:1px solid #273650;border-radius:14px;gap:5px;width:min(100%,560px);margin:18px auto;padding:10px;display:grid}.grid-cell{aspect-ratio:1;color:#e8f0ff;border:1px solid #40516f;border-radius:6px;min-width:0;font-size:clamp(10px,2vw,15px);font-weight:800;transition:background .18s,transform .18s,border-color .18s}.grid-cell:disabled{cursor:default}.grid-cell:not(:disabled){cursor:pointer}.grid-open{color:#29344b;background:#e8eefc}.grid-start{color:#123d32;background:#71d7ad;border-color:#b3ffe0}.grid-model-legend{color:#aab8d1;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;display:flex}.legend-chip{border-radius:5px;justify-content:center;align-items:center;width:22px;height:22px;font-weight:800;display:inline-flex}.grid-start-chip{color:#123d32;background:#71d7ad}.grid-filled-chip{color:#10213e;background:#6c9eff}.grid-wall-chip{color:#c1cde0;background:#34425a}.grid-current{color:#372300;z-index:1;background:#ffca55;border-color:#fff0b3;position:relative;transform:scale(1.04);box-shadow:0 0 0 3px #ffca5555,0 0 18px #ffca5570}.grid-algorithm-row{color:#c5d5f2;background:#111d31;border:1px solid #344a70;border-radius:12px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin:12px 0;padding:10px 12px;font-size:12px;display:flex}.grid-algorithm-options{flex-wrap:wrap;gap:7px;display:flex}.grid-algorithm-options button{color:#c7d8f5;background:#1b2a43;border:1px solid #41587e;border-radius:9px;padding:8px 12px;transition:transform .16s,background .16s,border-color .16s}.grid-algorithm-options button:hover{border-color:#8bb3ff;transform:translateY(-1px)}.grid-algorithm-options button.selected{color:#fff;background:#275fc0;border-color:#80b0ff;box-shadow:0 0 0 2px #4e8dff24}.grid-current-chip{color:#372300;background:#ffca55}.task-report-button{color:#e5efff;cursor:pointer;background:linear-gradient(135deg,#1d3152,#203d6b);border:1px solid #506da4;border-radius:10px;width:100%;margin-bottom:10px;padding:9px 12px;font-size:12px;font-weight:750;transition:transform .16s,border-color .16s,filter .16s}.task-report-button:hover{filter:brightness(1.12);border-color:#8db2ff;transform:translateY(-1px)}.task-report-message{color:#a7f3d0;background:#112c2a;border:1px solid #376e61;border-radius:10px;margin:0 0 12px;padding:10px 13px;font-size:12px}.task-code-editor-student{border:1px solid #344e78;border-radius:0 10px 10px;box-shadow:inset 0 1px #ffffff05}.task-code-editor-student:focus{border-color:#76a5ff;box-shadow:0 0 0 3px #4f8cff20}.theory-code-window{background:#0b1220;border:1px solid #2e3b54;border-radius:14px;margin:16px 0;overflow:hidden;box-shadow:0 12px 30px #0000002e}.theory-code-window-bar{background:#141e30;border-bottom:1px solid #26334a;align-items:center;gap:7px;height:38px;padding:0 13px;display:flex}.theory-code-window-bar>span{background:#ff6b6b;border-radius:50%;width:8px;height:8px}.theory-code-window-bar>span:nth-child(2){background:#ffd166}.theory-code-window-bar>span:nth-child(3){background:#53d89a}.theory-code-window-bar small{color:#91a4c4;letter-spacing:.08em;text-transform:uppercase;margin-left:8px;font-size:11px}.theory-code-window pre{color:#d8e6ff;white-space:pre;margin:0;padding:18px 20px;font:13px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;overflow:auto}.theory-code-editor{box-sizing:border-box;tab-size:4;width:100%;color:#d8e6ff!important;background:#0b1220!important;border:1px solid #34435e!important;border-radius:10px!important;font:13px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace!important}.graph-weight-editor{margin-top:12px}.graph-weight-editor-row{color:var(--text-secondary,#aab7cc);justify-content:space-between;align-items:center;gap:12px;padding:6px 0;font-size:13px;display:flex}.graph-weight-editor-row input{color:#eef4ff;font-variant-numeric:tabular-nums;background:#0d1627;border:1px solid #3b4b68;border-radius:8px;width:92px;min-width:70px;padding:7px 9px}.graph-weight-editor-row input:focus,.theory-code-editor:focus{outline-offset:1px;outline:2px solid #648dff}.theory-code-window,.theory-code-window pre,.theory-code-window code{direction:ltr;text-align:left!important}.theory-code-window pre{box-sizing:border-box;width:100%;display:block}.grid-open{color:#1c2b45;background:#f4f7ff;border-color:#a9c1ee}.grid-wall{color:#f8fafc;background:#64748b;border-color:#94a3b8}.grid-filled{color:#fff;background:#2878f0;border-color:#c7e0ff;box-shadow:inset 0 0 0 2px #a9ceff,0 0 14px #2878f055}.grid-current{color:#25200e;background:#ffd34d;border-color:#fff2ad;box-shadow:0 0 0 3px #ffd34d66,0 0 20px #ffd34d88}.grid-start{color:#073d31;background:#13c99a;border-color:#a6ffe4;box-shadow:0 0 14px #13c99a66}.floyd-matrix-wrap{background:#0e192b;border:1px solid #344967;border-radius:12px;margin:12px 0;padding:12px}.floyd-matrix-scroll{margin-top:8px;overflow-x:auto}.floyd-matrix{border-collapse:separate;border-spacing:4px;font-variant-numeric:tabular-nums;margin:0 auto}.floyd-matrix th,.floyd-matrix td{text-align:center;border-radius:6px;min-width:36px;padding:7px 9px;font-size:12px}.floyd-matrix th{color:#d9e8ff;background:#263a59}.floyd-matrix td{color:#172945;background:#e8f1ff;font-weight:750}.theory-code-window{background:#0b1220}.theory-code-window pre{box-sizing:border-box;width:100%;min-height:100%;display:block;background:#0b1220!important}.theory-code-window pre code{box-sizing:border-box;width:100%;min-height:1.7em;color:inherit;white-space:inherit;display:block;background:0 0!important}.queue-items{align-items:center}.queue-item{box-sizing:border-box;white-space:nowrap;text-overflow:ellipsis;flex:none;min-width:30px;height:30px;min-height:30px;padding:0 8px;animation:none;overflow:hidden;width:auto!important}@keyframes queue-item-enter{0%{opacity:0;transform:translate(-12px)scale(.82)}to{opacity:1;transform:translate(0)scale(1)}}.queue-items{flex-wrap:wrap;align-items:center;gap:7px;display:flex}.queue-item{color:#fff;white-space:nowrap;background:#314879;border-radius:7px;flex:none;place-items:center;width:auto;min-width:30px;height:30px;padding:0 8px;font-weight:700;display:grid}.queue-item-new{animation:.36s cubic-bezier(.22,1,.36,1) both queue-enter}@keyframes queue-enter{0%{opacity:0;transform:translate(-18px)scale(.8)}to{opacity:1;transform:translate(0)scale(1)}}.queue-items{flex-wrap:wrap;align-items:center;gap:7px;margin-top:12px;display:flex}.queue-item{box-sizing:border-box;color:#fff;white-space:nowrap;will-change:transform, opacity;background:#314879;border-radius:7px;flex:none;place-items:center;min-width:30px;height:30px;min-height:30px;padding:0 8px;font-weight:700;display:grid;width:auto!important;animation:none!important}
