.button{color:var(--on-primary)}.button:hover{background:var(--primary-hover)}.button.secondary{color:var(--text-primary)}.button.secondary:hover,.icon-button:hover{background:var(--surface-elevated)}.app-sidebar,.hero-flow,.journey-section{background:var(--theme-surface,#0e1725)}.continue-card{background:var(--theme-surface,#111f33);border-color:var(--primary-border)}.art-corner,.continue-bottom>span,.continue-card p,.continue-progress>span{color:var(--text-secondary)}.browse-art,.continue-art{color:var(--primary);background-color:var(--theme-surface,#13233a);background-image:radial-gradient(var(--theme-grid,#34547a) 1px,transparent 1px);border-color:var(--border)}.app-sidebar nav a.active,.avatar,.choice.selected,.journey-circle,.lesson-number.unlocked,.level-icon,.profile-avatar,.skill-node.current,.skill-node.current .skill-symbol,.task-sidebar nav button.current{background:var(--primary-muted);color:var(--primary);border-color:var(--primary-border)}.diagram-node,.example-block,.exercise,.flow-node,.mini-lesson{background:var(--surface);border-color:var(--border)}.node-0 .node-icon,.node-5 .node-icon,.node-icon{background:var(--primary-muted);color:var(--primary)}.flow-wire,.order-node:after{background:var(--primary-border)}.diagram-node:not(:last-child):after{color:var(--primary)}.concept-callout{background:var(--primary-muted);border-color:var(--primary-border);border-left-color:var(--primary)}.concept-callout strong{color:var(--theme-text,#d7e7ff)}.concept-callout p{color:var(--theme-text,#b6cbea)}.browse-path:hover,.choice:hover,.feature-card:hover,a.lesson-card:hover{border-color:var(--primary-border);background:var(--surface-elevated)}.hint,.objective-list svg{color:var(--primary)}.achievement-icon,.completion-celebration,.feedback.correct,.lesson-number.complete,.mini-feedback,.mini-option.highlighted,.profile-message,.skill-node.done .skill-symbol,.summary-emblem,.task-marker.done{background:var(--success-muted);color:var(--success);border-color:var(--success-border)}.mini-feedback{background:transparent}.achievement div>span,.challenge-earned,.exercise-solved,.item-correct,.skill-node.done .skill-state{color:var(--success)}.completion-celebration p,.lesson-summary li{color:var(--theme-success,#b7d7c6)}.error-banner,.feedback.incorrect{background:var(--error-muted);border-color:var(--theme-error-border,#704250);color:var(--error)}.item-incorrect{color:var(--error)}.lesson-state,.skill-node.current .skill-state{color:var(--primary)}.lesson-content{max-width:820px}.lesson-workspace,.lesson-workspace>*,.task-sidebar nav{min-width:0}@media (max-width:900px){.lesson-workspace{grid-template-columns:minmax(0,1fr)}}.teaching-heading{margin:38px 0 18px;font-size:23px;line-height:1.35}.comparison{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:26px 0}.comparison>section{border:1px solid var(--border);padding:20px;border-radius:5px;background:var(--surface)}.comparison h3{font-size:16px;letter-spacing:0;color:var(--primary);line-height:1.5}.comparison ul{padding-left:18px;margin:0}.comparison li{line-height:1.8;margin-bottom:8px}.comparison li,.comparison p{color:var(--text-secondary);font-size:14px}.comparison p{margin:15px 0 0}.teaching-caption{font-size:13px;color:var(--text-secondary);border-left:2px solid var(--primary-border);padding-left:13px;margin:14px 0 28px}.summary-concepts{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:25px 0 35px}.summary-concepts>div{padding-bottom:15px;border-bottom:1px solid var(--border)}.summary-concepts dt{color:var(--primary);font-weight:600;font-size:14px}.summary-concepts dd{margin:8px 0 0;font-size:14px;color:var(--text-secondary);line-height:1.7}.lesson-section-meta{font-size:12px;letter-spacing:.08em;color:var(--primary);margin-bottom:12px}.revision-notice{border:1px solid var(--primary-border);background:var(--primary-muted);padding:15px 18px;border-radius:4px;font-size:13px;margin-bottom:25px;color:var(--theme-text,#c5dcfb)}@media (max-width:700px){.comparison,.summary-concepts{grid-template-columns:1fr}.teaching-heading{font-size:22px}.lesson-content{padding-top:28px}}.rich-exercise h3,.workflow-builder h3{font-size:21px;line-height:1.5}.rich-exercise>.button{margin-top:22px}.rich-exercise .exercise-instruction,.workflow-builder .exercise-instruction{font-size:14px;line-height:1.7}.category-targets{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:9px;margin:22px 0}.category-target{border:1px dashed var(--primary-border);border-radius:5px;padding:15px 10px;background:var(--primary-muted);display:flex;flex-direction:column;gap:5px;text-align:center;min-height:76px}.category-target strong{color:var(--primary);font-size:13px;line-height:1.5}.category-target span{font-size:12px;color:var(--text-secondary)}.category-cards{display:flex;flex-direction:column;gap:12px}.category-card{border:1px solid var(--border);border-radius:5px;background:var(--surface-elevated);padding:15px}.category-card.dragging{opacity:.5}.category-card-main{display:grid;grid-template-columns:15px 1fr;gap:10px;align-items:start}.category-card-main>svg{color:var(--text-secondary);margin-top:4px}.category-card label{font-size:14px;line-height:1.7}.category-card select{grid-column:2;width:100%;font-size:14px;min-height:42px}.category-card>p{display:flex;gap:8px;font-size:13px;line-height:1.7;margin:14px 0 0;border-top:1px solid var(--border);padding-top:12px}.category-card>p>svg{flex-shrink:0;margin-top:4px}.progressive-hints{margin-top:24px}.hint-button{background:transparent;border:0;padding:0;color:var(--primary);display:flex;align-items:center;gap:7px;font-size:13px;min-height:30px}.progressive-hints p{font-size:13px;color:var(--text-secondary);border-left:2px solid var(--primary-border);padding-left:12px;margin:12px 0 0}.data-table{border:1px solid var(--border);border-radius:5px;overflow:hidden}.data-table-header{display:flex;align-items:center;gap:8px;padding:13px;background:var(--surface-elevated);font-size:12px;color:var(--primary)}.data-table-header>span{margin-left:auto;color:var(--text-secondary);font-size:11px}.data-table label{display:grid;grid-template-columns:16px 90px 1fr;gap:10px;padding:16px;border-top:1px solid var(--border);cursor:pointer;font-size:14px;align-items:center}.data-table label.selected{background:var(--primary-muted)}.data-table label strong{font-weight:400;overflow-wrap:anywhere;color:var(--text-primary)}.data-table label>span{color:var(--text-secondary)}.data-table input{accent-color:var(--primary)}.problem-nodes{display:flex;flex-direction:column;gap:20px;margin:25px 0}.problem-node{position:relative;display:flex;gap:13px;align-items:center;text-align:left;background:var(--surface-elevated);border:1px solid var(--border);border-radius:4px;padding:15px;color:var(--text-primary);width:100%}.problem-node:not(:last-child):after{content:"↓";position:absolute;top:100%;left:50%;color:var(--primary);height:20px}.problem-node.selected{border-color:var(--primary);background:var(--primary-muted)}.problem-node>span{color:var(--text-secondary);font-size:12px}.problem-node small{display:block;font-size:11px;color:var(--primary)}.problem-node strong{font-size:14px;font-weight:500}.problem-node>svg{margin-left:auto;color:var(--primary)}.repair-example{border-top:1px solid var(--border);padding-top:20px;margin-top:20px}.repair-example>strong{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--success)}.repair-example ol{padding-left:22px;font-size:14px}.repair-example li{margin:8px 0}.repair-example li>span{color:var(--text-secondary);font-size:11px;margin-right:9px}.virtual-lab{border:1px solid var(--primary-border);border-radius:7px;background:var(--theme-surface,#101a2a);margin:30px 0;overflow:hidden}.lab-title{padding:22px;border-bottom:1px solid var(--border)}.lab-title>span{font-size:10px;color:var(--primary);letter-spacing:.13em}.lab-title h3{font-size:21px;margin:13px 0}.lab-title p{font-size:14px;color:var(--text-secondary);margin:0}.lab-grid{display:grid;grid-template-columns:1fr 1fr}.lab-panel{padding:20px;border-bottom:1px solid var(--border);min-width:0}.lab-panel:nth-child(odd){border-right:1px solid var(--border)}.builder-results h4,.lab-panel h4{display:flex;gap:7px;align-items:center;font-size:12px;font-weight:500;color:var(--theme-text,#b4c7e1);margin:0 0 17px}.lab-panel.lab-canvas{background-image:radial-gradient(var(--theme-grid,#2a3e5a) 1px,transparent 1px);background-size:15px 15px}.lab-controls{display:flex;gap:12px;flex-wrap:wrap;padding:20px}.simulation-note{font-size:11px!important;color:var(--text-secondary);margin:10px 0 0}.virtual-lab>.simulation-note{padding:0 20px 20px;margin:0}.data-fields{margin:0;gap:9px}.data-fields,.data-fields>div{display:flex;flex-direction:column}.data-fields>div{gap:2px;border-bottom:1px solid var(--theme-border,#2e3b5066);padding-bottom:8px}.data-fields dt{font-size:11px;color:var(--primary);overflow-wrap:anywhere}.data-fields dd{margin:0;font-size:13px;color:var(--text-primary);overflow-wrap:anywhere;line-height:1.6}.simulation-nodes{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:21px}.simulation-nodes li{position:relative;display:flex;align-items:center;gap:9px;background:var(--surface-elevated);border:1px solid var(--border);border-radius:4px;padding:12px;transition:border-color .2s}.simulation-nodes li:not(:last-child):after{content:"";position:absolute;height:21px;width:2px;background:var(--primary-border);top:100%;left:20px}.simulation-nodes li.executed:not(:last-child):after{background:var(--primary)}.simulation-node-state{font-size:10px;color:var(--text-secondary);flex-shrink:0}.simulation-nodes small{font-size:9px;display:block;color:var(--primary);letter-spacing:.05em;text-transform:uppercase}.simulation-nodes strong{font-size:12px;font-weight:500}.order-node.executing,.simulation-nodes li.executing{border-color:var(--primary);background:var(--primary-muted)}.order-node.executed .order-position,.simulation-nodes li.executed .simulation-node-state{color:var(--success)}.data-packet{display:block;font-size:11px;margin-top:6px;color:var(--primary);line-height:1.5;animation:success-enter .25s ease-out}.execution-log{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;font-size:12px;color:var(--text-secondary)}.execution-log li{display:flex;gap:7px;line-height:1.6}.execution-log svg{flex-shrink:0;color:var(--success);margin-top:3px}.run-complete{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--success)}.case-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}.case-tabs button{display:flex;align-items:center;gap:5px;background:var(--surface-elevated);border:1px solid var(--border);border-radius:4px;padding:9px 12px;font-size:12px;color:var(--text-secondary)}.case-tabs button.active{color:var(--primary);border-color:var(--primary-border);background:var(--primary-muted)}.branch-visual{margin:25px 0;display:flex;flex-direction:column;align-items:center}.branch-rule,.branch-trigger{padding:14px 20px;background:var(--surface-elevated);border:1px solid var(--border);border-radius:5px;font-size:13px;position:relative;margin-bottom:24px;display:flex;gap:8px;align-items:center}.branch-rule:after,.branch-trigger:after{content:"";position:absolute;height:24px;width:2px;top:100%;left:50%;background:var(--primary-border)}.branch-rule.active,.branch-trigger.active{border-color:var(--primary);background:var(--primary-muted)}.branch-options{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:100%;border-top:2px solid var(--primary-border);padding-top:18px}.branch-options button{position:relative;display:flex;flex-direction:column;gap:8px;text-align:left;border:1px solid var(--border);background:var(--surface-elevated);padding:15px;color:var(--text-primary);border-radius:4px;font-size:14px}.branch-options button:before{content:"";position:absolute;width:2px;height:18px;background:var(--primary-border);bottom:100%;left:50%}.branch-options small{font-size:10px;color:var(--text-secondary)}.branch-options button.selected{border-color:var(--primary);background:var(--primary-muted)}.branch-options button.executed{border-color:var(--success-border);color:var(--success)}.practice-explanation{font-size:14px;color:var(--text-secondary);margin-top:20px}.workflow-builder{background:var(--theme-surface,#101b2c)}.workflow-builder.final-challenge{border:1px solid var(--primary-border);border-top:3px solid var(--primary);padding-top:27px}.final-challenge .exercise-label>span:first-child{display:flex;align-items:center;gap:7px;color:var(--primary)}.builder-input{background:var(--surface-elevated);border:1px solid var(--border);padding:18px;border-radius:5px;margin:22px 0}.builder-input .eyebrow{font-size:10px;margin-bottom:15px}.builder-input .data-fields{display:grid;grid-template-columns:1fr 1fr;gap:12px}.builder-nodes{padding:16px 0}.builder-controls{display:flex;gap:12px;margin-top:25px;flex-wrap:wrap}.builder-results{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding-top:24px;margin-top:24px;border-top:1px solid var(--border)}.order-node{background:var(--surface-elevated)}.builder-nodes .order-label strong{font-size:14px}.builder-nodes .order-label small{font-size:10px}.rich-exercise .feedback p,.workflow-builder .feedback p{font-size:14px}@media (max-width:1100px){.lab-grid{grid-template-columns:1fr}.lab-panel:nth-child(odd){border-right:0}.simulation-nodes strong{font-size:14px}}@media (max-width:700px){.builder-results{grid-template-columns:1fr}.branch-options{gap:8px}.branch-options button{font-size:13px;padding:12px}.data-table label{grid-template-columns:16px 70px 1fr;font-size:13px;padding:13px 10px}.category-targets{grid-template-columns:repeat(2,1fr)}.category-target strong{font-size:12px}.category-card{padding:12px}.lab-panel{padding:18px}.builder-input .data-fields{grid-template-columns:1fr}.rich-exercise h3,.workflow-builder h3{font-size:20px}.builder-controls .button{font-size:14px}}.lesson-workspace.lab-active{display:block;max-width:1600px;padding:24px 28px 48px}.lab-active>.task-sidebar{position:static;border:0;padding:0 0 22px;width:auto;min-height:0}.lab-active>.task-sidebar>.meta-row,.lab-active>.task-sidebar>.sidebar-tip,.lab-active>.task-sidebar>h2{display:none}.lab-active>.task-sidebar nav{display:flex;flex-direction:row;overflow-x:auto;gap:7px;margin:12px 0 0;padding:3px 0 8px}.lab-active>.task-sidebar nav button{flex:0 0 auto;width:auto;max-width:none;font-size:12px;padding:8px 10px}.lab-active>.lesson-content{max-width:none;padding:0;min-width:0}.lab-active>.lesson-right{display:none}.lab-active .concept-callout,.lab-active .example-block,.lab-active .lesson-text,.lab-active .teaching-heading{max-width:780px}.lab-workspace{--lab-bg:var(--background);margin:32px 0;border:1px solid var(--border);background:var(--surface);border-radius:8px;overflow:hidden;color:var(--text-primary)}.lab-heading{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:23px 26px;border-bottom:1px solid var(--border);background:var(--surface-elevated)}.lab-heading h3{font-size:20px;line-height:1.4;margin:8px 0 0;letter-spacing:-.4px}.lab-heading .eyebrow{font-size:10px}.lab-local-badge{border:1px solid var(--border);border-radius:4px;padding:5px 8px;font-size:10px;color:var(--text-secondary);white-space:nowrap}.lab-layout{display:grid;grid-template-columns:235px minmax(0,1fr)}.lab-brief{padding:24px 19px;border-right:1px solid var(--border);font-size:12px;line-height:1.65;background:var(--background)}.lab-brief h4{font-size:13px;margin:0 0 10px}.lab-brief p{color:var(--text-secondary);margin:0 0 20px}.lab-brief details{margin-bottom:24px}.lab-brief summary{cursor:pointer;color:var(--primary);font-size:12px}.lab-brief details p{margin-top:12px}.lab-requirements{list-style:none;padding:0;margin:0 0 24px}.lab-requirements li{display:flex;align-items:flex-start;gap:9px;margin:12px 0;color:var(--text-secondary)}.lab-requirements svg{flex-shrink:0;margin-top:4px;color:var(--primary)}.lab-test-plan{border-top:1px solid var(--border);padding-top:20px}.lab-test-plan>div{display:flex;gap:9px;align-items:flex-start;margin:12px 0}.lab-test-plan svg{flex-shrink:0;margin-top:4px}.lab-test-plan small{display:block;font-size:10px;color:var(--text-secondary)}.lab-brief .progressive-hints{margin-top:24px}.lab-environment{min-width:0;display:flex;flex-direction:column}.lab-toolbar{display:flex;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:17px 20px;border-bottom:1px solid var(--border)}.lab-toolbar label{font-size:10px;color:var(--text-secondary);display:grid;gap:6px;min-width:160px;max-width:100%}.lab-toolbar>div{display:flex;gap:8px;flex-wrap:wrap}.lab-workspace select{background:var(--background);color:var(--text-primary);border:1px solid var(--border);border-radius:4px;padding:9px;min-width:0;font-size:12px;max-width:100%}.lab-tool-tabs{display:flex;overflow-x:auto;border-bottom:1px solid var(--border);padding:0 10px;gap:2px;background:var(--background)}.lab-tool-tabs button{display:flex;align-items:center;gap:7px;white-space:nowrap;border:0;border-bottom:2px solid transparent;background:transparent;color:var(--text-secondary);font-size:12px;padding:15px 11px;cursor:pointer}.lab-tool-tabs button.active{color:var(--primary);border-bottom-color:var(--primary);background:var(--primary-muted)}.lab-tool-tabs button:hover{color:var(--text-primary);background:var(--surface-elevated)}.lab-tool-tabs button span{font-size:10px;background:var(--surface-elevated);border-radius:3px;padding:1px 5px}.lab-tool-body{min-height:460px;flex:1;min-width:0}.lab-tool-content{padding:26px}.lab-tool-content h4{margin:0 0 8px;font-size:17px}.tool-title{display:flex;gap:13px;align-items:center;margin-bottom:25px}.tool-title svg{color:var(--primary)}.tool-title h4{margin:0 0 5px}.tool-title p{font-size:12px;color:var(--text-secondary);margin:0}.lab-fields{margin:0;border:1px solid var(--border);border-radius:4px;overflow:hidden;font-size:12px}.lab-fields>div{display:grid;grid-template-columns:minmax(100px,.7fr) minmax(0,1.3fr);padding:11px 14px;border-bottom:1px solid var(--border);gap:16px}.lab-fields>div:last-child{border-bottom:0}.lab-fields dt{font-family:Consolas,monospace;color:var(--text-secondary);overflow-wrap:anywhere}.lab-fields dd{margin:0;overflow-wrap:anywhere}.lab-message,.lab-record{border:1px solid var(--border);padding:16px;margin:16px 0;border-radius:5px;background:var(--background)}.lab-message header,.lab-record header{display:flex;justify-content:space-between;gap:12px;font-size:12px;margin-bottom:14px}.lab-message header span,.lab-record header span{color:var(--text-secondary)}.lab-message h5{font-size:15px;margin:8px 0}.lab-message p{font-size:13px;line-height:1.7;color:var(--text-secondary)}.lab-message small{color:var(--primary)}.tool-empty{border:1px dashed var(--border);padding:50px 30px;text-align:center;line-height:1.7;color:var(--text-secondary);font-size:13px;margin-top:20px}.lab-editor{display:grid;grid-template-columns:minmax(0,1fr) 225px;min-width:0}.lab-canvas-column{min-width:0}.node-library{border-bottom:1px solid var(--border);padding:13px 16px}.node-library summary{font-size:12px;cursor:pointer;list-style:none;display:flex;align-items:center;gap:8px}.node-library summary span{font-size:10px;margin-left:auto;color:var(--text-secondary)}.node-library>div{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}.node-library button{display:flex;align-items:center;gap:8px;border:1px solid var(--border);border-radius:4px;background:var(--surface-elevated);color:var(--text-primary);padding:8px 10px;cursor:pointer;text-align:left}.node-library button:hover{border-color:var(--primary)}.node-library strong{font-size:11px;font-weight:500}.node-library small{font-size:9px;color:var(--text-secondary);display:block;margin-top:3px}.node-library p{font-size:11px;color:var(--text-secondary)}.lab-canvas-help{display:flex;align-items:center;gap:7px;padding:10px 16px;font-size:10px;color:var(--text-secondary);min-height:42px}.lab-canvas-scroll{overflow:auto;max-height:570px;background:var(--background)}.lab-canvas{position:relative;min-height:440px;background-image:radial-gradient(var(--border) 1px,transparent 1px);background-size:20px 20px}.lab-wires{position:absolute;top:0;left:0;pointer-events:none;overflow:visible}.lab-wires>path{fill:none;stroke:var(--primary-border);stroke-width:2}.lab-wires marker path{fill:var(--primary)}.lab-wires>path.travelled{stroke:var(--primary);stroke-dasharray:8 5;animation:lab-flow 1.5s linear infinite}@keyframes lab-flow{to{stroke-dashoffset:-26}}.canvas-node{position:absolute;width:224px;height:126px;border:1px solid var(--node-border,var(--border));border-radius:6px;background:var(--surface-elevated);box-shadow:0 4px 10px var(--theme-shadow,#0003)}.canvas-node.selected{border-color:var(--primary);box-shadow:0 0 0 2px var(--primary-muted)}.canvas-node.running{border-color:var(--primary);background:var(--primary-muted)}.canvas-node.error{border-color:var(--error)}.canvas-node.success .canvas-node-body small{color:var(--success)}.canvas-node.error .canvas-node-body small{color:var(--error)}.canvas-node-body{width:100%;height:100%;text-align:left;display:flex;flex-direction:column;justify-content:center;gap:10px;padding:13px 16px;border:0;background:transparent;color:var(--text-primary);cursor:grab;border-radius:6px}.canvas-node-body:active{cursor:grabbing}.node-category{display:flex;justify-content:space-between;align-items:center;font-size:9px;color:var(--primary);text-transform:uppercase;letter-spacing:1px}.canvas-node-body strong{font-size:13px;font-weight:550}.canvas-node-body small{color:var(--text-secondary)}.canvas-node-body small,.node-port{font-size:10px;display:flex;align-items:center;gap:5px}.node-port{justify-content:center;background:transparent;border:0;cursor:crosshair;padding:6px;color:var(--primary);min-width:30px;min-height:30px;z-index:2}.node-port span{display:block;width:10px;height:10px;border:2px solid var(--primary);background:var(--background);border-radius:50%}.node-port:disabled{opacity:.65;cursor:default}.node-port.armed span{background:var(--primary)}.node-port.input{position:absolute;left:96px;top:-16px}.node-outputs{position:absolute;bottom:-16px;left:0;right:0;display:flex;justify-content:center;gap:35px}.canvas-empty{position:absolute;top:100px;left:40px;color:var(--text-secondary);font-size:13px}.node-inspector{border-left:1px solid var(--border);padding:17px;background:var(--surface)}.lab-panel-title{font-size:9px;letter-spacing:1px;color:var(--text-secondary);margin-bottom:18px}.node-inspector h4{font-size:14px;margin:0 0 10px}.node-inspector p{font-size:11px;line-height:1.7;color:var(--text-secondary)}.node-field{display:grid;gap:7px;font-size:11px;margin:18px 0;color:var(--text-primary)}.node-field small{font-size:10px;line-height:1.5;color:var(--text-secondary)}.inspector-connect{border-top:1px solid var(--border);padding-top:5px;margin-top:20px}.inspector-connect h5{font-size:12px;margin:12px 0}.inspector-connect label{display:grid;gap:7px;font-size:10px;margin-bottom:10px}.inspector-connect .button{margin:4px 4px 0 0}.node-layout{font-size:10px;color:var(--text-secondary);margin-top:22px}.node-layout summary{cursor:pointer}.node-layout>div{display:flex;gap:5px;margin-top:10px}.node-layout button{border:1px solid var(--border);background:transparent;color:var(--text-secondary);padding:6px;cursor:pointer;border-radius:3px}.node-layout button.remove-node{display:flex;gap:7px;align-items:center;margin-top:10px;color:var(--error)}.lab-connections{padding:13px 16px;border-top:1px solid var(--border);font-size:11px}.lab-connections summary{cursor:pointer;color:var(--text-secondary)}.lab-connections summary span{margin-left:8px}.lab-connections ul{list-style:none;margin:10px 0 0;padding:0}.lab-connections li{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 0}.lab-connections b{margin:0 5px;color:var(--primary)}.lab-connections button{background:transparent;border:0;cursor:pointer;padding:6px}.lab-connections button,.lab-connections p{color:var(--text-secondary)}.lab-editor-notice{grid-column:1/-1;padding:0 16px;font-size:11px;color:var(--primary);min-height:16px}.lab-execution-strip{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;padding:14px 20px;border-top:1px solid var(--border);font-size:11px;background:var(--background)}.lab-execution-strip>span{display:flex;align-items:center;gap:8px}.lab-execution-strip>span:last-child{color:var(--text-secondary)}.lab-execution-strip.running{color:var(--primary)}.execution-dot{height:7px;width:7px;background:var(--primary);border-radius:50%}.lab-latest-log{font-size:11px;padding:0 20px;color:var(--text-secondary);line-height:1.6}.lab-latest-log.error{color:var(--error)}.lab-log{list-style:none;margin:20px 0;padding:0}.lab-log li{border-top:1px solid var(--border)}.lab-log button{display:flex;gap:12px;width:100%;padding:15px 5px;background:transparent;border:0;color:var(--text-primary);text-align:left;cursor:pointer}.lab-log button:hover{background:var(--surface-elevated)}.lab-log time{font:10px Consolas,monospace;white-space:nowrap;margin-top:2px;color:var(--text-secondary)}.lab-log svg{flex-shrink:0;margin-top:2px;color:var(--success)}.lab-log .error svg,.lab-log code{color:var(--error)}.lab-log button>span{display:grid;gap:6px;font-size:12px}.lab-log strong{font-weight:500}.lab-log button>span>span{font-size:11px;line-height:1.6;color:var(--text-secondary)}.lab-log code{font-size:10px}.data-step-picker{display:grid;gap:8px;font-size:11px;margin:20px 0;max-width:300px}.data-compare{display:grid;grid-template-columns:1fr 1fr;gap:15px}.data-compare h5{font-size:12px;margin:0 0 12px}.lab-validation{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 26px;border-top:1px solid var(--border)}.lab-validation h4{display:flex;align-items:center;gap:8px;font-size:14px;margin:0 0 8px}.lab-validation p{margin:0}.lab-status-message,.lab-validation p{font-size:12px;color:var(--text-secondary)}.lab-status-message{margin:0 26px 15px;line-height:1.6}.lab-status-message.success{color:var(--success)}.lab-check-results{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;padding:0 26px 20px}.lab-check-results h5{font-size:12px;margin:8px 0 12px}.lab-check-results ul{list-style:none;padding:0;margin:0}.lab-check-results li{display:flex;gap:7px;font-size:11px;line-height:1.6;margin:9px 0;color:var(--text-secondary)}.lab-check-results li svg{flex-shrink:0;margin-top:3px}.lab-check-results li.passed svg{color:var(--success)}.lab-check-results p{font-size:11px;color:var(--text-secondary)}.lab-complete{display:flex;gap:12px;margin:0 26px 24px;padding:18px;border:1px solid var(--success-border);background:var(--success-muted);border-radius:5px;color:var(--success)}.lab-complete>svg{flex-shrink:0}.lab-complete strong{font-size:14px}.lab-complete p{font-size:12px;line-height:1.75;margin-bottom:0;color:var(--text-primary)}.lab-footnote{font-size:10px;line-height:1.7;color:var(--text-secondary);padding:0 26px 16px;margin:0}@media (max-width:1400px){.lab-layout{grid-template-columns:205px minmax(0,1fr)}.lab-editor{grid-template-columns:minmax(0,1fr)}.node-inspector{border-left:0;border-top:1px solid var(--border);display:block}.node-field{max-width:380px}.node-inspector p{max-width:650px}.inspector-connect{max-width:380px}.lab-canvas-scroll{max-height:470px}}@media (max-width:900px){.lab-layout{grid-template-columns:minmax(0,1fr)}.lab-brief{border-right:0;border-bottom:1px solid var(--border)}.lab-requirements{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}.lab-brief>p{max-width:700px}.lab-tool-body{min-height:360px}.lab-heading{padding:18px}.lab-heading h3{font-size:18px}.lab-toolbar{padding:15px}.lab-tool-content{padding:18px}}@media (max-width:540px){.lab-heading{align-items:flex-start}.lab-local-badge{display:none}.lab-requirements{display:block}.data-compare{grid-template-columns:1fr}.lab-validation{align-items:flex-start;flex-direction:column;padding:18px}.lab-status-message{margin-left:18px;margin-right:18px}.lab-check-results{padding:0 18px 18px}.lab-complete{margin-left:18px;margin-right:18px}.lab-tool-tabs button{padding:14px 10px}.lab-tool-content{padding:15px}.lab-fields>div{padding:10px;gap:10px;grid-template-columns:100px minmax(0,1fr)}.lab-brief{padding:18px}.lab-toolbar>label{width:100%}}@media (prefers-reduced-motion:reduce){.lab-wires>path.travelled{animation:none}}html{scroll-behavior:auto}.lab-heading h3,.lesson-content>h1{scroll-margin-top:90px}.lab-active .task-sidebar .back-link{margin-bottom:12px}.lab-active .task-sidebar nav button{white-space:nowrap}.explore-note{font-size:12px;color:var(--text-secondary);margin:12px 0 22px}.open-workspace{margin-bottom:22px}.incomplete-notice{margin:22px 0;padding:16px 18px;border:1px solid var(--border);border-radius:5px;background:var(--surface)}.incomplete-notice summary{font-size:13px;cursor:pointer}.incomplete-notice summary span{display:block;color:var(--text-secondary);font-size:11px;margin:6px 0 0 16px}.incomplete-notice ul{padding-left:16px;margin:16px 0}.incomplete-notice li{padding:6px 0}.incomplete-notice button{background:none;border:0;color:var(--primary);cursor:pointer;font-size:12px;line-height:1.6;text-align:left}.incomplete-notice p{font-size:12px;color:var(--text-secondary);line-height:1.6}.lesson-actions{flex-wrap:wrap}.future-payoff{margin-top:60px;border-top:1px solid var(--border);padding-top:32px}.future-payoff h2{font-size:25px;margin:14px 0}.future-payoff>div:last-child{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:25px}.future-payoff article{padding:24px;border:1px solid var(--border);background:var(--surface)}.future-payoff article>span{display:block;font-size:9px;letter-spacing:1px;color:var(--primary);margin:14px 0}.future-payoff h3{font-size:17px;margin:10px 0}.future-payoff article p{font-size:13px;line-height:1.7;color:var(--text-secondary)}.workspace-tour{margin:0 0 22px}.tour-replay{display:flex;align-items:center;gap:7px;border:1px solid var(--primary-border);border-radius:4px;color:var(--primary);padding:8px 10px;font-size:11px;cursor:pointer}.tour-card,.tour-replay{background:var(--primary-muted)}.tour-card{border:1px solid var(--primary-border);padding:14px;margin-top:12px;border-radius:5px}.tour-card>div{display:flex;gap:8px;align-items:center;justify-content:space-between}.tour-card>div>span{font-size:8px;letter-spacing:.6px;color:var(--primary)}.tour-card h5{font-size:13px;margin:14px 0 8px}.lab-brief .tour-card p{font-size:11px;line-height:1.6;margin:0 0 14px}.tour-card button{border:0;background:transparent;color:var(--primary);font-size:11px;padding:4px;cursor:pointer}.tour-card footer{display:flex;justify-content:flex-end;gap:14px}.lab-next-action{margin:8px 20px 18px;padding:14px;border:1px solid var(--border);border-left:2px solid var(--warning);border-radius:4px}.lab-next-action strong{font-size:12px}.lab-next-action p{font-size:11px;line-height:1.7;color:var(--text-secondary)}.lab-next-action>div{display:flex;gap:10px;flex-wrap:wrap}.lab-next-action button{padding:6px 8px;background:var(--surface-elevated);border:1px solid var(--border);border-radius:4px;color:var(--primary);font-size:11px;cursor:pointer}.lab-workspace[data-tour=connections] .node-port,.lab-workspace[data-tour=inspection] .lab-tool-tabs,.lab-workspace[data-tour=nodes] .canvas-node,.lab-workspace[data-tour=run] .lab-toolbar>.button,.lab-workspace[data-tour=workflow] .lab-canvas-scroll{outline:1px solid var(--primary);outline-offset:2px}.lab-workspace[data-tour=run] .lab-toolbar .button:first-child{outline:2px solid var(--primary-hover);outline-offset:3px}.lab-workspace[data-tour=objective] .lab-brief>h4:first-of-type{color:var(--primary)}.lab-brief{align-self:start;min-height:0;overflow:visible}@media (max-width:600px){.lesson-workspace.lab-active{padding:20px 16px 36px}.future-payoff>div:last-child{grid-template-columns:1fr}.lab-active>.task-sidebar{padding-bottom:16px}}.development-panel{border-color:var(--primary-border)}.development-panel>h2{margin-top:16px}.development-panel button[aria-pressed=true]{border-color:var(--primary);color:var(--primary)}.admin-inspector{margin-top:24px}.admin-catalog{display:grid;gap:8px;margin:16px 0 22px}.admin-catalog a{display:grid;gap:7px;border:1px solid var(--border);padding:12px;border-radius:4px;font-size:12px}.admin-catalog a:hover{border-color:var(--primary)}.admin-catalog span{font-size:10px;color:var(--text-secondary)}.admin-inspector pre{font-size:11px;max-height:320px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;background:var(--background);padding:14px;border:1px solid var(--border)}.admin-inspector details{margin:20px 0;cursor:pointer;font-size:12px}.node-port:not(:disabled):focus-visible span,.node-port:not(:disabled):hover span{background:var(--primary);box-shadow:0 0 0 4px var(--surface)}.node-port.output{cursor:grab}.node-port.output:active{cursor:grabbing}.node-port.input:not(:disabled){outline:1px dashed var(--primary);border-radius:6px}.workspace-anchor{scroll-margin-top:90px}.node-port.output{touch-action:none}.node-port{width:44px;height:44px;min-width:44px;min-height:44px;padding:12px}.node-port.input{left:90px;top:-22px}.node-outputs{bottom:-22px}.node-port.input:not(:disabled){outline:none}.node-port span{width:12px;height:12px;flex-shrink:0}.node-port:focus-visible,.node-port:hover{background:var(--surface);border-radius:8px}.node-port.valid-target{outline:1px dashed var(--primary);border-radius:8px}.node-port.drop-target{background:var(--primary);outline:3px solid var(--primary-hover)}.node-port.drop-target span{border-color:var(--background);background:var(--background)}.connecting,.connecting *{user-select:none;-webkit-user-select:none}.connecting .lab-canvas{cursor:crosshair}.lab-wires>path.connection-preview{stroke:var(--primary);stroke-width:3;stroke-dasharray:6 4}.training-editor .training-wire{fill:none;stroke:var(--primary);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;pointer-events:none}.training-editor .training-edge:focus-within .training-wire,.training-editor .training-edge:hover .training-wire{stroke:var(--primary-hover);stroke-width:3.5}.training-editor .training-edge.selected .training-wire{stroke:var(--primary);stroke-width:4}.training-editor .training-wire-hit{fill:none;stroke:transparent;stroke-opacity:0;stroke-width:20;pointer-events:stroke;cursor:pointer;outline:none}.training-editor .connection-preview{fill:none;pointer-events:none}.training-editor .connection-preview.rejected{stroke:var(--error);stroke-dasharray:2 6}.training-editor .canvas-node.valid-node-target{outline:2px dashed var(--primary);outline-offset:3px}.training-editor .canvas-node.node-drop-target{outline-style:solid;background:var(--primary-muted)}.training-connection-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:10px 16px;border-bottom:1px solid var(--border);font-size:11px;color:var(--text-secondary)}.training-connection-toolbar select{color:var(--text-primary);background:var(--surface);padding:6px;border:1px solid var(--border)}.training-editor .lab-canvas-scroll{touch-action:pan-x pan-y}.inspector-connections{margin-top:18px;border-top:1px solid var(--border);padding-top:12px}.inspector-connections h6{margin:12px 0 6px;font-size:11px}.inspector-connections ul{padding:0;list-style:none}.inspector-connections li{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px;font-size:11px}.inspector-connections button{padding:8px;background:var(--surface-elevated);color:var(--text-primary);border:1px solid var(--border);border-radius:4px}.lab-area-label{font-size:10px;letter-spacing:.08em;color:var(--primary);margin-bottom:14px}.lab-brief>h4:first-of-type{font-size:17px}.lab-brief>p:first-of-type{color:var(--text-primary);padding-bottom:18px;border-bottom:1px solid var(--border)}.lab-requirements small{display:block;font-size:10px;color:var(--text-secondary);margin-top:3px}.lab-requirements .passed small,.lab-requirements .passed svg{color:var(--success)}.lab-requirements .failed small,.lab-requirements .failed svg{color:var(--error)}.lab-tool-guide{display:flex;flex-wrap:wrap;align-items:baseline;gap:9px 20px;padding:12px 20px;border-bottom:1px solid var(--border);background:var(--background)}.lab-tool-guide strong{color:var(--primary);font-size:10px;letter-spacing:.06em}.lab-tool-guide span{color:var(--text-secondary);font-size:12px}.lab-toolbar{background:var(--surface-elevated)}.canvas-node.selected{border:2px solid var(--primary);box-shadow:0 0 0 3px var(--primary-muted)}.canvas-node.skipped{border-style:dashed}.canvas-node.skipped .canvas-node-body small{font-style:italic}.node-category>span{font-size:9px;font-weight:700}.node-port.output span{border-radius:3px}.node-port.invalid-target{outline:2px dashed var(--error);background:var(--error-muted);border-radius:8px;cursor:not-allowed}.node-port.invalid-target span{border-color:var(--error)}.inspector-description{padding:12px;border-left:2px solid var(--border);background:var(--background)}.inspector-fields-label{color:var(--primary);font-size:11px;margin:20px 0 10px}.node-inspector .node-field select{background:var(--background);border-color:var(--primary-border);min-height:40px}.lab-editor-notice:not(:empty){padding:12px 16px;background:var(--primary-muted);color:var(--text-primary);border-top:1px solid var(--primary-border)}.lab-fields dd code{font-size:12px;white-space:pre-wrap;overflow-wrap:anywhere}.field-type{display:block;color:var(--text-secondary);font-size:10px;margin-top:3px}.log-severity{display:inline-block;margin-left:10px;font-size:10px;padding:2px 6px;border:1px solid;border-radius:3px}.log-severity.success{color:var(--success)}.log-severity.error{color:var(--error)}.lab-log time{font-variant-numeric:tabular-nums;font-size:11px}.lab-log li.error{border-left:3px solid var(--error);background:var(--error-muted)}.lab-validation{background:var(--surface-elevated);border-top:2px solid var(--border)}.lab-check-results li:not(.passed){color:var(--error)}.lab-check-results li:last-child{color:var(--text-secondary)}@media (max-width:700px){.lab-tool-guide{padding:12px}.lab-toolbar>div{width:100%}.lab-toolbar>div>button{flex:1}}.node-port.output{position:relative}.node-port.output>span{position:absolute;left:16px;top:16px}.node-port .port-label{position:absolute;top:31px;left:50%;transform:translateX(-50%);font-size:9px;background:var(--surface);padding:0 3px;border-radius:2px}.lab-run-summary{font-size:11px;color:var(--text-secondary);flex:1;min-width:160px;padding-bottom:10px}.inspector-jump{border:0;border-top:1px solid var(--border);background:var(--primary-muted);color:var(--primary);padding:10px 16px;font-size:12px;text-align:left;width:100%}.inspector-jump:hover{text-decoration:underline}.node-inspector h4:focus{outline:2px solid var(--primary);outline-offset:5px}.professional-workspace .lab-heading{padding:16px 20px;border-top:3px solid var(--primary)}.professional-workspace .lab-heading h3{font-size:18px}.professional-workspace .lab-brief{padding:18px 16px}.professional-workspace .lab-toolbar{padding:12px 16px}.professional-workspace .lab-tool-tabs button{font-size:12px}.professional-workspace .lab-tool-content{padding:18px}.professional-screen-note{display:none}.execution-history label{display:grid;gap:8px;margin:16px 0}.execution-history select{width:100%;min-width:0}.data-json{margin-top:18px}.data-json pre{overflow:auto;max-height:320px;padding:14px;background:var(--background);border:1px solid var(--border);font-size:12px}.execution-history>details{margin-top:18px}@media (max-width:800px){.professional-screen-note{display:block;margin:0;padding:12px 16px;color:var(--text-secondary);font-size:12px;border-bottom:1px solid var(--border)}.professional-workspace .lab-heading{flex-wrap:wrap}.professional-workspace .lab-tool-tabs{overflow-x:auto}.execution-history select{max-width:100%}}.auth-page{max-width:520px;margin:8vh auto;padding:24px}.auth-card{margin-top:40px;padding:32px;border:1px solid var(--border);background:var(--surface)}.auth-card h1{font-size:32px;margin:18px 0}.account-panel p,.auth-card p{color:var(--text-secondary);line-height:1.7}.account-panel form,.auth-card form{display:grid;gap:16px;margin:20px 0}.account-panel label,.admin-search,.auth-card label{display:grid;gap:8px;font-size:13px}.account-panel input,.account-panel select,.admin-search input,.auth-card input{background:var(--background);border:1px solid var(--border);color:var(--text-primary);border-radius:5px;padding:11px 12px;min-width:0}.account-panel{padding:24px;background:var(--surface);border:1px solid var(--border);margin:24px 0;border-radius:8px}.account-panel h2{font-size:20px;margin-bottom:14px}.account-panel h3{margin:24px 0 10px}.account-panel .button{margin-right:8px}.account-stats,.admin-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:28px}.account-stats>div,.admin-metrics>div{padding:22px;border:1px solid var(--border);background:var(--surface);display:grid;gap:8px}.account-stats strong,.admin-metrics strong{font-size:28px}.account-stats span,.admin-metrics span{color:var(--text-secondary);font-size:13px}.admin-shell{display:grid;grid-template-columns:225px minmax(0,1fr);min-height:100vh}.admin-nav{padding:30px 22px;background:var(--surface);border-right:1px solid var(--border)}.admin-nav .eyebrow{margin:34px 0 18px}.admin-nav nav{display:grid;gap:6px}.admin-nav nav button{display:flex;gap:12px;padding:13px;color:var(--text-secondary);border:0;background:transparent;border-radius:5px;text-align:left;cursor:pointer}.admin-nav nav button.active,.admin-nav nav button:hover{background:var(--background);color:var(--primary)}.admin-identity{display:grid;gap:8px;margin:40px 0 22px}.admin-main{padding:36px;max-width:1500px;width:100%}.admin-top{display:flex;justify-content:space-between;align-items:center;gap:18px}.admin-top h1{font-size:32px;margin:10px 0}.admin-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.admin-search{margin:24px 0;max-width:480px}.admin-table-wrap{overflow:auto}.admin-table-wrap table{width:100%;border-collapse:collapse;text-align:left;font-size:13px}.admin-table-wrap td,.admin-table-wrap th{padding:16px 12px;border-bottom:1px solid var(--border)}.admin-main small,.admin-table-wrap th{color:var(--text-secondary)}.admin-main small{display:block;font-size:12px;margin-top:6px}.admin-row{display:grid;gap:8px;width:100%;background:transparent;border:0;border-bottom:1px solid var(--border);padding:16px 0;text-align:left;color:inherit}button.admin-row{cursor:pointer}.admin-row span{color:var(--text-secondary);font-size:13px}.admin-actions{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}.admin-main .admin-inline{display:flex;align-items:end;gap:12px}.admin-main pre{white-space:pre-wrap;overflow-wrap:anywhere;background:var(--background);padding:18px;max-height:380px;overflow:auto;font-size:12px}.admin-main details{border-bottom:1px solid var(--border);padding:14px 0}.admin-main summary{cursor:pointer}.admin-main .content-row{grid-template-columns:minmax(180px,3fr) repeat(3,minmax(65px,1fr));align-items:end;padding:20px 0;border-bottom:1px solid var(--border)}.confirmation-backdrop{position:fixed;inset:0;background:var(--theme-overlay,#030815cc);display:grid;place-items:center;z-index:100;padding:20px}.confirmation-dialog{max-width:520px;background:var(--surface);border:1px solid var(--border);padding:28px;box-shadow:0 20px 80px var(--theme-shadow,#0008)}.confirmation-dialog p{line-height:1.7;margin-top:15px}.admin-preview:not(:empty){padding:12px 24px;background:var(--surface);color:var(--primary)}@media (max-width:850px){.admin-shell{grid-template-columns:1fr}.admin-nav{padding:18px}.admin-nav nav{display:flex;overflow:auto}.admin-identity,.admin-nav .eyebrow{display:none}.admin-main{padding:20px}.admin-grid{grid-template-columns:1fr}.admin-metrics{grid-template-columns:repeat(2,1fr)}.admin-main .content-row{grid-template-columns:1fr 1fr}.account-stats{grid-template-columns:1fr}.admin-top{align-items:start}}.confirmation-dialog{margin:auto;color:var(--text-primary);width:min(520px,calc(100% - 32px));max-height:calc(100dvh - 32px);overflow:auto}.confirmation-dialog::backdrop{background:var(--theme-overlay,#030815cc)}.execution-summary{padding:12px 18px;background:var(--background);font-size:13px;line-height:1.8;overflow-wrap:anywhere}.execution-summary ol,.execution-summary ul{padding-left:20px;list-style:revert}.admin-main,.admin-nav{min-width:0}@media (max-width:850px){.admin-shell{grid-template-columns:minmax(0,1fr)}.admin-nav nav button{flex-shrink:0}.admin-top{flex-wrap:wrap}}