:root{--kb-navy:#0e1436;--kb-navy-raised:#1a2349;--kb-panel-blue:#e5f0ff;--kb-panel-blue-soft:#e9f1fc;--kb-border-blue:#d9e3f2;--kb-text:#575e75;--kb-orange:#f8a61c;--kb-teal:#0fbd8c;--kb-white:#fff;color:var(--kb-text);background:var(--kb-panel-blue-soft);font-synthesis:none;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html,body,#app{width:100%;height:100%;margin:0;overflow:hidden}button,input,select{font:inherit;letter-spacing:0}button{cursor:pointer}.app-shell{background:#f7faff;grid-template-rows:56px 48px auto auto minmax(0,1fr);height:100%;display:grid;overflow:hidden}.topbar{background:var(--kb-navy);color:#fff;grid-row:1;align-items:center;gap:14px;padding:0 16px;display:flex}.editor-tabs{grid-row:2}.notification-banner{grid-row:3}.issue-panel{grid-row:4}.workspace-shell{grid-row:5}.sr-only{clip:rect(0, 0, 0, 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#080d2857}.story-library-dialog>header{justify-content:space-between;align-items:flex-start;margin-bottom:14px;display:flex}.story-library-dialog>header span{color:#0f8f8f;text-transform:uppercase;font-size:10px;font-weight:850}.story-library-dialog h2{color:var(--kb-navy);margin:2px 0 0;font-size:21px}.story-library-controls{background:#b9d6fb;align-items:center;gap:14px;margin:0 -18px 14px;padding:10px 18px;display:flex}.story-library-controls input{width:230px;height:40px;color:var(--kb-text);background:#fff;border:0;border-radius:20px;padding:0 14px}.story-library-categories{gap:8px;display:flex;overflow-x:auto}.story-library-categories button{background:var(--kb-navy);color:#fff;white-space:nowrap;border:0;border-radius:19px;height:38px;padding:0 17px;font-size:12px;font-weight:800}.story-library-categories 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#d9e0ea;grid-template-columns:minmax(0,1fr) auto;gap:6px;padding:6px 8px;display:grid}#serial-form input{border:1px solid #c9d5e7;border-radius:4px;min-width:0;padding:0 9px}#serial-form button{background:var(--kb-teal);color:#fff;border:0;border-radius:4px;padding:0 13px;font-weight:800}#serial-form button:disabled{opacity:.45;cursor:default}.results-header{border-bottom:1px solid #d9e0ea;justify-content:space-between;align-items:center;height:54px;padding:0 16px;display:flex}.results-header>div{align-items:baseline;gap:8px;display:flex}.results-header strong{font-size:15px}.results-header span{color:#64748b;font-size:11px}.stage-panel{background:var(--kb-panel-blue-soft);height:100%;padding:6px 10px 8px;overflow:hidden}.stage-panel[hidden]{display:none}.stage-panel-heading{justify-content:space-between;align-items:center;min-height:32px;margin-bottom:5px;display:flex}.stage-panel h2{color:var(--kb-navy);margin:0;font-size:13px;font-weight:800}.stage-runtime-controls{margin:0}.stage-runtime-controls button{width:30px;height:30px;color:var(--kb-text);background:#fff;border-color:#b8c7dc;justify-content:center;padding:0}.stage-runtime-controls .stage-flag-button{color:#fff}.stage-surface{aspect-ratio:4/3;background:#fff;border:1px solid #b8c7dc;border-radius:4px;outline:none;width:100%;position:relative;overflow:hidden;box-shadow:0 2px 8px #0e143614}.stage-surface:focus-visible{border-color:#0f8f8f;box-shadow:0 0 0 3px #0f8f8f33}.stage-surface{background-position:50%;background-size:cover}.stage-actor{transform-origin:50%;width:82px;height:100px;transition:left 80ms linear,top 80ms linear,transform 80ms linear;position:absolute}.stage-actor[hidden]{display:none}.stage-sprite{object-fit:contain;filter:drop-shadow(0 4px 4px #0e143629);transform-origin:50%;max-width:246px;height:100%;display:block;position:absolute;inset:0}.stage-sprite[hidden]{display:none}.stage-speech{z-index:2;color:#172033;overflow-wrap:anywhere;transform-origin:50%;background:#fff;border:1px solid #94a3b8;border-radius:6px;width:max-content;max-width:180px;padding:7px 9px;font-size:12px;font-weight:650;line-height:1.35;position:absolute;top:0;left:50%;box-shadow:0 4px 10px #1720331f}.stage-speech[hidden]{display:none}.stage-coordinates{color:#64748b;text-align:center;margin-top:4px;font:10px/1.3 Cascadia Code,Consolas,monospace}.stage-surface[data-runtime-state=running]{border-color:#0f8f8f}.stage-flag-button{background:#15803d!important;border-color:#15803d!important}.actor-editor{border:1px solid var(--kb-border-blue);background:#fff;border-radius:5px;grid-template-columns:minmax(74px,1.45fr) repeat(4,minmax(38px,.65fr)) 30px;gap:4px;margin-top:6px;padding:5px;display:grid}.actor-editor label{color:#7b8398;text-transform:uppercase;gap:3px;font-size:9px;font-weight:800;display:grid}.actor-editor input[type=text],.actor-editor input[type=number],.actor-editor input:not([type]){width:100%;min-width:0;height:27px;color:var(--kb-text);background:#fbfdff;border:1px solid #c9d5e7;border-radius:4px;padding:3px 5px;font-size:10px}.actor-visible-field{align-content:end;justify-items:center}.actor-visible-field input{width:18px;height:18px;accent-color:var(--kb-teal)}.stage-library-row{grid-template-columns:minmax(0,1.45fr) minmax(132px,.9fr);gap:6px;margin-top:6px;display:grid}.sprite-library,.backdrop-library{border:1px solid var(--kb-border-blue);background:#fff;border-radius:5px;min-width:0;padding:5px}.library-heading{color:#64748b;text-transform:uppercase;justify-content:space-between;align-items:center;font-size:10px;display:flex}.library-heading>div{gap:4px;display:flex}.library-heading .icon-command{width:24px;height:24px}.backdrop-choose-button{color:#0f766e;background:#f0fdfa;border:1px solid #0f8f8f;border-radius:4px;justify-content:center;align-items:center;gap:5px;width:100%;height:27px;margin-top:4px;font-size:10px;font-weight:800;display:flex}.backdrop-choose-button svg{width:13px;height:13px}.sprite-list{gap:5px;margin-top:4px;display:flex;overflow-x:auto}.sprite-thumbnail{min-height:42px;color:var(--kb-text);text-align:left;background:#fff;border:2px solid #d9e3f2;border-radius:5px;flex:0 0 104px;grid-template-columns:30px minmax(0,1fr);align-items:center;gap:5px;padding:3px 5px;font-size:9px;font-weight:750;display:grid}.sprite-thumbnail.active{border-color:var(--kb-orange);background:#fffaf0}.sprite-thumbnail img{object-fit:contain;width:28px;height:34px}.backdrop-library select{width:100%;height:28px;color:var(--kb-text);background:#fbfdff;border:1px solid #c9d5e7;border-radius:4px;margin-top:4px;font-size:10px}.graphics-panel,.console-panel{padding:14px 16px}.graphics-panel[hidden]{display:none}.graphics-panel{background:#f8fafc;border-bottom:1px solid #d9e0ea}.graphics-panel h2,.console-panel h2{color:#475569;text-transform:uppercase;margin:0 0 10px;font-size:11px;font-weight:800}#turtle-canvas{aspect-ratio:18/11;background:#fff;border:1px solid #d9e0ea;width:100%;max-width:360px;height:auto;display:block}#runtime-console{white-space:pre-wrap;overflow-wrap:anywhere;min-height:88px;font:12px/1.55 Cascadia Code,Consolas,monospace}.results-empty{color:#94a3b8;margin:0;font-family:Inter,ui-sans-serif,system-ui,sans-serif}.result-line{color:#172033;padding:2px 0}.result-stderr{color:#b45309}.result-error{color:#991b1b;background:#fef2f2;border-left:3px solid #dc2626;margin:4px 0;padding:8px 9px}.result-image{background:#f8fafc;border:1px solid #d9e0ea;border-radius:6px;margin:8px 0;padding:8px}.result-image img{object-fit:contain;background:#fff;width:100%;height:auto;max-height:260px;display:block}.result-classification{background:#f0fdfa;border:1px solid #99d5d0;border-left:4px solid #0f8f8f;border-radius:6px;gap:4px;margin:8px 0;padding:10px;font-family:Inter,ui-sans-serif,system-ui,sans-serif;display:grid}.result-classification>strong{color:#134e4a;font-size:15px}.result-classification>span{color:#0f766e;font-size:12px;font-weight:700}.result-classification ol{color:#475569;gap:3px;margin:6px 0 0;padding-left:20px;font-size:11px;display:grid}.result-ai-response{background:#faf8ff;border:1px solid #c4b5fd;border-left:4px solid #6d28d9;border-radius:6px;gap:6px;margin:8px 0;padding:10px;font-family:Inter,ui-sans-serif,system-ui,sans-serif;display:grid}.result-ai-response strong{color:#4c1d95;font-size:12px}.result-ai-response p{color:#334155;white-space:pre-wrap;overflow-wrap:anywhere;margin:0;font-size:12px;line-height:1.55}.media-capability-panel{background:#f8fafc;border-bottom:1px solid #d9e0ea;padding:14px 16px}.media-capability-panel[hidden]{display:none}.media-capability-panel h2{color:#475569;text-transform:uppercase;margin:0 0 10px;font-size:11px;font-weight:800}.media-capability-panel video{aspect-ratio:4/3;object-fit:cover;background:#111827;border:1px solid #d9e0ea;width:100%;display:block}.media-capability-actions{gap:8px;margin-top:10px;display:flex}.media-capability-actions button{color:#0f766e;background:#fff;border:1px solid #0f8f8f;border-radius:5px;min-height:34px;padding:0 10px;font-weight:750}.media-capability-actions button:first-child{color:#fff;background:#0f8f8f}.result-arduino-compiled{color:#166534;font-weight:750}.result-arduino-compiling{color:#075985;font-weight:750}.result-arduino-compile-error{color:#991b1b;font-weight:750}.result-arduino-stale{color:#92400e;font-weight:750}.result-metadata{color:#64748b;margin-top:5px;font-size:11px}.result-diagnostic{color:#991b1b;background:#fef2f2;border-left:3px solid #dc2626;margin-top:7px;padding:8px 9px}.result-diagnostic.result-warning{color:#92400e;background:#fffbeb;border-color:#d97706}.board-status{color:#64748b;border-top:1px solid #d9e0ea;gap:5px;margin-top:14px;padding-top:12px;font-family:Inter,ui-sans-serif,system-ui,sans-serif;display:grid}.board-status strong{color:#334155;text-transform:uppercase;font-size:11px}.board-status span{font-size:12px}.board-status-upload-error,.board-status-unsupported{color:#991b1b}.board-status-upload-success{color:#166534}.board-status progress{accent-color:#0f8f8f;width:100%;height:8px}.blocklyToolbox{box-shadow:none;border-right:2px solid #c8d5e7;padding:4px 0;background:var(--kb-panel-blue-soft)!important;width:85px!important}.blocklyToolboxCategoryContainer{width:85px}.blocklyToolboxCategory{border-radius:4px;height:42px;margin:2px 3px;transition:background .12s;background:0 0!important;padding:0 4px!important}.blocklyToolboxCategory:hover{background:#ffffffb8!important}.blocklyToolboxSelected{box-shadow:0 1px 4px #0e14361a;background:#fff!important}.blocklyTreeRowContentContainer{align-items:center;gap:3px;width:100%;height:100%;display:flex}.blocklyToolboxCategoryIcon{border-radius:50%;flex:none;width:9px!important;height:9px!important}.blocklyToolboxCategoryLabel{text-overflow:ellipsis;white-space:nowrap;font-family:inherit;font-size:8px;font-weight:750;overflow:hidden;max-width:69px!important;color:var(--kb-text)!important}.blocklyFlyoutBackground{fill:#fff;fill-opacity:1;stroke:#b8c7dc;stroke-width:2px}.blocklyFlyout{filter:drop-shadow(2px 0 3px #0e14360f)}.blocklyFlyoutScrollbar{display:block}.kblox-inactive-block{opacity:.62;filter:grayscale(.42)}.kblox-inactive-block:hover,.kblox-inactive-block.blocklySelected{opacity:.8}.blocklyText,.blocklyHtmlInput{font-family:Inter,ui-sans-serif,system-ui,sans-serif!important;font-weight:600!important}.blocklyScrollbarHandle{fill:#9eacc0!important}@media (width<=820px){.topbar{padding:0 10px}.brand-block{min-width:auto}.brand-logo{width:98px}.project-name{display:none}.project-action{width:34px;padding:0}.project-action span{display:none}.coding-mode-switch button{justify-content:center;width:34px;padding:0;font-size:0}.hardware-button span{text-overflow:ellipsis;white-space:nowrap;max-width:108px;overflow:hidden}.view-switch button{padding:0 8px}.view-switch button svg+*{display:none}.runtime-controls button{justify-content:center;width:34px;padding:0;font-size:0}.workspace-shell.with-results{grid-template-columns:minmax(0,1fr) minmax(260px,36vw)}.actor-editor{grid-template-columns:1fr 1fr}}