:root{--bg-main: #0f172a;--bg-surface: #1e293b;--bg-panel: #111827;--bg-card: #334155;--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-primary: #00979d;--accent-hover: #008388;--accent-active: #006e72;--accent-warning: #f59e0b;--accent-danger: #ef4444;--accent-success: #10b981;--border-color: #334155;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", "Courier New", monospace;--header-height: 56px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .3), 0 2px 4px -2px rgb(0 0 0 / .3);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .4), 0 4px 6px -4px rgb(0 0 0 / .4)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-main);color:var(--text-primary);height:100vh;overflow:hidden;display:flex;flex-direction:column}.app-header{height:var(--header-height);background:var(--bg-surface);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 16px;z-index:100;position:relative}.header-left,.header-center,.header-right{display:flex;align-items:center;gap:12px}.app-brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:1.1rem;color:var(--text-primary);text-decoration:none}.app-brand span.badge{background:var(--accent-primary);color:#fff;font-size:.7rem;padding:2px 6px;border-radius:var(--radius-sm);font-weight:600;text-transform:uppercase}.btn{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border-color);padding:6px 12px;font-size:.85rem;font-weight:500;border-radius:var(--radius-sm);cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:all .15s ease-in-out}.btn:hover{background:#475569;border-color:#64748b}.btn-primary{background:var(--accent-primary);border-color:var(--accent-primary);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-success{background:var(--accent-success);border-color:var(--accent-success);color:#fff}.btn-danger{background:var(--accent-danger);border-color:var(--accent-danger);color:#fff}.select-control{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border-color);padding:6px 10px;font-size:.85rem;border-radius:var(--radius-sm);outline:none;cursor:pointer}.select-control:focus{border-color:var(--accent-primary)}.app-container{display:flex;flex:1;height:calc(100vh - var(--header-height));position:relative;overflow:hidden}.workspace-panel{flex:1;height:100%;position:relative}#blocklyDiv{width:100%;height:100%;position:absolute}.side-panel{width:var(--side-panel-width, 480px);min-width:320px;max-width:800px;background:var(--bg-panel);border-left:1px solid var(--border-color);display:flex;flex-direction:column;height:100%;position:relative;transition:transform .3s ease}.side-panel-toggle{display:none;position:absolute;top:50%;right:0;transform:translateY(-50%);z-index:50;background:var(--bg-surface);border:1px solid var(--border-color);border-right:none;border-radius:var(--radius-sm) 0 0 var(--radius-sm);width:28px;height:48px;cursor:pointer;align-items:center;justify-content:center;font-size:.8rem;color:var(--text-secondary);transition:background .15s ease}.side-panel-toggle:hover{background:var(--bg-card);color:var(--text-primary)}.header-toolbox-toggle{padding:4px 8px;font-size:.9rem;opacity:.7;transition:all .15s ease}.header-toolbox-toggle:hover{opacity:1}.header-toolbox-toggle.active{opacity:1;color:var(--accent-primary);border-color:var(--accent-primary)}.side-panel-backdrop{display:none;position:absolute;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:40;opacity:0;transition:opacity .3s ease}.side-panel-backdrop.visible{opacity:1}.header-hamburger,.header-more-btn{display:none}.header-secondary-group{display:flex;align-items:center;gap:12px}.header-mobile-menu{display:none;position:absolute;top:var(--header-height);left:0;right:0;background:var(--bg-surface);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow-lg);z-index:99;padding:12px 16px;flex-direction:column;gap:10px;max-height:calc(100vh - var(--header-height));overflow-y:auto}.header-mobile-menu.open{display:flex}.header-more-dropdown{display:none;position:absolute;top:100%;right:16px;background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:99;padding:8px;gap:6px;flex-direction:column;min-width:180px}.header-more-dropdown.open{display:flex}@media(max-width:1023px){.side-panel-toggle{display:flex}.side-panel{position:absolute;top:0;right:0;z-index:45;width:min(480px,80vw);transform:translate(100%);box-shadow:var(--shadow-lg)}.side-panel.open{transform:translate(0)}.side-panel-backdrop.visible{display:block}.app-header{flex-wrap:wrap;height:auto;min-height:var(--header-height);padding:8px 16px;gap:8px}.header-center{flex-wrap:wrap;gap:8px}.header-more-btn{display:inline-flex}.header-secondary-group{display:none}}@media(max-width:767px){.side-panel{width:100vw;min-width:0}.side-panel.open{transform:translate(0)}.app-header{flex-wrap:nowrap;padding:0 12px}.header-center,.header-right{display:none}.header-hamburger{display:inline-flex}.brand-text,.app-brand .badge{display:none}.brand-emoji{font-size:1.3rem}.app-container{height:calc(100vh - var(--header-height) - 56px)}.side-panel-toggle{display:none}.side-panel{bottom:56px;top:0;height:calc(100vh - var(--header-height) - 56px)}.side-panel-backdrop{bottom:56px}}.panel-tabs{display:flex;background:var(--bg-surface);border-bottom:1px solid var(--border-color)}.panel-tab{flex:1;padding:10px 14px;text-align:center;font-size:.85rem;font-weight:600;color:var(--text-secondary);background:transparent;border:none;cursor:pointer;border-bottom:2px solid transparent;transition:all .2s ease}.panel-tab.active{color:var(--text-primary);border-bottom-color:var(--accent-primary);background:var(--bg-panel)}.panel-content{flex:1;overflow:hidden;display:none;flex-direction:column}.panel-content.active{display:flex}.code-viewer-container{display:flex;flex-direction:column;height:100%}.code-viewer-toolbar{padding:8px 12px;background:var(--bg-surface);border-bottom:1px solid var(--border-color);display:flex;justify-content:flex-end;gap:8px}.code-editor-pre{flex:1;overflow:auto;padding:16px;margin:0;font-family:var(--font-mono);font-size:.85rem;line-height:1.5;color:#e2e8f0;background:#090d16;white-space:pre}.serial-monitor-container{display:flex;flex-direction:column;height:100%}.serial-toolbar{padding:8px 12px;background:var(--bg-surface);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;gap:8px}.serial-log{flex:1;overflow-y:auto;padding:12px;background:#050811;color:#38bdf8;font-family:var(--font-mono);font-size:.8rem;line-height:1.4;white-space:pre-wrap;word-break:break-all}.serial-input-row{display:flex;padding:8px 12px;background:var(--bg-surface);border-top:1px solid var(--border-color);gap:8px}.serial-input-row input{flex:1;background:var(--bg-panel);border:1px solid var(--border-color);color:var(--text-primary);font-family:var(--font-mono);font-size:.85rem;padding:6px 10px;border-radius:var(--radius-sm);outline:none}.serial-input-row input:focus{border-color:var(--accent-primary)}.telemetry-container{display:flex;flex-direction:column;height:100%}.telemetry-toolbar{padding:8px 12px;background:var(--bg-surface);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;gap:8px}.telemetry-title{display:flex;align-items:center;gap:6px;font-size:.85rem;font-weight:600;color:var(--text-primary)}.telemetry-controls{display:flex;gap:6px}.telemetry-controls .btn{padding:4px 8px;font-size:.8rem}.telemetry-legend{display:flex;flex-wrap:wrap;gap:8px;padding:8px 12px;background:var(--bg-panel);border-bottom:1px solid var(--border-color);min-height:32px}.telemetry-badge{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;background:var(--bg-card);border-radius:var(--radius-sm);font-size:.75rem;color:var(--text-secondary)}.telemetry-badge strong{color:var(--text-primary)}.telemetry-canvas-wrapper{flex:1;display:flex;justify-content:center;align-items:center;background:#0f172a;padding:8px;overflow:hidden}.telemetry-canvas-wrapper canvas{width:100%;height:100%;max-height:100%}.robotics-arena-panel{display:flex;flex-direction:column;gap:8px;background:#0d1117;border:1px solid #30363d;border-radius:8px;padding:10px;font-family:var(--font-sans);color:#c9d1d9}.robotics-arena-header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #21262d;padding-bottom:6px}.robotics-arena-header-left{display:flex;align-items:center;gap:6px}.robotics-arena-header-icon{font-size:1.1rem}.robotics-arena-header-title{color:#58a6ff;font-size:.9rem}.robotics-arena-type-badge{font-size:.75rem;background:#21262d;padding:2px 6px;border-radius:4px;color:#8b949e;text-transform:uppercase}.robotics-arena-canvas-wrapper{position:relative;display:flex;justify-content:center;background:#161b22;border-radius:6px;overflow:hidden;border:1px solid #30363d}.robotics-arena-canvas-wrapper canvas{width:100%;max-width:600px;height:auto;cursor:crosshair;display:block}.robotics-arena-hud{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;font-size:.75rem;background:#161b22;padding:6px 10px;border-radius:6px;border:1px solid #21262d}.robotics-arena-hud-label{color:#8b949e}.robotics-arena-hud-value{color:#79c0ff}.robotics-arena-hud-value.dist{color:#d29922}.robotics-arena-hud-value.motors{color:#3fb950}.robotics-arena-hud-value.line{color:#f778ba}.robotics-arena-drive-controls{display:flex;justify-content:center;gap:6px;margin-top:2px}.btn-arena-drive{padding:4px 10px;font-size:.75rem;background:#21262d;border:1px solid #30363d;color:#fff;border-radius:4px;cursor:pointer}.btn-arena-drive:hover{background:#30363d}.btn-arena-drive.stop{background:#da3633;border-color:#f85149}.btn-arena-drive.stop:hover{background:#f85149}.btn-arena-reset{padding:3px 8px;font-size:.75rem;background:#21262d;color:#c9d1d9;border:1px solid #30363d;border-radius:4px;cursor:pointer}.btn-arena-reset:hover{background:#30363d}.transfer-function-card{background:#1c2128;border:1px solid #30363d;border-radius:6px;padding:10px;margin-top:8px}.transfer-function-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.transfer-function-title{font-size:.75rem;color:#58a6ff;display:flex;align-items:center;gap:4px}.transfer-function-readout{font-size:.7rem;color:#3fb950;font-family:var(--font-mono);font-weight:700}.transfer-function-body{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.transfer-function-plotter{background:#0d1117;border-radius:4px;border:1px solid #21262d;padding:4px}.transfer-function-mapping-table{flex:1;min-width:140px;font-size:.7rem}.transfer-function-mapping-table table{width:100%;border-collapse:collapse;text-align:center;color:#c9d1d9}.transfer-function-mapping-table thead tr{border-bottom:1px solid #30363d;color:#8b949e}.transfer-function-mapping-table th,.transfer-function-mapping-table td{padding:2px}.pixel-modal-box{max-width:680px;width:90%}.pixel-modal-body{display:flex;flex-direction:column;gap:16px}.pixel-mode-switcher{display:flex;gap:8px;flex-wrap:wrap}.pixel-designer-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;background:#0003;padding:8px 12px;border-radius:6px}.pixel-color-controls{display:flex;align-items:center;gap:8px}.pixel-color-controls label{font-size:.85rem}.pixel-color-picker{cursor:pointer;border:none;background:transparent;width:36px;height:36px}.pixel-palette{display:flex;gap:4px}.palette-swatch{width:20px;height:20px;border-radius:3px;cursor:pointer;border:1px solid #555}.pixel-action-buttons{display:flex;gap:6px}.pixel-action-buttons .btn{padding:4px 10px;font-size:.8rem}.pixel-canvas-area{display:flex;justify-content:center;align-items:center;padding:12px;background:#121212;border-radius:8px;border:1px solid var(--border-color)}.pixel-grid{display:grid;gap:4px}.pixel-grid.ws2812,.pixel-grid.max7219{grid-template-columns:repeat(8,28px);grid-template-rows:repeat(8,28px)}.pixel-grid.lcd{grid-template-columns:repeat(5,28px);grid-template-rows:repeat(8,28px);background:#8bc34a22;padding:12px;border-radius:6px}.pixel-cell{width:28px;height:28px;border:1px solid #333;cursor:crosshair;box-shadow:inset 0 0 4px #00000080}.pixel-cell.ws2812{border-radius:50%}.pixel-cell.mono{border-radius:4px;border-color:#444;cursor:pointer}.pixel-cell.lcd{border-radius:2px;border-color:#388e3c;cursor:pointer}.pixel-code-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.pixel-code-header-label{font-size:.8rem;color:var(--text-secondary);font-weight:700}.pixel-code-header .btn{padding:2px 8px;font-size:.75rem}.pixel-code-output{background:#181818;padding:10px;border-radius:6px;font-family:var(--font-mono);font-size:.8rem;overflow-x:auto;max-height:120px;color:#a9b7c6;margin:0}.circuit-viewer-container{display:flex;flex-direction:column;height:100%;width:100%;background:#16181d;color:#e1e4e8;padding:12px;box-sizing:border-box;overflow-y:auto}.circuit-header-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;border-bottom:1px solid #2d333b;padding-bottom:8px;flex-wrap:wrap;gap:8px}.circuit-title{margin:0;font-size:.95rem;color:#58a6ff;display:flex;align-items:center;gap:6px}.circuit-board-info{font-size:.75rem;color:#8b949e}.circuit-board-name{color:#c9d1d9}.circuit-sim-controls{display:flex;align-items:center;gap:6px;background:#1c2128;border:1px solid #30363d;border-radius:6px;padding:3px 8px}.circuit-btn-run{padding:3px 10px;font-size:.75rem;color:#fff;border:none;border-radius:4px;cursor:pointer;font-weight:700}.circuit-btn-reset{padding:3px 8px;font-size:.75rem;background:#21262d;color:#c9d1d9;border:1px solid #30363d;border-radius:4px;cursor:pointer}.circuit-sim-time{font-size:.75rem;font-family:monospace;color:#58a6ff;margin-left:4px}.circuit-view-controls{display:flex;align-items:center;gap:6px}.circuit-mode-switcher{display:flex;background:#21262d;border-radius:6px;padding:2px;border:1px solid #30363d}.circuit-btn-mode{padding:3px 8px;font-size:.75rem;border:none;border-radius:4px;cursor:pointer;font-weight:700}.circuit-drc-badge{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;border-radius:12px;font-size:.75rem;font-weight:700}.circuit-btn-export{padding:4px 10px;font-size:.75rem;cursor:pointer}.circuit-counts-bar{display:flex;justify-content:space-between;align-items:center;background:#1c2128;border:1px solid #30363d;border-radius:6px;padding:6px 10px;margin-bottom:10px;font-size:.75rem;flex-wrap:wrap;gap:6px}.circuit-counts-left{display:flex;gap:12px;color:#8b949e}.circuit-power-text{color:#3fb950}.circuit-state-summary{display:flex;gap:8px}.circuit-badge-active{color:#58a6ff;font-weight:700}.circuit-badge-matched{color:#3fb950;font-weight:700}.circuit-badge-mismatch{color:#d29922;font-weight:700}.circuit-badge-unconnected{color:#f85149;font-weight:700}.circuit-badge-unused{color:#8b949e}.circuit-pipelines-section{margin-bottom:10px}.circuit-pipelines-header{font-size:.75rem;font-weight:700;color:#58a6ff;margin-bottom:4px;display:flex;align-items:center;gap:4px}.circuit-pipeline-flow{display:flex;align-items:center;gap:8px;font-size:.75rem}.circuit-pipe-badge-source{background:#23863633;border:1px solid #2ea043;color:#3fb950;padding:2px 6px;border-radius:4px;font-weight:700}.circuit-pipe-arrow{color:#58a6ff}.circuit-pipe-badge-transform{background:#1f6feb33;border:1px solid #388bfd;color:#79c0ff;padding:2px 6px;border-radius:4px;font-family:monospace}.circuit-pipe-badge-sink{background:#a371f733;border:1px solid #8957e5;color:#d2a8ff;padding:2px 6px;border-radius:4px;font-weight:700}.circuit-pipe-detail{font-size:.7rem;color:#8b949e}.circuit-svg-viewport{flex:1;display:flex;justify-content:center;align-items:center;background:#0d1117;border-radius:8px;border:1px solid #30363d;padding:16px;min-height:330px;position:relative}.circuit-conn-area{margin-top:12px;background:#1f242c;border-radius:6px;padding:10px;border:1px solid #2d333b}.circuit-conn-header{font-size:.8rem;font-weight:700;color:#8b949e;margin-bottom:8px;display:flex;justify-content:space-between;align-items:center}.circuit-conn-hint{font-size:.7rem;color:#58a6ff}.circuit-empty-state{font-size:.75rem;color:#6e7681;font-style:italic}.circuit-conn-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:8px}.circuit-match-badge{font-size:.7rem}.circuit-match-matched{color:#3fb950;font-weight:700}.circuit-match-active{color:#58a6ff;font-weight:700}.circuit-match-mismatch{color:#d29922;font-weight:700}.circuit-match-unused{color:#8b949e}.circuit-conn-card{display:flex;flex-direction:column;gap:4px;background:#262c36;padding:8px 10px;border-radius:6px}.circuit-conn-card-header{display:flex;align-items:center;justify-content:space-between}.circuit-conn-card-name{display:flex;align-items:center;gap:6px}.circuit-wire-dot{width:10px;height:10px;border-radius:50%}.circuit-comp-name{font-size:.75rem;color:#e1e4e8}.circuit-control-row{margin-top:4px;display:flex;align-items:center;justify-content:space-between}.circuit-control-col{margin-top:4px;display:flex;flex-direction:column;gap:3px}.circuit-info-col{margin-top:5px;display:flex;flex-direction:column;gap:3px;font-size:.7rem;color:#8b949e}.circuit-info-row{display:flex;justify-content:space-between}.circuit-sensor-label{font-size:.7rem;color:#8b949e}.circuit-sensor-label-sm{font-size:.65rem;color:#8b949e}.circuit-readout{font-size:.7rem;color:#8b949e}.circuit-readout-mono{font-size:.75rem;color:#58a6ff;font-family:monospace;font-weight:700}.circuit-slider{height:4px;cursor:pointer}.circuit-btn-action{padding:2px 8px;font-size:.7rem;border-radius:4px;border:1px solid #30363d;color:#fff;cursor:pointer}.circuit-btn-action-sm{padding:1px 5px;font-size:.65rem;border-radius:3px;border:1px solid #30363d;background:#21262d;color:#fff;cursor:pointer}.circuit-btn-tare{padding:2px 6px;font-size:.65rem;border-radius:4px;border:1px solid #30363d;background:#21262d;color:#c9d1d9;cursor:pointer;align-self:flex-end}.circuit-btn-stop{margin-top:2px;padding:2px 6px;font-size:.65rem;border-radius:3px;border:1px solid #30363d;background:#21262d;color:#f85149;cursor:pointer;align-self:flex-end}.circuit-btn-step{padding:2px 6px;font-size:.65rem;border-radius:3px;border:1px solid #30363d;background:#21262d;color:#c9d1d9;cursor:pointer;align-self:flex-end}.circuit-btn-gesture{padding:1px 5px;font-size:.65rem;border:1px solid #30363d;background:#21262d;color:#fff;border-radius:3px;cursor:pointer}.circuit-gesture-row{display:flex;gap:4px}.circuit-keypad-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2px}.circuit-keypad-key{padding:1px;font-size:.65rem;background:#21262d;color:#fff;border:1px solid #30363d;border-radius:2px;cursor:pointer}.circuit-lcd-display{margin-top:5px;padding:4px 6px;background:#002b55;border:2px solid #004080;border-radius:4px;font-family:monospace;font-size:.72rem;color:#5ce1e6;text-shadow:0 0 3px #5ce1e6;line-height:1.2}.circuit-oled-display{margin-top:5px;padding:6px;background:#000;border:1.5px solid #30363d;border-radius:4px;font-family:monospace;font-size:.7rem;color:#00e5ff;text-shadow:0 0 2px #00e5ff;min-height:36px}.circuit-oled-placeholder{color:#484f58}.circuit-tm1637-display{margin-top:5px;padding:4px 8px;background:#0d1117;border:1px solid #30363d;border-radius:4px;font-family:monospace;font-size:1.15rem;color:#f36;text-shadow:0 0 6px #ff3366;letter-spacing:5px;font-weight:700;text-align:center}.circuit-neopixel-strip{margin-top:5px;display:flex;gap:3px;background:#0d1117;padding:5px 6px;border-radius:4px;border:1px solid #30363d;overflow-x:auto}.circuit-neopixel-dot{width:10px;height:10px;border-radius:50%;border:1px solid #30363d;flex-shrink:0}.circuit-matrix-display{margin-top:5px;display:grid;grid-template-columns:repeat(8,7px);gap:2px;background:#0d1117;padding:5px;border-radius:4px;border:1px solid #30363d;justify-content:center}.circuit-matrix-dot{width:7px;height:7px;border-radius:50%;border:1px solid #21262d}.circuit-semantic-row{font-size:.7rem;color:#8b949e;display:flex;justify-content:space-between;margin-top:2px}.circuit-pin-selector-row{display:flex;align-items:center;justify-content:space-between;margin-top:4px}.circuit-pin-label{font-size:.7rem;color:#8b949e}.circuit-pin-select{padding:2px 6px;font-size:.75rem;height:24px;min-width:90px;background:#16181d;color:#58a6ff;border:1px solid #384252;border-radius:4px}.circuit-unconnected-card{display:flex;flex-direction:column;gap:4px;background:#2d1818;border:1px dashed #f85149;padding:8px 10px;border-radius:6px}.circuit-unconnected-header{display:flex;align-items:center;justify-content:space-between}.circuit-unconnected-pin{font-size:.75rem;color:#ff7b72}.circuit-unconnected-badge{font-size:.7rem;color:#f85149;font-weight:700}.circuit-unconnected-desc{font-size:.7rem;color:#8b949e}.circuit-svg-canvas{max-height:380px}.circuit-btn-row{display:flex;gap:4px;align-self:flex-end}.circuit-btn-row-end{display:flex;justify-content:flex-end;margin-top:2px}.circuit-btn-row-end-gap{display:flex;gap:3px;justify-content:flex-end;margin-top:2px}.tri-highlight-socket{outline:2px solid var(--accent-warning)!important;outline-offset:1px;box-shadow:0 0 8px var(--accent-warning)!important;transition:outline .2s ease,box-shadow .2s ease}.tri-highlight-wire{outline:2px solid var(--accent-success)!important;outline-offset:2px;filter:brightness(1.3);transition:outline .2s ease,filter .2s ease}.tri-highlight-block{filter:drop-shadow(0 0 6px var(--accent-primary)) brightness(1.15);transition:filter .2s ease}.trace-illuminated{opacity:1!important;filter:brightness(1.2) drop-shadow(0 0 4px var(--accent-success));transition:opacity .3s ease,filter .3s ease}.trace-dimmed{opacity:.25!important;transition:opacity .3s ease}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;z-index:1000}.modal-overlay.open{display:flex}.modal-box{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:90%;max-width:600px;max-height:80vh;display:flex;flex-direction:column;box-shadow:var(--shadow-lg);overflow:hidden}.modal-header{padding:16px 20px;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.modal-body{padding:20px;overflow-y:auto;display:flex;flex-direction:column;gap:12px}.module-card{background:var(--bg-panel);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:12px 16px;display:flex;justify-content:space-between;align-items:center}.module-info h4{font-size:.95rem;margin-bottom:4px}.module-info p{font-size:.8rem;color:var(--text-secondary)}@media(pointer:coarse){.btn{min-height:44px;padding:10px 16px}.panel-tab{min-height:44px;padding:12px 14px}.select-control{min-height:44px;padding:10px 12px}.side-panel-toggle{width:36px;height:56px}}:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px;border-radius:var(--radius-sm)}:focus:not(:focus-visible){outline:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}@media(prefers-contrast:high){:root{--border-color: #64748b;--text-secondary: #cbd5e1}.btn{border-width:2px}.panel-tab.active{border-bottom-width:3px}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#475569}*{scrollbar-width:thin;scrollbar-color:var(--border-color) transparent}.code-viewer-toolbar{position:sticky;top:0;z-index:10}.toast{position:fixed;bottom:24px;right:24px;background:var(--bg-surface);border:1px solid var(--accent-primary);color:var(--text-primary);padding:10px 16px;border-radius:var(--radius-md);box-shadow:var(--shadow-lg);font-size:.85rem;z-index:2000;animation:toastSlideIn .3s ease forwards;max-width:360px;transition:transform .3s ease,opacity .3s ease}.toast.toast-removing{animation:toastSlideOut .3s ease forwards}@keyframes toastSlideIn{0%{opacity:0;transform:translate(40px)}to{opacity:1;transform:translate(0)}}@keyframes toastSlideOut{0%{opacity:1;transform:translate(0)}to{opacity:0;transform:translate(40px)}}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;padding:24px;text-align:center;color:var(--text-secondary)}.empty-state-icon{font-size:2.5rem;margin-bottom:12px;opacity:.6}.empty-state-title{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:6px}.empty-state-desc{font-size:.85rem;line-height:1.5;max-width:280px}.empty-state-action{margin-top:16px}@media(prefers-color-scheme:light){:root{--bg-main: #f1f5f9;--bg-surface: #ffffff;--bg-panel: #f8fafc;--bg-card: #e2e8f0;--text-primary: #0f172a;--text-secondary: #64748b;--border-color: #cbd5e1;--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1)}.btn:hover{background:#d1d5db;border-color:#9ca3af}.code-editor-pre{background:#1e1e1e;color:#d4d4d4}.serial-log{background:#0d1117;color:#38bdf8}.telemetry-canvas-wrapper{background:#1e293b}.robotics-arena-panel{background:#0d1117;color:#c9d1d9}.circuit-viewer-container{background:#16181d;color:#e1e4e8}.pixel-canvas-area{background:#121212}.pixel-code-output{background:#181818;color:#a9b7c6}}.loading-skeleton{position:relative;overflow:hidden}.loading-skeleton:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.05),transparent);animation:shimmer 1.5s infinite}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.loading-spinner{display:inline-block;width:16px;height:16px;border:2px solid var(--border-color);border-top-color:var(--accent-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;height:56px;background:var(--bg-surface);border-top:1px solid var(--border-color);z-index:90;align-items:stretch;justify-content:space-around;padding:0;margin:0}.bottom-nav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;background:transparent;border:none;color:var(--text-secondary);font-size:.65rem;font-weight:600;cursor:pointer;padding:4px 2px;transition:color .2s ease;min-height:44px}.bottom-nav-item .bottom-nav-icon{font-size:1.2rem;line-height:1}.bottom-nav-item.active{color:var(--accent-primary)}.bottom-nav-item:active{background:#ffffff0d}@media(max-width:767px){.blocklyToolboxDiv{max-height:40vh;overflow-y:auto}.blocklyTreeLabel{font-size:.8rem!important}.blocklyFlyoutBackground{fill-opacity:.95}.bottom-nav{display:flex}}.robotics-arena-canvas-wrapper canvas,.telemetry-canvas-wrapper canvas,.circuit-svg-canvas{touch-action:pinch-zoom}