:root{--bg-primary: #0d1117;--bg-secondary: #161b22;--bg-tertiary: #21262d;--bg-elevated: #1c2128;--bg-canvas: #0d1117;--text-primary: #e6edf3;--text-secondary: #8b949e;--text-tertiary: #6e7681;--text-link: #58a6ff;--border-default: #30363d;--border-muted: #21262d;--border-accent: #58a6ff;--accent-primary: #58a6ff;--accent-secondary: #3fb950;--accent-warning: #d29922;--accent-danger: #f85149;--accent-purple: #bc8cff;--accent-pink: #f778ba;--glass-bg: rgba(22, 27, 34, .85);--glass-border: rgba(48, 54, 61, .6);--glass-shadow: 0 8px 32px rgba(0, 0, 0, .4);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-hand: "Caveat", cursive;--font-mono: "JetBrains Mono", "Consolas", monospace;--toolbar-height: 48px;--panel-width: 220px;--transition-fast: .12s ease;--transition-normal: .2s ease;--transition-slow: .35s ease}[data-theme=light]{--bg-primary: #ffffff;--bg-secondary: #f6f8fa;--bg-tertiary: #eaeef2;--bg-elevated: #ffffff;--bg-canvas: #ffffff;--text-primary: #1f2328;--text-secondary: #656d76;--text-tertiary: #8b949e;--text-link: #0969da;--border-default: #d0d7de;--border-muted: #eaeef2;--border-accent: #0969da;--accent-primary: #0969da;--accent-secondary: #1a7f37;--glass-bg: rgba(255, 255, 255, .88);--glass-border: rgba(208, 215, 222, .6);--glass-shadow: 0 8px 32px rgba(0, 0, 0, .08)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;height:100%;overflow:hidden;font-family:var(--font-sans);font-size:13px;color:var(--text-primary);background:var(--bg-canvas);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-user-select:none;user-select:none}#toolbar{position:fixed;top:0;left:0;right:0;height:var(--toolbar-height);display:flex;align-items:center;gap:4px;padding:0 12px;background:var(--glass-bg);backdrop-filter:blur(16px) saturate(180%);-webkit-backdrop-filter:blur(16px) saturate(180%);border-bottom:1px solid var(--glass-border);box-shadow:var(--glass-shadow);z-index:1000}.toolbar-group{display:flex;align-items:center;gap:2px}.toolbar-brand{margin-right:8px}.logo{display:flex;align-items:center;gap:6px;font-size:15px;font-weight:700;letter-spacing:-.3px;color:var(--text-primary);white-space:nowrap}.logo svg{color:var(--accent-primary);flex-shrink:0}.tool-divider{width:1px;height:24px;background:var(--border-default);margin:0 4px;opacity:.5}.tool-btn{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border:1px solid transparent;border-radius:var(--radius-md);background:transparent;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);position:relative}.tool-btn:hover{background:var(--bg-tertiary);color:var(--text-primary);border-color:var(--border-default)}.tool-btn.active{background:var(--accent-primary);color:#fff;border-color:var(--accent-primary);box-shadow:0 0 12px #58a6ff4d}.tool-btn.active:hover{background:var(--accent-primary);filter:brightness(1.1)}.action-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast)}.action-btn:hover{background:var(--bg-tertiary);color:var(--text-primary)}.action-btn:disabled{opacity:.3;cursor:default}.action-btn:disabled:hover{background:transparent;color:var(--text-secondary)}.export-btn{display:flex;align-items:center;gap:4px;padding:5px 10px;border:1px solid var(--border-default);border-radius:var(--radius-sm);background:var(--bg-tertiary);color:var(--text-secondary);font-size:11px;font-weight:600;cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;font-family:var(--font-sans);text-transform:uppercase;letter-spacing:.5px}.export-btn:hover{background:var(--bg-elevated);color:var(--text-primary);border-color:var(--accent-primary)}.export-btn.export-gif{border-color:var(--accent-pink);color:var(--accent-pink)}.export-btn.export-gif:hover{background:#f778ba1a}.toolbar-end{margin-left:auto}#properties-panel{position:fixed;top:calc(var(--toolbar-height) + 12px);left:12px;width:var(--panel-width);max-height:calc(100vh - var(--toolbar-height) - 24px);overflow-y:auto;background:var(--glass-bg);backdrop-filter:blur(16px) saturate(180%);-webkit-backdrop-filter:blur(16px) saturate(180%);border:1px solid var(--glass-border);border-radius:var(--radius-lg);box-shadow:var(--glass-shadow);z-index:500;padding:4px}#properties-panel::-webkit-scrollbar{width:4px}#properties-panel::-webkit-scrollbar-track{background:transparent}#properties-panel::-webkit-scrollbar-thumb{background:var(--border-default);border-radius:2px}.panel-section{padding:10px 12px;border-bottom:1px solid var(--border-muted)}.panel-section:last-child{border-bottom:none}.panel-title{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--text-tertiary);margin-bottom:10px;display:flex;align-items:center;justify-content:space-between}.prop-group{margin-bottom:10px}.prop-group:last-child{margin-bottom:0}.prop-label{display:block;font-size:11px;font-weight:500;color:var(--text-secondary);margin-bottom:5px}.color-row{display:flex;align-items:center;gap:6px}.color-input{width:28px;height:28px;border:2px solid var(--border-default);border-radius:var(--radius-sm);padding:0;cursor:pointer;background:transparent;flex-shrink:0}.color-input::-webkit-color-swatch-wrapper{padding:2px}.color-input::-webkit-color-swatch{border:none;border-radius:3px}.color-presets{display:flex;gap:3px;flex-wrap:wrap}.color-swatch{width:20px;height:20px;border:1.5px solid var(--border-default);border-radius:4px;cursor:pointer;transition:all var(--transition-fast);padding:0}.color-swatch:hover{transform:scale(1.15);border-color:var(--text-primary)}.color-swatch.active{border-color:var(--accent-primary);box-shadow:0 0 0 2px var(--accent-primary)}.transparent-swatch{background:linear-gradient(45deg,#ccc 25%,transparent 25%),linear-gradient(-45deg,#ccc 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#ccc 75%),linear-gradient(-45deg,transparent 75%,#ccc 75%)!important;background-size:8px 8px!important;background-position:0 0,0 4px,4px -4px,-4px 0px!important}.btn-row{display:flex;gap:3px}.opt-btn{display:flex;align-items:center;justify-content:center;min-width:32px;height:30px;padding:0 6px;border:1px solid var(--border-default);border-radius:var(--radius-sm);background:var(--bg-secondary);color:var(--text-secondary);font-size:12px;cursor:pointer;transition:all var(--transition-fast)}.opt-btn:hover{background:var(--bg-tertiary);color:var(--text-primary)}.opt-btn.active{background:var(--accent-primary);color:#fff;border-color:var(--accent-primary)}.slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:4px;background:var(--bg-tertiary);border-radius:2px;outline:none;margin:6px 0 2px}.slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:14px;height:14px;border-radius:50%;background:var(--accent-primary);cursor:pointer;border:2px solid var(--bg-primary);box-shadow:0 0 4px #58a6ff4d;transition:transform var(--transition-fast)}.slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.slider::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--accent-primary);cursor:pointer;border:2px solid var(--bg-primary)}.slider-value{font-size:10px;color:var(--text-tertiary);font-weight:600;font-family:var(--font-mono)}.toggle-switch{position:relative;display:inline-block;width:36px;height:20px;cursor:pointer}.toggle-switch input{opacity:0;width:0;height:0}.toggle-slider{position:absolute;top:0;left:0;right:0;bottom:0;background:var(--bg-tertiary);border-radius:10px;transition:var(--transition-normal);border:1px solid var(--border-default)}.toggle-slider:before{content:"";position:absolute;width:14px;height:14px;left:2px;bottom:2px;background:var(--text-secondary);border-radius:50%;transition:var(--transition-normal)}.toggle-switch input:checked+.toggle-slider{background:var(--accent-primary);border-color:var(--accent-primary)}.toggle-switch input:checked+.toggle-slider:before{transform:translate(16px);background:#fff}#canvas-container{position:fixed;top:var(--toolbar-height);left:0;right:0;bottom:0;overflow:hidden;background:var(--bg-canvas)}#canvas{display:block;width:100%;height:100%;cursor:crosshair}#canvas.cursor-default{cursor:default}#canvas.cursor-grab{cursor:grab}#canvas.cursor-grabbing{cursor:grabbing}#canvas.cursor-crosshair{cursor:crosshair}#canvas.cursor-move{cursor:move}#canvas.cursor-text{cursor:text}#canvas.cursor-nwse{cursor:nwse-resize}#canvas.cursor-nesw{cursor:nesw-resize}#canvas.cursor-ns{cursor:ns-resize}#canvas.cursor-ew{cursor:ew-resize}.text-editor{position:absolute;background:transparent;border:2px solid var(--accent-primary);border-radius:4px;color:var(--text-primary);font-family:var(--font-hand);font-size:20px;line-height:1.4;padding:4px 8px;resize:none;outline:none;overflow:hidden;min-width:60px;min-height:30px;z-index:600;box-shadow:0 0 0 3px #58a6ff26}#zoom-controls{position:fixed;bottom:16px;left:calc(var(--panel-width) + 28px);display:flex;align-items:center;gap:2px;padding:4px;background:var(--glass-bg);backdrop-filter:blur(16px) saturate(180%);-webkit-backdrop-filter:blur(16px) saturate(180%);border:1px solid var(--glass-border);border-radius:var(--radius-md);box-shadow:var(--glass-shadow);z-index:500}.zoom-btn{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);font-size:16px;font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.zoom-btn:hover{background:var(--bg-tertiary);color:var(--text-primary)}.zoom-level{display:flex;align-items:center;justify-content:center;min-width:50px;height:28px;padding:0 6px;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);font-size:11px;font-weight:600;font-family:var(--font-mono);cursor:pointer;transition:all var(--transition-fast)}.zoom-level:hover{background:var(--bg-tertiary);color:var(--text-primary)}#help-indicator{position:fixed;bottom:16px;right:16px;z-index:500}.shortcut-hint{font-size:11px;color:var(--text-tertiary);padding:4px 10px;background:var(--glass-bg);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--glass-border);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast)}.shortcut-hint:hover{color:var(--text-secondary);border-color:var(--border-default)}.dialog{border:1px solid var(--glass-border);border-radius:var(--radius-xl);background:var(--glass-bg);backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);box-shadow:0 24px 80px #00000080;color:var(--text-primary);padding:28px;max-width:480px;width:90vw}.dialog::backdrop{background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.dialog h2{font-size:18px;font-weight:700;margin-bottom:20px}.dialog-close{position:absolute;top:16px;right:16px;width:28px;height:28px;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.dialog-close:hover{background:var(--bg-tertiary);color:var(--text-primary)}.shortcuts-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px 20px}.shortcut-row{display:flex;align-items:center;gap:10px;padding:4px 0}.shortcut-row kbd{display:inline-flex;align-items:center;justify-content:center;min-width:24px;height:22px;padding:0 6px;background:var(--bg-tertiary);border:1px solid var(--border-default);border-radius:4px;font-family:var(--font-mono);font-size:10px;color:var(--text-secondary);white-space:nowrap}.shortcut-row span{font-size:12px;color:var(--text-secondary)}#gif-progress{position:fixed;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:center;background:#000000b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:2000}.gif-progress-content{background:var(--bg-secondary);border:1px solid var(--border-default);border-radius:var(--radius-xl);padding:32px 40px;text-align:center;min-width:300px}.gif-progress-content h3{font-size:16px;margin:16px 0 12px}.progress-bar{width:100%;height:6px;background:var(--bg-tertiary);border-radius:3px;overflow:hidden;margin-bottom:8px}.progress-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--accent-primary),var(--accent-pink));border-radius:3px;transition:width .3s ease}#gif-progress-text{font-size:12px;color:var(--text-secondary);margin-bottom:16px}.cancel-btn{padding:6px 20px;border:1px solid var(--border-default);border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);font-size:12px;cursor:pointer;font-family:var(--font-sans);transition:all var(--transition-fast)}.cancel-btn:hover{background:var(--accent-danger);color:#fff;border-color:var(--accent-danger)}.spinner{width:36px;height:36px;border:3px solid var(--border-default);border-top-color:var(--accent-primary);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto}@keyframes spin{to{transform:rotate(360deg)}}#toast-container{position:fixed;bottom:60px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;gap:8px;z-index:3000;pointer-events:none}.toast{padding:10px 20px;background:var(--bg-secondary);border:1px solid var(--border-default);border-radius:var(--radius-md);color:var(--text-primary);font-size:13px;font-weight:500;box-shadow:0 8px 24px #0000004d;animation:toastIn .3s ease,toastOut .3s ease 2.7s forwards;pointer-events:auto;white-space:nowrap}.toast.success{border-left:3px solid var(--accent-secondary)}.toast.error{border-left:3px solid var(--accent-danger)}@keyframes toastIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes toastOut{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-12px)}}.hidden{display:none!important}#canvas-container.show-grid{background-image:radial-gradient(circle,var(--border-muted) 1px,transparent 1px);background-size:20px 20px}.selection-box{position:absolute;border:1.5px dashed var(--accent-primary);background:#58a6ff14;pointer-events:none;z-index:400}@media(max-width:900px){#properties-panel{display:none}#zoom-controls{left:16px}}@media(max-width:700px){.toolbar-brand,.toolbar-actions,.export-btn span{display:none}}@keyframes dashFlow{to{stroke-dashoffset:-20}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}#toolbar{animation:fadeIn .4s ease}#properties-panel{animation:fadeIn .5s ease .1s both}#zoom-controls{animation:fadeIn .5s ease .2s both}