:root{--color-primary: #2196F3;--color-primary-hover: #0b7dda;--color-success: #4CAF50;--color-success-hover: #45a049;--color-bg-main: #f5f5f5;--color-bg-sidebar: #f8f9fa;--color-bg-selected: #e8f4fd;--color-bg-hover: #e8e8e8;--color-bg-white: #ffffff;--color-bg-canvas: #2a2a2a;--color-bg-dark: #242424;--color-bg-very-dark: #1a1a1a;--color-bg-light: #f9f9f9;--color-bg-light-gray: #f0f0f0;--color-border-default: #ddd;--color-border-sidebar: #e0e0e0;--color-border-hover: #999;--color-border-light: #c0c0c0;--color-border-medium: #d0d0d0;--color-text-dark: #333;--color-text-medium: #666;--color-text-link: #646cff;--color-text-link-hover: #535bf2;--color-text-link-light: #747bff;--color-text-very-dark: #213547;--color-black: #000000;--color-white: #ffffff;--color-error: #f44336;--color-error-hover: #d32f2f;--color-shape-fill: #4CAF50;--color-shape-stroke: #2E7D32;--color-selection-border: #4CAF50;--color-selection-bg: rgba(100, 181, 246, .2);--color-red: #ff0000;--color-yellow: #ffff00;--color-green: #00ff00;--color-cyan: #00ffff;--color-blue: #0000ff;--color-magenta: #ff00ff}:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:var(--color-bg-dark);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:var(--color-text-link);text-decoration:inherit}a:hover{color:var(--color-text-link-hover)}body{margin:0;min-width:320px;min-height:100vh;background:var(--color-bg-canvas)}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:var(--color-bg-very-dark);cursor:pointer;transition:border-color .25s}button:hover{border-color:var(--color-text-link)}button:focus,button:focus-visible{outline:4px auto 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auto}.spinner-ring{position:absolute;width:100%;height:100%;border:4px solid transparent;border-radius:50%;animation:ring-spin 1.5s cubic-bezier(.68,-.55,.265,1.55) infinite}.spinner-ring:nth-child(1){background:conic-gradient(from 0deg,#2196f3,#4caf50,#ffc107,#2196f3);-webkit-mask:radial-gradient(farthest-side,transparent 70%,white 70%);mask:radial-gradient(farthest-side,transparent 70%,white 70%);animation-delay:0s}.spinner-ring:nth-child(2){background:conic-gradient(from 120deg,#ff9800,#e91e63,#9c27b0,#ff9800);-webkit-mask:radial-gradient(farthest-side,transparent 76%,white 76%);mask:radial-gradient(farthest-side,transparent 76%,white 76%);animation-delay:.2s;animation-duration:1.8s}.spinner-ring:nth-child(3){background:conic-gradient(from 240deg,#00bcd4,#8bc34a,#cddc39,#00bcd4);-webkit-mask:radial-gradient(farthest-side,transparent 82%,white 82%);mask:radial-gradient(farthest-side,transparent 82%,white 82%);animation-delay:.4s;animation-duration:2s}@keyframes ring-spin{0%{transform:rotate(0);border-width:4px}50%{transform:rotate(180deg);border-width:8px}to{transform:rotate(360deg);border-width:4px}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.dashboard{min-height:100vh;background:var(--color-bg-dark);padding:20px 30px}.dashboard-header{max-width:1400px;margin:0 auto 24px;display:flex;justify-content:space-between;align-items:center}.dashboard-actions{display:flex;gap:12px;align-items:center}.dashboard-title{font-size:28px;font-weight:700;color:var(--color-white);margin:0}.logout-btn{background:transparent;color:var(--color-text-medium);border:1px solid var(--color-border-sidebar);padding:10px 20px;border-radius:6px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}.logout-btn:hover{color:var(--color-white);border-color:var(--color-primary);background:#667eea1a}.create-new-btn{background:var(--color-primary);color:var(--color-white);border:none;padding:10px 20px;border-radius:6px;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s}.create-new-btn:hover{background:var(--color-primary-hover)}.dashboard-content{max-width:1400px;margin:0 auto}.dashboard-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:400px;color:var(--color-text-medium)}.dashboard-empty .empty-icon{font-size:80px;margin-bottom:20px;color:var(--color-text-dark)}.dashboard-empty h3{color:var(--color-white);font-size:24px;margin:0 0 10px}.dashboard-empty p{color:var(--color-text-medium);margin-bottom:30px}.create-first-btn{background:var(--color-primary);color:var(--color-white);border:none;padding:14px 28px;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:background 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var(--color-border-sidebar)}.toolbar-group:last-child{border-right:none}.toolbar-btn{padding:4px 10px;border:1px solid var(--color-border-default);background:#fff;border-radius:4px;cursor:pointer;font-size:13px;transition:all .2s;min-height:28px;display:flex;align-items:center;justify-content:center;color:var(--color-text-dark)}.toolbar-btn svg{color:var(--color-text-dark)}.color-picker-btn{position:relative;overflow:hidden}.color-picker-btn svg{color:#fff;position:relative;z-index:1}.toolbar-btn strong,.toolbar-btn em{font-weight:400;font-style:normal}.toolbar-btn:hover:not(:disabled):not(.active){background:var(--color-bg-main)}.toolbar-btn:disabled,.font-size-input:disabled{opacity:.4;cursor:not-allowed}.toolbar-btn.active{background:var(--color-primary);color:#fff;border-color:var(--color-primary);opacity:1}.toolbar-btn.active:hover:not(:disabled){background:var(--color-primary-hover);border-color:var(--color-primary-hover)}.toolbar-btn.active-muted{background:var(--color-bg-light-gray);color:var(--color-text-dark);border-color:var(--color-border-medium);opacity:1}.toolbar-btn.active-muted:hover:not(:disabled){background:var(--color-border-sidebar);border-color:var(--color-border-light)}.toolbar-btn.icon{min-width:28px;padding:4px 6px;font-size:18px;font-weight:700;color:var(--color-text-medium)}.font-size-input{width:45px;padding:4px 6px;border:1px solid var(--color-border-default);border-radius:4px;text-align:center;font-size:13px}.font-select{padding:4px 30px 4px 8px;border:1px solid var(--color-border-default);border-radius:4px;font-size:13px;background:#fff;cursor:pointer;color:var(--color-text-dark);min-width:150px;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M10.293 3.293L6 7.586 1.707 3.293A1 1 0 00.293 4.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 8px center}.font-select:focus{outline:none;border-color:var(--color-primary)}.color-picker{width:36px;height:24px;border:1px solid var(--color-border-default);border-radius:4px;cursor:pointer}.panel{position:fixed;left:200px;top:40px;width:300px;height:100vh;background:#fff;border-right:1px solid var(--color-border-default);box-shadow:2px 0 8px #0000001a;z-index:100;display:flex;flex-direction:column}.panel-header{display:flex;justify-content:space-between;align-items:center;padding:16px;border-bottom:1px solid var(--color-border-sidebar)}.panel-title{font-size:16px;font-weight:600;color:var(--color-text-dark);margin:0}.panel-close{width:32px;height:32px;border:none;background:transparent;cursor:pointer;font-size:20px;color:var(--color-text-medium);display:flex;align-items:center;justify-content:center;border-radius:4px;transition:background .2s}.panel-close:hover{background:var(--color-bg-main)}.panel-content{flex:1;overflow-y:auto;padding:12px}.panel-item{display:flex;align-items:center;gap:12px;width:100%;padding:12px;border:none;background:transparent;cursor:pointer;border-radius:6px;transition:background .2s;text-align:left;font-size:15px;color:var(--color-text-dark);font-weight:400}.panel-item:hover{background:var(--color-bg-main)}.panel-item span:first-child{font-size:20px;min-width:24px}.panel-item span:last-child{font-weight:500;color:var(--color-text-dark)}.font-panel-container{display:flex;flex-direction:column;gap:0;padding:0;margin:0}.font-search-container{padding:12px;background:#fff;border-bottom:1px solid var(--color-border-sidebar)}.font-search-input{width:90%;padding:8px 12px;border:1px solid var(--color-border-default);border-radius:6px;font-size:14px;outline:none;transition:border-color .2s}.font-search-input:focus{border-color:var(--color-primary)}.font-list-container{flex:1;overflow-y:auto;padding:12px}.font-no-results{padding:20px;text-align:center;color:var(--color-border-hover);font-size:14px}.font-option{display:block;width:100%;padding:12px 16px;margin:0 0 8px;border:1px solid var(--color-border-sidebar);background:#fff;text-align:left;cursor:pointer;border-radius:6px;transition:background .2s,border-color .2s;font-size:14px;color:#000}.font-option:last-child{margin-bottom:0}.font-option:hover{background:var(--color-bg-main);border-color:var(--color-border-medium)}.color-panel{display:flex;flex-direction:column;gap:16px}.color-picker-container{display:flex;gap:12px;height:200px}.color-grid{flex:1;position:relative;border-radius:8px;cursor:crosshair;overflow:hidden;background:linear-gradient(to right,var(--color-white),transparent),linear-gradient(to bottom,transparent,var(--color-black))}.color-pointer{position:absolute;width:16px;height:16px;border:2px solid white;border-radius:50%;transform:translate(-50%,-50%);box-shadow:0 0 4px #00000080;pointer-events:none}.hue-slider{width:20px;height:100%;background:linear-gradient(to bottom,var(--color-red),var(--color-yellow),var(--color-green),var(--color-cyan),var(--color-blue),var(--color-magenta),var(--color-red));border-radius:8px;cursor:pointer;position:relative}.hue-pointer{position:absolute;width:100%;height:4px;background:#fff;border:2px solid var(--color-text-dark);box-shadow:0 0 2px #0000004d;transform:translateY(-50%);pointer-events:none}.current-color-preview{width:100%;height:50px;border-radius:8px;border:2px solid var(--color-border-default)}.color-values{display:flex;flex-direction:column;gap:12px}.color-value-group{display:flex;flex-direction:column;gap:4px}.color-value-group label{font-size:12px;font-weight:500;color:var(--color-text-medium);text-transform:uppercase}.color-input{padding:6px 8px;border:1px solid var(--color-border-default);border-radius:4px;font-size:13px}.rgb-input{width:70px}.color-value-row{display:flex;gap:8px}.layers-panel{position:fixed;right:0;top:80px;width:300px;max-height:calc(100vh - 40px);background:var(--color-bg-white);border:1px solid var(--color-border-sidebar);border-radius:8px;display:flex;flex-direction:column;z-index:50;box-shadow:-2px 0 8px #0000001a;transition:width .3s ease}@media(max-width:1200px){.layers-panel{width:200px}}@media(max-width:1000px){.layers-panel{width:180px}}.layers-panel.collapsed{width:60px;max-height:100px}.layers-header-content{display:flex;align-items:center;gap:8px}.layers-icon{font-size:18px;min-width:20px}.layers-panel-header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--color-border-sidebar)}.layers-panel-header h3{margin:0;font-size:14px;font-weight:600;color:var(--color-text-dark);text-transform:uppercase}.layers-collapse-btn{background:none;border:none;cursor:pointer;font-size:12px;color:var(--color-text-medium);padding:4px}.layers-list{flex:1;overflow-y:auto;padding:8px}.layer-item{display:flex;align-items:center;gap:8px;padding:8px;margin-bottom:4px;border:1px solid var(--color-border-sidebar);border-radius:4px;cursor:move;background:var(--color-bg-white);transition:all .2s;position:relative}.layer-item:hover{background:var(--color-bg-main)}.layer-item.selected{background:var(--color-bg-selected);border-color:var(--color-primary)}.layer-item.dragging{opacity:.5}.layer-item.drag-over{border-color:var(--color-primary);background:var(--color-bg-selected);box-shadow:0 0 0 2px var(--color-primary)}.layer-item.drag-over:after{content:"← Insert here";position:absolute;top:50%;right:10px;transform:translateY(-50%);font-size:11px;color:var(--color-primary);font-weight:600;pointer-events:none}.layer-preview{width:40px;height:40px;background:var(--color-bg-light-gray);border:1px solid var(--color-border-default);border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0;cursor:move}.layer-content{flex:1;min-width:0}.layer-name{font-size:13px;color:var(--color-text-dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}.layer-name-input{width:95%;padding:4px 8px;border:1px solid var(--color-primary);border-radius:4px;font-size:13px;background:var(--color-bg-white);color:#000;outline:none}.layer-delete-btn{background:none;border:none;cursor:pointer;font-size:16px;opacity:.5;padding:4px;transition:opacity .2s}.layer-delete-btn:hover{opacity:1}.confirm-dialog-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.confirm-dialog{background:var(--color-bg-white);padding:24px;border-radius:8px;box-shadow:0 4px 12px #00000026;max-width:400px;width:90%}.confirm-dialog h3{margin:0 0 12px;font-size:18px;font-weight:600;color:var(--color-text-dark)}.confirm-dialog p{margin:0 0 20px;font-size:14px;color:var(--color-text-medium)}.confirm-dialog-buttons{display:flex;gap:8px;justify-content:flex-end}.confirm-dialog-buttons button{padding:8px 16px;border:1px solid var(--color-border-default);background:var(--color-bg-white);color:var(--color-text-dark);border-radius:4px;cursor:pointer;font-size:14px;transition:all .2s}.confirm-dialog-buttons button:hover{background:var(--color-bg-main)}.confirm-dialog-buttons .confirm-btn{background:var(--color-error);color:#fff;border-color:var(--color-error)}.confirm-dialog-buttons .confirm-btn:hover{background:var(--color-error-hover);border-color:var(--color-error-hover)}.undo-redo-toolbar{display:flex;gap:6px}.undo-redo-btn{width:28px;height:28px;border:1px solid var(--color-border-default);background:var(--color-bg-white);border-radius:4px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;color:var(--color-text-dark);padding:0}.undo-redo-btn svg{width:14px;height:14px}.undo-redo-btn:hover:not(:disabled){background:var(--color-bg-main);border-color:var(--color-primary)}.undo-redo-btn:active:not(:disabled){background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.undo-redo-btn:disabled{opacity:.4;cursor:not-allowed}.spinning{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.comment-panel{position:fixed;bottom:20px;right:20px;z-index:1000}.comment-toggle{width:56px;height:56px;border-radius:50%;background:#007bff;border:none;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px #007bff4d;transition:all .3s ease;position:relative}.comment-toggle:hover{background:#0056b3;transform:scale(1.05);box-shadow:0 6px 16px #007bff66}.comment-toggle.open{background:#6c757d}.comment-toggle.open:hover{background:#545b62}.comment-count{position:absolute;top:-8px;right:-8px;background:#dc3545;color:#fff;border-radius:50%;width:20px;height:20px;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;border:2px solid white}.comment-chat{position:absolute;bottom:70px;right:0;padding:1px;width:320px;height:40vh;max-height:500px;min-height:300px;background:#fff;border-radius:12px;box-shadow:0 8px 32px 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