:root{--primary:#1976d2;--primary-light:#42a5f5;--primary-dark:#1565c0;--secondary:#9c27b0;--bg-color:#f5f7fa;--panel-bg:#fff;--text-main:#2c3e50;--text-muted:#7f8c8d;--border-color:#e0e6ed;--shadow-sm:0 2px 4px #0000000d;--shadow-md:0 4px 12px #00000014;--shadow-lg:0 8px 24px #0000001f}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-main);min-height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5}.app-container{flex-direction:column;height:100vh;display:flex}.header{background:var(--panel-bg);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow-sm);justify-content:space-between;align-items:center;padding:1rem 2rem;display:flex}.header h1{color:var(--primary);align-items:center;gap:.5rem;font-size:1.5rem;font-weight:700;display:flex}.header-actions{align-items:center;gap:.75rem;display:flex}.header-actions .danger-btn{font-size:.8rem}.tabs-nav{background:var(--panel-bg);border-bottom:1px solid var(--border-color);gap:2rem;padding:0 2rem;display:flex}.tab-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-bottom:3px solid #0000;padding:1rem 0;font-size:.95rem;font-weight:600;transition:all .2s}.tab-btn:hover{color:var(--primary)}.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary)}.main-content{flex:1;padding:2rem;overflow-y:auto}.tab-content{animation:.3s fadeIn;display:none}.tab-content.active{flex-direction:column;gap:2rem;display:flex}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.editor-grid{grid-template-columns:350px 1fr 300px;align-items:start;gap:2rem;display:grid}.panel{background:var(--panel-bg);border:1px solid var(--border-color);box-shadow:var(--shadow-md);border-radius:12px;padding:1.5rem}.panel-title{color:var(--text-main);border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;margin-bottom:1.25rem;padding-bottom:.75rem;font-size:1rem;font-weight:700;display:flex}.control-group{margin-bottom:1.5rem}.control-group label{color:var(--text-muted);margin-bottom:.5rem;font-size:.85rem;font-weight:600;display:block}.text-input,.dimension-select{border:1px solid var(--border-color);background:#f8fafc;border-radius:8px;width:100%;padding:.75rem;font-family:inherit;font-size:.9rem;transition:border-color .2s}.text-input:focus,.dimension-select:focus{border-color:var(--primary);background:#fff;outline:none}.slider-group{margin-bottom:1rem}.slider-header{justify-content:space-between;margin-bottom:.25rem;display:flex}.slider-header span{font-size:.8rem;font-weight:500}.slider-value{color:var(--primary);font-weight:700}input[type=range]{appearance:none;background:#e2e8f0;border-radius:3px;width:100%;height:6px}input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--primary);cursor:pointer;border-radius:50%;width:18px;height:18px;box-shadow:0 2px 4px #0003}button{cursor:pointer;border:none;border-radius:8px;padding:.6rem 1.2rem;font-family:inherit;font-weight:600;transition:all .2s}.primary-btn{background:var(--primary);color:#fff;box-shadow:0 2px 6px #1976d24d}.primary-btn:hover:not(:disabled){background:var(--primary-dark);transform:translateY(-1px)}.secondary-btn{color:var(--text-main);background:#f1f5f9}.secondary-btn:hover:not(:disabled){background:#e2e8f0}.danger-btn{color:#dc2626;background:#fee2e2}button:disabled{opacity:.5;cursor:not-allowed}.canvas-container{flex-direction:column;gap:1rem;display:flex}.canvas-wrapper{background:#cbd5e1;border-radius:8px;place-items:center;min-height:500px;padding:1rem;display:grid;position:relative;box-shadow:inset 0 2px 8px #0000001a}#mosaicCanvas,#overlayCanvas,#crosshairCanvas{max-width:100%;height:auto;box-shadow:var(--shadow-lg);border-radius:4px;grid-area:1/1}.upload-label{border:2px dashed var(--border-color);cursor:pointer;color:var(--text-muted);background:#f8fafc;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:.5rem;padding:1.5rem;transition:all .2s;display:flex}.upload-label:hover{border-color:var(--primary);color:var(--primary);background:#f0f7ff}.upload-label svg{color:var(--text-muted);transition:color .2s}.upload-label:hover svg{color:var(--primary)}.upload-label span{font-size:.9rem;font-weight:500}.data-table{border-collapse:collapse;width:100%;margin-top:1rem}.data-table th,.data-table td{text-align:left;border-bottom:1px solid var(--border-color);padding:1rem}.data-table th{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;background:#f8fafc;font-size:.8rem}.data-table tr:hover{background:#f1f5f9}.badge{border-radius:999px;padding:.25rem .6rem;font-size:.75rem;font-weight:700}.badge-blue{color:#1e40af;background:#dbeafe}.badge-green{color:#166534;background:#dcfce7}.color-options,.paint-palette{grid-template-columns:repeat(auto-fill,minmax(32px,1fr));gap:8px;display:grid}.color-btn,.brush-btn{cursor:pointer;background-color:var(--btn-color);border:2px solid #fff;border-radius:6px;width:32px;height:32px;transition:transform .1s;box-shadow:0 1px 3px #0003}.piece-counts{flex-direction:column;gap:.5rem;max-height:400px;padding-right:.5rem;display:flex;overflow-y:auto}.piece-stat{background:#f8fafc;border-radius:6px;grid-template-columns:32px 60px 80px 1fr;align-items:center;gap:1rem;padding:.5rem;font-size:.85rem;display:grid}.piece-color{border-radius:4px;width:24px;height:24px;box-shadow:0 1px 2px #0000001a}.piece-code{color:var(--text-main);text-align:center;background:#e2e8f0;border-radius:4px;padding:2px 6px;font-weight:700}.piece-hex{color:var(--text-muted);font-family:monospace}.piece-number{color:var(--primary);text-align:right;font-weight:700}@media (width<=1200px){.editor-grid{grid-template-columns:1fr}.canvas-container{order:-1}}@media (width<=768px){.header{text-align:center;flex-direction:column;gap:1rem}.header-actions{flex-wrap:wrap;justify-content:center}.tabs-nav{gap:1rem;padding:0 1rem;overflow-x:auto}.main-content{padding:1rem}}.color-btn.active,.brush-btn.active{border-color:var(--primary);transform:scale(1.2);box-shadow:0 0 8px #1976d266}#hoverTooltip{color:#fff;pointer-events:none;z-index:9999;box-shadow:var(--shadow-lg);background:#1e293b;border-radius:6px;padding:6px 12px;font-size:.8rem;position:fixed}.search-bar{gap:1rem;margin-bottom:2rem;display:flex}.search-input{flex:1}.placeholder-text{text-align:center;color:var(--text-muted)}