*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background:#f5f7fa;color:#333;min-height:100vh;display:flex;flex-direction:column}header{text-align:center;padding:2rem;background:#fff;border-bottom:1px solid #e0e0e0}header .logo{max-width:280px;height:auto;margin-bottom:1rem}header h1{font-size:2.5rem;margin-bottom:.5rem;color:#333}header p{color:#666;font-size:1.1rem}main{display:flex;padding:2rem;gap:2rem;max-width:1600px;margin:0 auto}.controls-panel{flex:0 0 320px;background:#fff;border-radius:12px;padding:1.5rem;border:1px solid #e0e0e0;box-shadow:0 2px 8px #00000014;height:fit-content;position:sticky;top:1rem}.control-group{margin-bottom:1.5rem}.control-group h3{font-size:1rem;margin-bottom:.75rem;color:#5a6872}input[type=file]{width:100%;padding:.5rem;background:#f5f7fa;border:1px solid #ddd;border-radius:6px;color:#333;margin-bottom:.5rem}select{width:100%;padding:.75rem;background:#fff;border:1px solid #ddd;border-radius:6px;color:#333;font-size:1rem;cursor:pointer}select optgroup{background:#fff;color:#5a6872;font-weight:700}select option{background:#fff;color:#333;padding:.5rem}button{width:100%;padding:.75rem 1rem;background:#5a6872;border:none;border-radius:6px;color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;margin-bottom:.5rem}button:hover{background:#4a5860;box-shadow:0 2px 8px #5a68724d}button:active{transform:translateY(0)}.image-panel{flex:1;display:flex;gap:2rem;flex-wrap:wrap;justify-content:center}.image-container{background:#fff;border-radius:12px;padding:1rem;border:1px solid #e0e0e0;box-shadow:0 2px 8px #00000014;text-align:center;flex:1;min-width:300px;max-width:600px}.image-container h3{margin-bottom:1rem;color:#5a6872}canvas{max-width:100%;height:auto;border-radius:8px;background:#f8f9fa;border:2px solid #e0e0e0}.image-info{margin-top:.75rem;font-size:.85rem;color:#666}.param-control{margin-bottom:1rem}.param-control label{display:block;margin-bottom:.5rem;font-size:.9rem;color:#555}.param-control input[type=range]{width:100%;height:6px;background:#e0e0e0;border-radius:3px;outline:none;-webkit-appearance:none}.param-control input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;background:#5a6872;border-radius:50%;cursor:pointer}.param-control .value-display{text-align:right;font-size:.85rem;color:#5a6872;margin-top:.25rem}.param-control input[type=number]{width:100%;padding:.5rem;background:#f8f9fa;border:1px solid #ddd;border-radius:6px;color:#333;font-size:.9rem}.info-panel{background:#f8f9fa;border-radius:8px;padding:1rem;margin-top:1rem}.info-panel h4{font-size:.9rem;margin-bottom:.75rem;color:#5a6872}#imageStats{font-size:.8rem;color:#666;line-height:1.6}#imageStats .stat-row{display:flex;justify-content:space-between;border-bottom:1px solid #e0e0e0;padding:.25rem 0}#imageStats .stat-label{color:#555}#imageStats .stat-value{color:#5a6872;font-family:monospace}footer{text-align:center;padding:2rem;background:#fff;border-top:1px solid #e0e0e0;margin-top:auto;color:#666}footer a{color:#5a6872;text-decoration:none;font-weight:600}footer a:hover{text-decoration:underline}.histogram-container{display:flex;gap:.5rem;margin-top:.5rem;justify-content:center}.histogram-bar{width:3px;background:linear-gradient(to top,#5a6872,#7a8a94);border-radius:2px 2px 0 0}@media(max-width:1200px){main{flex-direction:column}.controls-panel{flex:none;position:static}}@media(max-width:768px){header h1{font-size:1.8rem}main{padding:1rem}.image-panel{flex-direction:column}.image-container{min-width:100%}}.benchmark-controls{border-top:1px solid #e0e0e0;padding-top:1.5rem}.benchmark-results{margin-top:1rem;padding:1rem;background:#f8f9fa;border-radius:8px;border:1px solid #e0e0e0;font-family:Menlo,Monaco,Courier New,monospace;font-size:.85rem}.benchmark-placeholder{color:#999;font-style:italic;text-align:center}.benchmark-stat{display:flex;justify-content:space-between;padding:.35rem 0;border-bottom:1px solid #e8e8e8}.benchmark-stat:last-child{border-bottom:none}.benchmark-stat .label{color:#555}.benchmark-stat .value{color:#2e7d32;font-weight:600}.benchmark-stat .value.highlight{color:#1565c0;font-size:1rem}.benchmark-operation{margin-bottom:.75rem;padding-bottom:.5rem;border-bottom:2px solid #5a6872;font-weight:600;color:#5a6872}.benchmark-loading{text-align:center;color:#666;padding:.5rem}#runBenchmark{background:#2e7d32}#runBenchmark:hover{background:#1b5e20}#runBenchmark:disabled{background:#a5d6a7;cursor:not-allowed}