:root{--bg-primary: #0a0a0a;--bg-secondary: #141414;--bg-tertiary: #1a1a1a;--text-primary: #e0e0e0;--text-secondary: #888;--text-dim: #666;--accent: #ff4444;--accent-hover: #ff6666;--accent-dim: #661111;--success: #00ff88;--success-dim: #00aa55;--border: #222;--border-light: #333;--shadow: rgba(0, 0, 0, .5)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh}.app{min-height:100vh;display:flex;flex-direction:column}.header{background:var(--bg-secondary);border-bottom:1px solid var(--border);padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center}.logo{font-family:JetBrains Mono,Courier New,monospace;font-size:1.8rem;font-weight:900;font-variant-numeric:slashed-zero}.logo-l,.logo-ss{color:#fff}.logo-zero{color:#f84}.logo-subtitle{font-size:.9rem;color:var(--text-secondary);margin-left:.5rem;font-weight:400}.header-links{display:flex;gap:1.5rem;align-items:center}.header-links a{color:var(--text-secondary);text-decoration:none;transition:color .2s}.header-links a:hover{color:var(--text-primary)}.container{flex:1;max-width:1200px;width:100%;margin:0 auto;padding:2rem}section{margin-bottom:2rem}section h2{font-size:1.5rem;margin-bottom:1rem;color:var(--text-primary)}.warning-banner{background:#ffaa001a;border:1px solid rgba(255,170,0,.3);border-radius:8px;padding:1rem 1.5rem;margin:0 auto 2rem;max-width:800px;display:flex;align-items:flex-start;gap:.75rem}.warning-icon{font-size:1.25rem;flex-shrink:0}.warning-content{font-size:.9rem;color:var(--text-primary);line-height:1.6}.warning-content strong{color:#fa0}.pwa-info{background:#00ff881a;border:1px solid rgba(0,255,136,.3);border-radius:8px;padding:1rem 1.5rem;margin:0 auto 2rem;max-width:800px}.pwa-info-content{display:flex;align-items:flex-start;gap:1rem;position:relative}.pwa-icon{font-size:2rem;flex-shrink:0}.pwa-text{flex:1}.pwa-text h3{font-size:1.1rem;color:var(--success);margin:0 0 .5rem}.pwa-text p{font-size:.9rem;color:var(--text-primary);margin:0 0 1rem}.pwa-instructions{font-size:.85rem;color:var(--text-secondary);line-height:1.6}.pwa-instructions strong{color:var(--text-primary);display:block;margin-bottom:.5rem}.pwa-instructions ul{margin:0;padding-left:1.5rem}.pwa-instructions li{margin-bottom:.5rem}.pwa-instructions li strong{display:inline;color:var(--success)}.btn-close-pwa{position:absolute;top:-.5rem;right:-.5rem;background:transparent;border:none;color:var(--text-secondary);font-size:1.5rem;cursor:pointer;padding:.25rem .5rem;transition:color .2s;line-height:1}.btn-close-pwa:hover{color:var(--text-primary)}@media (max-width: 768px){.pwa-info-content{flex-direction:column}.pwa-icon{font-size:1.5rem}}.upload-area{background:var(--bg-secondary);border:2px dashed var(--border);border-radius:12px;padding:3rem 2rem;text-align:center;transition:all .3s;cursor:pointer}.upload-area:hover,.upload-area.drag-over{border-color:var(--accent);background:var(--bg-tertiary)}.upload-icon{font-size:4rem;margin-bottom:1rem}.upload-area h2{color:var(--text-primary);margin-bottom:.5rem}.upload-area p{color:var(--text-secondary);margin-bottom:1.5rem}.upload-buttons{display:flex;gap:1rem;justify-content:center;align-items:flex-start}.sample-files-dropdown{position:relative}.sample-files-menu{position:absolute;top:100%;left:0;margin-top:.5rem;background:var(--bg-secondary);border:1px solid var(--border);border-radius:6px;min-width:280px;box-shadow:0 4px 12px var(--shadow);z-index:100}.sample-file-item{display:block;width:100%;padding:.75rem 1rem;text-align:left;background:transparent;border:none;color:var(--text-primary);cursor:pointer;transition:background .2s;font-size:.9rem;border-bottom:1px solid var(--border)}.sample-file-item:last-child{border-bottom:none}.sample-file-item:hover{background:var(--bg-tertiary)}@media (max-width: 768px){.upload-buttons{flex-direction:column;width:100%}.upload-buttons .btn,.sample-files-dropdown{width:100%}.sample-files-menu{left:0;right:0;width:100%}}.btn{padding:.75rem 1.5rem;border:none;border-radius:6px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border)}.btn:hover{background:var(--border);transform:translateY(-2px)}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-success{background:var(--success);color:#000;border-color:var(--success)}.btn-success:hover{background:var(--success-dim);border-color:var(--success-dim)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-secondary);border-color:var(--border)}.btn-large{padding:1rem 2rem;font-size:1.2rem;width:100%;margin-top:1rem}.btn-sm{padding:.5rem 1rem;font-size:.9rem}.btn-remove{background:transparent;border:none;color:var(--text-secondary);font-size:1.2rem;cursor:pointer;padding:.5rem;transition:color .2s}.btn-remove:hover{color:var(--accent)}.install-button{background:var(--success);color:#000;padding:.5rem 1rem;border-radius:6px;text-decoration:none;font-weight:600;transition:all .2s}.install-button:hover{background:var(--success-dim)}.file-item{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:1rem;margin-bottom:.75rem;display:flex;justify-content:space-between;align-items:center;transition:all .2s}.file-item:hover{border-color:var(--border-light);background:var(--bg-tertiary)}.file-info{display:flex;gap:1rem;align-items:center}.file-icon{font-size:2rem}.file-name{font-weight:600;color:var(--text-primary)}.file-meta{font-size:.9rem;color:var(--text-secondary)}.settings-grid{display:grid;gap:1.5rem}.setting-group label{display:block;font-weight:600;margin-bottom:.75rem;color:var(--text-primary)}.level-buttons{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.level-btn{background:var(--bg-secondary);border:2px solid var(--border);border-radius:8px;padding:1rem;cursor:pointer;transition:all .2s;text-align:center;position:relative}.level-btn:hover{border-color:var(--accent);transform:translateY(-2px)}.level-btn.active{border-color:var(--accent);background:var(--accent-dim)}.level-btn strong{display:block;font-size:1.1rem;margin-bottom:.25rem;color:var(--text-primary)}.level-btn span{display:block;font-size:.9rem;color:var(--text-secondary)}.level-btn small{display:block;margin-top:.5rem;color:var(--success);font-weight:600}.result-item{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:1rem;margin-bottom:1rem}.result-item.error{border-color:var(--accent)}.result-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.result-stats{display:flex;gap:1rem;align-items:center}.stat{color:var(--text-secondary);font-size:.9rem}.reduction{padding:.25rem .75rem;border-radius:4px;font-weight:600;font-size:.9rem}.reduction.excellent{background:#0f83;color:var(--success)}.reduction.good{background:#f843;color:#f84}.reduction.moderate{background:#f443;color:var(--accent)}.result-actions{display:flex;gap:.75rem}.result-error{color:var(--accent);font-size:.9rem}.result-optimizations{margin:1rem 0;padding:1rem;background:var(--bg-primary);border-radius:6px;border-left:3px solid var(--success)}.result-optimizations h4{font-size:.9rem;color:var(--text-primary);margin:0 0 .5rem}.result-optimizations ul{margin:0;padding-left:1.5rem;font-size:.85rem;color:var(--text-secondary)}.result-optimizations li{margin-bottom:.25rem}.results-actions{display:flex;gap:1rem;margin-top:2rem}.results-actions .btn{flex:1}.loading{position:fixed;top:0;left:0;right:0;bottom:0;background:#0a0a0af2;display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:1000}.spinner{width:50px;height:50px;border:4px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading #loadingText{font-size:1rem;color:var(--text-primary);margin-bottom:1rem}.progress-bar-container{width:100%;max-width:500px;height:6px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:3px;overflow:hidden;margin:1rem auto}.progress-bar{height:100%;width:0%;background:linear-gradient(90deg,var(--accent) 0%,var(--success) 100%);border-radius:3px;transition:width .3s ease;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}#loadingSubtext{font-size:.85rem;color:var(--text-secondary);margin-top:.5rem}.footer{background:var(--bg-secondary);border-top:1px solid var(--border);padding:2rem;text-align:center;color:var(--text-secondary)}.footer p{margin-bottom:.5rem}.footer a{color:var(--text-secondary);text-decoration:none;transition:color .2s}.footer a:hover{color:var(--text-primary)}@media (max-width: 768px){.container{padding:1rem}.header{flex-direction:column;gap:1rem;text-align:center}.level-buttons{grid-template-columns:1fr}.result-header{flex-direction:column;align-items:flex-start;gap:.5rem}.results-actions{flex-direction:column}.comparison-grid{grid-template-columns:1fr}.config-panel{margin-top:1.5rem}}.preview-section{background:var(--bg-secondary);padding:2rem;border-radius:8px;margin-bottom:2rem}.comparison-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin:1.5rem 0}.comparison-card{background:var(--bg-primary);border:2px solid var(--border);border-radius:8px;padding:1.5rem;text-align:center;position:relative;transition:all .2s;cursor:pointer}.comparison-card:hover{border-color:var(--accent-dim);transform:translateY(-2px);box-shadow:0 4px 12px #f443}.comparison-card.recommended{border-color:var(--success)}.comparison-card.selected{border-color:var(--accent);background:#ff44440d;box-shadow:0 0 0 3px #ff44441a}.comparison-card.ineffective{opacity:.5;cursor:not-allowed;border-color:var(--border)}.comparison-card.ineffective:hover{transform:none;box-shadow:none;border-color:var(--border)}.comparison-card h3{font-size:1.1rem;margin-bottom:1rem;color:var(--text-primary)}.comparison-card .stat-value{font-size:1.5rem;font-weight:700;color:var(--success);font-family:JetBrains Mono,Courier New,monospace;margin-bottom:.5rem}.comparison-card .stat-label{font-size:.8rem;color:var(--text-secondary);margin-bottom:1rem}.level-description{font-size:.75rem;color:var(--text-secondary);margin-top:.5rem;font-style:italic}.recommended-badge{position:absolute;top:.5rem;right:.5rem;background:var(--success);color:var(--bg-primary);padding:.25rem .5rem;border-radius:4px;font-size:.7rem;font-weight:700;text-transform:uppercase}.no-improvement-badge{font-size:.7rem;color:var(--text-secondary);margin-top:.25rem;font-style:italic}.preview-hint{text-align:center;font-size:.9rem;color:var(--text-secondary);padding:1rem;background:var(--bg-primary);border-radius:4px;border:1px solid var(--border);margin-top:1rem}#diffPreview{background:var(--bg-primary);border:1px solid var(--border);border-radius:8px;padding:1.5rem}#diffPreview h3{color:var(--text-primary);font-size:1.1rem}#diffContent{margin-top:1rem}.diff-section{margin-bottom:1rem}.diff-label{font-weight:600;color:var(--text-primary);margin-bottom:.5rem;font-size:.9rem}.diff-before{background:#ff44441a;padding:.75rem;border-radius:4px;overflow-x:auto;margin:.5rem 0;color:#f66;white-space:pre-wrap;word-break:break-all;font-family:JetBrains Mono,Courier New,monospace;font-size:.85rem;max-height:300px;overflow-y:auto}.diff-after{background:#00ff881a;padding:.75rem;border-radius:4px;overflow-x:auto;margin:.5rem 0;color:var(--success);white-space:pre-wrap;word-break:break-all;font-family:JetBrains Mono,Courier New,monospace;font-size:.85rem;max-height:300px;overflow-y:auto}.config-panel{margin-top:2rem;padding:1.5rem;background:var(--bg-primary);border:1px solid var(--border);border-radius:8px}.config-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.config-panel h3{margin:0;color:var(--text-primary);font-size:1.1rem}.config-toggle{background:transparent;border:1px solid var(--accent);color:var(--accent);padding:.5rem 1rem;border-radius:4px;cursor:pointer;font-size:.875rem;transition:all .2s}.config-toggle:hover{background:#ff44441a}.config-hint{margin-top:1rem;padding:1rem;background:var(--bg-secondary);border-radius:4px;border-left:3px solid var(--accent);font-size:.85rem;color:var(--text-secondary)}.config-content{display:grid;gap:1rem}.config-option{padding:1rem;background:var(--bg-secondary);border:1px solid var(--border);border-radius:6px;transition:border-color .2s}.config-option:hover{border-color:var(--border-light)}.config-option-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.config-option-name{font-weight:600;color:var(--text-primary);font-size:.95rem}.config-option-impact{padding:.25rem .5rem;border-radius:4px;font-size:.7rem;font-weight:700;text-transform:uppercase}.config-option-impact.low{background:#00ff881a;color:var(--success);border:1px solid rgba(0,255,136,.3)}.config-option-impact.medium{background:#ffaa001a;color:#fa0;border:1px solid rgba(255,170,0,.3)}.config-option-impact.high{background:#ff44441a;color:var(--accent);border:1px solid rgba(255,68,68,.3)}.config-option-desc{font-size:.85rem;color:var(--text-secondary);margin-bottom:.75rem;line-height:1.4}.config-option-control{display:flex;align-items:center;gap:.5rem}.config-option-control input[type=checkbox]{width:18px;height:18px;cursor:pointer;accent-color:var(--accent)}.config-option-control input[type=number],.config-option-control input[type=text]{background:var(--bg-primary);border:1px solid var(--border);border-radius:4px;padding:.4rem .6rem;color:var(--text-primary);font-size:.9rem;width:100px}.config-option-control input[type=number]:focus,.config-option-control input[type=text]:focus{outline:none;border-color:var(--accent)}.config-option-control label{font-size:.9rem;color:var(--text-secondary);cursor:pointer}.selected-level-info{text-align:center;margin-bottom:1.5rem}.selected-level-badge{display:inline-block;background:var(--bg-primary);border:2px solid var(--accent);padding:.75rem 1.5rem;border-radius:8px;font-size:1rem;color:var(--text-primary)}.selected-level-badge strong{color:var(--accent);text-transform:capitalize}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-bottom:2rem}.stat-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:1.5rem;text-align:center}.stat-card .stat-value{font-size:1.5rem;font-weight:700;color:var(--success);font-family:JetBrains Mono,Courier New,monospace;margin-bottom:.5rem}.stat-card .stat-label{font-size:.8rem;color:var(--text-secondary)}@media (max-width: 768px){.stat-grid{grid-template-columns:1fr}}.svg-visual-comparison{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-top:1rem}.svg-comparison-item{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:1rem}.svg-container{background:#fff;border:1px solid var(--border);border-radius:4px;padding:1rem;margin:.5rem 0;display:flex;align-items:center;justify-content:center;min-height:200px;max-height:400px;overflow:auto}.svg-container svg{max-width:100%;max-height:350px;height:auto}.svg-before{border-left:3px solid rgba(255,68,68,.5)}.svg-after{border-left:3px solid rgba(0,255,136,.5)}.svg-size-label{text-align:center;font-size:.9rem;color:var(--text-secondary);font-family:JetBrains Mono,Courier New,monospace;margin-top:.5rem}@media (max-width: 768px){.svg-visual-comparison{grid-template-columns:1fr}}.multiple-files-info{background:#00ff881a;border:1px solid rgba(0,255,136,.3);border-radius:8px;padding:1.5rem;margin-bottom:2rem;display:flex;align-items:flex-start;gap:1rem}.multiple-files-info .info-icon{font-size:1.5rem;flex-shrink:0}.multiple-files-info .info-content{flex:1}.multiple-files-info strong{font-size:1rem;color:var(--success);display:block;margin-bottom:.5rem}.multiple-files-info p{font-size:.9rem;color:var(--text-primary);margin:0;line-height:1.5}