.tool-header{text-align:center;margin-bottom:40px}.header-badge{display:flex;justify-content:center;gap:12px;margin-bottom:24px;flex-wrap:wrap}.badge{background:linear-gradient(135deg, #10b981, #059669);color:white;padding:6px 18px;border-radius:40px;font-size:0.75rem;font-weight:500;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.tool-header h1{font-size:2.2rem;font-weight:800;background:linear-gradient(135deg, #1e293b, #10b981);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:1rem}.core-stats{display:flex;justify-content:center;gap:24px;margin-bottom:32px;flex-wrap:wrap}.core-stat{background:white;border-radius:60px;padding:16px 28px;display:flex;align-items:center;gap:16px;box-shadow:0 4px 15px rgba(0,0,0,0.05);border:1px solid var(--gray-200)}.core-stat-icon{width:48px;height:48px;background:linear-gradient(135deg, #d1fae5, #a7f3d0);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#10b981;font-size:1.3rem}.core-stat-info{text-align:left}.core-stat-value{display:block;font-size:1.5rem;font-weight:700;color:var(--gray-800)}.core-stat-label{font-size:0.7rem;color:var(--gray-500)}.mode-tabs{display:flex;gap:16px;margin-bottom:24px;justify-content:center}.mode-tab{background:transparent;border:none;padding:12px 24px;cursor:pointer;transition:all 0.3s;border-radius:60px;text-align:center;min-width:140px}.mode-tab i{font-size:1.2rem;margin-right:8px}.mode-tab span{font-weight:500}.mode-tab small{display:block;font-size:0.65rem;color:var(--gray-400);margin-top:4px}.mode-tab.active{background:linear-gradient(135deg, #10b981, #059669);color:white;box-shadow:0 4px 12px rgba(16,185,129,0.3)}.mode-tab.active small{color:rgba(255,255,255,0.7)}.algorithm-bar{display:flex;align-items:center;gap:20px;margin-bottom:20px;padding:12px 16px;background:var(--gray-50);border-radius:60px;flex-wrap:wrap}.algorithm-label{font-weight:500;color:var(--gray-600);font-size:0.85rem}.algorithm-buttons{display:flex;gap:12px;flex-wrap:wrap}.algo-btn{background:white;border:1px solid var(--gray-200);padding:8px 20px;border-radius:40px;cursor:pointer;transition:all 0.2s;font-size:0.85rem;position:relative}.algo-btn.active{background:#10b981;border-color:#10b981;color:white}.algo-badge{position:absolute;top:-8px;right:-8px;background:#f59e0b;color:white;font-size:0.6rem;padding:2px 6px;border-radius:20px}.level-bar{display:flex;align-items:center;gap:20px;margin-bottom:24px;padding:12px 16px;background:var(--gray-50);border-radius:60px;flex-wrap:wrap}.level-label{font-weight:500;color:var(--gray-600);font-size:0.85rem}.level-control{display:flex;align-items:center;gap:16px;flex:1;max-width:400px}.level-control input{flex:1}.level-value{min-width:80px;font-size:0.8rem;color:#10b981;font-weight:500}.editor-container{display:grid;grid-template-columns:1fr auto 1fr;gap:20px;margin-bottom:24px}.editor-card{background:white;border-radius:20px;overflow:hidden;border:1px solid var(--gray-200)}.editor-header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:var(--gray-50);border-bottom:1px solid var(--gray-200)}.editor-title{display:flex;align-items:center;gap:8px;font-weight:500;font-size:0.85rem}.editor-actions{display:flex;gap:6px}.icon-btn{background:transparent;border:none;padding:6px 10px;border-radius:30px;cursor:pointer;transition:all 0.2s;color:var(--gray-500)}.icon-btn:hover{background:var(--gray-200);color:#10b981}.compressor-textarea{width:100%;min-height:250px;padding:16px;font-family:'Fira Code',monospace;font-size:13px;line-height:1.5;border:none;resize:vertical;background:#1a1a2e;color:#e0e0e0}.compressor-textarea:focus{outline:none}.result-textarea{background:#1a1a2e;color:#a0a0c0}.editor-footer{padding:8px 16px;background:var(--gray-50);border-top:1px solid var(--gray-200);font-size:0.7rem;color:var(--gray-500)}.compress-icon{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px}.compress-icon i{font-size:2rem;color:var(--gray-300)}.compress-action-btn{background:linear-gradient(135deg, #10b981, #059669);border:none;padding:10px 20px;border-radius:40px;color:white;cursor:pointer;transition:all 0.2s}.compress-action-btn:hover{transform:scale(1.05);box-shadow:0 4px 12px rgba(16,185,129,0.3)}.file-upload-area{border:2px dashed var(--gray-300);border-radius:24px;padding:50px;text-align:center;cursor:pointer;transition:all 0.3s;margin-bottom:20px}.file-upload-area:hover{border-color:#10b981;background:var(--gray-50)}.file-upload-area i{font-size:48px;color:var(--gray-400);margin-bottom:16px}.upload-hint{display:block;font-size:0.7rem;color:var(--gray-400);margin-top:8px}.file-info{background:var(--gray-50);border-radius:16px;padding:16px;margin-bottom:20px}.file-detail{display:flex;gap:24px;flex-wrap:wrap}.decode-container{display:grid;grid-template-columns:1fr auto 1fr;gap:20px}.decode-action{display:flex;align-items:center;justify-content:center}.decode-action .btn-primary{padding:12px 28px}.compress-viz{margin-top:24px;padding:20px;background:var(--gray-50);border-radius:20px}.viz-header{font-weight:500;margin-bottom:16px}.viz-bars{display:flex;flex-direction:column;gap:16px}.viz-item{display:flex;align-items:center;gap:16px}.viz-label{width:80px;font-size:0.8rem;color:var(--gray-600)}.viz-bar{flex:1;height:32px;background:var(--gray-200);border-radius:16px;overflow:hidden}.viz-fill{height:100%;border-radius:16px;transition:width 0.3s ease}.original-fill{background:#3b82f6}.compressed-fill{background:#10b981}.viz-value{width:80px;font-size:0.8rem;font-weight:500;color:var(--gray-700)}.info-section{margin-top:24px}.info-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px;padding:16px;background:var(--gray-50);border-radius:20px}.info-item{display:flex;align-items:center;gap:8px;font-size:0.8rem;color:var(--gray-600)}.info-item i{color:#10b981}@media (max-width:900px){.editor-container{grid-template-columns:1fr}.compress-icon{flex-direction:row;margin:16px 0}.compress-icon i{transform:rotate(90deg)}.decode-container{grid-template-columns:1fr}.decode-action{margin:16px 0}.info-grid{grid-template-columns:repeat(2, 1fr)}.mode-tab{min-width:auto;padding:10px 16px}}@media (max-width:480px){.core-stats{gap:12px}.core-stat{padding:12px 20px}.info-grid{grid-template-columns:1fr}.algorithm-bar,.level-bar{flex-direction:column;align-items:flex-start;border-radius:20px}.level-control{width:100%}}