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ease}.recommendation-card:hover{border-color:var(--primary);box-shadow:var(--shadow-sm)}.recommendation-reason{font-size:11px;color:var(--warning);margin-bottom:4px;font-weight:500}.usage-chart{display:flex;align-items:flex-end;gap:8px;height:100px;margin:16px 0}.usage-bar{flex:1;background:var(--primary);border-radius:var(--radius-sm);position:relative;transition:height .3s ease;min-height:4px}.usage-bar:hover{background:var(--primary-light)}.usage-bar::after{content:attr(data-label);position:absolute;bottom:-20px;left:50%;transform:translateX(-50%);font-size:11px;color:var(--text-secondary);white-space:nowrap}.heatmap-section{padding:16px 0}.heatmap-title{font-size:14px;font-weight:600;color:var(--text-primary);margin-bottom:16px}.heatmap-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}.heatmap-cell{aspect-ratio:1;background:var(--bg-secondary);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:500;color:var(--text-secondary);transition:all .15s ease;cursor:pointer}.heatmap-cell:hover{background:var(--primary);color:#fff}.heatmap-cell.high{background:rgba(16,124,212,.1);color:var(--success)}.heatmap-cell.medium{background:rgba(255,140,0,.05);color:var(--warning)}.heatmap-cell.low{background:rgba(0,120,212,.05);color:var(--primary)}.skeleton{background:linear-gradient(90deg,var(--bg-tertiary) 25%,var(--bg-secondary) 50%,var(--bg-tertiary) 75%);background-size:200% 100%;animation:skeleton-loading 1.5s infinite;border-radius:var(--radius-sm)}@keyframes skeleton-loading{0%{background-position:200% 0}100%{background-position:-200% 0}}.skeleton-text{height:16px;margin-bottom:8px;width:60%}.skeleton-title{height:24px;margin-bottom:12px;width:40%}.recommendation-section{padding:16px;background:linear-gradient(135deg,var(--bg-secondary) 0,var(--bg-tertiary) 100%);border-radius:var(--radius-md);border:1px solid var(--border-light)}.recommendation-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px}.recommendation-card{background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:16px;cursor:pointer;transition:all .15s ease}.recommendation-card:hover{border-color:var(--primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}.recommendation-badge{position:absolute;top:8px;right:8px;background:var(--success);color:#fff;font-size:9px;font-weight:600;padding:2px 6px;border-radius:var(--radius-sm)}.recommendation-icon{width:32px;height:32px;background:var(--primary);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;margin-bottom:12px}.recommendation-icon svg{width:16px;height:16px;fill:white}.recommendation-name{font-size:14px;font-weight:600;margin-bottom:4px;color:var(--text-primary)}.recommendation-desc{font-size:12px;color:var(--text-secondary);line-height:1.5}.loading-spinner{display:inline-block;width:20px;height:20px;border:2px solid var(--border-light);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{text-align:center;padding:60px 20px;color:var(--text-secondary)}.empty-state-icon{width:64px;height:64px;margin:0 auto 20px;opacity:.3}.empty-state-icon svg{width:100%;height:100%;fill:var(--text-muted)}.empty-state-title{font-size:18px;font-weight:600;margin-bottom:8px;color:var(--text-primary)}.empty-state-description{font-size:14px;color:var(--text-secondary)}.toast{position:fixed;bottom:24px;right:24px;padding:14px 20px;background:var(--bg-primary);border:1px solid var(--border-light);border-left:4px solid var(--primary);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:10001;display:flex;align-items:center;gap:12px;transform:translateX(120%);transition:transform .3s ease;max-width:400px}.toast.show{transform:translateX(0)}.toast-success{border-left-color:var(--success)}.toast-error{border-left-color:var(--danger)}.toast-icon{width:24px;height:24px;flex-shrink:0}.toast-icon svg{width:100%;height:100%}.toast-content{flex:1}.toast-title{font-weight:600;font-size:14px;margin-bottom:4px;color:var(--text-primary)}.toast-message{font-size:13px;color:var(--text-secondary)}.stats-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;background:var(--bg-secondary);border-radius:var(--radius-sm);font-size:12px;color:var(--text-secondary)}.stats-badge svg{width:14px;height:14px}.tag{display:inline-block;padding:4px 10px;background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-sm);font-size:11px;font-weight:500;color:var(--text-secondary);transition:all .15s ease}.tag:hover{background:var(--bg-tertiary);color:var(--text-primary)}.tag-primary{background:rgba(0,120,212,.1);border-color:rgba(0,120,212,.2);color:var(--primary)}.tag-success{background:rgba(16,124,16,.1);border-color:rgba(16,124,16,.2);color:var(--success)}.tag-warning{background:rgba(255,140,0,.1);border-color:rgba(255,140,0,.2);color:var(--warning)}.tag-danger{background:rgba(209,52,56,.1);border-color:rgba(209,52,56,.2);color:var(--danger)}.stats-list{display:flex;flex-direction:column;gap:8px}.stats-item{display:flex;align-items:center;gap:12px;padding:10px 12px;background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-md);cursor:pointer;transition:all .15s ease}.stats-item:hover{border-color:var(--primary);box-shadow:var(--shadow-sm);transform:translateX(4px)}.stats-rank{width:24px;height:24px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;flex-shrink:0}.stats-item:first-child .stats-rank{background:var(--warning)}.stats-item:nth-child(2) .stats-rank{background:var(--text-muted)}.stats-item:nth-child(3) .stats-rank{background:var(--border-color)}.stats-icon{width:32px;height:32px;background:var(--primary);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0}.stats-icon svg{width:16px;height:16px;fill:white}.stats-name{flex:1;font-size:13px;font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.stats-count{font-size:11px;color:var(--text-secondary);font-weight:500;background:var(--bg-secondary);padding:4px 8px;border-radius:var(--radius-sm)}.tool-share-btn{position:absolute;bottom:12px;right:12px;width:28px;height:28px;background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-md);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s ease;opacity:0;z-index:10}.tool-card:hover .tool-share-btn{opacity:1}.tool-share-btn:hover{background:var(--primary);border-color:var(--primary)}.tool-share-btn:hover svg{fill:white;color:#fff}.tool-share-btn svg{width:14px;height:14px;fill:var(--text-secondary);transition:all .15s ease}