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(max-width: 1279px){.ranking-grid-items{grid-template-columns:repeat(auto-fill,minmax(350px,1fr))}}@media (min-width: 1681px){.ranking-grid-items{grid-template-columns:repeat(4,1fr);max-width:none}}.channel-card,.video-card{position:relative;background:var(--card-background);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--border-color);transition:all .3s ease;overflow:hidden}.channel-card:hover,.video-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.channel-card-content,.video-card-content{padding:var(--spacing-lg)}.rank-badge{position:absolute;top:var(--spacing-md);right:var(--spacing-md);background:var(--primary-color);color:#fff;padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--radius-md);font-size:.8rem;font-weight:600;z-index:1}.channel-avatar{width:80px;height:80px;border-radius:50%;overflow:hidden;margin:0 auto var(--spacing-md);border:3px solid var(--border-color)}.channel-avatar 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svg{width:20px;height:20px;margin-left:2px}.video-title{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-sm);line-height:1.3;cursor:pointer}.video-title:hover{color:var(--primary-color)}.video-meta{color:var(--text-muted);font-size:.85rem;margin-bottom:var(--spacing-md)}.channel-stats,.video-stats{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-md);margin-bottom:var(--spacing-md)}.stat-item{text-align:center;padding:var(--spacing-sm)}.stat-label{display:block;font-size:.8rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:var(--spacing-xs)}.stat-value{display:block;font-size:1.1rem;font-weight:600;color:var(--text-primary)}.growth-metrics{display:flex;gap:var(--spacing-sm);justify-content:center}.growth-item{display:flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--radius-md);font-size:.85rem;font-weight:500}.growth-item.growth-positive{background:#10b9811a;color:var(--success-color)}.growth-item.growth-negative{background:#ef44441a;color:var(--error-color)}.growth-item.growth-neutral{background:#64748b1a;color:var(--text-secondary)}.growth-label{font-size:.75rem;opacity:.8}.hover-chart{position:absolute;inset:0;background:var(--card-background);border-radius:var(--radius-lg);padding:var(--spacing-md);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);z-index:5}.chart-loading,.chart-error{text-align:center;color:var(--text-secondary);font-size:.9rem}.growth-chart{width:100%}.growth-chart.compact{height:150px}.chart-container{position:relative}.chart-summary{display:flex;gap:var(--spacing-lg);justify-content:center;margin-top:var(--spacing-md);padding-top:var(--spacing-md);border-top:1px solid var(--border-color)}.summary-item{text-align:center}.summary-label{display:block;font-size:.8rem;color:var(--text-muted);margin-bottom:var(--spacing-xs)}.summary-value{font-weight:600;color:var(--text-primary)}.change.positive{color:var(--success-color)}.change.negative{color:var(--error-color)}.change.neutral{color:var(--text-secondary)}.loading-spinner{display:flex;align-items:center;justify-content:center;padding:var(--spacing-xl)}.spinner{width:40px;height:40px;border:3px solid var(--border-color);border-top:3px solid var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}.spinner-small .spinner{width:24px;height:24px;border-width:2px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.comparison-tool{background:var(--card-background);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid 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