.leaderboard-container{max-width:800px;margin:0 auto;padding:20px}.leaderboard-card{background:#fff;border-radius:12px;padding:24px;margin-bottom:20px;box-shadow:0 2px 8px rgba(0,0,0,0.06)}.leaderboard-title{font-size:22px;font-weight:700;color:#2d3748;margin-bottom:20px;text-align:center}.leaderboard-tabs{display:flex;gap:8px;margin-bottom:20px;background:#f7fafc;padding:6px;border-radius:10px}.leaderboard-tab{flex:1;padding:10px;text-align:center;border-radius:8px;cursor:pointer;font-size:14px;font-weight:600;color:#718096;transition:all 0.2s;border:none;background:transparent}.leaderboard-tab.active{background:#fff;color:#4299e1;box-shadow:0 2px 4px rgba(0,0,0,0.08)}.leaderboard-list{list-style:none;padding:0;margin:0}.leaderboard-item{display:flex;align-items:center;padding:14px 12px;border-bottom:1px solid #edf2f7;transition:background 0.2s}.leaderboard-item:last-child{border-bottom:none}.leaderboard-item:hover{background:#f7fafc}.rank-badge{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;margin-right:12px;flex-shrink:0}.rank-1{background:linear-gradient(135deg,#f6e05e,#d69e2e);color:#fff}.rank-2{background:linear-gradient(135deg,#e2e8f0,#a0aec0);color:#fff}.rank-3{background:linear-gradient(135deg,#f6ad55,#c05621);color:#fff}.rank-other{background:#edf2f7;color:#718096}.item-avatar{width:40px;height:40px;border-radius:50%;background:#4299e1;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:16px;margin-right:12px;flex-shrink:0;overflow:hidden}.item-avatar img{width:100%;height:100%;object-fit:cover}.item-info{flex:1;min-width:0}.item-name{font-size:15px;font-weight:600;color:#2d3748;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.item-desc{font-size:12px;color:#a0aec0}.item-value{text-align:right;flex-shrink:0;margin-left:12px}.item-value-number{font-size:16px;font-weight:700;color:#4299e1}.item-value-label{font-size:11px;color:#a0aec0}.loading-state{text-align:center;padding:40px;color:#a0aec0}.empty-state{text-align:center;padding:40px;color:#a0aec0}@media (max-width:600px){.leaderboard-container{padding:12px}.leaderboard-card{padding:16px}.leaderboard-title{font-size:18px}.leaderboard-tab{font-size:12px;padding:8px 4px}.item-name{font-size:14px}.item-value-number{font-size:14px}}