.leaderboard-container{min-height:100vh;display:flex;flex-direction:column;padding:var(--spacing-xl);max-width:900px;margin:0 auto}.leaderboard-header{margin-bottom:var(--spacing-xl)}.leaderboard-header .back-link{display:inline-block;margin-bottom:var(--spacing-md);font-size:.9rem}.leaderboard-header h1{margin:0 0 var(--spacing-sm);font-size:2rem;color:var(--color-primary)}.leaderboard-header .subtitle{margin:0;color:var(--color-text-muted)}.leaderboard-main{flex:1}.leaderboard-footer{text-align:center;padding-top:var(--spacing-xl);color:var(--color-text-muted);font-size:.85rem}.tier-filter{display:flex;flex-wrap:wrap;gap:var(--spacing-xs);margin-bottom:var(--spacing-lg);padding:var(--spacing-sm);background:var(--color-bg-light);border-radius:var(--radius-md)}.tier-btn{padding:var(--spacing-xs) var(--spacing-sm);font-size:.85rem;font-weight:500;background:transparent;border:1px solid transparent;border-radius:var(--radius-sm);color:var(--color-text-muted);cursor:pointer;transition:all var(--transition-fast)}.tier-btn:hover{background:var(--color-bg);color:var(--color-text)}.tier-btn.active{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.leaderboard-table-container{background:var(--color-bg-light);border-radius:var(--radius-lg);overflow:hidden}.leaderboard-loading,.leaderboard-error,.leaderboard-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-xl);text-align:center;color:var(--color-text-muted)}.leaderboard-loading .spinner{margin-bottom:var(--spacing-md)}.leaderboard-error{color:var(--color-error)}.leaderboard-error .btn{margin-top:var(--spacing-md)}.leaderboard-table{width:100%;border-collapse:collapse}.leaderboard-table th,.leaderboard-table td{padding:var(--spacing-sm) var(--spacing-md);text-align:left}.leaderboard-table th{background:var(--color-bg);color:var(--color-text-muted);font-size:.85rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--color-bg-card)}.leaderboard-table td{border-bottom:1px solid var(--color-bg)}.leaderboard-table tbody tr:hover{background:#ffffff05}.leaderboard-table tbody tr.is-current-user{background:#00d9ff1a}.col-rank{width:60px;text-align:center!important;font-weight:600;color:var(--color-text-muted)}.col-player{min-width:150px}.col-tier{width:140px}.col-rating{width:80px;text-align:right!important;font-weight:600;color:var(--color-secondary)}.col-games{width:70px;text-align:center!important}.col-winrate{width:80px;text-align:right!important}.player-name{font-weight:500}.you-badge{display:inline-block;margin-left:var(--spacing-xs);padding:1px 6px;font-size:.7rem;font-weight:600;text-transform:uppercase;background:var(--color-secondary);color:var(--color-bg);border-radius:var(--radius-sm)}.tier-badge{display:inline-flex;align-items:center;gap:var(--spacing-xs);padding:2px 8px;border-radius:var(--radius-sm);font-size:.85rem;font-weight:500}.tier-icon{font-size:1rem}.tier-name{font-size:.8rem}.tier-badge.tier-bronze{background:#cd7f3226;color:#cd7f32}.tier-badge.tier-silver{background:#c0c0c026;color:silver}.tier-badge.tier-gold{background:#ffd70026;color:gold}.tier-badge.tier-platinum{background:#e5e4e226;color:#e5e4e2}.tier-badge.tier-diamond{background:#b9f2ff26;color:#b9f2ff}.tier-badge.tier-master{background:#9932cc26;color:#9932cc}.tier-badge.tier-grandmaster{background:#ff450026;color:#ff4500}.leaderboard-table tbody tr:nth-child(1) .col-rank{color:gold;font-size:1.1rem}.leaderboard-table tbody tr:nth-child(2) .col-rank{color:silver;font-size:1.05rem}.leaderboard-table tbody tr:nth-child(3) .col-rank{color:#cd7f32;font-size:1.05rem}@media (max-width: 600px){.leaderboard-container{padding:var(--spacing-md)}.tier-filter{justify-content:center}.leaderboard-table th,.leaderboard-table td{padding:var(--spacing-xs) var(--spacing-sm);font-size:.9rem}.col-games,.col-winrate,.tier-name{display:none}.tier-badge{padding:2px 4px}.col-rating{width:60px}}