.dgk-period-selector {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.dgk-period-btn {
    padding: 6px 16px;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.5);
    background: rgba(255,255,255,0.15);
    color: inherit;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s ease;
}

.dgk-period-btn.active,
.dgk-period-btn:hover {
    background: #1565c0;
    color: #fff;
    border-color: #1565c0;
}

.dgk-leaderboard-table {
    width: 100%;
    border-collapse: collapse;
}

.dgk-leaderboard-table th,
.dgk-leaderboard-table td {
    padding: 10px 15px;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

.dgk-leaderboard-table th {
    background: #f8f9fa;
    font-weight: 600;
    font-size: 13px;
}