elseif not being recognized - Variable not being assigned correct value

I have written a small script that checks the HostName in a URL for a sharepoint Site Collection and then gives a variable a value based on that HostName but the elseif in the script is not working:

$sites = Get-SPSite https://contoso.domain.cs/sites/sc 
$Logo = $null

if ($sites.HostName -eq "contoso.domain.cs" -or "contoso1.domain.cs" -or "contoso2.domain.cs") 
{
	$Logo = "/path/to/logo.jpg"
}
elseif ($sites.HostName -eq "contosoq.domain.cs" -or "contoso1q.domain.cs" -or "contoso2q.domain.cs") 
{
	$Logo = "/path/to/logo2.jpg"
}
elseif ($sites.HostName -eq "contoso3q.domain.cs") 
{
	$Logo = "/path/to/logo3.jpg"
}
else {}

The Variable $Logo is always getting the first value "/path/to/logo.jpg" even when the hostname is not equal to "contoso.domain.cs" or "contoso1.domain.cs" or "contoso2.domain.cs"

please help me if you see the error im making. thank you!

You need to alter the way you check the conditions. The entire expression to be evaluated must be repeated after each -or.

For example:

if ($sites.HostName -eq "contoso.domain.cs" -or "contoso1.domain.cs" -or "contoso2.domain.cs")

Could be changed to check each condition explicitly:

if ($sites.HostName -eq "contoso.domain.cs" -or $sites.HostName -eq "contoso1.domain.cs" -or $sites.HostName -eq "contoso2.domain.cs")

Or you could do it by using the -in comparison:

if ($sites.HostName -in ("contoso.domain.cs", "contoso1.domain.cs", "contoso2.domain.cs"))

As mentioned in the comments by iRon the following technique also works:

if ("contoso.domain.cs", "contoso1.domain.cs", "contoso2.domain.cs" -eq $sites.HostName)