@props(['col','label','sortBy','sortDir'])
@php
    $nextDir = ($sortBy === $col && $sortDir === 'asc') ? 'desc' : 'asc';
    $icone   = $sortBy === $col ? ($sortDir === 'asc' ? '▲' : '▼') : '⇅';
@endphp
<a href="{{ request()->fullUrlWithQuery(['sort'=>$col,'dir'=>$nextDir,'page'=>1]) }}"
   style="color:#fff;text-decoration:none;white-space:nowrap">
    {{ $label }} <span style="opacity:.7;font-size:.8em">{{ $icone }}</span>
</a>