castopod/app/Resources/styles/tabs.css

@layer components {
  .tabset {
    @apply grid grid-cols-3;
  }

  .tabset > input[type="radio"] {
    @apply absolute -left-full;
  }

  .tabset .tab-panel {
    @apply hidden;
  }

  /* Logic for 3 tabs at most */
  .tabset > input:first-child:checked ~ .tab-panels > .tab-panel:first-child,
  .tabset > input:nth-child(3):checked ~ .tab-panels > .tab-panel:nth-child(2),
  .tabset > input:nth-child(5):checked ~ .tab-panels > .tab-panel:nth-child(3) {
    @apply block;
  }

  /* Styling */
  .tabset > label {
    @apply relative inline-block w-full px-4 py-3 text-center cursor-pointer opacity-70 hover:opacity-100;
  }

  .tabset > input:checked + label::after {
    @apply absolute inset-x-0 bottom-0 w-1/3 h-1 mx-auto bg-pine-500;
    content: "";
  }

  .tabset > input:checked + label {
    @apply font-semibold opacity-100 text-pine-700;
  }

  .tabset .tab-panels {
    @apply col-span-3 p-6;
  }
}