flotilla/src/lib/components/primary-nav.css

@layer components {
  .primary-nav {
    @apply z-popover bg-surface border-line relative isolate w-14 shrink-0 flex-col border-r border-solid pt-2;
  }

  .drawer .primary-nav .tip[data-tip]::before {
    @apply hidden;
  }

  .primary-nav__spaces {
    @apply flex min-h-0 w-full flex-1 flex-col items-center self-start overflow-y-auto;
    scrollbar-width: none;
    -ms-overflow-style: none;

    /* Fades whichever end of the list has spaces past it */
    mask-image: linear-gradient(
      to bottom,
      transparent 0,
      black var(--fade-top, 0px),
      black calc(100% - var(--fade-bottom, 0px)),
      transparent 100%
    );

    &::-webkit-scrollbar {
      display: none;
    }
  }

  /* Hover tooltips reach past the rail, and a scroll container clips whatever leaves it. The extra
     width is padding, so it holds them without moving the items, and passes its pointer events to
     the page underneath. Tooltips are a desktop affair, so the rail in the mobile drawer keeps the
     width it draws in. */
  @media (min-width: 768px) {
    .primary-nav__spaces {
      width: calc(100% + 12rem);
      padding-right: 12rem;
      pointer-events: none;

      & > * {
        pointer-events: auto;
      }
    }
  }

  .primary-nav__nav-item {
    @apply text-content relative my-1 flex h-12 w-12 cursor-pointer items-center justify-center rounded-full transition-all;
  }

  .primary-nav__nav-item:hover,
  .primary-nav__nav-item--active {
    @apply bg-surface-more rounded-2xl;
  }

  .primary-nav__nav-item::after {
    content: "";
    @apply absolute top-1/2 left-auto h-0 w-1 -translate-y-1/2 rounded-r max-md:hidden;
    right: calc(100% + 6px);
    background-color: var(--content);
    transition: height 150ms ease;
  }

  .primary-nav__nav-item:hover::after {
    @apply h-5;
  }

  .primary-nav__nav-item--active::after {
    @apply h-10;
  }
}

[data-fl-theme="clay"] .primary-nav {
  .primary-nav__nav-item:hover {
    background-color: color-mix(in srgb, var(--primary) 30%, transparent);
    box-shadow: var(--shadow-sm);
  }

  .primary-nav__nav-item--active {
    background-color: var(--primary);
    color: var(--primary-content);
    box-shadow: var(--shadow-sm), var(--shadow-inset);
  }

  .primary-nav__nav-item:active {
    background-color: color-mix(in srgb, var(--primary) 50%, transparent);
    transform: translateY(1px);
    box-shadow: none;
  }
}