Overleaf/services/web/frontend/stylesheets/components/badge.scss

@mixin light-themed-badge-tag {
  --badge-tag-themed-content-color: var(--content-primary);
  --badge-tag-themed-btn-hover-bg: var(--neutral-40);
  --badge-tag-themed-hover-bg: var(--neutral-30);
  --badge-tag-themed-btn-bg: var(--neutral-20);
}

@mixin dark-themed-badge-tag {
  --badge-tag-themed-content-color: var(--content-primary-dark);
  --badge-tag-themed-btn-hover-bg: var(--neutral-60);
  --badge-tag-themed-hover-bg: var(--neutral-50);
  --badge-tag-themed-btn-bg: var(--neutral-70);
}

:root {
  @include light-themed-badge-tag;

  @include theme('default') {
    .badge.badge-themed {
      @include dark-themed-badge-tag;
    }
  }
}

$max-width: 160px;

.badge {
  display: inline-flex;
  align-items: stretch;
  max-width: 100%;
  line-height: var(--line-height-01);
  padding: 0 var(--bs-badge-padding-x);

  &:not(.badge-tag) {
    max-width: $max-width;
  }
}

.badge-prepend {
  margin-right: var(--spacing-02);
  display: flex;
  align-items: center;

  .material-symbols {
    font-size: inherit;
  }
}

.badge-close {
  @include reset-button;

  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0 var(--spacing-02);
  border-top-right-radius: inherit;
  border-bottom-right-radius: inherit;
  color: inherit;
  user-select: none;

  .badge-close-icon {
    font-size: $font-size-base;
  }
}

.badge-close,
.badge-tag-content-btn {
  &:hover {
    background-color: var(--neutral-40);
  }
}

.badge-content {
  @include text-truncate;

  padding: var(--bs-badge-padding-y) 0;
  min-width: 1em;
}

.badge-tag {
  @include body-sm;

  padding: 0;
  color: $dark;

  &:hover {
    background-color: var(--neutral-30) !important;
  }
}

.badge-tag-content {
  display: flex;
  align-items: center;
  overflow: hidden;
  max-width: $max-width;
  padding-left: var(--bs-badge-padding-x);
  padding-right: var(--bs-badge-padding-x);
  border-top-left-radius: inherit;
  border-bottom-left-radius: inherit;

  &:last-child {
    border-top-right-radius: inherit;
    border-bottom-right-radius: inherit;
  }
}

.badge-tag-content-btn {
  @include reset-button;

  padding-left: var(--bs-badge-padding-x);
  padding-right: var(--bs-badge-padding-x);
}

.badge-tag-circle {
  display: block;
  margin: var(--spacing-02);
  width: var(--spacing-04);
  height: var(--spacing-04);
  border-radius: 50%;
}

.badge-premium {
  background-color: var(--neutral-20);
  color: var(--neutral-90);
  vertical-align: middle;
  margin-left: 5px;
  font-weight: var(--badge-font-weight);
}

.badge-premium-gradient {
  background: var(--premium-gradient);
  color: var(--content-primary-dark);
  vertical-align: middle;
  margin-left: 5px;
  font-weight: var(--badge-font-weight);
}

.badge-link {
  display: inline-block;

  &.badge-link-light:hover .badge {
    background-color: var(--neutral-30) !important;
  }

  &.badge-link-no-max-width {
    .badge {
      max-width: none;
    }
  }

  .badge {
    @include body-sm;

    padding: 0 var(--bs-badge-padding-x);
    transition: background-color 0.15s ease-in-out;

    &:hover {
      transition: background-color 0.15s ease-in-out;
    }
  }
}

.badge-link-list {
  display: flex;
  gap: var(--spacing-05);
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
  align-content: flex-start;

  .badge {
    max-width: 200px;
  }
}

.badge.badge-themed {
  .badge-close,
  .badge-tag-content-btn {
    &:hover {
      background-color: var(--badge-tag-themed-btn-hover-bg);
    }
  }

  &.badge-tag {
    color: var(--badge-tag-themed-content-color);
    background-color: var(--badge-tag-themed-btn-bg) !important;

    &:hover {
      background-color: var(--badge-tag-themed-hover-bg) !important;
    }
  }

  .badge-content {
    color: var(--badge-tag-themed-content-color);
  }
}