discourse/themes/horizon/scss/header.scss

@use "lib/viewport";

.d-header {
  box-shadow: none;
  background: var(--background-color);
}

.search-menu .search-input,
.search-menu-container .search-input {
  border-color: var(--header_primary-low-mid);
}

.user-menu .quick-access-panel,
.user-notifications-list {
  li {
    &.pending,
    &.unread {
      background: var(--d-hover);

      .discourse-no-touch & {
        &:hover,
        &:focus {
          background: var(--d-selected);
        }
      }
    }
  }
}

.discourse-no-touch .d-header-icons .icon:hover,
.discourse-no-touch .d-header-icons .icon:focus,
.header-sidebar-toggle button:focus:hover,
.discourse-no-touch .header-sidebar-toggle button:hover {
  background-color: transparent;
}

.discourse-no-touch .d-header-icons .icon:hover > .d-icon,
.drop-down-mode .d-header-icons .active .icon > .d-icon,
.drop-down-mode
  .d-header-icons
  .header-color-scheme-toggle
  .-expanded
  > .d-icon,
.discourse-no-touch .header-sidebar-toggle button:hover .d-icon {
  color: var(--header_primary-medium);
}

.discourse-no-touch .interface-color-selector-content {
  border: none;
  border-radius: var(--d-border-radius);

  .btn {
    border: none;

    &:hover {
      box-shadow: none;
    }
  }
}

.drop-down-mode .d-header-icons .active .icon,
.drop-down-mode .d-header-icons .header-color-scheme-toggle .-expanded {
  border-color: transparent;
  background-color: transparent;
}

.badge-notification {
  color: var(--accent-text-color);
}

body.login-page,
body.signup-page,
body.invite-page,
body.password-reset-page,
body.activate-account-page {
  .d-header {
    background: var(--background-color);
  }
}

.header-dropdown-toggle.chat-header-icon .icon .chat-channel-unread-indicator {
  border-color: var(--background-color);
}

.d-header-icons .badge-notification {
  border-color: var(--background-color);
}