.subhead {
  position: sticky;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: $zindex-toolbar;
  inline-size: auto;
  min-block-size: 43px;
  padding: 8px 1rem;
  color: var(--atum-subhead-color);
  background: var(--atum-subhead-bg);
  background-image: var(--atum-subhead-bg-img);
  box-shadow: var(--atum-box-shadow);

  .row {
    margin-inline: 0;
  }

  &.noshadow {
    box-shadow: none;
  }

  joomla-toolbar-button,
  .btn-group {
    margin-inline-start: .75rem;

    &:first-child {
      margin-inline-start: 0;
    }
  }

  joomla-toolbar-button {
    .btn > span,
    .dropdown-item > span {
      margin-inline-end: .5rem;
      inline-size: 1.25em;
      text-align: center;
    }
  }

  .btn {
    --subhead-btn-icon: var(--atum-btn-icon);
    --subhead-btn-icon-hover: var(--atum-btn-icon-hvr);
    --subhead-btn-bg: var(--atum-btn-bg);
    --subhead-btn-bg-hvr: var(--atum-btn-bg-hvr);
    --subhead-btn-border: var(--atum-btn-border);

    padding: 0 1rem;
    margin: 5px 0;
    font-size: 1rem;
    line-height: $atum-toolbar-line-height;
    color: var(--atum-btn);
    background: var(--subhead-btn-bg);
    border: var(--subhead-btn-border);

    > span {
      display: inline-block;
      color: var(--subhead-btn-icon);
    }

    &:not([disabled]):hover,
    &:not([disabled]):active,
    &:not([disabled]):focus {
      color: var(--atum-btn-hvr);
      background-color: var(--subhead-btn-bg-hvr);
      border: var(--subhead-btn-border);

      > span {
        color: var(--subhead-btn-icon-hvr); /* $atum-btn-hvr rgba(255, 255, 255, .9); */
      }
    }

    &.btn-success {
      --subhead-btn-icon: var(--atum-btn-success-icon);
      --subhead-btn-icon-hover: var(--atum-btn-success-icon-hvr);
      --subhead-btn-bg: var(--atum-btn-success-bg);
      --subhead-btn-bg-hvr: var(--atum-btn-success-bg-hvr);
      --subhead-btn-border: var(--atum-btn-success-border);

      &:not([disabled]) {
        --subhead-btn-border: var(--atum-btn-success-border);
      }
      &:disabled {
        --subhead-btn-border: var(--atum-btn-info-border);
      }
    }

    &.btn-danger {
      --subhead-btn-icon: var(--atum-btn-danger-icon);
      --subhead-btn-icon-hover: var(--atum-btn-danger-icon-hvr);
      --subhead-btn-bg: var(--atum-btn-danger-bg);
      --subhead-btn-bg-hvr: var(--atum-btn-danger-bg-hvr);
      --subhead-btn-border: var(--atum-btn-danger-border);

      &:not([disabled]) {
        --subhead-btn-border: var(--atum-btn-danger-border);
      }
      &:disabled {
        --subhead-btn-border: var(--atum-btn-info-border);
      }
    }

    &.btn-primary {
      --subhead-btn-icon: var(--atum-btn-primary-icon);
      --subhead-btn-icon-hover: var(--atum-btn-primary-icon-hvr);
      --subhead-btn-bg: var(--atum-btn-primary-bg);
      --subhead-btn-bg-hvr: var(--atum-btn-primary-bg-hvr);
      --subhead-btn-border: var(--atum-btn-primary-border);

      &:disabled {
        --subhead-btn-border: var(--atum-btn-info-border);
      }
    }

    &.btn-info, &.button-options {
      --subhead-btn-icon: var(--atum-btn-info-icon);
      --subhead-btn-icon-hover: var(--atum-btn-info-icon-hvr);
      --subhead-btn-bg: var(--atum-btn-info-bg);
      --subhead-btn-bg-hvr: var(--atum-btn-info-bg-hvr);
      --subhead-btn-border: var(--atum-btn-info-border);
    }

    &.btn-action {
      --subhead-btn-icon: var(--atum-btn-action-icon);
      --subhead-btn-icon-hover: var(--atum-btn-info-action-hvr);
      --subhead-btn-bg: var(--atum-btn-action);
      --subhead-btn-bg-hvr: var(--atum-btn-action-bg-hvr);
      --subhead-btn-border: var(--atum-btn-action-border);
      display: flex;
      align-items: center;

      &::after {
        inline-size: 2.375rem;
        font-family: "Font Awesome 6 Free";
        font-weight: 900;
        content: "\f078";
        border: 0;
      }
    }

    &[disabled],
    &.dropdown-toggle[disabled] {
      background: var(--body-bg);
      opacity: .5;

      &:hover,
      &:active,
      &:focus {
        cursor: not-allowed;
      }
    }
  }

  .dropdown-toggle {
    &.btn {
      padding-inline-end: 0;
    }
  }

  .btn-group:not(:last-child) > .dropdown-toggle-split {
    order: 1;
    margin-inline-start: -$border-radius;
    border-radius: 0 $border-radius $border-radius 0;
  }

  .dropdown-menu joomla-toolbar-button,
  .btn-group joomla-toolbar-button {
    margin-inline-start: 0;
  }

  .contentpane & {
    margin: -15px -15px 0;
    background-image: none;
    border-block-end: 1px solid var(--template-bg-dark-7); // TODO: unified variables for light and dark mode
  }
}

@include media-breakpoint-down(sm) {
  joomla-tab[view=accordion] .col-md-9,
  joomla-tab[view=accordion] .col-md-3 {
    padding: .5rem 1rem !important;
  }

  #myTab {
    margin-block-start: 1rem;
    margin-block-end: 1.5rem;
  }

  joomla-tab[view=accordion] ul li {
    inline-size: 100%;
  }

  .toggler-toolbar {
    inset-block-start: 0;
    inset-block-end: auto;
    z-index: $zindex-alerts;
    padding: 7px 10px;
    margin: 5px;
    background-color: var(--template-bg-dark); // TODO: unified variables for light and dark mode
    border-radius: 30px;

    .toggler-toolbar-icon::before {
      font: normal normal 900 28px/1 "Font Awesome 6 Free";
      color: var(--toggle-color);
      content: "\f00d";
    }

    &.collapsed .toggler-toolbar-icon::before {
      content: "\f085";
    }
  }

  .subhead {
    padding-inline: 0;

    joomla-toolbar-button,
    .btn-group,
    .btn {
      inline-size: 100%;
      margin-inline-start: 0;
      text-align: left;
    }

    .btn-toolbar > .btn-group,
    .btn-toolbar > joomla-toolbar-button {
      margin-inline-start: 0;
    }

    .btn.btn-action::after {
      text-align: center;
      margin-inline-start: auto;
    }

    .dropdown-toggle-split {
      inline-size: auto;
    }
  }
}


@if $enable-dark-mode {
  @include color-mode(dark) {
    .subhead {
      border-block-start: 1px solid rgba(255,255,255,.05);
      border-block-end: 1px solid rgba(255,255,255,.05);
    }
  }
}

