/**
 * @license
 * Scale https://github.com/telekom/scale
 *
 * Copyright (c) 2021 Egor Kirpichev and contributors, Deutsche Telekom AG
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/.
 */

:host {
  --max-width: 15rem;
  --spacing-indent: var(--telekom-spacing-composition-space-08);
  --spacing-collapsible: var(--telekom-spacing-composition-space-06);
  --opacity-chevron: 0;
  --left-current-border: 0;

  --color-hover: var(--telekom-color-text-and-icon-primary-hovered);
  --color-active: var(--telekom-color-text-and-icon-primary-pressed);
  --focus-outline: var(--telekom-line-weight-highlight) solid
    var(--telekom-color-functional-focus-standard);
  --color-toggle-button: var(--telekom-color-ui-regular);
  --border-y-toggle-button: 1px solid var(--telekom-color-ui-faint);
  --radius-toggle-button: var(--telekom-radius-small);
}

.sidebar-nav--collapsible {
  --max-width: none;
  --spacing-indent: 0;
  --opacity-chevron: 1;
  --left-current-border: calc(-1 * var(--spacing-collapsible));

  padding-right: var(--spacing-collapsible);
  padding-left: var(--spacing-collapsible);
}

.sidebar-nav__list {
  list-style: none;
  max-width: var(--max-width);
  padding-left: 0;
  margin-top: 0;
  margin-bottom: 0;
}

.sidebar-nav__toggle-button {
  box-sizing: border-box;
  appearance: none;
  border: 0;
  background-color: transparent;
  color: var(--color-toggle-button);
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  text-decoration: none;
  font-family: inherit;
  font-size: 1rem;
  padding-top: 1rem;
  padding-right: calc(0.5 * var(--spacing-indent));
  padding-bottom: 1rem;
  padding-left: var(--spacing-indent);
  border-radius: var(--radius-toggle-button);
  border-bottom: var(--border-y-toggle-button);
  border-top: var(--border-y-toggle-button);
  cursor: pointer;
}

.sidebar-nav__toggle-button:hover {
  color: var(--color-hover);
}

.sidebar-nav__toggle-button:active {
  color: var(--color-active);
}

.sidebar-nav__toggle-button:focus {
  outline: var(--focus-outline);
}

[aria-expanded='true'] .sidebar-nav__icon {
  transform: rotate(0.5turn);
}