/**
 * @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 {
  --border-bottom-color: var(--telekom-color-ui-faint);
  --border-left-color-third-nesting: var(--telekom-color-ui-strong);
  --color-active: var(--telekom-color-text-and-icon-primary-pressed);
  --color-hover: var(--telekom-color-text-and-icon-primary-hovered);
  --color-primary: var(--telekom-color-text-and-icon-primary-standard);
  --background-color-before-active: var(--color-primary);
  --font-bold: var(--telekom-text-style-ui-bold);
  --box-shadow-focus: inset 0 0 0 var(--telekom-line-weight-highlight)
    var(--telekom-color-functional-focus-standard);
}
.sidebar-nav-item {
  border-bottom-style: solid;
  border-bottom-width: 1px;
  border-bottom-color: var(--border-bottom-color);
}

.sidebar-nav-item--active {
  position: relative;
  color: var(--color-primary);
}
.sidebar-nav-item--active::before {
  content: '';
  display: block;
  position: absolute;
  top: 0;
  left: var(--left-current-border, 0);
  width: 0; /* The transparent border makes the 2px */
  height: 100%;
  background-color: var(--background-color-before-active);
  /* Accessibility: extra transparent line for Windows HCM */
  border-left: 2px solid transparent;
}

/*:host([nesting-level='3']) .sidebar-nav-item--active::before {
  transform: translateX(-0.5px);
}*/

.sidebar-nav-item:hover.sidebar-nav-item--active::before {
  background-color: var(--color-hover);
}
.sidebar-nav-item:active.sidebar-nav-item--active::before {
  background-color: var(--color-active);
}

.sidebar-nav-item--condensed.sidebar-nav-item--active::before {
  left: -1px;
}

:host([nesting-level='1']) .sidebar-nav-item,
.sidebar-nav-item--bold {
  font: var(--font-bold);
}

:host([nesting-level='3']) .sidebar-nav-item {
  border-left-color: var(--border-left-color-third-nesting);
  border-left-style: solid;
  border-left-width: 0.0625rem;
}

::slotted(a) {
  color: currentColor;
  display: flex;
  align-items: center;
  padding-top: 1rem;
  padding-right: 1rem;
  padding-bottom: 1rem;
  padding-left: var(--spacing-indent);
  border-radius: var(--telekom-radius-small);
  text-decoration: none;
  outline: none;
  min-height: 20px;
}

:host([nesting-level='2']) ::slotted(a) {
  padding-left: calc(var(--spacing-indent) + 0.75rem);
}

::slotted(a:hover) {
  color: var(--color-hover);
}

::slotted(a:focus) {
  box-shadow: var(--box-shadow-focus);
}

::slotted(a:active) {
  color: var(--color-active);
}

.sidebar-nav-item--condensed {
  border-bottom-width: 0;
}

.sidebar-nav-item--condensed ::slotted(a) {
  padding-top: 0.5rem;
  padding-left: 0.75rem;
  padding-right: 0.5rem;
  padding-bottom: 0.5rem;
}