/* 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 http://mozilla.org/MPL/2.0/. */

:host {
  --page-nav-button-border-radius: var(--button-border-radius);
  --page-nav-button-text-color: var(--button-text-color);
  --page-nav-button-background-color: transparent;
  --page-nav-button-background-color-hover: var(--button-background-color-hover);
  --page-nav-button-background-color-selected: var(--color-accent-primary);
  --page-nav-button-padding: var(--space-small);
  --page-nav-margin-top: 72px;
  --page-nav-margin-bottom: 36px;
  --page-nav-gap: 25px;
  --page-nav-button-gap: var(--space-xsmall);
  --page-nav-border-color: var(--border-color);
  --page-nav-focus-outline-inset: var(--focus-outline-inset);
  --page-nav-width: 240px;
  margin-inline-start: 42px;
  position: sticky;
  top: 0;
  height: 100vh;
  width: var(--page-nav-width);

  @media (prefers-reduced-motion) {
    /* (See Bug 1610081) Setting border-inline-end to add clear differentiation between side navigation and main content area */
    border-inline-end: 1px solid var(--page-nav-border-color);
  }

  @media (max-width: 52rem) {
    grid-template-rows: 1fr auto;
    --page-nav-width: 118px;
  }
}

nav {
  display: grid;
  grid-template-rows: min-content 1fr auto;
  gap: var(--page-nav-gap);
  margin-block: var(--page-nav-margin-top) var(--page-nav-margin-bottom);
  height: calc(100vh - var(--page-nav-margin-top) - var(--page-nav-margin-bottom));
  @media (max-width: 52rem) {
    grid-template-rows: 1fr auto;
  }
}

.page-nav-header {
  /* Align the header text/icon with the page nav button icons */
  margin-inline-start: var(--page-nav-button-padding);
  font-size: var(--font-size-xlarge);
  font-weight: var(--font-weight-bold);
  margin-block: 0;

  @media (max-width: 52rem) {
    display: none;
  }
}

.primary-nav-group,
#secondary-nav-group {
  display: grid;
  grid-template-columns: 1fr;
  grid-auto-rows: min-content;
  gap: var(--page-nav-button-gap);

  @media (max-width: 52rem) {
    justify-content: center;
    grid-template-columns: min-content;
  }
}

@media (prefers-contrast) {
  .primary-nav-group {
    gap: var(--space-small);
  }
}