/* The staff nav down the left (layouts/shared/_sidenav). The page runs in a second column
/* beside it; the bottom of the screen stays clear but for the notification bell (corner.css).
/* Below 800px the nav runs across the top as one scrolling row. */
@layer components {
  body.with-sidenav {
    --sidenav-width: 13.5rem;

    grid-template-columns: var(--sidenav-width) minmax(0, 1fr);
    /* The last row keeps the bottom right clear for the notification bell. */
    grid-template-rows: auto 1fr auto 4em;

    #global-container > :not(.sidenav),
    > #footer {
      grid-column: 2;
    }

    /* Fill the column: auto margins would shrink a grid item to its content. */
    #header,
    #main,
    #footer {
      inline-size: auto;
      margin-inline: 0;
      max-inline-size: 100%;
    }

    #header:has(~ #main .card-columns) {
      inline-size: auto;
    }

    @media (max-width: 799px) {
      grid-template-columns: minmax(0, 1fr);
      grid-template-rows: auto auto 1fr auto 4em;

      #global-container > :not(.sidenav),
      > #footer {
        grid-column: 1;
      }
    }
  }

  .sidenav {
    background-color: var(--color-ink-lightest);
    block-size: 100dvh;
    border-inline-end: 1px solid var(--color-ink-lighter);
    display: flex;
    flex-direction: column;
    gap: var(--block-space);
    grid-column: 1;
    grid-row: 1 / -1;
    inset-block-start: 0;
    overflow-y: auto;
    padding-block: calc(var(--block-space) + var(--custom-safe-inset-top)) var(--block-space);
    padding-inline: calc(var(--inline-space) + var(--custom-safe-inset-left)) var(--inline-space);
    position: sticky;
    text-align: start;
    z-index: var(--z-nav);

    @media (max-width: 799px) {
      align-items: center;
      block-size: auto;
      border-block-end: 1px solid var(--color-ink-lighter);
      border-inline-end: 0;
      flex-direction: row;
      grid-row: auto;
      overflow-x: auto;
      overflow-y: visible;
      padding-block: calc(var(--block-space-half) + var(--custom-safe-inset-top)) var(--block-space-half);
      position: relative;
    }
  }

  .sidenav__logo {
    color: var(--color-ink);
    flex-shrink: 0;
    padding-inline: 0.5em;
  }

  .sidenav__nav {
    display: flex;
    flex: 1;
    flex-direction: column;
    gap: var(--block-space-half);

    @media (max-width: 799px) {
      flex-direction: row;
    }
  }

  .sidenav__list {
    display: flex;
    flex-direction: column;
    gap: 0.15em;
    list-style: none;
    margin: 0;
    padding: 0;

    @media (max-width: 799px) {
      flex-direction: row;
    }
  }

  .sidenav__heading {
    color: var(--color-ink-dark);
    font-size: var(--text-x-small);
    font-weight: 700;
    letter-spacing: 0.06em;
    margin: var(--block-space-half) 0 0;
    padding-inline: 0.75em;
    text-transform: uppercase;

    @media (max-width: 799px) {
      display: none;
    }
  }

  .sidenav__link {
    --icon-size: 1.05em;

    align-items: center;
    border-radius: var(--radius-control);
    color: var(--color-ink);
    display: flex;
    font-size: var(--text-small);
    font-weight: 600;
    gap: 0.65em;
    padding: 0.45em 0.75em;
    text-decoration: none;
    white-space: nowrap;

    .icon {
      opacity: 0.7;
    }

    &:hover {
      background-color: var(--color-ink-lighter);
    }

    &:focus-visible {
      outline: 2px solid var(--color-link);
      outline-offset: 1px;
    }

    &[aria-current="page"] {
      background-color: var(--color-selected);
      color: var(--color-ink);

      .icon {
        opacity: 1;
      }
    }
  }

  .sidenav__foot {
    border-block-start: 1px solid var(--color-ink-lighter);
    display: flex;
    flex-direction: column;
    gap: var(--block-space-half);
    padding-block-start: var(--block-space-half);

    .nav-filter {
      justify-content: flex-start;
    }

    @media (max-width: 799px) {
      align-items: center;
      border-block-start: 0;
      flex-direction: row;
      padding-block-start: 0;
    }
  }

  .sidenav__tools {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 0.15em;

    @media (max-width: 799px) {
      flex-wrap: nowrap;
    }
  }

  .sidenav__tools [aria-current="page"] {
    background-color: var(--color-selected);
    border-radius: var(--radius-control);
  }
}

/* "/" and "?" live on the keyboard, not in the nav: both stay on the page so their keys work,
/* out of sight until used. The filter field shows while it's focused or holding text. */
@layer components {
  .sidenav .nav-filter:not(:focus-within, :has(.nav-filter__input:not(:placeholder-shown))),
  .sidenav [data-keys="?"] {
    block-size: 1px;
    clip-path: inset(50%);
    inline-size: 1px;
    overflow: hidden;
    position: absolute;
  }
}

/* Collapsed ([): the nav narrows to its icons; each keeps its name as a tooltip. */
@layer components {
  html[data-sidenav="collapsed"] body.with-sidenav {
    --sidenav-width: 3.75rem;

    @media (min-width: 800px) {
      .sidenav {
        align-items: center;
        padding-inline: 0.5rem;
      }

      .sidenav__logo,
      .sidenav__heading,
      .sidenav__label {
        display: none !important;
      }

      .sidenav__nav { align-items: center; }
      .sidenav__list + .sidenav__list { border-block-start: 1px solid var(--color-ink-lighter); padding-block-start: var(--block-space-half); }

      .sidenav__link {
        justify-content: center;
        padding: 0.55em;
      }

      .sidenav__foot { align-items: center; }
      .sidenav__tools { flex-direction: column; }
      .sidenav__collapse .icon { transform: scaleX(-1); }
    }
  }

  .sidenav__collapse {
    @media (max-width: 799px) { display: none; }
  }
}