.departments-page {
  display: grid;
  gap: 18px;
}

.departments-layout {
  display: grid;
  grid-template-columns: minmax(250px, 0.8fr) minmax(320px, 1.2fr);
  gap: 18px;
  align-items: start;
}

.departments-tree-region {
  max-height: calc(100vh - 240px);
  overflow: auto;
}

.departments-tree,
.departments-tree ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.departments-tree ul {
  margin-inline-start: 18px;
  padding-inline-start: 12px;
  border-inline-start: 1px solid var(--color-border);
}

.department-treeitem {
  width: 100%;
  min-height: 40px;
  display: block;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-medium);
  color: var(--color-text-muted);
  background: transparent;
  text-align: start;
  overflow-wrap: anywhere;
  cursor: pointer;
}

.department-treeitem:hover,
.department-treeitem[aria-selected="true"] {
  border-color: var(--color-border);
  color: var(--color-text);
  background: var(--color-surface-hover);
}

.department-details {
  display: grid;
  grid-template-columns: minmax(110px, 0.35fr) minmax(0, 1fr);
  gap: 10px 16px;
  margin: 0;
}

.department-details dt {
  color: var(--color-text-muted);
}

.department-details dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.department-language-list {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
}

.department-language-list li {
  padding: 4px 8px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface-soft);
}

.department-dialog {
  width: min(620px, calc(100% - 32px));
  max-height: calc(100vh - 32px);
  padding: 20px;
  overflow: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  color: var(--color-text);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
}

.department-dialog::backdrop {
  background: color-mix(in srgb, var(--color-background) 76%, transparent);
}

.department-dialog[open] {
  display: grid;
  gap: 18px;
}

.department-language-fieldset {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.department-language-fieldset legend {
  margin-bottom: 7px;
  color: var(--color-text-muted);
}

.department-language-checklist {
  display: grid;
  gap: 8px;
  max-height: 220px;
  padding: 10px;
  overflow: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-surface-soft);
}

.department-language-choice {
  display: flex;
  gap: 9px;
  align-items: center;
}

.department-language-choice input {
  flex: none;
}

.department-delete-reason {
  margin: 0;
}

@media (max-width: 760px) {
  .departments-layout {
    grid-template-columns: 1fr;
  }

  .departments-tree-region {
    max-height: 48vh;
  }

  .department-details {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .department-details dd + dt {
    margin-top: 8px;
  }
}