/* ============================================
   SIDEBAR — Department navigation
   ============================================ */

.app-body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ---- Sidebar ---- */
.sidebar {
  width: 220px;
  min-width: 220px;
  background: var(--surface-primary);
  border-right: 1px solid var(--border-primary);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transition: background-color var(--transition-slow), border-color var(--transition-slow);
}

.sidebar__section {
  padding: var(--space-3) var(--space-3);
}

.sidebar__section-title {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-1);
}

.sidebar__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: 8px 12px;
  background: none;
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar__item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.sidebar__item.is-active {
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 600;
}

.sidebar__item-icon {
  font-size: 1rem;
  line-height: 1;
  flex-shrink: 0;
}

.sidebar__item-count {
  margin-left: auto;
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* Add board button */
.sidebar__add {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: 6px 12px;
  background: none;
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-tertiary);
  font-size: 0.75rem;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sidebar__add:hover {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

.sidebar__add svg {
  width: 14px;
  height: 14px;
}

/* Workspace info at bottom */
.sidebar__footer {
  margin-top: auto;
  padding: var(--space-3);
  border-top: 1px solid var(--border-secondary);
}

.sidebar__workspace {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  padding: var(--space-2) var(--space-3);
}

.sidebar__workspace-name {
  font-weight: 600;
  color: var(--text-secondary);
}

.sidebar__invite-code {
  font-family: monospace;
  font-size: 0.6875rem;
  color: var(--accent);
  cursor: pointer;
}

.sidebar__invite-code:hover {
  text-decoration: underline;
}

/* ---- Board content area ---- */
.board-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.board-area__header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  border-bottom: 1px solid var(--border-secondary);
  background: var(--bg-primary);
}

.board-area__title {
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.board-area__title-icon {
  font-size: 1.125rem;
}

/* ---- Mobile ---- */
@media (max-width: 768px) {
  .sidebar {
    display: none;
  }
  .sidebar.is-open {
    display: flex;
    position: fixed;
    left: 0;
    top: 60px;
    bottom: 0;
    z-index: var(--z-modal);
    box-shadow: var(--shadow-xl);
  }
}