/* Sidebar layout */

.sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  transition: width 0.2s ease, opacity 0.2s ease;
}

.sidebar--collapsed {
  width: 0;
  opacity: 0;
  border-right: none;
  pointer-events: none;
}

/* Mobile: sidebar overlays instead of pushing content */
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 64px;
    left: 0;
    bottom: 0;
    z-index: 8;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.1);
  }
}