/* Sidebar component — maps to powerappsui.com "Sidebar" (Side navigation - Customisable) */

.sidebar {
  position: fixed;
  top: 0;
  inset-inline-start: 0;
  bottom: 0;
  width: var(--sidebar-width-collapsed);
  background: var(--surface-sidebar);
  border-inline-end: 1px solid var(--surface-sidebar-border);
  z-index: var(--z-sidebar);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: width var(--transition-shell);
}

.sidebar.expanded {
  width: var(--sidebar-width-expanded);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: var(--header-height);
  flex-shrink: 0;
  padding: 0 var(--space-3);
  overflow: hidden;
}

.sidebar-brand-icon {
  height: 28px;
  width: auto;
  flex-shrink: 0;
}

.sidebar-brand-wordmark {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  white-space: nowrap;
  opacity: 0;
  width: 0;
  transition: opacity var(--transition-shell);
}

.sidebar.expanded .sidebar-brand-wordmark {
  opacity: 1;
  width: auto;
}

.sidebar-toggle-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) 0 var(--space-3);
  flex-shrink: 0;
}

.sidebar-pin-btn {
  display: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
  background: var(--surface-card);
  color: var(--text-secondary);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 13px;
}

.sidebar-pin-btn:hover {
  background: var(--surface-hover);
  color: var(--text-primary);
}

.sidebar-pin-btn.pinned {
  color: var(--color-green-700);
  border-color: var(--color-green-300);
  background: var(--color-green-50);
}

/* The pin only makes sense once the sidebar is actually expanded. */
.sidebar.expanded .sidebar-pin-btn {
  display: flex;
}

.sidebar-toggle {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
  background: var(--surface-card);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-shell), transform var(--transition-shell);
}

.sidebar-toggle:hover {
  background: var(--surface-hover);
  color: var(--text-primary);
}

.sidebar.expanded .sidebar-toggle i {
  transform: rotate(180deg);
}

.sidebar-toggle i {
  transition: transform var(--transition-shell);
  font-size: 13px;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-2);
}

.sidebar-nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  height: 40px;
  padding: 0 var(--space-3);
  margin-bottom: var(--space-1);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  white-space: nowrap;
}

.sidebar-nav-item:hover {
  background: var(--surface-hover);
  color: var(--text-primary);
}

.sidebar-nav-item.active {
  background: var(--surface-active);
  color: var(--color-green-700);
  font-weight: var(--font-weight-semibold);
}

.sidebar-nav-item.active::before {
  content: '';
  position: absolute;
  inset-inline-start: -8px;
  top: 6px;
  bottom: 6px;
  width: 3px;
  border-radius: var(--radius-full);
  background: var(--color-green-600);
}

.sidebar-nav-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.sidebar-nav-item span {
  opacity: 0;
  transition: opacity var(--transition-shell);
  font-size: var(--font-size-md);
}

.sidebar.expanded .sidebar-nav-item span {
  opacity: 1;
}

/* Tooltip shown only while collapsed */
.sidebar-tooltip {
  position: absolute;
  inset-inline-start: calc(var(--sidebar-width-collapsed) + var(--space-2));
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-neutral-900);
  color: var(--color-neutral-0);
  font-size: var(--font-size-xs);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease;
  z-index: var(--z-dropdown);
}

.sidebar:not(.expanded) .sidebar-nav-item:hover .sidebar-tooltip {
  opacity: 1;
}

.sidebar.expanded .sidebar-tooltip {
  display: none;
}