/* ==========================================================================
   AIRH Sidebar — Futuristic Neumorphism
   ========================================================================== */

/* ---------------------------------------------------------------------------
   Sidebar Container
   --------------------------------------------------------------------------- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--color-bg-sidebar);
  border-right: none;
  display: flex;
  flex-direction: column;
  z-index: var(--z-sidebar);
  transition: width var(--transition-panel);
  overflow: hidden;
  box-shadow: 4px 0 14px var(--neu-shadow-dark);
}

/* ---------------------------------------------------------------------------
   Collapsed State
   --------------------------------------------------------------------------- */
.sidebar.is-collapsed {
  width: var(--sidebar-collapsed);
}

.sidebar.is-collapsed .sidebar__logo-text,
.sidebar.is-collapsed .sidebar__nav-label,
.sidebar.is-collapsed .sidebar__section-title,
.sidebar.is-collapsed .sidebar__user-info {
  opacity: 0;
  visibility: hidden;
  width: 0;
  overflow: hidden;
}

.sidebar.is-collapsed .sidebar__nav-item {
  justify-content: center;
  padding-left: 0;
  padding-right: 0;
}

.sidebar.is-collapsed .sidebar__nav-icon {
  margin-right: 0;
}

.sidebar.is-collapsed .sidebar__collapse-btn .sidebar__collapse-icon {
  transform: rotate(180deg);
}

/* ---------------------------------------------------------------------------
   Logo Area
   --------------------------------------------------------------------------- */
.sidebar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-5);
  height: var(--topbar-height);
  flex-shrink: 0;
  border-bottom: none;
  margin-bottom: var(--space-2);
}

.sidebar__logo-mark {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  flex-shrink: 0;
  filter: drop-shadow(0 1px 1px rgba(0,0,0,.15));
}

.sidebar__logo-text {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  white-space: nowrap;
  transition: opacity var(--transition-base);
  letter-spacing: -0.02em;
}

/* ---------------------------------------------------------------------------
   Navigation
   --------------------------------------------------------------------------- */
.sidebar__nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--space-2) var(--space-3);
}

/* Section Title */
.sidebar__section-title {
  font-size: 10px;
  font-weight: 700;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: var(--space-4) var(--space-3) var(--space-2);
  white-space: nowrap;
  transition: opacity var(--transition-base);
}

/* Section Divider */
.sidebar__divider {
  height: 0;
  margin: var(--space-2) var(--space-4);
  border: none;
  border-bottom: 1px solid var(--color-border-light);
}

/* ---------------------------------------------------------------------------
   Collapsible Groups (Accordion)
   --------------------------------------------------------------------------- */
.sidebar__group {
  margin-bottom: 2px;
}

.sidebar__group-toggle {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 9px var(--space-3);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  border: none;
  background: transparent;
  text-align: left;
}

.sidebar__group-toggle:hover {
  color: var(--color-text-primary);
  box-shadow: var(--neu-inset-sm);
}

.sidebar__group.is-open > .sidebar__group-toggle {
  color: var(--color-accent);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding-top: var(--space-4);
  padding-bottom: var(--space-1);
  opacity: 0.7;
}

.sidebar__group.is-open > .sidebar__group-toggle .sidebar__nav-icon {
  display: none;
}

.sidebar__group-arrow {
  margin-left: auto;
  display: flex;
  align-items: center;
  opacity: 0.4;
  transition: transform 0.25s ease;
}

.sidebar__group.is-open > .sidebar__group-toggle .sidebar__group-arrow {
  transform: rotate(180deg);
  opacity: 0.7;
}

.sidebar__group-children {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.sidebar__group.is-open > .sidebar__group-children {
  max-height: 500px;
}

.sidebar__nav-item--child {
  padding-left: calc(var(--space-3) + 12px);
  font-size: calc(var(--text-sm) - 0.5px);
}

.sidebar__nav-item--child .sidebar__nav-icon {
  width: 16px;
  height: 16px;
  margin-right: var(--space-2);
}

/* Collapsed state: hide group children + arrow */
.sidebar.is-collapsed .sidebar__group-children {
  display: none;
}

.sidebar.is-collapsed .sidebar__group-arrow {
  display: none;
}

.sidebar.is-collapsed .sidebar__group-toggle {
  justify-content: center;
  padding-left: 0;
  padding-right: 0;
}

.sidebar.is-collapsed .sidebar__group-toggle .sidebar__nav-label {
  opacity: 0;
  visibility: hidden;
  width: 0;
  overflow: hidden;
}

.sidebar.is-collapsed .sidebar__group-toggle .sidebar__nav-icon {
  margin-right: 0;
}

/* ---------------------------------------------------------------------------
   Nav Items — Neumorphic
   --------------------------------------------------------------------------- */
.sidebar__nav-item {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 9px var(--space-3);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  position: relative;
  text-decoration: none;
  border: none;
  background: transparent;
  margin-bottom: 2px;
}

.sidebar__nav-item:hover {
  color: var(--color-text-primary);
  text-decoration: none;
  box-shadow: var(--neu-inset-sm);
}

.sidebar__nav-item.is-active {
  color: var(--color-accent);
  font-weight: var(--weight-semibold);
  box-shadow: var(--neu-inset);
}

.sidebar__nav-item.is-active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 18px;
  background: linear-gradient(180deg, var(--color-accent), #6366f1);
  border-radius: var(--radius-full);
}

/* Nav Icon */
.sidebar__nav-icon {
  width: 20px;
  height: 20px;
  margin-right: var(--space-3);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.6;
  transition: opacity var(--transition-fast),
    margin var(--transition-panel);
}

.sidebar__nav-item:hover .sidebar__nav-icon,
.sidebar__nav-item.is-active .sidebar__nav-icon {
  opacity: 1;
}

/* Nav Label */
.sidebar__nav-label {
  flex: 1;
  transition: opacity var(--transition-base);
}

/* Nav Badge */
.sidebar__nav-badge {
  font-size: 10px;
  font-weight: var(--weight-bold);
  color: #fff;
  background: linear-gradient(135deg, var(--color-accent), #6366f1);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  min-width: 18px;
  text-align: center;
  line-height: 1.4;
  box-shadow: var(--neu-flat);
}

/* ---------------------------------------------------------------------------
   User Area (Bottom) — Neumorphic
   --------------------------------------------------------------------------- */
.sidebar__user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-4);
  margin: var(--space-3);
  margin-top: auto;
  flex-shrink: 0;
  cursor: pointer;
  border-radius: var(--radius-lg);
  box-shadow: var(--neu-raised-sm);
  transition: all 0.2s ease;
}

.sidebar__user:hover {
  box-shadow: var(--neu-raised);
}

.sidebar__user-avatar {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-accent-subtle), rgba(99, 102, 241, 0.1));
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  flex-shrink: 0;
  box-shadow: var(--neu-inset-sm);
}

.sidebar__user-info {
  flex: 1;
  overflow: hidden;
  transition: opacity var(--transition-base);
}

.sidebar__user-name {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar__user-role {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------------------------------------------------------------------------
   Collapse Button — Neumorphic circle
   --------------------------------------------------------------------------- */
.sidebar__collapse-btn {
  position: absolute;
  top: 50%;
  right: -12px;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  background: var(--color-bg-primary);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: calc(var(--z-sidebar) + 1);
  opacity: 0;
  transition: opacity var(--transition-base),
    box-shadow 0.2s ease;
  box-shadow: var(--neu-raised-sm);
}

.sidebar:hover .sidebar__collapse-btn {
  opacity: 1;
}

.sidebar__collapse-btn:hover {
  box-shadow: var(--neu-raised);
}

.sidebar__collapse-btn:active {
  box-shadow: var(--neu-pressed);
}

.sidebar__collapse-icon {
  width: 14px;
  height: 14px;
  color: var(--color-text-secondary);
  transition: transform var(--transition-base);
}

/* ---------------------------------------------------------------------------
   Mobile
   --------------------------------------------------------------------------- */
@media (max-width: 1023px) {
  .sidebar {
    transform: translateX(-100%);
    box-shadow: none;
    transition: transform var(--transition-panel),
      width var(--transition-panel);
  }

  .sidebar.is-open {
    transform: translateX(0);
    box-shadow: var(--shadow-panel);
  }

  .sidebar__collapse-btn {
    display: none;
  }
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: calc(var(--z-sidebar) - 1);
  opacity: 0;
  transition: opacity var(--transition-base);
}

@media (max-width: 1023px) {
  .sidebar-overlay.is-visible {
    display: block;
    opacity: 1;
  }
}