/*
 * Navigation Item Component
 * For sidebars and navigation menus - Edge Design
 */

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  margin: 0.25rem 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--theme-text-primary);
  text-decoration: none;
  border-radius: 0;
  cursor: pointer;
  transition: all var(--transition-speed);
  position: relative;
  border-left: 3px solid transparent;
  transform: translateX(0);
}

.nav-item:hover {
  background-color: rgba(0, 0, 0, 0.02);
  border-left-color: var(--theme-border);
}

.nav-item.is-active {
  background-color: rgba(0, 0, 0, 0.05);
  color: var(--theme-text-primary);
  border-left-color: var(--theme-highlight);
  font-weight: 500;
}

.nav-item.is-disabled {
  opacity: var(--alpha-disabled);
  cursor: not-allowed;
  pointer-events: none;
}

/* Nav Item Icon */
.nav-item-icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--theme-text-secondary);
}

.nav-item.is-active .nav-item-icon {
  color: var(--theme-accent-contrast);
}

/* Nav Item Label */
.nav-item-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Nav Item Badge */
.nav-item-badge {
  flex-shrink: 0;
  padding: 0.125rem 0.375rem;
  font-size: 0.625rem;
  font-weight: 600;
  line-height: 1;
  color: var(--theme-accent-contrast);
  background-color: var(--theme-accent);
  border-radius: 9999px;
}

/* Nav Item Indicator */
.nav-item-indicator {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 1.5rem;
  background-color: var(--theme-accent);
  border-radius: 0 2px 2px 0;
  opacity: 0;
  transition: opacity var(--transition-speed);
}

.nav-item.is-active .nav-item-indicator {
  opacity: 1;
}

/* Nav Group */
.nav-group {
  margin-bottom: 1.5rem;
}

.nav-group-title {
  padding: 0.5rem 0.75rem 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--theme-text-secondary);
}

.nav-group-items {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

/* Nav Divider */
.nav-divider {
  height: 1px;
  margin: 0.75rem 0;
  background-color: var(--theme-border);
}

/* Collapsible Nav */
.nav-item-collapsible {
  position: relative;
}

.nav-item-collapsible-toggle {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%) rotate(0);
  transition: transform var(--transition-speed);
}

.nav-item-collapsible.is-expanded .nav-item-collapsible-toggle {
  transform: translateY(-50%) rotate(90deg);
}

.nav-item-children {
  display: none;
  padding-left: 2rem;
  margin-top: 0.125rem;
}

.nav-item-collapsible.is-expanded .nav-item-children {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

/* Breadcrumb Nav */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
}

.breadcrumb-item {
  color: var(--theme-text-secondary);
  text-decoration: none;
  transition: color var(--transition-speed);
}

.breadcrumb-item:hover {
  color: var(--theme-text-primary);
}

.breadcrumb-item.is-active {
  color: var(--theme-text-primary);
  font-weight: 500;
}

.breadcrumb-separator {
  color: var(--theme-text-secondary);
  user-select: none;
}