/**
 * AM Site Solutions Portal - Sidebar Navigation Styles
 * Collapsible sidebar with logo, menu, and user profile
 */

/* ========================================
   SIDEBAR CONTAINER
   ======================================== */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background-color: var(--primary);
  border-right: none;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  z-index: var(--z-sidebar);
  transition: width var(--transition-slow), transform var(--transition-slow);
  overflow: hidden;
}

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

/* ========================================
   SIDEBAR HEADER
   ======================================== */
.sidebar-header {
  height: var(--sidebar-header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: none;
  flex-shrink: 0;
  background-color: var(--white);
}

.sidebar-logo {
  max-width: 150px;
  max-height: 50px;
  height: auto;
  transition: opacity var(--transition-base);
  cursor: pointer;
}

.sidebar.collapsed .sidebar-logo {
  opacity: 0;
  width: 0;
}

.sidebar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--grey-medium);
  cursor: pointer;
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
  background-color: var(--grey-lighter);
  color: var(--primary);
}

.sidebar.collapsed .sidebar-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ========================================
   SIDEBAR NAVIGATION
   ======================================== */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--spacing-md) 0;
}

.sidebar-nav::-webkit-scrollbar {
  width: 6px;
}

.sidebar-nav::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-nav::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-full);
}

.sidebar-nav::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.5);
}

.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-item {
  margin-bottom: var(--spacing-xs);
}

.nav-link {
  display: flex;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  position: relative;
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--white);
}

.nav-link.active {
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--white);
  font-weight: var(--font-weight-semibold);
}

.nav-link.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--white);
}

.nav-icon {
  width: 24px;
  height: 24px;
  margin-right: var(--spacing-md);
  flex-shrink: 0;
  stroke-width: 2;
}

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

.nav-text {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: opacity var(--transition-base);
}

.sidebar.collapsed .nav-text {
  opacity: 0;
  width: 0;
}

/* ========================================
   ACCORDION SECTIONS
   ======================================== */
.nav-section {
  margin-bottom: var(--spacing-xs);
}

.nav-accordion {
  position: relative;
}

.nav-accordion .nav-arrow {
  margin-left: auto;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.nav-accordion.expanded .nav-arrow {
  transform: rotate(180deg);
}

.sidebar.collapsed .nav-arrow {
  opacity: 0;
  width: 0;
}

.nav-submenu {
  list-style: none;
  padding: 0;
  margin: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.nav-accordion.expanded + .nav-submenu {
  max-height: 500px;
}

.nav-subitem {
  margin: 0;
}

.nav-subitem .nav-link {
  padding-left: calc(var(--spacing-lg) + 24px + var(--spacing-md));
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
}

.sidebar.collapsed .nav-submenu {
  display: none;
}

/* ========================================
   SIDEBAR FOOTER
   ======================================== */
.sidebar-footer {
  height: var(--sidebar-footer-height);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  flex-shrink: 0;
  background-color: rgba(0, 0, 0, 0.1);
}

.user-profile {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex: 1;
  min-width: 0;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.user-info {
  flex: 1;
  min-width: 0;
  transition: opacity var(--transition-base);
}

.sidebar.collapsed .user-info {
  opacity: 0;
  width: 0;
}

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

.user-role {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.7);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-logout {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.3);
  background-color: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.btn-logout:hover {
  background-color: var(--danger);
  border-color: var(--danger);
  color: var(--white);
}

.sidebar.collapsed .btn-logout {
  width: 40px;
  height: 40px;
}

/* ========================================
   COLLAPSED STATE TOOLTIPS
   ======================================== */
.sidebar.collapsed .nav-link {
  justify-content: center;
  position: relative;
}

.sidebar.collapsed .nav-link:hover::after {
  content: attr(title);
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  margin-left: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--grey-darkest);
  color: var(--white);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  border-radius: var(--radius-sm);
  z-index: 1000;
  pointer-events: none;
  opacity: 0.9;
}

/* ========================================
   SIDEBAR VERSION
   ======================================== */
.sidebar-version {
  text-align: center;
  padding: 0.25rem 0;
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.5);
  flex-shrink: 0;
  background-color: rgba(0, 0, 0, 0.1);
}