/* Sidebar Styles */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  height: 100vh;
  overflow-y: auto;
  position: fixed;
  left: 0;
  top: 0;
  transition: width var(--transition-speed), transform var(--transition-speed);
  z-index: 1000;
  box-shadow: 2px 0 10px var(--shadow);
}

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

.sidebar-header {
  display: flex;
  align-items: center;
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-header h3 {
  margin: 0 0 0 0.5rem;
  flex-grow: 1;
  transition: opacity var(--transition-speed);
}

.sidebar.collapsed .sidebar-header h3 {
  opacity: 0;
  width: 0;
  height: 0;
  overflow: hidden;
}

.logo-small {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.sidebar-toggle {
  background: transparent;
  border: none;
  color: var(--secondary-text);
  font-size: 1rem;
  padding: 0.5rem;
  border-radius: 50%;
  transition: background-color var(--transition-speed);
}

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

.sidebar-content {
  padding: 1rem;
}

.sidebar-section {
  margin-bottom: 1.5rem;
}

.sidebar-section h4 {
  color: var(--secondary-text);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: opacity var(--transition-speed);
}

.sidebar.collapsed .sidebar-section h4 {
  opacity: 0;
  height: 0;
  margin: 0;
  overflow: hidden;
}

.sidebar-menu {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  list-style: none;
}

.menu-item {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  color: var(--text);
  text-decoration: none;
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: background-color var(--transition-speed);
  list-style: none;
}

.menu-item:hover {
  background-color: var(--hover);
  text-decoration: none;
}

.menu-item i {
  margin-right: 0.75rem;
  width: 20px;
  text-align: center;
  font-size: 1.25rem;
}

.sidebar.collapsed .menu-item span,
.sidebar.collapsed .dropdown-toggle span,
.sidebar.collapsed .fa-chevron-down {
  opacity: 0;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

.dropdown-toggle {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dropdown-toggle .fa-chevron-down {
  transition: transform var(--transition-speed);
}

.dropdown.open .fa-chevron-down {
  transform: rotate(180deg);
}

.dropdown-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-speed);
}

.dropdown-menu li {
  list-style: none;
}

.dropdown.open .dropdown-menu {
  max-height: 500px;
}

.dropdown-menu li a {
  padding-left: 2.5rem;
  padding: 0.75rem 0.75rem 0.75rem 2.5rem;
  display: flex;
  align-items: center;
  color: var(--text);
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: background-color var(--transition-speed);
}

.dropdown-menu li a:hover {
  background-color: var(--hover);
  text-decoration: none;
}

.dropdown-menu li a i {
  margin-right: 0.75rem;
  width: 20px;
  text-align: center;
}

.sidebar.collapsed .dropdown-menu {
  position: absolute;
  left: var(--sidebar-collapsed-width);
  top: 0;
  width: 200px;
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  box-shadow: 0 5px 15px var(--shadow);
  max-height: 0;
  overflow: hidden;
  z-index: 10;
}

.sidebar.collapsed .dropdown:hover .dropdown-menu {
  max-height: 500px;
  padding: 0.5rem 0;
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    z-index: 1010;
  }
  
  .sidebar.active {
    transform: translateX(0);
  }
}