/* Sidebar container */
.sidebar {
  position: fixed;
  top: 80px;
  left: 0;
  width: 220px;
  height: calc(100vh - 80px);
  background-color: #1e293b;
  color: white;
  transition: width 0.3s ease;
  z-index: 1000;
  overflow-y: auto;
}

/* Collapsed state */
.sidebar.collapsed {
  width: 60px;
}

.sidebar-toggle {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 20px;
  background: #0f172a;
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  color: white;
  transition: transform 0.3s ease;
}

.sidebar-toggle:hover {
  transform: rotate(90deg);
}

.sidebar-header {
  text-align: center;
  padding: 50px 10px 10px;
  font-weight: bold;
  font-size: 1.2rem;
  border-bottom: 1px solid #334155;
}

.sidebar-links {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  height: calc(100% - 140px);
}

/* Menu item links */
.menu-button {
  background: transparent;
  color: #e2e8f0;
  padding: 10px 12px;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.menu-button:hover {
  background-color: #334155;
  transform: scale(1.05);
}

.menu-button.active-link {
  background-color: #0ea5e9;
  color: white;
}

/* Submenu container */
.menu-group {
  margin-bottom: 10px;
}

.menu-toggle {
  background: none;
  color: #f1f5f9;
  font-weight: bold;
  padding: 10px 12px;
  border: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  border-radius: 6px;
  transition: background-color 0.3s;
}

.menu-toggle:hover {
  background-color: #334155;
}

.submenu {
  background-color: #334155;
  margin-left: 10px;
  display: none;
  flex-direction: column;
  border-radius: 4px;
}

.submenu.open {
  display: flex;
}

.submenu-item {
  display: block;
  color: #cbd5e1;
  padding: 8px 14px;
  text-decoration: none;
  border-radius: 4px;
}

.submenu-item:hover {
  background-color: #475569;
}

/* Collapsed mode */
.sidebar.collapsed .sidebar-header h3 {
  display: none;
}

.sidebar.collapsed .sidebar-links {
  padding-left: 8px;
}

.sidebar.collapsed .menu-button {
  padding: 10px;
  font-size: 0;
}

.sidebar.collapsed .menu-button::before {
  font-size: 16px;
  content: '📄';
}

.sidebar.collapsed .menu-toggle {
  font-size: 0;
  padding: 10px;
}