/* Sidebar Navigation */
.sidebar {
  width: 250px;
  background-color: #2c3e50;
  color: white;
  padding: 0;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid #34495e;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  color: #3498db;
  flex-shrink: 0;
}

.title-container {
  display: flex;
  flex-direction: column;
}

.sidebar-header h1 {
  font-size: 20px;
  font-weight: 700;
  color: #ecf0f1;
  line-height: 1.2;
  margin-bottom: 2px;
}

.sidebar-header .subtitle {
  font-size: 12px;
  color: #95a5a6;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.nav-menu li {
  border-bottom: 1px solid #34495e;
}

.nav-menu-bottom {
  margin-top: auto;
}

.nav-section-header {
  padding: 20px 20px 10px 20px;
  margin-top: 20px;
  border-bottom: none !important;
}

.nav-section-header span {
  font-size: 11px;
  font-weight: 600;
  color: #95a5a6;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 20px;
  color: #ecf0f1;
  text-decoration: none;
  transition: all 0.3s ease;
}

.nav-link:hover {
  background-color: #34495e;
  color: #3498db;
}

.nav-link:hover .nav-icon {
  color: #3498db;
}

.nav-link.active {
  background-color: #34495e;
  color: #3498db;
  border-left: 4px solid #3498db;
  padding-left: 16px;
}

.nav-link.active .nav-icon {
  color: #3498db;
}

.nav-icon {
  width: 20px;
  height: 20px;
  color: #95a5a6;
  flex-shrink: 0;
  transition: color 0.3s ease;
}

/* Responsive Design */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }
}