/* Sidebar */
sidebar {
  width: 250px;
  background-color: #2c3e50;
  padding: 20px 0;
  box-shadow: 2px 0 8px rgba(0,0,0,0.1);
  position: fixed;
  height: calc(100vh - 70px);
  overflow-y: auto;
  top: 70px;
  z-index: 99;
}

sidebar nav {
  display: flex;
  flex-direction: column;
  gap: 0;
}

sidebar nav a {
  color: #ecf0f1;
  text-decoration: none;
  padding: 15px 25px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all 0.3s ease;
  font-size: 14px;
  border-left: 4px solid transparent;
  font-weight: 500;
}

sidebar nav a:hover {
  background-color: #34495e;
  border-left-color: #667eea;
  padding-left: 30px;
}

sidebar nav a.active {
  background-color: #667eea;
  border-left-color: #667eea;
  font-weight: 600;
}

sidebar nav a i {
  width: 20px;
  text-align: center;
}

/* Sidebar Scrollbar */
sidebar::-webkit-scrollbar {
  width: 6px;
}

sidebar::-webkit-scrollbar-track {
  background: #2c3e50;
}

sidebar::-webkit-scrollbar-thumb {
  background: #667eea;
  border-radius: 3px;
}

sidebar::-webkit-scrollbar-thumb:hover {
  background: #764ba2;
}

@media (max-width: 768px) {
  sidebar {
    width: 200px;
  }

  sidebar nav a {
    padding: 12px 15px;
    font-size: 12px;
  }

  sidebar nav a:hover {
    padding-left: 20px;
  }
}

@media (max-width: 600px) {
  sidebar {
    width: 150px;
  }

  sidebar nav a {
    padding: 10px 10px;
    font-size: 11px;
  }

  sidebar nav a i {
    width: 18px;
  }
}