.sidebar {
  background: #111827;
  color: #f9fafb;
  padding: 12px;
  box-sizing: border-box;
  position: sticky;
  top: 0;
  height: 100vh;
  transition: transform 0.3s ease, width 0.3s ease;
  width: 220px;
}

body.sidebar-collapsed .sidebar {
  width: 56px;
  overflow: hidden;
}

.sidebar h2 {
  margin: 0 0 12px 0;
  font-size: 1rem;
  font-weight: 500;
  color: #d1d5db;
}

.sidebar .user-info {
  margin: 4px 0 12px 0;
  font-size: 0.75rem;
  color: #9ca3af;
}

.sidebar nav a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #d1d5db;
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 400;
  transition: background 0.2s ease, color 0.2s ease;
}

.sidebar nav a:hover {
  background: #1f2937;
  color: #fff;
}

.sidebar nav a.active {
  background: var(--primary);
  color: #fff;
}
.btn_menu{  
  background: #6b7280;
  color: var(--secondary);
  border: 1px solid var(--border);}
.btn_menu:hover {
  background: #f3f4f6;
  color: var(--secondary-hover);
}

@media (max-width: 900px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 220px;
    transform: translateX(-100%);
    z-index: 300;
  }
  body.sidebar-open .sidebar {
    transform: translateX(0);
  }

}
@media (min-width: 601px) {
    .btn_menu{
    display: none;
  }
}