.header {
    width: 100%;
    height: 80px;
    align-content: center;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    padding: 16px 20px;
}

.menu-toggle {
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    color: var(--text-color, #fff);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 0.4rem;
    transition: opacity 0.2s ease;
    z-index: 1;
}

.menu-toggle:hover {
    opacity: 0.7;
}

@media (max-width: 768px) {
    .header{
        display: flex;
        justify-content: space-between;
    }
}

/* 🔘 Overlay mobile */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 90;
  }
  
  .sidebar-overlay.visible {
    opacity: 1;
    pointer-events: all;
  }
  
  /* 🧱 Sidebar ouverte */
  .sidebar.open {
    transform: translateX(0);
  }
  
  /* ❌ Empêche de scroller quand le menu est ouvert */
  body.no-scroll {
    overflow: hidden;
  }