lateY(20px);
                visibility: hidden;
                transition: opacity 0.6s ease-out, transform 0.6s ease-out;
                will-change: opacity, visibility, transform;
            }

            .mindmap-item.fade-in-section.is-visible {
                opacity: 1;
                transform: translateY(0);
                visibility: visible;
            }

            .header {
                background: var(--card-background);
                justify-content: space-between;
            