/* Moved from the inline <style> block in index.html */
    .fade-in-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
    .fade-in-up.visible { opacity: 1; transform: translateY(0); }
    .fade-in-up:nth-child(2) { transition-delay: 0.1s; }
    .fade-in-up:nth-child(3) { transition-delay: 0.2s; }
    .fade-in-up:nth-child(4) { transition-delay: 0.3s; }