/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.hero-content { animation: fadeInUp 1s ease-out; }
.hero-title { animation: fadeInUp 1s ease-out 0.2s both; }
.hero-subtitle { animation: fadeInUp 1s ease-out 0.4s both; }
.hero-btn { animation: fadeInUp 1s ease-out 0.6s both; }
.card { opacity: 0; animation: fadeInUp 0.6s ease-out forwards; }
.card:nth-child(1) { animation-delay: 0.1s; }
.card:nth-child(2) { animation-delay: 0.2s; }
.card:nth-child(3) { animation-delay: 0.3s; }
.card:nth-child(4) { animation-delay: 0.4s; }
.card:nth-child(5) { animation-delay: 0.5s; }
.card:nth-child(6) { animation-delay: 0.6s; }
.stat-num { animation: pulse 2s ease-in-out infinite; }
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}
.site-header.scrolled {
    background: rgba(13, 27, 42, 0.98);
    box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}
@media (max-width: 768px) {
    .hero-title { font-size: 28px; }
    .hero-subtitle { font-size: 16px; }
    .section { padding: 60px 0; }
}