/* Fade-up on scroll */
.fade-up { opacity: 0; transform: translateY(28px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: none; }
.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }

/* Nav scrolled */
.nav.scrolled { box-shadow: 0 4px 40px rgba(0,0,0,0.4); }

/* Glow pulse */
@keyframes glowPulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50%       { opacity: 1;   transform: scale(1.05); }
}
.glow-pulse { animation: glowPulse 4s ease-in-out infinite; }