.hero-gradient{background:linear-gradient(135deg,#667eea,#764ba2)}.scroll-smooth{scroll-behavior:smooth}.navbar-scrolled{background-color:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 4px 6px -1px #0000001a}.fade-in{opacity:0;transform:translateY(30px);transition:all .6s ease}.fade-in.visible{opacity:1;transform:translateY(0)}