.star{position:absolute;background-color:white;border-radius:50%;animation:twinkle 5s infinite}@keyframes twinkle{0%,100%{opacity:0.2}50%{opacity:1}}.cosmic-gradient{background:linear-gradient(135deg,#0c0e2a 0%,#1a237e 50%,#311b92 100%)}.nav-link{position:relative;overflow:hidden;transition:all 0.3s ease}.nav-link::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:linear-gradient(90deg,#29b6f6,#ab47bc);transition:width 0.3s ease}.nav-link:hover::after{width:100%}.mobile-menu{max-height:0;overflow:hidden;transition:max-height 0.5s ease}.mobile-menu.open{max-height:500px}.service-card{transition:transform 0.3s ease,box-shadow 0.3s ease}.service-card:hover{transform:translateY(-5px);box-shadow:0 10px 25px rgba(0,0,0,0.2)}.service-card{transition:transform 0.3s ease,box-shadow 0.3s ease}.service-card:hover{transform:translateY(-5px);box-shadow:0 10px 25px rgba(0,0,0,0.2)}