.navbar-custom .nav-link::after {content: '';position: absolute;bottom: 0;left: 16px;width: 0%;height: 2px;background-color: var(--accent);transition: var(--transition);}.ripple-btn {position: relative;overflow: hidden;}.ripple-btn .ripple-effect {position: absolute;border-radius: 50%;background-color: rgba(254, 254, 254, 0.4);transform: scale(0);animation: rippleAnimation 0.6s linear;pointer-events: none;}@keyframes rippleAnimation {to {transform: scale(4);opacity: 0;}}