/* Highlight text effect */ .highlight { color: #66d38b; position: relative; } .highlight::after { content: ''; position: absolute; bottom: 2px; left: 0; right: 0; height: 6px; background: rgba(102, 211, 139, 0.2); z-index: -1; } /* Large button */ .btn-lg { padding: 16px 32px; font-size: 1.1rem; font-weight: 600; }