.button-ai { background-color: blue !important; border: 2px solid white !important; color: yellow !important; position: relative; overflow: hidden; }
.button-ai::before { content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%; background-color: rgba(255, 255, 255, 0.7); transition: left 0.3s ease; }
.button-ai:hover::before { left: 0; }