.button-ai { background-color: #8B4513; color: white; padding: 10px 20px; border: none; border-radius: 5px; font-size: 16px; cursor: pointer; font-family: 'Arial', sans-serif; font-weight: bold; text-transform: uppercase; }
.button-ai:hover { background-color: #A0522D; }
.button-ai:active { transform: translateY(1px); }
.button-ai:focus { outline: none; }
.button-ai:disabled { opacity: 0.7; cursor: not-allowed; }