.mai-calculator{background:#f9f9f9;padding:20px;border-radius:10px;max-width:500px;margin:20px auto;font-family:Arial,sans-serif}.mai-calculator input{width:100%;margin-bottom:10px}.mai-calculator button{background:#ff6f00;color:white;padding:10px 15px;border:none;border-radius:5px;cursor:pointer}.mai-calculator h3{margin-top:20px}