body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f2f2f2;
    margin: 0;
}

.container {
    background-color: #ffffff;
    width: 320px;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.input1, .input2 {
    width: 90%;
    height: 35px;
    padding: 5px 10px;
    margin: 10px auto;
    display: block;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
}

select {
    width: 95%;
    height: 35px;
    margin: 15px auto;
    display: block;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
    padding-left: 10px;
}

button {
    width: 100%;
    height: 45px;
    margin-top: 20px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #45a049;
}

#resultado {
    margin-top: 20px;
    text-align: center;
    font-size: 24px;
    font-weight: bold;
    color: #333;
}