body {
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    height: 100vh;
    background-color: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
}

div {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    text-align: center;
    width: 100%;
    max-width: 400px;
    color: #333;
}

h1 {
    font-size: 1.8rem;
    margin-bottom: 24px;
    font-weight: 600;
    color: #222;
}

label {
    display: block;
    font-size: 14px;
    margin-bottom: 6px;
    text-align: left;
    color: #444;
}

select,
input {
    width: 100%;
    padding: 10px 12px;
    font-size: 14px;
    border-radius: 6px;
    border: 1px solid #ccc;
    margin-bottom: 16px;
    background-color: #fff;
    color: #333;
    transition: border-color 0.2s ease;
}

select:focus,
input:focus {
    border-color: #007BFF;
    outline: none;
}

button {
    width: 100%;
    background-color: #007BFF;
    color: #fff;
    border: none;
    padding: 12px;
    font-size: 15px;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #0056b3;
}

#resultado {
    margin-top: 20px;
    font-size: 16px;
    font-weight: 500;
    color: #444;
}