body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(to right, #4facfe, #00f2fe);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    text-align: center;
    width: 350px;
}

h1 {
    color: #333;
    margin-bottom: 20px;
}

label {
    font-weight: bold;
    display: block;
    margin-top: 15px;
    color: #555;
}

select, input {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1rem;
}

button {
    background: #4facfe;
    color: white;
    border: none;
    padding: 12px;
    font-size: 1rem;
    width: 100%;
    margin-top: 20px;
    border-radius: 6px;
    cursor: pointer;
    transition: 0.3s;
}

button:hover {
    background: #00c9fe;
}

#resultado {
    margin-top: 20px;
    padding: 15px;
    background: #f4f4f4;
    border-radius: 6px;
    font-size: 1.1rem;
    color: #333;
}