body {
    font-family: Arial, sans-serif;
    background: linear-gradient(to bottom, #a0d8ef, #ffffff);
    text-align: center;
    padding: 20px;
}

h1 {
    color: #004d66;
}

canvas {
    border: 2px solid #004d66;
    margin: 20px auto;
    display: block;
    background: #e6f7ff;
}

.quiz {
    max-width: 600px;
    margin: auto;
    text-align: left;
}

button {
    display: block;
    margin: 5px 0;
    padding: 10px;
    width: 100%;
    border: none;
    background-color: #007acc;
    color: white;
    cursor: pointer;
    border-radius: 5px;
}

button:hover {
    background-color: #005f99;
}

.correcto {
    background-color: green !important;
}

.incorrecto {
    background-color: red !important;
}

#resultado {
    font-size: 20px;
    font-weight: bold;
    margin-top: 20px;
}