html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
}

body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
    display: flex;
    flex-direction: column;
}

h1 {
    font-size: 24px;
    margin-top: 20px;
    color: #333;
}

.tablero {
    display: grid;
    grid-template-columns: repeat(3, 150px);
    gap: 15px;
    justify-content: center;
    align-items: center;
    margin: 20px auto;
    width: 320px;
}

.casilla {
    width: 150px;
    height: 150px;
    background-color: #e0e0e0;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.casilla:hover {
    transform: scale(1.05);
    background-color: #d6d6d6;
}

.casilla img {
    max-width: 100%;
    max-height: 100%;
    border-radius: 8px;
}

footer {
    text-align: center;
    padding: 1em 0;
    font-size: 0.85em;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
}

footer address {
    font-style: normal;
}

footer img {
    width: 40px;
}