* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: #695163;
    font-family: sans-serif;
}

main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-centro {
    text-align: center;
}

.logo-centro img {
    max-width: 300px;
    height: auto;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
}

.firma {
    padding: 2rem;
    text-align: center;
    background: rgba(0,0,0,0.1);
}

.firma span {
    display: inline-flex;
    gap: 1rem;
}

.firma a {
    color: #AD9A93;
    text-decoration: none;
    font-size: 1.5rem;
    transition: color 0.3s;
}

.firma a:hover {
    color: #9EF514;
}

@media (max-width: 768px) {
    .logo-centro img {
        max-width: 200px;
    }
}