#modo-toggle {
    position: fixed;
    top: 15px;
    right: 20px;
    background: var(--bordo);
    color: white;
    border: none;
    border-radius: 50%;
    padding: 10px 14px;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    z-index: 999;
    transition: background 0.3s;
}

#modo-toggle:hover {
    background: var(--bordoClaro);
}