@media (max-width: 767px) {
    .btn-wrap[responsive] {
        position: fixed;
        bottom: 20px;        /* distancia desde abajo */
        right: 20px;;         /* distancia desde la derecha */
        left: auto;
        width: auto;
        height: auto;
        z-index: 10;

        display: flex;
        align-items: center;
        justify-content: center;

        /* evita que el contenedor ocupe todo el ancho */
        pointer-events: none;
    }

    .btn-wrap[responsive] > * {
        pointer-events: auto;
        width: 48px;
        height: 48px;
        padding: 0;
        border-radius: 50%;
        border: none;

        background-color: var(--app-accent-color);
        color: white;
        font-size: 18px;
        text-transform: lowercase;

        display: flex;
        align-items: center;
        justify-content: center;

        box-shadow: 0 4px 6px rgba(0,0,0,0.3);
        transition: background-color 0.2s ease, transform 0.2s ease;
    }

    .btn-wrap[responsive] > *:focus {
        background-color: var(--app-accent-color);
        transform: scale(1.05);
    }

    .btn-wrap[responsive] > *:active {
        transform: scale(0.95);
        background-color: #00000040;
    }
}

/* @media (max-width: 767px) {
    .btn-wrap[responsive] {
        position: fixed; 
        right: 0; 
        bottom: 0; 
        left: 0; 
        height: 64px;
        z-index: 1;
    }
    .btn-wrap[responsive] > * {
        background-color: var(--app-accent-color);
        border: none;
        color: white;
        padding: 20px;
        width: 100%;
        height: 100%;
        font-size: 15px;
    }
    .btn-wrap[responsive] > *:focus {
        background-color: var(--app-accent-color);
    }
} */