.cabecera-principal {
    margin-top: 1.25rem;
    padding: 2rem 1rem;

    text-align: center;
}

.overlay-logo {
    display: flex;
    justify-content: center;
    align-items: center;

    width: 100%;

    opacity: 1;
    transform: translateY(0);
    visibility: visible;

    transition:
        opacity 0.35s ease,
        transform 0.35s ease,
        visibility 0.35s ease;
}

.logo-cabecera {
    display: block;

    width: clamp(8rem, 35vw, 20rem);
    max-width: 100%;
    height: auto;

    filter:
        drop-shadow(0 0 0.625rem var(--color-principal-lila))
        drop-shadow(0 0 1.25rem var(--color-principal-rojo));
}

.cabecera-principal.logo-oculto .overlay-logo {
    opacity: 0;
    transform: translateY(-1rem);
    visibility: hidden;
    pointer-events: none;
}




/* ========================================
   BARRA DE NAVEGACIÓN FIJA
======================================== */

.navegacion {
    position: fixed;
    top: 0;
    left: 0;

    width: 100%;

    z-index: 1000;

    background-color: var(--color-fondo);

    transform: translateY(-100%);
    visibility: hidden;
    pointer-events: none;

    transition:
        transform 0.3s ease,
        visibility 0.3s ease;
}


.navegacion.visible {
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
}


/* ========================================
   CONTENIDO DE LA BARRA
======================================== */

.barranavegacion {
    display: flex;
    justify-content: space-between;
    align-items: center;

    gap: 1rem;

    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 0.625rem 1.25rem;

    background-color: var(--color-fondo);
}


/* ========================================
   LOGO PEQUEÑO
======================================== */

.logo-nav {
    display: flex;
    align-items: center;

    flex-shrink: 0;
}
.logo-nav a{
    text-decoration: none;
}

.logo {
    display: block;

    width: auto;
    height: clamp(2.5rem, 5vw, 3rem);

    object-fit: contain;
}


/* ========================================
   MENÚ DE ESCRITORIO
======================================== */

.menu {
    display: flex;
    align-items: center;
    justify-content: flex-end;

    gap: 1.25rem;

    list-style: none;
    margin: 0;
    padding: 0;
}

.menu li {
    margin: 0;
    padding: 0;
}

.menu li a {
    display: block;

    color: var(--color-texto);
    text-decoration: none;

    font-size: 1rem;
    font-weight: 900;

    transition:
        color 0.3s ease,
        filter 0.3s ease;
}

.menu li a:hover {
    color: var(--color-principal-lila);

    filter:
        drop-shadow(0 0 0.3rem var(--color-principal-lila))
        drop-shadow(0 0 0.5rem var(--color-principal-rojo));
}


/* ========================================
   BOTÓN HAMBURGUESA
======================================== */

.menu-btn {
    display: none;

    flex-shrink: 0;

    padding: 0.25rem 0.5rem;

    border: none;
    border-radius: 0.375rem;

    background: transparent;

    color: var(--color-texto);
    font-family: Arial, sans-serif;
    font-size: 2rem;
    line-height: 1;

    cursor: pointer;
}

.menu-btn:hover,
.menu-btn:focus-visible {
    color: var(--color-principal-lila);
}

.menu-btn:focus-visible {
    outline: 0.125rem solid var(--color-principal-lila);
    outline-offset: 0.25rem;
}

/* ========================================
   MÓVILES Y TABLETS
======================================== */

@media (max-width: 48rem) {

    .cabecera-principal {
        margin-top: 0.75rem;
        padding: 1.5rem 0.5rem;
    }

    .logo-cabecera {
        width: clamp(7rem, 40vw, 16rem);
    }

    /* Barra y botón */

    .barranavegacion {
        position: relative;

        flex-wrap: wrap;
        gap: 0.5rem;

        padding: 0.625rem 1rem;
    }

    .logo {
        height: 2.75rem;
    }

    .menu-btn {
        display: block;
        margin-left: auto;
    }


    .menu {
        display: none;

        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;

        gap: 0;

        position: absolute;
        top: 100%;
        left: 0;
        right: 0;

        width: 100%;
        max-height: calc(100vh - 4rem);
        overflow-y: auto;

        padding: 0.5rem 1rem;

        background-color: var(--color-fondo);
        border-top: 0.0625rem solid var(--color-principal-lila);

        box-shadow: 0 0.5rem 1rem rgb(0, 0, 0, 0.3);
    }

    .menu.show {
        display: flex;
    }

    .menu li a {
        padding: 0.75rem 0.5rem;
    }

    main section {
        scroll-margin-top: 4rem;
    }
}