/* NAV */
nav {
    background: var(--color-fondo);
    padding: 10px 20px;
    position: relative;
}

/*piso el estilo a:hover de boostrap.css*/
#menu li a:hover {
    color: var(--color-hover) !important;
    text-decoration: none;
}

/* Toggle móvil */
.menu-toggle {
    display: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--color-letra);
}

/* Lista principal */
nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    margin: 0;
    padding: 0;
    gap: 15px;
}

nav ul li {
    position: relative;
}

/* Enlaces menú principal */
nav ul li a {
    display: block;
    padding: 12px 16px;
    color: var(--color-letra);
    text-decoration: none;
    font-weight: 500;
    border-radius: 8px;
    transition: all var(--transition-speed);
    position: relative;
}

/* Barra inferior tipo neon menú principal */
nav ul li a::before {
    content: '';
    position: absolute;
    width: 0%;
    height: 3px;
    bottom: 0;
    left: 0;
    background-color: var(--color-borde-hover);
    transition: width var(--transition-speed);
    border-radius: 2px;
    z-index: 0;
}

nav ul li a:hover::before {
    width: 100%;
}

/* Submenú */
nav ul li ul {
    position: absolute;
    top: 110%;
    left: 0;
    background: var(--sub-fondo);
    min-width: 300px;
    display: flex;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.25s ease;
    border-radius: 8px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    z-index: 1000;
}

/* Mostrar submenú al hover */
nav ul li:hover>ul {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Submenú enlaces */
nav ul li ul li a {
    display: block;
    width: 100%;
    padding: 10px 20px;
    /* aumentar padding a izquierda/derecha */
    font-size: 14px;
    color: var(--sub-letra);
    text-align: left;
    /* alineado a la izquierda */
    position: relative;
    transition: all var(--transition-speed);
    z-index: 1;
}

/* Barra tipo underline submenú */
nav ul li ul li a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-borde-hover);
    transition: width var(--transition-speed);
    z-index: 0;
}

nav ul li ul li a:hover::before {
    width: 100%;
}

nav ul li ul li a:hover {
    color: var(--sub-letra-hover) !important;
}

/* Flechas submenú */
nav ul li.has-sub>a::after {
    content: "▼";
    font-size: 10px;
    margin-left: 6px;
    transition: transform var(--transition-speed);
}

nav ul li:hover>a::after {
    transform: rotate(180deg);
}

/* Responsivo */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    nav ul {
        flex-direction: column;
        display: none;
        width: 100%;
    }

    nav ul.show {
        display: flex;
    }

    nav ul li ul {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        box-shadow: none;
        border-radius: 0;
        background: var(--sub-fondo);
    }

    nav ul li ul li a {
        padding-left: 30px;
    }
}