/* CABECERA BASE */
.header {
    background: #0D1B2A;
    border-bottom: 0.1rem solid #0A1622;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 2000;
    padding: 1rem 5vw;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

/* ESPACIADOR */
/*.header-spacer {
    height: clamp(4rem, 6vw, 6.5rem);
}

@media (max-width: 48rem) {
    .header-spacer {
        height: clamp(4rem, 10vw, 5.5rem);
    }
}
*/

/* LOGO */
.logo img {
    height: clamp(3rem, 6vw, 4.5rem);
    display: block;
    max-width: 100%;
}

/* BOTÓN HAMBURGUESA */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 0.4rem;
    background: none;
    border: none;
    cursor: pointer;
    color: #F5FAFC;
    z-index: 3000;
}

.menu-toggle span {
    width: clamp(1.6rem, 5vw, 2rem);
    height: clamp(0.2rem, 0.5vw, 0.3rem);
    background-color: currentColor;
    border-radius: 0.2rem;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* MENÚ ESCRITORIO */
.nav {
    flex: 1 1 auto;
}

.nav ul {
    list-style: none;
    display: flex;
    gap: clamp(1rem, 3vw, 2rem);
    margin: 0;
    padding: 0;
    justify-content: flex-end;
}

/* ENLACES */
.nav a {
    position: relative;
    text-decoration: none;
    color: #F5FAFC;
    font-weight: 600;
    padding-bottom: 0.2rem;
    font-size: clamp(1rem, 1.2vw, 1.2rem);
    transition: color 0.25s ease;
}

/* SUBRAYADO ANIMADO */
.nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.1rem;
    width: 100%;
    height: 0.15rem;
    background: #4DB7E3;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
}

/* HOVER */
.nav a:hover {
    color: #A7D3E8;
}

.nav a:hover::after {
    transform: scaleX(1);
}

/* ACTIVE */
.nav a.active {
    color: #A7D3E8;
}

.nav a.active::after {
    transform: scaleX(1);
    background: #4DB7E3;
}

/* RESPONSIVE */
@media (max-width: 48rem) {

    .header {
        padding: 1rem 2rem;
    }

    .menu-toggle {
        display: flex;
    }

    .menu-toggle span {
        height: clamp(0.25rem, 1vw, 0.35rem);
    }

    /* MENÚ MÓVIL */
    .nav {
        position: fixed;
        top: 0;
        right: 0;
        width: 70vw;
        max-width: 80vw;
        height: 100vh;
        background: #0D1B2A;
        border-left: 0.1rem solid #0A1622;
        display: flex;
        flex-direction: column;
        padding-top: clamp(4rem, 10vw, 6rem);
        padding-left: 2rem;
        gap: 2rem;
        z-index: 2500;
        transform: translateX(100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
    }

    .nav.active {
        transform: translateX(0);
    }

    .nav ul {
        flex-direction: column;
        gap: clamp(1.2rem, 4vw, 2rem);
        text-align: left;
    }

    /* Animación hamburguesa */
    .menu-toggle.active span:nth-child(1) {
        transform: translateY(0.6rem) rotate(45deg);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: translateY(-0.6rem) rotate(-45deg);
    }
}