nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--surface-nav);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-nav);
    padding: 0 2rem;
    height: 60px;
    justify-content: space-between;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background 0.3s ease, border-color 0.3s ease;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    margin-left: auto;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--blue-400);
}

.nav-cta {
    background: var(--blue-600) !important;
    color: white !important;
    padding: 7px 18px !important;
    border-radius: var(--radius-md) !important;
    font-size: 0.85rem !important;
    transition: background 0.2s ease !important;
}

.nav-cta:hover {
    background: var(--blue-800) !important;
}

/* Agrupamos el toggle + hamburger a la derecha */
.nav-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: 1rem;
}

/* hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}


@media (max-width: 768px) {
    nav {
        justify-content: space-between;
    }

    .nav-right {
        margin-left: auto;
        display: flex;
        align-items: center;
        gap: .75rem;
    }

    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--surface-alt);
        flex-direction: column;
        padding: 1.5rem 2rem;
        gap: 1.25rem;
        border-bottom: 1px solid var(--border-subtle);
        box-shadow: 0 8px 24px rgba(0, 0, 0, .12);
        z-index: 99;
        display: flex;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-20px);
        transition:
            opacity .3s ease,
            transform .3s ease,
            visibility .3s;
    }

    .nav-links.open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .nav-links a {
        font-size: 1rem;
    }
}