/* =============================== */
/*  HEADER / NAV                   */
/* =============================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.25rem 0;
    transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}

.site-header.is-scrolled {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0,0,0,0.06);
    padding: 0.875rem 0;
}

.site-header__inner {
    width: min(100% - 3rem, var(--max-width));
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.site-header__logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 0.04em;
    transition: color var(--transition);
    line-height: 1;
}

.site-header.is-scrolled .site-header__logo {
    color: var(--color-black);
}

/* NAV */
.site-navigation__list {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.site-navigation__link {
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.9);
    transition: color var(--transition);
    position: relative;
}

.site-header.is-scrolled .site-navigation__link {
    color: var(--color-text-muted);
}

.site-navigation__link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -3px;
    width: 100%;
    height: 1.5px;
    background: var(--color-pink);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.site-navigation__link:hover::after,
.site-navigation__link[aria-current="page"]::after {
    transform: scaleX(1);
}

.site-navigation__link:hover {
    color: var(--color-white);
}

.site-header.is-scrolled .site-navigation__link:hover {
    color: var(--color-black);
}

/* CTA en nav */
.site-navigation__link--cta {
    background: var(--color-pink);
    color: var(--color-black) !important;
    padding: 0.5rem 1.25rem;
    border-radius: 100px;
    font-weight: 600;
}

.site-navigation__link--cta::after { display: none; }

.site-navigation__link--cta:hover {
    background: #d488a0;
    transform: translateY(-1px);
}

/* HAMBURGER */
.site-header__hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.site-header__hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-white);
    transition: var(--transition);
    border-radius: 2px;
}

.site-header.is-scrolled .site-header__hamburger span {
    background: var(--color-black);
}

/* MOBILE NAV */
@media (max-width: 768px) {
    .site-header__hamburger { display: flex; }

    .site-navigation {
        position: fixed;
        top: 0;
        right: -100%;
        width: min(320px, 85vw);
        height: 100vh;
        background: var(--color-white);
        padding: 5rem 2rem 2rem;
        transition: right 0.35s cubic-bezier(0.4,0,0.2,1);
        box-shadow: -4px 0 24px rgba(0,0,0,0.12);
        z-index: 99;
    }

    .site-navigation.is-open {
        right: 0;
    }

    .site-navigation__list {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

    .site-navigation__link {
        font-size: 1rem;
        color: var(--color-text) !important;
    }

    .nav-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.4);
        z-index: 98;
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--transition);
    }

    .nav-overlay.is-visible {
        opacity: 1;
        pointer-events: all;
    }
}