.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 9999;
    isolation: isolate;
    padding: clamp(1.15rem, 0.85rem + 0.7vw, 1.75rem) 0;
    color: var(--itza-white);
    transition: background-color 1s var(--ease-smooth),
        backdrop-filter 1s var(--ease-smooth),
        border-color 1s var(--ease-smooth),
        box-shadow 1s var(--ease-smooth),
        color 0.8s var(--ease-smooth),
        padding 0.85s var(--ease-smooth),
        transform 0.85s var(--ease-smooth);
    border-bottom: 1px solid transparent;
}

.site-nav,
.site-nav__panel,
.site-nav__menu,
.site-nav__menu a,
.site-nav__social,
.site-nav__social a,
.site-nav__toggle {
    position: relative;
    z-index: 1;
}

.site-header.is-scrolled {
    background-color: rgba(248, 244, 238, 0.76);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom-color: rgba(39, 37, 34, 0.14);
    box-shadow: 0 14px 34px rgba(22, 20, 18, 0.09);
    color: var(--itza-primary);
    padding-top: clamp(0.82rem, 0.72rem + 0.2vw, 1rem);
    padding-bottom: clamp(0.82rem, 0.72rem + 0.2vw, 1rem);
}

.site-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: clamp(1.4rem, 1rem + 2vw, 4.5rem);
    padding-inline: clamp(0.5rem, 0.2rem + 1.5vw, 2.2rem);
}

.site-brand {
    display: grid;
    gap: 0.1rem;
    font-family: var(--font-display);
    font-size: clamp(1.18rem, 1.02rem + 0.7vw, 1.72rem);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.site-brand__logo {
    display: block;
    width: auto;
    height: clamp(3rem, 2.35rem + 1.95vw, 7.2rem);
    max-height: 7.2rem;
    /* width: 5.2rem !important; */
    max-width: min(52vw, 300px);
    object-fit: contain;
}

.site-brand__logo--dark {
    display: none;
}

.site-header.is-scrolled .site-brand__logo--light {
    display: none;
}

.site-header.is-scrolled .site-brand__logo--dark {
    display: block;
}

.site-header.is-scrolled .site-brand__logo {
    height: clamp(2.3rem, 2rem + 0.9vw, 3.35rem);
    max-height: 3.35rem;
}

.site-brand__caption {
    font-family: var(--font-body);
    font-size: clamp(0.44rem, 0.4rem + 0.1vw, 0.58rem);
    letter-spacing: 0.16em;
    opacity: 0.92;
}

.site-brand__mark {
    display: inline-block;
    line-height: 0.95;
    transform: translateY(0);
    transition: transform var(--dur-slow) var(--ease-smooth), opacity var(--dur-slow) var(--ease-smooth);
}

.site-header.is-scrolled .site-brand__mark {
    transform: translateY(-1px);
}

.site-nav__panel {
    margin-left: auto;
}

.site-nav__social {
    display: flex;
    align-items: center;
    gap: 0.95rem;
    margin-left: clamp(0.2rem, 0.3vw, 0.8rem);
}

.site-nav__social a {
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--itza-icon-gray);
    border: 1px solid rgba(255, 255, 255, 0.35);
    transition: transform var(--dur-mid) var(--ease-smooth),
        background-color var(--dur-mid) var(--ease-smooth),
        border-color var(--dur-mid) var(--ease-smooth);
}

.site-nav__social a:hover,
.site-nav__social a:focus-visible {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.12);
}

.site-nav__social svg {
    width: 1.25rem;
    height: 1.25rem;
}

.site-header.is-scrolled .site-nav__social a {
    color: var(--itza-primary);
    border-color: rgba(180, 185, 188, 0.55);
}

.site-header.is-scrolled .site-nav__social a:hover,
.site-header.is-scrolled .site-nav__social a:focus-visible {
    background: rgba(47, 75, 143, 0.1);
}

.site-nav__menu {
    display: flex;
    align-items: center;
    gap: clamp(1.2rem, 0.6rem + 1.5vw, 2.6rem);
}

.site-nav__menu a {
    font-size: clamp(0.78rem, 0.74rem + 0.2vw, 0.92rem);
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    position: relative;
    opacity: 0.9;
    transition: opacity var(--dur-mid) var(--ease-smooth), transform var(--dur-mid) var(--ease-smooth);
}

.site-nav__menu a:hover,
.site-nav__menu a:focus-visible {
    opacity: 1;
    transform: translateY(-1px);
}

.site-nav__menu a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.5rem;
    width: 100%;
    height: 1px;
    background: currentColor;
    transform-origin: right;
    transform: scaleX(0);
    opacity: 0.75;
    transition: transform var(--dur-mid) var(--ease-smooth);
}

.site-nav__menu .current-menu-item > a:not([href*="#"])::after {
    transform-origin: left;
    transform: scaleX(1);
}

/* In homepage one-page flows, keep Inicio neutral until hover/focus. */
body.home .site-nav__menu .menu-item-home.current-menu-item > a:not(:hover):not(:focus-visible)::after,
body.home .site-nav__menu .menu-item-home.current_page_item > a:not(:hover):not(:focus-visible)::after {
    transform-origin: right;
    transform: scaleX(0);
}

.site-nav__menu a:hover::after,
.site-nav__menu a:focus-visible::after {
    transform-origin: left;
    transform: scaleX(1);
}

.site-nav__toggle {
    display: none;
    appearance: none;
    border: 0;
    background: transparent;
    color: inherit;
    font-family: var(--font-display);
    font-size: var(--text-xs);
    letter-spacing: 0.17em;
    text-transform: uppercase;
    padding: 0;
}

@media (max-width: 991.98px) {
    .site-header {
        padding-top: 1rem;
        padding-bottom: 1rem;
    }

    .site-header.is-scrolled {
        padding-top: 0.75rem;
        padding-bottom: 0.75rem;
    }

    .site-nav__toggle {
        display: inline-flex;
        margin-left: auto;
    }

    .site-nav__social {
        display: none;
    }

    .site-nav__panel {
        position: absolute;
        top: calc(100% + 0.95rem);
        right: 0.9rem;
        left: 0.9rem;
        color: var(--itza-charcoal);
        background: rgba(248, 244, 238, 0.9);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border: 1px solid rgba(39, 37, 34, 0.13);
        border-radius: var(--radius-sm);
        box-shadow: 0 18px 36px rgba(31, 29, 26, 0.14);
        padding: var(--space-3);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-0.6rem);
        transition: opacity var(--dur-mid) var(--ease-smooth),
            transform var(--dur-mid) var(--ease-smooth),
            visibility var(--dur-mid) var(--ease-smooth);
    }

    .site-nav__panel.is-open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .site-nav__menu {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
    }

    .site-brand {
        font-size: clamp(0.92rem, 0.86rem + 0.3vw, 1.15rem);
        letter-spacing: 0.14em;
    }

    .site-brand__logo {
        height: clamp(2.35rem, 2rem + 1.95vw, 3.1rem);
        max-height: 3.1rem;
        max-width: min(72vw, 250px);
    }

    .site-header.is-scrolled .site-brand__logo {
        height: clamp(2rem, 1.75rem + 1.1vw, 2.55rem);
        max-height: 2.55rem;
    }

    .site-brand__caption {
        font-size: 0.43rem;
    }
}