.site-header {
    position: relative;
    z-index: 1000;

    border-bottom: 1px solid var(--border);
    background: white;
}

.site-header__inner {
    position: relative;

    max-width: var(--max-width);
    margin: auto;
    padding: 1.25rem 2rem;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: .75rem;

    flex-shrink: 0;

    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
}

.site-brand img {
    display: block;
    width: auto;
    height: 52px;
}

.site-brand span {
    line-height: 1;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.site-nav__link {
    color: var(--text-light);
    text-decoration: none;

    transition: color .2s ease;
}

.site-nav__link:hover {
    color: var(--primary);
}

.site-nav__link.is-active {
    color: var(--primary);
    font-weight: 600;
}

.language-switcher {
    display: flex;
    align-items: center;
    gap: .45rem;

    flex-shrink: 0;

    font-size: .95rem;
    font-weight: 600;
}

.language-switcher img {
    width: 18px;
    height: 18px;
    opacity: .85;
}

.language-switcher a {
    color: var(--text-light);
    text-decoration: none;

    transition: color .2s ease;
}

.language-switcher a:hover,
.language-switcher a.active {
    color: var(--primary);
}

.language-switcher .separator {
    color: var(--text-light);
    opacity: .5;

    user-select: none;
}

/*
 * Botón hamburguesa.
 * Oculto en escritorio.
 */
.site-menu-toggle {
    display: none;

    width: 44px;
    height: 44px;
    padding: 10px;

    flex-shrink: 0;

    border: 0;
    border-radius: .4rem;
    background: transparent;

    cursor: pointer;
}

.site-menu-toggle:hover {
    background: var(--background, #f5f5f5);
}

.site-menu-toggle:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.site-menu-toggle__icon {
    position: relative;

    display: block;
    width: 24px;
    height: 2px;

    margin: auto;

    border-radius: 999px;
    background: var(--text);

    transition:
        background-color .2s ease,
        transform .2s ease;
}

.site-menu-toggle__icon::before,
.site-menu-toggle__icon::after {
    position: absolute;
    left: 0;

    width: 24px;
    height: 2px;

    border-radius: 999px;
    background: var(--text);

    content: "";

    transition:
        top .2s ease,
        transform .2s ease;
}

.site-menu-toggle__icon::before {
    top: -7px;
}

.site-menu-toggle__icon::after {
    top: 7px;
}

/*
 * Convierte las tres líneas en una X
 * cuando el menú está abierto.
 */
.site-menu-toggle[aria-expanded="true"] .site-menu-toggle__icon {
    background: transparent;
}

.site-menu-toggle[aria-expanded="true"] .site-menu-toggle__icon::before {
    top: 0;
    transform: rotate(45deg);
}

.site-menu-toggle[aria-expanded="true"] .site-menu-toggle__icon::after {
    top: 0;
    transform: rotate(-45deg);
}

@media (max-width: 800px) {
    .site-header__inner {
        padding: .9rem 1.25rem;
        gap: 1rem;

        flex-wrap: wrap;
    }

    .site-brand {
        font-size: 1.35rem;
    }

    .site-brand img {
        height: 42px;
    }

    .site-menu-toggle {
        display: block;

        margin-left: auto;
    }

    /*
     * Navegación desplegable.
     */
    .site-nav {
        position: absolute;
        top: 100%;
        right: 0;
        left: 0;

        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 0;

        padding: .5rem 1.25rem 1.25rem;

        border-bottom: 1px solid var(--border);
        background: white;

        box-shadow: 0 12px 24px rgb(0 0 0 / 8%);
    }

    .site-nav.is-open {
        display: flex;
    }

    .site-nav__link {
        display: block;
        padding: .9rem 0;

        border-bottom: 1px solid var(--border);
    }

    /*
     * El selector de idioma se integra dentro
     * del mismo menú desplegable.
     */
    .language-switcher {
        display: none;
    }

    .site-nav .language-switcher {
        display: flex;

        margin-top: .75rem;
        padding-top: .5rem;

        border-top: 0;

        font-size: .95rem;
    }
}

@media (max-width: 420px) {
    .site-header__inner {
        padding-right: 1rem;
        padding-left: 1rem;
    }

    .site-brand {
        gap: .55rem;
        font-size: 1.2rem;
    }

    .site-brand img {
        height: 38px;
    }

    .site-nav {
        padding-right: 1rem;
        padding-left: 1rem;
    }
}