.site-header {
    position: relative;
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 0.75rem var(--gutter);
    border-bottom: var(--hairline) solid var(--line);
}

.home-template .site-header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 2;
    border-bottom-color: transparent;
}

.theme-toggle {
    position: absolute;
    top: 0.75rem;
    right: var(--gutter);
    padding: 0.375rem;
    border: 0;
    background: none;
    color: var(--text);
    font-size: 1.25rem;
    cursor: pointer;
}

.site-menu,
.site-menu-inner { display: contents; }

.menu-toggle { display: none; }

.site-nav {
    flex: 1;
    order: 1;
}

.site-nav .nav { justify-content: flex-end; }
.site-nav-secondary { order: 3; }
.site-nav-secondary .nav { justify-content: flex-start; }

.site-home {
    display: block;
    flex: 0 0 auto;
    order: 2;
    width: 7rem;
}

.nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem 1.75rem;
    margin: 0;
    padding: 0;
    list-style: none;
    font-family: var(--font-smallcaps);
    font-size: var(--body);
    letter-spacing: 0.04em;
}

.nav a { text-decoration: none; }
.nav a:hover { text-decoration: underline; }

@media (max-width: 64em) {
    .site-header { gap: 1rem; padding-left: 1rem; padding-right: 1rem; }
    .site-home { width: 5.5rem; }
    .nav { gap: 0.25rem 0.8rem; font-size: 0.8125rem; }
}

@media (max-width: 48em) {
    .site-header {
        flex-direction: column;
        gap: 0;
        transition: background-color 0.4s ease;
    }

    .home-template .site-header:has(.site-menu.is-open) { background-color: rgba(var(--fade), 0.94); }

    .site-home { order: 0; width: 5rem; }

    .menu-toggle {
        display: block;
        padding: 0.5rem 1rem;
        border: 0;
        background: none;
        color: var(--text);
        font-family: var(--font-smallcaps);
        font-size: var(--body);
        letter-spacing: 0.04em;
        cursor: pointer;
    }

    .menu-toggle[aria-expanded="true"] .menu-toggle-open,
    .menu-toggle[aria-expanded="false"] .menu-toggle-close { display: none; }

    .site-menu {
        display: grid;
        grid-template-rows: 0fr;
        width: 100%;
        transition: grid-template-rows 0.4s ease;
    }

    .site-menu.is-open { grid-template-rows: 1fr; }

    .site-menu-inner {
        display: block;
        min-height: 0;
        overflow: hidden;
        visibility: hidden;
        transition: visibility 0s 0.4s;
    }

    .site-menu.is-open .site-menu-inner {
        visibility: visible;
        transition-delay: 0s;
    }

    .site-menu .nav {
        flex-direction: column;
        align-items: center;
        gap: 0;
        font-size: var(--heading);
    }

    .site-menu-inner .site-nav-secondary { padding-bottom: 1rem; }
    .nav { row-gap: 0; }
    .nav a { display: inline-block; padding: 0.5rem 0; }
}