.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
}

.nav {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1.5rem var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.brand {
    text-decoration: none;
    text-align: center;
    padding: 0 3rem;
}

.brand-name {
    font-family: var(--font);
    font-size: clamp(0.85rem, 1.8vw, 1rem);
    font-weight: 700;
    letter-spacing: var(--tracking-wide);
    color: var(--text);
    display: block;
    line-height: 1;
    white-space: nowrap;
}

.menu-toggle {
    position: absolute;
    right: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    min-width: 44px;
    min-height: 44px;
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--text);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    z-index: 1102;
    transition: opacity 0.18s ease;
}

.menu-toggle:hover,
.menu-toggle:focus-visible {
    opacity: 0.55;
}

.menu-toggle:focus-visible {
    outline: 1px solid var(--text);
    outline-offset: 4px;
}

.menu-toggle-icon {
    position: relative;
    width: 20px;
    height: 12px;
    display: block;
}

.menu-toggle-bar {
    position: absolute;
    left: 0;
    width: 100%;
    height: 1px;
    background: currentColor;
    transition: transform 0.18s ease, top 0.18s ease;
}

.menu-toggle-bar:first-child {
    top: 2px;
}

.menu-toggle-bar:last-child {
    top: 9px;
}

body.menu-open .menu-toggle-bar:first-child {
    top: 5px;
    transform: rotate(45deg);
}

body.menu-open .menu-toggle-bar:last-child {
    top: 5px;
    transform: rotate(-45deg);
}

.site-menu-overlay {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    background: var(--bg);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.site-menu-overlay.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.site-menu-overlay[hidden] {
    display: none;
}

.site-menu-overlay.is-open[hidden] {
    display: flex;
}

.site-menu-nav {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    text-align: center;
}

.site-menu-link,
.site-menu-contact-trigger {
    position: relative;
    font-family: var(--font);
    font-size: clamp(1.5rem, 5vw, 2.25rem);
    font-weight: 700;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    text-decoration: none;
    color: var(--text);
    line-height: 1;
    padding: 0.5rem 1rem;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.18s ease, color 0.16s ease;
}

.site-menu-link::after,
.site-menu-contact-trigger::after {
    content: '';
    position: absolute;
    inset: 0.1rem 0;
    border: 2px solid transparent;
    border-radius: var(--radius);
    pointer-events: none;
    opacity: 0;
    transform: scale(0.94);
    transition:
        border-color 0.16s ease,
        opacity 0.16s ease,
        transform 0.16s ease;
}

.site-menu-link.is-selected::after,
.site-menu-contact-trigger.is-selected::after,
.site-menu-link.is-current::after {
    border-color: #b83228;
    opacity: 1;
    transform: scale(1);
}

#siteMenuMain.has-selection .site-menu-link.is-current:not(.is-selected)::after {
    border-color: transparent;
    opacity: 0;
    transform: scale(0.94);
}

.site-menu-link.is-selected,
.site-menu-contact-trigger.is-selected,
#siteMenuMain:not(.has-selection) .site-menu-link.is-current {
    color: #b83228;
}

.site-menu-contact-trigger,
.site-menu-back {
    margin: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
    text-align: center;
}

.site-menu-back {
    font-family: var(--font);
    font-size: clamp(0.85rem, 2.5vw, 1rem);
    font-weight: 600;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--muted);
    line-height: 1;
    padding: 0.5rem 1rem;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: color 0.16s ease;
}

.site-menu-back:focus-visible {
    outline: 1px solid var(--text);
    outline-offset: 6px;
}

.site-menu-contact[hidden],
#siteMenuMain[hidden] {
    display: none;
}

.site-menu-link:focus-visible,
.site-menu-contact-trigger:focus-visible {
    outline: 1px solid var(--text);
    outline-offset: 6px;
}

body.menu-open {
    overflow: hidden;
}

body.menu-open .site-header {
    z-index: 1102;
    background: transparent;
    border-bottom-color: transparent;
}

body.menu-open .brand {
    visibility: hidden;
    pointer-events: none;
}

@media (max-width: 768px) {
    .nav {
        padding: 1.25rem var(--space-sm);
    }

    .brand {
        padding: 0 2.75rem;
    }

    .menu-toggle {
        right: var(--space-sm);
    }

    .site-menu-nav {
        gap: 1rem;
    }

    .site-menu-link,
    .site-menu-contact-trigger {
        padding: 0.45rem 0.75rem;
    }
}