.site-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 0 0 var(--header-bottom-space);
    position: relative;
}

.site-nav::after {
    content: '';
    position: absolute;
    left: calc(-1 * var(--page-shell-inline));
    right: calc(-1 * var(--page-shell-inline));
    bottom: 0;
    height: 1px;
    background: var(--line-strong);
}

.site-nav__logo {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.5em;
    white-space: nowrap;
    color: var(--text-color);
    text-decoration: none;
    flex-shrink: 0;
}

.site-nav__links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.site-nav__link {
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted-text);
    text-decoration: none;
    transition: color 0.2s ease, opacity 0.2s ease;
    white-space: nowrap;
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
    color: var(--text-color);
}

.site-nav__link[aria-current="page"] {
    color: var(--text-color);
    position: relative;
}

.site-nav__link[aria-current="page"]::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -3px;
    height: 1px;
    background: var(--dynamic-accent);
    opacity: 0.6;
}

.site-nav__divider {
    width: 1px;
    height: 14px;
    background: var(--line-strong);
    flex-shrink: 0;
}

.site-nav__cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--mono-font);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--bg-color);
    background: var(--text-color);
    padding: 7px 14px;
    border: none;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.14s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.site-nav__cta:hover,
.site-nav__cta:focus-visible {
    background: var(--dynamic-accent);
    transform: translateY(-1px);
}

.site-nav__cta:active {
    transform: scale(0.97);
}

.site-nav__cta-arrow {
    font-style: normal;
    display: inline-block;
    transition: transform 0.2s ease;
}

.site-nav__cta:hover .site-nav__cta-arrow,
.site-nav__cta:focus-visible .site-nav__cta-arrow {
    transform: translateX(3px) translateY(-2px);
}

.site-nav__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px;
    height: 28px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 2px;
    flex-shrink: 0;
}

.site-nav__hamburger span {
    display: block;
    height: 1px;
    background: var(--text-color);
    transition: transform 0.25s var(--motion-ease), opacity 0.2s ease, width 0.2s ease;
    transform-origin: left center;
}

.site-nav__hamburger span:nth-child(2) {
    width: 70%;
}

.site-nav.is-open .site-nav__hamburger span:nth-child(1) {
    transform: rotate(45deg) translate(0, 0);
}

.site-nav.is-open .site-nav__hamburger span:nth-child(2) {
    opacity: 0;
    width: 0;
}

.site-nav.is-open .site-nav__hamburger span:nth-child(3) {
    transform: rotate(-45deg);
}

.site-nav__drawer {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1001;
    background: var(--bg-color);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 40px var(--page-shell-inline);
    opacity: 0;
    transform: translateY(-12px);
    transition: opacity 0.28s var(--motion-ease), transform 0.28s var(--motion-ease);
    pointer-events: none;
}

.site-nav.is-open .site-nav__drawer {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.site-nav__drawer-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 32px;
    width: 100%;
}

.site-nav__drawer-link {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--muted-text);
    text-decoration: none;
    transition: color 0.18s ease;
}

.site-nav__drawer-link:hover,
.site-nav__drawer-link:focus-visible,
.site-nav__drawer-link[aria-current="page"] {
    color: var(--text-color);
}

.site-nav__drawer-zone {
    font-size: 0.55rem;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: var(--soft-text);
    margin-bottom: 12px;
    display: block;
}

.site-nav__drawer-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--mono-font);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--bg-color);
    background: var(--text-color);
    padding: 12px 22px;
    margin-top: 44px;
    transition: background 0.2s ease;
}

.site-nav__drawer-cta:hover,
.site-nav__drawer-cta:focus-visible {
    background: var(--dynamic-accent);
}

@media (max-width: 768px) {
    .site-nav__links {
        display: none;
    }

    .site-nav__hamburger {
        display: flex;
    }

    .site-nav__drawer {
        display: flex;
    }

    .site-nav.is-open {
        z-index: 1000;
    }

    body.home-page.nav-drawer-open #main-content {
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        overflow: visible !important;
    }

    body.home-page.nav-drawer-open .portrait-top,
    body.home-page.nav-drawer-open .node-layer,
    body.home-page.nav-drawer-open .portrait-divider {
        pointer-events: none;
    }
}