.site-nav {
    position: sticky;
    top: 0;
    z-index: var(--z-nav);
    background: rgba(9, 9, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--c-border);
}

.site-nav__bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.site-nav__logo img {
    height: 34px;
    width: auto;
    filter: brightness(0) invert(1);
}

.site-nav__links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.site-nav__links a {
    padding: 8px 16px;
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--c-ink-muted);
    border-radius: var(--r-sm);
    transition: all var(--dur) var(--ease);
}

.site-nav__links a:hover,
.site-nav__links a.active {
    color: var(--c-ink);
    background: var(--c-brand-light);
}

.site-nav__body {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: 1;
    gap: 24px;
}

.site-nav__right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lang-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    font-family: var(--ff-body);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    color: var(--c-ink-muted);
    background: var(--c-surface);
    border: 1px solid var(--c-border-strong);
    border-radius: var(--r-full);
    cursor: pointer;
    transition: all var(--dur) var(--ease);
    position: relative;
}

.lang-btn:hover { border-color: var(--c-brand); color: var(--c-brand); }
.lang-btn svg { width: 14px; height: 14px; }

.lang-drop {
    position: absolute;
    top: calc(100% + 6px);
    inset-inline-end: 0;
    min-width: 110px;
    background: var(--c-surface-raised);
    border: 1px solid var(--c-border-strong);
    border-radius: var(--r-md);
    box-shadow: var(--shadow-elevated);
    padding: 6px;
    list-style: none;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: all 0.2s var(--ease);
}

.lang-drop.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-drop a {
    display: block;
    padding: 8px 12px;
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--c-ink-muted);
    border-radius: var(--r-sm);
    text-decoration: none;
}

.lang-drop a:hover { background: var(--c-brand-light); color: var(--c-brand); }

.nav-burger {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.nav-burger svg { width: 24px; height: 24px; stroke: var(--c-ink); }

@media (max-width: 1024px) {
    .nav-burger { display: flex; order: 3; }
    .site-nav__logo { order: 1; }

    .site-nav__body {
        display: none;
        flex: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--c-bg-alt);
        border-bottom: 1px solid var(--c-border);
        padding: 20px 24px;
        box-shadow: var(--shadow-card);
        order: 4;
    }

    .site-nav__body.open { display: flex; flex-direction: column; }

    .site-nav__links {
        flex-direction: column;
        gap: 4px;
        margin-bottom: 20px;
    }

    .site-nav__links a {
        display: block;
        padding: 12px 16px;
        width: 100%;
        color: var(--c-ink-soft);
    }

    .site-nav__links a:hover,
    .site-nav__links a.active {
        color: var(--c-ink);
    }

    .site-nav__right {
        flex-direction: column;
        gap: 12px;
        width: 100%;
    }

    .site-nav__right .btn { width: 100%; text-align: center; }
}