/* =====================================================================
   Header
   ===================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    transition: background-color 0.35s ease, border-color 0.35s ease, color 0.35s ease;
    border-bottom: 1px solid transparent;
}
.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

/* Solid (inner pages) + transparent-home-after-scroll */
.site-header--solid,
.site-header.is-scrolled {
    background: #fff;
    border-bottom-color: var(--c-line);
    color: var(--c-text);
}
.site-header--transparent:not(.is-scrolled) { color: #fff; }
.site-header--transparent:not(.is-scrolled) .brand__tagline { color: rgba(255, 255, 255, 0.6); }

/* Brand */
.brand { display: inline-flex; flex-direction: column; gap: 2px; line-height: 1; }
.brand__name {
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}
.brand__tagline {
    font-size: 8px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--c-text-2);
}

/* Collapsible area (nav + lang) — grouped on the right, like the React header */
.site-header__collapse {
    display: flex;
    align-items: center;
    gap: 32px;
}

/* Nav */
.site-nav { margin: 0; }
.site-nav__list {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}
.site-nav__list a {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    transition: opacity 0.25s ease;
}
.site-nav__list a:hover { opacity: 0.6; }
.site-nav__list .current-menu-item > a,
.site-nav__list .current_page_item > a,
.site-nav__list .current-menu-parent > a {
    border-bottom: 1px solid currentColor;
    padding-bottom: 2px;
}

/* Language switcher (ro / ru / en) */
.lang-switcher { display: flex; align-items: center; }
.lang-switcher__item {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: currentColor;
    opacity: 0.4;
    transition: opacity 0.2s ease;
}
.lang-switcher__item:hover,
.lang-switcher__item.is-active { opacity: 1; }
.lang-switcher__item + .lang-switcher__item { position: relative; padding-left: 16px; }
.lang-switcher__item + .lang-switcher__item::before {
    content: '/';
    position: absolute;
    left: 5px;
    opacity: 0.5;
}

/* Hamburger */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: transparent;
    border: 0;
    padding: 0;
    z-index: 60;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: currentColor;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* ── Mobile ────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .nav-toggle { display: inline-flex; }

    .site-header__collapse {
        position: fixed;
        inset: 0;
        background: #fff;
        color: var(--c-text);
        flex-direction: column;
        justify-content: center;
        gap: 32px;
        margin: 0;
        transform: translateX(100%);
        transition: transform 0.35s ease;
    }
    body.nav-open .site-header__collapse { transform: translateX(0); }
    body.nav-open { overflow: hidden; }

    .site-nav { margin: 0; }
    .site-nav__list { flex-direction: column; gap: 24px; }
    .site-nav__list a { font-size: 22px; letter-spacing: 0.1em; }

    .lang-switcher__item { font-size: 16px; opacity: 0.6; }

    /* Animate hamburger -> close */
    body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
    body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
    body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
    body.nav-open .nav-toggle { color: var(--c-text); }
}

@media (min-width: 768px) {
    .site-header__inner { height: var(--header-h); }
}