/* =========================================
   Site Header — Floating Island
   ========================================= */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    pointer-events: none; /* кликабельны только дочерние элементы */
}

/* Трек — полная ширина, управляет позицией island */
.site-header__track {
    padding: 0;
    transition: padding 0.45s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

/* Island — сама шапка */
.site-header__island {
    display: flex;
    align-items: center;
    gap: 24px;
    height: var(--header-height);
    padding: 0 48px;
    background: transparent;
    border-radius: 0;
    border: 1px solid transparent;
    transition:
        height 0.45s cubic-bezier(0.4, 0, 0.2, 1),
        background 0.45s cubic-bezier(0.4, 0, 0.2, 1),
        border-radius 0.45s cubic-bezier(0.4, 0, 0.2, 1),
        border-color 0.45s cubic-bezier(0.4, 0, 0.2, 1),
        box-shadow 0.45s cubic-bezier(0.4, 0, 0.2, 1),
        padding 0.45s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: all;
}

/* При скролле — floating island */
.site-header.is-scrolled .site-header__track {
    padding: 12px 24px;
}

.site-header.is-scrolled .site-header__island {
    height: 60px;
    padding: 0 28px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-radius: 18px;
    border-color: rgba(0, 0, 0, 0.07);
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.04),
        0 12px 28px rgba(0, 0, 0, 0.08);
}

/* --- Logo --- */
.site-header__logo {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    text-decoration: none;
}

.site-header__logo img {
    height: 38px;
    width: auto;
    display: block;
    transition: height 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.site-header.is-scrolled .site-header__logo img {
    height: 32px;
}

.site-header__logo-text {
    font-size: 17px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

/* --- Nav --- */
.site-header__nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-menu {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 2px;
    margin: 0;
    padding: 0;
}

.nav-menu > li { position: relative; }

.nav-menu > li > a {
    display: block;
    padding: 7px 13px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    border-radius: 8px;
    transition: color 0.15s ease, background 0.15s ease;
    white-space: nowrap;
}

@media (hover: hover) { .nav-menu > li > a:hover { color: var(--color-primary); background: rgba(84,187,144,.07); } }

.nav-menu > li.current-menu-item > a,
.nav-menu > li.current-page-ancestor > a { color: var(--color-primary); }

.nav-menu > li.current-menu-item > a {
    position: relative;
}
.nav-menu > li.current-menu-item > a::after {
    content: '';
    position: absolute;
    bottom: 3px;
    left: 13px;
    right: 13px;
    height: 2px;
    background: var(--color-primary);
    border-radius: 1px;
}

/* Dropdown */
.nav-menu .sub-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 200px;
    list-style: none;
    margin: 0;
    padding: 6px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 14px;
    box-shadow: 0 8px 32px rgba(0,0,0,.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: opacity .2s, transform .2s, visibility .2s;
    z-index: 10;
}

@media (hover: hover) { .nav-menu > li:hover > .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); } }

.nav-menu .sub-menu li a {
    display: block;
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text);
    border-radius: 8px;
    transition: background .15s, color .15s;
    text-decoration: none;
}

@media (hover: hover) { .nav-menu .sub-menu li a:hover { background: var(--color-bg-light); color: var(--color-primary); } }

/* Dropdown arrow */
.nav-menu > li.menu-item-has-children > a {
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-menu > li.menu-item-has-children > a::after {
    content: '';
    width: 6px;
    height: 6px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg) translateY(-1px);
    transition: transform .2s;
    flex-shrink: 0;
}
@media (hover: hover) {
    .nav-menu > li.menu-item-has-children:hover > a::after {
        transform: rotate(225deg) translateY(2px);
    }
}

/* =========================================
   Companies Mega-Dropdown
   ========================================= */

/* Chevron иконка в пункте меню */
.nav-chevron {
    flex-shrink: 0;
    transition: transform 0.25s ease;
    vertical-align: middle;
}

.nav-menu > li.has-companies.is-hovering .nav-chevron {
    transform: rotate(180deg);
}

/* Dropdown контейнер */
.nav-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(-6px);
    width: 600px;
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: 18px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.12);
    padding: 10px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
    z-index: 100;
    pointer-events: none;
}

@media (hover: hover) {
    .nav-menu > li.has-companies.is-hovering > .nav-dropdown {
        opacity: 1;
        visibility: visible;
        transform: translateX(-50%) translateY(0);
        pointer-events: all;
    }
}

/* Список компаний */
.nav-dropdown__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
}

/* Карточка компании — логотип + название */
.nav-dropdown__link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: 8px;
    text-decoration: none;
    transition: background 0.15s ease;
}

.nav-dropdown__logo {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    object-fit: contain;
    border-radius: 6px;
}

@media (hover: hover) {
    .nav-dropdown__link:hover { background: var(--color-bg-light); }
    .nav-dropdown__link:hover .nav-dropdown__name { color: var(--color-primary); }
}

.nav-dropdown__name {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text);
    transition: color 0.15s ease;
}

/* В мобильном drawer — скрыт по умолчанию, открывается по клику */
.drawer-menu .nav-dropdown {
    position: static;
    width: 100%;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: none;
    border-radius: 0;
    padding: 0 0 0 16px;
    background: transparent;
    pointer-events: all;
    /* Скрыт по умолчанию */
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.32s ease;
}

.drawer-menu li.has-companies.is-open .nav-dropdown {
    max-height: 800px;
}

/* Шеврон поворачивается при открытии */
.drawer-menu li.has-companies .nav-chevron {
    transition: transform 0.25s ease;
}

.drawer-menu li.has-companies.is-open .nav-chevron {
    transform: rotate(180deg);
}

.drawer-menu .nav-dropdown__list {
    grid-template-columns: 1fr;
    gap: 0;
}

.drawer-menu .nav-dropdown__link {
    padding: 8px 0;
    border-radius: 0;
    border-bottom: 1px solid var(--color-border);
}

.drawer-menu .nav-dropdown__logo { width: 28px; height: 28px; border-radius: 4px; }
.drawer-menu .nav-dropdown__name { font-size: 14px; }

/* --- Actions --- */
.site-header__actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

/* =========================================
   Language Switcher
   ========================================= */

.lang-switcher {
    position: relative;
}

.lang-switcher__btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 9px 6px 8px;
    background: transparent;
    border: 1px solid rgba(0,0,0,0.12);
    border-radius: 20px;
    cursor: pointer;
    font-family: var(--font-primary);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text);
    transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
    white-space: nowrap;
    line-height: 1;
}

/* Scrolled state — нужен белый фон острова */
.site-header.is-scrolled .lang-switcher__btn {
    border-color: rgba(0,0,0,0.14);
}

@media (hover: hover) {
    .lang-switcher__btn:hover {
        border-color: var(--color-primary);
        color: var(--color-primary);
        background: rgba(84,187,144,0.06);
    }
    .lang-switcher__btn:hover .lang-switcher__globe { stroke: var(--color-primary); }
}

.lang-switcher__globe {
    flex-shrink: 0;
    color: var(--color-text-muted);
    transition: color 0.2s ease;
}

.lang-switcher__btn img {
    border-radius: 3px;
    display: block;
}

.lang-switcher__chevron {
    transition: transform 0.2s ease;
    opacity: 0.5;
}

.lang-switcher.is-open .lang-switcher__chevron {
    transform: rotate(180deg);
}

/* Dropdown */
.lang-switcher__dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 140px;
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: 14px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    padding: 6px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px) scale(0.97);
    transform-origin: top right;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    z-index: 20;
}

.lang-switcher.is-open .lang-switcher__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.lang-switcher__option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 9px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    transition: background 0.15s ease, color 0.15s ease;
}

@media (hover: hover) {
    .lang-switcher__option:hover {
        background: var(--color-bg-light);
        color: var(--color-primary);
    }
}

.lang-switcher__option img { border-radius: 3px; }

/* --- Socials --- */
.site-header__socials {
    display: flex;
    align-items: center;
    gap: 4px;
}

.site-header__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    color: var(--color-text-muted);
    transition: color 0.2s ease, background 0.2s ease;
}

@media (hover: hover) {
    .site-header__social-link:hover {
        color: var(--color-primary);
        background: rgba(84,187,144,0.08);
    }
}

.site-header__social-link svg { width: 17px; height: 17px; }

/* --- End group: lang + burger --- */
.site-header__end {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
    margin-left: auto;
}

/* --- Burger --- */
.site-header__burger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    flex-shrink: 0;
}

.site-header__burger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 1px;
    transition: transform .28s ease, opacity .28s ease;
    /* margin вместо flex gap — работает во всех браузерах */
}

.site-header__burger span:nth-child(1) { margin-bottom: 5px; }
.site-header__burger span:nth-child(2) { margin-bottom: 5px; }

/* X — translateY = высота span (2px) / 2 + gap (5px) + высота span / 2 = 1+5+1 = 7px */
.site-header__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.site-header__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --- Mobile drawer --- */
.site-header__drawer {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 999;
    padding: 32px 24px;
    transform: translateX(100%);
    transition: transform .35s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}

.site-header__drawer.is-open { transform: translateX(0); }

.drawer-menu { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 4px; }

.drawer-menu a {
    display: block;
    padding: 14px 0;
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
    text-decoration: none;
    transition: color .15s;
}

@media (hover: hover) { .drawer-menu a:hover { color: var(--color-primary); } }

.drawer-menu .sub-menu { list-style: none; padding: 0 0 0 16px; }
.drawer-menu .sub-menu a { font-size: 16px; font-weight: 400; border-bottom: none; padding: 8px 0; }

/* --- Responsive --- */
@media (max-width: 900px) {
    .site-header__nav,
    .site-header__actions { display: none; }

    .site-header__island { padding: 0 20px; gap: 16px; }

    .site-header__burger {
        display: flex;
        margin-left: auto;
        min-width: 44px;  /* tap target */
        min-height: 44px;
        align-items: center;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    /* На мобиле island не скругляем при скролле — занимает всю ширину */
    .site-header.is-scrolled .site-header__track { padding: 8px 12px; }
    .site-header.is-scrolled .site-header__island { border-radius: 14px; }

    /* Drawer — удобные tap targets */
    .drawer-menu a { font-size: 22px; padding: 16px 0; min-height: 56px; }
}