.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--color-primary);
    color: #fff;
    height: var(--header-height);
    box-shadow: var(--shadow-md);
}

.header__inner {
    display: flex;
    align-items: center;
    height: var(--header-height);
    gap: 12px;
}

.header__burger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: #fff;
    flex-shrink: 0;
}

.header__burger svg {
    width: 24px;
    height: 24px;
}

.header__logo {
    flex-shrink: 0;
}

.header__logo a {
    color: #fff;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    white-space: nowrap;
}

.header__logo img {
    height: 40px;
    width: auto;
    max-height: calc(var(--header-height) - 16px);
    object-fit: contain;
}

.header__search {
    flex: 1;
    display: none;
}

.header__search-form {
    display: flex;
    background: rgba(255,255,255,0.15);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.header__search-input {
    flex: 1;
    background: transparent;
    border: none;
    color: #fff;
    padding: 8px 12px;
    outline: none;
    font-size: 0.875rem;
}

.header__search-input::placeholder {
    color: rgba(255,255,255,0.6);
}

.header__search-btn {
    padding: 8px 12px;
    color: #fff;
    display: flex;
    align-items: center;
}

.header__search-btn svg {
    width: 18px;
    height: 18px;
}

.header__actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    margin-left: auto;
}

.header__action-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: #fff;
}

.header__lang {
    margin: 0;
}

.header__lang-select {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    font-size: 0.8125rem;
    cursor: pointer;
}

.header__lang-select option {
    background: var(--color-primary);
    color: #fff;
}

.header__action-btn svg {
    width: 22px;
    height: 22px;
}

.header__cart-count {
    position: absolute;
    top: 2px;
    right: 2px;
    background: var(--color-accent);
    color: var(--color-primary-dark);
    font-size: 0.625rem;
    font-weight: 700;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.header__phones {
    display: none;
    align-items: center;
    gap: 16px;
}

.header__phone-link {
    color: #fff;
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
}

.header__phone-link:hover {
    color: var(--color-accent);
}

.promo-banner {
    background: var(--color-accent);
    color: var(--color-primary-dark);
    text-align: center;
    padding: 6px var(--container-padding);
    font-size: 0.8125rem;
    font-weight: 500;
}

.promo-banner a {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 85%;
    max-width: 320px;
    height: 100%;
    background: var(--color-bg-white);
    z-index: 2000;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: env(safe-area-inset-top, 0) 0 env(safe-area-inset-bottom, 0) 0;
}

.mobile-menu.is-open {
    transform: translateX(0);
}

.mobile-menu__overlay {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-menu__overlay.is-visible {
    opacity: 1;
    visibility: visible;
}

.mobile-menu__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-primary);
    color: #fff;
}

.mobile-menu__close {
    color: #fff;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu__close svg {
    width: 24px;
    height: 24px;
}

.mobile-menu__nav {
    padding: 8px 0;
}

.mobile-menu__link {
    display: block;
    padding: 12px 16px;
    color: var(--color-text);
    font-size: 0.9375rem;
    border-bottom: 1px solid var(--color-border-light);
    transition: background var(--transition);
}

.mobile-menu__link:hover {
    background: var(--color-bg);
}

.mobile-menu__phones {
    padding: 16px;
    border-top: 1px solid var(--color-border);
}

.mobile-menu__phone {
    display: block;
    padding: 6px 0;
    color: var(--color-accent);
    font-weight: 500;
}

.mobile-menu__logout-form {
    display: block;
    margin: 0;
}

.mobile-menu__link--button {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    font: inherit;
    color: inherit;
    cursor: pointer;
    padding: 12px 16px;
}

.category-nav {
    background: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border-light);
    display: none;
}

.category-nav__inner {
    display: flex;
    align-items: stretch;
}

.category-nav__list {
    display: flex;
    gap: 0;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    flex: 1;
    min-width: 0;
}

.category-nav__list::-webkit-scrollbar {
    display: none;
}

.category-nav__link {
    flex-shrink: 0;
    padding: 10px 16px;
    font-size: 0.8125rem;
    color: var(--color-text);
    white-space: nowrap;
    transition: color var(--transition), background var(--transition);
    border-bottom: 2px solid transparent;
}

.category-nav__link:hover {
    color: var(--color-accent);
    background: var(--color-bg);
    border-bottom-color: var(--color-accent);
}

.category-nav__megamenu {
    position: relative;
    flex-shrink: 0;
}

.category-nav__link--all {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    color: var(--color-text);
    background: var(--color-bg);
    border-bottom: 2px solid transparent;
    cursor: pointer;
}

.category-nav__link--all svg {
    width: 16px;
    height: 16px;
}

.category-nav__chevron {
    transition: transform 0.2s ease;
}

.megamenu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1100;
    width: min(960px, calc(100vw - 32px));
    background: var(--color-bg-white);
    border: 1px solid var(--color-border-light);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity 0.18s ease, visibility 0.18s ease, transform 0.18s ease;
}

.category-nav__megamenu:hover .megamenu,
.category-nav__megamenu:focus-within .megamenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.category-nav__megamenu:hover .category-nav__chevron,
.category-nav__megamenu:focus-within .category-nav__chevron {
    transform: rotate(180deg);
}

.category-nav__megamenu:hover .category-nav__link--all,
.category-nav__megamenu:focus-within .category-nav__link--all {
    color: var(--color-accent);
}

.megamenu__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 18px;
}

.megamenu__column {
    min-width: 0;
}

.megamenu__title {
    display: flex;
    align-items: center;
    color: var(--color-accent);
    font-size: 0.9375rem;
    font-weight: 700;
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    transition: background 0.15s ease, color 0.15s ease;
}

.megamenu__title:hover {
    background: var(--color-bg);
    color: var(--color-accent);
}

.megamenu__title-img {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
}

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

.megamenu__link {
    display: block;
    padding: 4px 6px;
    color: var(--color-text-light);
    font-size: 0.8125rem;
    border-radius: var(--radius-sm);
    transition: background 0.15s ease, color 0.15s ease;
}

.megamenu__link:hover {
    background: var(--color-bg);
    color: var(--color-accent);
}

@supports (padding: env(safe-area-inset-top)) {
    .site-header {
        padding-top: env(safe-area-inset-top);
        height: calc(var(--header-height) + env(safe-area-inset-top));
    }
    body {
        padding-top: calc(var(--header-height) + env(safe-area-inset-top));
    }
    @media (min-width: 768px) {
        .category-nav {
            top: calc(var(--header-height) + env(safe-area-inset-top));
        }
        body {
            padding-top: calc(var(--header-height) + var(--category-nav-height) + env(safe-area-inset-top));
        }
    }
}

.header__cart-wrap {
    position: relative;
}

.header__cart-count--hidden {
    display: none;
}

.mini-cart {
    position: absolute;
    top: 100%;
    right: 0;
    width: min(320px, calc(100vw - 24px));
    max-width: 100vw;
    max-height: 400px;
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    display: none;
    z-index: 1001;
}

.mini-cart.is-visible {
    display: block;
}

.mini-cart__header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border-light);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-text);
}

.mini-cart__items {
    max-height: 240px;
    overflow-y: auto;
    padding: 8px 16px;
}

.mini-cart__item {
    display: flex;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-border-light);
    font-size: 0.8125rem;
    color: var(--color-text);
}

.mini-cart__item:last-child {
    border-bottom: none;
}

.mini-cart__item-img {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
}

.mini-cart__item-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.mini-cart__item-meta {
    color: var(--color-text-muted);
}

.mini-cart__empty {
    padding: 16px;
    text-align: center;
    color: var(--color-text-muted);
}

.mini-cart__footer {
    padding: 12px 16px;
    border-top: 1px solid var(--color-border);
}

.mini-cart__total {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 0.9375rem;
    color: var(--color-text);
}