/* ============ HEADER ============ */
.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

/* Top bar */
.header-top {
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 0.8rem;
    padding: 6px 0;
    text-align: center;
}

.header-top a {
    color: var(--color-accent-light);
}
.header-top a:hover {
    color: var(--color-accent-hover);
}

/* Main header */
.header-main {
    padding: 0 var(--container-padding);
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max);
    margin: 0 auto;
}

/* Logo */
.header-logo a {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.5px;
}

.header-logo span {
    color: var(--color-accent);
}

/* Navigation */
.header-nav {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    flex: 1;
    justify-content: center;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-links a {
    font-weight: 500;
    font-size: 0.75rem;
    color: var(--color-primary);
    position: relative;
    padding: var(--space-sm) var(--space-xs);
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a:hover {
    color: var(--color-accent);
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 200px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--space-sm) 0;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: var(--z-dropdown);
}

/* Invisible bridge so hover doesn't break when crossing the gap */
.nav-dropdown::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 16px;
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu a {
    display: block;
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.9rem;
}

.nav-dropdown-menu a:hover {
    background: var(--color-gray-50);
    color: var(--color-accent);
}

.nav-dropdown-menu a::after { display: none; }

/* Mega Menu */
.nav-mega .mega-menu {
    min-width: 780px;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    padding: var(--space-xl) var(--space-xl);
    border-radius: var(--radius-lg);
}

.nav-mega:hover .mega-menu {
    transform: translateX(-50%) translateY(0);
}

.mega-menu-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-xl);
}

.mega-col {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mega-heading {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--color-primary);
    padding: 0 0 var(--space-xs) 0;
    margin-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-accent);
}

.mega-col a {
    padding: 5px 0 !important;
    font-size: 0.8rem !important;
    white-space: nowrap;
    color: var(--color-gray-500) !important;
    line-height: 1.5;
    transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.mega-col a:hover {
    background: none !important;
    color: var(--color-accent) !important;
    padding-left: 4px !important;
}

.mega-col a.mega-view-all {
    margin-top: var(--space-xs);
    font-weight: 600;
    color: var(--color-accent) !important;
    font-size: 0.78rem !important;
    border-top: 1px solid var(--color-gray-200);
    padding-top: 8px !important;
}

.mega-col a.mega-view-all:hover {
    color: var(--color-primary) !important;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.header-action-btn {
    position: relative;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    font-size: 1.1rem;
}

.header-action-btn:hover {
    background: var(--color-gray-100);
    color: var(--color-accent);
}

.cart-count {
    position: absolute;
    top: 2px;
    right: 2px;
    background: var(--color-accent);
    color: var(--color-white);
    font-size: 0.65rem;
    font-weight: 700;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Inline expanding search */
.header-search-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.header-search-form {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    overflow: hidden;
    opacity: 0;
    transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease;
    pointer-events: none;
}

.header-search-wrap.active .header-search-form {
    width: 280px;
    opacity: 1;
    pointer-events: auto;
}

.header-search-wrap.active #search-toggle {
    opacity: 0;
    pointer-events: none;
}

.header-search-form input {
    width: 100%;
    padding: 8px 36px 8px 16px;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-full);
    outline: none;
    font-size: 0.9rem;
    background: var(--color-white);
    transition: border-color var(--transition-fast);
}

.header-search-form input:focus {
    border-color: var(--color-accent);
}

.header-search-close {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-gray-400);
    font-size: 0.85rem;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
}

.header-search-close:hover {
    color: var(--color-primary);
}

.search-autocomplete {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    max-height: 400px;
    overflow-y: auto;
    display: none;
    z-index: var(--z-dropdown);
}

.search-autocomplete.active {
    display: block;
}

.search-autocomplete-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.search-autocomplete-item:hover {
    background: var(--color-gray-50);
}

.search-autocomplete-item img {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-primary);
    transition: all var(--transition-base);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}
.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-menu-toggle { display: flex; margin-left: -8px; }

    .header-top {
        display: none;
    }

    .site-header {
        z-index: 500;
    }

    .header-main {
        height: var(--header-height);
    }

    .header-logo a {
        font-size: 1.4rem;
    }

    /* Hide some header actions on mobile — bottom nav handles them */
    .header-actions #wishlist-toggle {
        display: none;
    }

    /* Search: full-width bar below header on mobile */
    .header-search-wrap.active .header-search-form {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        width: 100%;
        height: 52px;
        transform: none;
        background: var(--color-white);
        display: flex;
        align-items: center;
        padding: 0 var(--space-md);
        z-index: 600;
        box-shadow: 0 4px 16px rgba(0, 0, 0, .1);
    }

    .header-search-wrap.active .header-search-form input {
        flex: 1;
        font-size: 1rem;
        padding: 10px 40px 10px 16px;
    }

    .header-search-wrap.active .header-search-form .header-search-close {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        margin-left: var(--space-sm);
        font-size: 1.1rem;
        width: 36px;
        height: 36px;
    }

    .header-search-wrap.active .search-autocomplete {
        position: fixed;
        top: calc(var(--header-height) + 52px);
        left: 0;
        right: 0;
        border-radius: 0;
        max-height: 60vh;
    }
}

/* ============ MOBILE MENU ============ */
.mobile-menu {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height) - 60px);
    background: var(--color-white);
    z-index: 450;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-overflow-scrolling: touch;
}

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

@media (max-width: 768px) {
    .mobile-menu { display: block; }
}

.mobile-menu-inner {
    padding: var(--space-xl) var(--space-lg) 80px;
}

/* Mobile nav list */
.mobile-nav {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-nav > li {
    border-bottom: 1px solid var(--color-gray-100);
}

.mobile-nav > li > a {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 14px 0;
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--color-primary);
    text-decoration: none;
}

.mobile-nav > li > a i {
    width: 22px;
    text-align: center;
    color: var(--color-accent);
    font-size: 1rem;
}

/* Mobile nav group (Category with submenu) */
.mobile-nav-group {
    border-bottom: 1px solid var(--color-gray-100);
}

.mobile-nav-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.mobile-nav-group-header > a {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 14px 0;
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--color-primary);
    text-decoration: none;
    flex: 1;
}

.mobile-nav-group-header > a i {
    width: 22px;
    text-align: center;
    color: var(--color-accent);
    font-size: 1rem;
}

.mobile-submenu-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-gray-400);
    font-size: 0.75rem;
    transition: transform 0.3s ease, color 0.2s;
    border-radius: var(--radius-full);
}

.mobile-submenu-toggle:hover {
    background: var(--color-gray-50);
    color: var(--color-primary);
}

.mobile-nav-group.open .mobile-submenu-toggle {
    transform: rotate(180deg);
    color: var(--color-accent);
}

/* Mobile submenu (accordion) */
.mobile-submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    padding-left: var(--space-lg);
}

.mobile-nav-group.open .mobile-submenu {
    max-height: 2000px;
}

.mobile-submenu-section {
    margin-bottom: var(--space-sm);
}

.mobile-submenu-heading {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-primary);
    padding: var(--space-sm) 0 4px;
    border-bottom: 1.5px solid var(--color-accent);
    margin-bottom: 4px;
    display: inline-block;
}

.mobile-submenu-section ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-submenu-section ul li a {
    display: block;
    padding: 6px 0 6px var(--space-sm);
    font-size: 0.85rem;
    color: var(--color-gray-500);
    text-decoration: none;
    transition: color 0.2s, padding-left 0.2s;
    border-left: 2px solid transparent;
}

.mobile-submenu-section ul li a:hover,
.mobile-submenu-section ul li a:active {
    color: var(--color-accent);
    padding-left: var(--space-md);
    border-left-color: var(--color-accent);
}