/**
 * Modern Header Styles
 * Clean, minimal design with blue primary header
 */

/* ==========================================================================
   Skip Link (Accessibility)
   ========================================================================== */

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 99999;
    padding: 0.75rem 1.25rem;
    background: var(--color-black);
    color: var(--color-white);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
}

.skip-link:focus {
    left: 0;
}

/* ==========================================================================
   Header Base
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

@media (min-width: 768px) {
    .header-container {
        padding: 0 2rem;
    }
}

/* ==========================================================================
   Main Header (Blue Bar)
   ========================================================================== */

.header-main {
    background: var(--color-primary);
    padding: 0.75rem 0;
}

.header-main .header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

/* ==========================================================================
   Page Links (Left side)
   ========================================================================== */

.header-pages {
    display: none;
}

@media (min-width: 1025px) {
    .header-pages {
        display: block;
        flex: 1;
    }
}

.pages-menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.pages-menu li {
    margin: 0;
}

.pages-menu a {
    display: block;
    padding: 0.5rem 0.75rem;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    transition: color 0.2s ease;
}

.pages-menu a:hover {
    color: var(--color-white);
}

.pages-menu .current-menu-item a {
    color: var(--color-white);
}

/* ==========================================================================
   Logo (Center)
   ========================================================================== */

.header-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.header-logo img {
    display: block;
    height: 38px;
    width: auto;
    filter: brightness(0) invert(1);
}

@media (min-width: 768px) {
    .header-logo img {
        height: 44px;
    }
}

/* ==========================================================================
   Header Actions (Right side)
   ========================================================================== */

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

@media (min-width: 1025px) {
    .header-actions {
        flex: 1;
        justify-content: flex-end;
    }
}

/* Search toggle */
.header-search-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.85);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: color 0.2s ease;
}

.header-search-toggle:hover {
    color: var(--color-white);
}

/* Cart button */
.header-cart {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: opacity 0.2s ease;
}

.header-cart:hover {
    opacity: 0.85;
}

.cart-amount {
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-white);
}

@media (max-width: 767px) {
    .cart-amount {
        display: none;
    }

    .header-cart {
        padding: 0;
        width: 40px;
        height: 40px;
        justify-content: center;
    }
}

.cart-icon {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
}

.cart-count {
    position: absolute;
    top: -6px;
    right: -8px;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    background: var(--color-accent);
    color: var(--color-white);
    font-size: 0.6875rem;
    font-weight: var(--font-weight-semibold);
    line-height: 18px;
    text-align: center;
    border-radius: 9px;
}

.cart-count:empty,
.cart-count[data-count="0"] {
    display: none;
}

/* Mobile menu toggle */
.header-mobile-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
    border-radius: var(--border-radius);
}

@media (min-width: 1025px) {
    .header-mobile-toggle {
        display: none;
    }
}

.toggle-bar {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-white);
    border-radius: 1px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.header-mobile-toggle.is-open .toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.header-mobile-toggle.is-open .toggle-bar:nth-child(2) {
    opacity: 0;
}

.header-mobile-toggle.is-open .toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   Category Navigation (White Bar)
   ========================================================================== */

.header-nav {
    background: var(--color-white);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

@media (max-width: 1024px) {
    .header-nav {
        display: none;
    }
}

.primary-nav {
    padding: 0.375rem 0;
}

.primary-menu {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.125rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

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

.primary-menu > li > a {
    display: block;
    padding: 0.625rem 1rem;
    color: var(--color-gray-700);
    font-size: 0.9375rem;
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: color 0.2s ease;
}

.primary-menu > li > a:hover {
    color: var(--color-primary);
}

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

/* Dropdown indicator */
.primary-menu > li.menu-item-has-children > a::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 0.375rem;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
    vertical-align: middle;
    opacity: 0.5;
    transition: transform 0.2s ease;
}

.primary-menu > li.menu-item-has-children:hover > a::after {
    transform: rotate(180deg);
}

/* Submenu dropdown */
.primary-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    padding: 0.375rem;
    background: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    list-style: none;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(4px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.primary-menu > li.menu-item-has-children:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.primary-menu .sub-menu a {
    display: block;
    padding: 0.5rem 0.875rem;
    color: var(--color-gray-700);
    font-size: 0.875rem;
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    transition: color 0.15s ease;
}

.primary-menu .sub-menu a:hover {
    color: var(--color-primary);
}

/* ==========================================================================
   Mobile Navigation Drawer
   ========================================================================== */

.mobile-nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1100;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-nav-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 100%;
    max-width: 300px;
    background: var(--color-white);
    z-index: 1101;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

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

.mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-gray-100);
    flex-shrink: 0;
}

.mobile-nav-title {
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
}

.mobile-nav-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    background: transparent;
    border: none;
    color: var(--color-gray-400);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: color 0.2s ease;
}

.mobile-nav-close:hover {
    color: var(--color-gray-600);
}

.mobile-nav-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 0;
    -webkit-overflow-scrolling: touch;
}

.mobile-nav-section {
    padding: 0 1.25rem;
    margin-bottom: 1.25rem;
}

.mobile-nav-section:last-child {
    margin-bottom: 0;
}

.mobile-nav-label {
    display: block;
    padding: 0.5rem 0;
    font-size: 0.6875rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-gray-400);
}

.mobile-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-menu li {
    margin: 0;
}

.mobile-menu > li > a {
    display: flex;
    align-items: center;
    padding: 0.75rem 0;
    color: var(--color-gray-800);
    font-size: 0.9375rem;
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    border-bottom: 1px solid var(--color-gray-50);
    transition: color 0.2s ease;
}

.mobile-menu > li:last-child > a {
    border-bottom: none;
}

.mobile-menu > li > a:hover,
.mobile-menu > li.current-menu-item > a {
    color: var(--color-primary);
}

/* Mobile submenu */
.mobile-menu .sub-menu {
    list-style: none;
    margin: 0;
    padding: 0 0 0.5rem 1rem;
}

.mobile-menu .sub-menu a {
    display: block;
    padding: 0.5rem 0;
    color: var(--color-gray-600);
    font-size: 0.875rem;
    text-decoration: none;
    transition: color 0.2s ease;
}

.mobile-menu .sub-menu a:hover {
    color: var(--color-primary);
}

.mobile-menu-pages > li > a {
    font-weight: var(--font-weight-normal);
    color: var(--color-gray-600);
}

/* ==========================================================================
   Search Sidebar
   ========================================================================== */

.search-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1200;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.search-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

.search-sidebar {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-width: 400px;
    background: var(--color-white);
    z-index: 1201;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.search-sidebar.is-open {
    transform: translateX(0);
}

.search-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-gray-100);
    flex-shrink: 0;
}

.search-sidebar-title {
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
}

.search-sidebar-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    background: transparent;
    border: none;
    color: var(--color-gray-400);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: color 0.2s ease;
}

.search-sidebar-close:hover {
    color: var(--color-gray-600);
}

.search-sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
    -webkit-overflow-scrolling: touch;
}

/* Search form */
.search-sidebar-form {
    position: relative;
}

.search-input-group {
    display: flex;
    align-items: center;
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: border-color 0.2s ease;
}

.search-input-group:focus-within {
    border-color: var(--color-primary);
}

.search-sidebar-input {
    flex: 1;
    padding: 0.875rem 1rem;
    border: none;
    background: transparent;
    font-family: var(--font-family-primary);
    font-size: 0.9375rem;
    color: var(--color-gray-800);
    outline: none;
}

.search-sidebar-input::placeholder {
    color: var(--color-gray-400);
}

.search-sidebar-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    background: var(--color-primary);
    border: none;
    color: var(--color-white);
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.search-sidebar-submit:hover {
    background: var(--color-primary-dark);
}

/* Autocomplete styles for sidebar */
.search-sidebar-form .kr-search-dropdown-wrap {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 0.5rem;
    z-index: 10;
}

.search-sidebar-form .kr-search-dropdown {
    background: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    border: 1px solid var(--color-gray-100);
    overflow: hidden;
}

.search-sidebar-form .kr-search-item {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    padding: 0.75rem;
    text-decoration: none;
    transition: background-color 0.15s ease;
}

.search-sidebar-form .kr-search-item:hover {
    background: rgba(50, 70, 255, 0.04);
}

.search-sidebar-form .kr-search-thumb {
    width: 44px;
    height: 44px;
    object-fit: cover;
    border-radius: var(--border-radius-sm);
    background: var(--color-gray-100);
}

.search-sidebar-form .kr-search-title {
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-800);
    margin-bottom: 0.125rem;
}

.search-sidebar-form .kr-search-price {
    font-size: 0.8125rem;
    color: var(--color-gray-500);
}

.search-sidebar-form .kr-search-empty {
    padding: 1.25rem;
    text-align: center;
    color: var(--color-gray-500);
    font-size: 0.875rem;
}

/* ==========================================================================
   Body States
   ========================================================================== */

body.nav-open,
body.search-open {
    overflow: hidden;
}

/* ==========================================================================
   Scroll State
   ========================================================================== */

.site-header.is-scrolled {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* ==========================================================================
   Small Screen Adjustments
   ========================================================================== */

@media (max-width: 374px) {
    .header-container {
        padding: 0 1rem;
    }

    .header-logo img {
        height: 32px;
    }

    .header-actions {
        gap: 0.25rem;
    }
}