/**
 * Header Styles
 *
 * @package My_Premium_Theme
 */

/* ==========================================================================
   Header
   ========================================================================== */
.mpt-header {
    position: relative;
    z-index: var(--mpt-z-sticky);
    background: var(--mpt-white);
    box-shadow: var(--mpt-shadow-sm);
}

.mpt-header-default {
    background: var(--mpt-white);
}

.mpt-header-transparent {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: transparent;
    box-shadow: none;
}

.mpt-header.is-sticky {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--mpt-white);
    box-shadow: var(--mpt-shadow-md);
    animation: mpt-slide-down var(--mpt-transition-normal) ease;
}

.mpt-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--mpt-spacing-xl);
    height: 80px;
}

/* ==========================================================================
   Logo
   ========================================================================== */
.mpt-logo {
    flex-shrink: 0;
}

.mpt-logo a {
    display: flex;
    align-items: center;
}

.mpt-logo img {
    max-height: 50px;
    width: auto;
}

.mpt-site-title {
    font-family: var(--mpt-font-secondary);
    font-size: var(--mpt-text-2xl);
    font-weight: var(--mpt-font-bold);
    color: var(--mpt-secondary);
    text-decoration: none;
}

.mpt-site-title:hover {
    color: var(--mpt-primary);
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.mpt-main-navigation {
    flex: 1;
    display: flex;
    justify-content: center;
}

.mpt-menu {
    display: flex;
    align-items: center;
    gap: var(--mpt-spacing-xs);
    list-style: none;
    margin: 0;
    padding: 0;
}

.mpt-menu li {
    position: relative;
}

.mpt-menu > li > a {
    display: flex;
    align-items: center;
    gap: var(--mpt-spacing-xs);
    padding: var(--mpt-spacing-sm) var(--mpt-spacing-md);
    font-weight: var(--mpt-font-medium);
    color: var(--mpt-secondary);
    transition: color var(--mpt-transition-fast);
}

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

/* Dropdown */
.mpt-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    padding: var(--mpt-spacing-sm) 0;
    background: var(--mpt-white);
    border-radius: var(--mpt-radius-lg);
    box-shadow: var(--mpt-shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--mpt-transition-fast);
    list-style: none;
    margin: 0;
}

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

.mpt-menu .sub-menu li a {
    display: block;
    padding: var(--mpt-spacing-sm) var(--mpt-spacing-lg);
    color: var(--mpt-gray-700);
    transition: all var(--mpt-transition-fast);
}

.mpt-menu .sub-menu li a:hover {
    color: var(--mpt-primary);
    background: var(--mpt-gray-50);
}

/* Nested dropdown */
.mpt-menu .sub-menu .sub-menu {
    top: 0;
    left: 100%;
}

/* ==========================================================================
   Header Actions
   ========================================================================== */
.mpt-header-actions {
    display: flex;
    align-items: center;
    gap: var(--mpt-spacing-sm);
}

.mpt-header-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    border: none;
    color: var(--mpt-secondary);
    cursor: pointer;
    border-radius: var(--mpt-radius-lg);
    transition: all var(--mpt-transition-fast);
}

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

/* Cart */
.mpt-cart-link {
    position: relative;
}

.mpt-cart-count {
    position: absolute;
    top: 4px;
    right: 4px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: var(--mpt-primary);
    color: var(--mpt-white);
    font-size: 11px;
    font-weight: var(--mpt-font-bold);
    border-radius: var(--mpt-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Mobile Menu Toggle */
.mpt-menu-toggle {
    display: none;
}

.mpt-menu-toggle-icon {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 22px;
}

.mpt-menu-toggle-icon span {
    display: block;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: all var(--mpt-transition-fast);
}

.mpt-menu-toggle[aria-expanded="true"] .mpt-menu-toggle-icon span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mpt-menu-toggle[aria-expanded="true"] .mpt-menu-toggle-icon span:nth-child(2) {
    opacity: 0;
}

.mpt-menu-toggle[aria-expanded="true"] .mpt-menu-toggle-icon span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   Mobile Menu
   ========================================================================== */
.mpt-mobile-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--mpt-white);
    padding: var(--mpt-spacing-lg);
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform var(--mpt-transition-normal);
    z-index: var(--mpt-z-fixed);
}

.mpt-mobile-menu[aria-hidden="false"] {
    transform: translateX(0);
}

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

.mpt-mobile-menu-list li {
    border-bottom: 1px solid var(--mpt-gray-100);
}

.mpt-mobile-menu-list a {
    display: block;
    padding: var(--mpt-spacing-md) 0;
    font-size: var(--mpt-text-lg);
    font-weight: var(--mpt-font-medium);
    color: var(--mpt-secondary);
}

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

.mpt-mobile-menu-list .sub-menu {
    list-style: none;
    padding-left: var(--mpt-spacing-lg);
    margin: 0;
}

.mpt-mobile-menu-list .sub-menu a {
    font-size: var(--mpt-text-base);
    font-weight: var(--mpt-font-normal);
}

/* ==========================================================================
   Search Modal
   ========================================================================== */
.mpt-search-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--mpt-transition-normal);
    z-index: var(--mpt-z-modal);
}

.mpt-search-modal[aria-hidden="false"] {
    opacity: 1;
    visibility: visible;
}

.mpt-search-modal-inner {
    width: 100%;
    max-width: 700px;
    padding: var(--mpt-spacing-xl);
}

.mpt-search-form {
    display: flex;
    gap: var(--mpt-spacing-md);
}

.mpt-search-input {
    flex: 1;
    padding: var(--mpt-spacing-md) var(--mpt-spacing-lg);
    font-size: var(--mpt-text-xl);
    background: var(--mpt-white);
    border: none;
    border-radius: var(--mpt-radius-lg);
}

.mpt-search-input:focus {
    outline: none;
}

.mpt-search-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    background: var(--mpt-primary);
    border: none;
    border-radius: var(--mpt-radius-lg);
    color: var(--mpt-white);
    cursor: pointer;
    transition: background var(--mpt-transition-fast);
}

.mpt-search-submit:hover {
    background: var(--mpt-primary-hover);
}

.mpt-search-close {
    position: absolute;
    top: var(--mpt-spacing-xl);
    right: var(--mpt-spacing-xl);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--mpt-white);
    cursor: pointer;
    transition: transform var(--mpt-transition-fast);
}

.mpt-search-close:hover {
    transform: rotate(90deg);
}

/* ==========================================================================
   Page Loader
   ========================================================================== */
#mpt-page-loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(15, 23, 42, 0.96); /* dark overlay */
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

body.mpt-loaded #mpt-page-loader {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.mpt-page-loader-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--mpt-white);
}

.mpt-page-loader-spinner {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 3px solid rgba(148, 163, 184, 0.35);
    border-top-color: var(--mpt-primary);
    animation: mpt-spin 0.8s linear infinite;
}

@keyframes mpt-spin {
    to {
        transform: rotate(360deg);
    }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
    .mpt-main-navigation {
        display: none;
    }
    
    .mpt-menu-toggle {
        display: flex;
    }
}