/**
 * Milemon Mega Menu Styles
 *
 * @package Milemon
 * @version 0.1.0
 */

/* ============================================
 * BASE NAVIGATION
 * ============================================ */

.main-navigation {
    flex: 1;
    display: flex;
    justify-content: center;
}

.primary-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-lg, 1.5rem);
}

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

.primary-menu a {
    display: block;
    color: var(--color-text-primary, #2d3748);
    text-decoration: none;
    font-weight: var(--font-weight-medium, 500);
    padding: var(--spacing-sm, 0.5rem) 0;
    transition: color var(--transition-fast, 150ms ease);
}

.primary-menu a:hover,
.primary-menu a:focus {
    color: var(--color-primary, #1a365d);
}

/* ============================================
 * MEGA MENU - DESKTOP
 * ============================================ */

/* Menu items with submenus */
.primary-menu li.menu-item-has-children > a::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 6px;
    vertical-align: middle;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
}

/* Mega Menu Container */
.primary-menu .mega-menu {
    position: static;
}

.primary-menu .mega-menu .submenu-container {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 100%;
    width: 100vw;
    max-width: var(--container-max-width, 1400px);
    background: var(--color-surface, #ffffff);
    border-top: 1px solid var(--color-border, #e2e8f0);
    box-shadow: var(--shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, 0.1));
    padding: var(--spacing-xl, 2rem) var(--spacing-md, 1rem);
    z-index: var(--z-dropdown, 100);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base, 250ms ease),
                visibility var(--transition-base, 250ms ease);
}

/* Show mega menu on hover */
.primary-menu .mega-menu:hover > .submenu-container,
.primary-menu .mega-menu:focus-within > .submenu-container {
    opacity: 1;
    visibility: visible;
}

/* Mega Menu Grid Layout */
.mega-menu-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl, 2rem);
    max-width: var(--container-max-width, 1400px);
    margin: 0 auto;
}

/* Mega Menu Column */
.mega-menu-column {
    min-width: 0;
}

.mega-menu-column-title {
    font-size: var(--font-size-sm, 0.875rem);
    font-weight: var(--font-weight-bold, 700);
    color: var(--color-primary, #1a365d);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide, 0.025em);
    margin-bottom: var(--spacing-md, 1rem);
    padding-bottom: var(--spacing-sm, 0.5rem);
    border-bottom: 2px solid var(--color-primary, #1a365d);
}

/* Mega Menu Links */
.mega-menu-links {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mega-menu-links li {
    margin-bottom: var(--spacing-sm, 0.5rem);
}

.mega-menu-links a {
    color: var(--color-text-secondary, #718096);
    font-size: var(--font-size-sm, 0.875rem);
    padding: var(--spacing-xs, 0.25rem) 0;
    transition: color var(--transition-fast, 150ms ease);
}

.mega-menu-links a:hover,
.mega-menu-links a:focus {
    color: var(--color-primary, #1a365d);
}

/* Mega Menu Featured / CTA Column */
.mega-menu-column.mega-menu-featured {
    background: var(--color-background, #f7fafc);
    padding: var(--spacing-lg, 1.5rem);
    border-radius: var(--radius-lg, 0.5rem);
}

.mega-menu-featured-title {
    font-size: var(--font-size-base, 1rem);
    font-weight: var(--font-weight-semibold, 600);
    color: var(--color-text-primary, #2d3748);
    margin-bottom: var(--spacing-md, 1rem);
}

.mega-menu-cta {
    display: inline-block;
    padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem);
    background: var(--color-accent, #e53e3e);
    color: var(--color-text-inverse, #ffffff);
    text-decoration: none;
    border-radius: var(--radius-md, 0.375rem);
    font-weight: var(--font-weight-medium, 500);
    font-size: var(--font-size-sm, 0.875rem);
    transition: background var(--transition-fast, 150ms ease);
    margin-top: var(--spacing-sm, 0.5rem);
}

.mega-menu-cta:hover {
    background: var(--color-accent-dark, #c53030);
    color: var(--color-text-inverse, #ffffff);
}

/* ============================================
 * REGULAR SUBMENU
 * ============================================ */

.primary-menu .submenu-container {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--color-surface, #ffffff);
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: var(--radius-md, 0.375rem);
    box-shadow: var(--shadow-md, 0 4px 6px -1px rgba(0, 0, 0, 0.1));
    padding: var(--spacing-sm, 0.5rem) 0;
    z-index: var(--z-dropdown, 100);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast, 150ms ease),
                visibility var(--transition-fast, 150ms ease);
}

.primary-menu li:hover > .submenu-container,
.primary-menu li:focus-within > .submenu-container {
    opacity: 1;
    visibility: visible;
}

.primary-menu .submenu-container a {
    padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem);
    color: var(--color-text-secondary, #718096);
    font-size: var(--font-size-sm, 0.875rem);
}

.primary-menu .submenu-container a:hover,
.primary-menu .submenu-container a:focus {
    background: var(--color-background, #f7fafc);
    color: var(--color-primary, #1a365d);
}

/* Submenu arrow */
.primary-menu .submenu-container::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 20px;
    width: 14px;
    height: 14px;
    background: var(--color-surface, #ffffff);
    border-left: 1px solid var(--color-border, #e2e8f0);
    border-top: 1px solid var(--color-border, #e2e8f0);
    transform: rotate(45deg);
}

/* ============================================
 * CURRENT ITEM HIGHLIGHT
 * ============================================ */

.primary-menu li.current-menu-item > a,
.primary-menu li.current-menu-ancestor > a {
    color: var(--color-primary, #1a365d);
    font-weight: var(--font-weight-semibold, 600);
}

/* Wholesale CTA in menu */
.primary-menu .menu-item-wholesale a {
    background: var(--color-primary, #1a365d);
    color: var(--color-text-inverse, #ffffff);
    padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem);
    border-radius: var(--radius-md, 0.375rem);
    font-weight: var(--font-weight-medium, 500);
}

.primary-menu .menu-item-wholesale a:hover {
    background: var(--color-primary-dark, #1a202c);
    color: var(--color-text-inverse, #ffffff);
}

.primary-menu .menu-item-quote a {
    background: var(--color-accent, #e53e3e);
    color: var(--color-text-inverse, #ffffff);
    padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem);
    border-radius: var(--radius-md, 0.375rem);
    font-weight: var(--font-weight-medium, 500);
}

.primary-menu .menu-item-quote a:hover {
    background: var(--color-accent-dark, #c53030);
    color: var(--color-text-inverse, #ffffff);
}

/* ============================================
 * MOBILE NAVIGATION
 * ============================================ */

/* Hide desktop nav on mobile */
@media (max-width: 991px) {
    .main-navigation {
        display: none;
    }
}

/* Mobile Menu Open State */
@media (max-width: 991px) {
    .mobile-menu-open .main-navigation {
        display: block;
        position: fixed;
        top: var(--header-height-mobile, 60px);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-surface, #ffffff);
        z-index: var(--z-fixed, 300);
        overflow-y: auto;
        padding: var(--spacing-md, 1rem);
    }

    .mobile-menu-open .primary-menu {
        flex-direction: column;
        gap: 0;
    }

    .mobile-menu-open .primary-menu > li {
        border-bottom: 1px solid var(--color-border, #e2e8f0);
    }

    .mobile-menu-open .primary-menu a {
        padding: var(--spacing-md, 1rem);
        font-size: var(--font-size-base, 1rem);
    }

    /* Mobile submenu toggle */
    .mobile-menu-open .menu-item-has-children > a::after {
        display: none;
    }

    .mobile-menu-open .submenu-toggle {
        display: block;
        position: absolute;
        right: 0;
        top: 0;
        width: 50px;
        height: 50px;
        background: transparent;
        border: none;
        cursor: pointer;
        color: var(--color-text-primary, #2d3748);
    }

    .mobile-menu-open .submenu-toggle::after {
        content: '+';
        font-size: 1.5rem;
        font-weight: bold;
    }

    .mobile-menu-open .submenu-toggle.active::after {
        content: '-';
    }

    /* Mobile submenu */
    .mobile-menu-open .submenu-container {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: var(--color-background, #f7fafc);
        padding-left: var(--spacing-md, 1rem);
        display: none;
    }

    .mobile-menu-open .submenu-container.active {
        display: block;
    }
}

/* ============================================
 * MOBILE MENU TOGGLE
 * ============================================ */

.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm, 0.5rem);
    margin-right: var(--spacing-sm, 0.5rem);
}

.hamburger-icon {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
}

.hamburger-icon span {
    display: block;
    height: 2px;
    background: var(--color-text-primary, #2d3748);
    border-radius: 1px;
    transition: transform var(--transition-fast, 150ms ease),
                opacity var(--transition-fast, 150ms ease);
}

.mobile-menu-open .hamburger-icon span:first-child {
    transform: translateY(8px) rotate(45deg);
}

.mobile-menu-open .hamburger-icon span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-open .hamburger-icon span:last-child {
    transform: translateY(-8px) rotate(-45deg);
}

@media (max-width: 991px) {
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
    }
}

/* ============================================
 * STICKY HEADER
 * ============================================ */

.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky, 200);
    background: var(--color-surface, #ffffff);
    transition: box-shadow var(--transition-base, 250ms ease);
}

.site-header.header-scrolled {
    box-shadow: var(--shadow-md, 0 4px 6px -1px rgba(0, 0, 0, 0.1));
}

/* Hide top bar when scrolled */
.site-header.header-scrolled .top-bar {
    display: none;
}

.site-header.header-scrolled .main-header {
    padding: var(--spacing-sm, 0.5rem) 0;
}

.site-header.header-scrolled .site-branding img {
    max-height: 40px;
}

/* ============================================
 * ACCESSIBILITY
 * ============================================ */

/* Focus styles */
.primary-menu a:focus {
    outline: 2px solid var(--color-primary, #1a365d);
    outline-offset: 2px;
}

/* Keyboard navigation */
.primary-menu .submenu-container {
    pointer-events: none;
}

.primary-menu li:hover > .submenu-container,
.primary-menu li:focus-within > .submenu-container {
    pointer-events: auto;
}

/* Screen reader only */
.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}