/**
 * Mega Menu Block Styles
 * 
 * A full-width navigation bar with expandable catalogue dropdown
 */

/* CSS Custom Properties */
.ims-mega-menu-wrapper {
    --mega-menu-bg: var(--color-primary, #FAB000);
    --mega-menu-text: var(--color-dark, #111111);
    --mega-menu-dropdown-bg: #ffffff;
    --mega-menu-hover: rgba(0, 0, 0, 0.1);
    --mega-menu-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    --mega-menu-border: var(--color-border, #e5e7eb);
    --mega-menu-link-hover: var(--color-primary, #FAB000);
}

/* Main Navigation Bar */
.ims-mega-menu-wrapper {
    background-color: var(--mega-menu-bg);
    position: relative;
    z-index: 1100;
    width: 100%;
}

.mega-menu-container {
    max-width: 1400px;
    margin: 0 auto;
    /* padding: 0 1.5rem; */
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Navigation List */
.mega-menu-nav {
    display: flex;
    align-items: center;
    gap: 0;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* Menu Items */
.mega-menu-item {
    position: relative;
}

.mega-menu-link,
.mega-menu-trigger,
a.mega-menu-trigger {
    display: flex !important;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.25rem;
    color: var(--mega-menu-text) !important;
    text-decoration: none !important;
    font-size: 0.9375rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
    white-space: nowrap;
}

/* Ensure catalogue trigger is visible */
.mega-menu-item.has-dropdown .mega-menu-trigger {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.mega-menu-link:hover,
.mega-menu-trigger:hover,
.mega-menu-trigger[aria-expanded="true"] {
    background-color: var(--mega-menu-hover);
    color: var(--mega-menu-text);
    text-decoration: none;
}

/* Dropdown Arrow */
.dropdown-arrow {
    transition: transform 0.25s ease;
    flex-shrink: 0;
}

.mega-menu-trigger[aria-expanded="true"] .dropdown-arrow {
    transform: rotate(180deg);
}

/* Right Side Links */
.mega-menu-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mega-menu-right .mega-menu-link {
    font-weight: 500;
    text-transform: none;
}

/* ============================================
   MEGA DROPDOWN PANEL
   ============================================ */

.mega-dropdown {
    position: fixed;
    top: auto;
    left: 0;
    right: 0;
    width: 100vw;
    background: var(--mega-menu-dropdown-bg);
    box-shadow: var(--mega-menu-shadow);
    opacity: 0;
    visibility: hidden;
    /* Keep dropdown pinned to the bottom of the nav at all times.
       Prior translateY(-10px) created a 10px gap during the opening
       transition that caused hover flicker on the catalog trigger. */
    transform: none;
    transition: opacity 0.2s ease, visibility 0.2s;
    z-index: 9999;
    /* Fixed height - content flows in columns */
    height: 70vh;
    max-height: 600px;
    min-height: 400px;
    overflow: hidden;
}

.mega-dropdown[aria-hidden="false"] {
    opacity: 1;
    visibility: visible;
}

.mega-dropdown-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* Dropdown Header */
.mega-dropdown-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 1.25rem;
    margin-bottom: 1.25rem;
    border-bottom: 1px solid var(--mega-menu-border);
}

.catalogue-title {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--mega-menu-text);
    margin: 0;
}

.browse-all-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: var(--mega-menu-bg);
    color: var(--mega-menu-text);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.browse-all-link:hover {
    background: var(--color-gold-accent);
    color: var(--mega-menu-text);
    text-decoration: none;
    transform: translateX(3px);
}

.browse-all-link svg {
    transition: transform 0.2s ease;
}

.browse-all-link:hover svg {
    transform: translateX(3px);
}

/* Close Button — prototype style: slim muted pill that turns red on hover */
.mega-dropdown-close {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    background: transparent;
    border: 1px solid var(--mega-menu-border, #e5e7eb);
    border-radius: 5px;
    color: #6b7280;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    line-height: 1.4;
    cursor: pointer;
    transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.mega-dropdown-close svg {
    width: 12px;
    height: 12px;
    color: currentColor;
    stroke-width: 2;
    transition: color 0.15s ease;
}

.mega-dropdown-close:hover,
.mega-dropdown-close:focus-visible {
    color: #dc2626;
    border-color: #dc2626;
    background: transparent;
}

/* ============================================
   CATEGORY GROUPS
   ============================================ */

.mega-dropdown-content {
    padding-top: 0.5rem;
    flex: 1;
    overflow: hidden;
    position: relative;
}

/* CSS columns for natural flow */
.category-groups {
    column-count: 3;
    column-gap: 2rem;
    column-fill: auto;
    height: 100%;
}

.category-group {
    margin-bottom: 1.25rem;
    break-inside: auto;
    transition: margin 0.3s ease-out;
}

.category-group-heading {
    margin: 0 0 0.5rem 0;
    font-size: 0.9375rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    break-after: avoid;
}

.category-group-heading a {
    display: inline-block;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--mega-menu-bg);
    color: var(--color-dark);
    text-decoration: none;
    transition: color 0.15s ease;
}

.category-group-heading a:hover {
    color: var(--mega-menu-bg);
}

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

.category-item {
    margin: 0;
    padding: 0;
}

.category-item a {
    display: block;
    padding: 0.375rem 0;
    color: #374151;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.3;
    margin: 0;
    transition: color 0.15s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.category-item a:hover {
    color: var(--mega-menu-bg);
    text-decoration: none;
}

/* Row = [+] [name link]. The <ul class="category-children"> is a
   sibling below, stacking naturally as a block. */
.category-item.has-children {
    position: relative;
}

.category-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.category-item--level-2:not(.has-children) > .category-row > .category-link {
    font-weight: 500;
    color: #374151;
}

/* Toggle is now a compact standalone button — just the + square. */
.category-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
    background: none;
    border: none;
    cursor: pointer;
    line-height: 1;
    flex-shrink: 0;
}

.category-toggle:focus { outline: none; }

/* The name link fills the rest of the row so the clickable target is
   wide; styles are otherwise inherited from .category-item a. */
.category-link {
    /* Shrink to text width so :focus / tap-highlight / active states only
       paint around the label, not the full row. Previously `flex: 1` made
       the anchor fill the remaining row width, which made clicks appear to
       highlight the entire line. */
    flex: 0 0 auto;
    min-width: 0;
    align-self: center;
}

/* Plus/minus icon — prototype style: gold-outlined white square,
   fills gold on hover / when the parent is expanded. */
.toggle-plus-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 17px;
    height: 17px;
    padding: 0;
    border: 1.5px solid var(--mega-menu-bg, #FAB000);
    border-radius: 3px;
    background-color: #ffffff;
    color: var(--mega-menu-bg, #FAB000);
    font-size: 13px;
    font-weight: 700;
    line-height: 1;
    flex-shrink: 0;
    transition: background-color 0.12s ease, color 0.12s ease;
}

.category-toggle:hover .toggle-plus-icon,
.category-toggle[aria-expanded="true"] .toggle-plus-icon {
    background-color: var(--mega-menu-bg, #FAB000);
    color: #ffffff;
}

.category-toggle:focus-visible .toggle-plus-icon {
    outline: 2px solid var(--color-cta, var(--mega-menu-bg));
    outline-offset: 2px;
}

/* Arrow link to view category - hidden by request */
.category-link-icon {
    display: none !important;
}

/* Level-3+ smaller plus icon */
.category-item--level-3 .toggle-plus-icon,
.category-item--level-4 .toggle-plus-icon,
.category-item--level-5 .toggle-plus-icon,
.category-item--level-6 .toggle-plus-icon {
    width: 15px;
    height: 15px;
    font-size: 11px;
    border-width: 1px;
}

/* Collapsible children container - uses display for column reflow */
.category-children {
    list-style: none;
    margin: 0;
    padding: 0;
    padding-left: 0.4rem;
    width: 100%;
    display: none;
}

.category-children[aria-hidden="false"] {
    display: block;
}

/* Stagger animations removed — child items render instantly on expand so
   text never appears to lag behind the layout slot it occupies. */

/* Level 3+ styling - match level 2 */
.category-item--level-3 > .category-row > .category-link,
.category-item--level-4 > .category-row > .category-link,
.category-item--level-5 > .category-row > .category-link,
.category-item--level-6 > .category-row > .category-link {
    font-weight: 500;
    font-size: 0.875rem;
    color: #374151;
    padding: 0.375rem 0;
}

/* Nested category-children get more indentation */
.category-children .category-children {
    padding-left: 0.5rem;
}

.no-categories {
    color: #6b7280;
    font-style: italic;
    padding: 2rem;
    text-align: center;
}

/* ============================================
   OVERLAY WHEN DROPDOWN IS OPEN
   ============================================ */

.mega-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s;
    z-index: 998;
}

.mega-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Body class when mega menu is open */
body.mega-menu-open {
    overflow: hidden;
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */

@media (max-width: 1200px) {
    .category-groups {
        column-gap: 1.5rem;
    }
}

@media (max-width: 992px) {
    .mega-menu-container {
        padding: 0 1rem;
    }
    
    .mega-menu-link,
    .mega-menu-trigger {
        padding: 0.75rem 1rem;
        font-size: 0.875rem;
    }
    
    .category-groups {
        column-count: 2;
        column-gap: 1.5rem;
    }
    
    .mega-dropdown-inner {
        padding: 1.25rem 1.5rem 1.5rem;
    }
    
    .catalogue-title {
        font-size: 1.25rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .mega-menu-right {
        display: none;
    }
}

@media (max-width: 768px) {
    .mega-menu-nav {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    
    .mega-menu-nav::-webkit-scrollbar {
        display: none;
    }
    
    .mega-menu-link,
    .mega-menu-trigger {
        padding: 0.625rem 0.875rem;
        font-size: 0.8125rem;
    }
    
    .mega-dropdown {
        height: auto;
        max-height: calc(100vh - 150px);
        min-height: auto;
        overflow-y: auto;
    }
    
    .mega-dropdown-inner {
        padding: 1rem;
        height: auto;
    }
    
    .mega-dropdown-content {
        overflow: visible;
    }
    
    .category-groups {
        column-count: 1;
        height: auto;
    }
    
    .mega-dropdown-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .catalogue-title {
        font-size: 1.125rem;
        width: 100%;
    }
    
    .browse-all-link {
        width: 100%;
        justify-content: center;
    }
    
    .mega-dropdown-close {
        position: absolute;
        top: 1rem;
        right: 1rem;
        padding: 0.375rem 0.625rem;
        font-size: 0.75rem;
    }
    
    .category-group {
        border-bottom: 1px solid var(--mega-menu-border);
        padding-bottom: 1rem;
        margin-bottom: 1rem;
    }
    
    .category-group:last-child {
        border-bottom: none;
        padding-bottom: 0;
        margin-bottom: 0;
    }
    
    .category-item a {
        padding: 0.5rem 0;
        font-size: 0.875rem;
    }
}

/* ============================================
   ANIMATION EFFECTS
   ============================================ */

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mega-dropdown[aria-hidden="false"] .category-groups {
    animation: fadeInDown 0.3s ease forwards;
}

/* ============================================
   ACCESSIBILITY FOCUS STATES
   ============================================ */

.mega-menu-link:focus,
.mega-menu-trigger:focus,
.browse-all-link:focus,
.mega-dropdown-close:focus,
.category-item a:focus {
    outline: none;
    box-shadow: none;
    background-color: rgba(0, 0, 0, 0.06);
}

/* Visible focus for keyboard users */
.mega-menu-link:focus-visible,
.mega-menu-trigger:focus-visible,
.browse-all-link:focus-visible,
.mega-dropdown-close:focus-visible,
.category-item a:focus-visible {
    outline: none;
    background-color: rgba(0, 0, 0, 0.06);
    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.25);
    border-radius: 4px;
}

/* ==========================================================================
   Prototype Parity — nav bar look & sticky behaviour
   ========================================================================== */

/* Sticky nav bar below compact header. Top value generous enough to
   account for any sub-pixel rendering / box-shadow so the nav can't
   drift under the header on scroll direction change. */
.ims-mega-menu-wrapper {
    position: sticky;
    top: 76px;
    z-index: 999; /* below .compact-header (1000), above .mega-menu-overlay (998) */
}

/* Max-width matches header: content area = 1440px at wide viewports, and
   inset = 24px once the viewport is narrower than 1440+48. The extra 48px
   on max-width accounts for the container's own horizontal padding so the
   *content* edges align with .compact-header's inner group (max-width 1440
   with no padding). */
.ims-mega-menu-wrapper .mega-menu-container {
    /* max-width: 1488px; */
    /* padding: 0 24px; */
    justify-content: flex-start;
}

/* Nav list takes full width so the right-side links can push to the end. */
.ims-mega-menu-wrapper .mega-menu-nav {
    flex: 1;
    align-items: stretch;
}

.ims-mega-menu-wrapper .mega-menu-item {
    display: flex;
    align-items: stretch;
}

/* Nav link typography + sizing to match prototype. */
.ims-mega-menu-wrapper .mega-menu-link,
.ims-mega-menu-wrapper .mega-menu-trigger,
.ims-mega-menu-wrapper a.mega-menu-trigger {
    height: 38px;
    padding: 0 14px !important;
    color: rgba(0, 0, 0, 0.82) !important;
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    gap: 5px;
}

/* Highlighted nav item: solid black "tab" with white text, leaving a
   thin sliver of the yellow nav bar visible at the bottom edge so the
   highlight reads as a tab dropping down from the dark header above. */
.ims-mega-menu-wrapper .mega-menu-link:hover,
.ims-mega-menu-wrapper .mega-menu-trigger:hover,
.ims-mega-menu-wrapper .mega-menu-trigger[aria-expanded="true"] {
    background-color: transparent !important;
    background-image: linear-gradient(
        to bottom,
        #111111 0,
        #111111 calc(100% - 3px),
        transparent calc(100% - 3px),
        transparent 100%
    ) !important;
    color: #ffffff !important;
}

.ims-mega-menu-wrapper .mega-menu-link:hover .dropdown-arrow,
.ims-mega-menu-wrapper .mega-menu-trigger:hover .dropdown-arrow,
.ims-mega-menu-wrapper .mega-menu-trigger[aria-expanded="true"] .dropdown-arrow {
    color: #ffffff;
}

/* Smaller chevron for the catalog trigger. */
.ims-mega-menu-wrapper .dropdown-arrow {
    width: 12px;
    height: 12px;
}

/* Right-side links pushed to the far end, styled like nav items. */
.ims-mega-menu-wrapper .mega-menu-right {
    margin-left: auto;
    align-items: stretch;
    gap: 0;
}

.ims-mega-menu-wrapper .mega-menu-right .mega-menu-link {
    height: 38px;
    padding: 0 14px !important;
    font-weight: 700 !important;
    font-size: 12.5px;
    letter-spacing: 0.6px;
    text-transform: uppercase !important;
}

/* Sale! nav item — red pill badge, matches prototype */
.ims-mega-menu-wrapper .mega-menu-item.sale-item .mega-menu-link {
    display: inline-flex;
    align-items: center;
}
.ims-mega-menu-wrapper .mega-menu-item.sale-item .sale-badge {
    background: #DC2626;
    color: #ffffff;
    padding: 2px 7px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    line-height: 1.4;
}
/* Sale! item shares the black "tab" hover with the other nav items —
   the red pill badge stays red and now sits on the black tab. */
.ims-mega-menu-wrapper .mega-menu-item.sale-item .mega-menu-link:hover .sale-badge {
    background: #b91c1c;
}

/* "+ NEW" nav item — green pill badge that mirrors the corner chip
   rendered on listing / PDP cards (see .ims-product-card-vm-badge--new
   in assets/css/product-listing.css) so the colour + typography read
   as the same component across nav and product cards. */
.ims-mega-menu-wrapper .mega-menu-item.new-item .mega-menu-link {
    display: inline-flex;
    align-items: center;
}
.ims-mega-menu-wrapper .mega-menu-item.new-item .new-badge {
    display: inline-flex;
    align-items: center;
    background: #16A34A;
    color: #ffffff;
    padding: 0.28rem 0.55rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    line-height: 1;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}
.ims-mega-menu-wrapper .mega-menu-item.new-item .mega-menu-link:hover .new-badge {
    background: #15803D;
}

/* Hover affordance: underline the category name so it's clearly a link.
   Lighter/thinner than the default browser underline — uses the text colour
   at reduced opacity and underline-offset to breathe. Applies to every
   clickable category name (top-level heading + nested link rows). */
.ims-mega-menu-wrapper .category-group-heading a:hover,
.ims-mega-menu-wrapper .category-link:hover {
    text-decoration: underline;
    text-decoration-color: rgba(17, 17, 17, 0.35);
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

/* Hover hint: show "(N)" next to a category name when the term has products
   assigned directly to it (not counting descendants). Attribute is only
   rendered server-side when direct_count > 0, so the selector doubles as
   the conditional — no direct products = no attribute = no hint.

   Applies to both category-group headings (top-level parents in the grid)
   and category-link rows (children at every depth). */
.ims-mega-menu-wrapper .category-group-heading a[data-direct-label]:hover::after,
.ims-mega-menu-wrapper .category-link[data-direct-label]:hover::after {
    content: " (" attr(data-direct-label) ")";
    color: #888;
    font-weight: 400;
    margin-left: 0.25rem;
    /* Don't underline the "(N products)" hint itself — only the name. */
    text-decoration: none;
    display: inline-block;
}