/* =============================================================================
   GMM Pfaudler–style Enterprise Mega Menu
   Navy header #012B5B · White dropdown · 4-column dynamic navigation
   ============================================================================= */

:root {
    --header-navy: #1A3668;
    --header-navy-dark: #142a52;
    --mega-white: #ffffff;
    --mega-surface: #f3f1f8;
    --mega-sub-bg: #ffffff;
    --mega-border: #ddd8e8;
    --mega-border-soft: #ebe8f2;
    --mega-text: #1a1a2e;
    --mega-text-muted: #6b6b80;
    --mega-text-light: #94a3b8;
    --mega-navy: #1A3668;
    --mega-orange: #EA580C;
    --mega-accent: #1A3668;
    --mega-accent-hover: #142a52;
    --mega-highlight: #f3f1f8;
    --mega-radius: 12px;
    --mega-shadow: 0 20px 50px rgba(26, 54, 104, 0.14), 0 8px 20px rgba(15, 23, 42, 0.08);
    --mega-ease: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    --mega-font: 'Inter', 'Plus Jakarta Sans', system-ui, sans-serif;
    --mega-dialog-w: min(1400px, 90vw);
    --mega-panel-h: min(520px, 72vh);
}

/* —— Corporate navy header —— */
.main-header.main-header--corporate {
    background: var(--header-navy);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

.main-header.main-header--corporate .logo__name {
    color: #fff;
}

.main-header.main-header--corporate .logo__tagline {
    color: rgba(255, 255, 255, 0.65);
}

.main-header.main-header--corporate .logo__icon {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: none;
    box-shadow: none;
}

.main-header.main-header--corporate .main-nav__trigger {
    color: rgba(255, 255, 255, 0.82);
}

.main-header.main-header--corporate .main-nav__trigger:hover,
.main-header.main-header--corporate .main-nav__item--has-mega.is-open .main-nav__trigger {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.main-header.main-header--corporate .main-nav__item--has-mega.is-open .main-nav__trigger,
.main-header.main-header--corporate .main-nav__trigger--active {
    background: #fff;
    color: var(--header-navy);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.main-header.main-header--corporate .nav-toggle {
    background: rgba(255, 255, 255, 0.1);
}

.main-header.main-header--corporate .nav-toggle__bar {
    background: #fff;
}

.main-header.main-header--corporate.main-header--scrolled {
    background: var(--header-navy);
    box-shadow: 0 4px 24px rgba(1, 29, 63, 0.35);
}

.main-header.main-header--corporate.main-header--mega-open {
    box-shadow: 0 4px 24px rgba(1, 29, 63, 0.35);
}

/* —— Nav trigger —— */
.main-nav__item--has-mega {
    position: static;
}

.main-nav__trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    font-family: var(--mega-font);
    font-weight: 600;
    font-size: 0.9rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    background: transparent;
    transition: color var(--mega-ease), background var(--mega-ease);
}

.main-nav__trigger-chevron {
    transition: transform var(--mega-ease);
    opacity: 0.75;
}

.main-nav__item--has-mega.is-open .main-nav__trigger-chevron {
    transform: rotate(180deg);
}

/* —— Mega menu shell —— */
.mega-menu {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 998;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.26s ease, transform 0.26s ease, visibility 0.26s;
    font-family: var(--mega-font);
}

.mega-menu.is-open {
    pointer-events: auto;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.mega-menu[hidden]:not(.is-open) {
    display: block !important;
}

.mega-menu__backdrop {
    position: fixed;
    inset: 0;
    top: calc(var(--sticky-height) + var(--header-height));
    background: rgba(15, 23, 42, 0.28);
    backdrop-filter: blur(3px);
    opacity: 0;
    transition: opacity 0.26s ease;
}

.mega-menu.is-open .mega-menu__backdrop {
    opacity: 1;
}

.mega-menu__stage {
    display: flex;
    justify-content: center;
    padding: 1rem clamp(1rem, 5vw, 2.5rem) 1.5rem;
    background: transparent;
}

.mega-menu__dialog {
    width: var(--mega-dialog-w);
    max-width: 100%;
    background: var(--mega-white);
    border-radius: var(--mega-radius);
    box-shadow: var(--mega-shadow);
    border: 1px solid var(--mega-border);
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.mega-menu__dialog::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--mega-navy), #2d6a9f, var(--mega-orange));
}

.mega-menu__grid {
    display: grid;
    grid-template-columns: 28% 34% 38%;
    min-height: 380px;
    max-height: var(--mega-panel-h);
}

.mega-menu__grid--no-subs {
    grid-template-columns: 32% 68%;
}

.mega-menu__grid--no-subs .mega-menu__col--subs {
    display: none;
}

.mega-menu__heading {
    font-size: 0.625rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--mega-navy);
    margin: 0 0 0.85rem;
    padding-bottom: 0;
    border-bottom: none;
}

.mega-menu__heading--cat,
.mega-menu__heading--sub {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mega-menu__heading--cat::after,
.mega-menu__heading--sub::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--mega-border);
}

.mega-menu__heading--sub {
    color: var(--mega-orange);
}

.mega-menu__heading--sub::after {
    background: linear-gradient(90deg, rgba(234, 88, 12, 0.35), transparent);
}

.mega-menu__heading--products {
    color: var(--mega-navy);
}

.mega-menu__heading-meta {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0;
    text-transform: none;
    color: var(--mega-text-muted);
    margin-top: 0.2rem;
}

.mega-menu__item-text {
    flex: 1;
    min-width: 0;
}

/* Right chevron arrow (no left icons) */
.mega-menu__arrow {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.25rem;
    color: var(--mega-text-light);
    opacity: 0.5;
    transition: opacity var(--mega-ease), transform var(--mega-ease), color var(--mega-ease);
}

.mega-menu__arrow::before {
    content: '';
    display: block;
    width: 7px;
    height: 7px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(-45deg);
}

.mega-menu__arrow--forward::before {
    width: auto;
    height: auto;
    border: none;
    transform: none;
    content: '→';
    font-size: 1rem;
    font-weight: 600;
    line-height: 1;
}

.mega-menu__arrow--circle {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    position: relative;
    opacity: 0;
    transition: opacity var(--mega-ease), background var(--mega-ease);
}

.mega-menu__arrow--circle::before {
    content: '›';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: auto;
    height: auto;
    border: none;
    transform: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    line-height: 1;
}

.mega-menu__item-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--mega-surface);
    color: var(--mega-navy);
    transition: background var(--mega-ease), color var(--mega-ease);
}

.mega-menu__item-icon svg {
    width: 18px;
    height: 18px;
}

.mega-menu__item-icon--sub {
    width: 30px;
    height: 30px;
    border-radius: 0;
    background: transparent;
    color: var(--mega-orange);
    opacity: 0.75;
}

.mega-menu__item-icon--sub svg {
    width: 16px;
    height: 16px;
}

/* —— Column 1: Categories —— */
.mega-menu__col--categories {
    background: var(--mega-white);
    padding: 1.5rem 1.1rem 1.5rem 1.35rem;
    border-right: 1px solid var(--mega-border);
    overflow-y: auto;
}

.mega-menu__col--categories .mega-menu__item-icon,
.mega-menu__col--categories .mega-menu__arrow--circle,
.mega-menu__col--subs .mega-menu__item-icon,
.mega-menu__col--subs .mega-menu__arrow--circle,
.mega-menu-mobile__cat-toggle .mega-menu__item-icon,
.mega-menu-mobile__cat-toggle .mega-menu__arrow--circle,
.mega-menu-mobile__sub-toggle .mega-menu__item-icon,
.mega-menu-mobile__sub-toggle .mega-menu__arrow--circle {
    display: none !important;
}

.mega-menu__category {
    display: flex;
    align-items: center;
    gap: 0;
    width: 100%;
    padding: 0.8rem 0.85rem;
    margin-bottom: 0.3rem;
    text-align: left;
    font-family: var(--mega-font);
    font-size: 0.8125rem;
    font-weight: 600;
    line-height: 1.35;
    color: var(--mega-text-muted);
    background: transparent;
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    transition: color var(--mega-ease), background var(--mega-ease), border-color var(--mega-ease), box-shadow var(--mega-ease);
}

.mega-menu__category:hover {
    color: var(--mega-navy);
    background: var(--mega-surface);
}

.mega-menu__category.is-active {
    color: var(--mega-navy);
    background: var(--mega-surface);
    border-color: var(--mega-navy);
    box-shadow: 0 4px 16px rgba(26, 54, 104, 0.08);
}

.mega-menu__category.is-active .mega-menu__item-icon {
    background: var(--mega-navy);
    color: #fff;
}

.mega-menu__category.is-active .mega-menu__arrow--circle {
    opacity: 1;
    background: var(--mega-navy);
}

.mega-menu__catalog-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.45rem;
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--mega-border);
    width: 100%;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--mega-navy);
    transition: gap var(--mega-ease), color var(--mega-ease);
}

.mega-menu__catalog-link:hover {
    color: var(--mega-orange);
}

.mega-menu__catalog-link .mega-menu__arrow {
    opacity: 1;
    color: var(--mega-navy);
}

.mega-menu__catalog-link:hover .mega-menu__arrow {
    color: var(--mega-orange);
}

/* —— Column 2: Subcategories —— */
.mega-menu__col--subs {
    background: var(--mega-sub-bg);
    padding: 1.5rem 1.15rem;
    border-right: 1px solid var(--mega-border);
    overflow-y: auto;
    position: relative;
}

.mega-menu__sub-panel {
    display: none;
}

.mega-menu__sub-panel.is-active {
    display: block;
    animation: megaSlideIn 0.22s ease forwards;
}

@keyframes megaSlideIn {
    from { opacity: 0; transform: translateX(-8px); }
    to   { opacity: 1; transform: translateX(0); }
}

.mega-menu__subcategory {
    display: flex;
    align-items: center;
    gap: 0;
    width: 100%;
    padding: 0.7rem 0.75rem;
    margin-bottom: 0.35rem;
    text-align: left;
    font-family: var(--mega-font);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--mega-navy);
    background: var(--mega-white);
    border: 1px solid rgba(15, 23, 42, 0.06);
    border-left: 3px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: background var(--mega-ease), border-color var(--mega-ease), box-shadow var(--mega-ease);
}

.mega-menu__subcategory:hover {
    background: var(--mega-white);
    border-color: rgba(234, 88, 12, 0.25);
    border-left-color: rgba(234, 88, 12, 0.4);
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
}

.mega-menu__subcategory.is-active {
    background: var(--mega-white);
    border-color: rgba(234, 88, 12, 0.2);
    border-left-color: var(--mega-orange);
    box-shadow: 0 4px 14px rgba(234, 88, 12, 0.1);
}

.mega-menu__subcategory.is-active .mega-menu__item-icon--sub {
    opacity: 1;
}

.mega-menu__subcategory.is-active .mega-menu__arrow--circle {
    opacity: 1;
    background: var(--mega-orange);
}

/* —— Column 3: Products —— */
.mega-menu__col--products {
    padding: 1.5rem 1.15rem;
    border-right: 1px solid var(--mega-border);
    overflow-y: auto;
}

.mega-menu__products-panel {
    display: none;
}

.mega-menu__products-panel.is-active {
    display: block;
    animation: megaSlideIn 0.22s ease forwards;
}

.mega-menu__product-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.52rem 0.7rem;
    margin: 0 -0.35rem;
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--mega-text-muted);
    border-left: 2px solid transparent;
    transition: color var(--mega-ease), background var(--mega-ease), border-color var(--mega-ease);
}

.mega-menu__product-link:hover,
.mega-menu__product-link.is-active,
.mega-menu__product-link:focus-visible {
    color: #e85d04;
    background: rgba(232, 93, 4, 0.08);
    border-left-color: #e85d04;
    outline: none;
}

.mega-menu__product-link:hover .mega-menu__arrow,
.mega-menu__product-link.is-active .mega-menu__arrow,
.mega-menu__product-link:focus-visible .mega-menu__arrow {
    opacity: 1;
    color: #e85d04;
    transform: translateX(2px);
}

/* Scrollbars */
.mega-menu__col {
    scrollbar-width: thin;
    scrollbar-color: #cbd5e1 transparent;
}

.mega-menu__col::-webkit-scrollbar {
    width: 5px;
}

.mega-menu__col::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

body.mega-menu-open {
    overflow: hidden;
}

@media (min-width: 992px) {
    body.mega-menu-open {
        overflow: auto;
    }
}

/* Tablet */
@media (max-width: 1199.98px) {
    .mega-menu__grid {
        grid-template-columns: 30% 32% 38%;
    }

    .mega-menu__grid--no-subs {
        grid-template-columns: 34% 66%;
    }
}

@media (max-width: 991.98px) {
    .mega-menu {
        display: none !important;
    }

    .main-nav__trigger {
        width: 100%;
        justify-content: space-between;
        padding: 0.85rem 1rem;
        font-size: 1rem;
        border-radius: 8px;
    }
}

/* —— Mobile accordion —— */
.mega-menu-mobile {
    display: none;
    width: 100%;
}

@media (max-width: 991.98px) {
    .mega-menu-mobile.is-visible {
        display: block;
    }
}

.mega-menu-mobile__inner {
    font-family: var(--mega-font);
    background: var(--mega-white);
    border: 1px solid var(--mega-border);
    border-radius: var(--mega-radius);
    box-shadow: var(--mega-shadow);
    padding: 0.35rem;
    margin: 0.35rem 0 0.75rem;
    max-height: 58vh;
    overflow-y: auto;
}

.mega-menu-mobile__group {
    border-bottom: 1px solid var(--mega-border-soft);
}

.mega-menu-mobile__cat-toggle,
.mega-menu-mobile__sub-toggle {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    width: 100%;
    padding: 0.8rem 0.7rem;
    font-family: var(--mega-font);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--mega-text-muted);
    background: transparent;
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    text-align: left;
    transition: color var(--mega-ease), background var(--mega-ease), border-color var(--mega-ease);
}

.mega-menu-mobile__cat-toggle .mega-menu__item-text,
.mega-menu-mobile__sub-toggle .mega-menu__item-text {
    flex: 1;
}

.mega-menu-mobile__cat-toggle:hover {
    color: var(--mega-navy);
    background: var(--mega-surface);
}

.mega-menu-mobile__cat-toggle[aria-expanded="true"] {
    background: var(--mega-surface);
    color: var(--mega-navy);
    border-color: var(--mega-navy);
}

.mega-menu-mobile__cat-toggle[aria-expanded="true"] .mega-menu__item-icon {
    background: var(--mega-navy);
    color: #fff;
}

.mega-menu-mobile__cat-toggle[aria-expanded="true"] .mega-menu__arrow--circle {
    opacity: 1;
    background: var(--mega-navy);
    transform: rotate(90deg);
}

.mega-menu-mobile__sub-toggle {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--mega-navy);
    background: var(--mega-white);
    border: 1px solid rgba(15, 23, 42, 0.06);
    border-left: 3px solid transparent;
}

.mega-menu-mobile__sub-toggle:hover {
    background: var(--mega-white);
    border-color: rgba(234, 88, 12, 0.25);
    border-left-color: rgba(234, 88, 12, 0.4);
}

.mega-menu-mobile__sub-toggle[aria-expanded="true"] {
    background: var(--mega-white);
    border-color: rgba(234, 88, 12, 0.2);
    border-left-color: var(--mega-orange);
    color: var(--mega-navy);
}

.mega-menu-mobile__sub-toggle[aria-expanded="true"] .mega-menu__item-icon--sub {
    opacity: 1;
}

.mega-menu-mobile__sub-toggle[aria-expanded="true"] .mega-menu__arrow--circle {
    opacity: 1;
    background: var(--mega-orange);
    transform: rotate(90deg);
}

.mega-menu-mobile__content {
    padding: 0 0.5rem 0.65rem 1.5rem;
}

.mega-menu-mobile__products a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.45rem 0.55rem;
    font-size: 0.8125rem;
    color: var(--mega-text-muted);
    border-radius: 6px;
}

.mega-menu-mobile__products a:hover {
    color: #e85d04;
    background: rgba(232, 93, 4, 0.08);
    border-left: 2px solid #e85d04;
}

.mega-menu-mobile__products a:hover .mega-menu__arrow {
    opacity: 1;
    color: #e85d04;
}

.mega-menu-mobile__all {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.9rem;
    font-weight: 700;
    font-size: 0.8125rem;
    color: var(--mega-navy);
    border-top: 1px solid var(--mega-border);
}

.mega-menu-mobile__all:hover {
    color: var(--mega-orange);
}

.mega-menu-mobile__all .mega-menu__arrow {
    opacity: 1;
    color: var(--mega-navy);
}

.mega-menu-mobile__all:hover .mega-menu__arrow {
    color: var(--mega-orange);
}

.main-header {
    position: fixed;
}