/* =====================================================================
   navigation.css — Primary menu, mega panels & mobile drawer
   Owns everything below the topbar/brand level: nav links, the
   Products showcase mega menu, the compact Services panel and the
   mobile accordion drawer. Tokens come from variables.css.
   ===================================================================== */

:root {
    --mega-rail-w: 320px;
    /* Updated by navigation.js to the real header height (topbar + nav). */
    --header-offset: 112px;
}

/* ---------- Primary menu (desktop baseline) ---------- */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-5);
}

.nav-menu__entry {
    display: flex;
    align-items: center;
}

.nav-menu__link {
    position: relative;
    font-weight: var(--fw-medium);
    color: var(--text-base);
    padding-block: var(--space-2);
}

.nav-menu__link::after {
    content: "";
    position: absolute;
    inset-block-end: 0;
    inset-inline-start: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--dur-base) var(--ease-out);
}

.nav-menu__link:hover,
.nav-menu__link.is-active,
.nav-menu__item.is-open .nav-menu__link { color: var(--primary); }

.nav-menu__link:hover::after,
.nav-menu__link.is-active::after,
.nav-menu__item.is-open .nav-menu__link::after { width: 100%; }

/* Caret: the disclosure control for mega items (keyboard & touch) */
.nav-menu__caret {
    display: grid;
    place-items: center;
    width: 22px;
    height: 22px;
    margin-inline-start: 2px;
    color: var(--gray-500);
    border-radius: var(--radius-sm);
    transition: transform var(--dur-base) var(--ease-out), color var(--dur-fast);
}

.nav-menu__caret svg { width: 14px; height: 14px; }
.nav-menu__caret:hover { color: var(--primary); }
.nav-menu__item.is-open .nav-menu__caret { transform: rotate(180deg); color: var(--primary); }

.nav-menu__link:focus-visible,
.nav-menu__caret:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.nav-cta { flex-shrink: 0; }

/* Mobile menu toggle (hamburger) */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
}

.nav-toggle span {
    width: 26px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =====================================================================
   Mega panels — shared shell
   ===================================================================== */
.mega-panel {
    background: var(--dark);
    background-image: var(--blueprint);
    background-size: var(--blueprint-size);
    color: var(--text-on-dark);
}

.mega__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding-block-end: var(--space-4);
    border-block-end: 1px solid rgba(255, 255, 255, 0.08);
    margin-block-end: var(--space-5);
}

.mega__tagline {
    font-size: var(--fs-300);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--gray-400);
}

.mega__all {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--fs-300);
    font-weight: var(--fw-semibold);
    color: var(--primary-bright);
    white-space: nowrap;
}

.mega__all svg { width: 16px; height: 16px; transition: transform var(--dur-base) var(--ease-out); }
.mega__all:hover { color: var(--white); }
.mega__all:hover svg { transform: translateX(4px); }

/* =====================================================================
   Products mega — category rail + preview pane
   ===================================================================== */
.mega-cat__row { display: flex; align-items: center; }

.mega-cat__link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex: 1;
    padding: 9px var(--space-3);
    border-radius: var(--radius-sm);
    color: var(--gray-300);
    font-size: var(--fs-300);
    font-weight: var(--fw-medium);
    transition: background var(--dur-fast), color var(--dur-fast);
}

.mega-cat__num {
    font-size: 0.7rem;
    font-weight: var(--fw-bold);
    letter-spacing: 0.08em;
    color: var(--gray-500);
    min-width: 20px;
    transition: color var(--dur-fast);
}

.mega-cat__name { flex: 1; }

.mega-cat__chev {
    width: 14px;
    height: 14px;
    opacity: 0;
    transform: translateX(-6px);
    transition: opacity var(--dur-fast), transform var(--dur-base) var(--ease-out);
}

.mega-cat__link:hover,
.mega-cat.is-active .mega-cat__link {
    background: rgba(255, 255, 255, 0.05);
    color: var(--white);
}

.mega-cat.is-active .mega-cat__num { color: var(--primary-bright); }

.mega-cat.is-active .mega-cat__chev,
.mega-cat__link:hover .mega-cat__chev {
    opacity: 1;
    transform: translateX(0);
}

.mega-cat__link:focus-visible {
    outline: 2px solid var(--primary-bright);
    outline-offset: -2px;
}

/* Second-level accordion toggle — mobile only (min 48px touch target) */
.mega-cat__toggle {
    display: none;
    place-items: center;
    width: 48px;
    height: 48px;
    color: var(--gray-500);
    transition: transform var(--dur-base) var(--ease-out), color var(--dur-fast);
}

.mega-cat__toggle svg { width: 16px; height: 16px; }
.mega-cat.is-open > .mega-cat__row .mega-cat__toggle { transform: rotate(180deg); color: var(--primary-bright); }
.mega-cat__toggle:focus-visible { outline: 2px solid var(--primary-bright); outline-offset: -2px; }

/* ---- Preview pane content ---- */
.mega-pane__inner {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-6);
    align-items: start;
    height: 100%;
}

.mega-pane__title {
    font-size: var(--fs-600);
    font-weight: var(--fw-bold);
    color: var(--white);
    margin-block-end: var(--space-2);
}

.mega-pane__desc {
    font-size: var(--fs-300);
    color: var(--gray-400);
    max-width: 46ch;
    margin-block-end: var(--space-5);
}

.mega-pane__label {
    display: block;
    font-size: 0.7rem;
    font-weight: var(--fw-semibold);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--gray-500);
    margin-block-end: var(--space-3);
}

/* Featured subcategories as badge chips */
.mega-pane__chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-block-end: var(--space-6);
}

.mega-chip {
    display: inline-flex;
    align-items: center;
    padding: 7px 16px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.03);
    font-size: var(--fs-300);
    font-weight: var(--fw-medium);
    color: var(--gray-300);
    transition: color var(--dur-fast), border-color var(--dur-fast),
                background var(--dur-fast), transform var(--dur-base) var(--ease-out);
}

.mega-chip:hover {
    color: var(--white);
    border-color: var(--primary-bright);
    background: rgba(0, 91, 170, 0.35);
    transform: translateY(-2px);
}

.mega-chip:focus-visible { outline: 2px solid var(--primary-bright); outline-offset: 2px; }

/* Category footer: model counter + per-category CTA */
.mega-pane__footer {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    flex-wrap: wrap;
}

.mega-pane__count {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
    padding-inline-end: var(--space-5);
    border-inline-end: 1px solid rgba(255, 255, 255, 0.1);
}

.mega-pane__count-num {
    font-size: var(--fs-600);
    font-weight: var(--fw-black);
    color: var(--primary-bright);
}

.mega-pane__count-label {
    font-size: 0.7rem;
    font-weight: var(--fw-semibold);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--gray-500);
}

.mega-pane__cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    background: var(--primary);
    color: var(--white);
    font-size: var(--fs-300);
    font-weight: var(--fw-semibold);
    transition: background var(--dur-fast), transform var(--dur-base) var(--ease-out);
}

.mega-pane__cta svg { width: 15px; height: 15px; }
.mega-pane__cta:hover { background: var(--primary-dark); color: var(--white); transform: translateY(-2px); }
.mega-pane__cta:focus-visible { outline: 2px solid var(--primary-bright); outline-offset: 2px; }

/* ---- Placeholder visual (photo-ready via data-img, like homepage cards) ---- */
.mega-pane__media {
    position: relative;
    aspect-ratio: 4 / 3;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    background-image: var(--blueprint), var(--placeholder-dark);
    background-size: var(--blueprint-size), cover;
    overflow: hidden;
    display: grid;
    place-items: center;
}

.mega-pane__silhouette {
    width: 46%;
    height: 46%;
    color: rgba(255, 255, 255, 0.22);
}

.mega-pane__corner {
    position: absolute;
    width: 22px;
    height: 22px;
    border-color: var(--primary-bright);
    border-style: solid;
    opacity: 0.85;
}

.mega-pane__corner--tl { inset-block-start: 10px; inset-inline-start: 10px; border-width: 2px 0 0 2px; }
.mega-pane__corner--br { inset-block-end: 10px; inset-inline-end: 10px; border-width: 0 2px 2px 0; }

.mega-pane__num {
    position: absolute;
    inset-block-end: 2px;
    inset-inline-end: 12px;
    font-size: 3rem;
    font-weight: var(--fw-black);
    line-height: 1;
    color: rgba(255, 255, 255, 0.08);
    pointer-events: none;
}

/* Real-photo hooks (opt-in to avoid 404s).
   The blueprint + dark placeholder below is the default look for every
   category pane. To upgrade one pane to a real photo: drop the file at
   assets/images/category-{slug}.jpg AND add a `has-photo` class hook, e.g.
       .mega-pane__media[data-img="category-tankers.jpg"].has-photo {
           background-image: url('../images/category-tankers.jpg'), var(--blueprint), var(--placeholder-dark);
           background-size: cover, var(--blueprint-size), cover; background-position: center;
       }
   Because the images are no longer referenced unconditionally, the browser
   never requests missing files, so the console stays clean. */
.mega-pane__media[data-img^="category-"] {
    background-image: var(--blueprint), var(--placeholder-dark);
    background-size: var(--blueprint-size), cover;
    background-position: center;
}

/* ---- Featured-chip preview (navigation.js → .mega-preview) ----
   Chip hover'ında medya kutusu ürün önizlemesine geçer: görsel katmanı
   crossfade + hafif zoom + alttan clip-reveal ile gelir, ürün adı
   plakası gecikmeli yükselir; siluet ve numara geri çekilir. Foto yoksa
   yalnızca isim plakası animasyonu çalışır (yer tutucu görünür kalır). */
.mega-preview {
    position: absolute;
    inset: 0;
    z-index: 1;
    opacity: 0;
    pointer-events: none;
    transition: opacity 320ms var(--ease-out, ease);
}

.mega-pane__media.is-preview .mega-preview { opacity: 1; }

.mega-preview__img {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transform: scale(1.08);
    clip-path: inset(100% 0 0 0);
}

.mega-preview.is-swap .mega-preview__img {
    animation: mega-preview-reveal 560ms cubic-bezier(0.22, 1, 0.32, 1) forwards;
}

@keyframes mega-preview-reveal {
    from { opacity: 0; transform: scale(1.08); clip-path: inset(100% 0 0 0); }
    60%  { opacity: 1; }
    to   { opacity: 1; transform: scale(1); clip-path: inset(0 0 0 0); }
}

.mega-preview__name {
    position: absolute;
    inset-block-end: 12px;
    inset-inline-start: 12px;
    max-width: calc(100% - 24px);
    padding: 0.4rem 0.7rem;
    border-inline-start: 2px solid var(--primary-bright, #4AA3E6);
    border-radius: 6px;
    background: rgba(7, 13, 23, 0.72);
    backdrop-filter: blur(6px);
    color: #eef4fc;
    font-size: 0.78rem;
    font-weight: 600;
    line-height: 1.3;
    opacity: 0;
    transform: translateY(10px);
}

.mega-preview.is-swap .mega-preview__name {
    animation: mega-preview-name 420ms cubic-bezier(0.22, 1, 0.32, 1) 140ms forwards;
}

@keyframes mega-preview-name {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: none; }
}

/* Önizleme açıkken kategori siluetini ve numarayı geri çek. */
.mega-pane__silhouette,
.mega-pane__num {
    transition: opacity 280ms ease, transform 280ms ease;
}

.mega-pane__media.is-preview .mega-pane__silhouette { opacity: 0; transform: scale(0.85); }
.mega-pane__media.is-preview .mega-pane__num { opacity: 0.25; }

@media (prefers-reduced-motion: reduce) {
    .mega-preview { transition: none; }
    .mega-preview.is-swap .mega-preview__img,
    .mega-preview.is-swap .mega-preview__name { animation: none; opacity: 1; transform: none; clip-path: inset(0 0 0 0); }
}

/* =====================================================================
   Services mini mega
   ===================================================================== */
.mega-srv__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-1) var(--space-5);
}

.mega-srv {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-sm);
    transition: background var(--dur-fast);
}

.mega-srv__icon {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    flex-shrink: 0;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-sm);
    color: var(--primary-bright);
    transition: border-color var(--dur-fast), color var(--dur-fast);
}

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

.mega-srv__body { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.mega-srv__name { font-size: var(--fs-300); font-weight: var(--fw-semibold); color: var(--gray-200, #e2e8f0); transition: color var(--dur-fast); }
.mega-srv__desc { font-size: 0.78rem; color: var(--gray-500); }

.mega-srv:hover { background: rgba(255, 255, 255, 0.05); }
.mega-srv:hover .mega-srv__name { color: var(--white); }
.mega-srv:hover .mega-srv__icon { border-color: var(--primary-bright); }
.mega-srv:focus-visible { outline: 2px solid var(--primary-bright); outline-offset: -2px; }

.mega-srv__cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-block-start: var(--space-5);
    padding-block-start: var(--space-5);
    border-block-start: 1px solid rgba(255, 255, 255, 0.08);
}

.mega-srv__cta-text { display: flex; flex-direction: column; gap: 2px; }
.mega-srv__cta-text strong { color: var(--white); font-size: var(--fs-400); }
.mega-srv__cta-text span { color: var(--gray-400); font-size: var(--fs-300); }

.mega-srv__cta-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    background: var(--accent);
    color: var(--white);
    font-size: var(--fs-300);
    font-weight: var(--fw-semibold);
    transition: background var(--dur-fast), transform var(--dur-base) var(--ease-out);
}

.mega-srv__cta-btn svg { width: 15px; height: 15px; }
.mega-srv__cta-btn:hover { background: var(--accent-dark); color: var(--white); transform: translateY(-2px); }
.mega-srv__cta-btn:focus-visible { outline: 2px solid var(--white); outline-offset: 2px; }

/* =====================================================================
   Desktop flyout behaviour (≥992px)
   ===================================================================== */
@media (min-width: 992px) {
    .mega-panel {
        position: absolute;
        inset-block-start: 100%;
        inset-inline: 0;
        z-index: var(--z-dropdown);
        border-block-start: 1px solid rgba(255, 255, 255, 0.06);
        box-shadow: var(--shadow-lg);
        max-height: calc(100vh - var(--header-offset) - 12px);
        overflow-y: auto;
        opacity: 0;
        visibility: hidden;
        transform: translateY(10px);
        pointer-events: none;
        transition: opacity var(--dur-base) var(--ease-out),
                    transform var(--dur-base) var(--ease-out),
                    visibility var(--dur-base);
    }

    /* Engineering accent line along the top edge */
    .mega-panel::before {
        content: "";
        position: absolute;
        inset-block-start: 0;
        inset-inline-start: 0;
        width: 100%;
        height: 2px;
        background: linear-gradient(90deg, var(--primary), var(--primary-bright) 35%, transparent 75%);
    }

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

    .mega {
        max-width: var(--container-max);
        margin-inline: auto;
        padding: var(--space-6) var(--container-pad) var(--space-7);
    }

    /* Compact services panel: anchored under the header, centered box */
    .mega-panel--compact {
        inset-inline: auto;
        left: 50%;
        width: min(820px, calc(100vw - 2 * var(--container-pad)));
        border: 1px solid rgba(255, 255, 255, 0.06);
        border-block-start: none;
        border-end-start-radius: var(--radius-md);
        border-end-end-radius: var(--radius-md);
        transform: translateX(-50%) translateY(10px);
    }

    .nav-menu__item.is-open > .mega-panel--compact { transform: translateX(-50%) translateY(0); }

    .mega--services { padding: var(--space-5) var(--space-6) var(--space-6); }

    /* ---- Products: rail on the inline-start, pane floats beside it ---- */
    .mega__body { position: relative; }

    .mega__body::before {
        content: "";
        position: absolute;
        inset-block: 0;
        inset-inline-start: calc(var(--mega-rail-w) + var(--space-5));
        width: 1px;
        background: rgba(255, 255, 255, 0.07);
    }

    .mega-cat { width: var(--mega-rail-w); }

    .mega-cat__pane {
        position: absolute;
        inset-block: 0;
        inset-inline-start: calc(var(--mega-rail-w) + var(--space-7));
        inset-inline-end: 0;
        opacity: 0;
        visibility: hidden;
        transform: translateX(8px);
        transition: opacity var(--dur-base) var(--ease-out),
                    transform var(--dur-base) var(--ease-out),
                    visibility var(--dur-base);
    }

    .mega-cat.is-active > .mega-cat__pane {
        opacity: 1;
        visibility: visible;
        transform: translateX(0);
    }
}

/* =====================================================================
   Mobile drawer & accordions (<992px)
   ===================================================================== */

/* Teklif Al CTA: masaüstünde yatay nav'da ayrı .nav-cta gösterilir; drawer
   içindeki kopya yalnızca mobilde görünür (aşağıdaki @media'da açılır). */
.nav-menu__cta-item { display: none; }

/* Mobil ürün/hizmet bağlantı listesi (sade <ul>) — masaüstünde gizli. */
.mega-mlist { display: none; list-style: none; margin: 0; padding: 0; }
.mega-mlist__link {
    display: flex;
    align-items: center;
    min-height: 48px; /* eldivenli şoför standardı */
    padding: 0.72rem 0.25rem;
    color: var(--white);
    font-size: var(--fs-400);
    text-decoration: none;
    border-block-end: 1px solid rgba(255, 255, 255, 0.07);
}
.mega-mlist__link:hover { color: var(--primary-bright); }
.mega-mlist__link--all { color: var(--primary-bright); font-weight: 600; }

/* Mobilde öne çıkan ürün çipleri: ürün detayına 3 dokunuşta ulaşım */
.mega-mlist__feat {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.2rem 0.25rem 0.75rem;
    border-block-end: 1px solid rgba(255, 255, 255, 0.07);
}
.mega-mlist__feat-link {
    display: inline-flex;
    align-items: center;
    min-height: 48px;
    padding: 0.45rem 0.85rem;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 999px;
    color: rgba(255, 255, 255, 0.78);
    font-size: var(--fs-300, 0.85rem);
    text-decoration: none;
}
.mega-mlist__feat-link:hover {
    color: var(--white);
    border-color: var(--primary-bright);
}

/* Skip-to-content — yalnız klavye odağında görünür (WCAG) */
.skip-link {
    position: fixed;
    inset-block-start: 0.6rem;
    inset-inline-start: 0.6rem;
    z-index: 2000;
    display: inline-flex;
    align-items: center;
    min-height: 48px;
    padding: 0.7rem 1.2rem;
    border-radius: 10px;
    background: var(--primary, #005baa);
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    transform: translateY(-250%);
}
.skip-link:focus-visible {
    transform: none;
    outline: 2px solid #fff;
    outline-offset: 2px;
}

@media (max-width: 991px) {
    .nav-toggle { display: flex; }

    /* Ürünler/Hizmetler mobilde: başlığın yanındaki oka dokununca sade bir
       bağlantı listesi (mega-mlist) açılır. Karmaşık masaüstü mega içeriği
       (kartlar/çipler/görseller) gizlenir — kutu gelmez. */
    .mega-mlist { display: block; }
    .mega-panel .mega__head,
    .mega-panel .mega__body,
    .mega-srv__grid,
    .mega-srv__cta { display: none; }

    /* Düzeltme: panelin koyu "blueprint" (milimetrik kâğıt) zemini, akordeon
       kapalıyken ince bir şerit halinde sızıp boş kutu gibi görünüyordu.
       Mobilde bu deseni kaldır ve panel KAPALIYKEN tamamen gizle; yalnızca
       oka dokununca (.is-open) sade bağlantı listesi açılır. */
    .mega-panel { background-image: none; }
    .nav-menu__item:not(.is-open) > .mega-panel { display: none; }

    /* Set by navigation.js while the drawer is open */
    html.nav-locked { overflow: hidden; }

    .nav-menu {
        position: fixed;
        inset-block-start: var(--header-offset);
        inset-block-end: 0;
        inset-inline: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: var(--white);
        padding: var(--space-3) var(--container-pad) var(--space-8);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        transform: translateY(-12px);
        opacity: 0;
        visibility: hidden;
        transition: opacity var(--dur-base) var(--ease-out),
                    transform var(--dur-base) var(--ease-out),
                    visibility var(--dur-base);
    }

    .nav-menu.is-open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu__item { border-block-end: 1px solid var(--border-color); }
    .nav-menu__link { flex: 1; display: block; padding-block: var(--space-4); }
    .nav-menu__link::after { display: none; }

    .nav-menu__caret {
        width: 48px;
        height: 48px;
        margin-inline-start: 0;
        color: var(--gray-500);
    }

    .nav-menu__caret svg { width: 18px; height: 18px; }

    .nav-cta { display: none; }
    /* Teklif Al drawer'ın içinde tam genişlik, erişilebilir CTA */
    .nav-menu__cta-item { display: block; border-block-end: 0; padding-block-start: var(--space-5); }
    .nav-menu__cta { width: 100%; justify-content: center; min-height: 48px; }
    .topbar__link--hide-sm { display: none; }

    /* ---- First-level accordion: the mega panel collapses below its row ---- */
    .mega-panel {
        display: grid;
        grid-template-rows: 0fr;
        border-radius: var(--radius-md);
        transition: grid-template-rows var(--dur-base) var(--ease-out),
                    margin var(--dur-base) var(--ease-out);
    }

    .mega-panel > .mega { overflow: hidden; min-height: 0; }
    .nav-menu__item.is-open > .mega-panel { grid-template-rows: 1fr; margin-block-end: var(--space-4); }

    .mega { padding: var(--space-4); }

    .mega__head { margin-block-end: var(--space-3); padding-block-end: var(--space-3); }
    .mega__tagline { display: none; }

    /* ---- Second-level accordion: category panes ---- */
    .mega-cat__toggle { display: grid; }
    .mega-cat__chev { display: none; }
    .mega-cat + .mega-cat { border-block-start: 1px solid rgba(255, 255, 255, 0.06); }

    .mega-cat__link { padding-block: var(--space-3); font-size: var(--fs-400); }

    .mega-cat__pane {
        display: grid;
        grid-template-rows: 0fr;
        transition: grid-template-rows var(--dur-base) var(--ease-out);
    }

    .mega-cat__pane > .mega-pane__inner { overflow: hidden; min-height: 0; }
    .mega-cat.is-open > .mega-cat__pane { grid-template-rows: 1fr; }

    .mega-pane__inner {
        display: block;
        padding: var(--space-2) var(--space-3) var(--space-4) calc(20px + var(--space-3) + var(--space-3));
    }

    /* Row already names the category; keep the pane lean on mobile */
    .mega-pane__title,
    .mega-pane__media { display: none; }

    .mega-pane__desc { margin-block-end: var(--space-3); }
    .mega-pane__chips { margin-block-end: var(--space-4); }
    .mega-chip { padding-block: 9px; }
    .mega-pane__footer { gap: var(--space-4); }

    /* ---- Services panel on mobile ---- */
    .mega-srv__grid { grid-template-columns: 1fr; gap: var(--space-1); }
    .mega-srv { padding-block: var(--space-2); }
    .mega-srv__cta { flex-direction: column; align-items: stretch; text-align: center; }
    .mega-srv__cta-btn { justify-content: center; min-height: 48px; }
}

/* =====================================================================
   RTL — flip directional arrows/chevrons & slide directions
   ===================================================================== */
[dir="rtl"] .mega__all svg,
[dir="rtl"] .mega-pane__cta svg,
[dir="rtl"] .mega-srv__cta-btn svg { transform: scaleX(-1); }

[dir="rtl"] .mega-cat__chev { transform: scaleX(-1) translateX(6px); }

[dir="rtl"] .mega-cat.is-active .mega-cat__chev,
[dir="rtl"] .mega-cat__link:hover .mega-cat__chev { transform: scaleX(-1) translateX(0); }

[dir="rtl"] .mega__all:hover svg { transform: scaleX(-1) translateX(4px); }
[dir="rtl"] .mega-cat.is-active > .mega-cat__pane { transform: translateX(0); }

@media (min-width: 992px) {
    [dir="rtl"] .mega-cat__pane { transform: translateX(-8px); }
    [dir="rtl"] .mega-panel::before { background: linear-gradient(270deg, var(--primary), var(--primary-bright) 35%, transparent 75%); }
}

/* =====================================================================
   Reduced motion
   ===================================================================== */
@media (prefers-reduced-motion: reduce) {
    .nav-menu,
    .mega-panel,
    .mega-cat__pane,
    .mega-cat__chev,
    .mega-cat__toggle,
    .nav-menu__caret,
    .mega__all svg,
    .mega-chip,
    .mega-pane__cta,
    .mega-srv__cta-btn { transition: none; }
}