/* ==========================================================================
   Layout: utility bar, site header, primary nav (mobile drawer), footer.
   ========================================================================== */

/* ---- Utility bar --------------------------------------------------------- */
.utility-bar {
  background: var(--bg-deep);
  color: var(--text-inverse-muted);
  font-size: var(--fs-xs);
}
.utility-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-block-size: 40px;
}
.utility-bar__note { margin: 0; display: flex; align-items: center; gap: var(--space-2); }
.utility-bar__note .icon { color: var(--color-white); inline-size: 1rem; block-size: 1rem; }

.lang-switch__list { display: flex; gap: var(--space-1); }
.lang-switch__link {
  display: inline-flex;
  align-items: center;
  min-block-size: 28px;
  padding-inline: var(--space-3);
  border-radius: var(--radius-pill);
  color: var(--text-inverse-muted);
  text-decoration: none;
  font-weight: 500;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.lang-switch__link:hover { color: var(--color-white); background: color-mix(in srgb, var(--color-white) 10%, transparent); }
.lang-switch__link[aria-current="true"] { background: var(--color-white); color: var(--color-navy); font-weight: 700; }
.lang-switch__link[aria-disabled="true"] { opacity: .6; text-decoration: line-through; cursor: not-allowed; }

/* ---- Header -------------------------------------------------------------- */
.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-white) 92%, transparent);
  backdrop-filter: saturate(1.6) blur(14px);
  -webkit-backdrop-filter: saturate(1.6) blur(14px);
  border-block-end: 1px solid transparent;
  transition: box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.site-header.is-scrolled { border-block-end-color: var(--border); box-shadow: var(--shadow-m); }

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  min-block-size: var(--header-h);
}
.site-header__brand { display: inline-flex; flex: none; border-radius: var(--radius-s); }
.site-header__brand img { inline-size: auto; block-size: 52px; }
.site-header__actions { display: flex; align-items: center; gap: var(--space-2); margin-inline-start: auto; }

.icon-btn {
  display: inline-grid;
  place-items: center;
  inline-size: 44px;
  block-size: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--bg);
  color: var(--color-navy);
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.icon-btn:hover { background: var(--color-navy); border-color: var(--color-navy); color: var(--color-white); }

/* ---- Primary nav ----------------------------------------------------------- */
.primary-nav__list { display: flex; flex-wrap: wrap; gap: var(--space-1); }
.primary-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-block-size: 44px;
  padding-inline: var(--space-3);
  color: var(--color-navy);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-sm);
  text-decoration: none;
  white-space: nowrap;
}
.primary-nav__link::after {
  content: "";
  position: absolute;
  inset-inline: var(--space-3);
  inset-block-end: 6px;
  block-size: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: var(--origin, left);
  transition: transform var(--dur) var(--ease);
}
[dir="rtl"] .primary-nav__link::after { --origin: right; }
.primary-nav__link:hover { color: var(--color-navy); }
.primary-nav__link:hover::after,
.primary-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.nav-toggle { display: none; }

/* Desktop */
@media (min-width: 1080px) {
  .primary-nav { margin-inline-start: auto; }
  .site-header__actions { margin-inline-start: 0; }
}

/* ---- Navigation Dropdowns & Mega Menu ------------------------------------ */
.nav-item--has-sub {
  position: relative;
}
.nav-item__toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  min-block-size: 44px;
  padding-inline: var(--space-3);
  color: var(--color-navy);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-sm);
  background: transparent;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--dur) var(--ease);
}
.nav-item__toggle:hover,
.nav-item--has-sub:hover .nav-item__toggle,
.nav-item--has-sub.is-open .nav-item__toggle {
  color: var(--accent-text);
}
.nav-item__toggle .icon--chevron {
  inline-size: 1rem;
  block-size: 1rem;
  transition: transform var(--dur) var(--ease);
}
.nav-item--has-sub:hover .icon--chevron,
.nav-item--has-sub.is-open .icon--chevron {
  transform: rotate(180deg);
}

/* Standard Dropdown */
.nav-sub {
  position: absolute;
  inset-block-start: 100%;
  inset-inline-start: 0;
  z-index: 150;
  min-inline-size: 260px;
  padding: var(--space-2);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-l);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.24s var(--ease), transform 0.24s var(--ease), visibility 0.24s;
  list-style: none;
  margin: 0;
}
.nav-sub::before {
  content: '';
  position: absolute;
  inset-block-start: -16px;
  inset-inline: 0;
  block-size: 16px;
  background: transparent;
  pointer-events: auto;
}
.nav-item--has-sub:hover .nav-sub,
.nav-item--has-sub:focus-within .nav-sub,
.nav-item--has-sub.is-open .nav-sub {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}
.nav-sub__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  color: var(--text);
  text-decoration: none;
  border-radius: var(--radius-s);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.nav-sub__link:hover {
  background: var(--bg-subtle);
  color: var(--color-navy);
}
.nav-sub__link .icon {
  inline-size: 1.15rem;
  block-size: 1.15rem;
  color: var(--color-navy);
  flex: none;
}
.nav-sub__desc {
  display: block;
  font-size: var(--fs-xs);
  color: var(--text-muted);
  font-weight: 400;
  margin-block-start: 2px;
}

/* Mega Menu */
.nav-item--mega {
  position: static;
}
.mega-menu {
  position: absolute;
  inset-block-start: 100%;
  inset-inline: 0;
  z-index: 150;
  background: var(--bg);
  border-block-start: 1px solid var(--border);
  border-block-end: 2px solid var(--border);
  box-shadow: var(--shadow-xl);
  padding-block: var(--space-8);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease), visibility 0.28s;
}
.mega-menu::before {
  content: '';
  position: absolute;
  inset-block-start: -24px;
  inset-inline: 0;
  block-size: 24px;
  background: transparent;
  pointer-events: auto;
}
.nav-item--mega:hover .mega-menu,
.nav-item--mega:focus-within .mega-menu,
.nav-item--mega.is-open .mega-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}
.mega-menu__inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}
.mega-menu__col {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.mega-menu__heading {
  margin: 0 0 var(--space-2);
  font-size: var(--fs-sm);
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent-text);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.mega-menu__heading::before {
  content: "";
  inline-size: 16px;
  block-size: 2px;
  background: currentColor;
}
:root[lang="ar"] .mega-menu__heading { letter-spacing: 0; }
.mega-menu__list {
  display: grid;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}
.mega-menu__item-link {
  display: flex;
  flex-direction: column;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-m);
  text-decoration: none;
  color: var(--text);
  background: transparent;
  border: 1px solid transparent;
  transition: all var(--dur) var(--ease);
}
.mega-menu__item-link:hover {
  background: var(--bg-subtle);
  border-color: var(--border-subtle);
}
.mega-menu__item-title {
  font-weight: 700;
  font-size: var(--fs-sm);
  color: var(--color-navy);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.mega-menu__item-title .icon {
  inline-size: 1rem;
  block-size: 1rem;
  color: var(--accent-text);
}
.mega-menu__item-desc {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  margin-block-start: var(--space-1);
}

/* ---- Site Search Dropdown Container -------------------------------------- */
.search-dropdown {
  position: absolute;
  inset-block-start: 100%;
  inset-inline: 0;
  z-index: 140;
  background: var(--bg);
  border-block: 1px solid var(--border-strong);
  box-shadow: var(--shadow-xl);
  padding-block: var(--space-6);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.search-dropdown.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.search-dropdown__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.search-dropdown__form {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.search-dropdown__input-wrap {
  position: relative;
  flex: 1;
}
.search-dropdown__input-wrap .icon {
  position: absolute;
  inset-inline-start: var(--space-4);
  inset-block-start: 50%;
  transform: translateY(-50%);
  color: var(--color-navy);
  inline-size: 1.35rem;
  block-size: 1.35rem;
  pointer-events: none;
}
.search-dropdown__input {
  inline-size: 100%;
  min-block-size: 54px;
  padding-inline: calc(var(--space-4) * 2 + 1.35rem) var(--space-4);
  background: var(--bg-subtle);
  border: 2px solid var(--border-strong);
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  color: var(--text);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.search-dropdown__input:focus {
  outline: none;
  border-color: var(--color-navy);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-denim) 25%, transparent);
}
.search-dropdown__close {
  flex: none;
}
.search-dropdown__hint {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Autocomplete live results container */
.search-autocomplete {
  display: grid;
  gap: var(--space-2);
  max-block-size: 400px;
  overflow-y: auto;
  padding: var(--space-3);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-m);
}
.search-autocomplete:empty {
  display: none;
}
.search-result-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-m);
  text-decoration: none;
  color: var(--text);
  transition: background-color var(--dur) var(--ease);
}
.search-result-item:hover,
.search-result-item:focus {
  background: var(--bg-subtle);
}
.search-result-item__thumb {
  display: grid;
  place-items: center;
  inline-size: 44px;
  block-size: 44px;
  border-radius: var(--radius-s);
  background: var(--bg-muted);
  color: var(--color-navy);
  flex: none;
  font-weight: 800;
  font-size: 11px;
}
.search-result-item__thumb--doc {
  background: var(--color-navy);
  color: var(--color-white);
}
.search-result-item__body {
  flex: 1;
  min-inline-size: 0;
}
.search-result-item__title {
  margin: 0;
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-navy);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.search-result-item__snippet {
  margin: 2px 0 0;
  font-size: var(--fs-xs);
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.search-result-item__badge {
  flex: none;
}

/* Mobile/tablet: when JS is available, nav becomes an off-canvas drawer.
   Without JS the list simply wraps under the logo (progressive enhancement). */
@media (max-width: 1079.98px) {
  .site-header__inner { flex-wrap: wrap; }
  .primary-nav { order: 3; inline-size: 100%; padding-block-end: var(--space-3); }

  .js .nav-toggle { display: inline-grid; }
  .js .primary-nav {
    position: fixed;
    inset-block: 0;
    inset-inline-end: 0;
    z-index: 200;
    inline-size: min(88vw, 380px);
    padding: calc(var(--header-h) + var(--space-4)) var(--space-6) var(--space-8);
    background: var(--bg);
    box-shadow: var(--shadow-l);
    transform: translateX(var(--drawer-off, 100%));
    visibility: hidden;
    transition: transform 320ms var(--ease), visibility 0s linear 320ms;
    overflow-y: auto;
  }
  [dir="rtl"].js .primary-nav, .js [dir="rtl"] .primary-nav { --drawer-off: -100%; }
  .js .primary-nav.is-open {
    transform: translateX(0);
    visibility: visible;
    transition: transform 320ms var(--ease), visibility 0s;
  }
  .js .primary-nav__list { flex-direction: column; gap: 0; }
  .js .primary-nav__link {
    inline-size: 100%;
    min-block-size: 56px;
    font-size: var(--fs-lg);
    border-block-end: 1px solid var(--border);
  }
  .js .primary-nav__link::after { inset-inline: 0; inset-block-end: -1px; }
  .js .nav-toggle { position: relative; z-index: 210; }

  .nav-scrim {
    position: fixed; inset: 0; z-index: 150;
    background: color-mix(in srgb, var(--color-navy-950) 55%, transparent);
    opacity: 0; pointer-events: none;
    transition: opacity 320ms var(--ease);
  }
  .nav-scrim.is-visible { opacity: 1; pointer-events: auto; }
}

@media (max-width: 560px) {
  .utility-bar__note { display: none; }
  .utility-bar__inner { justify-content: center; }
  .site-header__brand img { block-size: 42px; }
}

/* ---- Footer -------------------------------------------------------------- */
.site-footer {
  position: relative;
  overflow: hidden;
  background: var(--color-black);
  color: var(--text-inverse-muted);
  font-size: var(--fs-sm);
}
.site-footer a { color: var(--color-white); text-decoration: none; }
.site-footer a:hover { color: var(--color-white); text-decoration: underline; }

.site-footer__top {
  position: relative;
  display: grid;
  gap: var(--space-10);
  padding-block: var(--space-16) var(--space-12);
  grid-template-columns: 1fr;
}
@media (min-width: 900px) {
  .site-footer__top { grid-template-columns: 1.4fr repeat(4, 1fr); }
}
.site-footer__brand img { inline-size: 220px; block-size: auto; margin-block-end: var(--space-4); }
.site-footer__heading {
  margin-block-end: var(--space-4);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-white);
}
:root[lang="ar"] .site-footer__heading { letter-spacing: 0; }
.site-footer__list { display: grid; gap: var(--space-2); }
.site-footer__contact li { display: flex; gap: var(--space-2); align-items: flex-start; }
.site-footer__contact .icon { margin-block-start: .2em; color: var(--accent-contrast); opacity: .8; }

.site-footer__bottom {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-6);
  border-block-start: 1px solid var(--border-inverse);
  font-size: var(--fs-xs);
}
.site-footer__bottom p { margin: 0; }
.site-footer__legal { display: flex; flex-wrap: wrap; gap: var(--space-5); }