/* ============================================
   Component: Main Header - Premium Glass
   ============================================ */

.main-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  background: color-mix(in srgb, var(--color-card), transparent 15%);
  backdrop-filter: blur(32px) saturate(1.6);
  -webkit-backdrop-filter: blur(32px) saturate(1.6);
  box-shadow: 0 0.25rem 2rem rgba(0, 0, 0, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transition: box-shadow 400ms var(--ease-smooth);
}

.main-header::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, transparent, rgba(25, 118, 210, 0.06), transparent);
  opacity: 0;
  transition: opacity 600ms var(--ease-smooth);
  content: "";
}

.main-header:hover::before {
  opacity: 1;
}

.main-header:has(:focus-visible) {
  box-shadow: 0 0.5rem 3rem rgba(0, 0, 0, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.main-header.is-scrolled {
  box-shadow: 0 0.75rem 3rem rgba(0, 0, 0, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

/* Animated gradient bottom border */
.main-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    color-mix(in srgb, var(--color-primary), transparent 78%) 15%,
    color-mix(in srgb, var(--color-accent-light), transparent 65%) 30%,
    color-mix(in srgb, var(--color-accent-light), transparent 70%) 50%,
    color-mix(in srgb, var(--color-accent-light), transparent 65%) 70%,
    color-mix(in srgb, var(--color-primary), transparent 78%) 85%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: header-border-shimmer 6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes header-border-shimmer {
  0%, 100% { background-position: 0% 0; }
  50% { background-position: 100% 0; }
}

.main-header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(calc(100% - 2rem), var(--container-size));
  min-height: 5rem;
  margin: 0 auto;
}

/* Brand / Logo */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 900;
  text-decoration: none;
  color: var(--color-ink);
  flex-shrink: 0;
  transition: opacity 300ms var(--ease-smooth), transform 300ms var(--ease-smooth);
}

.brand:hover {
  transform: scale(1.02);
}

.brand:active {
  transform: scale(0.97);
}

.brand__image {
  width: 3rem;
  height: 3rem;
  filter: drop-shadow(0 0.6rem 1.2rem rgba(15, 95, 89, 0.2));
  transition: transform 500ms var(--ease-bounce);
}

.brand:hover .brand__image {
  transform: rotate(-6deg) scale(1.06);
}

.brand__text {
  white-space: nowrap;
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--color-ink), var(--color-primary));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Header category hamburger */
.main-header__category {
  position: relative;
  flex-shrink: 0;
}

.category-menu__toggle,
.main-header__menu {
  place-items: center;
  min-width: 2.75rem;
  height: 2.75rem;
  color: var(--color-ink);
  background: color-mix(in srgb, var(--color-card), transparent 10%);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-smooth);
  backdrop-filter: blur(8px);
}

.category-menu__toggle {
  display: inline-flex;
  gap: 0.55rem;
  padding: 0 0.9rem;
  font-weight: 800;
  white-space: nowrap;
}

.main-header__menu {
  display: none;
  padding: 0;
}

.category-menu__toggle:hover,
.category-menu__toggle[aria-expanded="true"],
.main-header__menu:hover,
.main-header__menu[aria-expanded="true"] {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 0.5rem 1.5rem rgba(15, 95, 89, 0.12);
}

.category-menu__icon,
.main-header__menu {
  flex-direction: column;
  gap: 0.25rem;
}

.category-menu__icon {
  display: inline-flex;
}

.category-menu__icon span,
.main-header__menu-line {
  display: block;
  width: 1.15rem;
  height: 2px;
  background: currentColor;
  border-radius: 999px;
}

.category-menu {
  position: absolute;
  top: calc(100% + 0.75rem);
  inset-inline-start: 0;
  display: grid;
  min-width: 15rem;
  padding: 0.65rem;
  background: color-mix(in srgb, var(--color-card), transparent 8%);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(24px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-0.5rem) scale(0.95);
  transform-origin: top;
  transition: opacity 260ms var(--ease-smooth), transform 260ms var(--ease-smooth), visibility 260ms var(--ease-smooth);
  z-index: 110;
}

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

.category-menu__link {
  padding: 0.78rem 0.9rem;
  color: var(--color-muted);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all 200ms var(--ease-smooth);
  white-space: nowrap;
}

.category-menu__link:hover,
.category-menu__link[aria-current="page"] {
  color: var(--color-primary);
  background: var(--color-primary-soft);
  transform: translateX(-4px);
  font-weight: 500;
}

html[dir="ltr"] .category-menu__link:hover,
html[dir="ltr"] .category-menu__link[aria-current="page"] {
  transform: translateX(4px);
}

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  margin-inline: auto;
}

.main-nav__link {
  position: relative;
  padding: 0.65rem 0.85rem;
  font-size: 0.92rem;
  color: var(--color-muted);
  text-decoration: none;
  border-radius: var(--radius-pill);
  transition: all var(--transition-smooth);
  white-space: nowrap;
}

.main-nav__link::after {
  position: absolute;
  inset-inline: 0.85rem;
  bottom: 0.35rem;
  height: 2px;
  background: var(--color-accent);
  border-radius: var(--radius-pill);
  transform: scaleX(0);
  transition: transform var(--transition-smooth);
  content: "";
}

.main-nav__link:hover,
.main-nav__link[aria-current="page"] {
  color: var(--color-ink);
  background: var(--color-primary-soft);
  transform: translateY(-1px);
}

.main-nav__link:hover::after,
.main-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

/* Header Actions */
.main-header__actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

/* Language Switcher */
.language-switcher {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem;
  border: 1.5px solid var(--color-line);
  background: color-mix(in srgb, var(--color-card), transparent 10%);
  border-radius: var(--radius-pill);
  transition: all 200ms ease;
  backdrop-filter: blur(8px);
}

.language-switcher:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(15, 95, 89, 0.1);
}

.language-switcher__button {
  display: grid;
  place-items: center;
  width: 2.45rem;
  height: 2.45rem;
  font-size: 1rem;
  color: var(--color-ink);
  background: transparent;
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all 200ms var(--ease-smooth);
  font-family: inherit;
}

.language-switcher__button:hover,
.language-switcher__button.is-active {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  transform: scale(1.05);
}

.language-switcher__button:active {
  transform: scale(0.98);
}

/* Theme Toggle */
.theme-toggle {
  display: grid;
  place-items: center;
  width: 2.45rem;
  height: 2.45rem;
  color: var(--color-ink);
  background: color-mix(in srgb, var(--color-card), transparent 10%);
  border: 1.5px solid var(--color-line);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all 200ms var(--ease-smooth);
  font-family: inherit;
  backdrop-filter: blur(8px);
}

.theme-toggle:hover {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
  transform: scale(1.08) rotate(15deg);
  box-shadow: 0 0.5rem 1.5rem rgba(25, 118, 210, 0.15);
}

.theme-toggle:active {
  transform: scale(0.96) rotate(0deg);
}

.theme-toggle__icon::before {
  content: "\263E";
  font-size: 1.2rem;
  transition: transform 400ms var(--ease-bounce);
  display: inline-block;
}

.theme-toggle:hover .theme-toggle__icon::before {
  transform: rotate(-20deg);
}

html[data-theme="dark"] .theme-toggle__icon::before {
  content: "\2600";
}

html[data-theme="dark"] .theme-toggle:hover .theme-toggle__icon::before {
  transform: rotate(20deg);
}

/* Category Sidebar */
.category-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 40;
  width: 280px;
  height: 100vh;
  background: color-mix(in srgb, var(--color-card), transparent 8%);
  border-left: 1px solid var(--color-line);
  box-shadow: var(--shadow-lg);
  transform: translateX(100%);
  transition: transform 400ms var(--ease-smooth);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
}

.category-sidebar.is-open {
  transform: translateX(0);
}

.category-sidebar__toggle {
  position: absolute;
  top: 1rem;
  left: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  z-index: 45;
  box-shadow: 0 0.5rem 1.5rem rgba(15, 95, 89, 0.2);
}

.category-sidebar__toggle-line {
  width: 1.5rem;
  height: 2px;
  background: white;
  transition: all var(--transition-fast);
}

.category-sidebar__nav {
  padding: 4rem 1.5rem 2rem;
}

.category-sidebar__title {
  margin: 0 0 1.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-ink);
}

.category-sidebar__link {
  position: relative;
  display: block;
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  color: var(--color-muted);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-smooth);
}

.category-sidebar__link::before {
  position: absolute;
  inset-block: 0.65rem;
  inset-inline-start: 0.45rem;
  width: 0.22rem;
  background: var(--color-accent);
  border-radius: var(--radius-pill);
  opacity: 0;
  transform: scaleY(0.4);
  transition: all var(--transition-smooth);
  content: "";
}

.category-sidebar__link:hover,
.category-sidebar__link.is-active {
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.category-sidebar__link.is-active {
  font-weight: 600;
}

.category-sidebar__link:hover::before,
.category-sidebar__link.is-active::before {
  opacity: 1;
  transform: scaleY(1);
}

/* RTL Adjustments */
html[dir="rtl"] .category-sidebar {
  right: auto;
  left: 0;
  border-left: none;
  border-right: 1px solid var(--color-line);
  transform: translateX(-100%);
}

html[dir="rtl"] .category-sidebar.is-open {
  transform: translateX(0);
}

html[dir="rtl"] .category-sidebar__toggle {
  left: auto;
  right: 1rem;
}

html[dir="rtl"] .main-nav__link {
  font-family: "Vazirmatn", "Noto Sans Arabic", Tahoma, sans-serif;
}

html[dir="rtl"] .brand__text {
  font-family: "Vazirmatn", "Noto Sans Arabic", Tahoma, sans-serif;
}

/* Mega Menu */
:root {
  --mega-bg: rgba(26, 26, 26, 0.94);
  --mega-gold: #ffcc00;
  --mega-text: #ffffff;
  --mega-muted: rgba(255, 255, 255, 0.72);
  --mega-line: rgba(255, 204, 0, 0.42);
}

.main-nav[data-mega-menu-root] {
  direction: rtl;
}

.main-nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.main-nav__item {
  position: relative;
}

.mega-menu--fa,
.mega-menu--fa .main-nav__link,
.mega-menu--fa .mega-menu__panel {
  font-family: "Vazirmatn", "Noto Sans Arabic", Tahoma, sans-serif;
}

.mega-menu--latin,
.mega-menu--latin .main-nav__link,
.mega-menu--latin .mega-menu__panel {
  font-family: Inter, Roboto, "Segoe UI", sans-serif;
}

.mega-menu__trigger {
  font: inherit;
  background: transparent;
  border: 0;
  appearance: none;
  cursor: pointer;
}

.mega-menu__trigger::after {
  content: "";
  display: inline-block;
  width: 0.45rem;
  height: 0.45rem;
  margin-inline-start: 0.5rem;
  border-inline-end: 2px solid currentColor;
  border-block-end: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform 300ms var(--ease-smooth);
}

.mega-menu__trigger[aria-expanded="true"] {
  color: var(--mega-gold);
  background: rgba(255, 204, 0, 0.12);
}

.mega-menu__trigger[aria-expanded="true"]::after {
  transform: rotate(225deg) translate(-2px, -2px);
}

.mega-menu__panel {
  position: fixed;
  top: 5rem;
  right: 0;
  left: 0;
  z-index: 120;
  width: 100vw;
  padding: clamp(1.25rem, 2vw, 2rem) max(1rem, calc((100vw - 1180px) / 2));
  color: var(--mega-text);
  background: var(--mega-bg);
  border-top: 2px solid var(--mega-gold);
  box-shadow: 0 2rem 5rem rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-0.85rem);
  transition: opacity 300ms var(--ease-smooth), transform 300ms var(--ease-smooth), visibility 300ms var(--ease-smooth);
}

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

.mega-menu__panel[hidden] {
  display: block;
  pointer-events: none;
}

.mega-menu__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 2rem);
  width: min(100%, 1180px);
  margin: 0 auto;
}

.mega-menu__column {
  min-width: 0;
  padding: 0.25rem 0 0.25rem clamp(0.75rem, 1vw, 1.25rem);
  border-inline-left: 1px solid rgba(255, 255, 255, 0.1);
}

.mega-menu__column:last-child {
  border-inline-left: 0;
}

.mega-menu__heading {
  position: relative;
  margin: 0 0 1rem;
  padding-block-end: 0.75rem;
  color: var(--mega-text);
  font-size: clamp(1rem, 1vw, 1.15rem);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.mega-menu__heading::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 2.6rem;
  height: 2px;
  background: var(--mega-gold);
  border-radius: 999px;
}

.mega-menu__items {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.mega-menu__link,
.mega-menu__cta {
  display: inline-flex;
  align-items: center;
  width: 100%;
  min-height: 2.35rem;
  color: var(--mega-muted);
  text-decoration: none;
  border-radius: 0.85rem;
  transition: color 220ms var(--ease-smooth), background 220ms var(--ease-smooth), transform 220ms var(--ease-smooth);
}

.mega-menu__link {
  padding: 0.45rem 0.65rem;
  font-size: 0.94rem;
}

.mega-menu__link::before {
  content: "";
  width: 0.35rem;
  height: 0.35rem;
  margin-inline-end: 0.65rem;
  background: currentColor;
  border-radius: 999px;
  opacity: 0.55;
}

.mega-menu__link:hover,
.mega-menu__link:focus-visible,
.mega-menu__link[aria-current="page"] {
  color: var(--mega-gold);
  background: rgba(255, 204, 0, 0.1);
  transform: translateX(-4px);
  outline: none;
}

.mega-menu__footer {
  display: flex;
  justify-content: flex-start;
  width: min(100%, 1180px);
  margin: 1.25rem auto 0;
  padding-top: 1rem;
  border-top: 1px solid var(--mega-line);
}

.mega-menu__cta {
  width: auto;
  min-height: 2.6rem;
  padding: 0.55rem 1rem;
  color: #1a1a1a;
  font-weight: 900;
  background: var(--mega-gold);
  border-radius: var(--radius-pill);
  transition: all 220ms var(--ease-smooth);
}

.mega-menu__cta:hover,
.mega-menu__cta:focus-visible {
  color: #1a1a1a;
  transform: translateY(-2px);
  box-shadow: 0 0.5rem 1.5rem rgba(255, 204, 0, 0.3);
  outline: none;
}

@media (min-width: 1180px) {
  .mega-menu__grid--five {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

/* Responsive - Mobile & Tablet */
@media (max-width: 1040px) {
  .main-header__menu {
    display: flex;
  }

  .category-menu__toggle > span:last-child {
    display: none;
  }

  .category-menu {
    inset-inline-start: auto;
    inset-inline-end: 0;
  }
  
  .main-nav {
    position: absolute;
    top: calc(100% + 0.75rem);
    right: 1rem;
    left: 1rem;
    padding: 1rem;
    background: color-mix(in srgb, var(--color-card), transparent 8%);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-0.5rem) scale(0.97);
    transition: opacity 260ms var(--ease-smooth), transform 260ms var(--ease-smooth), visibility 260ms var(--ease-smooth);
    pointer-events: none;
  }
  
  .main-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
    pointer-events: auto;
  }
  
  .main-nav__list {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    width: 100%;
    align-items: stretch;
  }
  
  .main-nav__item {
    position: static;
  }
  
  .main-nav__link {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0.75rem;
    white-space: normal;
    width: 100%;
  }

  .main-nav__link::after {
    display: none;
  }
  
  .main-nav__item.mega-menu .mega-menu__trigger {
    width: 100%;
    justify-content: center;
  }

  .mega-menu__panel {
    position: static;
    width: 100%;
    max-height: min(60vh, 30rem);
    margin-top: 0.5rem;
    padding: 1rem;
    overflow-y: auto;
    background: var(--color-paper);
    color: var(--color-ink);
    border: 1px solid var(--color-line);
    border-top: 2px solid var(--color-accent);
    border-radius: var(--radius-lg);
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .mega-menu__panel[hidden] {
    display: none !important;
  }

  .mega-menu__panel .mega-menu__heading {
    color: var(--color-ink);
  }

  .mega-menu__panel .mega-menu__heading::after {
    background: var(--color-accent);
  }

  .mega-menu__panel .mega-menu__link,
  .mega-menu__panel .mega-menu__cta {
    color: var(--color-muted);
    min-height: 2.5rem;
  }

  .mega-menu__panel .mega-menu__link:hover,
  .mega-menu__panel .mega-menu__link:focus-visible {
    color: var(--color-primary);
    background: var(--color-primary-soft);
    transform: none;
  }

  .mega-menu__panel .mega-menu__cta {
    background: var(--color-primary);
    color: var(--color-card);
    border-radius: var(--radius-pill);
  }

  .mega-menu__panel .mega-menu__cta:hover {
    background: var(--color-primary-dark);
    transform: none;
  }

  .mega-menu__grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .mega-menu__column {
    padding: 0;
    border-inline-left: 0;
  }

  .mega-menu__heading {
    margin-bottom: 0.45rem;
  }

  .mega-menu__footer {
    margin-top: 0.75rem;
    border-top-color: var(--color-line);
  }

  .mega-menu__cta {
    justify-content: center;
    width: 100%;
  }
  
  .brand__text {
    display: none;
  }
  
  .language-switcher__button {
    width: 2rem;
    height: 2rem;
    font-size: 0.85rem;
  }
}