/* ============================================
   HEADER — Top Bar + Sticky Header + Mega Menu
   ============================================ */

/* ── Top Info Bar ── */
.top-bar {
  background: var(--color-primary);
  padding: 8px 0;
  position: relative;
  z-index: var(--z-sticky);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.top-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.top-bar__left {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-dark-text);
  font-size: var(--text-sm);
}

.top-bar__left svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
}

.top-bar__left a {
  color: var(--color-dark-text);
  transition: color var(--transition-fast);
}

.top-bar__left a:hover {
  color: var(--color-accent);
}

.top-bar__center {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.top-bar__social {
  display: flex;
  gap: var(--space-3);
}

.top-bar__social a {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.08);
  color: var(--color-dark-text);
  transition: all var(--transition-fast);
}

.top-bar__social a:hover {
  background: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-2px);
}

.top-bar__social a svg {
  width: 14px;
  height: 14px;
}

.top-bar__right {
  overflow: hidden;
  max-width: 350px;
}

.top-bar__marquee {
  color: var(--color-accent);
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  white-space: nowrap;
  animation: marquee 20s linear infinite;
}

@keyframes marquee {
  0% { transform: translateX(100%); }
  100% { transform: translateX(-100%); }
}

/* ── Main Header ── */
.main-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--color-white);
  transition: all var(--transition-base);
  border-bottom: 1px solid transparent;
}

.main-header.scrolled {
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  border-bottom-color: var(--color-border);
}

.main-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-8);
}

/* ── Logo ── */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.logo__icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 20px;
  font-weight: var(--fw-bold);
  box-shadow: var(--shadow-accent);
}

.logo__text {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--fw-extrabold);
  color: var(--color-primary);
  letter-spacing: -0.03em;
}

.logo__text span {
  color: var(--color-accent);
}

/* ── Navigation ── */
.main-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.main-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.main-nav__item {
  position: relative;
}

.main-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: 8px 16px;
  font-size: var(--text-base);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.main-nav__link:hover,
.main-nav__link.active {
  color: var(--color-accent);
  background: rgba(255, 77, 0, 0.06);
}

.main-nav__link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.main-nav__item:hover .main-nav__link svg {
  transform: rotate(180deg);
}

/* ── Mega Menu ── */
.mega-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  width: 780px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2xl);
  border: 1px solid var(--color-border);
  padding: var(--space-8);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(10px);
  transition: all var(--transition-base);
  z-index: var(--z-dropdown);
}

.main-nav__item:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.mega-menu::before {
  content: '';
  position: absolute;
  top: -20px;
  left: 0;
  right: 0;
  height: 20px;
}

.mega-menu__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.mega-menu__category {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.mega-menu__category:hover {
  background: var(--color-surface);
  transform: translateX(4px);
}

.mega-menu__category-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(255, 77, 0, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.mega-menu__category-name {
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  margin-bottom: 2px;
}

.mega-menu__category-desc {
  font-size: var(--text-xs);
  color: var(--color-muted);
  line-height: var(--lh-snug);
}

.mega-menu__footer {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mega-menu__promo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  background: rgba(255, 77, 0, 0.06);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-accent);
  font-weight: var(--fw-semibold);
}

/* ── Header Actions ── */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.header-action {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: all var(--transition-fast);
  position: relative;
  cursor: pointer;
  background: none;
  border: none;
}

.header-action:hover {
  background: var(--color-surface);
  color: var(--color-accent);
}

.header-action svg {
  width: 22px;
  height: 22px;
}

.header-action__badge {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 20px;
  height: 20px;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 11px;
  font-weight: var(--fw-bold);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-white);
}

/* ── Search Overlay ── */
.search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 20vh;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

.search-overlay__inner {
  width: 100%;
  max-width: 640px;
  padding: 0 var(--space-6);
  transform: translateY(-20px);
  transition: transform var(--transition-base);
}

.search-overlay.active .search-overlay__inner {
  transform: translateY(0);
}

.search-overlay__input {
  width: 100%;
  padding: 20px 24px;
  background: var(--color-white);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  font-size: var(--text-xl);
  color: var(--color-primary);
  box-shadow: var(--shadow-2xl);
}

.search-overlay__input:focus {
  border-color: var(--color-accent);
}

.search-overlay__close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.1);
  border: none;
  border-radius: var(--radius-full);
  color: var(--color-white);
  cursor: pointer;
  font-size: 24px;
  transition: all var(--transition-fast);
}

.search-overlay__close:hover {
  background: var(--color-accent);
  transform: rotate(90deg);
}

/* ── Mobile Menu ── */
.mobile-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
}

.mobile-menu-toggle svg {
  width: 24px;
  height: 24px;
}

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 320px;
  height: 100vh;
  background: var(--color-white);
  z-index: var(--z-modal);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
  box-shadow: var(--shadow-2xl);
  overflow-y: auto;
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu__close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 18px;
  color: var(--color-text);
}

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

.mobile-menu__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-4);
  font-size: var(--text-md);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.mobile-menu__link:hover {
  background: var(--color-surface);
  color: var(--color-accent);
}

.mobile-menu__submenu {
  padding-left: var(--space-6);
  display: none;
}

.mobile-menu__submenu.open {
  display: block;
}

.mobile-menu__sub-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-light);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.mobile-menu__sub-link:hover {
  background: var(--color-surface);
  color: var(--color-accent);
}

.mobile-menu__sub-link .emoji {
  font-size: 18px;
}