/* ========================================
   Announcement Bar + Header + Mega Menu
   ======================================== */

/* ─── Announcement Bar ─── */
.announcement-bar {
  background: var(--color-accent);
  color: var(--color-white);
  text-align: center;
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1001;
  height: 36px;
  overflow: hidden;
}

.announcement-track {
  position: relative;
  height: 100%;
}

.announcement-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.5s ease, transform 0.5s ease;
  transform: translateY(8px);
  padding: 0 20px;
}

.announcement-slide.active {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Header ─── */
.header {
  position: fixed;
  top: 36px;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(12, 26, 46, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: all var(--transition-base);
}

.header.scrolled {
  background: rgba(12, 26, 46, 0.96);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.25);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* ─── Logo ─── */
.logo {
  display: flex;
  align-items: baseline;
  gap: 1px;
  font-family: var(--font-display);
  color: var(--color-white);
  font-size: var(--fs-2xl);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.logo-xs {
  font-weight: 400;
  font-size: 2rem;
  color: var(--color-accent);
}

.logo-text {
  font-weight: 400;
  font-size: var(--fs-xl);
  opacity: 0.9;
}

/* ─── Nav Links ─── */
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links > a,
.nav-dropdown-trigger {
  color: rgba(255, 255, 255, 0.75);
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: color var(--transition-fast);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

.nav-links > a::after,
.nav-dropdown-trigger::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.nav-links > a:hover,
.nav-links > a.active,
.nav-dropdown:hover .nav-dropdown-trigger {
  color: var(--color-white);
}

.nav-links > a:hover::after,
.nav-links > a.active::after,
.nav-dropdown:hover .nav-dropdown-trigger::after {
  width: 100%;
}

.nav-dropdown-trigger svg {
  transition: transform var(--transition-fast);
  opacity: 0.5;
}

.nav-dropdown:hover .nav-dropdown-trigger svg {
  transform: rotate(180deg);
  opacity: 1;
}

/* ─── Nav Dropdown wrapper ─── */
.nav-dropdown {
  position: static;
}

/* ─── Mega Menu (shared — full width, flush to header bottom) ─── */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.25s;
  z-index: 100;
}

.nav-dropdown:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mega-menu-inner {
  background: var(--color-white);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
  padding: 28px 0 20px;
  border-top: 3px solid var(--color-accent);
}

.mega-menu-inner .container {
  display: block;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--container-padding);
  height: auto;
  justify-content: initial;
  align-items: initial;
}

/* ─── Mega Menu: Brands ─── */
.mega-section {
  margin-bottom: 24px;
}

.mega-section:last-of-type {
  margin-bottom: 0;
}

.mega-label {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border-light);
}

.mega-brand-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}

.mega-brand-authorized {
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.mega-brand-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-fast);
  background: var(--color-white);
}

.mega-brand-item:hover {
  background: var(--color-bg-alt);
  border-color: var(--color-accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.mega-brand-authorized .mega-brand-item {
  border: 1px solid rgba(255, 94, 0, 0.15);
  background: rgba(255, 94, 0, 0.02);
  padding: 12px 20px;
}

.mega-brand-authorized .mega-brand-item:hover {
  border-color: var(--color-accent);
  background: rgba(255, 94, 0, 0.06);
}

.mega-brand-item .mega-brand-logo {
  width: 100px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}

.mega-brand-authorized .mega-brand-item .mega-brand-logo {
  width: 120px;
  height: 60px;
}

.mega-brand-item .mega-brand-logo img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.mega-brand-item span {
  font-family: var(--font-heading);
  font-size: var(--fs-base);
  font-weight: var(--fw-bold);
  color: var(--color-primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.mega-brand-authorized .mega-brand-item span {
  font-size: var(--fs-lg);
}

.mega-brand-international {
  grid-template-columns: repeat(6, 1fr);
}

.mega-divider {
  height: 1px;
  background: var(--color-border-light);
  margin: 8px 0 20px;
}

/* ─── Mega Menu: Categories ─── */
.mega-cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.mega-cat-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  transition: all var(--transition-base);
  border: 1px solid var(--color-border-light);
}

.mega-cat-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  border-color: var(--color-accent);
}

.mega-cat-item img {
  width: 100%;
  height: 100px;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-base);
}

.mega-cat-item:hover img {
  transform: scale(1.06);
}

.mega-cat-info {
  padding: 12px 14px;
  background: var(--color-white);
}

.mega-cat-info strong {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--fs-base);
  font-weight: var(--fw-bold);
  color: var(--color-primary);
  margin-bottom: 2px;
  letter-spacing: 0.01em;
}

.mega-cat-info span {
  font-size: var(--fs-sm);
  color: var(--color-text-light);
}

/* ─── Mega Footer ─── */
.mega-footer {
  padding-top: 16px;
  border-top: 1px solid var(--color-border-light);
  margin-top: 16px;
  text-align: center;
}

.mega-footer a {
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: color var(--transition-fast);
}

.mega-footer a:hover {
  color: var(--color-accent-hover);
}

/* ─── Header Actions ─── */
.header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-actions button {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-actions button:hover { color: var(--color-white); }

/* ─── Hamburger ─── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-white);
  transition: all var(--transition-base);
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ─── Mobile Nav ─── */
.mobile-nav {
  display: none;
  position: fixed;
  top: 108px; /* 36px announcement + 72px header */
  left: 0;
  width: 100%;
  background: rgba(12, 26, 46, 0.98);
  backdrop-filter: blur(16px);
  padding: 24px;
  transform: translateY(-100%);
  transition: transform var(--transition-base);
  z-index: 999;
}

.mobile-nav.open { transform: translateY(0); }

.mobile-nav a {
  display: block;
  color: rgba(255, 255, 255, 0.75);
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: color var(--transition-fast);
}

.mobile-nav a:hover { color: var(--color-accent); }

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  .mega-brand-grid { grid-template-columns: repeat(3, 1fr); }
  .mega-brand-authorized { grid-template-columns: repeat(2, 1fr); }
  .mega-brand-international { grid-template-columns: repeat(3, 1fr); }
  .mega-cat-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-nav { display: block; top: 92px; }
  .announcement-bar { font-size: 0.6rem; height: 28px; }
  .header { top: 28px; }
  .header .container { height: 64px; }
  .mega-menu { display: none; }
  .logo-xs { font-size: 1.6rem; }
  .logo-text { font-size: var(--fs-base); }
}