/* ==========================================================================
   KAYAN LUXURY FASHION — MEGA MENU & MOBILE DRAWER
   ========================================================================== */

/* Mega Menu Container (Desktop) */
.megamenu-panel {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
  transition: opacity 0.3s var(--ease-out-quart),
              transform 0.35s var(--ease-out-quart),
              visibility 0.3s,
              clip-path 0.4s var(--ease-out-expo);
  z-index: var(--z-megamenu);
  overflow: hidden;
}

.megamenu-panel.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

.megamenu-inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-xl) var(--space-xl);
  display: grid;
  grid-template-columns: repeat(4, 1fr) 320px;
  gap: var(--space-xl);
}

.megamenu-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.megamenu-title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text);
  padding-bottom: var(--space-2xs);
  border-bottom: 1px solid var(--color-border-subtle);
}

.megamenu-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.megamenu-item-link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 4px 0;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  transition: color var(--duration-fast), transform var(--duration-fast);
  position: relative;
}

.megamenu-thumb {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  overflow: hidden;
  background-color: var(--color-bg-secondary);
  flex-shrink: 0;
  transition: transform var(--duration-fast) var(--ease-spring);
}

.megamenu-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.megamenu-item-link:hover {
  color: var(--color-text);
  transform: translateX(4px);
}

.megamenu-item-link:hover .megamenu-thumb {
  transform: scale(1.15);
}

.megamenu-arrow {
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity var(--duration-fast), transform var(--duration-fast);
  color: var(--color-accent);
  margin-inline-start: auto;
}

.megamenu-item-link:hover .megamenu-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* Featured Editorial Card on Right */
.megamenu-featured {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg-secondary);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-md);
  color: #FFFFFF;
  min-height: 280px;
}

.megamenu-featured-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out-quart);
}

.megamenu-featured:hover .megamenu-featured-img {
  transform: scale(1.05);
}

.megamenu-featured-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(0, 0, 0, 0.75) 100%);
  pointer-events: none;
}

.megamenu-featured-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.megamenu-featured-tag {
  font-size: var(--text-2xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 700;
  color: var(--brand-bronze-light);
}

.megamenu-featured-title {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
  line-height: 1.2;
}

.megamenu-featured-btn {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #FFFFFF;
  margin-top: 4px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ==========================================================================
   MOBILE OFF-CANVAS NAVIGATION DRAWER
   ========================================================================== */
.mobile-nav-drawer {
  position: fixed;
  inset: 0;
  width: 100%;
  max-width: 420px;
  height: 100vh;
  background: var(--color-surface);
  z-index: var(--z-drawer);
  transform: translateX(-100%);
  transition: transform 0.4s var(--ease-out-expo);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

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

.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: calc(var(--z-drawer) - 1);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-nav-backdrop.active {
  opacity: 1;
  visibility: visible;
}

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

.mobile-nav-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md);
}

.mobile-dept-tabs {
  display: flex;
  overflow-x: auto;
  gap: var(--space-2xs);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border-subtle);
  margin-bottom: var(--space-md);
}

.mobile-dept-btn {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--color-bg-secondary);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.mobile-dept-btn.active {
  background: var(--color-primary);
  color: var(--color-primary-contrast);
}

.mobile-nav-accordion-item {
  border-bottom: 1px solid var(--color-border-subtle);
}

.mobile-accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-sm);
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  background: none;
  border: none;
}

.mobile-accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s var(--ease-out-quart);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding-inline-start: var(--space-sm);
  padding-bottom: var(--space-xs);
}

.mobile-accordion-item.open .mobile-accordion-content {
  max-height: 500px;
}