/* ==========================================================================
   DEVSTUDIO — HEADER, NAVIGATION, MODALS & DRAWERS
   Master Navigation & Interactive Overlays Stylesheet
   ========================================================================== */

/* 1. Dynamic Announcement Bar */
.announcement-bar {
  background-color: var(--ds-color-gray-950);
  color: var(--ds-color-gray-100);
  font-size: 0.8125rem;
  font-weight: var(--ds-font-weight-regular);
  min-height: var(--ds-announcement-height);
  display: flex;
  align-items: center;
  position: relative;
  z-index: 102;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform var(--ds-transition-base), opacity var(--ds-transition-base), height var(--ds-transition-base);
}

.announcement-bar.is-hidden {
  display: none;
}

.announcement-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.announcement-content {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  text-align: center;
  gap: 10px;
}

.announcement-badge {
  display: inline-block;
  background-color: rgba(255, 255, 255, 0.12);
  color: var(--ds-color-white);
  font-size: 0.6875rem;
  font-weight: var(--ds-font-weight-semibold);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: var(--ds-radius-full);
}

.announcement-close {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ds-color-gray-400);
  padding: 4px;
  border-radius: var(--ds-radius-xs);
  transition: color var(--ds-transition-fast), background-color var(--ds-transition-fast);
}

.announcement-close:hover {
  color: var(--ds-color-white);
  background-color: rgba(255, 255, 255, 0.1);
}

/* 2. Global Site Header */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--ds-header-height);
  background-color: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--ds-border-subtle);
  z-index: 100;
  transition: background-color var(--ds-transition-fast), border-color var(--ds-transition-fast), box-shadow var(--ds-transition-fast);
}

.site-header.is-scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--ds-shadow-sm);
  border-bottom-color: var(--ds-border-default);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* 3. Brand Logo */
.header-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  text-decoration: none;
}

.brand-logo-text {
  font-size: 1.25rem;
  font-weight: var(--ds-font-weight-bold);
  letter-spacing: -0.03em;
  color: var(--ds-text-primary);
  line-height: 1;
}

.header-logo:hover .brand-logo-text {
  color: var(--ds-brand-accent);
}

/* 4. Desktop Navigation & Mega Menu */
.desktop-navigation {
  display: flex;
  align-items: center;
  height: 100%;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 100%;
}

.nav-item {
  height: 100%;
  display: flex;
  align-items: center;
  position: static;
}

.nav-link {
  display: flex;
  align-items: center;
  height: 100%;
  font-size: 0.875rem;
  font-weight: var(--ds-font-weight-medium);
  color: var(--ds-text-secondary);
  transition: color var(--ds-transition-fast);
  position: relative;
}

.nav-link:hover,
.nav-item:hover > .nav-link {
  color: var(--ds-text-primary);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--ds-brand-accent);
  opacity: 0;
  transform: scaleX(0);
  transition: opacity var(--ds-transition-fast), transform var(--ds-transition-fast);
}

.nav-link:hover::after,
.nav-item:hover > .nav-link::after {
  opacity: 1;
  transform: scaleX(1);
}

/* Mega Menu Dropdown */
.mega-menu {
  position: absolute;
  top: var(--ds-header-height);
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--ds-border-default);
  box-shadow: var(--ds-shadow-lg);
  padding: 32px 0 40px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--ds-transition-fast), transform var(--ds-transition-fast), visibility var(--ds-transition-fast);
  z-index: 99;
}

.nav-item.has-dropdown:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-menu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr) 1.5fr;
  gap: 32px;
}

.mega-menu-column {
  display: flex;
  flex-direction: column;
}

.mega-menu-heading {
  font-size: 0.75rem;
  font-weight: var(--ds-font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ds-text-muted);
  margin-bottom: 14px;
}

.mega-submenu {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mega-submenu a {
  font-size: 0.875rem;
  color: var(--ds-text-primary);
  font-weight: var(--ds-font-weight-medium);
  transition: color var(--ds-transition-fast), transform var(--ds-transition-fast);
}

.mega-submenu a:hover {
  color: var(--ds-brand-accent);
  transform: translateX(4px);
}

.nav-featured-card {
  background-color: var(--ds-bg-surface-secondary);
  border: 1px solid var(--ds-border-subtle);
  border-radius: var(--ds-radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.nav-featured-card .card-tag {
  font-size: 0.6875rem;
  font-weight: var(--ds-font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ds-brand-accent);
  margin-bottom: 6px;
}

.nav-featured-card h4 {
  margin-bottom: 6px;
}

.nav-featured-card p {
  font-size: 0.8125rem;
  margin-bottom: 14px;
}

/* 5. Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.header-action-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--ds-radius-full);
  color: var(--ds-text-primary);
  transition: background-color var(--ds-transition-fast), color var(--ds-transition-fast);
}

.header-action-btn:hover {
  background-color: var(--ds-color-gray-100);
  color: var(--ds-brand-accent);
}

.header-action-btn .badge-count {
  position: absolute;
  top: 4px;
  right: 4px;
}

/* Mobile Toggle Trigger */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.hamburger-bar {
  width: 20px;
  height: 2px;
  background-color: var(--ds-text-primary);
  border-radius: 2px;
  transition: transform var(--ds-transition-fast), opacity var(--ds-transition-fast);
}

/* 6. Mobile Navigation Drawer */
.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 150;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--ds-transition-base), visibility var(--ds-transition-base);
}

.mobile-drawer-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 85%;
  max-width: 360px;
  background-color: var(--ds-bg-surface);
  z-index: 151;
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform var(--ds-transition-smooth);
  box-shadow: var(--ds-shadow-xl);
}

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

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--ds-border-subtle);
}

.mobile-drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav-link {
  display: block;
  font-size: 1.125rem;
  font-weight: var(--ds-font-weight-semibold);
  color: var(--ds-text-primary);
  padding: 10px 0;
  border-bottom: 1px solid var(--ds-border-subtle);
  transition: color var(--ds-transition-fast);
}

.mobile-nav-link:hover {
  color: var(--ds-brand-accent);
}

.mobile-drawer-footer {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mobile-help-link {
  font-size: 0.875rem;
  color: var(--ds-brand-accent);
  font-weight: var(--ds-font-weight-medium);
  text-align: center;
}

/* 7. Search Overlay Modal */
.search-modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 80px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--ds-transition-base), visibility var(--ds-transition-base);
}

.search-modal-backdrop.is-active {
  opacity: 1;
  visibility: visible;
}

.search-modal-dialog {
  width: 100%;
  max-width: 680px;
  margin: 0 16px;
  background-color: var(--ds-bg-surface);
  border-radius: var(--ds-radius-lg);
  box-shadow: var(--ds-shadow-xl);
  overflow: hidden;
  border: 1px solid var(--ds-border-default);
  transform: translateY(-20px);
  transition: transform var(--ds-transition-smooth);
}

.search-modal-backdrop.is-active .search-modal-dialog {
  transform: translateY(0);
}

.search-modal-header {
  display: flex;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--ds-border-subtle);
  gap: 12px;
}

.search-form-inline {
  flex: 1;
  display: flex;
  align-items: center;
  position: relative;
}

.search-input-icon {
  position: absolute;
  left: 12px;
  color: var(--ds-text-tertiary);
  pointer-events: none;
}

.search-modal-input {
  width: 100%;
  padding: 12px 36px 12px 42px;
  font-size: 1.0625rem;
  border: none;
  background-color: var(--ds-bg-surface-secondary);
  border-radius: var(--ds-radius-md);
  color: var(--ds-text-primary);
  outline: none;
}

.search-modal-input:focus {
  background-color: var(--ds-bg-surface);
  box-shadow: 0 0 0 2px var(--ds-brand-accent);
}

.search-clear-btn {
  position: absolute;
  right: 12px;
  font-size: 1.25rem;
  color: var(--ds-text-muted);
  line-height: 1;
}

.search-close-btn {
  font-size: 0.875rem;
  font-weight: var(--ds-font-weight-medium);
  color: var(--ds-text-secondary);
  padding: 8px 12px;
  border-radius: var(--ds-radius-sm);
  transition: background-color var(--ds-transition-fast), color var(--ds-transition-fast);
}

.search-close-btn:hover {
  background-color: var(--ds-color-gray-100);
  color: var(--ds-text-primary);
}

.search-modal-body {
  padding: 24px;
  max-height: 480px;
  overflow-y: auto;
}

.search-section-label {
  display: block;
  font-size: 0.75rem;
  font-weight: var(--ds-font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ds-text-muted);
  margin-bottom: 12px;
}

.search-tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.search-tag {
  display: inline-block;
  padding: 6px 12px;
  background-color: var(--ds-bg-surface-secondary);
  border: 1px solid var(--ds-border-subtle);
  border-radius: var(--ds-radius-full);
  font-size: 0.8125rem;
  color: var(--ds-text-secondary);
  transition: background-color var(--ds-transition-fast), color var(--ds-transition-fast), border-color var(--ds-transition-fast);
}

.search-tag:hover {
  background-color: var(--ds-color-gray-200);
  color: var(--ds-text-primary);
  border-color: var(--ds-border-strong);
}

/* 8. Slide-Out Cart Drawer */
.cart-drawer-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 160;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--ds-transition-base), visibility var(--ds-transition-base);
}

.cart-drawer-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 420px;
  background-color: var(--ds-bg-surface);
  z-index: 161;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--ds-transition-smooth);
  box-shadow: var(--ds-shadow-xl);
}

.cart-drawer.is-active {
  transform: translateX(0);
}

.cart-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--ds-border-subtle);
}

.cart-drawer-title {
  font-size: 1.125rem;
  font-weight: var(--ds-font-weight-semibold);
}

.cart-drawer-items {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

.cart-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 0;
  color: var(--ds-text-tertiary);
  gap: 16px;
}

.cart-drawer-item {
  display: flex;
  gap: 16px;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--ds-border-subtle);
}

.cart-drawer-item-img {
  width: 72px;
  height: 72px;
  border-radius: var(--ds-radius-sm);
  background-color: var(--ds-bg-surface-secondary);
  border: 1px solid var(--ds-border-subtle);
  object-fit: cover;
  flex-shrink: 0;
}

.cart-drawer-item-details {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.cart-drawer-item-title {
  font-size: 0.875rem;
  font-weight: var(--ds-font-weight-semibold);
  color: var(--ds-text-primary);
  margin-bottom: 4px;
}

.cart-drawer-item-variant {
  font-size: 0.75rem;
  color: var(--ds-text-tertiary);
  margin-bottom: 8px;
}

.cart-drawer-item-price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.cart-drawer-item-price {
  font-size: 0.875rem;
  font-weight: var(--ds-font-weight-bold);
  color: var(--ds-text-primary);
}

.cart-drawer-footer {
  padding: 24px;
  border-top: 1px solid var(--ds-border-subtle);
  background-color: var(--ds-bg-surface-secondary);
}

.cart-summary-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 1rem;
  font-weight: var(--ds-font-weight-semibold);
  margin-bottom: 8px;
}

.cart-subtotal-price {
  font-size: 1.125rem;
  font-weight: var(--ds-font-weight-bold);
}

.cart-tax-notice {
  font-size: 0.75rem;
  color: var(--ds-text-tertiary);
  margin-bottom: 16px;
}

.cart-drawer-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}