/**
 * OMEGA Sarajevo — UI Components
 * Buttons, cards, header, nav, drawers, filters, footer, etc.
 */

/* ════════════════════════════════════════════════════════════
   BUTTONS
   ════════════════════════════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: var(--btn-height-md);
  padding-inline: var(--btn-padding-x-md);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-color), var(--transition-shadow), var(--transition-transform);
  user-select: none;
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn--sm {
  height: var(--btn-height-sm);
  padding-inline: var(--btn-padding-x-sm);
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}

.btn--lg {
  height: var(--btn-height-lg);
  padding-inline: var(--btn-padding-x-lg);
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}

.btn--block {
  display: flex;
  width: 100%;
}

.btn--primary {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text-inverse);
}

.btn--primary:hover:not(:disabled) {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.btn--primary:active:not(:disabled) {
  background-color: var(--color-accent-active);
  border-color: var(--color-accent-active);
}

.btn--secondary {
  background-color: var(--color-surface-0);
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

.btn--secondary:hover:not(:disabled) {
  background-color: var(--color-surface-2);
  border-color: var(--color-border-strong);
}

.btn--ghost {
  background-color: transparent;
  border-color: transparent;
  color: var(--color-text-secondary);
}

.btn--ghost:hover:not(:disabled) {
  background-color: var(--color-surface-2);
  color: var(--color-text-primary);
}

.btn--outline {
  background-color: transparent;
  border-color: var(--color-border-strong);
  color: var(--color-text-primary);
}

.btn--outline:hover:not(:disabled) {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: var(--color-accent-subtle);
}

.btn--outline-accent {
  background-color: transparent;
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--outline-accent:hover:not(:disabled) {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
}

.btn--danger {
  background-color: var(--color-error);
  border-color: var(--color-error);
  color: var(--color-text-inverse);
}

.btn--danger:hover:not(:disabled) {
  background-color: #991b1b;
  border-color: #991b1b;
}

.btn--icon {
  width: var(--btn-height-md);
  padding-inline: 0;
}

.btn--icon.btn--sm {
  width: var(--btn-height-sm);
}

.btn--icon.btn--lg {
  width: var(--btn-height-lg);
}

.btn__icon {
  width: 1.125rem;
  height: 1.125rem;
  flex-shrink: 0;
}

.btn-group {
  display: inline-flex;
  gap: var(--space-2);
}

/* ════════════════════════════════════════════════════════════
   BADGES
   ════════════════════════════════════════════════════════════ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  height: var(--badge-height);
  padding-inline: var(--badge-padding-x);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  line-height: 1;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.badge--accent {
  background-color: var(--color-accent-subtle);
  color: var(--color-accent-hover);
  border: 1px solid var(--color-accent-border);
}

.badge--neutral {
  background-color: var(--color-surface-2);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.badge--success {
  background-color: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid var(--color-success-border);
}

.badge--warning {
  background-color: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid var(--color-warning-border);
}

.badge--error {
  background-color: var(--color-error-bg);
  color: var(--color-error);
  border: 1px solid var(--color-error-border);
}

.badge--info {
  background-color: var(--color-info-bg);
  color: var(--color-info);
  border: 1px solid var(--color-info-border);
}

.badge--sale {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  border: 1px solid var(--color-accent);
}

.badge--new {
  background-color: var(--color-text-primary);
  color: var(--color-text-inverse);
  border: 1px solid var(--color-text-primary);
}

.badge--dot::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: currentColor;
}

/* ════════════════════════════════════════════════════════════
   PRICE & STOCK
   ════════════════════════════════════════════════════════════ */

.price {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
  font-variant-numeric: tabular-nums;
}

.price__current {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  letter-spacing: var(--tracking-tight);
}

.price__current--lg { font-size: var(--text-2xl); }
.price__current--xl { font-size: var(--text-3xl); }

.price__original {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.price__unit {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: var(--weight-regular);
}

.price__note {
  width: 100%;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.price--on-sale .price__current {
  color: var(--color-accent-hover);
}

.stock {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1-5);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
}

.stock__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.stock--in .stock__dot { background-color: var(--color-stock-in); }
.stock--in { color: var(--color-stock-in); }
.stock--low .stock__dot { background-color: var(--color-stock-low); }
.stock--low { color: var(--color-stock-low); }
.stock--out .stock__dot { background-color: var(--color-stock-out); }
.stock--out { color: var(--color-stock-out); }
.stock--preorder .stock__dot { background-color: var(--color-stock-preorder); }
.stock--preorder { color: var(--color-stock-preorder); }

/* ════════════════════════════════════════════════════════════
   PRODUCT CARD
   ════════════════════════════════════════════════════════════ */

.product-card {
  display: flex;
  flex-direction: column;
  background-color: var(--card-bg);
  border: var(--card-border);
  border-radius: var(--card-radius);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-normal);
}

.product-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-sm);
}

.product-card__media {
  position: relative;
  aspect-ratio: var(--product-image-ratio);
  background-color: var(--color-surface-inset);
  overflow: hidden;
}

.product-card__link {
  display: block;
  width: 100%;
  height: 100%;
}

.product-card__image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--space-4);
  transition: transform var(--transition-normal);
}

.product-card:hover .product-card__image {
  transform: scale(1.03);
}

.product-card__badges {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  z-index: 1;
}

.product-card__actions {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  opacity: 0;
  transform: translateX(4px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.product-card:hover .product-card__actions,
.product-card:focus-within .product-card__actions {
  opacity: 1;
  transform: translateX(0);
}

.product-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--card-padding);
  flex: 1;
}

.product-card__brand {
  font-family: var(--font-secondary);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.product-card__title {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  line-height: var(--leading-snug);
  color: var(--color-text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: var(--transition-color);
}

.product-card__title:hover {
  color: var(--color-accent);
}

.product-card__sku {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.product-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-2);
}

.product-card__footer {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--card-padding);
  border-top: 1px solid var(--color-border-subtle);
  background-color: var(--color-surface-1);
}

.product-card__footer .btn {
  flex: 1;
}

.product-card--horizontal {
  flex-direction: row;
}

.product-card--horizontal .product-card__media {
  width: 7rem;
  flex-shrink: 0;
  aspect-ratio: 1;
}

/* ════════════════════════════════════════════════════════════
   CATEGORY CARD
   ════════════════════════════════════════════════════════════ */

.category-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-surface-0);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-normal);
}

.category-card:hover {
  border-color: var(--color-accent-border);
  box-shadow: var(--shadow-sm);
}

.category-card__link {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.category-card__media {
  aspect-ratio: 4 / 3;
  background-color: var(--color-surface-inset);
  overflow: hidden;
}

.category-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.category-card:hover .category-card__image {
  transform: scale(1.03);
}

.category-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4);
  flex: 1;
}

.category-card__title {
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  transition: var(--transition-color);
}

.category-card:hover .category-card__title {
  color: var(--color-accent);
}

.category-card__count {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.category-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-snug);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.category-card--icon {
  align-items: center;
  text-align: center;
  padding: var(--space-5);
}

.category-card--icon .category-card__icon {
  width: 2.5rem;
  height: 2.5rem;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

/* ════════════════════════════════════════════════════════════
   SITE HEADER & TOPBAR
   ════════════════════════════════════════════════════════════ */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background-color: var(--color-surface-0);
  border-bottom: 1px solid var(--color-border);
}

.topbar {
  height: var(--topbar-height);
  background-color: var(--color-text-primary);
  color: var(--color-text-inverse);
  font-size: var(--text-xs);
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-4);
}

.topbar__message {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--weight-medium);
}

.topbar__message strong {
  color: var(--color-accent-muted);
}

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

.topbar__link {
  color: rgba(255, 255, 255, 0.75);
  transition: var(--transition-color);
}

.topbar__link:hover {
  color: var(--color-text-inverse);
}

.header-main {
  height: var(--header-height);
}

.header-main__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-6);
  height: 100%;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.site-logo__mark {
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  border-radius: var(--radius-md);
  letter-spacing: var(--tracking-tight);
}

.site-logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.site-logo__name {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-primary);
}

.site-logo__tagline {
  font-family: var(--font-secondary);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.header-search {
  position: relative;
  max-width: 36rem;
  width: 100%;
  justify-self: center;
}

.header-search__form {
  display: flex;
  align-items: stretch;
  height: var(--input-height-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-surface-1);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.header-search__form:focus-within {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-subtle);
  background-color: var(--color-white);
}

.header-search__input {
  flex: 1;
  border: none;
  background: transparent;
  padding-inline: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  min-width: 0;
}

.header-search__input::placeholder {
  color: var(--color-text-muted);
}

.header-search__input:focus {
  outline: none;
}

.header-search__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  border: none;
  flex-shrink: 0;
  transition: background-color var(--transition-fast);
}

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

.header-search__btn svg {
  width: 1.125rem;
  height: 1.125rem;
}

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

.header-action {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-0-5);
  padding: var(--space-2);
  min-width: 3.5rem;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: var(--transition-color), background-color var(--transition-fast);
}

.header-action:hover {
  color: var(--color-text-primary);
  background-color: var(--color-surface-2);
}

.header-action__icon {
  width: 1.375rem;
  height: 1.375rem;
}

.header-action__label {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
}

.header-action__badge {
  position: absolute;
  top: 0.25rem;
  right: 0.375rem;
  min-width: 1.125rem;
  height: 1.125rem;
  padding-inline: var(--space-1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.625rem;
  font-weight: var(--weight-bold);
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  border-radius: var(--radius-full);
  line-height: 1;
}

.header-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  color: var(--color-text-primary);
  border-radius: var(--radius-md);
}

.header-menu-toggle:hover {
  background-color: var(--color-surface-2);
}

/* Category Nav */
.site-nav {
  height: var(--nav-height);
  background-color: var(--color-surface-0);
  border-top: 1px solid var(--color-border-subtle);
}

.site-nav__inner {
  display: flex;
  align-items: stretch;
  height: 100%;
  gap: var(--space-1);
}

.site-nav__list {
  display: flex;
  align-items: stretch;
  gap: var(--space-0-5);
  height: 100%;
}

.site-nav__item {
  position: relative;
  display: flex;
  align-items: stretch;
}

.site-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-1-5);
  padding-inline: var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: var(--transition-color), border-color var(--transition-fast);
}

.site-nav__link:hover,
.site-nav__item.is-open .site-nav__link,
.site-nav__link[aria-current="page"] {
  color: var(--color-text-primary);
  border-bottom-color: var(--color-accent);
}

.site-nav__all {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding-inline: var(--space-4);
  margin-right: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-inverse);
  background-color: var(--color-text-primary);
  border-radius: var(--radius-sm);
  align-self: center;
  height: calc(var(--nav-height) - var(--space-3));
  transition: background-color var(--transition-fast);
}

.site-nav__all:hover {
  background-color: #2d3139;
}

/* Mega Menu */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: var(--z-dropdown);
  background-color: var(--color-surface-0);
  border: 1px solid var(--color-border);
  border-top: 2px solid var(--color-accent);
  box-shadow: var(--shadow-dropdown);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.site-nav__item.is-open .mega-menu,
.mega-menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-menu__inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  padding: var(--space-6);
}

.mega-menu__column {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.mega-menu__heading {
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-text-primary);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border-subtle);
}

.mega-menu__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.mega-menu__link {
  display: block;
  padding: var(--space-1-5) 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: var(--transition-color);
}

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

.mega-menu__featured {
  padding: var(--space-4);
  background-color: var(--color-surface-muted);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-subtle);
}

/* Search Dropdown */
.search-dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 0;
  right: 0;
  z-index: var(--z-dropdown);
  background-color: var(--color-surface-0);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-dropdown);
  max-height: var(--search-dropdown-max-height);
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

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

.search-dropdown__section {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border-subtle);
}

.search-dropdown__heading {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.search-dropdown__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.search-dropdown__item:hover,
.search-dropdown__item.is-active {
  background-color: var(--color-surface-2);
}

.search-dropdown__thumb {
  width: 2.5rem;
  height: 2.5rem;
  object-fit: contain;
  background-color: var(--color-surface-inset);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.search-dropdown__info {
  flex: 1;
  min-width: 0;
}

.search-dropdown__title {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-dropdown__meta {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.search-dropdown__footer {
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-surface-1);
  text-align: center;
}

/* Cart Drawer */
.drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background-color: var(--color-overlay);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

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

.cart-drawer {
  position: fixed;
  inset: 0;
  z-index: var(--z-drawer);
  pointer-events: none;
  visibility: hidden;
  background: transparent;
  width: auto;
  max-width: none;
  transform: none;
  box-shadow: none;
}

.cart-drawer.is-open {
  pointer-events: auto;
  visibility: visible;
}

.cart-drawer__panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: var(--cart-drawer-width);
  background-color: var(--color-surface-0);
  box-shadow: var(--shadow-drawer);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}

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

.cart-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.cart-drawer__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
}

.cart-drawer__count {
  font-weight: var(--weight-regular);
  color: var(--color-text-muted);
}

.cart-drawer__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: var(--transition-color), background-color var(--transition-fast);
}

.cart-drawer__close:hover {
  color: var(--color-text-primary);
  background-color: var(--color-surface-2);
}

.cart-drawer__body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4) var(--space-5);
}

.cart-drawer__items {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.cart-item {
  display: grid;
  grid-template-columns: 4rem 1fr auto;
  gap: var(--space-3);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-subtle);
}

.cart-item__image {
  width: 4rem;
  height: 4rem;
  object-fit: contain;
  background-color: var(--color-surface-inset);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
}

.cart-item__title {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  line-height: var(--leading-snug);
}

.cart-item__sku {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.cart-item__price {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
}

.cart-item__remove {
  color: var(--color-text-muted);
  padding: var(--space-1);
  transition: var(--transition-color);
}

.cart-item__remove:hover {
  color: var(--color-error);
}

.cart-drawer__footer {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface-1);
}

.cart-drawer__subtotal {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--space-4);
}

.cart-drawer__subtotal-value {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
}

.cart-drawer__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: var(--space-4);
  right: var(--space-4);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 24rem;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-text-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: toast-in var(--transition-slow) var(--ease-out);
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.toast--success { background-color: var(--color-success); }
.toast--error { background-color: var(--color-error); }

.toast__title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
}

.toast__message {
  font-size: var(--text-xs);
  opacity: 0.85;
  margin-top: var(--space-0-5);
}

/* Tabs */
.tabs__list {
  display: flex;
  gap: var(--space-0-5);
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
}

.tabs__tab {
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: var(--transition-color), border-color var(--transition-fast);
}

.tabs__tab.is-active,
.tabs__tab[aria-selected="true"] {
  color: var(--color-text-primary);
  border-bottom-color: var(--color-accent);
}

.tabs__panel {
  padding-block: var(--space-6);
}

.tabs__panel[hidden] {
  display: none;
}

/* Accordion */
.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.accordion__item + .accordion__item {
  border-top: 1px solid var(--color-border);
}

.accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  text-align: left;
  background-color: var(--color-surface-0);
  transition: background-color var(--transition-fast);
}

.accordion__trigger:hover {
  background-color: var(--color-surface-1);
}

.accordion__icon {
  width: 1rem;
  height: 1rem;
  color: var(--color-text-muted);
  transition: transform var(--transition-fast);
}

.accordion__item.is-open .accordion__icon {
  transform: rotate(180deg);
}

.accordion__panel {
  padding: 0 var(--space-4) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

.accordion__panel[hidden] {
  display: none;
}

/* Filters */
.filter-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.filter-group__title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border-subtle);
}

.filter-group__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.filter-option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
}

.filter-option__count {
  margin-left: auto;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1-5);
  height: 1.75rem;
  padding-inline: var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  background-color: var(--color-surface-0);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  transition: var(--transition-color), border-color var(--transition-fast);
  cursor: pointer;
}

.filter-chip.is-active {
  background-color: var(--color-accent-subtle);
  border-color: var(--color-accent-border);
  color: var(--color-accent-hover);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-surface-0);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
}

.filter-bar__sort {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.filter-bar__sort select {
  height: var(--btn-height-sm);
  padding-inline: var(--space-3);
  font-size: var(--text-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface-0);
}

.filter-toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  height: var(--btn-height-md);
  padding-inline: var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface-0);
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  margin-top: var(--space-8);
}

.pagination__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  height: 2.25rem;
  padding-inline: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  background-color: var(--color-surface-0);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: var(--transition-color), border-color var(--transition-fast);
}

.pagination__btn:hover:not(:disabled) {
  color: var(--color-text-primary);
  border-color: var(--color-border-strong);
}

.pagination__btn.is-active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text-inverse);
}

.pagination__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Quantity Picker */
.qty-picker {
  display: inline-flex;
  align-items: stretch;
  height: var(--btn-height-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-surface-0);
}

.qty-picker__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  color: var(--color-text-secondary);
  background-color: var(--color-surface-1);
  transition: var(--transition-color), background-color var(--transition-fast);
}

.qty-picker__btn:hover:not(:disabled) {
  color: var(--color-text-primary);
  background-color: var(--color-surface-2);
}

.qty-picker__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.qty-picker__input {
  width: 2.75rem;
  text-align: center;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  border: none;
  border-left: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  background: transparent;
  -moz-appearance: textfield;
}

.qty-picker__input::-webkit-outer-spin-button,
.qty-picker__input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.qty-picker--sm { height: var(--btn-height-sm); }
.qty-picker--lg { height: var(--btn-height-lg); }

/* Spec Table */
.spec-table {
  width: 100%;
  font-size: var(--text-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.spec-table tr:nth-child(even) {
  background-color: var(--color-surface-1);
}

.spec-table th,
.spec-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border-subtle);
}

.spec-table tr:last-child th,
.spec-table tr:last-child td {
  border-bottom: none;
}

.spec-table th {
  width: 40%;
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
}

.spec-table td {
  font-weight: var(--weight-medium);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background-color: var(--color-scrim);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.modal {
  position: relative;
  width: 100%;
  max-width: 32rem;
  max-height: calc(100vh - var(--space-8));
  background-color: var(--color-surface-0);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  transform: scale(0.96) translateY(8px);
  transition: transform var(--transition-slow);
}

.modal-overlay.is-open .modal {
  transform: scale(1) translateY(0);
}

.modal--lg { max-width: 48rem; }

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-border-subtle);
}

.modal__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
}

.modal__body {
  padding: var(--space-6);
  overflow-y: auto;
  flex: 1;
}

.modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border-subtle);
  background-color: var(--color-surface-1);
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-12) var(--space-6);
}

.empty-state__icon {
  width: 3.5rem;
  height: 3.5rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.empty-state__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-2);
}

.empty-state__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  max-width: 24rem;
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

/* Sticky Mobile ATC */
.sticky-atc {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  display: none;
  align-items: center;
  gap: var(--space-3);
  height: var(--sticky-atc-height);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-surface-0);
  border-top: 1px solid var(--color-border);
  box-shadow: var(--shadow-sticky);
}

.sticky-atc__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
  justify-content: flex-end;
}

/* Brands Wall */
.brands-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(8rem, 1fr));
  gap: var(--space-3);
}

.brands-wall__item {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 4rem;
  padding: var(--space-3);
  background-color: var(--color-surface-0);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-normal);
}

.brands-wall__item:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-xs);
}

.brands-wall__logo {
  max-width: 100%;
  max-height: 2rem;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.65;
  transition: filter var(--transition-fast), opacity var(--transition-fast);
}

.brands-wall__item:hover .brands-wall__logo {
  filter: grayscale(0%);
  opacity: 1;
}

/* Benefits Strip */
.benefits-strip {
  display: block;
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface-0);
}

.benefits-strip__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.benefit {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-1);
  min-width: 0;
}

.benefit__icon {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.benefit__title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-0-5);
}

.benefit__desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: var(--leading-snug);
}

.benefits-strip--bordered {
  border-block: 1px solid var(--color-border);
  background-color: var(--color-surface-0);
}

/* Promo Banner */
.promo-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  background-color: var(--color-accent-subtle);
  border: 1px solid var(--color-accent-border);
  border-radius: var(--radius-lg);
}

.promo-banner__text {
  font-size: var(--text-sm);
}

.promo-banner__text strong {
  color: var(--color-accent-hover);
}

.promo-banner__code {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  padding: var(--space-1) var(--space-2);
  background-color: var(--color-surface-0);
  border: 1px dashed var(--color-accent-border);
  border-radius: var(--radius-sm);
  color: var(--color-accent-hover);
}

.promo-banner--dark {
  background-color: var(--color-text-primary);
  border-color: var(--color-text-primary);
  color: var(--color-text-inverse);
}

/* B2B CTA */
.b2b-cta {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-8);
  background-color: var(--color-surface-0);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.b2b-cta__eyebrow {
  font-family: var(--font-secondary);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-accent);
}

.b2b-cta__title {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
}

.b2b-cta__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  max-width: 32rem;
  line-height: var(--leading-relaxed);
}

.b2b-cta__features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-3);
}

.b2b-cta__feature {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.b2b-cta__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* Why Omega */
.why-omega {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.why-card {
  padding: var(--space-5);
  background-color: var(--color-surface-0);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition-fast), box-shadow var(--transition-normal);
}

.why-card:hover {
  border-color: var(--color-accent-border);
  box-shadow: var(--shadow-sm);
}

.why-card__number {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.why-card__icon {
  width: 2rem;
  height: 2rem;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.why-card__title {
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-2);
}

.why-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

/* Footer */
.site-footer {
  background-color: var(--color-text-primary);
  color: rgba(255, 255, 255, 0.75);
  margin-top: auto;
}

.site-footer__main {
  padding-block: var(--space-12);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--space-8);
}

.site-footer__logo-mark {
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  border-radius: var(--radius-sm);
}

.site-footer__logo-name {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-text-inverse);
}

.site-footer__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  max-width: 20rem;
}

.site-footer__column-title {
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-text-inverse);
  margin-bottom: var(--space-4);
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2-5);
}

.site-footer__link {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.65);
  transition: var(--transition-color);
}

.site-footer__link:hover {
  color: var(--color-text-inverse);
}

.site-footer__bottom {
  padding-block: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.site-footer__bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.5);
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.site-footer__legal a {
  color: rgba(255, 255, 255, 0.5);
  transition: var(--transition-color);
}

.site-footer__legal a:hover {
  color: rgba(255, 255, 255, 0.85);
}