/* ==========================================================================
   LAYOUT — Grid, Responsive, Sections
   ========================================================================== */

/* ── Header ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  height: var(--header-height);
  transition: all var(--duration-normal) var(--ease-out);
}

.site-header--transparent {
  background: transparent;
}

.site-header--solid {
  background: rgba(13, 13, 13, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-2xl);
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.header-logo img {
  height: 48px;
  width: auto;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.header-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.header-nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--duration-fast) var(--ease-out);
}

.header-nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--duration-normal) var(--ease-out);
}

.header-nav__link:hover,
.header-nav__link--active {
  color: var(--color-primary);
}

.header-nav__link:hover::after,
.header-nav__link--active::after {
  width: 100%;
}

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

.header-action-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-white);
  transition: color var(--duration-fast) var(--ease-out);
}

.header-action-btn:hover {
  color: var(--color-primary);
}

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

.cart-count {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 16px;
  height: 16px;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
}

/* ── Mobile Menu Toggle ── */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  height: 28px;
  justify-content: center;
  cursor: pointer;
  z-index: calc(var(--z-overlay) + 1);
}

.mobile-menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--duration-normal) var(--ease-out);
  transform-origin: center;
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ── Mobile Navigation ── */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 380px;
  height: 100vh;
  background: var(--color-dark);
  z-index: var(--z-overlay);
  transition: right var(--duration-slow) var(--ease-out);
  padding: calc(var(--header-height-mobile) + var(--space-8)) var(--space-8) var(--space-8);
  overflow-y: auto;
}

.mobile-nav.active {
  right: 0;
}

.mobile-nav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: calc(var(--z-overlay) - 1);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

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

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

.mobile-nav__link {
  display: block;
  padding: var(--space-4) 0;
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-white);
  border-bottom: 1px solid var(--color-dark-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

.mobile-nav__link:hover {
  color: var(--color-primary);
}

/* ── Mini Cart Drawer ── */
.mini-cart {
  position: fixed;
  top: 0;
  right: -100%;
  width: 400px;
  max-width: 90vw;
  height: 100vh;
  background: var(--color-white);
  z-index: var(--z-modal);
  transition: right var(--duration-slow) var(--ease-out);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
}

.mini-cart.active {
  right: 0;
}

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

.mini-cart__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
}

.mini-cart__close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-500);
  transition: color var(--duration-fast) var(--ease-out);
}

.mini-cart__close:hover {
  color: var(--color-dark);
}

.mini-cart__items {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4) var(--space-6);
}

.mini-cart__item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-gray-100);
}

.mini-cart__item-image {
  width: 72px;
  height: 90px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  background: var(--color-gray-100);
}

.mini-cart__item-details {
  flex: 1;
}

.mini-cart__item-name {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-dark);
  margin-bottom: var(--space-1);
}

.mini-cart__item-price {
  font-weight: 700;
  color: var(--color-dark);
}

.mini-cart__footer {
  padding: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.mini-cart__total {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  font-size: var(--text-lg);
  font-weight: 700;
}

/* ── Hero Section ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-dark);
}

.hero__bg {
  position: absolute;
  inset: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 650px;
  padding: var(--space-16) 0;
}

.hero__subtitle {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-6xl);
  font-weight: 700;
  color: var(--color-white);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-6);
}

.hero__title em {
  color: var(--color-primary);
  font-style: normal;
}

.hero__desc {
  font-size: var(--text-lg);
  color: var(--color-gray-300);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
  max-width: 500px;
}

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

/* ── Section Spacing ── */
.section {
  padding: var(--space-20) 0;
}

.section--dark {
  background: var(--color-dark);
  color: var(--color-white);
}

.section--dark .section-title {
  color: var(--color-white);
}

.section--dark .section-desc {
  color: var(--color-gray-300);
}

.section--gray {
  background: var(--color-gray-100);
}

/* ── Product Grid ── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

/* ── Category Grid ── */
.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

/* ── Shop Layout ── */
.shop-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--space-8);
  padding: var(--space-8) 0;
}

.shop-sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-6));
  align-self: start;
}

.shop-content {
  min-width: 0;
}

/* ── Shop Toolbar ── */
.shop-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.shop-toolbar__count {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.shop-toolbar__sort {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.shop-toolbar__sort select {
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-dark);
  font-size: var(--text-sm);
  cursor: pointer;
}

/* ── Shop Filters Sidebar ── */
.filter-group {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.filter-group:last-child {
  border-bottom: none;
}

.filter-group__title {
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-dark);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

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

.filter-group__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  cursor: pointer;
  transition: color var(--duration-fast) var(--ease-out);
}

.filter-group__item:hover {
  color: var(--color-primary);
}

.filter-group__item input[type="checkbox"] {
  accent-color: var(--color-primary);
}

/* ── Price Range ── */
.price-range {
  padding: var(--space-2) 0;
}

.price-range input[type="range"] {
  width: 100%;
  accent-color: var(--color-primary);
}

.price-range__values {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  margin-top: var(--space-2);
}

/* ── Features Bar ── */
.features-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  padding: var(--space-8) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

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

.feature-item__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-subtle);
  border-radius: var(--radius-full);
  color: var(--color-primary);
  flex-shrink: 0;
}

.feature-item__icon svg {
  width: 24px;
  height: 24px;
}

.feature-item__text strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 2px;
}

.feature-item__text span {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

/* ── Promo Banner ── */
.promo-banner {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 400px;
  display: flex;
  align-items: center;
}

.promo-banner__bg {
  position: absolute;
  inset: 0;
}

.promo-banner__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.promo-banner__content {
  position: relative;
  z-index: 2;
  padding: var(--space-12);
  max-width: 500px;
}

/* ── Testimonials Slider ── */
.testimonials-slider {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

/* ── Footer ── */
.site-footer {
  background: var(--color-dark);
  color: var(--color-white);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-10);
  padding: var(--space-16) 0;
}

.footer-col__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-6);
}

.footer-col__desc {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

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

.footer-col__link {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  transition: color var(--duration-fast) var(--ease-out);
}

.footer-col__link:hover {
  color: var(--color-primary);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social__link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-dark-muted);
  border-radius: var(--radius-full);
  color: var(--color-gray-400);
  transition: all var(--duration-fast) var(--ease-out);
}

.footer-social__link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(91, 154, 139, 0.1);
}

.footer-social__link svg {
  width: 18px;
  height: 18px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6) 0;
  border-top: 1px solid var(--color-dark-muted);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.footer-payments {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.footer-payments img {
  height: 24px;
  opacity: 0.5;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.footer-payments img:hover {
  opacity: 1;
}

/* ── Pagination ── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-10);
}

.pagination__link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-dark);
  transition: all var(--duration-fast) var(--ease-out);
}

.pagination__link:hover,
.pagination__link--active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 1023px) {
  .header-nav {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .shop-layout {
    grid-template-columns: 1fr;
  }

  .shop-sidebar {
    position: static;
  }

  .features-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials-slider {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-main {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  :root {
    --header-height: var(--header-height-mobile);
  }

  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
  h3 { font-size: var(--text-xl); }

  .container {
    padding: 0 var(--space-4);
  }

  .section {
    padding: var(--space-12) 0;
  }

  .hero__title {
    font-size: var(--text-4xl);
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }

  .category-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }

  .features-bar {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .testimonials-slider {
    grid-template-columns: 1fr;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }

  .section-title {
    font-size: var(--text-2xl);
  }

  .newsletter-form {
    flex-direction: column;
  }

  .shop-toolbar {
    flex-direction: column;
    gap: var(--space-3);
    align-items: flex-start;
  }

  .header-inner {
    padding: 0 var(--space-4);
  }

  .header-logo img {
    height: 36px;
  }

  .mini-cart {
    width: 100%;
    max-width: none;
  }

  .promo-banner {
    min-height: 300px;
  }

  .promo-banner__content {
    padding: var(--space-6);
  }
}

@media (max-width: 479px) {
  .product-grid {
    grid-template-columns: 1fr;
    max-width: 320px;
    margin: 0 auto;
  }
}

/* ── Print ── */
@media print {
  .site-header,
  .site-footer,
  .mini-cart,
  .mobile-nav {
    display: none !important;
  }

  body {
    color: #000;
    background: #fff;
  }
}