/**
 * Responsive Stylesheet
 * Premium Jewellery E-Commerce
 */

/* Mobile Nav Drawer Styles */
.mobile-nav-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--text-primary);
  background: transparent;
  cursor: pointer;
}

.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(2px);
  z-index: 2500;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

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

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 85%;
  max-width: 340px;
  background: #FFFFFF;
  z-index: 2600;
  transform: translateX(-100%);
  transition: transform 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}

.mobile-drawer-overlay.open .mobile-drawer {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.drawer-header .site-logo {
  font-size: 1.6rem;
}

.drawer-close-btn {
  font-size: 1.5rem;
  color: var(--text-muted);
}

.drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 0;
}

.drawer-nav-item {
  border-bottom: 1px solid var(--border-light);
}

.drawer-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-primary);
}

.drawer-subnav {
  background: var(--bg-secondary);
  display: none;
  padding: 0.5rem 0;
}

.drawer-subnav.open {
  display: block;
}

.drawer-subnav a {
  display: block;
  padding: 0.6rem 2rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.drawer-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-primary);
}

/* Media Queries */

/* Tablet & Mobile (<= 1024px) */
@media (max-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem 1rem;
  }

  .nav-menu {
    display: none;
  }

  .mobile-nav-toggle {
    display: block;
  }

  .header-main {
    padding: 1rem 0;
  }

  .site-logo {
    font-size: 1.8rem;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .editorial-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

/* Mobile Devices (<= 768px) */
@media (max-width: 768px) {
  .search-bar-wrap {
    display: none;
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem 0.85rem;
  }

  .product-detail-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .gallery-container {
    flex-direction: column-reverse;
  }

  .gallery-thumbs {
    flex-direction: row;
    width: 100%;
    overflow-x: auto;
  }

  .gallery-thumb-item {
    width: 75px;
    flex-shrink: 0;
  }

  .btn-group-main {
    grid-template-columns: 1fr;
  }

  .hero-slide {
    min-height: 460px;
  }

  .hero-content {
    padding: 2.5rem 0;
  }

  .section {
    padding: 3.5rem 0;
  }

  .cart-table th, .cart-table td {
    padding: 0.75rem 0.5rem;
  }

  .cart-product-cell {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .cart-thumb {
    width: 50px;
    height: 50px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* Small Mobile (<= 480px) */
@media (max-width: 480px) {
  .site-logo {
    font-size: 1.45rem;
    letter-spacing: 0.18em;
  }

  .header-right {
    gap: 1rem;
  }

  .announcement-bar {
    font-size: 0.65rem;
    padding: 0.4rem 0.5rem;
  }

  .product-name {
    font-size: 1rem;
  }

  .price-current {
    font-size: 0.95rem;
  }

  .product-card-btns {
    grid-template-columns: 1fr;
  }
}