/* ==============================================================
   RESPONSIVE DESIGN SYSTEM (MOBILE, TABLET & DESKTOP)
   Sarees & Ethnic Wear E-Commerce
   ============================================================== */

/* Mobile Hamburger & Nav Drawer */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--color-brown);
}
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  left: -320px;
  width: 300px;
  height: 100vh;
  background: var(--color-white);
  z-index: 1050;
  box-shadow: 2px 0 20px rgba(0,0,0,0.15);
  transition: left 0.35s ease;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.mobile-nav-drawer.active {
  left: 0;
}
.drawer-header {
  padding: 20px;
  background: var(--color-maroon);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.drawer-header h3 {
  color: var(--color-gold-light);
  font-size: 1.1rem;
}
.drawer-close-btn {
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.4rem;
  cursor: pointer;
}
.drawer-menu {
  padding: 16px 0;
}
.drawer-menu a {
  display: block;
  padding: 12px 24px;
  font-size: 0.92rem;
  color: var(--color-brown);
  border-bottom: 1px solid rgba(232, 223, 209, 0.5);
  font-weight: 500;
}
.drawer-menu a:hover {
  background: var(--color-bg-soft);
  color: var(--color-maroon);
}

/* Breakpoint: Laptop / Small Desktop (max-width: 1200px) */
@media (max-width: 1200px) {
  .collections-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .occasions-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .price-brackets-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-top {
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  }
}

/* Breakpoint: Tablet (max-width: 992px) */
@media (max-width: 992px) {
  .mobile-nav-toggle {
    display: block;
  }
  .main-nav {
    display: none;
  }
  .header-search {
    order: 3;
    flex: 1 1 100%;
    margin-top: 12px;
  }
  .header-top {
    flex-wrap: wrap;
  }
  .hero-slide {
    min-height: 440px;
  }
  .hero-title {
    font-size: 2.4rem;
  }
  .collections-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
  .heritage-row {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .product-detail-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .gallery-container {
    flex-direction: column-reverse;
  }
  .gallery-thumbs {
    flex-direction: row;
    width: 100%;
    overflow-x: auto;
  }
  .thumb-btn {
    width: 72px;
    flex-shrink: 0;
  }
}

/* Breakpoint: Mobile (max-width: 768px) */
@media (max-width: 768px) {
  .announcement-bar {
    font-size: 0.75rem;
    padding: 7px 12px;
  }
  .brand-logo-text {
    font-size: 1.35rem;
    letter-spacing: 1px;
  }
  .brand-tagline {
    font-size: 0.62rem;
    letter-spacing: 2px;
  }
  .hero-title {
    font-size: 1.95rem;
  }
  .hero-subtitle {
    font-size: 0.95rem;
  }
  .section-title {
    font-size: 1.7rem;
  }
  .occasions-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .price-brackets-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  .newsletter-form {
    flex-direction: column;
  }
  .product-card .card-actions {
    grid-template-columns: 1fr;
  }

  /* Sticky Mobile Action Bar on Product Page */
  .mobile-sticky-action-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    padding: 10px 16px;
    box-shadow: 0 -4px 16px rgba(0,0,0,0.1);
    display: flex;
    gap: 10px;
    z-index: 99;
    border-top: 1px solid var(--color-border);
  }
  .mobile-sticky-action-bar .btn {
    flex: 1;
    padding: 12px 14px;
    font-size: 0.8rem;
  }
}

/* Breakpoint: Small Mobile (max-width: 480px) */
@media (max-width: 480px) {
  .collections-grid {
    grid-template-columns: 1fr;
  }
  .products-grid {
    grid-template-columns: 1fr;
  }
  .occasions-grid {
    grid-template-columns: 1fr;
  }
  .price-brackets-grid {
    grid-template-columns: 1fr;
  }
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
}