/* ===== LUMIÈRE JEWELS - Luxury Jewelry Store ===== */

/* CSS Variables */
:root {
  --gold: #D4AF37;
  --gold-dark: #B8860B;
  --gold-light: #E8C547;
  --rose-gold: #B76E79;
  --bg-primary: #0d0d0d;
  --bg-secondary: #1a1a1a;
  --bg-card: #222222;
  --text-primary: #f5f5f5;
  --text-secondary: #a0a0a0;
  --text-muted: #666666;
  --border: #333333;
  --shadow: rgba(0, 0, 0, 0.4);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

h1, h2, h3, h4, h5 {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 600;
  line-height: 1.3;
}

a {
  color: var(--gold);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--gold-light);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ===== NAVIGATION ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 13, 13, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.nav-brand span {
  color: var(--text-primary);
  font-weight: 300;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--gold);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.cart-link {
  position: relative;
}

.cart-badge {
  position: absolute;
  top: -8px;
  right: -12px;
  background: var(--gold);
  color: var(--bg-primary);
  font-size: 0.7rem;
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.menu-toggle span {
  width: 25px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

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

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

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

/* ===== HERO SECTION ===== */
.hero {
  height: 90vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, rgba(13,13,13,0.9), rgba(26,26,26,0.8)),
              url('https://images.unsplash.com/photo-1515562141589-67f0d727b750?w=1920&q=80') center/cover;
  padding: 2rem;
  position: relative;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 150px;
  background: linear-gradient(transparent, var(--bg-primary));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--gold-light), var(--gold), var(--rose-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== BUTTONS ===== */
.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: 4px;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: 'Inter', sans-serif;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--bg-primary);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
  color: var(--bg-primary);
}

.btn-secondary {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--gold);
}

.btn-secondary:hover {
  background: var(--gold);
  color: var(--bg-primary);
}

/* ===== SECTIONS ===== */
.section {
  padding: 5rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.gold-line {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--rose-gold));
  margin: 1rem auto;
  border-radius: 2px;
}

/* ===== PRODUCT GRID ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

.product-card {
  background: var(--bg-card);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: block;
  color: var(--text-primary);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px var(--shadow);
  border-color: var(--gold-dark);
}

.product-image {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.product-card:hover .product-image img {
  transform: scale(1.05);
}

.product-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.product-card:hover .product-overlay {
  opacity: 1;
}

.view-btn {
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: 4px;
}

.product-info {
  padding: 1.25rem;
}

.product-category {
  font-size: 0.75rem;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
}

.product-name {
  font-size: 1.1rem;
  margin: 0.5rem 0;
  font-weight: 500;
}

.product-price {
  font-size: 1.25rem;
  color: var(--gold-light);
  font-weight: 600;
}

/* ===== FILTERS ===== */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: 30px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
  text-transform: capitalize;
  font-family: 'Inter', sans-serif;
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(212, 175, 55, 0.1);
}

/* Search */
.search-bar {
  max-width: 500px;
  margin: 0 auto 3rem;
  position: relative;
}

.search-bar input {
  width: 100%;
  padding: 0.875rem 1.25rem;
  padding-right: 3rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 30px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
}

.search-bar input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.search-bar input::placeholder {
  color: var(--text-muted);
}

.search-bar button {
  position: absolute;
  right: 4px;
  top: 4px;
  bottom: 4px;
  padding: 0 1.25rem;
  background: var(--gold);
  border: none;
  border-radius: 30px;
  color: var(--bg-primary);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  transition: var(--transition);
}

/* ===== PRODUCT DETAIL ===== */
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 100px;
  padding: 2rem;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.main-image {
  aspect-ratio: 1;
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-card);
}

.main-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumbnail-strip {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.thumbnail {
  width: 70px;
  height: 70px;
  border-radius: 8px;
  object-fit: cover;
  cursor: pointer;
  border: 2px solid transparent;
  opacity: 0.6;
  transition: var(--transition);
}

.thumbnail:hover,
.thumbnail.active {
  border-color: var(--gold);
  opacity: 1;
}

.product-detail-info {
  padding-top: 1rem;
}

.product-category-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(212, 175, 55, 0.15);
  color: var(--gold);
  border-radius: 20px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  margin-bottom: 1rem;
}

.product-detail-info h1 {
  font-size: 2.25rem;
  margin-bottom: 0.75rem;
}

.product-detail-price {
  font-size: 2rem;
  color: var(--gold-light);
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.product-description {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.product-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.tag {
  padding: 0.25rem 0.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.product-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 2rem;
}

.quantity-selector {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.quantity-selector button {
  width: 40px;
  height: 40px;
  background: var(--bg-card);
  border: none;
  color: var(--text-primary);
  font-size: 1.25rem;
  cursor: pointer;
  transition: var(--transition);
}

.quantity-selector button:hover {
  background: var(--gold);
  color: var(--bg-primary);
}

.quantity-selector input,
.quantity-selector span {
  width: 50px;
  text-align: center;
  background: var(--bg-secondary);
  border: none;
  color: var(--text-primary);
  font-size: 1rem;
  height: 40px;
  line-height: 40px;
}

.quantity-selector input:focus {
  outline: none;
}

.quantity-selector.small button {
  width: 30px;
  height: 30px;
  font-size: 1rem;
}

.quantity-selector.small span {
  width: 35px;
  height: 30px;
  line-height: 30px;
  font-size: 0.9rem;
}

.btn-add-cart {
  flex: 1;
  justify-content: center;
  padding: 1rem;
}

.back-link {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.back-link:hover {
  color: var(--gold);
}

/* ===== CART PAGE ===== */
.cart-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 3rem;
  margin-top: 100px;
  padding: 2rem;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.cart-item {
  display: grid;
  grid-template-columns: 100px 1fr auto auto;
  gap: 1.5rem;
  align-items: center;
  padding: 1.5rem;
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-bottom: 1rem;
}

.cart-item-image {
  width: 100px;
  height: 100px;
  border-radius: 8px;
  overflow: hidden;
}

.cart-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-item-details h3 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.cart-item-category {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: capitalize;
  margin-bottom: 0.25rem;
}

.cart-item-price {
  color: var(--gold);
  font-weight: 600;
}

.cart-item-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
}

.btn-remove {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
}

.btn-remove:hover {
  color: #ff4444;
}

.cart-item-subtotal {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gold-light);
  min-width: 100px;
  text-align: right;
}

.cart-summary {
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 2rem;
  position: sticky;
  top: 90px;
  height: fit-content;
}

.cart-summary h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.summary-row.total {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.summary-row.total span:last-child {
  color: var(--gold-light);
}

.btn-checkout {
  width: 100%;
  justify-content: center;
  margin-top: 1.5rem;
  padding: 1rem;
  font-size: 1rem;
  background: linear-gradient(135deg, #25D366, #128C7E);
}

.btn-checkout:hover {
  background: linear-gradient(135deg, #34E877, #25D366);
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
}

.btn-checkout-whatsapp {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 1rem;
  background: linear-gradient(135deg, #25D366, #128C7E);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  margin-top: 0.75rem;
}

.btn-checkout-whatsapp:hover {
  background: linear-gradient(135deg, #34E877, #25D366);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
  color: white;
}

.cart-empty {
  text-align: center;
  padding: 4rem 2rem;
  grid-column: 1 / -1;
}

.cart-empty-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.cart-empty h2 {
  margin-bottom: 0.5rem;
}

.cart-empty p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

/* ===== CATEGORIES SECTION ===== */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.category-card {
  position: relative;
  aspect-ratio: 1;
  border-radius: 12px;
  overflow: hidden;
  display: block;
}

.category-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.category-card:hover img {
  transform: scale(1.1);
}

.category-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 40%, rgba(0,0,0,0.8));
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
}

.category-overlay h3 {
  font-size: 1.25rem;
  color: white;
  letter-spacing: 1px;
}

/* ===== FEATURES ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  text-align: center;
  padding: 2.5rem;
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--gold-dark);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--gold);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 4rem 2rem 2rem;
  margin-top: 4rem;
}

.footer-grid {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  color: var(--gold);
  margin-bottom: 1rem;
  letter-spacing: 2px;
}

.footer p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer h4 {
  color: var(--text-primary);
  font-size: 1rem;
  margin-bottom: 1rem;
  letter-spacing: 1px;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 0.5rem;
}

.footer ul a {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer ul a:hover {
  color: var(--gold);
}

.footer-bottom {
  max-width: 1400px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ===== NOTIFICATION ===== */
.notification {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--gold);
  color: var(--bg-primary);
  padding: 1rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition);
  z-index: 9999;
}

.notification.show {
  transform: translateY(0);
  opacity: 1;
}

/* ===== ADMIN PAGE ===== */
.admin-layout {
  margin-top: 100px;
  padding: 2rem;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.admin-form {
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 2rem;
  margin-bottom: 2rem;
}

.admin-form h3 {
  margin-bottom: 1.5rem;
  color: var(--gold);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--gold);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.admin-table {
  width: 100%;
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
}

.admin-table th,
.admin-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.admin-table th {
  background: var(--bg-secondary);
  color: var(--gold);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.admin-table td {
  font-size: 0.9rem;
}

.admin-table tr:hover td {
  background: rgba(212, 175, 55, 0.05);
}

.admin-table img {
  width: 50px;
  height: 50px;
  object-fit: cover;
  border-radius: 8px;
}

.btn-delete {
  background: none;
  border: 1px solid #ff4444;
  color: #ff4444;
  padding: 0.4rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.8rem;
  transition: var(--transition);
}

.btn-delete:hover {
  background: #ff4444;
  color: white;
}

/* ===== PAGE HEADERS ===== */
.page-header {
  margin-top: 100px;
  padding: 3rem 2rem;
  text-align: center;
  background: linear-gradient(135deg, rgba(212,175,55,0.1), rgba(183,110,121,0.05));
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.page-header p {
  color: var(--text-secondary);
}

/* ===== NO PRODUCTS ===== */
.no-products {
  text-align: center;
  padding: 4rem 2rem;
  grid-column: 1 / -1;
}

.no-products p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .product-detail-grid {
    gap: 2rem;
  }
  
  .cart-layout {
    grid-template-columns: 1fr;
  }
  
  .cart-summary {
    position: static;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    border-bottom: 1px solid var(--border);
  }
  
  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  
  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .product-detail-grid {
    grid-template-columns: 1fr;
    margin-top: 90px;
    padding: 1rem;
  }
  
  .cart-item {
    grid-template-columns: 80px 1fr;
    gap: 1rem;
  }
  
  .cart-item-actions {
    grid-column: 1 / -1;
    flex-direction: row;
    justify-content: space-between;
  }
  
  .cart-item-subtotal {
    grid-column: 1 / -1;
    text-align: left;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .admin-header {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .section {
    padding: 3rem 1rem;
  }
}

@media (max-width: 480px) {
  .navbar {
    padding: 0 1rem;
  }
  
  .product-grid {
    grid-template-columns: 1fr;
  }
  
  .filter-bar {
    gap: 0.5rem;
  }
  
  .filter-btn {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
  }
  
  .categories-grid {
    grid-template-columns: 1fr;
  }
  
  .btn-primary, .btn-secondary {
    padding: 0.75rem 1.5rem;
    font-size: 0.85rem;
  }
}