/* Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: calc(var(--spacing) * 0.5);
  padding: calc(var(--spacing) * 1) calc(var(--spacing) * 2);
  font-weight: 500;
  font-size: 0.875rem;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  border: 1px solid var(--color-primary);
}

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

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

.btn-secondary:hover:not(:disabled) {
  background: var(--color-background);
  border-color: var(--color-text-muted);
}

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

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

.btn-lg {
  padding: calc(var(--spacing) * 1.25) calc(var(--spacing) * 3);
  font-size: 1rem;
}

.btn-sm {
  padding: calc(var(--spacing) * 0.5) calc(var(--spacing) * 1.25);
  font-size: 0.8125rem;
}

.btn-block {
  width: 100%;
}

.btn-whatsapp-header {
  padding: calc(var(--spacing) * 0.75) calc(var(--spacing) * 1.5);
  background: var(--color-whatsapp);
  color: white;
  border-color: var(--color-whatsapp);
}

.btn-whatsapp-header:hover {
  background: var(--color-whatsapp-hover);
  border-color: var(--color-whatsapp-hover);
  color: white;
}

.btn-whatsapp-footer {
  width: 100%;
  padding: calc(var(--spacing) * 1.25) calc(var(--spacing) * 2);
  background: var(--color-whatsapp);
  color: white;
  border-color: var(--color-whatsapp);
  font-size: 1rem;
  font-weight: 600;
}

.btn-whatsapp-footer:hover {
  background: var(--color-whatsapp-hover);
  border-color: var(--color-whatsapp-hover);
  color: white;
}

.btn-whatsapp-direct {
  background: var(--color-whatsapp);
  color: white;
  border-color: var(--color-whatsapp);
}

.btn-whatsapp-direct:hover {
  background: var(--color-whatsapp-hover);
  border-color: var(--color-whatsapp-hover);
  color: white;
}

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing) * 0.75);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-text);
}

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

.logo-icon {
  width: 32px;
  height: 32px;
  color: var(--color-primary);
}

.main {
  flex: 1;
  padding: calc(var(--spacing) * 3) 0;
}

.hero {
  padding: calc(var(--spacing) * 3) 0;
  text-align: center;
}

.hero-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--spacing);
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

.catalog {
  padding: calc(var(--spacing) * 2) 0;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: calc(var(--spacing) * 2);
}

@media (max-width: 640px) {
  .products-grid {
    grid-template-columns: 1fr;
  }
}

.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-slow);
}

.product-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.product-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.product-image {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--color-background);
}

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

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

.product-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: var(--color-text-muted);
}

.product-placeholder svg {
  width: 48px;
  height: 48px;
}

.product-badge {
  position: absolute;
  top: var(--spacing);
  left: var(--spacing);
  background: var(--color-primary);
  color: white;
  padding: calc(var(--spacing) * 0.25) calc(var(--spacing) * 0.75);
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.product-info {
  padding: calc(var(--spacing) * 1.5);
}

.product-name {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: calc(var(--spacing) * 0.5);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-price {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
}

.product-category {
  display: inline-block;
  margin-top: calc(var(--spacing) * 0.5);
  padding: calc(var(--spacing) * 0.125) calc(var(--spacing) * 0.5);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-background);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: calc(var(--spacing) * 6);
  text-align: center;
  color: var(--color-text-muted);
}

.empty-state svg {
  width: 80px;
  height: 80px;
  margin-bottom: calc(var(--spacing) * 2);
}

.empty-state h2 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing);
  color: var(--color-text);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing) * 0.75);
  padding: calc(var(--spacing) * 1.5) 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--color-text-muted);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: calc(var(--spacing) * 4) 0 calc(var(--spacing) * 2);
  margin-top: calc(var(--spacing) * 4);
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: calc(var(--spacing) * 2);
  margin-bottom: calc(var(--spacing) * 3);
}

.footer-info h3 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing);
}

.footer-info p {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin: calc(var(--spacing) * 0.25) 0;
}

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

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-background);
  color: var(--color-text-muted);
  transition: all var(--transition);
}

.footer-social a:hover {
  background: var(--color-primary);
  color: white;
}

.footer-social svg {
  width: 20px;
  height: 20px;
}

.footer-bottom {
  padding-top: calc(var(--spacing) * 2);
  border-top: 1px solid var(--color-border);
}

/* Cart Sidebar */
.cart-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 200;
  display: flex;
  visibility: hidden;
  opacity: 0;
  transition: all var(--transition-slow);
}

.cart-sidebar.open {
  visibility: visible;
  opacity: 1;
}

.cart-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.cart-sidebar.open .cart-overlay {
  opacity: 1;
}

.cart-panel {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--color-surface);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  box-shadow: var(--shadow-xl);
}

.cart-sidebar.open .cart-panel {
  transform: translateX(0);
}

.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(var(--spacing) * 2);
  border-bottom: 1px solid var(--color-border);
}

.cart-header h2 {
  font-size: 1.125rem;
  font-weight: 600;
}

.cart-close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: all var(--transition);
}

.cart-close:hover {
  background: var(--color-background);
  color: var(--color-text);
}

.cart-close svg {
  width: 20px;
  height: 20px;
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing);
}

.cart-item {
  display: grid;
  grid-template-columns: 64px 1fr 24px;
  gap: var(--spacing);
  padding: var(--spacing);
  background: var(--color-background);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing);
  align-items: start;
}

.cart-item-image {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

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

.cart-item-details {
  min-width: 0;
}

.cart-item-name {
  font-weight: 500;
  font-size: 0.875rem;
  margin-bottom: calc(var(--spacing) * 0.25);
}

.cart-item-variant {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: calc(var(--spacing) * 0.5);
}

.cart-item-price {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-primary);
}

.cart-item-qty {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing) * 0.5);
  margin-top: var(--spacing);
}

.cart-item-qty-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  color: var(--color-text);
  transition: all var(--transition);
}

.cart-item-qty-btn:hover {
  background: var(--color-background);
  border-color: var(--color-text-muted);
}

.cart-item-qty-input {
  width: 36px;
  text-align: center;
  padding: calc(var(--spacing) * 0.25);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-size: 0.875rem;
}

.cart-item-remove {
  grid-column: 2;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  padding-top: calc(var(--spacing) * 0.5);
}

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

.cart-footer {
  padding: calc(var(--spacing) * 2);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.cart-summary {
  margin-bottom: calc(var(--spacing) * 2);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: calc(var(--spacing) * 0.5) 0;
  font-size: 0.875rem;
}

.summary-row span:first-child {
  color: var(--color-text-muted);
}

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

.cart-footer .btn {
  margin-bottom: var(--spacing);
}

@media (min-width: 1024px) {
  .cart-sidebar {
    display: none;
  }
}

/* Product Detail Page */
.product-detail {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--spacing) * 3);
}

@media (min-width: 1024px) {
  .product-detail {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.product-gallery {
  position: sticky;
  top: calc(var(--header-height) + var(--spacing) * 2);
}

.gallery-main {
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-background);
  margin-bottom: var(--spacing);
}

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

.image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: var(--color-text-muted);
}

.image-placeholder svg {
  width: 64px;
  height: 64px;
}

.gallery-thumbs {
  display: flex;
  gap: var(--spacing);
  overflow-x: auto;
  padding-bottom: var(--spacing);
}

.thumb {
  flex: 0 0 72px;
  aspect-ratio: 1;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
}

.thumb.active,
.thumb:hover {
  border-color: var(--color-primary);
}

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

.product-info-detail {
  display: flex;
  flex-direction: column;
}

.product-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: calc(var(--spacing) * 1.5);
}

.product-price-detail {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: calc(var(--spacing) * 1.5);
}

.product-category-detail {
  display: inline-block;
  padding: calc(var(--spacing) * 0.25) calc(var(--spacing) * 0.75);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-background);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  margin-bottom: calc(var(--spacing) * 2);
}

.product-variants {
  margin-bottom: calc(var(--spacing) * 2);
  padding-bottom: calc(var(--spacing) * 2);
  border-bottom: 1px solid var(--color-border);
}

.variant-group {
  margin-bottom: calc(var(--spacing) * 1.5);
}

.variant-group:last-child {
  margin-bottom: 0;
}

.variant-group legend {
  font-weight: 500;
  margin-bottom: var(--spacing);
  font-size: 0.875rem;
}

.variant-options {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--spacing) * 0.5);
}

.variant-option {
  position: relative;
}

.variant-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.variant-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  padding: calc(var(--spacing) * 0.5) calc(var(--spacing) * 1);
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.variant-label .variant-price {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-left: calc(var(--spacing) * 0.5);
}

.variant-option input:checked + .variant-label {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.variant-option input:checked + .variant-label .variant-price {
  color: white;
}

.variant-option:hover .variant-label {
  border-color: var(--color-primary);
}

.product-description {
  margin-bottom: calc(var(--spacing) * 2);
  padding-bottom: calc(var(--spacing) * 2);
  border-bottom: 1px solid var(--color-border);
}

.product-description h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--spacing);
}

.product-description p {
  color: var(--color-text-muted);
  line-height: 1.7;
}

.product-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing);
  margin-bottom: calc(var(--spacing) * 2);
}

.quantity-selector {
  flex: 1;
}

.quantity-selector label {
  display: block;
  font-weight: 500;
  margin-bottom: calc(var(--spacing) * 0.5);
  font-size: 0.875rem;
}

.quantity-input {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  max-width: 140px;
}

.qty-btn {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-background);
  color: var(--color-text);
  font-size: 1.25rem;
  transition: all var(--transition);
}

.qty-btn:hover {
  background: var(--color-border);
}

.quantity-input input {
  width: 60px;
  height: 44px;
  border: none;
  border-left: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  text-align: center;
  font-size: 1rem;
  font-weight: 500;
  background: var(--color-surface);
  -moz-appearance: textfield;
}

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

.product-whatsapp-link {
  margin-top: var(--spacing);
}

.btn-add-cart {
  width: 100%;
}

@media (min-width: 640px) {
  .product-actions {
    flex-direction: row;
    align-items: stretch;
  }
  
  .quantity-selector {
    width: 140px;
    flex-shrink: 0;
  }
}

/* Admin specific styles */
.admin-layout {
  min-height: 100vh;
}

.admin-sidebar {
  width: 260px;
  flex-shrink: 0;
}

@media (max-width: 1023px) {
  .admin-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
  }
  
  .admin-sidebar.open {
    transform: translateX(0);
  }
  
  .admin-main {
    margin-left: 0;
    min-width: 0;
  }
}

@media (min-width: 1024px) {
  .admin-main {
    margin-left: 260px;
  }
}

.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text);
}

@media (max-width: 1023px) {
  .mobile-menu-btn {
    display: flex;
  }
}

/* Login Page */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--spacing) * 2);
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: calc(var(--spacing) * 4);
  box-shadow: var(--shadow-lg);
}

.login-header {
  text-align: center;
  margin-bottom: calc(var(--spacing) * 3);
}

.login-logo {
  width: 64px;
  height: 64px;
  margin: 0 auto calc(var(--spacing) * 2);
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-logo svg {
  width: 32px;
  height: 32px;
  color: white;
}

.login-header h1 {
  font-size: 1.5rem;
  margin-bottom: calc(var(--spacing) * 0.5);
}

.login-header p {
  color: var(--color-text-muted);
}

.login-error {
  background: #fef2f2;
  color: var(--color-error);
  padding: var(--spacing) calc(var(--spacing) * 1.5);
  border-radius: var(--radius-md);
  margin-bottom: calc(var(--spacing) * 2);
  font-size: 0.875rem;
  text-align: center;
}

@media (prefers-color-scheme: dark) {
  .login-error {
    background: #7f1d1d;
    color: #fca5a5;
  }
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.3s ease;
}

.slide-up {
  animation: slideUp 0.4s ease;
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: calc(var(--spacing) * 2);
  right: calc(var(--spacing) * 2);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  gap: var(--spacing);
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--spacing);
  padding: calc(var(--spacing) * 1.5) calc(var(--spacing) * 2);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--color-primary);
  animation: slideIn 0.3s ease;
  max-width: 350px;
}

.toast.success {
  border-left-color: var(--color-success);
}

.toast.error {
  border-left-color: var(--color-error);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Upload zone */
.upload-zone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: calc(var(--spacing) * 3);
  text-align: center;
  transition: all var(--transition);
  cursor: pointer;
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.05);
}

.upload-zone svg {
  width: 48px;
  height: 48px;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing);
}

.upload-zone p {
  color: var(--color-text-muted);
  margin-bottom: calc(var(--spacing) * 0.5);
}

.upload-zone small {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--spacing);
  margin-top: calc(var(--spacing) * 2);
}

.preview-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

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

.preview-actions {
  position: absolute;
  top: var(--spacing);
  right: var(--spacing);
  display: flex;
  gap: calc(var(--spacing) * 0.5);
  opacity: 0;
  transition: opacity var(--transition);
}

.preview-item:hover .preview-actions {
  opacity: 1;
}

.preview-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  color: white;
  border-radius: 50%;
  transition: all var(--transition);
}

.preview-btn:hover {
  background: rgba(0, 0, 0, 0.8);
}