header {
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 500;
}

.header-top {
  background: var(--primary-color);
  color: white;
  padding: 0.5rem 0;
  font-size: 0.875rem;
}

.header-top .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.header-top-left {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.header-top-right {
  display: flex;
  gap: 0.5rem;
}

.lang-switch {
  display: flex;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.lang-switch button {
  padding: 0.5rem 1rem;
  border: none;
  background: transparent;
  color: white;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 40px;
}

.lang-switch button:hover {
  background: rgba(255, 255, 255, 0.1);
}

.lang-switch button.active {
  background: rgba(255, 255, 255, 0.3);
}

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

.header-main .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
}

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

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
}

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

nav {
  display: flex;
  gap: 2rem;
}

nav a {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  transition: color var(--transition-fast);
  padding: 0.5rem 0;
  position: relative;
}

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

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width var(--transition-normal);
}

nav a:hover::after {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  width: 48px;
  height: 48px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.mobile-menu-btn span {
  width: 28px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.mobile-menu-btn.menu-open span:nth-child(1) {
  transform: rotate(45deg) translateY(6px);
}

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

.mobile-menu-btn.menu-open span:nth-child(3) {
  transform: rotate(-45deg) translateY(-6px);
}

.mobile-menu {
  position: fixed;
  top: 120px;
  left: -100%;
  width: 80%;
  max-width: 320px;
  height: calc(100vh - 120px);
  background: var(--bg-white);
  box-shadow: var(--shadow-lg);
  padding: 1.5rem;
  transition: left var(--transition-normal);
  z-index: 600;
}

.mobile-menu.menu-active {
  left: 0;
}

.mobile-menu nav {
  flex-direction: column;
  gap: 1rem;
}

.mobile-menu nav a {
  padding: 1rem;
  border-radius: var(--radius-md);
}

.mobile-menu nav a:hover {
  background: var(--bg-secondary);
}

.hero-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 4rem 0;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-content h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.hero-content p {
  font-size: 1.125rem;
  opacity: 0.9;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.products-section {
  padding: 4rem 0;
}

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

.section-title h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.section-title p {
  color: var(--text-secondary);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.product-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.product-card-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  pointer-events: none;
  user-select: none;
  -webkit-touch-callout: none;
  transition: transform var(--transition-normal);
}

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

.product-card-body {
  padding: 1.25rem;
}

.product-card-category {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--accent-light);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
}

.product-card-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  min-height: 2.5rem;
}

.product-card-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.5;
  min-height: 3rem;
}

.product-card-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 1rem;
}

.product-card-price small {
  font-size: 0.75em;
  font-weight: 400;
  color: var(--text-muted);
}

.product-card-actions {
  display: flex;
  gap: 0.5rem;
}

.product-card-actions .btn {
  flex: 1;
}

.categories-section {
  padding: 4rem 0;
  background: var(--bg-secondary);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.category-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.category-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.category-card-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.75rem;
}

.category-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.features-section {
  padding: 4rem 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.feature-card {
  text-align: center;
  padding: 2rem;
}

.feature-card-icon {
  width: 80px;
  height: 80px;
  background: var(--accent-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.contact-section {
  padding: 4rem 0;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
}

.contact-section .container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.contact-info {
  padding: 2rem;
}

.contact-info h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.contact-item-content h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.contact-item-content p {
  font-size: 0.875rem;
  opacity: 0.9;
}

.contact-buttons {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.contact-buttons .btn {
  flex: 1;
  min-width: 140px;
}

.contact-form {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  color: var(--text-primary);
}

.contact-form h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color var(--transition-fast);
  min-height: 48px;
}

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

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-error {
  background: var(--danger-light);
  border-left: 4px solid var(--danger-color);
  padding: 1rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 1rem;
  display: none;
}

.form-error p {
  color: var(--danger-color);
  margin: 0;
}

.form-success {
  background: rgba(46, 125, 50, 0.1);
  border-left: 4px solid var(--success-color);
  padding: 1rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 1rem;
  display: none;
}

.form-success p {
  color: var(--success-color);
  margin: 0;
}

.mailto-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
}

.mailto-link:hover {
  text-decoration: underline;
}

footer {
  background: var(--text-primary);
  color: white;
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-brand {
  padding: 0 1rem;
}

.footer-brand .logo {
  margin-bottom: 1rem;
}

.footer-brand .logo-text {
  color: white;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.footer-links h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-links ul {
  list-style: none;
  padding: 0;
}

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

.footer-links ul li a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-links ul li a:hover {
  color: white;
}

.footer-contact {
  padding: 0 1rem;
}

.footer-contact h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-contact p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

#scroll-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  background: var(--primary-color);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 1.25rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 500;
  box-shadow: var(--shadow-md);
}

#scroll-to-top.show {
  opacity: 1;
  visibility: visible;
}

#scroll-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.breadcrumb {
  background: var(--bg-secondary);
  padding: 1rem 0;
}

.breadcrumb .container {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.breadcrumb a {
  color: var(--primary-color);
  text-decoration: none;
  font-size: 0.875rem;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

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

.product-detail-section {
  padding: 2rem 0;
}

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

.product-detail-image {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-white);
  box-shadow: var(--shadow-md);
}

.product-detail-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.product-detail-info {
  padding: 1.5rem;
}

.product-detail-info h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.product-detail-category {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--accent-light);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

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

.product-detail-price small {
  font-size: 0.75em;
  font-weight: 400;
  color: var(--text-muted);
}

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

.product-detail-specs {
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-bottom: 1.5rem;
}

.product-detail-specs h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.product-detail-specs table {
  width: 100%;
  font-size: 0.875rem;
}

.product-detail-specs th {
  text-align: left;
  padding: 0.5rem 0;
  font-weight: 600;
  color: var(--text-secondary);
  width: 30%;
}

.product-detail-specs td {
  padding: 0.5rem 0;
  color: var(--text-primary);
}

.product-detail-actions {
  display: flex;
  gap: 1rem;
}

.product-detail-actions .btn {
  flex: 1;
}

.related-products {
  padding: 2rem 0;
}

.related-products h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 2rem;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.copy-btn.copied {
  background: var(--success-color);
  color: white;
}

.hidden-text {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 768px) {
  .header-top-left {
    gap: 1rem;
  }
  
  nav {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .hero-content h1 {
    font-size: 1.75rem;
  }
  
  .hero-content p {
    font-size: 1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-buttons .btn {
    width: 100%;
    max-width: 300px;
  }
  
  .product-detail-content {
    grid-template-columns: 1fr;
  }
  
  .product-detail-image img {
    height: 280px;
  }
  
  .product-detail-actions {
    flex-direction: column;
  }
  
  .contact-buttons {
    flex-direction: column;
  }
  
  .contact-buttons .btn {
    width: 100%;
  }
}