:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #93c5fd;
  --secondary: #7c3aed;
  --dark: #0f172a;
  --darker: #020617;
  --light: #f8fafc;
  --lighter: #ffffff;
  --gray: #64748b;
  --light-gray: #e2e8f0;
  --accent: #f59e0b;
  --success: #10b981;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --radius-sm: 4px;
  --radius: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--light);
  color: var(--dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont,
    sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

a {
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
}

/* Header */
header {
  background-color: var(--lighter);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
  background-color: rgba(255, 255, 255, 0.8);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.logo {
  font-size: 28px;
  font-weight: 800;
  color: var(--dark);
  text-decoration: none;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  text-decoration: none;
  color: var(--dark);
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: var(--transition);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-icon {
  font-size: 20px;
  color: var(--dark);
  transition: var(--transition);
  cursor: pointer;
}

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

.cart-count {
  position: absolute;
  top: -8px;
  right: -8px;
  background-color: var(--primary);
  color: white;
  border-radius: var(--radius-full);
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
}

/* Hero Section */
.hero {
  padding: 60px 0;
  background: linear-gradient(
    to bottom,
    var(--lighter) 0%,
    rgba(248, 250, 252, 0.8) 100%
  );
}

/* Product Section */
.product-section {
  padding: 80px 0;
}

.product-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}

.product-gallery {
  position: relative;
}

.main-image-container {
  background-color: var(--lighter);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  padding: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 560px;
  position: relative;
  overflow: hidden;
}

.main-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: var(--transition);
  transform-style: preserve-3d;
}

.main-image:hover {
  transform: scale(1.05) rotateY(5deg);
}

.badge {
  position: absolute;
  top: 24px;
  left: 24px;
  background-color: var(--accent);
  color: var(--darker);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-sm);
  z-index: 2;
}

.thumbnail-container {
  display: flex;
  gap: 16px;
  margin-top: 24px;
}

.thumbnail {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  background-color: var(--lighter);
  padding: 8px;
  box-shadow: var(--shadow-sm);
}

.thumbnail:hover,
.thumbnail.active {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

/* Product Info */
.product-info {
  padding: 20px 0;
  position: sticky;
  top: 120px;
  align-self: start;
}

.brand {
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 14px;
  display: inline-block;
  background-color: var(--primary-light);
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.product-title {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.1;
  letter-spacing: -0.5px;
}

.product-subtitle {
  color: var(--gray);
  font-size: 18px;
  margin-bottom: 24px;
  font-weight: 500;
}

.product-price-container {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.current-price {
  font-size: 32px;
  font-weight: 800;
  color: var(--dark);
}

.original-price {
  font-size: 20px;
  color: var(--gray);
  text-decoration: line-through;
}

.discount {
  background-color: #fee2e2;
  color: #dc2626;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 700;
}

.product-description {
  color: var(--gray);
  text-align: justify;
  margin-bottom: 32px;
  font-size: 16px;
  line-height: 1.7;
}

.divider {
  height: 1px;
  background-color: var(--light-gray);
  margin: 32px 0;
}

.features {
  margin-bottom: 32px;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.feature-icon {
  color: var(--success);
  font-size: 18px;
}

.feature-text {
  font-weight: 500;
}

/* Color Options */
.option-section {
  margin-bottom: 32px;
}

.option-title {
  font-weight: 700;
  margin-bottom: 16px;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.option-title i {
  color: var(--primary);
}

.colors {
  display: flex;
  gap: 12px;
}

.color {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  position: relative;
}

.color::after {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  border: 1px solid var(--light-gray);
  border-radius: var(--radius-full);
  opacity: 0;
  transition: var(--transition);
}

.color:hover::after,
.color.active::after {
  opacity: 1;
}

.color:hover,
.color.active {
  transform: translateY(-2px);
}

.color.active {
  border-color: var(--lighter);
  box-shadow: var(--shadow);
}

.color-1 {
  background-color: #000000;
}
.color-2 {
  background-color: #514d46;
}
.color-3 {
  background-color: #0cbfe9;
}
.color-4 {
  background-color: #00827f;
}
.color-5 {
  background-color: #792315;
}
.color-6 {
  background-color: #6f7269;
}
.color-7 {
  background-color: #ffb90f;
}
.color-8 {
  background-color: #999b9b;
}

/* Quantity */
.quantity-selector {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

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

.quantity button {
  background: none;
  border: none;
  padding: 12px 16px;
  cursor: pointer;
  font-size: 16px;
  color: var(--gray);
  background-color: var(--light);
  transition: var(--transition);
}

.quantity button:hover {
  background-color: var(--light-gray);
  color: var(--dark);
}

.quantity input {
  width: 60px;
  text-align: center;
  border: none;
  font-size: 16px;
  font-weight: 600;
  background-color: var(--lighter);
}

/* Buttons */
.action-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.btn {
  padding: 18px 32px;
  border-radius: var(--radius);
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.btn-primary {
  font-family: inherit;
  background-color: var(--primary);
  color: var(--lighter);
  border: none;
  flex: 1;
  box-shadow: 0 4px 6px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  box-shadow: 0 10px 15px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
  font-family: inherit;
  background-color: var(--lighter);
  color: var(--primary);
  border: 1px solid var(--light-gray);
  flex: 1;
}

.btn-secondary:hover {
  background-color: var(--light);
  box-shadow: var(--shadow-sm);
}

.wishlist-btn {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--lighter);
  border: 1px solid var(--light-gray);
  color: var(--gray);
  cursor: pointer;
  transition: var(--transition);
}

.wishlist-btn:hover {
  color: #dc2626;
  border-color: #fee2e2;
  background-color: #fef2f2;
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.delivery-info {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background-color: var(--light);
  border-radius: var(--radius);
  margin-bottom: 32px;
}

.delivery-icon {
  font-size: 20px;
  color: var(--success);
}

.delivery-text {
  font-size: 14px;
}

.delivery-text strong {
  color: var(--dark);
  font-weight: 600;
}

/* Product Details */
.product-details {
  margin-top: 80px;
  background-color: var(--lighter);
  border-radius: var(--radius-xl);
  padding: 60px;
  box-shadow: var(--shadow-sm);
}

.details-tabs {
  display: flex;
  border-bottom: 1px solid var(--light-gray);
  margin-bottom: 40px;
}

.tab {
  padding: 16px 32px;
  cursor: pointer;
  font-weight: 700;
  position: relative;
  color: var(--gray);
  transition: var(--transition);
}

.tab:hover {
  color: var(--dark);
}

.tab.active {
  color: var(--primary);
}

.tab.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary);
}

.tab-content {
  display: none;
  animation: fadeIn 0.5s ease;
}

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

.tab-content.active {
  display: block;
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
}

.specs-table tr:nth-child(even) {
  background-color: var(--light);
}

.specs-table td {
  padding: 16px;
  border-bottom: 1px solid var(--light-gray);
  font-size: 15px;
}

.specs-table td:first-child {
  font-weight: 600;
  width: 30%;
  color: var(--dark);
}

/* Reviews */
.review {
  padding: 24px 0;
  border-bottom: 1px solid var(--light-gray);
}

.review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.review-author {
  font-weight: 700;
  color: var(--dark);
}

.review-date {
  color: var(--gray);
  font-size: 14px;
}

.rating {
  color: #f59e0b;
  margin-bottom: 8px;
  font-size: 16px;
}

.review-content {
  color: var(--gray);
  line-height: 1.7;
}

/* Related Products */
.related-products {
  margin-top: 80px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 40px;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  position: relative;
  padding-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80px;
  height: 4px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  border-radius: 2px;
}

.view-all {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.view-all:hover {
  gap: 12px;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-card {
  background-color: var(--lighter);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.product-card-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background-color: var(--primary);
  color: var(--lighter);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 700;
  z-index: 2;
}

.product-card-image-container {
  height: 240px;
  background-color: var(--light);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  position: relative;
  overflow: hidden;
}

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

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

.product-card-body {
  padding: 24px;
}

.product-card-title {
  font-weight: 700;
  margin-bottom: 8px;
  font-size: 16px;
  color: var(--dark);
}

.product-card-price {
  font-weight: 800;
  color: var(--primary);
  font-size: 18px;
}

/* Newsletter */
.newsletter {
  margin-top: 80px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  border-radius: var(--radius-xl);
  padding: 60px;
  color: var(--lighter);
  position: relative;
  overflow: hidden;
}

.newsletter::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(255, 255, 255, 0) 70%
  );
  border-radius: var(--radius-full);
}

.newsletter-content {
  max-width: 600px;
  position: relative;
  z-index: 2;
}

.newsletter-title {
  font-size: 32px;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.newsletter-text {
  margin-bottom: 32px;
  opacity: 0.9;
}

.newsletter-form {
  display: flex;
  gap: 16px;
}

.newsletter-input {
  font-family: inherit;
  flex: 1;
  padding: 16px 24px;
  border-radius: var(--radius);
  border: none;
  font-size: 16px;
  background-color: rgba(255, 255, 255, 0.9);
  transition: var(--transition);
}

.newsletter-input:focus {
  outline: none;
  background-color: var(--lighter);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.newsletter-btn {
  font-family: inherit;
  background-color: var(--darker);
  color: var(--lighter);
  border: none;
  padding: 16px 32px;
  border-radius: var(--radius);
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.newsletter-btn:hover {
  background-color: black;
  transform: translateY(-2px);
}

/* Footer */
footer {
  background-color: var(--darker);
  color: var(--light);
  padding: 80px 0 40px;
  margin-top: 120px;
  position: relative;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    to right,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 60px;
  margin-bottom: 80px;
}

.footer-column h3 {
  font-size: 18px;
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 12px;
  color: var(--lighter);
}

.footer-column h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
}

.footer-logo {
  font-size: 24px;
  font-weight: 800;
  color: var(--lighter);
  margin-bottom: 24px;
  display: inline-block;
}

.footer-text {
  color: var(--gray);
  margin-bottom: 24px;
  line-height: 1.7;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--gray);
  text-decoration: none;
  transition: var(--transition);
  display: inline-block;
}

.footer-links a:hover {
  color: var(--lighter);
  transform: translateX(4px);
}

.social-links {
  display: flex;
  gap: 16px;
}

.social-links a {
  color: var(--lighter);
  background-color: rgba(255, 255, 255, 0.05);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.social-links a:hover {
  background-color: var(--primary);
  transform: translateY(-3px);
}

.copyright {
  text-align: center;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--gray);
  font-size: 14px;
}

/* Responsive */
@media (max-width: 1200px) {
  .container {
    padding: 0 32px;
  }

  .product-container {
    gap: 60px;
  }

  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 992px) {
  .product-container {
    grid-template-columns: 1fr;
  }

  .main-image-container {
    height: 480px;
  }

  .product-info {
    position: static;
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 24px;
  }

  .nav-links {
    display: none;
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-btn {
    width: 100%;
  }

  .action-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 16px;
  }

  .main-image-container {
    height: 360px;
    padding: 40px;
  }

  .product-title {
    font-size: 32px;
  }

  .products-grid {
    grid-template-columns: 1fr;
  }

  .product-details {
    padding: 40px 24px;
  }

  .details-tabs {
    flex-direction: column;
  }

  .tab {
    border-bottom: 1px solid var(--light-gray);
  }

  .newsletter {
    padding: 40px 24px;
  }

  .newsletter-title {
    font-size: 24px;
  }
}