/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f9fa;
}

/* Container System */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Row and Column System */
.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -15px;
  justify-content: center;
  align-items: flex-start;
}

.col-md-6 {
  flex: 0 0 50%;
  max-width: 50%;
  padding: 0 15px;
}

/* Navigation */
.nav-back {
  background-color: #fff;
  border-bottom: 1px solid #e9ecef;
  padding: 15px 0;
  margin-bottom: 30px;
}

.back-link {
  font-size: 1rem;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  color: #333;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.back-link:hover {
  color: #0056b3;
}

.back-link i {
  margin-right: 8px;
}

/* Artwork Image Section */
.artwork-image-section {
  position: sticky;
  top: 20px;
}

.artwork-image {
  display: block;
  margin-left: 0;
  width: 100%;
  max-width: 100%;
  margin-top: 20px;
  height: auto;
  border-radius: 8px;
  object-fit: contain;
  object-position: center;
}

/* Title and Heading Section */
.title-heading-section {
  margin-bottom: 25px;
}

.artwork-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 10px;
  text-align: center;
}

.artist-credit {
  font-size: 1rem;
  color: #6c757d;
  font-style: italic;
  margin-bottom: 20px;
  text-align: center;
}

/* Content Sections */
section {
  margin-bottom: 30px;
}

section h3 {
  font-size: 1.25rem;
  color: #2c3e50;
  margin-bottom: 15px;
  font-weight: 600;
}

/* About Artwork Section */
.artwork-description {
  color: #495057;
  line-height: 1.7;
  font-size: 1rem;
}

/* Technical Details Section */
.details-list {
  margin: 0;
}

.detail-item {
  display: block;
  margin-bottom: 8px;
  line-height: 1.5;
}

.detail-label {
  font-weight: 600;
  color: #495057;
}

.detail-value {
  color: #6c757d;
}

/* About Artist Section */
.artist-bio {
  color: #495057;
  line-height: 1.7;
}

/* Print Size Section */
.size-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
  margin-top: 15px;
  text-align: center;
}

.size-card {
  display: block;
  position: relative;
  cursor: pointer;
}

.size-card input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.size-info {
  text-align: center;
  padding: 20px 10px;
  border: 2px solid #e9ecef;
  border-radius: 8px;
  background-color: #fff;
  transition: all 0.3s ease;
}

.size-card:hover .size-info {
  border-color: #007bff;
  background-color: #f8f9ff;
}

.size-card input[type="radio"]:checked + .size-info {
  border-color: #007bff;
  background-color: #f8f9ff;
}

.size-dimensions {
  font-weight: 600;
  color: #495057;
  margin-bottom: 5px;
}

.size-price {
  color: #dc3545;
  font-weight: 600;
  font-size: 0.9rem;
}

/* Rating Section */
.rating-overview {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
}

.stars-large {
  color: #ffc107;
  font-size: 1.4rem;
}

.rating-summary {
  color: #6c757d;
  font-size: 0.95rem;
}

.rating-breakdown {
  margin-top: 15px;
}

.rating-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.star-count {
  font-size: 0.9rem;
  color: #495057;
  min-width: 15px;
}

.rating-bar {
  flex: 1;
  height: 8px;
  background-color: #e9ecef;
  border-radius: 4px;
  overflow: hidden;
}

.rating-fill {
  height: 100%;
  background-color: #ffc107;
  transition: width 0.3s ease;
}

/* Price and Stock Section */
.price-stock-section {
  background-color: #fff;
  padding: 20px;
  border-radius: 8px;
  border: 1px solid #e9ecef;
  margin-bottom: 25px;
}

.price-display {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 15px;
}

.current-price {
  font-size: 2rem;
  font-weight: 700;
  color: #28a745;
}

.original-price {
  font-size: 1.2rem;
  color: #6c757d;
  text-decoration: line-through;
}

.stock-status {
  display: flex;
  align-items: center;
  gap: 8px;
}

.stock-status i {
  color: #28a745;
}

.in-stock {
  color: #28a745;
  font-weight: 500;
}

/* Action Buttons */
.action-buttons-section {
  display: flex;
  gap: 15px;
}

.btn {
  flex: 1;
  padding: 15px 20px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
}

.btn-primary {
  background-color: #333;
  color: white;
}

.btn-primary:hover {
  background-color: #0056b3;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
}

.btn-secondary {
  background-color: #fff;
  color: #333;
  border: 2px solid #e9ecef;
}

.btn-secondary:hover {
  background-color: #f8f9fa;
  border-color: #333;
  color: #007bff;
  transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
  .col-md-6 {
    flex: 0 0 100%;
    max-width: 100%;
  }

  .artwork-title {
    font-size: 2rem;
  }

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

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

  .current-price {
    font-size: 1.5rem;
  }

  .artwork-image-section {
    position: static;
    margin-bottom: 30px;
  }

  .artwork-image {
    width: 100%;
    max-width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: contain;
    margin: 10px 0;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 10px;
  }

  .artwork-title {
    font-size: 1.5rem;
  }

  .artwork-image {
    width: 100%;
    max-width: 100vw;
    height: auto;
    max-height: 300px;
    object-fit: contain;
    border-radius: 4px;
    margin: 5px 0;
  }

  .artwork-image-section {
    position: static;
    margin-bottom: 20px;
    text-align: center;
  }

  .size-option {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .price-display {
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
  }

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