Here's the complete modified grip-21.css file:

```css
/* Additional styles specific to the grip product page */

/* Adjust the size of the grip product image if needed */
.main-image img[src*="grip.jpg"] {
  max-width: 65%; /* Make the grip image a bit smaller if needed */
}

/* Style for single thumbnail scenario */
.thumbnail-gallery.single-image {
  justify-content: center;
}

/* Add a specific background color to highlight the grip product */
.product-hero {
  background-color: var(--bg-medium);
}

/* Style for product subtitle - New styling to match the title and add underline */
.product-subtitle {
  color: #1a5276; /* Explicit color */
  text-decoration: underline;
  margin-bottom: 0.5rem;
  font-size: 1.5rem; /* Explicit font size */
}

/* Style for the new Lapland travel text - Same styling as subtitle */
.lapland-text {
  color: #1a5276; /* Same color as product-subtitle */
  text-decoration: underline;
  font-size: 1.5rem; /* Same font size as product-subtitle */
  margin-top: 0.5rem;
}/* If there's only one thumbnail, center it better */
.thumbnail-gallery:only-child {
  margin: 0 auto;
}

/* Specific styling for the grip features */
.features-list li {
  line-height: 1.8; /* Slightly more spacing for readability */
}

/* Hide the YouTube section if no video is available */
.no-video .youtube-demo {
  display: none;
}

/* Add a highlight for the special features of grip soles */
.highlight-feature {
  color: var(--accent-color);
  font-weight: 600;
}

/* Add a specific icon for the grip product sizes */
.size-info {
  display: flex;
  justify-content: space-around;
  margin: 2rem 0;
  padding: 1rem;
  background-color: var(--bg-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.size-item {
  text-align: center;
  padding: 0.5rem 1rem;
  font-weight: 500;
}

.size-item.recommended {
  color: var(--primary-color);
  font-weight: 700;
  position: relative;
}

.size-item.recommended::after {
  content: "מומלץ";
  display: block;
  font-size: 0.8rem;
  color: var(--accent-color);
}

/* Custom badge for special products */
.new-product-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background-color: var(--accent-color);
  color: white;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
  z-index: 2;
}

/* Custom styling for product comparison section if needed */
.product-comparison {
  margin-top: 2rem;
  padding: 1rem;
  background-color: var(--bg-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.product-comparison h4 {
  color: var(--primary-dark);
  margin-bottom: 1rem;
}

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

.comparison-table th,
.comparison-table td {
  padding: 0.75rem;
  text-align: center;
  border: 1px solid var(--border-color);
}

.comparison-table th {
  background-color: var(--primary-light);
  color: white;
}

.comparison-table tr:nth-child(even) {
  background-color: var(--bg-medium);
}

/* Style for usage scenarios section */
.usage-scenarios {
  margin-top: 2rem;
}

.scenarios-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}

.scenario-item {
  background-color: var(--bg-light);
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.scenario-icon {
  width: 24px;
  height: 24px;
  color: var(--primary-color);
}

/* Responsive adjustments for the grip product page */
@media (max-width: 768px) {
  .scenarios-list {
    grid-template-columns: 1fr;
  }
  
  .size-info {
    flex-wrap: wrap;
  }
  
  .size-item {
    width: 45%;
    margin-bottom: 1rem;
  }
}
```