* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Tahoma, Arial, sans-serif;
  direction: rtl;
  background: #f7f7f7;
  color: #222;
}

.container {
  width: min(1200px, 95%);
  margin: 0 auto;
  padding: 20px 0 40px;
}

.section-title {
  text-align: center;
  font-size: 1.4rem;
  margin: 10px 0 20px;
  color: #111;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.product-card {
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,.08);
  padding-bottom: 16px;
  transition: .25s;
}

.product-card:hover {
  transform: translateY(-4px);
}

.product-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.product-card h3 {
  margin: 12px 12px 8px;
  font-size: 1rem;
}

.price {
  margin: 0 12px 12px;
  color: #0a7a2f;
  font-weight: bold;
}

.btn {
  display: inline-block;
  text-decoration: none;
  border-radius: 10px;
  padding: 10px 14px;
  font-size: .95rem;
  margin: 0 12px;
  text-align: center;
  transition: .25s;
}

.info-btn {
  background: #0d6efd;
  color: #fff;
}

.info-btn:hover {
  background: #0b5ed7;
}

.back-btn {
  background: #444;
  color: #fff;
  display: block;
  width: fit-content;
  margin: 30px auto 0;
}

.back-btn:hover {
  background: #222;
}

.out-of-stock {
  opacity: .75;
}

.out-of-stock-label {
  display: inline-block;
  margin: 0 12px 10px;
  color: #d10000;
  font-weight: bold;
}

.detail-container {
  width: min(1000px, 95%);
  margin: 0 auto;
  padding: 20px 0 40px;
}

.main-image-box {
  background: #fff;
  border-radius: 16px;
  padding: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,.08);
}

.main-image-box img {
  width: 100%;
  max-height: 500px;
  object-fit: contain;
  display: block;
  border-radius: 12px;
}

.thumbnail-gallery {
  display: flex;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
  justify-content: center;
}

.thumbnail-gallery img {
  width: 85px;
  height: 85px;
  object-fit: cover;
  border-radius: 10px;
  border: 2px solid #ddd;
  cursor: pointer;
  transition: .25s;
  background: #fff;
}

.thumbnail-gallery img:hover {
  border-color: #0d6efd;
  transform: scale(1.05);
}

.telegram-btn {
  background: #25d366;
  color: #fff;
  display: block;
  width: fit-content;
  margin: 20px auto 0;
}

.telegram-btn:hover {
  background: #1fb757;
}

.product-info {
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 2px 12px rgba(0,0,0,.08);
  padding: 16px;
  margin-top: 18px;
  line-height: 2;
}

@media (max-width: 768px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-card img {
    height: 180px;
  }

  .thumbnail-gallery img {
    width: 72px;
    height: 72px;
  }
}

@media (max-width: 480px) {
  .product-grid {
    grid-template-columns: 1fr;
  }

  .section-title {
    font-size: 1.1rem;
  }

  .product-card img {
    height: 200px;
  }

  .thumbnail-gallery {
    gap: 8px;
  }

  .thumbnail-gallery img {
    width: 68px;
    height: 68px;
  }
}