/* বেসিক স্টাইলিং */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

:root {
  --primary: #2e7d32;
  --secondary: #1565c0;
  --accent: #ff8f00;
  --light: #f5f5f5;
  --dark: #333;
}

body {
  background-color: var(--light);
  color: var(--dark);
  line-height: 1.6;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* হেডার স্টাইলিং */
header {
  background: linear-gradient(to right, var(--primary), var(--secondary));
  color: white;
  padding: 15px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.logo {
  font-size: 24px;
  font-weight: bold;
  display: flex;
  align-items: center;
}

.logo a {
  text-decoration: none;
  color: white;
}

.logo i {
  margin-right: 10px;
}

nav ul {
  display: flex;
  list-style: none;
}

nav ul li {
  margin-left: 20px;
}

nav ul li a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
}

nav ul li a:hover {
  color: var(--accent);
}

/* প্রোডাক্ট ডিটেইল সেকশন */
.product-detail {
  padding: 40px 0;
  background-color: white;
}

.breadcrumb {
  margin-bottom: 30px;
}

.breadcrumb a {
  color: var(--secondary);
  text-decoration: none;
  font-weight: 500;
}

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

.detail-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.detail-image {
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  height: 400px;
}

.detail-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.detail-info h1 {
  color: var(--primary);
  margin-bottom: 15px;
  font-size: 2.2rem;
}

.detail-category {
  display: inline-block;
  background-color: var(--light);
  color: var(--secondary);
  padding: 5px 15px;
  border-radius: 5px;
  font-size: 0.9rem;
  margin-bottom: 15px;
  font-weight: 500;
}

.detail-price {
  color: var(--accent);
  font-weight: bold;
  font-size: 1.8rem;
  margin: 20px 0;
}

.detail-description {
  margin-bottom: 25px;
  line-height: 1.8;
  font-size: 1.1rem;
}

.detail-features {
  margin-bottom: 25px;
}

.detail-features h3 {
  color: var(--primary);
  margin-bottom: 15px;
  font-size: 1.3rem;
}

.detail-features ul {
  list-style-type: none;
  margin-left: 0;
  padding-left: 0;
}

.detail-features li {
  margin-bottom: 12px;
  padding-left: 30px;
  position: relative;
  font-size: 1.05rem;
}

.detail-features li:before {
  content: "✓";
  color: var(--primary);
  position: absolute;
  left: 0;
  font-weight: bold;
  font-size: 1.2rem;
}

.usage-instructions {
  background-color: var(--light);
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 25px;
}

.usage-instructions h3 {
  color: var(--primary);
  margin-bottom: 15px;
  font-size: 1.3rem;
}

.usage-instructions p {
  line-height: 1.7;
}

.detail-actions {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent);
  color: white;
  padding: 12px 25px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  gap: 8px;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.btn-whatsapp {
  background-color: #25d366;
}

.btn-whatsapp:hover {
  background-color: #128c7e;
}

.btn-business {
  background-color: var(--secondary);
}

.btn-business:hover {
  background-color: #0d47a1;
}

/* সম্পর্কিত প্রোডাক্টস সেকশন */
.related-products {
  padding: 60px 0;
  background-color: #f9f9f9;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
  color: var(--primary);
  font-size: 2.2rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
}

.related-product-card {
  background-color: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.related-product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.related-product-img {
  height: 200px;
  background-color: #ddd;
  background-position: center;
  background-size: cover;
}

.related-product-info {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.related-product-info h3 {
  margin-bottom: 10px;
  color: var(--primary);
}

.related-product-category {
  display: inline-block;
  background-color: var(--light);
  color: var(--secondary);
  padding: 5px 10px;
  border-radius: 5px;
  font-size: 0.8rem;
  margin-bottom: 10px;
}

.related-product-price {
  color: var(--accent);
  font-weight: bold;
  font-size: 1.2rem;
  margin: 10px 0;
}

.related-product-actions {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
}

/* ফুটার */
footer {
  background-color: var(--dark);
  color: white;
  padding: 50px 0 20px;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  justify-content: space-between;
  margin-bottom: 30px;
}

.footer-section {
  flex: 1;
  min-width: 250px;
}

.footer-section h3 {
  margin-bottom: 20px;
  color: var(--accent);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 10px;
}

.footer-section ul li a {
  color: #ddd;
  text-decoration: none;
  transition: all 0.3s ease;
}

.footer-section ul li a:hover {
  color: var(--accent);
}

.social-links {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}

.social-links a {
  color: white;
  font-size: 1.5rem;
  transition: all 0.3s ease;
}

.social-links a:hover {
  color: var(--accent);
}

.copyright {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid #444;
}

/* WhatsApp ফ্লোটিং বাটন */
.whatsapp-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 25px;
  right: 25px;
  background-color: #25d366;
  color: white;
  border-radius: 50px;
  text-align: center;
  font-size: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.whatsapp-float:hover {
  background-color: #128c7e;
  transform: scale(1.1);
}

/* রেসপন্সিভ ডিজাইন */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    text-align: center;
  }

  nav ul {
    margin-top: 20px;
    justify-content: center;
  }

  nav ul li {
    margin: 0 10px;
  }

  .detail-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .detail-image {
    height: 300px;
  }

  .detail-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .whatsapp-float {
    width: 50px;
    height: 50px;
    bottom: 20px;
    right: 20px;
    font-size: 25px;
  }
}

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

  .detail-info h1 {
    font-size: 1.8rem;
  }

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