* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f4f6f8;
    display: grid;
    grid-template-columns: 70% 30%;
    max-width: 1200px;
    margin: auto;
  }
  
  /* HEADER */
  header {
    background: linear-gradient(135deg, #0d6efd, #0dcaf0);
    color: white;
    padding: 25px;
    text-align: center;
    grid-column: 1 / span 2;
  }
  
  /* NAV */
  nav {
    background-color: #212529;
    grid-column: 1 / span 2;
    padding: 12px;
  }
  
  nav ul {
    list-style: none;
  }
  
  nav ul li {
    display: inline-block;
    margin: 0 15px;
  }
  
  nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
  }
  
  nav ul li a:hover {
    color: #0dcaf0;
  }
  
  /* PRODUCT LIST */
  .product-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 20px;
  }
  
  .product-card {
    background-color: white;
    border-radius: 10px;
    padding: 15px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s;
  }
  
  .product-card:hover {
    transform: translateY(-5px);
  }
  
  .product-card img {
    max-width: 100%;
    border-radius: 8px;
  }
  
  .price {
    color: #dc3545;
    font-weight: bold;
    font-size: 18px;
  }
  
  /* BUTTON */
  .btn-buy {
    background-color: #198754;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
  }
  
  .btn-buy:hover {
    background-color: #157347;
  }
  
  /* SIDEBAR */
  .sidebar {
    background-color: white;
    margin: 20px;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  }
  
  .sidebar a {
    display: block;
    margin-top: 10px;
    color: #0d6efd;
    text-decoration: none;
  }
  
  .sidebar a:hover {
    text-decoration: underline;
  }
  
  /* FOOTER */
  .footer {
    background-color: #212529;
    color: white;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    padding: 20px;
    grid-column: 1 / span 2;
  }
  
  .footer-item {
    padding: 10px;
  }
  
  /* RESPONSIVE */
  @media (max-width: 768px) {
    body {
      grid-template-columns: 1fr;
    }
  
    .product-list {
      grid-template-columns: 1fr;
    }
  
    .sidebar {
      margin: 0 20px 20px;
    }
  
    .footer {
      grid-template-columns: 1fr;
    }
  }

  

  /* HERO */
.hero {
    grid-column: 1 / span 2;
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)),
                url("/img/ANH-4-2.jpg") center/cover;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
  }
  
  .hero-btn {
    background-color: #ffc107;
    padding: 10px 25px;
    border-radius: 25px;
    text-decoration: none;
    color: black;
    font-weight: bold;
  }
  
  .hero-btn:hover {
    background-color: #ffca2c;
  }
  
  /* CART ITEM */
  .remove {
    cursor: pointer;
    color: red;
    font-weight: bold;
  }

  


  /* CONTACT PAGE */
.contact-container {
  grid-column: 1 / span 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  padding: 40px;
}

.contact-form,
.contact-info {
  background-color: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.contact-form h2,
.contact-info h2 {
  margin-bottom: 20px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px;
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid #ccc;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: #0d6efd;
}

.contact-form textarea {
  height: 120px;
  resize: none;
}

.contact-info iframe {
  width: 100%;
  height: 200px;
  border: none;
  border-radius: 10px;
  margin-top: 15px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .contact-container {
    grid-template-columns: 1fr;
  }
}