/* General styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  /* Top header styles */
  #top-header {
    background-color: #f2f2f2;
    height: 100px;
    padding: 0 20px;
  }
  
  .container {
    max-width: 1000px;
    margin: 0 auto;
  }
  
  .flex-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  #logo img {
    width: 80px;
  }
  
  .search {
    margin-left: 180px;
  }
  
  .search input[type="text"] {
    padding: 8px;
    border-radius: 5px;
    border: 1px solid #ccc;
    width: 400px;
  }
  
  #search-btn {
    background-color: #940707;
    color: #fff;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
  }
  
  .sign-login {
    margin-left: 50px;
  }
  
  .sign-login a {
    text-decoration: none;
    color: #333;
  }
  
  .cart i {
    font-size: 24px;
  }
  
  /* Main menu styles */
  .main-menu {
    background-color: #940707;
    padding: 10px;
    text-align: center;
  }
  
  .main-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
  }
  
  .main-menu ul li {
    position: relative;
    margin: 0 15px;
  }
  
  .main-menu ul li a {
    text-decoration: none;
    display: block;
    padding: 10px 20px;
    color: #fff;
  }
  
  .main-menu .sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: #940707;
    z-index: 1000;
  }
  
  .main-menu .sub-menu .sub-menu {
    top: 0;
    left: 100%;
  }
  
  .main-menu li:hover > .sub-menu {
    display: block;
  }
  
  .sub-menu li a {
    padding: 5px 20px;
  }
  
  /* Product details styles */
  .product-container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    margin-top: 20px;
  }
  
  .image-container img {
    max-width: 400px;
    width: 100%;
    height: auto;
    border: 1px solid #ccc;
    border-radius: 10px;
  }
  
  .details-container {
    margin-left: 40px;
    max-width: 500px;
  }
  
  .details-container h4 {
    font-size: 24px;
    color: #333;
    margin-bottom: 10px;
    height: 50px;
  }
  
  .price {
    font-size: 20px;
    color: #e60000;
    margin-bottom: 5px;
  }
  
  .original-price {
    font-size: 16px;
    color: #888;
    text-decoration: line-through;
  }
  
  .description {
    margin-bottom: 20px;
  }
  .description p {
    height: 200px;
  }
  #soluong {
    width: 30px;
    margin: 0px 10px;
  }
  .quantity {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
  }
  
  .quantity label {
    margin-right: 10px;
  }
  
  .quantity-control button {
    padding: 5px 10px;
    border: 1px solid #ccc;
    background-color: #fff;
    cursor: pointer;
  }
  
  .quantity-control span {
    padding: 5px 15px;
    margin: 0 5px;
  }
  
  .buy {
    display: flex;
  
    align-items: center;
  }
  
  .buy-btn {
    border: 1px solid black;
    width: 100%;
    padding: 10px 0;
    background-color: white;
    color: #fff;
    text-align: center;
  
    border-radius: 5px;
    cursor: pointer;
    margin: 10px 20px 0px 0px;
  }
  
  .buy-btn button {
    border: none;
    background: none;
    cursor: pointer;
  }
  
  .featured-title {
    text-align: center;
    margin: 40px 0 20px;
    color: #8f0505b1;
  }
  
  #related-products-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
  }



  .featured-products {
    overflow: hidden;
  }
  
  #related-products-container {
    display: flex;
    animation: slide 20s linear infinite; /* Thời gian và kiểu chạy */
  }
  
  @keyframes slide {
    0% {
      transform: translateX(0%);
    }
    100% {
      transform: translateX(-100%);
    }
  }
  
  .featured-products img {
    width: 150px;
    height: 150ps;
    margin-right: 20px;
  }