*{
    padding: 0;
    margin: 0;
  }
  body{
      margin: 0;
      font-family: 'Times New Roman', Times, serif;
  }
  
  header{
    max-width: 100%;
    position: absolute;
    height: 90px;
    top: 0; 
    left: 0; 
    right: 0;
    background:#273b70;
    box-shadow: 0 5px 10px rgba(0, 0, 0, .1);
    padding: 10px 7%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 1000;
  }
      .mainlogo {
      display: flex;
      align-items: center;
    }
    
    .mainlogo img {
      height: 85px;
      width: auto;
      margin-right: 10px;
    }
    
    .mainlogo .logo {
      font-size: 1.8rem;
      font-weight: bold;
      color: #fff;
      text-decoration: none;
    }
    input[type="checkbox"] {
      display: none;
    }
    
    label[for="menu-bar"] {
      display: none;
      color: #fff;
      font-size: 1.5rem;
      cursor: pointer;
    }
    
    /* Show menu icon on smaller screens */
    label[for="menu-bar"] i {
      font-size: 1.8rem;
      cursor: pointer;
    }
  header .navbar ul {
    list-style: none; 
  }

  header .navbar ul li{
    position: relative;
    float: left;
  }

  header .navbar ul li a{
    color: #fff;
    display: block;
    padding:18px;
    font-size: 18px; 
    text-decoration: none;
 }

 header .navbar ul li a:hover{
    background: white;
    color: black;
 }
 header .navbar ul li ul{
  position: absolute;
  left:0;
  width:200px;
  background: #273b70;
  display: none;
 }
 header .navbar ul li ul li{
  width: 100%;
  /*border-top: 1px solid black;*/
 }
 header .navbar ul li ul li ul{
  left: 200px;
  top:0;
 }
 header .navbar ul li:focus-within > ul,
 header .navbar ul li:hover > ul{
  display:initial;
 }
  
  
  
  
  .cctv{
      background-color: #1a2351c4;
      color: #fff;
      margin: 50px;
      text-align: center;
      border-radius: 20px;
      height: 50px;
      margin-top: 150px;
  }
  .cctv h1{
      padding-top:7px;
  }
  main{
      display: flex;
      flex-wrap: wrap;
      margin: 20px;
      justify-content: center;
      margin-top: 100px;
  }
  .product{
      background-color: white;
      box-sizing: border-box;
      box-shadow: 0px 2px 6px rgba(0,0,0,0.3);
      margin: 60px;
      padding: 20px;
      width: 400px;
      height: 610px;
      border-radius: 20px;
  }
  .product h2{
      color: #333;
      font-size: 1.6em;
      margin: 20px;
      text-align: center;
  }
  .product img{
      display: block;
      margin: 0 auto;
      max-width:400px;
      height: 300px;
      border: 1px rgb(76, 66, 213) solid;
      background: white;
      border-radius: 10px;
  }
  .product:hover img{
    cursor: pointer;
    transform: scale(1.1);
  }

  .product p{
      color: #333;
      font-size: 1.6em;
      line-height: 1.5;
      margin: 15px 0;
      text-align: center;
      text-decoration: underline;
  }
  .price{
      color: #4c38a7;
      font-size: 1.1em;
      font-weight:bold;
      margin: 5px 0;
      text-align: left;
      margin-left: 85px;
  }

  
  footer{
    position: relative;
    margin-top:300px;
    max-width:100%;
    height: auto;
    padding: 50px 100px;
    background-color:#273b70;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
  }
  footer .container{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    flex-direction: row;
  }
  
  footer .container .sec{
    margin-right: 30px;
  }
  footer .container .sec.aboutus{
    width: 30%;
  }
  footer .container h2{
    position: relative;
    color: #fff;
    font-weight: 500;
    margin-bottom: 25px;
  }
  .sec.aboutus h2{
    font-size: 30px;
    margin-right: 200px;
  }
  .sec.aboutus h3{
    color:white ;
    font-size: 30px;
    margin-top:30px ;
  }
  footer .container  h2:before{
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 50px;
    height: 2px;
    background: rgb(36, 183, 228) ;
  }
  footer p{
    color: #999;
  }
  .sci{
    margin-top: 30px;
    display: flex;
  }
  .sci li{
    list-style: none;
  }
  .sci li a{
    display: inline-block;
    width: 40px;
    height: 40px;
    color: rgb(14, 10, 10);
    background:#faf9f9;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right:10px;
    text-decoration: none;
    border-radius: 20px;
  }
  .sci li a:hover{
    color: #123aa6;
    filter:grayscale(0);
    cursor: pointer;
    transform: scale(1.3);
  }
  .sci li a .fa{
    color: #fff;
    font-size: 20px;
  }
  .quicklinks{
    position: relative;
    width: 25%;
  }
  .quicklinks ul li{
    list-style: none;
    
  }
  .quicklinks ul li a{
    color:#999;
    text-decoration: none;
    display: inline-block;
    margin-bottom: 10px;
  }
  .quicklinks ul li a:hover{
    color:white ;
    cursor: pointer;
    transform: scale(1.3);
  }
  .contact{
    width: calc(35% - 60px);
    margin-right: 0 !important;
  }
  .contact .info{
    position: relative;
  }
  .contact .info li{
    display: flex;
    margin-bottom: 20px;
  }
  .contact .info li span:nth-child(1){
    color: #fff;
    font-size: 20px;
    margin-right: 15px;
  }
  .contact .info li span{
    color: #999;
  }
  .contact .info li a{
    color: #999;
    text-decoration: none;
  }
  .contact .info li a:hover{
    color: white;
  }
  .copyrighttext{
    max-width:100%;
    height:30px;
    background:#202e52;
  }
  .copyrighttext p{ 
    text-align: center;
    padding-top: 5px;
    color: #999;
    
  }
  
  
  @media screen and (max-width:991px){
      footer{
        padding: 40px;
      }
      footer .container{
        flex-direction: column;
      }
      footer .container .sec {
        margin-right: 0;
        margin-bottom: 40px;
      }
      footer .container .sec.aboutus,.quicklinks,.contact{
        width: 100%;
      }
      .copyrighttext {
         padding:8px 40px;
       }
       header{
          padding: 20px;
          height: 70px;
        }
           label[for="menu-bar"] {
            display: block;
        }    
        .mainlogo .logo{
          font-size: 25px;
        }
        header .navbar{
          position: absolute;
          top: 100%; left: 0; right: 0;
          background:#273b70;
          border-top:1px black solid ;
          display: none;
        }
        header .navbar ul li a{
          font-size: 15px;
        }
        header .navbar ul li{
          width: 100%;
        }
        header .navbar ul li ul{
          position: relative;
          width: 100%;
        }
        header .navbar ul li ul li{
          background: gray;
        }
        header .navbar ul li ul li ul{
          width: 100%;
        }
        #menu-bar:checked ~ .navbar{
          display: initial;
        }
        
      }