style.css

*{
    box-sizing: border-box;
    margin: 0;
    padding:0;
}

body{
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: white;
    font-size: 15px;
    line-height: 1.5;
}

a{
    color:#262626;
    text-decoration: none;
}

ul{
    list-style: none;
}

.container{
    width: 90%;
    max-width:1100px;
    margin:auto;
}

.main-nav{
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    padding: 20px;
    font-size: 13px;
}

.main-nav .logo{
    width: 110px;
}

.main-nav ul{
    display: flex;

}

.main-nav ul li{
padding: 0 10px;
}
.main-nav ul li a{
    padding-bottom: 2px;
}
.main-nav ul li a:hover{
    border-bottom: 2px solid#262626;
}

.main-nav ul.main-menu{
    flex: 1;
    margin-left: 20px;
}
.button{
    cursor: pointer;
    display: inline-block;
    border: 0;
    font-weight: bold;
    padding: 10px 20px;
   
    background: #262626;
    color: white;
    font-size: 15px;
}

.button:hover{
    opacity: 0.9;
}

/*showcase  */
.showcase{
    width: 100%;
    height: 400px;
    background: url('https://i.ibb.co/zGSDGCL/slide1.png') no-repeat center center/cover;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    justify-content: flex-end;
    padding-bottom: 50px;
    margin-bottom: 20px;

}

.showcase h2, .showcase p{
    margin-bottom: 10px;
}

.showcase .button{
    margin-top: 20px;
}

/* Homepage*/
.home-cards{
    display: grid;
    grid-template-columns: repeat(4,1fr);
    grid-gap: 20px;
    margin-bottom: 40px;
}

.home-cards img{
     width: 100%;
     margin-bottom: 20px;
}

.home-cards h3{
    margin-bottom:5px ;
}

.home-cards a{
    display: inline-block;
    padding-top: 10px;
    color: #0067b8;
    text-transform: uppercase;
    font-weight: bold;
}


/*xbox*/
.xbox{
    width: 100%;
    height: 350px;
    background: url('https://i.ibb.co/tBJGPD9/xbox.png')no-repeat center center/cover;
    margin-bottom: 20px;
}
.xbox .content{
    width: 40%;
    padding: 50px 0 0 30px;
}

.xbox p{
    margin: 10px 0 20px;
}

/*carbon section*/

.carbon{
    width: 100%;
    height: 350px;
    background: url('https://i.ibb.co/72cgtsz/carbon.jpg') no-repeat center center/cover ;
}

.carbon .content {
    width: 55%;
    padding: 100px 0 0 30px;

}

/*follow*/
.follow{
    display: flex;
    align-items: center;
    justify-content: flex-start;
    margin: 30px 0 30px;
}
.follow *{
    margin-right: 10px;
}

/*Links*/
.links{
    background: #f2f2f2;
    color: #616161;
    font-size: 12px;
    padding: 35px 0;

}

.links-inner{
    max-width: 1100px;
    margin: 0 20px;
    display: grid;
    grid-template-columns: repeat(6,1fr);
    grid-gap: 10px;
    align-items: flex-start;
    justify-content: center;
}

.links li{
    line-height: 2.8;
}

/*footer*/
.footer{
     background: #f2f2f2;
     color: #616161;
     font-size: 12px;
     padding: 20px 0;
}

.footer-inner{
     max-width: 1100px;
     margin: 0 auto;
     padding: 0 20px 0 20px;
     display: flex;
     align-items: center;
     justify-content: space-between;

}

.footer div{
    margin-bottom: 20px;
    display: flex;
    align-items: center;
}

.footer div i{
    margin-right: 10px;
}
.footer ul{
    display: flex;
    flex-wrap: wrap;
}

.footer li{
    margin-right: 30px;
    margin-bottom: 20px;
}

@media(max-width: 700px){
    .home-cards{
        grid-template-columns: repeat(2, 1fr);
    }

    .xbox .content h2{
        margin-bottom: 20px;
    }

    .xbox .content p{
        display: none;
    }

    .carbon .cintent{
        width: 85%;
    }
    
    .links .links-inner{
        grid-template-columns: repeat(2, 1fr);
    }

}

@media(max-width: 500px){
    .home-cards{
        grid-template-columns: 1fr;
    }

    .links .links-inner{
        grid-template-columns: 1fr;
    }

    .links .links-inner ul{
        margin-bottom: 20px;
    }
}




@media(max-width: 700px) {
    .menu-btn {
      display: block;
    }
  
    .menu-btn:hover {
      opacity: 0.5;
    }
  
    .main-nav ul.right-menu {
      margin-right: 50px;
    }
  
    .main-nav ul.main-menu {
      display: block;
      position: absolute;
      top:0;
      left: 0;
      background: #f2f2f2;
      width: 50%;
      height: 100%;
      border-right: #ccc 1px solid;
      opacity: 0.9;
      padding: 30px;
      transform: translateX(-500px);
      transition: transform 0.5s ease-in-out;
    }
  
    .main-nav ul.main-menu li {
      padding: 10px;
      border-bottom: #ccc solid 1px;
      font-size: 14px;
    }
  
    .main-nav ul.main-menu li:last-child {
      border-bottom: 0;
    }
  
    .main-nav ul.main-menu.show {
      transform: translateX(-20px);
    }
}