main {
      padding: 20px;
       background: linear-gradient(to right, #f1f8e9, #c8e6c9);
    }
    p{
        font-size: 15px;
        margin-bottom: 15px;
    }
    h3{
        font-size: 20px;
    }

    .intro {
      background-color: #81c784;
      text-align: center;
      margin-top: 90px;
      padding-bottom: 15px;
    }

    .intro h2 {
      margin-bottom: 10px;
      margin-top: 10px;
      font-size: 20px;
      padding-top: 15px;
    }

    .intro button {
      background-color: #2e7d32;
      color: white;
      border: none;
      padding: 10px 20px;
      margin-top: 15px;
      border-radius: 5px;
      cursor: pointer;
      font-size: 16px;
    }

     .intro a {
      background-color: #2e7d32;
      color: white;
      border: none;
      padding: 10px 20px;
      margin-top: 15px;
      border-radius: 5px;
      cursor: pointer;
      font-size: 16px;
    }

    .intro button:hover {
      background-color: #739665;
    }

    .details, .contact {
      background-color: #ffffff;
      padding: 20px;
      border-radius: 8px;
    
    }

    ul {
      list-style-type: none;
      padding-left: 0;
    }

    ul li {
      padding: 8px 0;
      font-size: 15px
    }

 /* google font   */
  @import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,100;1,300;1,400;1,500;1,700;1,900&display=swap');

  /* root color  */
  :root{
    --blue:#0188df;
    --black:#444d53;
    --wight:#fff;
  }

  /* custom css  */
  *{
    font-family: "Roboto", sans-serif;
    margin: 0; padding: 0;
    text-decoration: none;
    text-transform: capitalize;
    outline: none;
    box-sizing: border-box;
    transition: all linear .2s;
  }

  html{
    font-size: 62.5%;
    overflow-x: hidden;
  }

 /* button  */
 .button{
    height: 3.5rem;
    width: 15rem;
    background: var(--blue);
    color: var(--wight);
    font-size: 1.7rem;
    text-transform: capitalize;
    border-radius: .5rem;
    cursor: pointer;
    margin: 1rem 0;
    border: .1rem solid var(--blue);
 }

 .button:hover{
    border: .1rem solid var(--blue);
    background: var(--wight);
    color: var(--blue);
    letter-spacing: .2rem;
 }

 /* heading  */
.heading{
    text-align: center;
    font-size: 4rem;
    padding: 1rem;
    padding-top: 8rem;
    color: #1b5e20;
    letter-spacing: .1rem;
}
 /* title  */
.title{
    text-align: center;
    padding: 0rem 1rem;
    font-size: 2.5rem;
    color: var(--black);
    font-weight: 300;
}



  /* header navbar section start  */

  header{
    width: 96%;
    background: rgba(46, 125, 50, 0.9);
    position:fixed;
    top: 2rem;
    left: 50%;
    transform: translate(-50%);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    z-index: 1000;
  }

  /* logo name  */
  header a{
    color: var(--black);
  }

  header a:hover{
    color:#1b5e20 ;
  }

  header .logo{
    font-size: 3rem;
    color: white;
  }

  header .logo span{
    color: #1b5e20;
    font-weight: bolder;
  }

  /* navbar link  */
  header .navbar ul{
    display: flex;
    align-items: center;
    justify-content: space-between;
    list-style: none;
  }

  header .navbar ul li{
    margin: 0 1rem;
  }

  header .navbar ul li a{
    font-size: 2rem;
    color: white;
  }

  header .navbar ul li a:hover{
    color: #1b5e20;
    font-weight: bolder;
  }

 header .fa-bars{
    font-size: 3rem;
    color: var(--blue);
    cursor: pointer;
    display: none;
 }

 header .fa-times{
    transform: rotate(180deg);
 }


 .header-active{
    top: 0;
    width: 100%;
    box-shadow: .1rem .3rem rgba(0,0,0,.3);
 }



  /* header navbar section end  */





  /* footer section start  */
 .footer{
  background: var(--black);
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  padding: 2rem 0;
 }

 .footer .box{
  width: 30rem;
  margin: 2rem;
  text-align: center;
 }

 .footer .box:nth-child(1){
  text-align: left;
 }

/* logo  */

.footer .box .logo{
  padding: 2rem 0;
  font-size: 3rem;
  color: var(--wight);
}

.footer .box .logo:hover{
  color: var(--blue);
}

.footer .box .logo span{
  color: var(--blue);
}

.footer .box p{
  font-size: 1.5rem;
  color: var(--wight);
}

.footer .box a{
  color: var(--wight);
  font-size: 2rem;
  display: block;
  padding: .2rem 0;
}

.footer .box a:hover{
  text-decoration: underline;
}


.footer .credit{
  width: 85%;
  padding-top: 1rem;
  font-size: 2rem;
  color: var(--wight);
  text-align: center;
  border-top: .2rem solid var(--wight);
}

.footer .credit span{
  color: var(--blue);
  text-decoration: underline;
  letter-spacing: .5rem;
}



  /* footer section end  */

















  /* media query  */

  @media (max-width:768px){

    html{
        font-size: 55%;
    }

    header .fa-bars{
        display: block;
    }
    
    header .navbar{
        position: fixed;
        top: -100rem; left: 0;
        width: 100%;
        background: var(--wight);
        opacity: 0;
    }

    header .navbar ul{
        flex-flow: column;
        padding: 2rem 0;
    }

    header .navbar ul li{
        margin: 1rem 0;
        width: 100%;
        text-align: center;
    }

    header .navbar ul li a{
        font-size: 3rem;
        display: block;
    }

    header .nav-toggle{
        top: 5.5rem;
        opacity: 1;
    }

    /* home media query  */

    .home .row{
        flex-flow: column;
    }

    .home .row .content{
        text-align: center;
    }

    /* home images  */
    .home .row .images img{
        width: 100%;
    }

  /* about media query  */
   .about .box-container .box{
    flex-flow: column;
    width: 90%;
   }

   .about .box-container .box:nth-child(even){
    flex-flow: column;
   }

   .about .box-container .box .images{
    width: 100%;
   }

   .about .box-container .box .content{
    width: 100%;
   }
   
   /* contact form  */
   .contact .row{
    flex-flow: column;
   }

   .contact .row .images img{
    height: 50vh;
    width: 90vw;
   }

   .contact .row .form-container{
    width: 90%;
    padding: 0;
   }
  }