*{
  margin: 0 ;
  padding: 0 ;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

.header{
  width: 100% ;
  min-height: 50vh ;
  background-image: linear-gradient(rgba(0 , 0 , 25 , 0.65) , rgba(0 , 0,25,0.65)) , url('../images/background.jpg');
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  position: relative;
}

.logo{
  width: 160px ;
}

nav{
  display: flex;
  justify-content: space-between;
  padding: 1.5% 5% ;
  align-items: center;
  text-align: center;
}

.nav_links{
  flex : 1 ;
  text-align: right;
}

.nav_links ul li{
  list-style: none;
  padding: 8px 15px ;
  display: inline-block;
}

.nav_links ul li a{
  color: white ;
  text-decoration:none;
  text-transform: uppercase;
  font-size: 15px ;
}

.nav_links ul li a::after{
  content: '' ;
  width: 0% ;
  height: 2px ;
  background-color: #f44336 ;
  display: block ;
  margin: auto;
  transition: 0.5s ;
}

.nav_links ul li a:hover::after{
  width: 100% ;
}

.content{
  width: 100% ;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50% , -50%);
  text-align: center;
  color: white ;
}

.main_head{
  font-size: 2rem ;
  margin-bottom: 15px ;
}

.fun{
  display: none ;
  width: 20px ;
}

@media (max-width : 500px) {
  .logo{
    width: 130px ;
    margin-top: 10px ;
  }

  .nav_links{
    position: absolute;
    width: 200px ;
    background-color:  #f44336 ;
    height: 100vh ;
    top: 0 ;
    right: -200px ;
    z-index: 2 ;
    transition: 0.5s ;
  }

  .fun{
    display: block ;
    margin: 12px ;
  }

  .nav_links ul li{
    display: block ;
    text-align: left ;
  }

  .nav_links ul{
    padding: 20px ;
  }

  .main_head{
    font-size: 1.5rem ;
  }
}

/* Certificates */

.certificates{
  width: 80% ;
  height: auto ;
  display: flex ;
  margin: auto ;
  padding: 100px 0;
}

.certificates img{
  height: 500px ;
}

.certificates p{
  color : grey ;
  padding: 15px 0 ;
}

.certificates h3{
  padding: 15px 0 ;
  font-size: 1.5rem ;
  font-weight: 600 ;
}

.certificates_left{
  width: 70% ;
}

.table_head{
  text-align: center;
  margin-bottom: 10px ;
  background-color: #f44336 ;
  color: white ;
  font-weight: 500 ;
  padding: 5px ;
}

table{
  width: 100% ;
}

.Certificates_right{
  width: 35% ;
  overflow: hidden;
}

td{
  padding: 10px 0 ;
  color : #5a5959 ;
}

.formss{
  border: 1px solid grey ;
  padding-left: 25px ;
  margin-top: 20px ;
}

input , textarea{
  display: block ;
  padding: 15px 8px;
  width: 90% ;
  margin-bottom: 20px ;
  background-color: #efefef ;
  border: 0 ;
  outline: none ;
}

 textarea:hover{
  border: 0;
}

.post_btn{
  padding: 10px 20px ;
  margin-bottom: 15px ;
  border: 1px solid #f44336 ;
  color : #f44336 ;
  transition: 0.5s ;
  cursor: pointer;
}

.post_btn:hover{
  background-color: #f44336 ;
  color : white ;
}

.formss h3{
  font-size: 1.25rem ;
}

@media (max-width : 500px) {

  .certificates{
    flex-direction: column;
    padding: 80px 0 ;
  }

  .certificates img{
    height: 200px ;
  }

  .certificates_left{
    width: 100% ;
  }

  .certificates h3{
    padding: 15px 0 ;
    font-size: 1rem ;
    font-weight: 600 ;
    text-align: center;
  }

  .certificates p{
    line-height: 20px ;
    font-size: 0.9rem ;
  }

  .Certificates_right{
    width: 100% ;
    margin-top: 50px ;
  }
}

/* Footer */
footer{
  width: 60% ;
  height: 32vh ;
  color: black ;
  margin: 4rem auto 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.social_media{
  display: flex;
  justify-content: center;
}

.social_media a img{
  height: 17px;
}

.social_media a{
  padding: 20px ;
  margin-bottom: 10px ;
}

footer h3{
  margin-bottom: 2rem ;
}

footer p{
  color : grey ;
  font-size: 0.9rem ;
  margin-bottom: 1.2rem ;
}

@media (max-width : 500px) {
  footer{
    width: 85% ;
  }
}