*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
    
  }
  nav{
    height: 80px;
    background-color: black;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0px 50px 0px 100px;
    
  }
  nav .logo{
    font-size: 33px;
    color: white;
    font-weight: 600px ;
    font-family: Georgia, 'Times New Roman', Times, serif;
  }
  nav ul{
    display: flex;
    list-style: none;
  
  }
  nav ul li{
    margin: 0px 25px;
  
  }
  nav ul li a{
    color: #fff;
    text-decoration: none;
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 1px;
    padding: 10px 20px  ;
    border-radius: 5px;
    transition: all 0.3s ease;
    text-align: center;
  }
  nav ul li a:hover{
    color: #1b1b1b;
    background-color: #fff;
  }
  nav ul li button{
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500px;
    letter-spacing: 1px;
    padding: 8px 15px ;
  
    border-radius: 50px;
    transition: all 0.3s ease;
    background-color: #337af1;
    align-items:center;
  
  
  }
  nav ul li button:hover{
    color: #1b1b1b;
    background-color: #fff;
  }
.head{
    height: 200px;
    margin-top: 20px;
}
.head h1{
    color: black;
    font-size: 48px;
    font-family: Arial, Helvetica, sans-serif;
    margin: 0px 00px 25px 350px;
    

}
.head p{
    color: #333;
    font-size: 20px;
    font-family: sans-serif;
    margin: 0px 220px 10px 200px;
}




/**box started**/

.exercise{
    display: flex;
    justify-content: space-evenly;
    margin-bottom: 20px;
  
}
.box{
    border: 2px solid  green;
    height: 400px;
    width: 25%;
    background-color:black;
    padding: 15px 0 15px ;
    margin-top: 15px;

 
}
.box-img{
    height: 300px;
    background-size: cover;
    margin-top: 10px;
    margin-bottom: 1rem;
    height: 250px;

}
.box-content{
    margin-left: 1rem;
    margin-right: 1rem;
 background-color: white;

}
.box-content h2{
    font-size: 35px;
    font-family: sans-serif;
    color: white;
    background-color: black ;
    margin-left: PX;
  
}
.box-content h3{
    height: 30px;
    color: #333;
    font-size: 20px;
    font-family: sans-serif;
    margin: 20px 10px 20px 10px;

}
.box p{
    font-size: 25px;
    font-family: Arial, Helvetica, sans-serif;
    height: 30px;
    color: #fefefe;

    background-color:#005599 ;
    margin-left: 15px;
    margin-right: 150px;
    margin-top: 30px;
    border-radius: ;
    border: 2px solid black;
   
    align-items: center;
    padding-left: 20px;
}
.box p a{
  color: whitesmoke;
  text-decoration: none;
}

.footer_container{
  background-color: #212329;
 
  padding: 2rem 0 4rem 0;

}

.footer {
  width: 60%;
  height: 30vh;
  background-color: #212329;
  color: white;
  display: flex;
  justify-content: space-evenly;
  flex-wrap: wrap;
  margin: 0 auto;
}
.footer_heading {
  display: flex;
  flex-direction: column;
  margin-right: 4rem;
}
.footer_heading h2{
  margin-bottom: 2rem;
}
.footer_heading a {
  color: white;
  text-decoration: none;
  margin-bottom: 0.5rem;
}
.footer_heading a:hover{
  color: red;
  transition: 0.3 ease-out;
}
.footer-email-form h2{
  margin-bottom: 2rem;
}
#footer-email {
  width: 250px;
  height: 40px;
  border-radius: 4px;
  outline: none;
  border: none;
  padding-left: 0.5rem;
  font-size: 1rem;
  margin-bottom: 1rem;

}
#footer-email ::placeholder{
  color: #b1b1b1;
}
#footer-email-btn {
  width: 100px;
  height: 40px;
  border-radius: 4px;
  background-color: #f9423d;
  outline: none;
  border: none;
  color: #fff;
  font-size: 1rem;
}
#footer-email-btn:hover{
  cursor: pointer;
  background-color: #337af1;
  transition: all 0.4s ease-out;
}
#button a{
  color: #fff;
  text-decoration: none;
}
.program{
  height: 20px;

}