*{
    margin: 0;
    padding: 0;
}
body{
    font-family: "Poppins", sans-serif;
  font-weight: 200;
  font-style: normal;
}
.navbar{
    background-color: rgb(227, 134, 134);
    padding: 10px;
   border-radius:10px 10px 0px 0px;

}
.container{
    margin-top: 2%;
    padding: 20px;
}
.book-container{
    width: 18%;
    background-color: rgb(44, 42, 42);
    color:white;
    border-radius: 5px;
    padding: 10px;
    display: inline-block;
    vertical-align: top;
    margin: 10px;
}
button{
    background-color: rgb(227, 134, 134) ;
    color: black;
    padding: 5px 10px;
    border-radius: 5px;
    border: none;
    margin-top: 5px;
    cursor: pointer;
}
.round{
    border-radius: 100%;
    position: fixed;
    bottom: 100px;
    right: 100px;
    font-size: 50px;
    padding: 10px 25px;
}
.overlay{
    background-color: black;
    position: absolute;
    top:0;
    left:0;
    width: 100%;
    height: 100%;
    opacity: 0.8    ;
    z-index: 1;
    display: none;
}
.popup-box{
    position: absolute;
    width: 30%;
    background-color:  rgb(227, 134, 134);
    color: black;
    padding: 10px;
    border-radius: 10px;
    left: 35%;
    z-index: 2;
    display: none;
    top:30%;

}
.popup-box input{
    background: transparent;
    border: none;
    width: 95%;
    border-bottom:1px solid black;
    margin: 10px;
    height: 20px;
}
.popup-box textarea{
    background: transparent;
    border: none;
    width: 95%;
    border:1px solid black;
    margin: 10px;
    height: 50px;
}
.popup-box input::placeholder{
    color: black;
    padding-bottom: 30px;
    font-size: 12px;
}
.popup-box textarea::placeholder{
    color: black;
    padding-bottom: 30px;
    font-size: 12px;
    
}
.popup-box button
{
    background-color:black ;
    color:white;
    padding: 7px 14px;
    border: none;
    margin-top: 5px;
    cursor: pointer
}
.popup-box input:focus{
    outline: none;
}
.popup-box textarea:focus{
    outline: none;
}


@media screen and (max-width:1500px) 
{
    .book-container {
        width:40%;
        
    }
    .popup-box{ 
        width: 70%;
        left: 12%;
        top:20%;
    }
    .round{
        bottom:100px;
        right: 100px; 
    }
}           

@media screen and (max-width:800px) 
{
    .book-container {
        width:80%;
       
    }
    .popup-box{
        width: 70%;
        left: 12%;
        top:20%;
    }
    .round{
        bottom:50px;
        right: 3px; 
    }
}   

@media screen and (max-width:480px) 
{
    .book-container {
        width:70%;
    }
    .popup-box{
        width: 70%;
        left: 12%;
        top:20%;
    }   
    .round{
        bottom:50px;
        right: 3px; 
    }
}