* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-size: unset;
}
html {
    font-size: 62.5%;
}

body {
    position: relative;
    font-size: 1.6rem;
    font-family: sans-serif;
    padding-top: 10rem;
}

dialog#myModal {
    margin-inline: auto;
    margin-top: 4rem;
    border: none;
}

dialog::backdrop {
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
  }
  

.modal-container {
  
    margin-inline: auto;
    width: 35rem;
    display: flex;
    flex-direction: column;
    color: darkgreen;
    gap: 1rem;
    background-color: #f3f3f3;  
    align-items: center;
    padding: 2rem 0;

}
.input-container {
    display: flex;
    flex-direction: column;
}

.checkbox-container {
    display: flex;
    gap: .5rem;
}
input[type="checkbox"] {
    height: 1.6rem;
    width: 1.6rem;
    accent-color: green;
}
input {
    border: .2rem solid grey;
}
input:user-valid {
    outline-color: green;
    border: .2rem solid darkgreen;
    color: green; 
}
input:user-invalid {
    border: .2rem solid darkred;
}
.input-container > button, .input-container > input, .checkbox-container {
    width: 28rem;
    padding: .5rem 1rem;
}

button {
    padding: .5rem 1rem;
}

table {
    margin-inline: auto;
    border-collapse: collapse;
    letter-spacing: 1px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.15);
    font-size: 1.6rem;
}
  
td, th {
    padding: 10px 10px;

  }
  
td {
    text-align: center;
  }
thead tr {
    background-color: #009879;
    color: #ffffff;
    font-weight: bold;
}

thead tr > th:last-of-type {
    overflow: hidden;
    border-radius: 0 1rem 0 0;

}
thead tr > th:first-of-type {
    border-radius:  1rem 0 0 0;
}
tbody tr:nth-child(even) {
    background-color: #f3f3f3;  
}

tr:last-of-type {
    border-bottom: .2rem solid #009879;
}
caption {
    padding: 10px;
}


.ReadBtn {
    color: white;
    background-color: darkgreen;
    width: 7rem;
}
.ReadBtn:hover, .addBook:hover, .addNewBook:hover {
    box-shadow: 0 0 15px rgba(30, 165, 48, 0.5);   
}
button {
    color: white;
    background-color: darkred;
    border-radius: 1rem;
    cursor: pointer;
}
.addNewBook {
    color: darkgreen;
    font-weight: bold;
    background-color: white;
    font-size: 1.5rem;
}

.addBook {
    background-color: darkgreen;
}

.header {
    display: flex;
    font-size: 1rem;
    justify-content: space-between;
    max-width: 50rem;
    margin-bottom: 1rem;
    margin-inline: auto;
    align-items: center;
}
.header-title {
    padding: 0;
    font-size: 2rem;
    color: darkgreen;
}

button:hover {
    box-shadow: 0 0 15px rgba(193, 65, 65, 0.5);   
}

@media only screen and (max-width: 425px) {
    

    body {
        width: 90%;
        margin: auto;
        padding-top: 2rem;
        padding-left: 1rem;
        padding-right: 1rem;
    }

    th, td {
        padding: 5px 5px;
    }
    table {
        font-size: 1.2rem;
    }

    .header {
        flex-direction: column;
        gap:1rem;
    }
    .ReadBtn {
        width: 5rem;
    }
}

@media only screen and (min-width: 768px) {
    html {
        font-size: 100%;
    }
    body {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}