* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

a {
    text-decoration: none;
}

nav a {
    color: #ffffff;
    font-size: 16px;
    font-weight: bold;
    margin-left: 20px;
    text-decoration: none;
    transition: 0.7s;
}

nav a:hover {
    color: #e6e7e8;
    transition: 0.7s;
}

nav {
    background-color: #00A4FF;
    height: 100px;
    display: flex;
    align-items: center;
}

nav img {
    max-width: 300px;
    /* margin-left: 50px; */
}

body {
    background-color: #e6e7e8;
}

.primary-color {
    color: #00A4FF;
}

.heading-1 {
    color: #231f20;
    font-size: 60px;
    font-weight: 800;
}

.heading-2 {
    font-size: 43px;
    font-weight: 700;
    font-family: sans-serif;
}

.card-title {
    font-size: 20px;
    font-weight: 300;
    color: #231f20;
}

.desc-1 {
    color: #231f20;
    font-size: 16px;
    font-weight: 500;
    font-family: "Roboto", sans-serif;
}

.divider {
    background-color: #01A4FF;
    width: 100%;
    height: 5px;
}

/* contact page */
.contact {
    background-color: #fff;
    width: 100%;

}

input,
textarea {
    width: 100%;
    ;
    box-sizing: border-box;
    border-radius: 4px;
    box-shadow: rgba(233, 226, 226, 0.556) 0px 3px 8px;
    border: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    background-color: #fff;
    padding: 5px 0;
}

.contact-label {
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: #01A4FF;
}

.contact-heading {
    font-size: 30px;
}

.contact-button {
    background-color: #00A4FF;
    border: 1.5px solid #ffff;
    padding: 5px 20px;
    font-weight: 500;
    font-size: 17px;
    transition: 0.7s;
    box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;
}

.contact-button:hover {
    color: #000 !important;
    background-color: #fff !important;
    border: 1px solid #01A4FF;
}

.contact-page {
    box-shadow: rgba(50, 50, 93, 0.25) 0px 6px 12px -2px, rgba(0, 0, 0, 0.3) 0px 3px 7px -3px;
}

.contact-info {
    background: #00A4FF;
}

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.contact-icon span {
    font-size: 20px;
}

.contact-textarea {
    padding: 5px;
}

/* *books page  */
.btn {
    font-weight: 500;
    font-family: "Roboto", sans-serif;
    font-size: 16px;
}

.amazon-btn {
    background-color: #000000;
    color: #ffff;
    border: 1.5px solid #FF9900;
    transition: 0.7s;
}

.amazon-btn:hover {
    background-color: #FF9900;
    border: 1.5px solid #000000;
    transition: 0.7s;
    color: #ffff;
}

.audio-book-btn {
    background-color: #141414;
    border: 1.5px solid #ff8909;
    color: #ffff;
    transition: 0.7s;
}

.audio-book-btn:hover {
    background-color: #ff8909;
    border: 1.5px solid #000000;
    color: #ffff;
    transition: 0.7s;
}

.book-container {
    width: 70%;
    margin: 0 auto;
    height: 90%;
}

.cm-btn {
    background-color: #141C1C;
    color: #fff;
    border: 1.5px solid #ff8909;
    transition: 0.7s;
}

.cm-btn:hover {
    background-color: #ff8909;
    color: #fff;
    border: 1.5px solid #000000;
    transition: 0.7s;
}

.book-heading {
    font-size: 43px;
    font-weight: 700;
    font-family: sans-serif;
    color: #000000;
}

.books-img {
    height: 350px;
}

.bookshop-btn {
    color: #ffff;
    background-color: #01A4FF;
    border: 1.5px solid #ffff;
    transition: 0.7s;
    margin-bottom: 6px;
}

.bookshop-btn:hover {
    color: #01A4FF;
    background-color: #ffff;
    border: 1.5px solid #01A4FF;
    transition: 0.7s;
    margin-bottom: 6px;
}

.barnes-btn {
    color: #C7A54F;
    background-color: #575555;
    border: 1.5px solid #C7A54F;
    transition: 0.7s;
}

.barnes-btn:hover {
    color: #575555;
    background-color: #C7A54F;
    border: 1.5px solid #575555;
    transition: 0.7s;
}

.publisher-btn {
    color: #989A9C;
    background-color: #CE3828;
    border: 1.5px solid #989A9C;
    transition: 0.7s;
}

.publisher-btn:hover {
    color: #CE3828;
    background-color: #989A9C;
    border: 1.5px solid #CE3828;
    transition: 0.7s;
}

/* footer {

} */
footer {
    bottom: 0;
    width: 100%;
    background-color: #231f20;
    padding: 30px 0;
    text-align: center;
}

footer p {
    color: #e6e7e8;
}

footer a {
    color: #01A4FF;
    transition: 0.7s;
    font-size: 16px;
}

footer a:hover {
    color: #e6e7e8;
    transition: 0.7s;
}

.fontwesome-icon {
    color: #fff;
    font-size: 26px;
    margin-right: 10px;
    transition: all 0.5s;
}

.fontwesome-icon:hover {
    color: #01A4FF;
}

.img-fluid-responsive {
    max-width: 100%;
    height: auto;
}

@media screen and (max-width:1600px) {
    .heading-1 {
        color: #231f20;
        font-size: 50px;
        font-weight: 800;
    }

    .heading-2 {
        color: #231f20;
        font-size: 35px;
        font-weight: 700;
    }

    .card-title {
        font-size: 17px;
    }

    .book-container {
        width: 100%;
    }

    .contact-button {
        width: 100%;
    }
}

.home-book {
    width: 200px;
}

.book-cover-image {
    width: 80%;
}

.dropdown-toggle {
    color: #fff !important;
}

.book-container {
    position: relative;
    width: 100%;
    max-width: 300px;
}

.book-image {
    display: block;
    width: 100%;
    height: auto;
    transition: .5s ease;
}

.book-overlay {
    position: absolute;
    bottom: 0;
    background: rgb(0, 0, 0);
    background: rgba(0, 0, 0, 0.8);
    /* Black see-through */
    color: #ffffff;
    width: 100%;
    transition: .5s ease;
    opacity: 0;
    color: white;
    font-size: 20px;
    padding: 20px;
    text-align: center;
}

.book-image:hover {
    opacity: .8;
}
.book-container:hover .book-overlay {
    opacity: 1;
}