a {
    text-decoration: none;
    color: inherit
}

h1 {
    color: var(--bs-white);
    opacity: 1;
    padding: 107px 0 40px 0;
    font-size: 30px;
    font-weight: 900;
    line-height: normal
}

p.heading-desc,.inner-container p,.heading-form {
    color: var(--bs-white);
    padding-bottom: 20px;
    font-size: 16px;
    font-weight: 400;
    line-height: 29px;
}

.inner-container p {
    width: 690px;
    text-align: justify
}

.logo-image {
    margin: 140px auto 0 auto;
    text-align: center
}

.text-container {
    width: 100%;
    margin: 12px auto;
    padding-bottom: 41px
}

#first-description .info-parent {
    margin-bottom: 15px
}

#first-description section.source {
    margin-bottom: 34px
}

.btn__container {
    position: absolute;
    bottom: -19px;
    width: 99%;
    display: flex;
    justify-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient( to bottom, #152670 0%, #152670a1 31%, rgb(21 38 112) 100% );
    align-items: center;
    padding: 16px
}

.inner-container {
    position: relative;
    padding-bottom: 60px;
    border-radius: 8px;
    box-shadow: 0 1px 4px 1px var(--bs-shadow-box-color);
    background: #15267000;
    padding: 16px;
    overflow: hidden;
    z-index: 9999
}

.btn__show {
    display: block;
    text-decoration: none;
    border: unset;
    background: transparent;
    z-index: 99999;
    cursor: pointer
}

.show-hide-description h2 {
    font-weight: bold;
    font-size: 20px;
    line-height: 21px
}

.show-hide-description h3 {
    font-weight: bold;
    font-size: 16px;
    line-height: 21px
}

.show-hide-description p {
}

.button-download-pdf {
    text-align: center;
    display: flex;
    flex-direction: column;
    width: 356px;
    gap: 16px;
    margin-bottom: 40px;
    background-color: #67cff3;
    color: var(--bs-white);
    padding: 14px 0 14px 0;
    font-size: 15px;
    line-height: 23px;
    border-radius: 6px;
    border: unset
}

main:before {
    content: "";
    position: absolute;
    top: 0%;
    left: 0;
    z-index: 9999;
    background: url(../images/Hardcover.png);
    width: 951px;
    height: 1001px;
    background-repeat: no-repeat
}

::-ms-input-placeholder {
    color: var(--bs-white)
}

::placeholder {
    color: var(--bs-white)
}

form {
    display: flex;
    flex-direction: column;
    width: 356px;
    gap: 16px;
    margin-bottom: 40px
}

form input {
    padding: 14px 21px 14px 0;
    font-size: 15px;
    line-height: 23px;
    font-family: 'IRANSansX';
    background: #3c4b88;
    border-radius: 6px;
    border: unset
}

input[type="submit"] {
    background-color: #67cff3;
    color: var(--bs-white);
    padding: 14px 0 14px 0
}

section.book-parent {
    margin-bottom: 0
}

@media screen and (max-width: 768px) {
    .inner-container p,.button-download-pdf {
        width:100%
    }
}

@media screen and (max-width: 1024px) {
    p.description {
        width:100%;
        font-size: 15px;
        line-height: 26px
    }
}

@media screen and (max-width: 1200px) {
    h1 {
        font-size:25px;
        line-height: 37px;
        padding: 50px 0 40px 0
    }

    .heading-form {
        text-align: center
    }

    .logo-image {
        padding-bottom: 19px
    }

    form {
        margin: 0 auto 40px;
        width: 100%
    }

    main:before {
        content: unset
    }
}