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

@font-face {
    font-family: 'Iran-Yekan';
    src: url("../core/font/Iran-Yekan/woff2/IRANYekanWebRegular.woff2") format('woff2');
}

@font-face {
    font-family: 'Doran';
    src: url("../core/font/Doran/woff2/Doran-Bold.woff2") format('woff2');
}

body {
    font-family: Iran-Yekan, "Helvetica Neue", Helvetica, Arial, sans-serif;
    scroll-behavior: smooth;
}

a {
    text-decoration: none;
}

#headerSection {
    background-image: url("../images/png/header-bg.png");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    height: 100vh;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

#headerSection .title-box {
    position: absolute;
    top: 45%;
    left: 50%;
    transform: translate(-50%, -50%);
}

#headerSection .title-box h1 {
    font-family: Doran;
}

#headerSection .navbar-box {
    margin-top: 20%;
}

#headerSection .navbar-box nav .navbar-nav .nav-item {
    transition: border-bottom;
    /*transition: transform border-bottom;*/
}

#headerSection .navbar-box nav .navbar-nav .nav-item:hover {
    /*transform: scale(1.01, 1.01);*/
    border-bottom: 1px solid #0c4128;
}

#headerSection .navbar-box nav .navbar-nav .nav-item a {
    font-size: 0.9rem;
    color: #0b0b0b;
}

#aboutUsSection .right-box .title-box h4 {
    color: #557670;
}

#aboutUsSection .right-box .title-box h4:before {
    content: url("../images/svg/qoute-icon.svg");
    margin-left: 0.5rem;
}

#aboutUsSection .right-box .description-box p {
    color: #0b0b0b;
    font-size: 0.9rem;
    text-align: justify;
    line-height: 1.8rem;
}

#aboutUsSection .left-box {
    background-repeat: no-repeat;
    background-size: contain;
    mask-image: url('../images/svg/about-us-frame.svg');
    mask-repeat: no-repeat;
    mask-position: center;
    mask-size: contain;
}

#aboutUsSection .left-box img {
    width: -webkit-fill-available;
}

#departmentSection .department-box {
    transition: transform 0.3s;
}

#departmentSection .department-box:hover {
    transform: scale(1.05, 1.05);
}

#newsSection .title-box h4,
#membersSection .title-box h4,
#mediaArchiveSection .title-box h4,
#membersPageSection .title-box h4 {
    color: #557670;
}

#newsSection .right-box .top-box .image-box img {
    border-radius: 5px;
    transition: transform 0.3s;
}

#newsSection .right-box .top-box .image-box img:hover {
    transform: scale(1.05, 1.05);
}

#newsSection .right-box .top-box h5 {
    color: #557670;
}

#newsSection .right-box .top-box p {
    font-size: 0.9rem;
    line-height: 1.8rem;
    text-align: justify;
}

#newsSection .right-box .top-box .first-link:after {
    content: url("../images/svg/left-arrow-icon.svg");
    margin-right: 0.5rem;
    vertical-align: sub;
}

#newsSection .right-box .bottom-box .gallery-box {
    transition: transform 0.3s;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

#newsSection .right-box .bottom-box .gallery-box .overlay {
    position: absolute;
    top: 0;
    left: 1rem;
    width: 85%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: opacity 0.5s;
    display: flex;
    justify-content: center;
    align-items: center;
}

#newsSection .right-box .bottom-box .gallery-box:hover .overlay,
#gallerySection .gallery-box:hover .overlay {
    transform: scale(1.05, 1.05);
    opacity: 1;
}

#newsSection .right-box .bottom-box .gallery-box img {
    width: 100%;
    height: 100%;
    border-radius: 3px;
}

#newsSection .left-box .news-box .right-box img {
    width: 100%;
    transition: transform 0.3s;
    border-radius: 5px;
}

#newsSection .left-box .news-box .right-box img:hover {
    transform: scale(1.05, 1.05);
}

#newsSection .left-box .news-box .left-box .title-box {
    height: 3rem;
}


#newsSection .left-box .news-box .left-box .title-box a {
    color: #557670;
    line-height: 1.5rem;
    font-size: 1rem;
}

#newsSection .left-box .news-box .left-box .description-box {
    height: 8rem;
}

#newsSection .left-box .news-box .left-box .description-box a {
    font-size: 0.8rem;
    line-height: 1.5rem;
    text-align: justify;
}

#newsSection .left-box .news-box .left-box .link-box {
    height: 2rem;
}

#newsSection .left-box .news-box .left-box .link-box a:after {
    content: url("../images/svg/left-arrow-icon.svg");
    margin-right: 0.5rem;
    vertical-align: sub;
}

#membersSection .member-box,
#membersPageSection .tab-content .tab-pane .member-box {
    transition: transform 0.3s;
}

#membersSection .member-box:hover,
#membersPageSection .tab-content .tab-pane .member-box:hover {
    transform: scale(1.05, 1.05);
}

#membersSection .member-box .image-box,
#membersPageSection .tab-content .tab-pane .member-box .image-box {
    background-repeat: no-repeat;
    background-size: contain;
    mask-image: url('../images/svg/member-image-frame.svg');
    mask-repeat: no-repeat;
    mask-position: center;
    mask-size: contain;
}

#membersSection .member-box span,
#membersPageSection .tab-content .tab-pane .member-box span {
    font-size: 0.8rem;
    color: #6E7977;
}

#quoteSection .bottom-box p {
    font-size: 0.9rem;
    line-height: 1.5rem;
}

#footerSection {
    background-image: url("../images/png/footer-bg.png");
    background-size: 100%;
    background-position: center;
    background-repeat: no-repeat;
    padding-top: 21.5rem;
    position: relative;
}

#footerSection .top-box {
    position: absolute;
    top: 60%;
}

#footerSection .top-box h6 {
    font-size: 0.9rem;
}

#footerSection .middle-box {
    position: absolute;
    top: 75%;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
}

#footerSection .bottom-box {
    position: absolute;
    top: 90%;
}

#footerSection .bottom-box p {
    font-size: 0.8rem;
}

#mediaArchiveSection .nav-pills,
#membersPageSection .nav-pills {
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
}

#mediaArchiveSection .nav-pills .nav-item .active,
#membersPageSection .nav-pills .nav-item .active {
    padding-bottom: 1.3rem;
    border-bottom: 2px solid #000000;
}

#mediaArchiveSection .nav-pills .nav-item .sound-tab-link:before,
#membersPageSection .nav-pills .nav-item .sound-tab-link:before {
    content: url("../images/svg/sound-tab-icon.svg");
    margin-left: 0.5rem;
    vertical-align: -webkit-baseline-middle;
}

#mediaArchiveSection .nav-pills .nav-item .article-tab-link:before,
#membersPageSection .nav-pills .nav-item .article-tab-link:before {
    content: url("../images/svg/article-tab-icon.svg");
    margin-left: 0.5rem;
    vertical-align: -webkit-baseline-middle;
}

#mediaArchiveSection .tab-content .tab-pane,
#membersPageSection .tab-content .tab-pane {
    max-height: 30rem;
    overflow-y: scroll;
}

#mediaArchiveSection .tab-content .tab-pane::-webkit-scrollbar,
#membersPageSection .tab-content .tab-pane::-webkit-scrollbar {
    width: 6px;
}

#mediaArchiveSection .tab-content .tab-pane::-webkit-scrollbar-thumb,
#membersPageSection .tab-content .tab-pane::-webkit-scrollbar-thumb {
    border-radius: 10px;
    box-shadow: inset 0 0 6px rgb(0 0 0 / 30%);
    background-color: #557670;
    float: right;
}

#mediaArchiveSection .tab-content .tab-pane::-webkit-scrollbar-track,
#membersPageSection .tab-content .tab-pane::-webkit-scrollbar-track {
    padding: 1px 0;
    background-color: #ebebeb;
    border-radius: 10px;
}

#mediaArchiveSection .tab-content .tab-pane .media-box {
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: 10px;
}

#mediaArchiveSection .tab-content .tab-pane .media-box .right-box img {
    border-radius: 10px;
}

#soundSection .right-box .media-box .right-box img,
#articleSection .right-box .media-box .right-box img {
    width: 100%;
    border-radius: 10px;
}

#mediaArchiveSection .tab-content .tab-pane .media-box .left-box .top-box a,
#soundSection .right-box .media-box .left-box .top-box a,
#articleSection .right-box .media-box .left-box .top-box a {
    font-size: 1.3rem;
}

#mediaArchiveSection .tab-content .tab-pane .media-box .left-box .top-box span,
#soundSection .right-box .media-box .left-box .top-box span,
#articleSection .right-box .media-box .left-box .top-box span {
    font-size: 0.8rem;
    color: #557670;
}

#mediaArchiveSection .tab-content .tab-pane .media-box .left-box .middle-box a,
#soundSection .right-box .media-box .left-box .middle-box p,
#soundSection .right-box .sounds-box-section .sound-box p,
#articleSection .right-box .media-box .left-box .middle-box p {
    font-size: 0.9rem;
    color: #557670;
    line-height: 1.5rem;
}

#mediaArchiveSection .tab-content .tab-pane .media-box .left-box .middle-box p,
#soundSection .right-box .media-box .left-box .middle-box p,
#soundSection .right-box .sounds-box-section .sound-box p,
#articleSection .right-box .media-box .left-box .middle-box p {
    text-align: justify;
}

#mediaArchiveSection .tab-content .tab-pane .media-box .left-box .bottom-box span,
#soundSection .right-box .media-box .left-box .bottom-box span,
#articleSection .right-box .media-box .left-box .bottom-box span {
    font-size: 0.9rem;
}

#mediaArchiveSection .tab-content .tab-pane .media-box .left-box .bottom-box a:after {
    content: url("../images/svg/left-arrow-circle-icon.svg");
    margin-right: 0.5rem;
    vertical-align: text-top;
}

#mediaArchiveSection .tab-content .tab-pane .media-box .left-box .bottom-box img,
#soundSection .right-box .media-box .left-box .bottom-box img,
#articleSection .right-box .media-box .left-box .bottom-box img {
    height: 3rem;
    border-radius: 50%;
}

#soundSection .right-box,
#articleSection .right-box,
#soundSection .left-box,
#articleSection .left-box {
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: 10px;
}

#soundSection .right-box .media-box .right-box,
#articleSection .right-box .media-box .right-box,
#soundSection .right-box .media-box .left-box,
#articleSection .right-box .media-box .left-box {
    border: none;
}

#soundSection .right-box .media-box .left-box .middle-box,
#articleSection .right-box .media-box .left-box .middle-box {
    height: 7rem;
}

#soundSection .right-box .content-box,
#articleSection .right-box .content-box {
    border-bottom: 1px dotted rgba(0, 0, 0, 0.2);
}

#soundSection .right-box .content-box,
#articleSection .right-box .content-box {
    border-bottom: 1px dotted rgba(0, 0, 0, 0.2);
}

#soundSection .right-box .sounds-box-section .sound-box,
#articleSection .right-box .download-box {
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: 5px;
    transition: transform 0.3s;
}

#soundSection .right-box .sounds-box-section .sound-box:hover,
#articleSection .right-box .download-box:hover {
    transform: scale(1.01, 1.01);
}

#soundSection .right-box .sounds-box-section .sound-box .middle-box audio {
    width: 100%;
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    background-color: #f4f4f4;
    padding: 5px;
}

#soundSection .right-box .sounds-box-section .sound-box .middle-box audio::-webkit-media-controls-play-button,
#soundSection .right-box .sounds-box-section .sound-box .middle-box audio::-webkit-media-controls-volume-slider,
#soundSection .right-box .sounds-box-section .sound-box .middle-box audio::-webkit-media-controls-mute-button,
#soundSection .right-box .sounds-box-section .sound-box .middle-box audio::-webkit-media-controls-fullscreen-button {
    border-radius: 5px;
}

#soundSection .left-box .title-box,
#articleSection .left-box .title-box {
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
}

#soundSection .left-box .sound-box img,
#articleSection .left-box .article-box img {
    width: 100%;
}

#soundSection .left-box .sound-box span,
#articleSection .left-box .article-box span {
    font-size: 0.8rem;
    color: #6E7977;
}

#gallerySection .title-box h4 {
    color: #557670;
}

#gallerySection .main-image-box img {
    width: 100%;
}

#gallerySection .gallery-box {
    position: relative;
}

#gallerySection .gallery-box img {
    width: 100%;
}

#gallerySection .gallery-box .overlay {
    position: absolute;
    top: 1rem;
    left: 1rem;
    width: 91%;
    height: 91%;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: opacity 0.5s;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

@media (max-width: 576px) {

    #headerSection .navbar-box nav .navbar-collapse {
        position: absolute;
        top: 4rem;
        background-color: #ffffff;
        width: 90vw;
        z-index: 1;
    }

    #aboutUsSection .right-box .title-box h4:before {
        vertical-align: sub;
    }

    #headerSection .title-box {
        top: 51%;
        /*width: 12rem;*/
    }

    #headerSection .navbar-box {
        margin-top: 70%;
    }

    #aboutUsSection .right-box {
        margin-bottom: 3rem;
    }

    #departmentSection .department-box {
        margin-top: 2rem;
    }

    #membersSection .member-box {
        margin-top: 2rem;
    }

    #quoteSection img {
        height: 15rem;

    }

    #quoteSection .bottom-box p {
        text-align: justify;
    }

    #footerSection {
        background-image: url("../images/png/footer-res-bg.png");
        background-size: cover;
        top: 3rem;
    }

    #footerSection .middle-box {
        top: 75%;
    }

    #footerSection .bottom-box p {
        font-size: 0.7rem;
    }
}

@media (min-width: 577px) and (max-width: 767.98px) {
    #headerSection .navbar-box {
        margin-top: 45%;
    }

    #aboutUsSection .left-box {
        height: 32rem;
        margin-top: 3rem;
    }

    #departmentSection .department-box {
        margin-top: 4rem;
    }

    #membersSection .member-box {
        margin-top: 4rem;
    }

    #footerSection {
        background-size: cover;
        top: 3rem;
    }

    #mediaArchiveSection .nav-item,
    #membersPageSection .nav-item {
        margin-right: 5rem;
    }

    #headerSection .navbar-box nav .navbar-collapse {
        position: absolute;
        top: 4rem;
        background-color: #ffffff;
        width: 90vw;
        z-index: 1;
    }
}

@media (min-width: 767.99px) and (max-width: 991.98px) {
    #headerSection .navbar-box {
        margin-top: 35%;
    }

    #aboutUsSection .left-box {
        height: 43rem;
        margin-top: 3rem;
    }

    #departmentSection .department-box {
        margin-top: 4rem;
    }

    #membersSection .member-box {
        margin-top: 4rem;
    }

    #footerSection {
        background-size: cover;
        top: 3rem;
    }

    #mediaArchiveSection .nav-item,
    #membersPageSection .nav-item {
        margin-right: 9rem;
    }

    #headerSection .navbar-box nav .navbar-collapse {
        position: absolute;
        top: 4rem;
        background-color: #ffffff;
        width: 90vw;
        z-index: 1;
    }
}

@media (min-width: 991.99px) and (max-width: 1199.98px) {
    #headerSection .title-box {
        top: 51%;
        font-size: medium;
    }

    #headerSection .navbar-box {
        margin-top: 25%;
    }

    #aboutUsSection .left-box {
        height: 28rem;
        margin-top: 3rem;
    }

    #footerSection {
        background-size: cover;
        top: 3rem;
    }
}

@media (min-width: 1800px) {
    #headerSection .navbar-box {
        margin-top: 25%;
    }

    #aboutUsSection .left-box {
        height: 28rem;
        margin-top: 3rem;
    }

    #footerSection {
        padding-top: 27rem;
    }
}