.bd-sidebar-primary {
    flex-basis: auto;
}

.lang-button {
    display: inline-block;
    margin: 5px;
    padding: 5px 10px;
    border: 1px solid #aaa;
    border-radius: 5px;
    text-decoration: none;
}

.prev-next-footer {
    display: none;
}

.bd-article {
    width: 900px;
}

.navheader table,
.navfooter table {
    display: table;
    margin-left: 0px;
    margin-right: 0px;
    max-width: 100%;
    overflow: auto;
    width: 100%;
}

.table {
    color: var(--pst-color-text-base);
}

.navheader td,
.navfooter td,
.navheader th,
.navfooter th {
    text-align: center;
    vertical-align: middle;
}

.sidebar-primary-item #select_version {
    width: 100%;
    margin-top: 10px;
    border: 1px solid #555;
    color: var(--pst-color-text-base);
}

#select_version option {
    background-color: var(--pst-color-background);
    color: var(--pst-color-text-base);
}

span.optional {
    font-size: 16px;
}

/* ================================== */


.tantor-footer-container {
    width: 100%;
    padding: 10px;
}

.tantor-footer-horizontal-divs {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
}

.tantor-footer-sub-div {
    width: 32%;
    padding: 10px;
}

.tantor-footer-center-text {
    text-align: center;
    padding: 10px;
    color: rgb(34, 40, 50);

}

.tantor-footer-build-info-text {
    text-align: center;
    color: var(--pst-color-border-muted);
    font-size: var(--pst-sidebar-font-size);
}

.tantor-footer-warn {
    text-align: center;
    border-radius: 15px;
    background: #ffc700;
    box-shadow: 0px 2px 5px rgba(0, 0, 0, 0.1);
}

/* ================================== */

.footer__panel {
    padding: 17px 0 0;
    margin: 30px 0 0;
    border-top: 1px solid rgba(162, 162, 162, .2)
}

.footer__logo {
    display: block;
    margin: 0 auto 30px;
    background-image: url(../images/logo.svg);
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    width: 239px;
    height: 95px
}

.footer__social {
    justify-content: center
}

.social {
    display: flex;
    align-items: center
}

.social__link {
    display: inline-flex;
    width: 30px;
    height: 30px;
    min-width: 30px;
    opacity: 1;
    margin: 0 20px 0 0;
    transition: .3s linear;
    border-radius: 50%;
    background-color: #ec6626
}

.social__link:hover {
    background-color: #d34f10
}

.social__link:before {
    content: "";
    display: inline-flex;
    align-items: center;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    width: 30px;
    height: 30px;
    min-width: 30px;
    border-radius: 50%
}

.social__link--vk:before {
    background-image: url(../images/vk.svg)
}

.social__link--yb:before {
    background-image: url(../images/yb.svg)
}

.social__link--tg:before {
    background-image: url(../images/tg.svg)
}

.social__link--habr:before {
    background-image: url(../images/habr.svg)
}

.social__link--rutube:before {
    background-image: url(../images/rutube.svg)
}

.social__link:last-child {
    margin: 0
}

/* ================================== */
footer.bd-footer-content {
    border-top: 0px solid #ccc;
}

.bd-sidebar-primary {
    flex-direction: row !important;
    overflow-x: hidden;
}


/* ================================== */
.navbar-nav li.toctree-l1 .toctree-checkbox:checked ~ ul {
    display: initial !important;
}

.navbar-nav li.toctree-l1 .toctree-checkbox ~ ul {
    display: initial !important;
}

li.toctree-l1 ul {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.5s ease, opacity 0.5s ease;
}

li.toctree-l1 input[type="checkbox"]:checked ~ ul {
    max-height: 1000px;
    opacity: 1;
}

/* ================================== */

nav.bd-links {
    margin-right: 0rem;
}

abbr, acronym {
    cursor: auto !important;
}

/* ================================== */
/* Simple custom scrollbar styles (replace to ScrollMagic) */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--pst-color-border-muted);
}

::-webkit-scrollbar-thumb {
    background: var(--pst-color-text-muted);
    border-radius: 5px;
    transition: background-color 1.7s;
}

/* Hover effect for the scrollbar thumb */
::-webkit-scrollbar-thumb:hover {
    background: #cc3b03;
    transition: background-color 1.7s;
}

/* Custom styles for Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: #cc3b03 var(--pst-color-border-muted);
}

/* Custom styles for imagedata*/
.mediaobject img {
    max-width: 100%;
    width: auto;
    height: auto;
}

/* Unique style for the modal window */
#scale-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Unique style for the enlarged image */
#scale-modal-content {
    max-width: 90%;
    max-height: 90%;
    animation: zoom 0.3s;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    border-radius: 8px;
}

#scale-modal-content:hover {
    cursor: zoom-out;
}

/* Animation for the image appearance */
@keyframes zoom {
    from { transform: scale(0); }
    to { transform: scale(1); }
}

/* Container for control buttons */
#scale-modal-controls {
    position: absolute;
    top: 90px;
    right: 20px;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Zoom in and zoom out buttons */
.zoom-btn {
    background-color: transparent;
    border: none;
    color: white;
    font-size: 30px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s;
}

.zoom-btn:hover {
    color: #bbb;
}

/* Close button */
#scale-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 1001;
}

#scale-modal-close:hover,
#scale-modal-close:focus {
    color: #bbb;
    text-decoration: none;
    cursor: pointer;
}