.main .middle > .content > .forum {
    height: 100%;
    overflow: hidden;
    position: relative;
    background: var(--chat-page-quaternary-bg-color);
    padding: 0px;
    transition: 0.5s;
    flex-flow: column;
    display: flex;
}

.main .middle > .content > .forum > .header {
    padding: 0px 15px;
    text-align: center;
    font-weight: 600;
    max-height: 60px;
    min-height: 60px;
    position: relative;
    z-index: 7;
    display: flex;
    align-items: center;
    width: 100%;
    flex: 1 0 auto;
    background: var(--chat-page-septenary-bg-color);
    border-bottom: 1px solid var(--chat-page-primary-border-color);
}

.main .middle > .content > .forum > .header > .left {
    text-align: left;
    margin-right: auto;
    line-height: 19px;
    cursor: pointer;
}

.main .middle > .content > .forum > .header > .left > .title {
    display: block;
    color: var(--chat-page-primary-text-color);
    font-size: var(--chat-page-secondary-font-size);
}

.main .middle > .content > .forum > .header > .left > .sub_title {
    display: block;
    color: var(--chat-page-tertiary-text-color);
    font-size: var(--chat-page-primary-font-size);
    font-weight: 400;
}

.main .middle > .content > .forum > .header > .go_back_icon {
    display: none;
    margin-right: 8px;
    color: var(--chat-page-tertiary-text-color);
    cursor: pointer;
}

.main.forum_threads_open .middle > .content > .forum > .header > .go_back_icon,
.main .middle > .content > .forum.forum_show_back > .header > .go_back_icon {
    display: inline-flex;
    align-items: center;
}

.main .middle > .content > .forum > .forum_view {
    flex: 1 1 auto;
    overflow: auto;
    padding: 14px 16px;
}

.main .middle > .content > .forum > .forum_boards {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.main .middle > .content > .forum .forum_board_card {
    background: var(--left-side-content-primary-bg-color);
    border: 1px solid var(--chat-page-primary-border-color);
    border-radius: 12px;
    padding: 18px 18px;
    cursor: pointer;
    transition: 0.2s;
    min-height: 72px;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 14px;
}

.main .middle > .content > .forum .forum_board_card:hover {
    border-color: var(--chat-page-primary-text-color);
}

.main .middle > .content > .forum .forum_board_card > .board_text {
    min-width: 0;
    flex: 1 1 auto;
}

.main .middle > .content > .forum .forum_board_card > .board_title {
    color: var(--chat-page-primary-text-color);
    font-size: 17px;
    font-weight: 700;
    line-height: 1.3;
}

.main .middle > .content > .forum .forum_board_card > .board_text > .board_title {
    color: var(--chat-page-primary-text-color);
    font-size: 17px;
    font-weight: 700;
    line-height: 1.3;
}

.main .middle > .content > .forum .forum_board_card > .board_text > .board_description {
    color: var(--left-side-content-secondary-text-color);
    font-size: 14px;
    line-height: 1.45;
    margin-top: 4px;
}

.main .middle > .content > .forum .forum_board_card > .board_meta {
    margin-top: 0;
    margin-left: auto;
    color: var(--chat-page-tertiary-text-color);
    font-size: 13px;
    white-space: nowrap;
    font-weight: 600;
}

.main .middle > .content > .forum .forum_threads {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.main .middle > .content > .forum .forum_thread_row {
    background: var(--left-side-content-primary-bg-color);
    border: 1px solid var(--chat-page-primary-border-color);
    border-radius: 12px;
    padding: 14px 16px;
    cursor: pointer;
    transition: 0.2s;
}

.main .middle > .content > .forum .forum_thread_row:hover {
    border-color: var(--chat-page-primary-text-color);
}

.main .middle > .content > .forum .forum_thread_row.is_open {
    border-color: var(--chat-page-primary-text-color);
}

.main .middle > .content > .forum .forum_thread_row > .thread_body {
    display: none;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--chat-page-primary-border-color);
    color: var(--left-side-content-primary-text-color);
    font-size: 14px;
    line-height: 1.55;
    white-space: pre-wrap;
    word-break: break-word;
}

.main .middle > .content > .forum .forum_thread_row.is_open > .thread_body {
    display: block;
}

.main .middle > .content > .forum .forum_thread_row > .thread_title {
    color: var(--chat-page-primary-text-color);
    font-size: var(--chat-page-secondary-font-size);
    font-weight: 600;
    line-height: 1.3;
}

.main .middle > .content > .forum .forum_thread_row > .thread_meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin-top: 3px;
    color: var(--chat-page-tertiary-text-color);
    font-size: var(--left-side-content-secondary-font-size);
}

.main .middle > .content > .forum .forum_thread_row > .thread_meta > .dot {
    opacity: 0.6;
}

.main .middle > .content > .forum .forum_empty {
    min-height: 220px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--left-side-content-secondary-text-color);
    gap: 8px;
}

.main .middle > .content > .forum .forum_empty_icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--left-side-content-secondary-bg-color);
    color: var(--chat-page-tertiary-text-color);
    margin-bottom: 6px;
}

.main .middle > .content > .forum .forum_empty_title {
    font-size: var(--chat-page-tertiary-font-size);
    color: var(--left-side-content-primary-text-color);
    font-weight: 600;
}

.main .middle > .content > .forum .forum_empty_hint {
    font-size: var(--left-side-content-primary-font-size);
    max-width: 280px;
}

.main .middle > .content > .forum > .loader {
    display: none;
    position: absolute;
    inset: 60px 0 0 0;
    background: var(--chat-page-quaternary-bg-color);
    z-index: 6;
    align-items: center;
    justify-content: center;
}

.main .middle > .content > .forum > .loader.visible,
.main .middle > .content > .forum.loading > .loader {
    display: flex;
}

.main .middle > .content > .forum > .header > .icons {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
}

.main .middle > .content > .forum > .header > .icons > span,
.main .middle > .content > .forum > .header > .icons > .icon > .svg_icon {
    font-size: var(--chat-window-quinary-font-size, 14px);
    color: var(--chat-page-primary-text-color);
    cursor: pointer;
    display: inline-flex;
    position: relative;
    width: 35px;
    height: 35px;
    background: var(--chat-page-senary-bg-color, var(--left-side-content-secondary-bg-color));
    transition: 0.2s;
    border-radius: 9px;
    align-items: center;
    justify-content: center;
}

.main .middle > .content > .forum > .header > .icons > span:hover,
.main .middle > .content > .forum > .header > .icons > .icon:hover > .svg_icon {
    background: var(--chat-window-octonary-bg-color, var(--chat-page-primary-border-color));
    color: var(--chat-page-primary-text-color);
}

.main .middle > .content > .forum > .header > .icons > .icon > .svg_icon > svg,
.main .middle > .content > .forum > .header > .icons > span > svg {
    width: 21px;
    height: 21px;
    fill: currentColor;
    color: inherit;
}

/* Keep forum expand readable in light theme */
.main.middle_full_screen .middle > .content > .forum > .header > .icons > .icon > .svg_icon,
.main .middle.middle_full_screen > .content > .forum > .header > .icons > .icon > .svg_icon {
    color: var(--chat-page-primary-text-color);
    background: var(--chat-page-senary-bg-color, var(--left-side-content-secondary-bg-color));
}

.main .middle > .content > .forum .forum_empty_create {
    margin-top: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    color: #fff;
    background: var(--left-side-content-quaternary-bg-color, var(--chat-page-primary-text-color));
    font-size: var(--left-side-content-primary-font-size);
    font-weight: 600;
}

.main .middle > .content > .forum .forum_thread_row > .thread_files {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}

.main .middle > .content > .forum .forum_thread_row > .thread_files > .thread_file {
    display: inline-flex;
    align-items: center;
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: var(--left-side-content-secondary-font-size);
    color: var(--chat-page-tertiary-text-color);
    background: var(--left-side-content-secondary-bg-color, var(--chat-page-senary-bg-color));
    border: 1px solid var(--chat-page-primary-border-color);
}

.main .middle > .content > .forum .forum_thread_row > .thread_files > .thread_file_image {
    padding: 0;
    max-width: 88px;
    height: 64px;
}

.main .middle > .content > .forum .forum_thread_row > .thread_files > .thread_file_image > img {
    width: 88px;
    height: 64px;
    object-fit: cover;
    display: block;
}

.main.forum_mode .chat_page_container > .aside,
.main.forum_mode .chat_page_container > .info_panel {
    display: none !important;
}

.main.forum_mode .chat_page_container > .side_navigation {
    z-index: 30;
    pointer-events: auto;
}

.main.forum_mode .chat_page_container > .middle {
    flex: 1 1 auto !important;
    max-width: none !important;
    width: auto !important;
}

.main.forum_mode.forum_form_open .chat_page_container > .formbox {
    display: flex !important;
    flex: 0 0 360px !important;
    max-width: 360px !important;
    width: 360px !important;
}

.side_navigation .menu_items > li.load_forum.forum_current > .menu_item {
    color: var(--side-navigation-secondary-text-color);
}

.side_navigation .menu_items > li.load_forum.forum_current > .menu_item > .title {
    color: var(--side-navigation-secondary-text-color);
}

@media (max-width: 767.98px) {
    .main .middle > .content > .forum > .header > .go_back_icon {
        display: inline-flex;
        align-items: center;
    }

    .main .middle > .content > .forum > .forum_boards {
        display: flex;
        flex-direction: column;
    }

    .main.forum_mode.forum_form_open .chat_page_container > .formbox {
        flex: 1 1 auto !important;
        max-width: none !important;
        width: 100% !important;
    }
}


/* Forum fullscreen: keep forum layout while aside collapses like Groups */
.main .middle.forum_middle.middle_full_screen {
    flex: 1 1 auto !important;
    max-width: none !important;
    width: 100% !important;
}
.main.forum_mode .middle.middle_full_screen > .content > .forum {
    display: flex !important;
}