.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: 18px;
}

.main .middle > .content > .forum > .forum_boards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 14px;
}

.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 16px;
    cursor: pointer;
    transition: 0.2s;
    min-height: 118px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

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

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

.main .middle > .content > .forum .forum_board_card > .board_description {
    color: var(--left-side-content-secondary-text-color);
    font-size: var(--left-side-content-primary-font-size);
    line-height: 1.45;
}

.main .middle > .content > .forum .forum_board_card > .board_meta {
    margin-top: auto;
    color: var(--chat-page-tertiary-text-color);
    font-size: var(--left-side-content-secondary-font-size);
}

.main .middle > .content > .forum .forum_empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 280px;
    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;
}

/* Same token/style as Groups chatbox expand (middle.css) — scoped to .forum only */
.main .middle > .content > .forum > .header > .icons > span,
.main .middle > .content > .forum > .header > .icons > .icon > .svg_icon {
    font-size: var(--chat-window-quinary-font-size);
    color: var(--chat-window-primary-text-color);
    cursor: pointer;
    display: inline-flex;
    position: relative;
    width: 35px;
    height: 35px;
    background: var(--chat-window-tertiary-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);
    color: var(--chat-window-secondary-text-color);
}

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

/* Fullscreen: keep forum visible & match Groups alone layout without fighting chatbox */
.main .middle.middle_full_screen.forum_middle > .content > .forum {
    display: block !important;
}
.main .middle.display_chat_alone.forum_middle > .content > .forum > .header > .go_back_icon {
    display: none !important;
}
.main .middle.display_chat_alone.forum_middle > .content > .forum > .header > .icons .toggle_side_navigation {
    display: none !important;
}

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

.main.forum_mode .chat_page_container.show_navigation > .side_navigation {
    display: flex;
}

@media (min-width: 768px) {
    .main.forum_mode .chat_page_container.show_navigation > .middle {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

.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 {
        grid-template-columns: 1fr;
    }
}