:root {
    --w-pad: 20px;
    --list-width: clamp(300px, 22.5vw, 450px);
}

html:has(.app-shell),
body:has(.app-shell) {
    height: 100%;
    overflow: hidden;
}

.app-shell {
    display: flex;
    align-items: flex-start;
    width: 100%;
}

.workspace.app-shell {
    height: var(--visible-height, 100dvh);
    min-height: 0;
    align-items: stretch;
    overflow: hidden;
}

@media (max-width: 768px) {
    html[data-keyboard-open] .workspace.app-shell.chat-shell {
        position: fixed;
        top: var(--visible-top, 0px);
        left: 0;
        width: 100%;
    }
}

.main:where(.app-shell, .app-shell *, .guest-header, .guest-header *) {
    position: relative;
    display: flex;
    flex: 1;
    flex-direction: column;
    min-width: 0;
    height: 100%;
    min-height: 0;
    overflow: hidden;
}

.app-sidebar {
    position: sticky;
    top: 0;
    align-self: flex-start;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    width: 200px;
    height: 100vh;
    padding: 12px 8px;
    overflow-y: auto;
    background: var(--bg-2);
    scrollbar-width: none;
    transition: width .2s ease;
}

.app-sidebar::-webkit-scrollbar {
    display: none;
}

.app-sidebar__head:where(.app-sidebar, .app-sidebar *) {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    min-height: 36px;
    margin: 0 0 12px 12px;
}

.app-sidebar__logo-wrap:where(.app-sidebar, .app-sidebar *) {
    display: flex;
    align-items: center;
}

.app-sidebar__logo:where(.app-sidebar, .app-sidebar *) {
    display: block;
    width: auto;
    max-width: 125px;
    height: 28px;
}

.app-sidebar__logo-ico:where(.app-sidebar, .app-sidebar *) {
    display: none;
    width: 28px;
    height: 28px;
    object-fit: contain;
}

.app-sidebar__toggle:where(.app-sidebar, .app-sidebar *) {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    padding: 0;
    border: 1px solid var(--border-1);
    border-radius: var(--radius-s);
    background: transparent;
    color: var(--text-2);
    cursor: pointer;
}

.app-sidebar__toggle:hover:where(.app-sidebar, .app-sidebar *) {
    background: var(--surface);
    color: var(--text-1);
}

.app-sidebar.sidebar nav {
    display: block;
    height: auto;
    overflow: visible;
}

.app-sidebar.sidebar .nav-item {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 10px;
    width: 100%;
    min-width: 0;
    margin: 0;
    padding: 8px 12px;
    border: 0;
    border-radius: var(--radius-m);
    background: transparent;
    color: var(--text-1);
    font-size: var(--fs-14);
    font-weight: var(--fw-regular);
    line-height: var(--lh-text);
    text-align: left;
}

.app-sidebar.sidebar .nav-item svg {
    flex: 0 0 20px;
    width: 20px;
    height: 20px;
    color: var(--text-2);
    stroke-width: 1.5;
}

.app-sidebar.sidebar .nav-item > .sidebar-link__label {
    flex: 1;
    width: auto;
    min-width: 0;
    font-size: var(--fs-14);
    line-height: var(--lh-text);
    text-align: left;
}

.app-sidebar .nav-item b {
    float: right;
    margin: 0 0 0 5px;
    font-size: var(--fs-12);
}

.app-sidebar.sidebar .nav-item.active {
    background: var(--bg-4);
    font-weight: var(--fw-bold);
}

.app-sidebar.sidebar .nav-item:hover {
    background: var(--bg-3);
}

.app-sidebar .primary-nav-item:disabled {
    color: var(--text-3);
    opacity: 1;
    cursor: default;
}

.app-sidebar.sidebar .nav-divider {
    height: 1px;
    margin: 10px 12px;
    background: var(--border-1);
}

.sidebar-footer:where(.app-sidebar, .app-sidebar *) {
    margin-top: auto;
}

.sidebar-utility-links:where(.app-sidebar, .app-sidebar *) {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px 12px;
    padding: 12px 8px 0;
}

.app-sidebar.sidebar .sidebar-utility-link {
    display: inline;
    flex: none;
    width: auto;
    min-width: 0;
    margin: 0;
    padding: 2px 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    color: var(--text-3);
    font-size: var(--fs-12);
    font-weight: var(--fw-regular);
    line-height: var(--lh-text);
    text-align: left;
    cursor: pointer;
}

.app-sidebar.sidebar .sidebar-utility-link:is(:hover, .active) {
    background: transparent;
    color: var(--text-1);
}

.app-sidebar.sidebar .sidebar-utility-link:disabled {
    opacity: .55;
    cursor: default;
}

.app-sidebar .sidebar-bottom {
    padding: 16px 8px 0;
}

.app-sidebar .sidebar-bottom > a.profile {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 2px 0;
    border-top: 1px solid var(--border-1);
    color: inherit;
    font-size: var(--fs-12);
}

.app-sidebar .profile-avatar {
    --avatar-size: 37px;
    position: relative;
    display: block;
    flex: 0 0 37px;
    width: 37px;
    height: 37px;
}

.app-sidebar .profile-connection-dot {
    position: absolute;
    right: -1px;
    bottom: -1px;
    width: 11px;
    height: 11px;
    border: 2px solid var(--bg-2);
    border-radius: 50%;
    background: var(--presence-offline);
    pointer-events: none;
}

.app-sidebar .profile:has(.connection-status.online) .profile-connection-dot {
    background: var(--presence-online);
}

.app-sidebar .profile-caption {
    flex: 1;
    min-width: 0;
}

.app-sidebar .profile strong {
    display: block;
    max-width: 110px;
    overflow: hidden;
    font-size: var(--fs-12);
    text-overflow: ellipsis;
}

.app-sidebar .connection-status {
    display: block;
    font-size: var(--fs-12);
}

.app-sidebar .profile .connection-status {
    margin-top: 3px;
    color: var(--text-3);
    line-height: var(--lh-tight);
}

.app-burger:where(.app-shell, .app-shell *, .guest-header, .guest-header *) {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    margin-right: 8px;
    padding: 9px 8px;
    border: none;
    border-radius: var(--radius-m);
    background: transparent;
    cursor: pointer;
}

.app-burger span:where(.app-shell, .app-shell *, .guest-header, .guest-header *) {
    display: block;
    height: 2px;
    border-radius: var(--radius-s);
    background: var(--text-1);
}

.app-burger span:nth-child(1):where(.app-shell, .app-shell *, .guest-header, .guest-header *) {
    width: 70%;
}

.app-burger span:nth-child(2):where(.app-shell, .app-shell *, .guest-header, .guest-header *) {
    width: 100%;
}

.app-burger span:nth-child(3):where(.app-shell, .app-shell *, .guest-header, .guest-header *) {
    width: 45%;
}

.mobile-shell-bar:where(.app-shell, .app-shell *, .guest-header, .guest-header *) {
    display: none;
}

.topbar:where(.app-shell, .app-shell *, .guest-header, .guest-header *) {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    height: 95px;
    padding: 22px 32px;
    border-bottom: 1px solid var(--border-1);
}

.topbar h1:where(.app-shell, .app-shell *) {
    margin: 4px 0 0;
    font-size: var(--fs-24);
    font-weight: var(--fw-bold);
    letter-spacing: -.03em;
}

.top-actions:where(.topbar, .topbar *) {
    display: flex;
    align-items: center;
    gap: 16px;
}

body.conversation-mode .topbar:where(.app-shell, .app-shell *, .guest-header, .guest-header *) {
    display: none;
}

.chat-columns {
    display: flex;
    flex: 1;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
}

.conversation-list:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    width: var(--list-width);
    min-width: 0;
    height: 100%;
    min-height: 0;
    padding: 0;
    border-right: 1px solid var(--border-1);
    background: var(--surface);
}

.search:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    display: flex;
    align-items: center;
    margin: 0 20px;
    padding: 0 10px;
    border: 1px solid var(--border-1);
    border-radius: var(--radius-m);
    background: var(--bg-3);
    color: var(--text-3);
}

.conversation-list .search:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    margin: 12px 12px 0;
}

.search input:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    width: 100%;
    padding: 8px;
    border: 0;
    background: transparent;
    font-size: var(--fs-12);
}

.chat-tabs {
    flex-shrink: 0;
    min-width: 0;
    margin: 0 12px;
    border-bottom: 1px solid var(--border-1);
}

/* Два экрана вкладок (chat-tabs.js): горизонтальная прокрутка со щелчком — листают стрелка и свайп.
   Пока не известно, есть ли «Обращения», ряд прозрачен (место занято — ничего не прыгает), затем проявляется. */
.chat-tabs__track:where(.chat-tabs, .chat-tabs *) {
    position: relative;
    opacity: 0;
    transition: opacity .2s ease;
    display: flex;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
}

.chat-tabs__track:where(.chat-tabs, .chat-tabs *)::-webkit-scrollbar {
    display: none;
}

/* Шесть равных мест на экране (владелец 02.10): вкладка — в своей шестой части, не растягивается,
   даже когда на втором экране их три. */
.chat-tabs__page:where(.chat-tabs, .chat-tabs *) {
    display: grid;
    flex: 0 0 100%;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    justify-items: center;
    align-items: center;
    gap: 4px;
    box-sizing: border-box;
    min-width: 0;
    padding: 8px 4px;
    scroll-snap-align: start;
}

.chat-tabs__page[hidden]:where(.chat-tabs, .chat-tabs *) {
    display: none;
}

.chat-tabs--ready .chat-tabs__track:where(.chat-tabs, .chat-tabs *) {
    opacity: 1;
}

/* Стрелка между экранами — того же размера, что вкладка, но тише; число — непрочитанное за ней. */
.chat-tabs__go:where(.chat-tabs, .chat-tabs *) {
    color: var(--text-2);
}

.chat-tab:where(.chat-tabs, .chat-tabs *) {
    position: relative;
    display: flex;
    flex: 1 1 38px;
    width: 100%;
    align-items: center;
    justify-content: center;
    min-width: 30px;
    max-width: 52px;
    height: 38px;
    padding: 0;
    border: 0;
    border-radius: var(--radius-m);
    background: transparent;
    color: var(--text-3);
    cursor: pointer;
}

@media (hover: hover) {
    .chat-tab:hover:where(.chat-tabs, .chat-tabs *) {
        background: var(--bg-3);
        color: var(--text-1);
    }
}

.chat-tab.active:where(.chat-tabs, .chat-tabs *) {
    background: var(--accent);
    color: var(--text-inverse);
    box-shadow: none;
}

.chat-tab svg:where(.chat-tabs, .chat-tabs *) {
    width: 22px;
    height: 22px;
    stroke-width: 1.6;
}

.chat-tab b:where(.chat-tabs, .chat-tabs *) {
    position: absolute;
    top: -4px;
    right: -4px;
    display: grid;
    place-items: center;
    box-sizing: border-box;
    width: 22px;
    min-width: 22px;
    height: 22px;
    padding: 0;
    border: 1px solid var(--accent);
    border-radius: 50%;
    background: var(--accent);
    color: var(--text-inverse);
    font-size: var(--fs-12);
    line-height: 1;
}

.chat-tabs .chat-tab.active b {
    background: var(--text-inverse);
    color: var(--accent);
}

.chat-tab[hidden]:where(.chat-tabs, .chat-tabs *),
.chat-tab b[hidden]:where(.chat-tabs, .chat-tabs *) {
    display: none;
}

.create-from-search:where(.chat-columns, .chat-columns *) {
    flex-shrink: 0;
    margin: 0 12px 8px;
    padding: 10px 12px;
    border: 0;
    border-radius: var(--radius-m);
    background: var(--info-soft);
    color: var(--link);
    font-size: var(--fs-14);
    text-align: left;
    cursor: pointer;
}

.create-from-search[hidden]:where(.chat-columns, .chat-columns *) {
    display: none;
}

.inbox:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    flex: 1;
    min-height: 0;
    padding: 0 6px;
    overflow: auto;
}

.chat-item:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    margin-bottom: 4px;
    padding: 11px 8px;
    border: 0;
    border-radius: var(--radius-m);
    background: transparent;
    text-align: left;
}

.chat-item:hover:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    background: var(--bg-3);
}

.chat-item.active:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    background: var(--bg-4);
}

.chat-item .avatar:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    width: 30px;
    height: 30px;
    border-radius: var(--radius-m);
    font-size: var(--fs-14);
}

.chat-item .avatar img:where(.chat-columns, .chat-columns *) {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.chat-item .summary:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    flex: 1;
    min-width: 0;
}

.chat-item strong:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    display: block;
    overflow: hidden;
    font-size: var(--fs-12);
    font-weight: var(--fw-bold);
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chat-item p:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    margin: 3px 0 0;
    overflow: hidden;
    color: var(--text-3);
    font-size: var(--fs-14);
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chat-meta:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    align-self: flex-start;
    color: var(--text-3);
    font-size: var(--fs-12);
    text-align: right;
}

.badge:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    display: block;
    width: 18px;
    margin: 8px 0 0 auto;
    padding: 2px 0;
    border-radius: var(--radius-s);
    background: var(--accent);
    color: var(--text-inverse);
}

.conversation:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    display: flex;
    flex: 1;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
    background: var(--bg-1);
}

.welcome:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    flex: 1;
    max-width: 550px;
    min-height: 0;
    margin: auto;
    padding: 36px;
    text-align: center;
}

.welcome-symbol:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    width: 82px;
    height: 82px;
    margin: 0 auto 32px;
    border-radius: var(--radius-l);
    background: var(--bg-3);
    color: var(--text-2);
    font-size: var(--fs-32);
    font-weight: var(--fw-regular);
}

.welcome h2:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    margin: 15px 0;
    font-size: var(--fs-32);
    line-height: var(--lh-tight);
    letter-spacing: -.04em;
}

.welcome p:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    max-width: 320px;
    margin: 0 auto 26px;
    color: var(--text-3);
    font-size: var(--fs-14);
    line-height: var(--lh-text);
}

.welcome-notes:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 52px;
    color: var(--text-3);
    font-size: var(--fs-12);
}

.thread:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    display: flex;
    flex: 1;
    flex-direction: column;
    min-width: 0;
    height: 100%;
    min-height: 0;
    overflow: hidden;
}

.thread-header:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    gap: 12px;
    height: 64px;
    min-height: 64px;
    padding: 10px 20px;
    border-bottom: 1px solid var(--border-1);
}

.thread-header > div:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    min-width: 0;
}

.thread-header h2:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    margin: 0;
    overflow: hidden;
    font-size: var(--fs-14);
    font-weight: var(--fw-bold);
    text-overflow: ellipsis;
    white-space: nowrap;
}

.thread-header p:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    margin: 3px 0 0;
    color: var(--text-3);
    font-size: var(--fs-12);
}

.thread-header > button:last-child:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    margin-left: auto;
}

.messages:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    flex: 1;
    min-height: 0;
    padding: 18px 24px;
    overflow-y: auto;
    overscroll-behavior: contain;
    scroll-behavior: auto;
    background: var(--chat-bg);
}

.thread > :is(.typing, .reply, .reply-draft, .attachment-drafts, .composer, .composer-hint):where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    flex-shrink: 0;
}

.typing:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    height: 14px;
    margin: 5px 28px;
    color: var(--text-3);
    font-size: var(--fs-12);
}

.thread .typing:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    min-height: 21px;
    margin: 0;
    padding: 2px 20px;
}

.reply:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0 24px;
    padding: 7px 12px;
    background: var(--bg-3);
    color: var(--text-3);
    font-size: var(--fs-12);
}

.composer:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    display: flex;
    align-items: flex-end;
    flex-shrink: 0;
    gap: 8px;
    margin: 0;
    padding: 10px 18px;
    border: 0;
    border-top: 1px solid var(--border-1);
    border-radius: 0;
    background: var(--surface);
    box-shadow: none;
}

.composer textarea:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    flex: 1;
    min-width: 0;
    min-height: 42px;
    max-height: 130px;
    padding: 8px;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    outline: 0;
    resize: none;
}

.composer-hint:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
    margin: 0;
    padding: 0 18px 8px;
    background: var(--surface);
    color: var(--text-3);
    font-size: var(--fs-12);
}

.send:where(.rich-composer, .rich-composer *, .attachment-panel, .attachment-panel *, .attachment-drafts, .attachment-drafts *, .composer, .composer *, .composer-hint, .composer-hint *) {
    width: 37px;
    height: 37px;
    border: 0;
    border-radius: var(--radius-m);
    background: var(--accent);
    color: var(--text-inverse);
    font-size: var(--fs-20);
}

.attach-button:where(.rich-composer, .rich-composer *, .attachment-panel, .attachment-panel *, .attachment-drafts, .attachment-drafts *, .composer, .composer *, .composer-hint, .composer-hint *) {
    padding: 8px 12px;
    border: 0;
    border-radius: var(--radius-m);
    background: var(--bg-3);
    color: var(--text-1);
    font-size: var(--fs-20);
    cursor: pointer;
}

.attachment-drafts {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    max-height: 100px;
    padding: 0 12px;
    overflow: auto;
}

.attachment-drafts button {
    max-width: 100%;
    padding: 6px;
    border: 1px solid var(--border-2);
    border-radius: var(--radius-m);
    background: var(--bg-3);
    font-size: var(--fs-12);
    overflow-wrap: anywhere;
}

.support-page {
    flex: 1;
    min-height: 0;
    padding: 0;
    overflow: hidden;
}

.support-layout:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
    display: grid;
    grid-template-columns: var(--list-width) minmax(0, 1fr);
    gap: 0;
    height: 100%;
    min-height: 0;
    margin: 0;
    overflow: hidden;
}

.support-page .support-layout {
    grid-template-columns: var(--list-width-custom, var(--list-width)) minmax(0, 1fr);
}

.support-sidebar:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
    border-right: 1px solid var(--border-1);
    background: var(--surface);
}

.support-toolbar:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
    display: flex;
    flex-direction: column;
    align-items: end;
    gap: 15px;
    padding: 12px;
}

.support-toolbar label:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
    min-width: 0;
    color: var(--text-3);
    font-size: var(--fs-12);
}

.support-toolbar :is(select, input):where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
    width: 100%;
    min-width: 0;
    margin: 4px 0 0;
    padding: 8px;
    border-radius: var(--radius-s);
    font-size: var(--fs-12);
}

.support-toolbar select:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
    display: block;
    min-width: 180px;
    margin-top: 6px;
}

.support-filter-row:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 7px;
}

.support-list:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
    flex: 1;
    min-height: 0;
    max-height: none;
    padding: 0 6px;
    overflow: auto;
}

.support-item:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
    display: block;
    width: 100%;
    margin: 0 0 6px;
    padding: 16px;
    border: 0;
    border-bottom: 1px solid var(--border-1);
    border-radius: var(--radius-m);
    background: var(--bg-3);
    text-align: left;
}

.support-item strong:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
    display: block;
    overflow: hidden;
    font-size: var(--fs-12);
    text-overflow: ellipsis;
}

.support-item.active:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
    background: var(--bg-3);
}

.support-heading:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
    flex: 1;
    min-width: 0;
}

.support-heading p:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
    margin: 3px 0 0;
    color: var(--text-3);
    font-size: var(--fs-12);
}

/* «Инфо» открыло колонку справа (шире 1400px): кнопка остаётся нажатой, повторное нажатие закрывает. */
.support-details-toggle[aria-expanded="true"]:where(.support-page, .support-page *) {
    background: var(--bg-3);
    color: var(--text-1);
}

@media (max-width: 900px) {
    .support-toolbar:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
        flex-wrap: wrap;
    }

    .support-toolbar select:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
        min-width: 140px;
    }
}


.loading-rows {
    width: 100%;
    padding: 4px 0;
}

.loading-row:where(.loading-rows, .loading-rows *) {
    display: flex;
    align-items: center;
    gap: 9px;
    min-height: 64px;
    padding: 12px 2px;
}

.loading-avatar:where(.loading-rows, .loading-rows *) {
    flex: 0 0 37px;
    width: 37px;
    height: 37px;
    border-radius: 50%;
    background: var(--skeleton);
}

.loading-lines:where(.loading-rows, .loading-rows *) {
    display: flex;
    flex: 1;
    flex-direction: column;
    gap: 9px;
    min-width: 0;
}

.loading-lines > span:where(.loading-rows, .loading-rows *) {
    display: block;
    width: 82%;
    height: 9px;
    border-radius: var(--radius-s);
    background: var(--skeleton);
}

.loading-lines > span:first-child:where(.loading-rows, .loading-rows *) {
    width: 56%;
    height: 11px;
}

.loading-rows :is(.loading-avatar, .loading-lines > span) {
    animation: loading-pulse 1.6s ease-in-out infinite;
}

.loading-accessible {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

.messages-loading {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 16px 12px;
}

.messages-loading__bubble:where(.messages-loading, .messages-loading *) {
    display: block;
    max-width: 72%;
    border-radius: var(--radius-l);
    background: var(--skeleton);
    animation: loading-pulse 1.6s ease-in-out infinite;
}

.messages-loading__bubble--own:where(.messages-loading, .messages-loading *) {
    align-self: flex-end;
}

@media (prefers-reduced-motion: reduce) {
    .messages-loading__bubble:where(.messages-loading, .messages-loading *) { animation: none; }
}

@keyframes loading-pulse {
    50% {
        opacity: .45;
    }
}

@media (max-width: 1100px) {
    .topbar:where(.app-shell, .app-shell *, .guest-header, .guest-header *) {
        padding: 22px;
    }

    .welcome h2:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
        font-size: var(--fs-28);
    }
}

@media (min-width: 769px) {
    .app-shell--collapsed .app-sidebar.sidebar {
        width: 60px;
        padding-inline: 6px;
        cursor: e-resize;
    }

    .app-shell--collapsed .app-sidebar :is(a, button) {
        cursor: pointer;
    }

    .app-shell--collapsed .app-sidebar :is(.app-sidebar__logo, .layout_about, .sidebar-link__label, .nav-divider, .sidebar-footer) {
        display: none;
    }

    .app-shell--collapsed .app-sidebar__logo-ico:where(.app-sidebar, .app-sidebar *) {
        display: block;
    }

    .app-shell--collapsed .app-sidebar__head:where(.app-sidebar, .app-sidebar *) {
        margin-inline: 0;
        position: relative;
        justify-content: center;
    }

    .app-shell--collapsed .app-sidebar__toggle:where(.app-sidebar, .app-sidebar *) {
        position: absolute;
        inset: 0;
        display: none;
        width: 28px;
        height: 28px;
        margin: auto;
    }

    .app-shell--collapsed .app-sidebar__head:is(:hover, :focus-within) .app-sidebar__toggle:where(.app-sidebar, .app-sidebar *) {
        display: flex;
    }

    .app-shell--collapsed .app-sidebar__head:is(:hover, :focus-within) .app-sidebar__logo-ico:where(.app-sidebar, .app-sidebar *) {
        visibility: hidden;
    }

    .app-shell--collapsed .app-sidebar__toggle svg:where(.app-sidebar, .app-sidebar *) {
        transform: rotate(180deg);
    }

    .app-shell--collapsed .app-sidebar.sidebar .nav-item {
        position: relative;
        justify-content: center;
        padding: 8px 0;
    }

    .app-shell--collapsed .app-sidebar.sidebar .nav-item > .sidebar-link__label:has(> b:not(:empty)) {
        display: block;
        position: absolute;
        inset: 0 -6px 0 0;
        overflow: hidden;
        color: transparent;
        pointer-events: none;
    }

    .app-shell--collapsed .app-sidebar .nav-item > .sidebar-link__label > b {
        position: absolute;
        top: 2px;
        left: calc(50% - 3px);
        display: grid;
        place-items: center;
        float: none;
        min-width: 14px;
        height: 16px;
        margin: 0;
        padding: 0 3px;
        border: 2px solid var(--bg-2);
        border-radius: var(--radius-full);
        background: var(--accent);
        color: var(--text-inverse);
        font-size: var(--fs-12);
        font-weight: var(--fw-bold);
        line-height: var(--lh-tight);
        box-sizing: content-box;
    }

    .main:has(> :is(.page-feed, .page-contacts, .page-projects, .page-settings):not([hidden])) > .topbar:where(.app-shell, .app-shell *, .guest-header, .guest-header *) {
        display: none;
    }
}

@media (max-width: 768px) {
    :root {
        --w-pad: 10px;
    }

    .app-shell {
        display: block;
    }

    .workspace.app-shell {
        display: flex;
    }

    .app-burger:where(.app-shell, .app-shell *, .guest-header, .guest-header *) {
        display: flex;
    }

    .app-sidebar.sidebar {
        position: fixed;
        top: 0;
        bottom: 0;
        left: 0;
        right: auto;
        z-index: 60;
        width: min(310px, 85vw);
        height: 100dvh;
        max-height: 100dvh;
        padding: 24px 16px;
        overflow-y: auto;
        border-right: 1px solid var(--border-1);
        border-bottom: 0;
        background: var(--surface);
        box-shadow: 8px 0 32px var(--shadow-color);
        transform: translateX(-105%);
        transition: transform .25s ease;
    }

    .app-shell--mobile-open .app-sidebar.sidebar {
        transform: translateX(0);
    }

    .app-shell.app-shell--mobile-open::before {
        content: "";
        position: fixed;
        inset: 0;
        z-index: 55;
        background: var(--overlay);
    }

    .app-sidebar__head:where(.app-sidebar, .app-sidebar *) {
        justify-content: flex-start;
        margin-bottom: 12px;
    }

    .app-sidebar__toggle:where(.app-sidebar, .app-sidebar *) {
        display: none;
    }

    .app-sidebar.sidebar .sidebar-bottom {
        display: none;
    }

    .sidebar-footer:where(.app-sidebar, .app-sidebar *) {
        margin-top: 0;
    }

    .sidebar-utility-links:where(.app-sidebar, .app-sidebar *) {
        padding-top: 14px;
    }

    .mobile-shell-bar:where(.app-shell, .app-shell *, .guest-header, .guest-header *) {
        z-index: 45;
        display: flex;
        align-items: center;
        flex-shrink: 0;
        height: 48px;
        min-height: 48px;
        padding: 0 12px;
        border-bottom: 1px solid var(--border-1);
        background: var(--bg-2);
    }

    .mobile-shell-bar strong:where(.app-shell, .app-shell *, .guest-header, .guest-header *) {
        font-size: var(--fs-14);
    }

    .topbar:where(.app-shell, .app-shell *, .guest-header, .guest-header *) {
        height: 64px;
        min-height: 64px;
        padding: 10px 18px;
    }

    .topbar h1:where(.app-shell, .app-shell *) {
        font-size: var(--fs-20);
    }

    .top-actions:where(.topbar, .topbar *) {
        gap: 8px;
    }

    .top-actions .primary:where(.topbar, .topbar *) {
        padding: 10px;
        font-size: var(--fs-12);
    }

    .conversation-list:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
        width: 100%;
        border: 0;
    }

    .chat-columns .conversation {
        display: none;
    }

    .chat-open .chat-columns .conversation-list {
        display: none;
    }

    .chat-open .chat-columns .conversation {
        display: flex;
        width: 100%;
    }

    .welcome-notes:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
        flex-direction: column;
        gap: 10px;
    }

    .thread-header:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
        gap: 8px;
        height: 63px;
        min-height: 63px;
        padding: 8px 12px;
    }

    .thread-header h2:where(.chat-columns, .chat-columns *) {
        font-size: var(--fs-16);
    }

    .thread-header p:where(.chat-columns, .chat-columns *) {
        font-size: var(--fs-14);
    }

    .support-thread-header .avatar:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
        display: none;
    }

    .messages:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
        padding: 12px;
    }

    .composer:where(.chat-columns, .chat-columns *, .support-page, .support-page *) {
        padding: 8px 12px;
    }

    .support-layout:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
        display: flex;
    }

    .support-page .support-layout {
        grid-template-columns: 1fr;
    }

    .support-sidebar:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
        width: 100%;
        border-right: 0;
    }

    .support-conversation:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
        display: none;
    }

    .support-open .support-sidebar:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
        display: none;
    }

    .support-open .support-conversation:where(.support-page, .support-page *, .support-details-dialog, .support-details-dialog *) {
        display: flex;
        width: 100%;
    }

    .app-shell[data-signed-in=false] {
        --guest-header-height: calc(64px + env(safe-area-inset-top, 0px));
    }

    .app-shell[data-signed-in=false] > .app-content {
        padding-top: var(--guest-header-height);
    }

    .app-shell[data-signed-in=false] > .app-sidebar.sidebar {
        top: var(--guest-header-height);
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 79;
        display: flex;
        flex-direction: column;
        width: 100%;
        max-width: none;
        height: calc(100dvh - var(--guest-header-height));
        max-height: none;
        padding: 24px 20px calc(24px + env(safe-area-inset-bottom, 0px));
        overflow: auto;
        overscroll-behavior: contain;
        border: 0;
        background: var(--surface);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-12px);
        transition: opacity .2s, transform .2s, visibility .2s;
    }

    .app-shell[data-signed-in=false].app-shell--mobile-open > .app-sidebar.sidebar {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: none;
    }

    .app-shell[data-signed-in=false] .app-sidebar__head {
        display: none;
    }

    .app-shell[data-signed-in=false] .sidebar-footer {
        margin-top: auto;
        padding-top: 28px;
    }

    .app-shell[data-signed-in=false] .app-sidebar.sidebar .sidebar-bottom {
        display: block;
    }

    .app-shell[data-signed-in=false] .app-sidebar.sidebar .nav-item {
        min-height: 48px;
        font-size: var(--fs-16);
    }

    body:has(.app-shell[data-signed-in=false].app-shell--mobile-open) {
        overflow: hidden;
    }

    body:has(.app-shell[data-signed-in=false].app-shell--mobile-open) > [data-sensever-widget-host] {
        visibility: hidden;
    }
}

@media (prefers-reduced-motion: reduce) {
    .app-sidebar,
    .app-sidebar.sidebar,
    .app-shell[data-signed-in=false] > .app-sidebar.sidebar {
        transition: none;
    }

    .loading-rows :is(.loading-avatar, .loading-lines > span) {
        animation: none;
    }
}