/* Назначение файла: новый адаптивный application-shell простого AI-чата для desktop, tablet и mobile. */

:root {
    --chat-v2-bg:var(--as-bg);
    --chat-v2-bg-soft:var(--as-surface-soft);
    --chat-v2-panel:var(--as-surface);
    --chat-v2-panel-2:var(--as-surface);
    --chat-v2-border:var(--as-border);
    --chat-v2-border-strong:var(--as-border-strong);
    --chat-v2-text:var(--as-text);
    --chat-v2-soft: var(--as-secondary);
    --chat-v2-muted:var(--as-muted);
    --chat-v2-accent:var(--as-accent);
    --chat-v2-accent-soft:var(--as-accent-soft);
    --chat-v2-success:var(--as-success);
    --chat-v2-danger:var(--as-danger);
    --chat-v2-radius: 14px;
    --chat-v2-sidebar-width: 264px;
    --chat-v2-header-height: 68px;
    --chat-v2-max-text: 920px;
    --chat-v2-max-media: 1120px;
    --chat-viewport-height: 100dvh;
}

* {
    box-sizing: border-box;
}

html,
body.chat-layout-body {
    width: 100%;
    height: 100%;
    min-height: 100%;
    margin: 0;
    overflow: hidden;
    background: var(--chat-v2-bg);
    color: var(--chat-v2-text);
}

body.chat-layout-body {
    min-width: 0;
}

.chat-layout {
    width: 100%;
    height: var(--chat-viewport-height);
    min-height: 0;
    display: grid;
    grid-template-columns: var(--chat-v2-sidebar-width) minmax(0, 1fr);
    overflow: hidden;
    background: var(--chat-v2-bg);
}

.chat-layout__sidebar {
    min-width: 0;
    min-height: 0;
    position: relative;
    z-index: 40;
    overflow: hidden;
    border-right: 1px solid var(--chat-v2-border);
    background: var(--as-surface);
}

.chat-layout__sidebar > #sidebar,
.chat-layout__sidebar .sidebar {
    width: 100% !important;
    height: 100% !important;
    min-height: 0 !important;
    position: relative !important;
    inset: auto !important;
    transform: none !important;
}

.chat-layout__main {
    min-width: 0;
    min-height: 0;
    height: 100%;
    overflow: hidden;
    background: var(--chat-v2-bg);
}

.chat-layout__sidebar-backdrop {
    display: none;
}

/* ---------- Основной shell ---------- */

.chat-v2 {
    width: 100%;
    height: 100%;
    min-height: 0;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto;
    overflow: hidden;
    background:
        radial-gradient(circle at 78% 2%, rgba(var(--as-accent-rgb), 0.08), transparent 28%),
        var(--chat-v2-bg);
}

.chat-v2__native-model-select {
    position: fixed !important;
    width: 1px !important;
    height: 1px !important;
    left: -10000px !important;
    opacity: 0 !important;
    pointer-events: none !important;
}

.chat-v2__header {
    min-height: var(--chat-v2-header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 18px;
    border-bottom: 1px solid var(--chat-v2-border);
    background: rgba(var(--as-surface-rgb), 0.96);
    position: relative;
    z-index: 20;
}

.chat-v2__header-left,
.chat-v2__header-actions,
.chat-v2__composer-left,
.chat-v2__composer-right {
    display: flex;
    align-items: center;
}

.chat-v2__header-left {
    min-width: 0;
    gap: 10px;
}

.chat-v2__header-actions {
    flex: 0 0 auto;
    gap: 8px;
}

.chat-v2__nav-button {
    display: none !important;
}

.chat-v2__icon-button,
.chat-v2__secondary-button,
.chat-v2__tool-button,
.chat-v2__send-button,
.chat-v2__login-link,
.chat-v2__account-link {
    border: 1px solid var(--chat-v2-border);
    color: var(--chat-v2-soft);
    background: var(--as-surface);
    text-decoration: none;
    font: inherit;
    cursor: pointer;
    transition: border-color .16s ease, background .16s ease, color .16s ease, transform .16s ease;
}

.chat-v2__icon-button:hover,
.chat-v2__secondary-button:hover,
.chat-v2__tool-button:hover,
.chat-v2__login-link:hover,
.chat-v2__account-link:hover {
    border-color: var(--as-accent);
    background: var(--as-surface);
    color: var(--as-text);
}

.chat-v2__icon-button {
    width: 40px;
    height: 40px;
    display: inline-grid;
    place-items: center;
    padding: 0;
    border-radius: 11px;
    font-size: 17px;
}

.chat-v2__secondary-button {
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 13px;
    border-radius: 11px;
    font-size: 13px;
    font-weight: 750;
}

.chat-v2__login-link {
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 15px;
    border-radius: 11px;
    color: var(--as-text);
    background: var(--chat-v2-accent);
}

.chat-v2__account-link {
    width: 40px;
    height: 40px;
    display: inline-grid;
    place-items: center;
    border-radius: 50%;
    color: var(--as-text);
}

.chat-v2__model-trigger {
    min-width: 0;
    max-width: min(520px, 46vw);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 10px 7px 12px;
    border: 1px solid transparent;
    border-radius: 12px;
    background: transparent;
    color: var(--chat-v2-text);
    text-align: left;
    cursor: pointer;
    transition: background .16s ease, border-color .16s ease;
}

.chat-v2__model-trigger:hover {
    background: rgba(var(--as-border-rgb), 0.035);
    border-color: var(--chat-v2-border);
}

.chat-v2__model-trigger-main {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.chat-v2__model-trigger strong,
.chat-v2__model-trigger small {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.chat-v2__model-trigger strong {
    color: var(--chat-v2-text);
    font-size: 15px;
    line-height: 1.2;
}

.chat-v2__model-trigger small {
    color: var(--chat-v2-muted);
    font-size: 11px;
}

.chat-v2__model-trigger-arrow {
    color: var(--chat-v2-muted);
}

.chat-v2__quick-types {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 4px;
    padding-left: 2px;
}

.chat-v2__quick-type {
    min-height: 30px;
    padding: 0 9px;
    border: 1px solid transparent;
    border-radius: 9px;
    background: transparent;
    color: var(--chat-v2-muted);
    font: inherit;
    font-size: 9px;
    font-weight: 800;
    cursor: pointer;
    white-space: nowrap;
    transition: color .16s ease, background .16s ease, border-color .16s ease;
}

.chat-v2__quick-type:hover {
    color: var(--chat-v2-text);
    background: rgba(var(--as-border-rgb), 0.04);
}

.chat-v2__quick-type.is-active {
    color: var(--as-text);
    border-color: var(--as-border);
    background: rgba(var(--as-accent-rgb), 0.1);
}

.chat-v2__connection {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--chat-v2-muted);
    font-size: 11px;
    white-space: nowrap;
}

.chat-v2__connection-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--chat-v2-success);
    box-shadow: 0 0 0 4px rgba(var(--as-shadow-rgb), 0.08);
}

/* ---------- Сообщения ---------- */

.chat-v2__messages-shell {
    min-width: 0;
    min-height: 0;
    overflow: hidden;
}

.chat-v2__messages {
    width: 100%;
    height: 100%;
    min-height: 0;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 28px clamp(16px, 4vw, 52px) 36px;
    scrollbar-width: thin;
    scrollbar-color: rgba(118, 87, 246, .28) transparent;
}

.chat-v2__messages > .chat-turn,
.chat-v2__messages > .typing-indicator-container {
    width: min(100%, var(--chat-v2-max-media));
    margin-left: auto;
    margin-right: auto;
}

.chat-v2__empty {
    min-height: 100%;
    display: grid;
    align-content: center;
    justify-items: center;
    padding: 40px 20px 100px;
    text-align: center;
}

.chat-v2__empty-mark {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border: 1px solid var(--as-border);
    border-radius: 15px;
    background: rgba(var(--as-accent-rgb), 0.1);
    color: var(--as-text);
    font-size: 13px;
    font-weight: 900;
    letter-spacing: .08em;
}

.chat-v2__empty h1 {
    margin: 16px 0 0;
    font-size: clamp(26px, 4vw, 38px);
    letter-spacing: -.04em;
}

.chat-v2__empty p {
    max-width: 560px;
    margin: 10px 0 0;
    color: var(--chat-v2-muted);
    font-size: 14px;
    line-height: 1.65;
}

/* Новый простой вид turn поверх существующего renderer-а. */

.chat-v2 .chat-turn {
    padding: 0 0 26px;
    border: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
}

.chat-v2 .chat-turn__user {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 20px;
}

.chat-v2 .chat-turn__user-content {
    width: fit-content;
    max-width: min(78%, 680px);
    padding: 11px 15px;
    border: 1px solid var(--as-border);
    border-radius: 18px 18px 5px 18px;
    background: linear-gradient(135deg, var(--as-accent), var(--as-accent));
    color: var(--as-text);
}

.chat-v2 .chat-turn__assistant {
    width: min(100%, var(--chat-v2-max-text));
    margin-right: auto;
}

.chat-v2 .chat-turn__assistant-content {
    padding: 0 !important;
    border: 0 !important;
    background: transparent !important;
    color: var(--chat-v2-text);
    line-height: 1.7;
}

.chat-v2 .chat-turn__tools {
    width: min(100%, var(--chat-v2-max-text));
    margin-top: 10px;
    margin-right: auto;
}

.chat-v2 .chat-request-rejected {
    padding: 15px 16px;
    border: 1px solid var(--as-danger);
    border-radius: 12px;
    background: var(--as-danger-soft);
}

/* ---------- Composer ---------- */

.chat-v2__composer-shell {
    padding:
        8px
        clamp(12px, 3vw, 30px)
        max(10px, env(safe-area-inset-bottom));
    border-top: 1px solid var(--chat-v2-border);
    background: rgba(var(--as-surface-rgb), 0.97);
    position: relative;
    z-index: 25;
}

.chat-v2__composer {
    width: min(100%, 1060px);
    margin: 0 auto;
    border: 1px solid var(--chat-v2-border);
    border-radius: 18px;
    background: var(--as-surface);
    box-shadow: 0 12px 34px rgba(var(--as-shadow-rgb), 0.14);
    overflow: hidden;
    transition: border-color .16s ease, box-shadow .16s ease;
}

.chat-v2__composer:focus-within {
    border-color: var(--as-accent);
    box-shadow: 0 0 0 3px rgba(var(--as-shadow-rgb), 0.06);
}

.chat-v2__input {
    width: 100%;
    min-height: 52px;
    max-height: 190px;
    overflow-y: auto;
    padding: 14px 16px 8px;
    outline: none;
    color: var(--chat-v2-text);
    font-size: 15px;
    line-height: 1.55;
    white-space: pre-wrap;
    word-break: break-word;
}

.chat-v2__input:empty::before {
    content: attr(data-placeholder);
    color: var(--as-muted);
    pointer-events: none;
}

.chat-v2__composer-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 7px 9px 9px;
}

.chat-v2__composer-left,
.chat-v2__composer-right {
    gap: 6px;
}

.chat-v2__tool-button {
    min-width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 0 10px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 700;
}

.chat-v2__tool-button[data-active="true"],
.chat-v2__tool-button[aria-pressed="true"] {
    color: var(--as-text);
    border-color: var(--as-accent);
    background: rgba(var(--as-accent-rgb), 0.12);
}

.chat-v2__send-button {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    padding: 0;
    border-radius: 50%;
    border-color: transparent;
    background: var(--chat-v2-accent);
    color: var(--as-text);
    font-size: 17px;
}

.chat-v2__send-button:hover {
    transform: translateY(-1px);
    background: var(--as-accent);
}

.chat-v2__composer-hint {
    width: min(100%, 1060px);
    margin: 5px auto 0;
    padding-right: 6px;
    color: var(--as-muted);
    font-size: 9px;
    text-align: right;
}

.chat-v2__mobile-label {
    display: none;
}

/* ---------- Общий sheet ---------- */

.chat-v2-sheet,
.chat-v2-model-picker {
    position: fixed;
    inset: 0;
    z-index: 3000;
}

.chat-v2-sheet[hidden],
.chat-v2-model-picker[hidden] {
    display: none !important;
}

.chat-v2-sheet__backdrop,
.chat-v2-model-picker__backdrop {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
    background: rgba(var(--as-surface-rgb), 0.72);
    backdrop-filter: blur(3px);
    cursor: default;
}

.chat-v2-sheet__panel,
.chat-v2-model-picker__panel {
    position: absolute;
    top: 50%;
    left: 50%;
    width: min(680px, calc(100vw - 36px));
    max-height: min(82dvh, 780px);
    display: flex;
    flex-direction: column;
    transform: translate(-50%, -50%);
    border: 1px solid var(--as-border);
    border-radius: 18px;
    background: var(--as-surface);
    box-shadow: 0 30px 90px rgba(var(--as-shadow-rgb), 0.18);
    overflow: hidden;
}

.chat-v2-sheet__panel--wide {
    width: min(860px, calc(100vw - 36px));
}

.chat-v2-sheet__header,
.chat-v2-model-picker__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    padding: 17px 18px 14px;
    border-bottom: 1px solid var(--chat-v2-border);
}

.chat-v2-sheet__header h2,
.chat-v2-model-picker__header h2 {
    margin: 3px 0 0;
    color: var(--chat-v2-text);
    font-size: 18px;
    letter-spacing: -.02em;
}

.chat-v2-sheet__kicker {
    color: var(--as-accent-text);
    font-size: 9px;
    font-weight: 850;
    text-transform: uppercase;
    letter-spacing: .09em;
}

.chat-v2-sheet__close {
    width: 34px;
    height: 34px;
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    padding: 0;
    border: 1px solid var(--chat-v2-border);
    border-radius: 10px;
    background: var(--as-surface);
    color: var(--chat-v2-soft);
    cursor: pointer;
    font-size: 20px;
}

.chat-v2-sheet__body {
    min-height: 0;
    overflow-y: auto;
    padding: 18px;
}

.chat-v2-sheet__footer {
    display: flex;
    justify-content: flex-end;
    padding: 12px 18px;
    border-top: 1px solid var(--chat-v2-border);
}

.chat-v2-field {
    display: grid;
    gap: 7px;
    margin-bottom: 15px;
    color: var(--chat-v2-soft);
    font-size: 11px;
    font-weight: 750;
}

.chat-v2-field select,
.chat-v2-field textarea,
.chat-v2-settings-field input,
.chat-v2-settings-field select,
.chat-v2-settings-field textarea {
    width: 100%;
    border: 1px solid var(--chat-v2-border);
    border-radius: 10px;
    outline: 0;
    background: var(--as-surface);
    color: var(--chat-v2-text);
    font: inherit;
}

.chat-v2-field select {
    min-height: 40px;
    padding: 0 11px;
}

.chat-v2-field textarea {
    min-height: 92px;
    padding: 11px;
    resize: vertical;
}

.chat-v2-settings__behavior {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.chat-v2-settings__section-title {
    margin: 22px 0 12px;
    padding-top: 17px;
    border-top: 1px solid var(--chat-v2-border);
    color: var(--chat-v2-soft);
    font-size: 12px;
    font-weight: 850;
}

.chat-v2-settings__empty {
    color: var(--chat-v2-muted);
    font-size: 12px;
}

.chat-v2-settings-group {
    padding: 13px 0;
    border-top: 1px solid var(--chat-v2-border);
}

.chat-v2-settings-group:first-child {
    border-top: 0;
}

.chat-v2-settings-group__title {
    margin-bottom: 11px;
    color: var(--chat-v2-text);
    font-size: 12px;
    font-weight: 850;
}

.chat-v2-settings-field {
    display: grid;
    gap: 7px;
    margin-bottom: 12px;
    color: var(--chat-v2-soft);
    font-size: 11px;
}

.chat-v2-settings-field input:not([type="checkbox"]),
.chat-v2-settings-field select,
.chat-v2-settings-field textarea {
    min-height: 38px;
    padding: 7px 10px;
}

.chat-v2-settings-field textarea {
    min-height: 80px;
}

.chat-v2-settings-field__description {
    color: var(--chat-v2-muted);
    font-size: 10px;
    line-height: 1.45;
}

/* ---------- Model picker ---------- */

.chat-v2-model-picker__panel {
    width: min(760px, calc(100vw - 36px));
}

.chat-v2-model-picker__filters {
    display: flex;
    gap: 7px;
    padding: 12px 18px;
    overflow-x: auto;
    border-bottom: 1px solid var(--chat-v2-border);
}

.chat-v2-model-picker__filters button {
    min-height: 32px;
    flex: 0 0 auto;
    padding: 0 11px;
    border: 1px solid var(--chat-v2-border);
    border-radius: 999px;
    background: var(--as-surface);
    color: var(--chat-v2-muted);
    cursor: pointer;
    font: inherit;
    font-size: 10px;
    font-weight: 750;
}

.chat-v2-model-picker__filters button.is-active {
    border-color: var(--as-accent);
    background: rgba(var(--as-accent-rgb), 0.12);
    color: var(--as-text);
}

.chat-v2-model-picker__list {
    min-height: 0;
    overflow-y: auto;
    padding: 10px 14px 16px;
}

.chat-v2-model-card[hidden] {
    display: none !important;
}

.chat-v2-model-card {
    width: 100%;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 16px;
    align-items: start;
    margin-top: 7px;
    padding: 13px 14px;
    border: 1px solid var(--chat-v2-border);
    border-radius: 12px;
    background: var(--as-surface);
    color: inherit;
    text-align: left;
    cursor: pointer;
}

.chat-v2-model-card:hover {
    border-color: var(--as-accent);
    background: var(--as-surface);
}

.chat-v2-model-card.is-selected {
    border-color: var(--as-accent);
    background: rgba(var(--as-accent-rgb), 0.08);
}

.chat-v2-model-card.is-locked {
    opacity: .67;
}

.chat-v2-model-card__main {
    min-width: 0;
    display: grid;
    gap: 5px;
}

.chat-v2-model-card__title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.chat-v2-model-card strong {
    color: var(--chat-v2-text);
    font-size: 13px;
}

.chat-v2-model-card small {
    color: var(--chat-v2-muted);
    font-size: 10px;
    line-height: 1.45;
}

.chat-v2-model-card__price {
    color: var(--as-muted);
    font-size: 9px;
}

.chat-v2-model-card__input-mode {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    margin-top: 3px;
    color: var(--as-muted);
    font-size: 9px;
    font-weight: 700;
}

.chat-v2-model-picker__empty {
    margin-top: 12px;
    padding: 14px 15px;
    border: 1px dashed var(--as-border);
    border-radius: 12px;
    background: rgba(var(--as-border-rgb), 0.018);
    color: var(--as-muted);
}

.chat-v2-model-picker__empty strong,
.chat-v2-model-picker__empty span {
    display: block;
}

.chat-v2-model-picker__empty strong {
    color: var(--as-text);
    font-size: 11px;
}

.chat-v2-model-picker__empty span {
    margin-top: 5px;
    font-size: 10px;
    line-height: 1.45;
}

.chat-v2-model-card__capability {
    padding: 5px 8px;
    border-radius: 7px;
    background: var(--as-surface);
    color: var(--as-muted);
    font-size: 9px;
    font-weight: 800;
    white-space: nowrap;
}

.chat-v2-model-card__check {
    color: var(--chat-v2-success);
}

.chat-v2-model-picker__auth,
.chat-v2-auth-card {
    margin: 0 14px 14px;
    padding: 14px;
    border: 1px solid var(--as-border);
    border-radius: 12px;
    background: rgba(var(--as-accent-rgb), 0.07);
}

.chat-v2-model-picker__auth strong,
.chat-v2-auth-card strong {
    color: var(--chat-v2-text);
    font-size: 12px;
}

.chat-v2-model-picker__auth p,
.chat-v2-auth-card p {
    margin: 5px 0 0;
    color: var(--chat-v2-muted);
    font-size: 10px;
    line-height: 1.5;
}

.chat-v2-model-picker__auth-actions,
.chat-v2-auth-card__actions {
    display: flex;
    gap: 8px;
    margin-top: 11px;
}

.chat-v2-model-picker__auth-actions a,
.chat-v2-auth-card__actions a {
    min-height: 34px;
    display: inline-flex;
    align-items: center;
    padding: 0 11px;
    border-radius: 9px;
    background: var(--chat-v2-accent);
    color: var(--as-text);
    text-decoration: none;
    font-size: 10px;
    font-weight: 800;
}

/* ---------- Inline media reference ---------- */

.chat-generated-image-toolbar {
    justify-content: space-between !important;
}

.chat-generated-image-request-toggle {
    min-height: 34px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0 10px;
    border: 1px solid var(--as-border);
    border-radius: 10px;
    color: var(--as-secondary);
    background: rgba(var(--as-border-rgb), 0.3);
    font-size: 10px;
    font-weight: 750;
    cursor: pointer;
    user-select: none;
}

.chat-generated-image-request-toggle:hover {
    border-color: var(--as-border);
    color: var(--as-text);
}

.chat-generated-image-request-toggle input {
    width: 15px;
    height: 15px;
    margin: 0;
    accent-color: var(--chat-v2-accent);
    cursor: pointer;
}

.chat-generated-image-request-toggle.is-active {
    border-color: var(--as-accent);
    background: rgba(var(--as-accent-rgb), 0.1);
    color: var(--as-text);
}

.chat-generated-image-request-toggle__note {
    color: var(--as-muted);
    font-size: 9px;
    font-weight: 600;
}

@media (max-width: 1180px) {
    .chat-v2__quick-type {
        padding-left: 7px;
        padding-right: 7px;
    }

    .chat-v2__quick-type:nth-child(2) {
        font-size: 0;
    }

    .chat-v2__quick-type:nth-child(2)::after {
        content: "Фото";
        font-size: 9px;
    }
}

@media (max-width: 900px) {
    .chat-v2__quick-types {
        display: none;
    }
}

@media (max-width: 720px) {
    .chat-generated-image-toolbar {
        align-items: stretch !important;
        flex-direction: column !important;
    }

    .chat-generated-image-request-toggle {
        width: 100%;
        justify-content: center;
    }
}

/* ---------- Sidebar collapse ---------- */

body.chat-sidebar-collapsed .chat-layout {
    grid-template-columns: 0 minmax(0, 1fr);
}

body.chat-sidebar-collapsed .chat-layout__sidebar {
    overflow: visible;
}

body.chat-sidebar-collapsed .chat-layout__sidebar > #sidebar,
body.chat-sidebar-collapsed .chat-layout__sidebar .sidebar {
    transform: translateX(-100%) !important;
}

/* ---------- Tablet ---------- */

@media (max-width: 1180px) {
    .chat-layout {
        grid-template-columns: 76px minmax(0, 1fr);
    }

    .chat-layout__sidebar .sidebar {
        width: 76px !important;
    }

    .chat-v2__model-trigger {
        max-width: 360px;
    }
}

/* ---------- Mobile / drawer ---------- */

@media (max-width: 820px) {
    :root {
        --chat-v2-header-height: 58px;
    }

    .chat-layout {
        grid-template-columns: minmax(0, 1fr);
    }

    .chat-layout__sidebar {
        position: fixed;
        inset: 0 auto 0 0;
        width: min(86vw, 320px);
        height: var(--chat-viewport-height);
        z-index: 4000;
        transform: translateX(-104%);
        transition: transform .2s ease;
        border-right: 1px solid var(--as-border);
        box-shadow: 25px 0 65px rgba(var(--as-shadow-rgb), 0.18);
    }

    body.chat-nav-open .chat-layout__sidebar {
        transform: translateX(0);
    }

    .chat-layout__sidebar > #sidebar,
    .chat-layout__sidebar .sidebar {
        width: 100% !important;
        transform: none !important;
    }

    .chat-layout__sidebar-backdrop {
        position: fixed;
        inset: 0;
        z-index: 3990;
        border: 0;
        background: rgba(var(--as-surface-rgb), 0.66);
    }

    body.chat-nav-open .chat-layout__sidebar-backdrop {
        display: block;
    }

    .chat-v2__header {
        padding: 7px 10px;
        gap: 8px;
    }

    .chat-v2__nav-button {
        display: inline-grid !important;
    }

    .chat-v2__connection {
        display: none;
    }

    .chat-v2__model-trigger {
        max-width: calc(100vw - 202px);
        padding-left: 4px;
        padding-right: 4px;
    }

    .chat-v2__model-trigger small {
        display: none;
    }

    .chat-v2__model-trigger strong {
        font-size: 13px;
    }

    .chat-v2__secondary-button {
        width: 38px;
        padding: 0;
    }

    .chat-v2__desktop-label {
        display: none;
    }

    .chat-v2__mobile-label {
        display: inline;
    }

    .chat-v2__login-link {
        min-width: 0;
        padding: 0 10px;
        font-size: 11px;
    }

    .chat-v2__messages {
        padding: 18px 12px 26px;
    }

    .chat-v2 .chat-turn__user-content {
        max-width: 88%;
    }

    .chat-v2__composer-shell {
        padding:
            7px
            8px
            max(7px, env(safe-area-inset-bottom));
    }

    .chat-v2__composer {
        border-radius: 16px;
    }

    .chat-v2__input {
        min-height: 46px;
        max-height: 150px;
        padding: 12px 12px 6px;
        font-size: 16px; /* iOS не увеличивает страницу при focus */
    }

    .chat-v2__composer-hint {
        display: none;
    }

    .chat-v2__tool-button {
        padding: 0 8px;
    }

    .chat-v2-sheet__panel,
    .chat-v2-model-picker__panel {
        top: auto;
        bottom: 0;
        left: 0;
        width: 100%;
        max-height: min(82dvh, 760px);
        transform: none;
        border-radius: 18px 18px 0 0;
        border-left: 0;
        border-right: 0;
        border-bottom: 0;
        padding-bottom: env(safe-area-inset-bottom);
    }

    .chat-v2-model-picker__filters {
        padding-left: 12px;
        padding-right: 12px;
    }

    .chat-v2-model-picker__list {
        padding-left: 10px;
        padding-right: 10px;
    }

    .chat-v2-settings__behavior {
        grid-template-columns: 1fr;
        gap: 0;
    }
}

/* ---------- Очень узкие телефоны ---------- */

@media (max-width: 460px) {
    .chat-v2__header-actions {
        gap: 5px;
    }

    .chat-v2__icon-button,
    .chat-v2__account-link,
    .chat-v2__secondary-button {
        width: 36px;
        height: 36px;
        min-height: 36px;
    }

    .chat-v2__model-trigger {
        max-width: calc(100vw - 180px);
    }

    .chat-v2__model-trigger-arrow {
        display: none;
    }

    .chat-v2-model-card {
        grid-template-columns: minmax(0, 1fr);
        gap: 8px;
    }

    .chat-v2-model-card__capability {
        width: fit-content;
    }

    .chat-v2__empty {
        padding-left: 14px;
        padding-right: 14px;
    }
}