@media (max-width: 768px) {
  html,
  body {
    width: 100%;
    height: 100%;
    min-height: 100dvh;
    overflow: hidden;
  }

  body {
    max-width: 100vw;
    overscroll-behavior: none;
  }

  .app {
    grid-template-columns: 1fr;
    width: 100%;
    height: 100dvh;
    min-height: 100dvh;
    max-width: 100vw;
    overflow: hidden;
  }

  .sidebar {
    display: flex;
    width: 100%;
    height: 100dvh;
    min-width: 0;
    min-height: 0;
    border-right: 0;
    overflow: hidden;
  }

  .profile {
    min-height: 64px;
    padding: 10px 12px;
    gap: 8px;
    flex-shrink: 0;
  }

  .desktop-sidebar-toggle {
    display: none !important;
  }

  .profile-modal {
    padding: 10px;
  }

  .profile-modal-window {
    width: 100%;
    max-height: calc(100dvh - 20px);
  }

  .profile-form {
    grid-template-columns: 1fr !important;
    min-height: 0;
    max-height: calc(100dvh - 84px);
  }

  .settings-sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--mes-shell-border);
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding: 10px;
  }

  .settings-tab {
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .settings-content {
    padding: 14px;
  }

  .profile-notification-action,
  .profile-sound-row,
  .call-device-grid,
  .call-device-actions {
    grid-template-columns: 1fr;
  }

  .profile-main {
    gap: 10px;
  }

  .avatar {
    width: 38px;
    height: 38px;
    border-radius: 10px;
  }

  .profile-name {
    font-size: 15px;
  }

  .profile-status {
    font-size: 12px;
  }

  .logout-button {
    min-width: 44px;
    width: auto;
    height: 36px;
    padding: 0 10px;
    font-size: 12px;
  }

  .sidebar-scroll {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
  }

  .sidebar-section {
    padding: 0;
  }

  .sidebar-section-header {
    min-height: 46px;
    padding: 12px;
    gap: 10px;
    font-size: 11px;
  }

  .sidebar-section-body {
    padding: 0 8px 10px;
    gap: 6px;
    max-height: none;
    overflow: visible;
  }

  .add-friend-form {
    grid-template-columns: minmax(0, 1fr) 40px 40px;
    gap: 6px;
    padding: 0 8px 10px;
    align-items: stretch;
  }

  .sidebar-item {
    min-height: 56px;
    max-height: 68px;
    padding: 8px 10px;
    gap: 8px;
    border-radius: 8px;
    display: flex;
    flex-direction: row;
    align-items: center;
    flex-wrap: nowrap;
    overflow: hidden;
  }

  .sidebar-avatar {
    width: 36px;
    height: 36px;
    border-radius: 9px;
  }

  .sidebar-item-main {
    min-width: 0;
    flex: 1 1 auto;
    overflow: hidden;
  }

  .sidebar-item-title,
  .sidebar-item-subtitle {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .sidebar-item-meta {
    max-width: 72px;
    font-size: 11px;
  }

  .sidebar-item-actions {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
    flex: 0 0 auto;
    min-width: fit-content;
  }

  .sidebar-pin-marker,
  .unread-badge,
  .sidebar-item-menu-button {
    flex-shrink: 0;
  }

  .sidebar-pin-marker {
    width: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .sidebar-item-menu-button {
    width: 38px;
    height: 38px;
    margin-left: 0;
    border-radius: 10px;
    background: #232323;
    color: var(--text-main);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 38px;
    font-size: 24px;
    line-height: 1;
    font-weight: 800;
  }

  .sidebar-item-menu-button:active {
    background: var(--bg-hover);
    color: var(--accent-strong);
  }

  .profile-sound-row {
    grid-template-columns: 1fr;
  }

  .profile-notification-action {
    grid-template-columns: 1fr;
  }

  .toast-container {
    left: 10px;
    right: 10px;
    bottom: calc(86px + env(safe-area-inset-bottom, 0px));
    width: auto;
  }

  body:not(.mobile-chat-open) .toast-container,
  .app:not(.mobile-chat-open) ~ .toast-container {
    bottom: calc(14px + env(safe-area-inset-bottom, 0px));
  }

  .toast {
    border-radius: 9px;
  }

  .unread-badge {
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
  }

  .friend-request-item,
  .group-member-option,
  .member-row,
  .manageable-group-row {
    min-height: 52px;
    padding: 10px;
  }

  .friend-request-item {
    align-items: center;
    flex-wrap: wrap;
  }

  .friend-request-actions,
  .member-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .friend-action-button,
  .member-action-button,
  .secondary-modal-button {
    min-height: 38px;
  }

  .friend-request-name {
    flex: 1 1 110px;
    font-size: 13px;
  }

  .friend-request-actions {
    flex: 0 1 auto;
    max-width: 100%;
  }

  .friend-action-button {
    min-height: 30px;
    padding: 0 8px;
    font-size: 11px;
  }

  .app-version {
    margin-top: 0;
    padding: 9px 12px calc(9px + env(safe-area-inset-bottom));
    flex-shrink: 0;
  }

  .chat {
    position: fixed;
    inset: 0;
    z-index: 20;
    width: 100%;
    max-width: 100vw;
    height: 100dvh;
    min-height: 0;
    transform: translateX(100%);
    transition: transform 0.2s ease;
    grid-template-rows: 64px minmax(0, 1fr) auto;
    overflow: hidden;
  }

  body.mobile-chat-open .chat,
  .app.mobile-chat-open .chat {
    transform: translateX(0);
  }

  body.mobile-chat-open .sidebar,
  .app.mobile-chat-open .sidebar {
    pointer-events: none;
  }

  .chat-header {
    height: 64px;
    min-height: 64px;
    padding: 8px 10px;
    gap: 8px;
  }

  .mobile-back-button {
    width: 44px;
    height: 44px;
    min-width: 44px;
    padding: 0;
    border: none;
    border-radius: 10px;
    background: #232323;
    color: var(--accent-strong);
    display: none;
    align-items: center;
    justify-content: center;
    flex: 0 0 44px;
    font-size: 24px;
    font-weight: 800;
  }

  body.mobile-chat-open .mobile-back-button,
  .app.mobile-chat-open .mobile-back-button {
    display: inline-flex;
  }

  .chat-header-info {
    min-width: 0;
    flex: 1;
  }

  .chat-call-actions {
    gap: 6px;
  }

  .chat-call-button {
    min-height: 40px;
    padding: 0 9px;
    font-size: 12px;
    white-space: nowrap;
  }

  .chat-header h1 {
    font-size: 17px;
    line-height: 1.2;
  }

  .chat-header p {
    margin-top: 3px;
    font-size: 12px;
    line-height: 1.25;
  }

  .call-modal {
    align-items: flex-end;
    padding: 10px;
  }

  .call-window {
    max-width: none;
    max-height: calc(100vh - 20px);
    overflow-y: auto;
    padding: 16px;
    border-radius: 12px;
  }

  .call-video-grid {
    min-height: 0;
    height: min(54vh, 420px);
  }

  .call-video.remote {
    min-height: 0;
  }

  .call-video.local {
    right: 8px;
    bottom: 8px;
    width: 34%;
    min-width: 104px;
  }

  .remote-media-badges {
    left: 8px;
    top: 8px;
    gap: 6px;
  }

  .remote-media-badge {
    min-height: 30px;
    padding: 0 9px;
    font-size: 11px;
  }

  .call-remote-state {
    margin-bottom: 12px;
  }

  .call-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .call-action-button {
    min-height: 46px;
    padding: 0 10px;
  }

  .compact-call-bar {
    left: 10px;
    right: 10px;
    bottom: calc(76px + env(safe-area-inset-bottom, 0px));
    width: auto;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 10px;
  }

  .compact-call-actions {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
  }

  .compact-call-button {
    min-height: 38px;
    padding: 0 7px;
    font-size: 11px;
  }

  .messages {
    min-height: 0;
    padding: 12px;
    gap: 10px;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .message {
    max-width: 92%;
    padding: 9px 11px;
    border-radius: 12px;
    overflow-wrap: anywhere;
  }

  .system-message {
    max-width: 92%;
    border-radius: 10px;
  }

  .call-message {
    max-width: 92%;
    padding: 8px 10px;
  }

  .file-message {
    width: min(92%, calc(100vw - 24px));
    max-width: 92%;
  }

  .file-card {
    width: 100%;
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 10px;
    padding: 10px;
  }

  .file-card-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    font-size: 19px;
  }

  .file-card-title {
    min-width: 0;
  }

  .file-card-meta {
    overflow-wrap: anywhere;
  }

  .file-card-download {
    grid-column: 1 / -1;
    width: 100%;
    min-height: 42px;
  }

  .file-unavailable-badge {
    grid-column: 1 / -1;
    width: 100%;
    min-height: 38px;
  }

  .file-download-progress {
    grid-column: 1 / -1;
    width: 100%;
    min-width: 0;
  }

  .message-form {
    width: 100%;
    min-height: 0;
    max-height: 40dvh;
    padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
    gap: 8px;
    overflow: visible;
  }

  .message-form .file-button {
    width: 44px;
    min-width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 10px;
    flex: 0 0 44px;
  }

  .message-form textarea {
    min-height: 44px;
    max-height: 128px;
    padding: 12px;
    border-radius: 10px;
    overflow-y: auto;
  }

  .message-form button:not(.file-button) {
    width: 88px;
    min-width: 0;
    height: 44px;
    padding: 0 8px;
    border-radius: 10px;
    flex: 0 0 88px;
    overflow: hidden;
    font-size: 13px;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .modal,
  .auth-modal,
  .confirm-modal,
  .modal-overlay {
    padding: 12px;
    overflow: hidden;
  }

  .modal-window,
  .auth-window,
  .confirm-window {
    width: calc(100vw - 24px);
    max-width: none;
    max-height: calc(100dvh - 24px);
    overflow-y: auto;
    padding: 18px;
    border-radius: 14px;
  }

  .modal-window form {
    flex-direction: column;
  }

  .modal-window input,
  .modal-window select,
  .auth-window input,
  .file-caption-input {
    min-height: 44px;
  }

  input[type="checkbox"] {
    min-height: 20px;
  }

  .modal-actions,
  .confirm-actions,
  .member-admin-actions {
    flex-wrap: wrap;
    justify-content: stretch;
  }

  .modal-actions > button,
  .confirm-actions > button,
  .member-admin-actions > button {
    flex: 1 1 132px;
    min-height: 42px;
  }

  .join-code-card,
  .group-code-modal .modal-window {
    max-width: calc(100vw - 24px);
  }

  .join-code-actions,
  .group-code-modal .modal-actions {
    flex-wrap: wrap;
    justify-content: stretch;
  }

  .join-code-actions > button,
  .group-code-modal .modal-actions > button {
    flex: 1 1 132px;
    min-width: 0;
    white-space: normal;
  }

  .group-members-list,
  .members-list,
  .manageable-groups-list {
    max-height: min(300px, 42dvh);
  }

  .member-row,
  .manageable-group-row,
  .ownership-transfer-row {
    align-items: flex-start;
  }

  .file-upload-modal .modal-window {
    max-width: none;
  }

  .file-upload-summary {
    margin: 12px 0;
    padding: 10px;
  }

  .file-preview-image {
    max-height: min(220px, 32dvh);
  }

  .file-caption-input {
    min-height: 84px;
    max-height: 26dvh;
    resize: none;
  }

  .attachment-composer {
    margin: 0 12px 10px;
    padding: 12px;
    max-height: min(56dvh, 460px);
  }

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

  .attachment-preview-image {
    max-height: min(220px, 28dvh);
  }

  .attachment-caption {
    min-height: 78px;
    max-height: 22dvh;
    resize: none;
  }

  .attachment-no-compress,
  .file-no-compress {
    align-items: flex-start;
  }

  .attachment-actions {
    flex-wrap: wrap;
  }

  .attachment-actions > button {
    flex: 1 1 132px;
  }

  .file-upload-progress,
  .attachment-progress,
  .file-download-progress {
    padding: 10px;
  }

  .context-menu,
  .group-actions-menu {
    max-width: calc(100vw - 16px);
    max-height: calc(100dvh - 24px);
    overflow-y: auto;
  }


  .message.image-message {
    width: min(92%, calc(100vw - 24px));
    max-width: 92%;
    padding: 8px;
  }

  .message.image-message.image-unavailable {
    width: fit-content;
    max-width: min(92%, calc(100vw - 24px));
  }

  .chat-photo {
    max-height: min(420px, 52dvh);
    border-radius: 10px;
  }

  .message-image-unavailable,
  .image-unavailable-message {
    min-height: 36px;
    max-height: 44px;
    padding: 7px 10px;
    font-size: 13px;
  }

}

/* MES UI SHELL mobile guard */
@media (max-width: 768px) {
  .app {
    grid-template-columns: 1fr;
  }

  .sidebar {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto minmax(0, 1fr) auto;
    width: 100%;
  }

  .app-nav-rail {
    grid-column: 1;
    grid-row: 1;
    min-height: 58px;
    padding: 8px;
    border-right: 0;
    border-bottom: 1px solid var(--mes-shell-border, rgba(170,225,210,.12));
    flex-direction: row;
    overflow-x: auto;
    justify-content: flex-start;
  }

  .app-nav-button {
    width: 62px;
    min-width: 62px;
    min-height: 46px;
    border-radius: 14px;
  }

  .app-nav-label {
    font-size: 9px;
  }

  .app-nav-spacer {
    flex: 0 0 8px;
  }

  .profile,
  .universal-search-panel,
  .new-inbox-card,
  .sidebar-scroll,
  .app-version {
    grid-column: 1;
  }

  .profile {
    grid-row: 2;
    margin: 10px;
    min-height: 62px;
  }

  .universal-search-panel {
    grid-row: 3;
    margin: 0 10px 8px;
  }

  .new-inbox-card {
    margin: 0 10px 8px;
  }

  .sidebar-scroll {
    padding: 0 10px 10px;
  }

  .add-friend-form {
    grid-template-columns: minmax(0, 1fr) 40px 40px;
    gap: 6px;
  }

  .add-friend-form button {
    min-width: 40px;
    padding: 0;
  }

  .add-friend-form input {
    width: 100%;
  }

  .message-form {
    margin: 0 10px 10px;
    border-radius: 18px;
    grid-template-columns: 44px minmax(0, 1fr) auto;
  }

  .message-form textarea {
    min-height: 42px;
  }

  body.mobile-chat-open .app-nav-rail,
  .app.mobile-chat-open .app-nav-rail {
    display: none;
  }
}

@media (max-width: 420px) {
  .add-friend-form {
    grid-template-columns: minmax(0, 1fr) 40px 40px;
  }

  .new-inbox-card {
    grid-template-columns: 34px minmax(0, 1fr) auto;
  }
}

@media (max-width: 760px) {
  .desktop-sidebar-toggle {
    display: none !important;
  }

  .profile-modal {
    padding: 10px;
  }

  .profile-modal-window {
    width: 100%;
    max-width: none;
    max-height: calc(100dvh - 20px);
    border-radius: 14px;
    overflow: hidden;
  }

  .profile-form {
    grid-template-columns: 1fr !important;
    min-height: 0;
    max-height: calc(100dvh - 84px);
  }

  .settings-sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding: 10px;
  }

  .settings-tab {
    flex: 0 0 auto;
    min-height: 38px;
    white-space: nowrap;
  }

  .settings-content {
    min-height: 0;
    padding: 14px;
    overflow-y: auto;
  }

  .profile-notification-action,
  .profile-sound-row,
  .profile-avatar-controls,
  .call-device-grid,
  .call-device-actions {
    grid-template-columns: 1fr;
  }

  .new-inbox-card {
    min-height: 72px;
    max-height: 96px;
    border-color: var(--border-color);
    background: var(--bg-card);
  }

  .new-inbox-card:hover,
  body[data-mes-view="new"] .new-inbox-card {
    background: var(--accent-soft);
    border-color: rgba(var(--accent-rgb), 0.38);
  }

  .sidebar-item-menu-button {
    background: var(--bg-soft);
    color: var(--text-main);
    border: 1px solid var(--border-color);
  }

  .sidebar-item-menu-button:active {
    background: var(--accent-soft);
    color: var(--accent-strong);
  }

  .context-menu {
    background: var(--bg-card);
    border-color: var(--border-color);
  }
}

/* MES mobile polish layer */
@media (max-width: 768px) {
  .app-nav-rail {
    min-height: 64px;
    gap: 6px;
  }

  .app-nav-button {
    width: 60px;
    min-width: 60px;
    min-height: 50px;
    padding: 6px 4px;
  }

  .app-nav-label {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    margin: -1px !important;
    padding: 0 !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
  }

  .app-nav-new.is-disabled {
    display: none;
  }

  body.mes-new-empty .new-inbox-card {
    display: none !important;
  }

  .sidebar-section {
    padding: 8px 0;
  }

  .sidebar-section-header {
    min-height: 34px;
    padding: 0 2px 8px;
    font-size: 11px;
    letter-spacing: 0.045em;
  }

  .profile-modal {
    padding: 8px;
  }

  .profile-modal-window {
    width: 100%;
    max-height: calc(100dvh - 16px);
    border-radius: 18px;
  }

  .profile-form {
    grid-template-columns: 1fr !important;
    min-height: 0;
    max-height: calc(100dvh - 86px);
  }

  .settings-sidebar {
    display: flex;
    gap: 8px;
    padding: 10px;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--border-color);
  }

  .settings-tab {
    flex: 0 0 auto;
    min-height: 38px;
    padding: 0 12px !important;
    border-radius: 999px !important;
    white-space: nowrap;
  }

  .settings-content {
    padding: 12px;
  }

  .settings-card {
    padding: 14px;
    border-radius: 14px;
  }

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

  .theme-choice {
    min-height: 38px !important;
  }
}

@media (max-width: 768px) {
  .add-friend-form {
    grid-template-columns: minmax(0, 1fr) 40px 40px;
    width: 100%;
    max-width: 100%;
    gap: 6px;
    align-items: center;
  }

  .add-friend-form input {
    min-width: 0;
    width: 100%;
  }

  .add-friend-form button,
  .add-friend-form button[type="submit"],
  .add-friend-form .mark-all-read-button {
    width: 40px;
    min-width: 40px !important;
    max-width: 40px;
    padding: 0;
    flex: 0 0 40px;
  }

  .add-friend-form .button-icon {
    margin: 0 auto;
  }

  .new-inbox-card,
  .new-empty-state {
    display: none !important;
  }

  .sidebar-item-menu-button,
  .mobile-back-button {
    background: var(--bg-soft) !important;
    border-color: var(--border-color) !important;
    color: var(--text-main) !important;
  }

  .group-modal-window,
  .members-modal-window {
    padding: 18px;
    border-radius: 18px;
    background: var(--bg-panel) !important;
    border-color: var(--border-color) !important;
  }

  .group-members-list,
  .members-list {
    border-radius: 14px;
  }

  .profile-form input.volume-slider,
  .modal-window input.volume-slider {
    min-height: 20px;
  }
}

/* MES 0.8.9.3 mobile shell guard */
@media (max-width: 768px) {
  .app,
  .sidebar,
  .chat,
  .profile-modal-window,
  .modal-window,
  .call-window {
    max-width: 100vw;
    box-sizing: border-box;
  }

  .sidebar {
    min-width: 0;
  }

  .app-nav-rail {
    width: 100%;
    max-width: 100vw;
    min-height: 58px;
    padding: 6px 8px;
    gap: 6px;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
  }

  .app-nav-rail::-webkit-scrollbar {
    display: none;
  }

  .app-nav-button {
    flex: 0 0 48px;
    width: 48px !important;
    min-width: 48px !important;
    height: 48px;
    min-height: 48px !important;
  }

  .desktop-sidebar-toggle {
    display: none !important;
  }

  .universal-search-panel,
  .sidebar-scroll {
    min-width: 0;
  }

  .add-friend-form {
    grid-template-columns: minmax(0, 1fr) 40px 40px;
    gap: 6px;
  }

  .add-friend-form input,
  .add-friend-form button {
    min-width: 0;
  }

  .chat-header {
    min-width: 0;
  }

  .chat-header-info {
    min-width: 0;
  }

  .chat-call-actions {
    flex: 0 1 auto;
    min-width: 0;
  }

  .chat-call-button {
    min-width: 0;
    max-width: 96px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .message-form {
    grid-template-columns: 44px minmax(0, 1fr) minmax(64px, 82px);
    width: auto;
    max-width: calc(100vw - 20px);
  }

  .attachment-composer {
    width: auto;
    max-width: calc(100vw - 24px);
    overflow-y: auto;
  }

  .attachment-storage {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .attachment-storage select,
  .attachment-caption {
    width: 100%;
    min-width: 0;
  }

  .profile-modal {
    align-items: stretch;
  }

  .profile-modal-window {
    width: calc(100vw - 16px);
    max-height: calc(100dvh - 16px);
  }

  .settings-sidebar {
    max-width: 100%;
    overflow-x: auto;
  }

  .settings-tab.active {
    scroll-margin-inline: 12px;
  }

  .settings-content {
    min-width: 0;
  }

  .group-modal-window,
  .members-modal-window,
  .call-window {
    width: calc(100vw - 24px);
    max-height: calc(100dvh - 24px);
    overflow-y: auto;
  }

  .group-members-list,
  .members-list,
  .manageable-groups-list {
    min-height: 120px;
    overflow-y: auto;
  }

  .call-actions,
  .compact-call-actions {
    grid-template-columns: repeat(auto-fit, minmax(92px, 1fr));
  }
}

@media (max-width: 430px) {
  .chat-header {
    flex-wrap: wrap;
    height: auto;
    min-height: 60px;
  }

  .chat-call-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .chat-call-button {
    flex: 1 1 0;
    max-width: none;
  }
}

@media (max-width: 380px) {
  .add-friend-form {
    grid-template-columns: minmax(0, 1fr) 40px 40px;
    gap: 6px;
    padding: 0 8px 10px;
    align-items: center;
  }

  .add-friend-form input {
    grid-column: 1;
  }

  .add-friend-form button[type="submit"] {
    grid-column: 2;
    width: 40px;
  }

  .add-friend-form .mark-all-read-button {
    grid-column: 3;
    width: 40px;
    min-width: 40px !important;
  }

  .add-friend-form .mark-all-read-button .button-icon {
    margin: 0 auto;
  }
}

/* MES 0.8.9.4 mobile active-state alignment */
.settings-tab.active,
.theme-choice.active,
.app-nav-button.active,
.sidebar-item.active,
.chat-item.active {
  background: var(--accent-soft) !important;
  border-color: var(--accent) !important;
  color: var(--text-main) !important;
  box-shadow:
    0 0 0 1px var(--accent-ring) inset,
    0 0 0 3px var(--accent-glow) !important;
}

.settings-tab:hover:not(.active),
.theme-choice:hover:not(.active),
.app-nav-button:hover:not(.active),
.sidebar-item:hover:not(.active),
.chat-item:hover:not(.active) {
  background: var(--bg-hover) !important;
  border-color: var(--border-strong) !important;
  color: var(--text-main) !important;
  box-shadow: none !important;
}

.profile-login-row {
  flex-wrap: wrap;
}

.profile-login-toggle {
  flex: 0 0 auto;
}

/* MES 0.8.9.7 mobile video call layout */
@media (max-width: 768px) and (orientation: portrait) {
  .call-modal {
    align-items: center;
    justify-content: center;
    padding: 8px;
    background: rgba(0, 0, 0, 0.84);
    overflow: hidden;
  }

  .call-window {
    width: calc(100vw - 16px);
    max-width: none;
    max-height: calc(100dvh - 16px);
    display: flex;
    flex-direction: column;
    padding: 12px;
    border-radius: 12px;
    overflow: hidden;
  }

  .call-info {
    flex: 0 0 auto;
    margin-bottom: 10px;
  }

  .call-video-grid {
    position: relative;
    width: 100%;
    flex: 0 1 auto;
    min-height: 320px;
    max-height: calc(100dvh - 180px);
    aspect-ratio: 16 / 9;
    height: auto;
    margin: 0;
    border-radius: 16px;
    background: #000;
    overflow: hidden;
  }

  .call-window.remote-video-portrait .call-video-grid {
    width: min(100%, calc((100dvh - 180px) * 9 / 16));
    min-height: min(320px, calc(100dvh - 220px));
    aspect-ratio: 9 / 16;
    align-self: center;
  }

  .call-window.remote-video-landscape .call-video-grid,
  .call-window.remote-video-unknown .call-video-grid {
    width: 100%;
    min-height: 190px;
    aspect-ratio: 16 / 9;
    align-self: stretch;
  }

  .call-video.remote {
    width: 100%;
    height: 100%;
    min-height: 0;
    object-fit: contain;
    background: #000;
    border-radius: 16px;
  }

  .call-video.local {
    position: absolute;
    right: 12px;
    bottom: 12px;
    width: min(28vw, 120px);
    height: auto;
    min-width: 0;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 12px;
    z-index: 2;
  }

  .call-window.remote-video-portrait .call-video.local {
    width: min(24vw, 112px);
    aspect-ratio: 3 / 4;
  }

  .call-video-placeholder {
    border-radius: 16px;
  }

  .call-remote-state {
    flex: 0 0 auto;
    margin-bottom: 10px;
  }

  .call-actions {
    flex: 0 0 auto;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 12px;
    padding-bottom: max(0px, env(safe-area-inset-bottom, 0px));
  }

  .call-control-button {
    min-width: 0;
    min-height: 46px;
    padding: 0 8px;
    font-size: 12px;
    line-height: 1.15;
    overflow-wrap: anywhere;
  }
}

@media (max-width: 900px) and (orientation: landscape) {
  .call-modal {
    align-items: center;
    justify-content: center;
    padding: 8px;
    background: rgba(0, 0, 0, 0.84);
    overflow: hidden;
  }

  .call-window {
    width: calc(100vw - 16px);
    height: calc(100dvh - 16px);
    max-width: none;
    max-height: none;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 140px;
    grid-template-rows: auto minmax(0, 1fr);
    gap: 10px;
    padding: 10px;
    border-radius: 12px;
    overflow: hidden;
  }

  .call-info {
    grid-column: 1 / 3;
    grid-row: 1 / 2;
    margin: 0;
  }

  .call-video-grid {
    position: relative;
    grid-column: 1 / 2;
    grid-row: 2 / 3;
    width: auto;
    min-height: 0;
    max-width: 100%;
    max-height: 100%;
    height: 100%;
    aspect-ratio: 16 / 9;
    margin: 0;
    border-radius: 14px;
    background: #000;
    overflow: hidden;
    justify-self: center;
    align-self: center;
  }

  .call-window.remote-video-portrait .call-video-grid {
    aspect-ratio: 9 / 16;
  }

  .call-window.remote-video-landscape .call-video-grid,
  .call-window.remote-video-unknown .call-video-grid {
    width: 100%;
    aspect-ratio: 16 / 9;
  }

  .call-video.remote {
    width: 100%;
    height: 100%;
    min-height: 0;
    object-fit: contain;
    background: #000;
  }

  .call-video.local {
    position: absolute;
    right: 12px;
    bottom: 12px;
    width: min(24vw, 160px);
    height: auto;
    min-width: 0;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 12px;
    z-index: 2;
  }

  .call-window.remote-video-portrait .call-video.local {
    width: min(16vw, 110px);
    aspect-ratio: 3 / 4;
  }

  .call-video-placeholder {
    border-radius: 14px;
  }

  .call-remote-state {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
    align-content: start;
    margin: 0;
    pointer-events: none;
    z-index: 3;
  }

  .call-actions {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding-bottom: max(0px, env(safe-area-inset-bottom, 0px));
  }

  .call-control-button {
    width: 100%;
    min-height: 44px;
    padding: 0 8px;
    font-size: 12px;
    line-height: 1.15;
    overflow-wrap: anywhere;
  }
}

/* MES 0.8.9.8 fullscreen call layout and mobile call actions */
@media (max-width: 768px) {
  body.mobile-chat-open .chat,
  .app.mobile-chat-open .chat {
    grid-template-rows: 64px minmax(0, 1fr) auto;
  }

  body.mobile-chat-open .chat:has(.chat-call-actions:not(.hidden)) .messages,
  .app.mobile-chat-open .chat:has(.chat-call-actions:not(.hidden)) .messages {
    padding-bottom: calc(74px + env(safe-area-inset-bottom, 0px));
  }

  body.mobile-chat-open .chat-call-actions:not(.hidden),
  .app.mobile-chat-open .chat-call-actions:not(.hidden) {
    position: fixed;
    left: 10px;
    right: 10px;
    bottom: calc(72px + env(safe-area-inset-bottom, 0px));
    z-index: 35;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: rgba(18, 18, 18, 0.94);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.42);
    backdrop-filter: blur(12px);
  }

  .chat-call-button {
    width: 100%;
    max-width: none;
    min-height: 44px;
    padding: 0 10px;
  }

  .system-message {
    max-width: min(92%, calc(100vw - 24px));
    padding: 7px 10px;
    overflow-wrap: anywhere;
  }

  .call-message {
    width: auto;
    max-width: min(92%, calc(100vw - 24px));
    min-width: 0;
    overflow-wrap: anywhere;
  }

  .call-message-body {
    min-width: 0;
  }

  .call-message-title,
  .call-message-meta {
    overflow-wrap: anywhere;
  }

  .call-modal.show {
    align-items: stretch !important;
    justify-content: stretch !important;
    padding: 0 !important;
    background: #000;
    overflow: hidden;
  }

  .call-window {
    width: 100vw !important;
    max-width: 100vw !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    min-height: 100dvh;
    border: 0;
    border-radius: 0 !important;
    background: #000;
    box-shadow: none;
    overflow: hidden !important;
  }

  .call-info {
    position: relative;
    z-index: 5;
    padding-top: env(safe-area-inset-top, 0px);
  }

  .call-info h2,
  .call-info p {
    color: #fff;
  }

  .call-video-grid {
    min-width: 0;
    min-height: 0;
    border-radius: 0 !important;
    background: #000;
    box-shadow: none;
  }

  .call-video.remote {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 0;
    border-radius: 0 !important;
    object-fit: contain;
    background: #000;
  }

  .call-video-placeholder {
    border-radius: 0 !important;
    background: #000;
  }

  .call-video.local {
    z-index: 6;
    right: max(12px, env(safe-area-inset-right, 0px));
    bottom: max(92px, calc(82px + env(safe-area-inset-bottom, 0px)));
    width: clamp(104px, 28vw, 150px);
    min-width: 0;
    border-radius: 12px;
  }

  .remote-media-badges {
    left: max(10px, env(safe-area-inset-left, 0px));
    top: max(10px, env(safe-area-inset-top, 0px));
    z-index: 7;
  }

  .call-remote-state {
    position: relative;
    z-index: 6;
    max-width: calc(100vw - 24px);
    margin-left: auto;
    margin-right: auto;
  }

  .call-actions {
    z-index: 8;
  }
}

@media (max-width: 768px) and (orientation: portrait) {
  .call-window {
    display: grid !important;
    grid-template-rows: auto minmax(0, 1fr) auto auto;
    gap: 8px;
    padding: max(10px, env(safe-area-inset-top, 0px)) 10px max(10px, env(safe-area-inset-bottom, 0px));
  }

  .call-info {
    margin: 0;
    padding-left: max(2px, env(safe-area-inset-left, 0px));
    padding-right: max(2px, env(safe-area-inset-right, 0px));
  }

  .call-video-grid {
    align-self: center;
    justify-self: center;
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    margin: 0;
    aspect-ratio: var(--remote-video-aspect, 16 / 9);
  }

  .call-window.remote-video-portrait .call-video-grid {
    width: auto;
    height: 100%;
    max-width: 100%;
    aspect-ratio: var(--remote-video-aspect, 9 / 16);
  }

  .call-window.remote-video-landscape .call-video-grid,
  .call-window.remote-video-unknown .call-video-grid {
    width: 100%;
    height: auto;
    aspect-ratio: var(--remote-video-aspect, 16 / 9);
  }

  .call-window.remote-video-portrait .call-video.local {
    width: clamp(96px, 24vw, 124px);
    aspect-ratio: 3 / 4;
  }

  .call-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin: 0;
    padding: 0 max(0px, env(safe-area-inset-right, 0px)) 0 max(0px, env(safe-area-inset-left, 0px));
  }

  .call-control-button {
    min-height: 46px;
    min-width: 0;
  }
}

@media (max-width: 900px) and (orientation: landscape) {
  .call-window {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: auto minmax(0, 1fr);
    gap: 8px;
    padding:
      max(8px, env(safe-area-inset-top, 0px))
      max(8px, env(safe-area-inset-right, 0px))
      max(8px, env(safe-area-inset-bottom, 0px))
      max(8px, env(safe-area-inset-left, 0px));
  }

  .call-info {
    grid-column: 1 / 2;
    grid-row: 1 / 2;
    margin: 0;
    align-self: start;
  }

  .call-video-grid {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
    align-self: center;
    justify-self: center;
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    margin: 0;
    aspect-ratio: var(--remote-video-aspect, 16 / 9);
  }

  .call-window.remote-video-portrait .call-video-grid {
    width: auto;
    height: 100%;
    aspect-ratio: var(--remote-video-aspect, 9 / 16);
  }

  .call-window.remote-video-landscape .call-video-grid,
  .call-window.remote-video-unknown .call-video-grid {
    width: 100%;
    height: auto;
    aspect-ratio: var(--remote-video-aspect, 16 / 9);
  }

  .call-video.local {
    right: max(12px, env(safe-area-inset-right, 0px));
    bottom: max(12px, env(safe-area-inset-bottom, 0px));
    width: clamp(112px, 20vw, 172px);
  }

  .call-window.remote-video-portrait .call-video.local {
    width: clamp(86px, 13vw, 118px);
    aspect-ratio: 3 / 4;
  }

  .call-remote-state {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
    align-self: start;
    pointer-events: none;
  }

  .call-actions {
    grid-column: 2 / 3;
    grid-row: 1 / 3;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: clamp(112px, 18vw, 150px);
    gap: 8px;
    margin: 0;
    padding: 0;
  }

  .call-control-button {
    width: 100%;
    min-height: 42px;
    min-width: 0;
    padding: 0 8px;
    font-size: 12px;
  }
}

/* MES 0.8.10.0 mobile polish guard */
@media (max-width: 768px) {
  .settings-tab.active,
  .theme-choice.active,
  .app-nav-button.active,
  .sidebar-item.active,
  .chat-item.active {
    background: var(--active-gradient) !important;
    border-color: var(--accent) !important;
    color: var(--text-main) !important;
    box-shadow: var(--active-shadow) !important;
  }

  .settings-tab:hover:not(.active),
  .theme-choice:hover:not(.active),
  .app-nav-button:hover:not(.active),
  .sidebar-item:hover:not(.active),
  .chat-item:hover:not(.active) {
    background: var(--bg-hover) !important;
    border-color: var(--border-strong) !important;
    color: var(--text-main) !important;
    box-shadow: var(--hover-shadow) !important;
    transform: none;
  }

  .message:hover {
    transform: none;
  }

  .empty-list {
    padding: 11px;
  }
}

/* MES 0.8.9.10 mobile composer alignment */
@media (max-width: 768px) {
  .message-form {
    display: flex !important;
    grid-template-columns: none !important;
    align-items: center !important;
    gap: 10px !important;
    width: auto !important;
    max-width: calc(100vw - 16px) !important;
    min-height: 72px !important;
    max-height: none !important;
    margin: 0 8px 8px !important;
    padding:
      10px
      max(10px, env(safe-area-inset-right, 0px))
      calc(10px + env(safe-area-inset-bottom, 0px))
      max(10px, env(safe-area-inset-left, 0px)) !important;
    overflow: visible !important;
  }

  .message-form .file-button,
  .file-button {
    flex: 0 0 48px !important;
    width: 48px !important;
    min-width: 48px !important;
    height: 48px !important;
    min-height: 48px !important;
    border-radius: 12px !important;
  }

  .message-form textarea {
    flex: 1 1 auto !important;
    width: auto !important;
    min-width: 0 !important;
    height: 48px !important;
    min-height: 48px !important;
    max-height: 112px !important;
    padding: 13px 12px !important;
    line-height: 20px !important;
    border-radius: 12px !important;
    overflow-y: auto !important;
  }

  .message-form button:not(.file-button),
  #sendButton {
    flex: 0 1 92px !important;
    width: auto !important;
    min-width: 82px !important;
    max-width: 104px !important;
    height: 48px !important;
    min-height: 48px !important;
    padding: 0 10px !important;
    border-radius: 12px !important;
    font-size: 13px !important;
    line-height: 1 !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    white-space: nowrap !important;
  }
}

/* MES 0.8.9.12 mobile composer textarea autosize */
@media (max-width: 768px) {
  .message-form {
    align-items: flex-end !important;
    min-height: 72px !important;
    max-height: none !important;
    overflow: visible !important;
  }

  .message-form textarea {
    flex: 1 1 auto !important;
    width: auto !important;
    min-width: 0 !important;
    height: 48px !important;
    min-height: 48px !important;
    max-height: 168px !important;
    padding: 13px 12px !important;
    box-sizing: border-box !important;
    line-height: 20px !important;
    resize: none !important;
    overflow-y: hidden !important;
  }

  .message-form .file-button,
  .file-button,
  .message-form button:not(.file-button),
  #sendButton {
    flex: 0 0 48px !important;
    width: 48px !important;
    min-width: 48px !important;
    max-width: 48px !important;
    height: 48px !important;
    min-height: 48px !important;
    max-height: 48px !important;
    align-self: flex-end !important;
    padding: 0 !important;
    box-sizing: border-box !important;
  }

  .message-form button:not(.file-button),
  #sendButton {
    overflow: hidden !important;
    text-overflow: clip !important;
    white-space: nowrap !important;
  }
}

/* MES 0.8.9.11 mobile call start bar */
@media (max-width: 768px) {
  body.mobile-chat-open .chat,
  .app.mobile-chat-open .chat {
    grid-template-rows: 64px minmax(0, 1fr) auto auto auto;
  }

  .mobile-call-start-bar {
    display: none;
  }

  body.mobile-chat-open .mobile-call-start-bar:not(.hidden),
  .app.mobile-chat-open .mobile-call-start-bar:not(.hidden) {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 10px;
    width: auto;
    max-width: calc(100vw - 20px);
    margin: 0 10px;
    padding: 8px 0;
    padding-bottom: calc(8px + env(safe-area-inset-bottom, 0px));
    z-index: 20;
  }

  .mobile-call-start-bar .chat-call-button {
    width: 100%;
    max-width: none;
    min-width: 0;
    min-height: 44px;
    padding: 0 10px;
  }
}

/* MES 0.8.9.12 mobile nav cleanup */
@media (max-width: 768px) {
  .app-nav-rail .desktop-sidebar-toggle,
  .desktop-sidebar-toggle {
    display: none !important;
  }

  .app-nav-spacer {
    display: none !important;
  }

  #navSettingsButton {
    margin-left: auto;
  }
}

/* MES 0.8.10.1 mobile chat header calls */
@media (max-width: 768px) {
  body.mobile-chat-open .chat,
  .app.mobile-chat-open .chat {
    grid-template-rows: 76px minmax(0, 1fr) auto auto;
  }

  body.mobile-chat-open .chat-header,
  .app.mobile-chat-open .chat-header {
    height: 76px;
    min-height: 76px;
    padding:
      12px
      max(10px, env(safe-area-inset-right, 0px))
      12px
      max(10px, env(safe-area-inset-left, 0px));
    gap: 10px;
    align-items: center;
  }

  body.mobile-chat-open .mobile-back-button,
  .app.mobile-chat-open .mobile-back-button {
    width: 44px;
    height: 44px;
    min-width: 44px;
    flex: 0 0 44px;
    background: var(--bg-hover);
    color: var(--accent-strong);
  }

  body.mobile-chat-open .chat-header-info,
  .app.mobile-chat-open .chat-header-info {
    flex: 1 1 auto;
    min-width: 0;
  }

  body.mobile-chat-open .chat-header h1,
  .app.mobile-chat-open .chat-header h1,
  body.mobile-chat-open .chat-header p,
  .app.mobile-chat-open .chat-header p {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  body.mobile-chat-open .chat-header .chat-call-actions:not(.hidden),
  .app.mobile-chat-open .chat-header .chat-call-actions:not(.hidden) {
    position: static !important;
    display: flex !important;
    flex: 0 0 auto;
    grid-template-columns: none !important;
    gap: 8px;
    width: auto;
    max-width: none;
    margin: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent !important;
    box-shadow: none !important;
    backdrop-filter: none;
  }

  body.mobile-chat-open .chat:has(.chat-call-actions:not(.hidden)) .messages,
  .app.mobile-chat-open .chat:has(.chat-call-actions:not(.hidden)) .messages {
    padding-bottom: 12px;
  }

  body.mobile-chat-open .chat-header .chat-call-button,
  .app.mobile-chat-open .chat-header .chat-call-button {
    width: 40px !important;
    min-width: 40px !important;
    max-width: 40px !important;
    height: 40px !important;
    min-height: 40px !important;
    padding: 0 !important;
    border-radius: 12px !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  body.mobile-chat-open .chat-call-button-label,
  .app.mobile-chat-open .chat-call-button-label {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
  }

  body.mobile-chat-open .chat-call-button-icon,
  .app.mobile-chat-open .chat-call-button-icon {
    display: inline-flex;
    width: 18px;
    height: 18px;
    font-size: 18px;
    line-height: 1;
  }

  body.mobile-chat-open .chat-call-button-icon .lucide-icon,
  .app.mobile-chat-open .chat-call-button-icon .lucide-icon {
    width: 18px;
    height: 18px;
  }

  .mobile-call-start-bar,
  body.mobile-chat-open .mobile-call-start-bar:not(.hidden),
  .app.mobile-chat-open .mobile-call-start-bar:not(.hidden) {
    display: none !important;
  }
}

/* MES 0.8.9.12 mobile light call theme guard */
@media (max-width: 768px) {
  body.theme-light .call-modal.show {
    background: var(--call-overlay-bg) !important;
  }

  body.theme-light .call-window {
    background: var(--call-window-bg) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-main) !important;
    box-shadow: var(--call-window-shadow) !important;
  }

  body.theme-light .call-info h2,
  body.theme-light .call-info p {
    color: var(--text-main) !important;
  }

  body.theme-light .call-info p {
    color: var(--text-secondary) !important;
  }

  body.theme-light .call-control-button,
  body.theme-light .call-action-button {
    border: 1px solid var(--border-color) !important;
    background: var(--call-control-bg) !important;
    color: var(--text-main) !important;
  }

  body.theme-light .call-control-button:hover,
  body.theme-light .call-action-button:hover {
    border-color: var(--accent) !important;
    background: var(--call-control-hover-bg) !important;
    box-shadow: 0 0 0 3px var(--accent-soft) !important;
  }

  body.theme-light .call-action-button.accept {
    border-color: rgba(var(--accent-rgb), 0.34) !important;
    background: var(--accent) !important;
    color: var(--button-text) !important;
  }

  body.theme-light .call-action-button.reject,
  body.theme-light .call-action-button.end {
    border-color: rgba(216, 107, 107, 0.28) !important;
    background: var(--call-danger-bg) !important;
    color: var(--call-danger-text) !important;
  }

  body.theme-light .call-video-grid,
  body.theme-light .call-video,
  body.theme-light .call-video.remote,
body.theme-light .call-video-placeholder {
    background: #000 !important;
  }
}

/* MES 0.8.9.14 mobile call landscape controls and icon buttons */
@media (max-width: 900px) {
  .call-modal.show {
    overflow: hidden !important;
    overscroll-behavior: contain;
    touch-action: none;
  }

  .call-window {
    max-height: 100dvh !important;
    overflow: hidden !important;
    position: relative;
  }

  .call-icon-button {
    width: 52px !important;
    min-width: 52px !important;
    max-width: 52px !important;
    height: 52px !important;
    min-height: 52px !important;
    max-height: 52px !important;
    flex: 0 0 52px;
    padding: 0 !important;
    font-size: 0 !important;
  }

  .call-control-icon,
  .call-control-icon .lucide-icon {
    width: 22px;
    height: 22px;
    font-size: 22px;
  }
}

@media (max-width: 768px) and (orientation: portrait) {
  .call-window {
    grid-template-rows: auto minmax(0, 1fr) auto auto !important;
    min-height: 100dvh !important;
    max-height: 100dvh !important;
    padding:
      max(10px, env(safe-area-inset-top, 0px))
      max(10px, env(safe-area-inset-right, 0px))
      max(10px, env(safe-area-inset-bottom, 0px))
      max(10px, env(safe-area-inset-left, 0px)) !important;
  }

  .call-video-grid {
    min-height: 0 !important;
    max-height: 100% !important;
  }

  .call-actions {
    grid-template-columns: repeat(4, 52px) !important;
    justify-content: center;
    align-items: center;
    gap: 8px !important;
    padding: 0 !important;
  }

  .call-video.local {
    z-index: 6;
    bottom: max(76px, calc(64px + env(safe-area-inset-bottom, 0px))) !important;
  }
}

@media (max-width: 900px) and (orientation: landscape) {
  .call-window {
    min-height: 100dvh !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    grid-template-columns: minmax(0, 1fr) !important;
    grid-template-rows: minmax(0, 1fr) !important;
    gap: 0 !important;
    padding:
      max(8px, env(safe-area-inset-top, 0px))
      calc(env(safe-area-inset-right, 0px) + 72px)
      max(8px, env(safe-area-inset-bottom, 0px))
      max(8px, env(safe-area-inset-left, 0px)) !important;
    overflow: hidden !important;
    position: relative;
  }

  .call-info {
    position: absolute;
    left: max(12px, env(safe-area-inset-left, 0px));
    top: max(10px, env(safe-area-inset-top, 0px));
    max-width: min(50vw, 360px);
    margin: 0 !important;
    pointer-events: none;
  }

  .call-info h2,
  .call-info p {
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.72);
  }

  .call-video-grid {
    grid-column: 1 / 2 !important;
    grid-row: 1 / 2 !important;
    width: min(100%, calc(100vw - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px) - 88px)) !important;
    height: 100% !important;
    min-height: 0 !important;
    max-height: 100% !important;
    align-self: stretch !important;
    justify-self: start !important;
    overflow: hidden !important;
    z-index: 1;
  }

  .call-window.remote-video-portrait .call-video-grid {
    width: auto !important;
    height: 100% !important;
    justify-self: center !important;
  }

  .call-window.remote-video-landscape .call-video-grid,
  .call-window.remote-video-unknown .call-video-grid {
    width: min(100%, calc(100vw - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px) - 88px)) !important;
    height: 100% !important;
  }

  .call-actions {
    position: fixed !important;
    right: calc(env(safe-area-inset-right, 0px) + 10px) !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    width: 52px !important;
    min-width: 52px !important;
    max-width: 52px !important;
    max-height: calc(100dvh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px) - 20px) !important;
    display: flex !important;
    flex-direction: column !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: visible !important;
    pointer-events: auto !important;
    visibility: visible !important;
    opacity: 1 !important;
    z-index: 40 !important;
  }

  .call-actions .call-icon-button {
    width: 52px !important;
    min-width: 52px !important;
    max-width: 52px !important;
    height: 52px !important;
    min-height: 52px !important;
    max-height: 52px !important;
    flex: 0 0 52px !important;
    padding: 0 !important;
    pointer-events: auto !important;
    visibility: visible !important;
    opacity: 1 !important;
  }

  .call-control-icon,
  .call-control-icon .lucide-icon {
    color: currentColor !important;
    stroke: currentColor !important;
  }

  .call-remote-state {
    position: absolute;
    left: max(12px, env(safe-area-inset-left, 0px));
    bottom: max(12px, env(safe-area-inset-bottom, 0px));
    max-width: calc(100vw - 96px - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px));
    margin: 0 !important;
    pointer-events: none;
  }

  .call-video.local {
    z-index: 6;
    right: calc(env(safe-area-inset-right, 0px) + 76px) !important;
    bottom: max(12px, env(safe-area-inset-bottom, 0px)) !important;
    width: clamp(104px, 20vw, 160px) !important;
    pointer-events: none;
  }
}

@media (max-height: 520px) and (min-width: 600px) {
  .call-modal.show {
    overflow: hidden !important;
    overscroll-behavior: contain;
    touch-action: none;
  }

  .call-window {
    width: 100vw !important;
    max-width: 100vw !important;
    min-height: 100dvh !important;
    height: 100dvh !important;
    max-height: 100dvh !important;
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) !important;
    grid-template-rows: minmax(0, 1fr) !important;
    padding:
      max(8px, env(safe-area-inset-top, 0px))
      calc(env(safe-area-inset-right, 0px) + 72px)
      max(8px, env(safe-area-inset-bottom, 0px))
      max(8px, env(safe-area-inset-left, 0px)) !important;
    overflow: hidden !important;
    position: relative;
  }

  .call-video-grid {
    width: min(100%, calc(100vw - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px) - 88px)) !important;
    height: 100% !important;
    min-height: 0 !important;
    max-height: 100% !important;
    justify-self: start !important;
    overflow: hidden !important;
  }

  .call-actions {
    position: fixed !important;
    right: calc(env(safe-area-inset-right, 0px) + 10px) !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    width: 52px !important;
    min-width: 52px !important;
    max-width: 52px !important;
    display: flex !important;
    flex-direction: column !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: visible !important;
    pointer-events: auto !important;
    visibility: visible !important;
    opacity: 1 !important;
    z-index: 40 !important;
  }

  .call-actions .call-icon-button {
    width: 52px !important;
    min-width: 52px !important;
    height: 52px !important;
    min-height: 52px !important;
    flex: 0 0 52px !important;
  }

  .call-video.local {
    right: calc(env(safe-area-inset-right, 0px) + 76px) !important;
    bottom: max(12px, env(safe-area-inset-bottom, 0px)) !important;
    pointer-events: none;
  }
}

/* MES 0.8.9.13 mobile avatar sizing */
@media (max-width: 768px) {
  .auth-modal {
    background: rgba(var(--modal-overlay-rgb, 0, 0, 0), var(--modal-overlay-alpha, 0.42)) !important;
  }

  .auth-window {
    background: var(--bg-card) !important;
    border-color: var(--border-color) !important;
    color: var(--text-main) !important;
  }

  .auth-window input {
    background: var(--bg-soft) !important;
    border-color: var(--border-color) !important;
    color: var(--text-main) !important;
  }

  .chat-header-avatar,
  .profile-avatar-preview {
    width: 38px !important;
    height: 38px !important;
    border-radius: 10px !important;
    flex: 0 0 38px !important;
  }

  .profile-avatar-controls {
    align-items: center !important;
    flex-wrap: wrap;
  }
}

/* MES 0.8.9.15 mobile avatar upload layout */
@media (max-width: 768px) {
  .profile-avatar-controls {
    display: grid !important;
    grid-template-columns: 42px minmax(0, 1fr) 54px !important;
    align-items: center !important;
    gap: 10px !important;
  }

  .profile-avatar-controls #profileAvatarTextInput {
    min-width: 0 !important;
  }

  .profile-avatar-upload-button,
  .profile-avatar-reset-button {
    grid-column: 1 / -1 !important;
    width: 100% !important;
    min-width: 0 !important;
    min-height: 42px !important;
    white-space: nowrap !important;
  }

  .profile-avatar-reset-button {
    margin-top: 0 !important;
  }

  .avatar-editor-modal {
    padding: max(10px, env(safe-area-inset-top, 0px)) max(10px, env(safe-area-inset-right, 0px)) max(10px, env(safe-area-inset-bottom, 0px)) max(10px, env(safe-area-inset-left, 0px)) !important;
    align-items: center !important;
    width: 100vw !important;
    max-width: calc(100vw - 20px) !important;
    overflow-x: hidden !important;
    box-sizing: border-box !important;
  }

  .avatar-editor-window {
    width: min(420px, calc(100vw - 20px)) !important;
    max-width: calc(100vw - 20px) !important;
    max-height: calc(100dvh - 20px) !important;
    overflow: auto !important;
    overflow-x: hidden !important;
    box-sizing: border-box !important;
  }

  .avatar-editor-body {
    grid-template-columns: 1fr !important;
    gap: 14px !important;
    min-width: 0 !important;
    max-width: calc(100vw - 20px) !important;
    overflow-x: hidden !important;
    box-sizing: border-box !important;
  }

  .avatar-editor-preview-wrap {
    width: min(58vw, 220px) !important;
    max-width: 100% !important;
  }

  .avatar-editor-controls {
    gap: 12px !important;
    min-width: 0 !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .avatar-editor-field input[type="range"] {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
  }

  .avatar-editor-rotate-buttons {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 8px !important;
    max-width: 100% !important;
    overflow: hidden !important;
    box-sizing: border-box !important;
  }

  .avatar-editor-actions {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 8px !important;
    max-width: 100% !important;
    overflow: hidden !important;
    box-sizing: border-box !important;
  }

  .avatar-editor-rotate-buttons > button,
  .avatar-editor-actions > button {
    width: 100% !important;
    min-width: 0 !important;
    min-height: 40px !important;
    height: 40px !important;
    border-width: 1px !important;
    padding-inline: 10px !important;
    box-sizing: border-box !important;
    user-select: none !important;
    touch-action: manipulation !important;
    transform: none !important;
  }

  .avatar-editor-actions #avatarEditorApplyButton {
    grid-column: 1 / -1 !important;
  }
}

@media (max-width: 380px) {
  .avatar-editor-actions {
    grid-template-columns: 1fr !important;
  }

  .avatar-editor-preview-wrap {
    width: min(64vw, 196px) !important;
  }
}

/* MES 0.8.9.13 mobile send icon and composer autosize */
@media (max-width: 768px) {
  .message-form textarea {
    max-height: 168px !important;
  }

  #sendButton {
    flex: 0 0 48px !important;
    width: 48px !important;
    min-width: 48px !important;
    max-width: 48px !important;
    padding: 0 !important;
  }

  #sendButton .send-button-label {
    display: none !important;
  }

  #sendButton .send-button-icon {
    display: block !important;
    width: 22px !important;
    height: 22px !important;
    color: currentColor !important;
    stroke: currentColor !important;
  }
}

/* MES 0.8.9.18 audio call controls */
@media (max-width: 768px) and (orientation: portrait) {
  .call-actions.call-type-audio {
    grid-template-columns: repeat(3, 52px) !important;
  }
}

@media (max-width: 900px) and (orientation: landscape), (max-height: 520px) and (min-width: 600px) {
  .call-actions.call-type-audio {
    max-height: calc(3 * 52px + 2 * 8px) !important;
  }
}

/* MES 0.9.1-hotfix mobile settings modal scroll */
@media (max-width: 768px) {
  .profile-modal.settings-profile-mode {
    align-items: center !important;
    justify-content: center !important;
    padding:
      max(12px, env(safe-area-inset-top, 0px))
      max(12px, env(safe-area-inset-right, 0px))
      max(12px, env(safe-area-inset-bottom, 0px))
      max(12px, env(safe-area-inset-left, 0px)) !important;
    overflow: hidden !important;
    box-sizing: border-box !important;
  }

  .profile-modal.settings-profile-mode .profile-modal-window {
    width: min(100%, calc(100vw - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px) - 24px)) !important;
    max-width: calc(100vw - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px) - 24px) !important;
    height: calc(100dvh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px) - 24px) !important;
    max-height: calc(100dvh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px) - 24px) !important;
    display: flex !important;
    flex-direction: column !important;
    overflow: hidden !important;
    box-sizing: border-box !important;
  }

  .profile-modal.settings-profile-mode .settings-header {
    flex: 0 0 auto !important;
    min-width: 0 !important;
  }

  .profile-modal.settings-profile-mode .profile-form {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) !important;
    grid-template-rows: auto minmax(0, 1fr) !important;
    flex: 1 1 auto !important;
    min-width: 0 !important;
    min-height: 0 !important;
    max-height: none !important;
    overflow: hidden !important;
  }

  .profile-modal.settings-profile-mode .settings-sidebar {
    min-width: 0 !important;
    min-height: 0 !important;
    max-width: 100% !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
  }

  .profile-modal.settings-profile-mode .settings-content {
    position: relative !important;
    min-width: 0 !important;
    min-height: 0 !important;
    max-width: 100% !important;
    width: 100% !important;
    overflow-x: hidden !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    padding-bottom: calc(88px + env(safe-area-inset-bottom, 0px)) !important;
    box-sizing: border-box !important;
  }

  .profile-modal.settings-profile-mode .settings-section,
  .profile-modal.settings-profile-mode .settings-card {
    min-width: 0 !important;
    max-width: 100% !important;
    width: 100% !important;
    overflow-x: hidden !important;
    box-sizing: border-box !important;
  }
}

/* MES 0.9.3 balanced mobile profile dialog */
@media (max-width: 768px) {
  .profile-modal.quick-profile-mode {
    padding:
      max(10px, env(safe-area-inset-top, 0px))
      max(10px, env(safe-area-inset-right, 0px))
      max(10px, env(safe-area-inset-bottom, 0px))
      max(10px, env(safe-area-inset-left, 0px)) !important;
  }

  .profile-modal.quick-profile-mode .profile-modal-window {
    width: calc(100vw - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px) - 20px) !important;
    max-width: 520px !important;
    max-height: calc(100dvh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px) - 20px) !important;
    border-radius: 18px !important;
  }

  .profile-modal.quick-profile-mode .settings-header {
    min-height: 58px !important;
    padding: 14px 14px !important;
  }

  .profile-modal.quick-profile-mode .settings-header h2 {
    font-size: 26px !important;
  }

  .profile-modal.quick-profile-mode .modal-close-button {
    width: 40px !important;
    height: 40px !important;
    border-radius: 12px !important;
  }

  .profile-modal.quick-profile-mode .profile-form {
    max-height: calc(100dvh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px) - 78px) !important;
  }

  .profile-modal.quick-profile-mode .settings-content {
    padding: 14px !important;
  }

  .profile-modal.quick-profile-mode .profile-login-row {
    grid-template-columns: minmax(0, 1fr) auto !important;
  }

  .profile-modal.quick-profile-mode .profile-login-toggle {
    width: auto !important;
  }

  .profile-modal.quick-profile-mode .profile-avatar-controls {
    grid-template-columns: 56px minmax(0, 1fr) 52px !important;
    gap: 10px !important;
    padding: 10px !important;
  }

  .profile-modal.quick-profile-mode .profile-avatar-preview {
    width: 50px !important;
    height: 50px !important;
  }

  .profile-modal.quick-profile-mode .profile-avatar-upload-button,
  .profile-modal.quick-profile-mode .profile-avatar-reset-button {
    grid-column: 1 / -1 !important;
    width: 100% !important;
    min-height: 40px !important;
  }

  .profile-modal.quick-profile-mode .settings-section-actions {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    margin: 16px -14px -14px !important;
    padding: 12px 14px calc(12px + env(safe-area-inset-bottom, 0px)) !important;
  }

  .profile-modal.quick-profile-mode .settings-section-actions button {
    width: 100% !important;
    min-width: 0 !important;
    min-height: 42px !important;
  }

  .profile-modal.quick-profile-mode .settings-section-actions button[type="submit"] {
    grid-column: 1 / -1 !important;
    order: 1 !important;
  }

  .profile-modal.quick-profile-mode .quick-profile-close-button {
    order: 2 !important;
  }

  .profile-modal.quick-profile-mode #profileLogoutButton {
    order: 3 !important;
    margin-right: 0 !important;
  }
}

/* MES 0.9.1 mobile UI audit guard */
@media (max-width: 768px) {
  .sidebar-item-menu-button,
  .mobile-back-button {
    background: var(--button-neutral-bg) !important;
    border: 1px solid var(--button-neutral-border) !important;
    color: var(--button-neutral-text) !important;
    box-shadow: none !important;
  }

  .sidebar-item-menu-button:hover,
  .sidebar-item-menu-button:focus-visible,
  .mobile-back-button:hover,
  .mobile-back-button:focus-visible,
  .sidebar-item-menu-button:active,
  .mobile-back-button:active {
    background: var(--button-neutral-hover-bg) !important;
    border-color: var(--border-strong) !important;
    color: var(--button-neutral-hover-text) !important;
    box-shadow: 0 0 0 3px var(--button-focus-ring) !important;
  }

  body.mobile-chat-open .chat-call-actions:not(.hidden),
  .app.mobile-chat-open .chat-call-actions:not(.hidden) {
    background: var(--bg-card) !important;
    border-color: var(--border-color) !important;
    box-shadow: 0 16px 40px var(--shadow-soft) !important;
  }

  .app-nav-rail {
    scrollbar-width: thin !important;
    scrollbar-color: var(--mes-scrollbar-thumb, rgba(var(--accent-rgb), 0.55)) var(--mes-scrollbar-track, rgba(255, 255, 255, 0.04)) !important;
  }

  .app-nav-rail::-webkit-scrollbar {
    display: block !important;
    height: 6px;
  }

  .app-nav-rail::-webkit-scrollbar-button {
    display: none !important;
  }

  .app-nav-rail::-webkit-scrollbar-track {
    background: var(--mes-scrollbar-track, rgba(255, 255, 255, 0.035));
    border-radius: 999px;
  }

  .app-nav-rail::-webkit-scrollbar-thumb {
    background: var(--mes-scrollbar-thumb-bg, linear-gradient(90deg, rgba(var(--accent-rgb), 0.55), rgba(var(--accent-rgb), 0.72)));
    border-radius: 999px;
  }
}

/* MES 0.9.1-hotfix mobile shell transitions */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
    will-change: transform, opacity;
    transition:
      transform 280ms cubic-bezier(0.2, 0, 0.2, 1),
      opacity 220ms ease;
  }

  .chat {
    transform: translateX(12px);
    opacity: 0;
    pointer-events: none;
    will-change: transform, opacity;
    transition:
      transform 280ms cubic-bezier(0.2, 0, 0.2, 1),
      opacity 220ms ease;
  }

  body.mobile-chat-open .sidebar,
  .app.mobile-chat-open .sidebar {
    transform: translateX(-16px);
    opacity: 0;
    pointer-events: none;
  }

  body.mobile-chat-open .chat,
  .app.mobile-chat-open .chat {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
  }

  body.mobile-chat-open .app-nav-rail,
  .app.mobile-chat-open .app-nav-rail {
    display: flex;
  }
}

@media (max-width: 768px) and (prefers-reduced-motion: reduce) {
  .sidebar,
  .chat {
    transition:
      transform 1ms linear,
      opacity 1ms linear;
  }
}

@media (max-width: 768px) and (orientation: portrait) {
  .call-actions {
    grid-template-columns: repeat(4, 52px) !important;
    justify-content: center !important;
    align-items: center !important;
  }

  .call-actions.call-type-video {
    grid-template-columns: repeat(5, 52px) !important;
  }

  .call-actions.call-type-audio {
    grid-template-columns: repeat(3, 52px) !important;
  }
}

@media (max-width: 900px) and (orientation: landscape) {
  .call-actions {
    max-height: calc(100dvh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px) - 20px) !important;
  }

  .call-actions.call-type-video {
    max-height: calc(5 * 52px + 4 * 8px) !important;
  }
}

/* Keep logout destructive on every viewport, after mobile theme overrides. */
#profileLogoutButton.settings-logout-button,
.settings-sidebar #profileLogoutButton.settings-logout-button,
.profile-modal #profileLogoutButton.settings-logout-button,
body.theme-light #profileLogoutButton.settings-logout-button,
body.theme-dark #profileLogoutButton.settings-logout-button {
  display: flex !important;
  align-items: center !important;
  justify-content: flex-start !important;
  width: 100% !important;
  min-height: 42px !important;
  margin-top: 8px !important;
  padding: 0 14px !important;
  border-radius: 14px !important;
  background: #2a1013 !important;
  background-color: #2a1013 !important;
  background-image: none !important;
  border: 1px solid #6f242d !important;
  color: #ffb4bc !important;
  box-shadow: none !important;
}

#profileLogoutButton.settings-logout-button:hover:not(:disabled),
#profileLogoutButton.settings-logout-button:focus-visible:not(:disabled),
.settings-sidebar #profileLogoutButton.settings-logout-button:hover:not(:disabled),
.settings-sidebar #profileLogoutButton.settings-logout-button:focus-visible:not(:disabled),
.profile-modal #profileLogoutButton.settings-logout-button:hover:not(:disabled),
.profile-modal #profileLogoutButton.settings-logout-button:focus-visible:not(:disabled),
body.theme-light #profileLogoutButton.settings-logout-button:hover:not(:disabled),
body.theme-light #profileLogoutButton.settings-logout-button:focus-visible:not(:disabled),
body.theme-dark #profileLogoutButton.settings-logout-button:hover:not(:disabled),
body.theme-dark #profileLogoutButton.settings-logout-button:focus-visible:not(:disabled) {
  background: #3a1519 !important;
  background-color: #3a1519 !important;
  background-image: none !important;
  border-color: #9c3340 !important;
  color: #ffd7dc !important;
  box-shadow: 0 0 0 3px rgba(156, 51, 64, 0.20) !important;
}