/* Chtio Stage278: authentication, safe modal behavior, async-save feedback and managed avatars. */
.chtio_stage278_auth,
.chtio_stage278_dashboard,
.chtio_stage278_admin {
    --chtio_278_bg: #f5f6f9;
    --chtio_278_surface: #ffffff;
    --chtio_278_surface_2: #f8f9fc;
    --chtio_278_border: #dde1e8;
    --chtio_278_border_2: #cbd1dc;
    --chtio_278_text: #282a31;
    --chtio_278_muted: #737987;
    --chtio_278_dark: #303139;
    --chtio_278_blue: #2678db;
    --chtio_278_green: #12a66b;
    --chtio_278_red: #cd4855;
    --chtio_278_shadow: 0 18px 54px rgba(29, 32, 41, .08);
}

.chtio_stage278_auth *,
.chtio_stage278_auth *::before,
.chtio_stage278_auth *::after,
.chtio_stage278_dashboard *,
.chtio_stage278_dashboard *::before,
.chtio_stage278_dashboard *::after,
.chtio_stage278_admin *,
.chtio_stage278_admin *::before,
.chtio_stage278_admin *::after {
    box-sizing: border-box;
}

/* Authentication */
.chtio_stage278_auth .chtio_auth_shell {
    display: grid;
    grid-template-columns: minmax(420px, .92fr) minmax(520px, 1.08fr);
    min-height: 100dvh;
    background: var(--chtio_278_bg);
}

.chtio_stage278_auth .chtio_auth_showcase {
    position: sticky;
    top: 0;
    display: flex;
    flex-direction: column;
    min-width: 0;
    height: 100dvh;
    min-height: 720px;
    padding: clamp(34px, 4vw, 64px);
    overflow: hidden;
    color: #fff;
    background: #202126;
}

.chtio_stage278_auth .chtio_auth_showcase::before {
    right: -270px;
    bottom: -290px;
    width: 700px;
    height: 700px;
    border-color: rgba(255,255,255,.1);
    box-shadow: 0 0 0 72px rgba(255,255,255,.025), 0 0 0 144px rgba(255,255,255,.018);
}

.chtio_stage278_auth .chtio_auth_brand {
    width: min(210px, 48%);
}

.chtio_stage278_auth .chtio_auth_brand img {
    display: block;
    width: 100%;
    height: auto;
}

.chtio_stage278_auth .chtio_auth_copy {
    width: min(650px, 100%);
    margin: auto 0 clamp(28px, 4vh, 52px);
}

.chtio_stage278_auth .chtio_auth_copy h2 {
    max-width: 620px;
    margin: 16px 0 18px;
    font-size: clamp(42px, 5vw, 72px);
    line-height: 1.02;
    letter-spacing: -.045em;
    overflow-wrap: normal;
}

.chtio_stage278_auth .chtio_auth_copy p {
    max-width: 580px;
    margin: 0;
    color: rgba(255,255,255,.72);
    font-size: 15px;
    line-height: 1.62;
}

.chtio_stage278_auth .chtio_auth_copy ul {
    gap: 10px;
    margin-top: 24px;
    color: rgba(255,255,255,.9);
    font-size: 12px;
}

.chtio_stage278_auth .chtio_auth_demo {
    width: min(470px, 100%);
    border-radius: 5px;
    background: #3a3b42;
    box-shadow: 0 24px 58px rgba(0,0,0,.23);
    backdrop-filter: none;
}

.chtio_stage278_auth .chtio_auth_demo p {
    border-radius: 5px;
}

.chtio_stage278_auth .chtio_auth_panel {
    min-width: 0;
    min-height: 100dvh;
    padding: 24px clamp(24px, 5vw, 82px) 48px;
    background: var(--chtio_278_bg);
}

.chtio_stage278_auth .chtio_auth_panel > header {
    position: relative;
    z-index: 3;
    min-height: 44px;
}

.chtio_stage278_auth .chtio_auth_panel_inner {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-width: 0;
    padding: clamp(24px, 4vh, 54px) 0 20px;
}

.chtio_stage278_auth .auth-card {
    width: min(560px, 100%);
    min-width: 0;
    padding: clamp(24px, 3vw, 38px);
    border: 1px solid var(--chtio_278_border);
    border-radius: 5px;
    background: var(--chtio_278_surface);
    box-shadow: var(--chtio_278_shadow);
}

.chtio_stage278_auth .activation-card {
    width: min(760px, 100%);
}

.chtio_stage278_auth .auth-card-head {
    margin-bottom: 24px;
}

.chtio_stage278_auth .auth-card-head h1,
.chtio_stage278_auth .auth-simple-head h1 {
    margin: 8px 0 10px;
    color: var(--chtio_278_text);
    font-size: clamp(31px, 4vw, 46px);
    line-height: 1.08;
    letter-spacing: -.035em;
}

.chtio_stage278_auth .auth-card-head p,
.chtio_stage278_auth .auth-simple-head p,
.chtio_stage278_auth .page-note {
    margin: 0;
    color: var(--chtio_278_muted);
    line-height: 1.62;
}

.chtio_stage278_auth .auth-simple-head {
    margin-bottom: 24px;
}

.chtio_stage278_auth .auth-form,
.chtio_stage278_auth .auth-simple-form {
    display: grid;
    gap: 16px;
}

.chtio_stage278_auth .auth-field,
.chtio_stage278_auth .auth-simple-form > label {
    display: grid;
    gap: 7px;
    min-width: 0;
    color: var(--chtio_278_text);
    font-size: 12px;
    font-weight: 600;
}

.chtio_stage278_auth :where(.input, input:not([type=checkbox]):not([type=radio]), select, textarea) {
    width: 100%;
    max-width: 100%;
    min-height: 46px;
    padding: 11px 13px;
    border: 1px solid var(--chtio_278_border_2);
    border-radius: 5px;
    background: var(--chtio_278_surface_2);
    color: var(--chtio_278_text);
    font: inherit;
}

.chtio_stage278_auth :where(.input, input:not([type=checkbox]):not([type=radio]), select, textarea):focus {
    border-color: #7e8aa0;
    outline: 0;
    box-shadow: 0 0 0 3px rgba(38,120,219,.11);
    background: #fff;
}

.chtio_stage278_auth .auth-form > .button,
.chtio_stage278_auth .auth-simple-form > .button {
    width: 100%;
    min-height: 46px;
}

.chtio_stage278_auth .auth-form-row {
    flex-wrap: wrap;
    min-height: 28px;
}

.chtio_stage278_auth .auth-google-button {
    min-height: 48px;
    border-radius: 5px;
}

.chtio_stage278_auth .auth-password-toggle {
    top: 6px;
    right: 6px;
    width: 34px;
    height: 34px;
    border-radius: 5px;
}

.chtio_stage278_auth .auth-simple-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
    font-size: 12px;
}

.chtio_stage278_auth .auth-result-icon {
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    margin-bottom: 16px;
    border: 1px solid var(--chtio_278_border);
    border-radius: 5px;
    background: var(--chtio_278_surface_2);
    color: var(--chtio_278_green);
    font-size: 24px;
    font-weight: 600;
}

/* Activation */
.chtio_stage278_auth .activation-progress {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin: 0 0 22px;
}

.chtio_stage278_auth .activation-progress i {
    display: block;
    height: 6px;
    border-radius: 4px;
    background: #e9ecf2;
}

.chtio_stage278_auth .activation-progress i.is-done {
    background: var(--chtio_278_green);
}

.chtio_stage278_auth .activation-progress i.is-current {
    background: var(--chtio_278_blue);
}

.chtio_stage278_auth .activation-step {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
    min-width: 0;
    padding: 18px;
    margin-top: 12px;
    border: 1px solid var(--chtio_278_border);
    border-radius: 5px;
    background: var(--chtio_278_surface_2);
}

.chtio_stage278_auth .activation-step.is-current {
    border-color: #aeb9cb;
    background: #fff;
    box-shadow: 0 12px 30px rgba(33,42,60,.07);
}

.chtio_stage278_auth .activation-step.is-locked {
    opacity: .66;
}

.chtio_stage278_auth .activation-step-number {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border: 1px solid var(--chtio_278_border_2);
    border-radius: 5px;
    background: #fff;
    color: var(--chtio_278_text);
    font-weight: 600;
}

.chtio_stage278_auth .activation-step.is-done .activation-step-number {
    border-color: rgba(18,166,107,.35);
    color: var(--chtio_278_green);
    background: rgba(18,166,107,.08);
}

.chtio_stage278_auth .activation-step-body,
.chtio_stage278_auth .activation-step-body > header,
.chtio_stage278_auth .activation-step-body > header > div {
    min-width: 0;
}

.chtio_stage278_auth .activation-step-body > header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
}

.chtio_stage278_auth .activation-step-body h2 {
    margin: 0 0 7px;
    color: var(--chtio_278_text);
    font-size: clamp(21px, 2.4vw, 28px);
    line-height: 1.18;
}

.chtio_stage278_auth .activation-step-body p {
    margin: 0;
    color: var(--chtio_278_muted);
    line-height: 1.58;
    overflow-wrap: anywhere;
}

.chtio_stage278_auth .activation-step-body > header > span {
    flex: 0 0 auto;
    padding: 6px 9px;
    border: 1px solid var(--chtio_278_border);
    border-radius: 5px;
    background: #fff;
    color: var(--chtio_278_muted);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
}

.chtio_stage278_auth .activation-code-form {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 10px;
    margin-top: 16px;
}

.chtio_stage278_auth .activation-code-form label {
    display: grid;
    gap: 7px;
}

.chtio_stage278_auth .activation-code-form input {
    letter-spacing: .22em;
    font-size: 18px;
    font-weight: 600;
    text-align: center;
}

.chtio_stage278_auth .activation-inline-form {
    margin-top: 10px;
}

.chtio_stage278_auth .activation-inline-form button {
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--chtio_278_blue);
    font-weight: 600;
}

.chtio_stage278_auth .activation-telegram-button {
    margin-top: 16px;
}

.chtio_stage278_auth .activation-privacy,
.chtio_stage278_auth .activation-waiting {
    margin-top: 12px !important;
    font-size: 12px;
}

/* Async save feedback */
.chtio_async_toast {
    position: fixed;
    top: 76px;
    right: 18px;
    z-index: 16000;
    max-width: min(420px, calc(100vw - 36px));
    padding: 13px 16px;
    border: 1px solid var(--chtio_278_border, #dde1e8);
    border-radius: 5px;
    background: #fff;
    color: #2c2e35;
    box-shadow: 0 18px 48px rgba(26,29,38,.16);
    font-size: 13px;
    font-weight: 600;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity .16s ease, transform .16s ease;
}

.chtio_async_toast.is-visible {
    opacity: 1;
    transform: none;
}

.chtio_async_toast.is-success {
    border-left: 4px solid #12a66b;
}

.chtio_async_toast.is-error {
    border-left: 4px solid #cd4855;
}

/* Managed user avatars */
.chtio_stage278_dashboard .chtio_avatar,
.chtio_stage278_admin .chtio_avatar,
.chtio_stage278_admin .admin-user-avatar,
.chtio_stage278_admin .admin-user-modal-avatar,
.chtio_stage278_admin .chtio_stage277_operator_avatar {
    overflow: hidden;
}

.chtio_stage278_dashboard .chtio_avatar img,
.chtio_stage278_admin .chtio_avatar img,
.chtio_stage278_admin .admin-user-avatar img,
.chtio_stage278_admin .admin-user-modal-avatar img,
.chtio_stage278_admin .chtio_stage277_operator_avatar img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.chtio_stage278_admin .admin-user-avatar-upload {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr) auto;
    align-items: center;
    gap: 14px;
    padding: 14px;
    border: 1px solid var(--chtio_278_border);
    border-radius: 5px;
    background: var(--chtio_278_surface_2);
}

.chtio_stage278_admin .admin-user-avatar-preview {
    display: grid;
    place-items: center;
    width: 70px;
    height: 70px;
    overflow: hidden;
    border: 1px solid var(--chtio_278_border_2);
    border-radius: 5px;
    background: #fff;
    color: var(--chtio_278_muted);
    font-size: 25px;
    font-weight: 600;
}

.chtio_stage278_admin .admin-user-avatar-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.chtio_stage278_admin .admin-user-avatar-copy {
    display: grid;
    gap: 5px;
    min-width: 0;
}

.chtio_stage278_admin .admin-user-avatar-copy small {
    color: var(--chtio_278_muted);
    line-height: 1.5;
}

.chtio_stage278_admin .admin-user-avatar-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.chtio_stage278_admin .admin-user-avatar-actions label {
    cursor: pointer;
}

/* Backdrop click is intentionally inert; only explicit close controls and Escape close modals. */
.chtio_stage278_dashboard :where(.modal-backdrop, [class*="modal-backdrop"]),
.chtio_stage278_admin :where(.modal-backdrop, [class*="modal-backdrop"]) {
    cursor: default;
}

@media (max-width: 1080px) {
    .chtio_stage278_auth .chtio_auth_shell {
        grid-template-columns: 1fr;
    }

    .chtio_stage278_auth .chtio_auth_showcase {
        display: none;
    }

    .chtio_stage278_auth .chtio_auth_panel {
        min-height: 100dvh;
        padding: 18px clamp(16px, 5vw, 48px) 34px;
    }

    .chtio_stage278_auth .chtio_auth_panel > header > a img {
        display: block;
        width: 150px;
    }

    .chtio_stage278_auth .chtio_auth_panel_inner {
        padding-top: 26px;
    }
}

@media (max-width: 680px) {
    .chtio_stage278_auth .chtio_auth_panel {
        padding: 14px 12px 28px;
    }

    .chtio_stage278_auth .auth-card {
        padding: 21px 17px;
    }

    .chtio_stage278_auth .auth-card-head h1,
    .chtio_stage278_auth .auth-simple-head h1 {
        font-size: 32px;
    }

    .chtio_stage278_auth .activation-step {
        grid-template-columns: 36px minmax(0, 1fr);
        gap: 10px;
        padding: 14px;
    }

    .chtio_stage278_auth .activation-step-number {
        width: 34px;
        height: 34px;
    }

    .chtio_stage278_auth .activation-step-body > header {
        display: grid;
    }

    .chtio_stage278_auth .activation-step-body > header > span {
        justify-self: start;
    }

    .chtio_stage278_auth .activation-code-form {
        grid-template-columns: 1fr;
    }

    .chtio_stage278_auth .activation-code-form .button {
        width: 100%;
    }

    .chtio_stage278_admin .admin-user-avatar-upload {
        grid-template-columns: 60px minmax(0, 1fr);
    }

    .chtio_stage278_admin .admin-user-avatar-preview {
        width: 58px;
        height: 58px;
    }

    .chtio_stage278_admin .admin-user-avatar-actions {
        grid-column: 1 / -1;
        justify-content: stretch;
    }

    .chtio_stage278_admin .admin-user-avatar-actions .button,
    .chtio_stage278_admin .admin-user-avatar-actions label {
        flex: 1 1 140px;
        text-align: center;
    }

    .chtio_async_toast {
        top: 68px;
        right: 10px;
        left: 10px;
        max-width: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .chtio_stage278_auth *,
    .chtio_stage278_auth *::before,
    .chtio_stage278_auth *::after,
    .chtio_async_toast {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
}

/* Admin conversation details shown in the supplied screenshot. */
.chtio_stage278_admin .chtio_stage278_conversation_page {
    display: grid;
    gap: 16px;
}

.chtio_stage278_admin .chtio_stage278_conversation_overview {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(340px, .8fr);
    gap: 16px;
    align-items: start;
}

.chtio_stage278_admin .chtio_stage278_conversation_details,
.chtio_stage278_admin .chtio_stage278_assign_operator,
.chtio_stage278_admin .chtio_stage278_messages_card {
    min-width: 0;
    padding: 22px;
}

.chtio_stage278_admin .chtio_stage278_detail_grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin: 0;
}

.chtio_stage278_admin .chtio_stage278_detail_grid > div {
    min-width: 0;
    padding: 13px;
    border: 1px solid var(--chtio_278_border);
    border-radius: 5px;
    background: var(--chtio_278_surface_2);
}

.chtio_stage278_admin .chtio_stage278_detail_grid dt {
    margin-bottom: 6px;
    color: var(--chtio_278_muted);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: .05em;
    text-transform: uppercase;
}

.chtio_stage278_admin .chtio_stage278_detail_grid dd {
    min-width: 0;
    margin: 0;
    color: var(--chtio_278_text);
    font-weight: 600;
    overflow-wrap: anywhere;
}

.chtio_stage278_admin .chtio_stage278_assign_form {
    display: grid;
    gap: 12px;
}

.chtio_stage278_admin .chtio_stage278_assign_form label {
    display: grid;
    gap: 7px;
    color: var(--chtio_278_text);
    font-size: 12px;
    font-weight: 600;
}

.chtio_stage278_admin .chtio_stage278_assign_form .button {
    justify-self: start;
}

.chtio_stage278_admin .chtio_stage278_message_count {
    display: grid;
    place-items: center;
    min-width: 38px;
    height: 34px;
    padding: 0 10px;
    border: 1px solid var(--chtio_278_border);
    border-radius: 5px;
    background: var(--chtio_278_surface_2);
    font-weight: 600;
}

.chtio_stage278_admin .chtio_stage278_message_list {
    display: grid;
    gap: 10px;
}

.chtio_stage278_admin .chtio_stage278_message {
    min-width: 0;
    padding: 14px 15px;
    border: 1px solid var(--chtio_278_border);
    border-left: 4px solid #9097a5;
    border-radius: 5px;
    background: var(--chtio_278_surface_2);
}

.chtio_stage278_admin .chtio_stage278_message.is-visitor { border-left-color: var(--chtio_278_blue); }
.chtio_stage278_admin .chtio_stage278_message.is-ai { border-left-color: #8b5cf6; }
.chtio_stage278_admin .chtio_stage278_message.is-operator { border-left-color: var(--chtio_278_green); }
.chtio_stage278_admin .chtio_stage278_message.is-telegram { border-left-color: #229ed9; }

.chtio_stage278_admin .chtio_stage278_message > header {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto auto;
    align-items: center;
    gap: 8px 12px;
    min-width: 0;
    color: var(--chtio_278_muted);
    font-size: 11px;
}

.chtio_stage278_admin .chtio_stage278_sender_type,
.chtio_stage278_admin .chtio_stage278_message_status {
    padding: 4px 7px;
    border: 1px solid var(--chtio_278_border);
    border-radius: 4px;
    background: #fff;
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
}

.chtio_stage278_admin .chtio_stage278_message > header strong {
    min-width: 0;
    color: var(--chtio_278_text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chtio_stage278_admin .chtio_stage278_message_body {
    margin-top: 10px;
    color: var(--chtio_278_text);
    line-height: 1.58;
    overflow-wrap: anywhere;
}

@media (max-width: 900px) {
    .chtio_stage278_admin .chtio_stage278_conversation_overview {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .chtio_stage278_admin .chtio_stage278_detail_grid {
        grid-template-columns: 1fr;
    }

    .chtio_stage278_admin .chtio_stage278_message > header {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .chtio_stage278_admin .chtio_stage278_message > header time,
    .chtio_stage278_admin .chtio_stage278_message_status {
        grid-column: 2;
        justify-self: start;
    }
}

/* Registration trust flow */
.chtio_stage278_auth .register-trust-flow {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin: 20px 0;
}

.chtio_stage278_auth .register-trust-flow > span {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    min-height: 40px;
    padding: 8px 10px;
    border: 1px solid var(--chtio_278_border);
    border-radius: 5px;
    background: var(--chtio_278_surface_2);
    color: var(--chtio_278_text_2);
    font-size: 11px;
    font-weight: 600;
    line-height: 1.3;
}

.chtio_stage278_auth .register-trust-flow > span:first-child {
    border-color: rgba(37, 112, 221, .3);
    background: rgba(37, 112, 221, .055);
    color: var(--chtio_278_text);
}

.chtio_stage278_auth .register-trust-flow i {
    display: grid;
    flex: 0 0 auto;
    place-items: center;
    width: 23px;
    height: 23px;
    border: 1px solid var(--chtio_278_border_2);
    border-radius: 5px;
    background: #fff;
    color: var(--chtio_278_text);
    font-size: 10px;
    font-style: normal;
    font-weight: 600;
}

.chtio_stage278_auth .register-draft-saved {
    display: grid;
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 10px;
    align-items: center;
    margin: 18px 0 0;
    padding: 12px;
    border: 1px solid rgba(21, 167, 103, .28);
    border-radius: 5px;
    background: rgba(21, 167, 103, .06);
}

.chtio_stage278_auth .register-draft-saved > span {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 5px;
    background: rgba(21, 167, 103, .12);
    color: #0f8e57;
    font-weight: 600;
}

.chtio_stage278_auth .register-draft-saved strong,
.chtio_stage278_auth .register-draft-saved small {
    display: block;
}

.chtio_stage278_auth .register-draft-saved small {
    margin-top: 3px;
    color: var(--chtio_278_text_2);
}

@media (max-width: 520px) {
    .chtio_stage278_auth .register-trust-flow {
        grid-template-columns: 1fr;
    }
}