/* =========================================================================================================
   UI.Atendimento — painel de atendimento das conversas de WhatsApp com os bots.

   O vocabulario visual acompanha os demais paineis internos (fundo claro, cartoes brancos, tipografia Inter,
   cantos de 4px). As classes "at-*" sao todas deste app. O layout e de tres colunas fixas em altura total da
   janela: lista de conversas, conversa aberta e detalhes — cada uma com a propria rolagem, para a pagina nunca
   rolar inteira.
   ========================================================================================================= */

:root {
    --at-bg: #f4f4f4;
    --at-surface: #ffffff;
    --at-text: #111827;
    --at-muted: #8b929c;
    --at-line: #e6e6e6;
    --at-soft-line: #eeeeee;
    --at-rail-bg: #171719;
    --at-blue: #303f92;
    --at-blue-soft: #eef1fb;
    --at-green: #168421;
    --at-green-soft: #e8f5e9;
    --at-amber: #b45309;
    --at-amber-soft: #fef3e2;
    --at-danger: #ef3f35;
    --at-radius: 4px;
    --at-rail-width: 56px;
    --at-lista-width: 340px;
    --at-detalhes-width: 300px;
}

html,
body {
    height: 100%;
    margin: 0;
    overflow: hidden;
}

body {
    background: var(--at-bg);
    color: var(--at-text);
    font-family: 'Inter', Arial, Helvetica, sans-serif;
    font-size: 14px;
    line-height: 1.45;
}

/* ===================== Casca ===================== */

.at-shell {
    display: flex;
    height: 100vh;
}

.at-rail {
    width: var(--at-rail-width);
    flex: 0 0 var(--at-rail-width);
    background: var(--at-rail-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 0;
    gap: 8px;
}

.at-rail__marca {
    width: 36px;
    height: 36px;
    border-radius: var(--at-radius);
    display: grid;
    place-items: center;
    background: var(--at-blue);
    color: #fff;
    font-size: 18px;
}

.at-rail__nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: 8px;
    width: 100%;
    align-items: center;
}

.at-rail__rodape {
    margin-top: auto;
}

.at-rail__item {
    width: 36px;
    height: 36px;
    border: 0;
    background: transparent;
    color: #9ca3af;
    border-radius: var(--at-radius);
    display: grid;
    place-items: center;
    font-size: 17px;
    text-decoration: none;
    cursor: pointer;
}

.at-rail__item:hover {
    background: rgba(255, 255, 255, .08);
    color: #fff;
}

.at-rail__item.active {
    background: rgba(255, 255, 255, .14);
    color: #fff;
}

.at-conteudo {
    flex: 1;
    min-width: 0;
    height: 100vh;
}

/* ===================== Grade de tres colunas ===================== */

.at-grid {
    display: grid;
    grid-template-columns: var(--at-lista-width) minmax(0, 1fr) var(--at-detalhes-width);
    height: 100vh;
    background: var(--at-bg);
}

/* ===================== Coluna 1: lista ===================== */

.at-lista {
    background: var(--at-surface);
    border-right: 1px solid var(--at-line);
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.at-lista__topo {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
    padding: 14px 16px 10px;
    border-bottom: 1px solid var(--at-soft-line);
}

.at-lista__topo h1 {
    font-size: 16px;
    font-weight: 600;
    margin: 0;
}

.at-lista__topo p {
    margin: 2px 0 0;
    font-size: 12px;
    color: var(--at-muted);
}

.at-icone-btn {
    border: 1px solid var(--at-line);
    background: #fff;
    border-radius: var(--at-radius);
    width: 30px;
    height: 30px;
    display: grid;
    place-items: center;
    color: var(--at-muted);
    cursor: pointer;
}

.at-icone-btn:hover {
    color: var(--at-text);
    border-color: #d5d5d5;
}

.at-abas {
    display: flex;
    gap: 2px;
    padding: 8px 10px 0;
    border-bottom: 1px solid var(--at-soft-line);
}

.at-aba {
    flex: 1;
    border: 0;
    background: transparent;
    padding: 7px 4px 9px;
    font-size: 12.5px;
    font-weight: 500;
    color: var(--at-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.at-aba:hover {
    color: var(--at-text);
}

.at-aba--ativa {
    color: var(--at-blue);
    border-bottom-color: var(--at-blue);
}

.at-aba__contador {
    background: var(--at-soft-line);
    color: #4b5563;
    border-radius: 10px;
    padding: 0 6px;
    font-size: 11px;
    font-weight: 600;
    min-width: 18px;
    text-align: center;
}

.at-aba__contador--alerta {
    background: var(--at-danger);
    color: #fff;
}

.at-filtros {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 10px 12px;
    border-bottom: 1px solid var(--at-soft-line);
}

.at-busca {
    position: relative;
}

.at-busca i {
    position: absolute;
    left: 9px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--at-muted);
    font-size: 13px;
}

.at-busca input,
.at-select {
    width: 100%;
    border: 1px solid var(--at-line);
    border-radius: var(--at-radius);
    padding: 6px 10px;
    font-size: 13px;
    background: #fff;
    color: var(--at-text);
}

.at-busca input {
    padding-left: 28px;
}

.at-busca input:focus,
.at-select:focus {
    outline: none;
    border-color: var(--at-blue);
}

.at-lista__itens {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.at-item {
    width: 100%;
    display: flex;
    gap: 10px;
    align-items: flex-start;
    text-align: left;
    border: 0;
    border-bottom: 1px solid var(--at-soft-line);
    background: #fff;
    padding: 11px 12px;
    cursor: pointer;
}

.at-item:hover {
    background: #fafafa;
}

.at-item--ativo {
    background: var(--at-blue-soft);
}

.at-item--ativo:hover {
    background: var(--at-blue-soft);
}

.at-item__corpo {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.at-item__topo {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 6px;
}

.at-item__topo strong {
    font-size: 13.5px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.at-item__hora {
    font-size: 11px;
    color: var(--at-muted);
    white-space: nowrap;
}

.at-item__origem {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.at-item__numero {
    font-size: 11px;
    color: var(--at-muted);
}

.at-item__texto {
    font-size: 12.5px;
    color: #6b7280;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.at-item__rodape {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    margin-top: 2px;
}

.at-pendente {
    background: var(--at-danger);
    color: #fff;
    border-radius: 10px;
    min-width: 18px;
    padding: 0 6px;
    font-size: 11px;
    font-weight: 600;
    text-align: center;
}

/* ===================== Etiquetas ===================== */

.at-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    border: 1px solid var(--at-line);
    border-radius: 10px;
    padding: 1px 7px;
    font-size: 11px;
    font-weight: 500;
    white-space: nowrap;
}

.at-tag--origem {
    background: #fff;
    font-weight: 600;
}

.at-tag--bot {
    background: var(--at-blue-soft);
    border-color: #d7ddf5;
    color: var(--at-blue);
}

.at-tag--fila {
    background: #fdeaea;
    border-color: #f7cfcd;
    color: var(--at-danger);
}

/* Fila humana definida pelo assunto (Suporte/Vendas) — ao lado da tag de origem no item da lista. */
.at-tag--setor {
    background: #fef6e7;
    border-color: #f2ddb3;
    color: #9a6b0f;
    font-weight: 600;
}

.at-tag--humano {
    background: var(--at-green-soft);
    border-color: #cbe7cd;
    color: var(--at-green);
}

.at-tag--encerrada {
    background: #f3f4f6;
    border-color: #e5e7eb;
    color: #6b7280;
}

/* ===================== Avatares ===================== */

.at-avatar {
    width: 36px;
    height: 36px;
    flex: 0 0 36px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 12.5px;
    font-weight: 600;
    background: #6b7280;
}

.at-avatar--rail {
    width: 30px;
    height: 30px;
    flex-basis: 30px;
    font-size: 11px;
    background: var(--at-blue);
}

/* ===================== Coluna 2: conversa ===================== */

.at-conversa {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
    background: var(--at-bg);
}

.at-conversa__topo {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 16px;
    background: var(--at-surface);
    border-bottom: 1px solid var(--at-line);
    flex-wrap: wrap;
}

.at-conversa__quem {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.at-conversa__quem h2 {
    font-size: 15px;
    font-weight: 600;
    margin: 0;
}

.at-conversa__sub {
    font-size: 12px;
    color: var(--at-muted);
    display: flex;
    align-items: center;
    gap: 5px;
    flex-wrap: wrap;
}

.at-conversa__sub strong {
    color: var(--at-text);
    font-weight: 600;
}

.at-conversa__acoes {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.at-faixa {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 7px 16px;
    font-size: 12.5px;
    border-bottom: 1px solid var(--at-line);
}

.at-faixa--bot {
    background: var(--at-blue-soft);
    color: var(--at-blue);
}

.at-faixa--alerta {
    background: #fdeaea;
    color: var(--at-danger);
}

.at-faixa--humano {
    background: var(--at-green-soft);
    color: var(--at-green);
}

.at-faixa--neutra {
    background: #f3f4f6;
    color: #6b7280;
}

.at-mensagens {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.at-dia {
    text-align: center;
    margin: 8px 0 4px;
}

.at-dia span {
    background: #e9eaec;
    color: #6b7280;
    font-size: 11px;
    font-weight: 500;
    border-radius: 10px;
    padding: 2px 10px;
}

.at-bolha-linha {
    display: flex;
}

.at-bolha-linha--entrada {
    justify-content: flex-start;
}

.at-bolha-linha--saida {
    justify-content: flex-end;
}

.at-bolha {
    max-width: min(560px, 72%);
    border-radius: 10px;
    padding: 8px 11px 5px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, .06);
}

.at-bolha--entrada {
    background: #fff;
    border: 1px solid var(--at-line);
    border-bottom-left-radius: 2px;
}

.at-bolha--bot {
    background: var(--at-blue-soft);
    border: 1px solid #dfe4f7;
    border-bottom-right-radius: 2px;
}

.at-bolha--humano {
    background: var(--at-green-soft);
    border: 1px solid #cfe8d2;
    border-bottom-right-radius: 2px;
}

.at-bolha__autor {
    font-size: 11px;
    font-weight: 600;
    opacity: .75;
    margin-bottom: 2px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.at-bolha__texto {
    font-size: 13.5px;
    white-space: pre-wrap;
    word-break: break-word;
}

.at-bolha__meta {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
    font-size: 10.5px;
    color: var(--at-muted);
    margin-top: 2px;
}

.at-erro {
    color: var(--at-danger);
}

.at-nota {
    align-self: center;
    background: #fff8e1;
    border: 1px solid #f3e2b3;
    color: #8a6d1f;
    border-radius: 10px;
    padding: 4px 11px;
    font-size: 12px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    max-width: 80%;
}

.at-nota__hora {
    opacity: .7;
    font-size: 10.5px;
}

.at-editor {
    background: var(--at-surface);
    border-top: 1px solid var(--at-line);
    padding: 10px 16px;
    display: flex;
    gap: 8px;
    align-items: flex-end;
}

.at-editor textarea {
    flex: 1;
    border: 1px solid var(--at-line);
    border-radius: var(--at-radius);
    padding: 8px 10px;
    font-size: 13.5px;
    font-family: inherit;
    resize: none;
}

.at-editor textarea:focus {
    outline: none;
    border-color: var(--at-blue);
}

.at-editor__bloqueado {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    background: #f7f7f8;
    border: 1px dashed var(--at-line);
    border-radius: var(--at-radius);
    padding: 10px 12px;
    font-size: 12.5px;
    color: #6b7280;
}

/* ===================== Coluna 3: detalhes ===================== */

.at-detalhes {
    background: var(--at-surface);
    border-left: 1px solid var(--at-line);
    overflow-y: auto;
    min-height: 0;
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.at-detalhes__vazio {
    color: var(--at-muted);
    font-size: 12.5px;
    text-align: center;
    padding-top: 30px;
}

.at-painel {
    border: 1px solid var(--at-soft-line);
    border-radius: var(--at-radius);
    padding: 11px 12px;
}

.at-painel h3 {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--at-muted);
    margin: 0 0 8px;
}

.at-numeros {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    text-align: center;
}

.at-numeros strong {
    display: block;
    font-size: 15px;
    font-weight: 600;
}

.at-numeros span {
    font-size: 10.5px;
    color: var(--at-muted);
}

.at-dados {
    margin: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 7px;
}

.at-dados dt {
    font-size: 11px;
    color: var(--at-muted);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 5px;
}

.at-dados dd {
    margin: 0;
    font-size: 12.5px;
    word-break: break-word;
}

.at-mono {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 11px;
}

.at-muted {
    color: var(--at-muted);
}

/* ===================== Botoes ===================== */

.at-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    border-radius: var(--at-radius);
    border: 1px solid var(--at-line);
    background: #fff;
    color: var(--at-text);
    padding: 6px 11px;
    font-size: 12.5px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
}

.at-btn:hover:not(:disabled) {
    border-color: #d0d0d0;
    background: #fafafa;
}

.at-btn:disabled {
    opacity: .55;
    cursor: not-allowed;
}

.at-btn--primario {
    background: var(--at-blue);
    border-color: var(--at-blue);
    color: #fff;
}

.at-btn--primario:hover:not(:disabled) {
    background: #27347c;
    border-color: #27347c;
}

.at-btn--alerta {
    background: var(--at-amber-soft);
    border-color: #f0d6a8;
    color: var(--at-amber);
}

.at-btn--alerta:hover:not(:disabled) {
    background: #fdeacd;
}

.at-btn--neutro {
    background: #fff;
}

.at-btn--enviar {
    height: 38px;
}

/* ===================== Dropdown ===================== */

.at-dropdown {
    border: 1px solid var(--at-line);
    border-radius: var(--at-radius);
    box-shadow: 0 4px 14px rgba(15, 23, 42, .12);
    font-size: 13px;
    padding: 4px;
}

.at-dropdown--largo {
    min-width: 220px;
    max-height: 320px;
    overflow-y: auto;
}

.at-dropdown__titulo {
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--at-muted);
    padding: 6px 10px 4px;
    font-weight: 600;
}

.at-dropdown__marca {
    color: var(--at-green);
    margin-left: 6px;
}

.at-dropdown .dropdown-item {
    border-radius: var(--at-radius);
    font-size: 13px;
    padding: 6px 10px;
}

/* ===================== Estados ===================== */

.at-vazio {
    text-align: center;
    color: var(--at-muted);
    padding: 24px 16px;
}

.at-vazio i {
    font-size: 26px;
    display: block;
    margin-bottom: 6px;
    opacity: .5;
}

.at-vazio--lista {
    padding-top: 40px;
}

.at-vazio--grande {
    margin: auto;
    padding-top: 0;
}

.at-vazio--grande i {
    font-size: 44px;
}

.at-vazio--grande h2 {
    font-size: 16px;
    font-weight: 600;
    color: var(--at-text);
    margin: 6px 0 2px;
}

.at-vazio--pagina {
    max-width: 460px;
    margin: 80px auto;
    background: #fff;
    border: 1px solid var(--at-line);
    border-radius: var(--at-radius);
    padding: 28px;
}

.at-vazio--pagina h2 {
    font-size: 17px;
    color: var(--at-text);
    margin: 8px 0 4px;
}

.at-aviso {
    display: flex;
    align-items: center;
    gap: 7px;
    border-radius: var(--at-radius);
    padding: 8px 11px;
    font-size: 12.5px;
}

.at-aviso--erro {
    background: #fdeaea;
    border: 1px solid #f7cfcd;
    color: #a52822;
}

.at-aviso--inline {
    margin: 8px 12px 0;
}

.at-carregando {
    text-align: center;
    color: var(--at-muted);
    padding: 36px 12px;
    font-size: 12.5px;
}

.at-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--at-line);
    border-top-color: var(--at-blue);
    border-radius: 50%;
    animation: at-girar .7s linear infinite;
    margin-bottom: 8px;
}

.at-spinner.grande {
    width: 26px;
    height: 26px;
    border-width: 3px;
}

@keyframes at-girar {
    to {
        transform: rotate(360deg);
    }
}

/* ===================== Login ===================== */

.at-login-bg {
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: linear-gradient(160deg, #1f2937 0%, #111827 100%);
}

.at-login-main {
    flex: 1;
    display: grid;
    place-items: center;
    padding: 20px;
}

.at-login-rodape {
    text-align: center;
    color: #9ca3af;
    font-size: 12px;
    padding: 14px;
}

.at-login-card {
    background: #fff;
    border-radius: 8px;
    padding: 28px 26px;
    width: min(380px, 100%);
    box-shadow: 0 12px 40px rgba(0, 0, 0, .28);
}

.at-login-brand {
    font-size: 19px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--at-blue);
}

.at-login-sub {
    color: var(--at-muted);
    font-size: 12.5px;
    margin: 2px 0 18px;
}

.at-login-field {
    margin-bottom: 12px;
}

.at-login-field label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 4px;
}

.at-login-field input {
    width: 100%;
    border: 1px solid var(--at-line);
    border-radius: var(--at-radius);
    padding: 8px 10px;
    font-size: 13.5px;
}

.at-login-field input:focus {
    outline: none;
    border-color: var(--at-blue);
}

.at-login-btn {
    width: 100%;
    border: 0;
    background: var(--at-blue);
    color: #fff;
    border-radius: var(--at-radius);
    padding: 9px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 6px;
}

.at-login-btn:hover {
    background: #27347c;
}

.at-help {
    font-size: 11.5px;
}

/* ===================== Erro do Blazor ===================== */

#blazor-error-ui {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #fff3cd;
    border-top: 1px solid #ffecb5;
    padding: 10px 16px;
    font-size: 13px;
    z-index: 1200;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    float: right;
}

/* ===================== Telas menores ===================== */

@media (max-width: 1200px) {
    .at-grid {
        grid-template-columns: var(--at-lista-width) minmax(0, 1fr);
    }

    .at-detalhes {
        display: none;
    }
}

@media (max-width: 860px) {
    .at-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .at-lista {
        display: none;
    }
}