:root {
  --azul: #2563EB;
  --azul-escuro: #1D4ED8;
  --verde: #16A34A;
  --vermelho: #DC2626;
  --dourado: #B8860B;
  --cinza: #374151;
  --cinza-claro: #6B7280;
  --fundo: #F3F4F6;
  --fundo-card: #FFFFFF;
  --fundo-escuro: #111827;
  --borda: #E5E7EB;
  --raio: 14px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  background: var(--fundo);
  color: var(--cinza);
}
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }

/* ---------- Tela de login ---------- */
.tela-login {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--azul-escuro), var(--fundo-escuro));
  padding: 20px;
}
.cartao-login {
  background: var(--fundo-card);
  border-radius: var(--raio);
  padding: 36px 32px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
  text-align: center;
}
.cartao-login img { width: 72px; height: 72px; margin-bottom: 12px; }
.cartao-login h1 { font-size: 20px; margin: 0 0 4px; color: var(--fundo-escuro); }
.cartao-login p.subtitulo { color: var(--cinza-claro); font-size: 14px; margin: 0 0 24px; }
.campo { text-align: left; margin-bottom: 14px; }
.campo label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--cinza); }
.campo input {
  width: 100%; padding: 11px 13px; border-radius: 10px; border: 1.5px solid var(--borda);
  font-size: 15px; outline: none; transition: border-color .15s;
}
.campo input:focus { border-color: var(--azul); }
.botao-primario {
  width: 100%; padding: 12px; border: none; border-radius: 10px;
  background: var(--azul); color: #fff; font-weight: 600; font-size: 15px; margin-top: 8px;
}
.botao-primario:hover { background: var(--azul-escuro); }
.botao-primario:disabled { opacity: .6; cursor: default; }
.erro-msg { color: var(--vermelho); font-size: 13px; margin-top: 10px; min-height: 16px; }

/* ---------- Layout do painel ---------- */
.app { display: flex; height: 100vh; overflow: hidden; }

.sidebar {
  width: 240px; background: var(--fundo-escuro); color: #fff; flex-shrink: 0;
  display: flex; flex-direction: column; transition: transform .2s;
}
.sidebar .marca { display: flex; align-items: center; gap: 10px; padding: 18px 16px; border-bottom: 1px solid rgba(255,255,255,.1); }
.sidebar .marca img { width: 34px; height: 34px; }
.sidebar .marca span { font-weight: 700; font-size: 14px; line-height: 1.2; }
.sidebar nav { flex: 1; overflow-y: auto; padding: 10px; }
.sidebar nav button {
  width: 100%; text-align: left; background: none; border: none; color: #cbd5e1;
  padding: 11px 12px; border-radius: 9px; font-size: 14px; margin-bottom: 2px;
  display: flex; align-items: center; gap: 10px;
}
.sidebar nav button:hover { background: rgba(255,255,255,.06); color: #fff; }
.sidebar nav button.ativo { background: var(--azul); color: #fff; }
.sidebar nav button .badge {
  margin-left: auto; background: var(--vermelho); color: #fff; font-size: 11px;
  border-radius: 999px; padding: 1px 7px;
}
.sidebar .rodape { padding: 12px; border-top: 1px solid rgba(255,255,255,.1); font-size: 12px; color: #9CA3AF; }
.sidebar .rodape button { background: none; border: none; color: #cbd5e1; font-size: 13px; padding: 6px 0; }

.conteudo { flex: 1; overflow-y: auto; padding: 24px 28px; }
.topo-mobile { display: none; }

.cabecalho-pagina { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; flex-wrap: wrap; gap: 10px; }
.cabecalho-pagina h2 { margin: 0; font-size: 20px; color: var(--fundo-escuro); }

.card {
  background: var(--fundo-card); border-radius: var(--raio); padding: 18px 20px;
  border: 1px solid var(--borda); margin-bottom: 16px;
}
.grade-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 20px; }
.cartao-estatistica { background: var(--fundo-card); border-radius: var(--raio); padding: 16px 18px; border: 1px solid var(--borda); }
.cartao-estatistica .numero { font-size: 26px; font-weight: 700; color: var(--azul); }
.cartao-estatistica .rotulo { font-size: 13px; color: var(--cinza-claro); margin-top: 2px; }

.botao { padding: 9px 16px; border-radius: 9px; border: 1.5px solid var(--borda); background: #fff; font-size: 14px; font-weight: 600; color: var(--cinza); }
.botao.primario { background: var(--azul); color: #fff; border-color: var(--azul); }
.botao.primario:hover { background: var(--azul-escuro); }
.botao.verde { background: var(--verde); color: #fff; border-color: var(--verde); }
.botao.vermelho { background: var(--vermelho); color: #fff; border-color: var(--vermelho); }
.botao.pequeno { padding: 5px 10px; font-size: 12px; }
.botao:disabled { opacity: .5; }

.tag { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 11px; font-weight: 700; }
.tag.ia { background: #DBEAFE; color: var(--azul-escuro); }
.tag.aguardando_tecnico { background: #FEF3C7; color: #92400E; }
.tag.tecnico { background: #DCFCE7; color: #166534; }
.tag.encerrada { background: #F3F4F6; color: var(--cinza-claro); }

/* ---------- Conversas ---------- */
.tela-conversas { display: flex; height: calc(100vh - 48px); border: 1px solid var(--borda); border-radius: var(--raio); overflow: hidden; background: #fff; }
.lista-conversas { width: 320px; border-right: 1px solid var(--borda); overflow-y: auto; flex-shrink: 0; }
.item-conversa { padding: 12px 14px; border-bottom: 1px solid var(--borda); cursor: pointer; }
.item-conversa:hover { background: #F9FAFB; }
.item-conversa.selecionada { background: #EFF6FF; }
.item-conversa .nome { font-weight: 600; font-size: 14px; display: flex; justify-content: space-between; }
.item-conversa .prevista { font-size: 12px; color: var(--cinza-claro); margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ponto-nao-lida { width: 9px; height: 9px; border-radius: 50%; background: var(--verde); display: inline-block; }

.painel-chat { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.chat-cabecalho { padding: 14px 18px; border-bottom: 1px solid var(--borda); display: flex; justify-content: space-between; align-items: center; }
.chat-mensagens { flex: 1; overflow-y: auto; padding: 18px; background: #F9FAFB; display: flex; flex-direction: column; gap: 8px; }
.balao { max-width: 68%; padding: 9px 13px; border-radius: 12px; font-size: 14px; line-height: 1.4; }
.balao.cliente { align-self: flex-start; background: #fff; border: 1px solid var(--borda); border-bottom-left-radius: 3px; }
.balao.ia { align-self: flex-end; background: #DBEAFE; border-bottom-right-radius: 3px; }
.balao.tecnico { align-self: flex-end; background: var(--verde); color: #fff; border-bottom-right-radius: 3px; }
.balao .hora { font-size: 10px; opacity: .6; margin-top: 4px; }
.chat-rodape { padding: 12px; border-top: 1px solid var(--borda); display: flex; gap: 8px; }
.chat-rodape textarea { flex: 1; resize: none; border: 1.5px solid var(--borda); border-radius: 10px; padding: 10px; font-size: 14px; height: 42px; }
.aviso-vazio { display: flex; align-items: center; justify-content: center; height: 100%; color: var(--cinza-claro); font-size: 14px; }

/* ---------- WhatsApp / QR ---------- */
.painel-qr { text-align: center; padding: 30px; }
.painel-qr img { width: 240px; height: 240px; border: 8px solid #fff; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,.1); }
.status-ponto { width: 10px; height: 10px; border-radius: 50%; display: inline-block; margin-right: 6px; }
.status-ponto.conectado { background: var(--verde); }
.status-ponto.desconectado { background: var(--cinza-claro); }
.status-ponto.erro { background: var(--vermelho); }
.status-ponto.aguardando_qr { background: var(--dourado); }

/* ---------- Formulários gerais ---------- */
.form-linha { margin-bottom: 14px; }
.form-linha label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.form-linha input, .form-linha textarea, .form-linha select {
  width: 100%; padding: 9px 12px; border-radius: 9px; border: 1.5px solid var(--borda); font-size: 14px;
}
.form-linha textarea { min-height: 80px; resize: vertical; }
.form-duas-colunas { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.tabela { width: 100%; border-collapse: collapse; }
.tabela th, .tabela td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--borda); font-size: 13px; }
.tabela th { color: var(--cinza-claro); font-weight: 600; }

.toast {
  position: fixed; bottom: 20px; right: 20px; background: var(--fundo-escuro); color: #fff;
  padding: 12px 18px; border-radius: 10px; font-size: 14px; box-shadow: 0 8px 24px rgba(0,0,0,.25); z-index: 999;
}

/* ---------- Responsivo ---------- */
@media (max-width: 880px) {
  .sidebar { position: fixed; z-index: 50; height: 100vh; transform: translateX(-100%); }
  .sidebar.aberta { transform: translateX(0); }
  .topo-mobile {
    display: flex; align-items: center; gap: 10px; padding: 12px 14px; background: var(--fundo-escuro); color: #fff;
  }
  .topo-mobile button { background: none; border: none; color: #fff; font-size: 20px; }
  .conteudo { padding: 16px; }
  .tela-conversas { height: calc(100vh - 108px); flex-direction: row; }
  .lista-conversas { width: 100%; }
  .lista-conversas.escondida-mobile { display: none; }
  .painel-chat.escondida-mobile { display: none; }
  .form-duas-colunas { grid-template-columns: 1fr; }
  .balao { max-width: 85%; }
}