:root {
  --cor: #ff4f2b;
  --fundo: #17131c;
  --fundo2: #201a27;
  --fundo3: #2b2433;
  --texto: #f3eff6;
  --suave: #a79fb0;
  --borda: rgba(255, 255, 255, 0.09);
  --verde: #22c55e;
  --ambar: #f59e0b;
  --vermelho: #ef4444;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; overflow: hidden; }
/* Texto do cliente (URL, e-mail, caminho) pode vir sem espaço: quebra em
   qualquer ponto em vez de alargar a tela. */
.msg, .info, .quem, .item, .aviso, .toast { overflow-wrap: anywhere; }
body {
  background: var(--fundo);
  color: var(--texto);
  font: 15px/1.45 ui-sans-serif, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
[hidden] { display: none !important; }
button { font: inherit; color: inherit; cursor: pointer; }
input, textarea {
  font: inherit; color: var(--texto); background: var(--fundo3);
  border: 1px solid var(--borda); border-radius: 12px; padding: 11px 13px; width: 100%; outline: none;
}
input:focus, textarea:focus { border-color: var(--cor); }

.btn {
  background: var(--cor); color: #fff; border: 0; border-radius: 12px;
  padding: 11px 16px; font-weight: 700;
}
.btn.pequeno { padding: 7px 12px; font-size: 13.5px; border-radius: 10px; white-space: nowrap; flex-shrink: 0; }
.btn.secundario { background: var(--fundo3); color: var(--texto); }
.btn:disabled { opacity: .55; }
.icone {
  background: transparent; border: 0; width: 40px; height: 40px; border-radius: 12px;
  font-size: 18px; display: grid; place-items: center;
}
.icone:hover { background: var(--fundo3); }

/* Login */
.login { min-height: 100%; display: grid; place-items: center; padding: 24px; }
.cartao {
  width: min(380px, 100%); background: var(--fundo2); border: 1px solid var(--borda);
  border-radius: 22px; padding: 26px; display: flex; flex-direction: column; gap: 14px;
}
.cartao h1 { margin: 0 0 4px; font-size: 21px; }
.cartao label { display: flex; flex-direction: column; gap: 6px; font-size: 13.5px; color: var(--suave); }
.logo { border-radius: 14px; }
.erro { color: var(--vermelho); margin: 0; font-size: 14px; }
.instalar { display: flex; flex-direction: column; gap: 8px; }
.aviso.instalar { flex-direction: row; background: rgba(255, 79, 43, .1); border-color: rgba(255, 79, 43, .3); }
.dica-instalar { margin: 0; font-size: 13px; color: var(--suave); line-height: 1.5; }
.dica-instalar:empty { display: none; }

/* Central */
/* 100dvh acompanha a barra do navegador e o teclado do celular. minmax(0, …)
   impede que um texto comprido estique a coluna além da tela. */
.central {
  height: 100vh; height: 100dvh; display: grid;
  grid-template-columns: minmax(300px, 380px) minmax(0, 1fr); grid-template-rows: minmax(0, 1fr);
}
.lista { border-right: 1px solid var(--borda); display: flex; flex-direction: column; min-height: 0; min-width: 0; }
.barra {
  display: flex; align-items: center; gap: 6px; padding: 10px 12px;
  padding-top: calc(10px + env(safe-area-inset-top));
  border-bottom: 1px solid var(--borda); background: var(--fundo);
}
.barra h1 { font-size: 18px; margin: 0 auto 0 6px; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.aviso {
  margin: 10px 12px 0; padding: 10px 12px; border-radius: 14px; background: rgba(245, 158, 11, .12);
  border: 1px solid rgba(245, 158, 11, .3); display: flex; gap: 10px; align-items: center; font-size: 13.5px;
}
.aviso > span { flex: 1; min-width: 0; }
.aviso.versao { background: rgba(34, 197, 94, .12); border-color: rgba(34, 197, 94, .35); }
.fechar-aviso { background: none; border: 0; color: var(--suave); font-size: 18px; padding: 0 2px; line-height: 1; }
.abas { display: flex; gap: 6px; padding: 10px 12px; }
.aba {
  background: transparent; border: 1px solid var(--borda); border-radius: 999px; padding: 6px 14px;
  font-size: 14px; color: var(--suave);
}
.aba.ativa { background: var(--texto); color: var(--fundo); border-color: transparent; font-weight: 700; }
.pilula {
  display: inline-grid; place-items: center; min-width: 20px; height: 20px; padding: 0 6px; border-radius: 999px;
  background: var(--vermelho); color: #fff; font-size: 12px; font-weight: 700; margin-left: 4px;
}
.conversas { list-style: none; margin: 0; padding: 0 8px 20px; overflow-y: auto; flex: 1; }
.item {
  display: grid; grid-template-columns: 44px minmax(0, 1fr) auto; gap: 10px; align-items: center;
  padding: 11px 10px; border-radius: 16px; cursor: pointer;
}
.item:hover, .item.ativo { background: var(--fundo2); }
.inicial {
  width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center;
  font-weight: 800; background: var(--fundo3); position: relative;
}
.item.aguardando .inicial::after {
  content: ''; position: absolute; right: -1px; top: -1px; width: 12px; height: 12px; border-radius: 50%;
  background: var(--vermelho); border: 2px solid var(--fundo);
}
.item .nome { font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.item .previa { color: var(--suave); font-size: 13.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.item.nao-lida .previa { color: var(--texto); font-weight: 600; }
.tags { display: flex; gap: 5px; margin-top: 3px; flex-wrap: wrap; }
.tag { font-size: 11px; padding: 1px 7px; border-radius: 999px; background: var(--fundo3); color: var(--suave); }
.tag.app { background: rgba(255, 79, 43, .16); color: #ff9a85; }
.tag.espera { background: rgba(239, 68, 68, .15); color: #fca5a5; }
.tag.espera.longa { background: var(--vermelho); color: #fff; }
.lado { text-align: right; font-size: 12px; color: var(--suave); display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }

.conversa { display: flex; flex-direction: column; min-height: 0; min-width: 0; }
#conversa-aberta { display: flex; flex-direction: column; height: 100%; min-height: 0; }
.quem { min-width: 0; margin-right: auto; }
.quem h2 { margin: 0; font-size: 16px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.quem p { margin: 0; font-size: 12.5px; color: var(--suave); }
.voltar { display: none; }
.info {
  display: flex; flex-wrap: wrap; gap: 6px; padding: 8px 12px; font-size: 12.5px; color: var(--suave);
  border-bottom: 1px solid var(--borda);
}
.info > * {
  background: var(--fundo2); border: 1px solid var(--borda); border-radius: 999px; padding: 3px 10px;
  max-width: 100%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.info a { color: var(--texto); text-decoration: none; }
.info a.whats { color: #4ade80; border-color: rgba(74, 222, 128, .35); }
.mensagens { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 8px; background: var(--fundo2); }
.msg { max-width: 82%; padding: 9px 13px; border-radius: 18px; white-space: pre-wrap; word-wrap: break-word; }
.msg.cliente { align-self: flex-start; background: var(--fundo3); border-bottom-left-radius: 6px; }
.msg.operador { align-self: flex-end; background: var(--cor); color: #fff; border-bottom-right-radius: 6px; }
.msg.sistema { align-self: center; background: transparent; color: var(--suave); font-size: 12.5px; text-align: center; max-width: 90%; }
.msg .hora { display: block; font-size: 11px; opacity: .65; margin-top: 3px; }
.resposta {
  display: flex; gap: 8px; padding: 10px 12px; padding-bottom: calc(10px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--borda); align-items: flex-end;
}
/* 16px: abaixo disso o navegador do celular dá zoom ao focar o campo. */
.resposta textarea { resize: none; max-height: 160px; min-height: 46px; font-size: 16px; border-radius: 23px; padding: 11px 16px; }
.enviar { width: 46px; height: 46px; padding: 0; border-radius: 50%; flex-shrink: 0; }
.vazio { color: var(--suave); text-align: center; padding: 30px 16px; }
.vazio.grande { margin: auto; }
.toast {
  position: fixed; left: 50%; bottom: calc(80px + env(safe-area-inset-bottom)); transform: translateX(-50%);
  background: var(--texto); color: var(--fundo); padding: 10px 16px; border-radius: 999px; font-weight: 600;
  font-size: 14px; box-shadow: 0 10px 30px -10px rgba(0, 0, 0, .5); max-width: calc(100% - 32px); z-index: 10;
}

/* Celular: uma coluna por vez. */
@media (max-width: 820px) {
  .central { grid-template-columns: minmax(0, 1fr); }
  .central.com-conversa .lista { display: none; }
  .central:not(.com-conversa) .conversa { display: none; }
  .voltar { display: grid; font-size: 22px; margin-left: -4px; }
  .barra { padding-left: 8px; padding-right: 8px; gap: 4px; }
  .quem h2 { font-size: 15.5px; }
  .mensagens { padding: 12px 10px; }
  .msg { max-width: 88%; font-size: 15.5px; }
  .conversas { padding: 0 4px 24px; }
  .item { padding: 12px 8px; }
  .resposta { padding-left: 8px; padding-right: 8px; }
  .toast { bottom: calc(76px + env(safe-area-inset-bottom)); }
}