/* Identidade visual: mesma da calculadora (INFOS/site-calculadora-maquininha.md) */
:root {
  --verde: #AED24D;
  --verde-dark: #8FB33A;
  --verde-glow: rgba(174, 210, 77, 0.18);
  --escuro: #2C2F31;
  --escuro2: #1e2123;
  --surface: #23272A;
  --surface2: #2a2e30;
  --border: #343839;
  --stone: #717577;
  --washed: #C6C8C8;
  --branco: #FFFFFF;
  --erro: #EF4444;
  --erro-glow: rgba(239, 68, 68, 0.15);
  --atencao: #F59E0B;
  --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--escuro2);
  color: var(--branco);
  font-family: 'Montserrat', sans-serif;
  font-weight: 400;
  font-size: 15px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  background: var(--verde);
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.header-title {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 18px;
  color: var(--escuro);
}
.header-title em { font-style: normal; }
.header-badge {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--escuro);
  background: rgba(0, 0, 0, 0.12);
  border-radius: 20px;
  padding: 4px 14px;
}

.chat-shell {
  flex: 1;
  display: flex;
  flex-direction: column;
  max-width: 760px;
  width: 100%;
  margin: 0 auto;
  padding: 24px 20px;
  min-height: 0;
}

.chat-topo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.nome-vendedor { font-size: 13px; color: var(--stone); }
.botao-sair {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--washed);
  border-radius: 6px;
  font-family: 'Montserrat', sans-serif;
  font-size: 12px;
  padding: 6px 12px;
  cursor: pointer;
}
.botao-sair:hover { border-color: var(--erro); color: var(--erro); }

/* ── Tela de login ── */
.login-shell {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 20px;
}
.card-login {
  width: 100%;
  max-width: 360px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.card-login h1 { font-size: 20px; font-weight: 800; }
.login-hint { font-size: 13px; color: var(--stone); margin-top: -8px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 12px; font-weight: 600; color: var(--washed); }
.form-group input {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--branco);
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  padding: 10px 12px;
  outline: none;
  transition: border-color 0.15s;
}
.form-group input:focus { border-color: var(--verde); }
.card-login button[type="submit"] {
  background: var(--verde);
  color: var(--escuro);
  border: none;
  border-radius: 8px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 14px;
  padding: 12px;
  cursor: pointer;
  transition: background 0.15s;
}
.card-login button[type="submit"]:hover { background: var(--verde-dark); }
.erro-login {
  background: var(--erro-glow);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 12px;
}

.mensagens {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-bottom: 16px;
}

.bolha {
  max-width: 80%;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.5;
  animation: pop 0.2s ease both;
}
@keyframes pop {
  0% { transform: scale(0.97); opacity: 0.4; }
  100% { transform: scale(1); opacity: 1; }
}

.bolha-vendedor {
  align-self: flex-end;
  background: var(--surface2);
  color: var(--branco);
  border: 1px solid var(--border);
}

.bolha-sistema { align-self: flex-start; border: 1px solid var(--border); }

.bolha-resposta_final {
  background: var(--surface);
  border-color: rgba(174, 210, 77, 0.35);
}
.bolha-pergunta_esclarecimento {
  background: var(--surface);
  border-color: rgba(245, 158, 11, 0.4);
}
.bolha-nao_encontrado {
  background: var(--surface);
  border-color: rgba(239, 68, 68, 0.4);
}

.bolha-rotulo {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 6px;
  display: block;
}
.bolha-resposta_final .bolha-rotulo { color: var(--verde); }
.bolha-pergunta_esclarecimento .bolha-rotulo { color: var(--atencao); }
.bolha-nao_encontrado .bolha-rotulo { color: var(--erro); }

.fontes {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--washed);
}
.fontes summary { cursor: pointer; color: var(--stone); font-weight: 600; }
.fontes-item { margin-top: 6px; padding-left: 10px; border-left: 2px solid var(--verde); }
.fontes-item .origem { color: var(--verde); font-weight: 600; }

.digitando { align-self: flex-start; color: var(--stone); font-size: 13px; font-style: italic; }

.form-pergunta {
  display: flex;
  gap: 10px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
.form-pergunta input {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--branco);
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.15s;
}
.form-pergunta input:focus { border-color: var(--verde); }
.form-pergunta button {
  background: var(--verde);
  color: var(--escuro);
  border: none;
  border-radius: 8px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 13px;
  padding: 0 20px;
  cursor: pointer;
  transition: background 0.15s;
}
.form-pergunta button:hover { background: var(--verde-dark); }
.form-pergunta button:disabled { opacity: 0.5; cursor: not-allowed; }

@media (max-width: 600px) {
  .chat-shell { padding: 16px 12px; }
  .bolha { max-width: 90%; }
}