* { box-sizing: border-box; margin: 0; }

:root {
  --bg: #f4f4f2;
  --card: #ffffff;
  --borda: #e2e2de;
  --texto: #1f1f1d;
  --texto-2: #6b6b66;
  --acento: #1d6e56;
  --acento-claro: #e3f2ec;
}

body {
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--texto);
  height: 100vh;
  overflow: hidden;
}

.oculto { display: none !important; }

/* ---------- login ---------- */

#tela-login {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  background: var(--card);
  border: 1px solid var(--borda);
  border-radius: 14px;
  padding: 2.2rem;
  width: 340px;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.login-card h1 { font-size: 1.6rem; }
.logo-login { width: 200px; align-self: flex-start; }
.logo-sidebar { height: 26px; }
.login-card .sub { color: var(--texto-2); font-size: 0.85rem; margin-top: -0.6rem; }
.login-card label { font-size: 0.85rem; color: var(--texto-2); display: flex; flex-direction: column; gap: 4px; }

.login-card input {
  border: 1px solid var(--borda);
  border-radius: 8px;
  padding: 10px;
  font-size: 0.95rem;
}

.login-card button {
  background: var(--acento);
  color: #fff;
  border: 0;
  border-radius: 8px;
  padding: 11px;
  font-size: 0.95rem;
  cursor: pointer;
}

.erro { color: #b3362c; font-size: 0.85rem; min-height: 1em; }

/* ---------- chat ---------- */

#tela-chat { display: flex; height: 100vh; }

#sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--card);
  border-right: 1px solid var(--borda);
  display: flex;
  flex-direction: column;
}

.sidebar-topo {
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--borda);
}

.logo { font-weight: 600; font-size: 1.05rem; }

.sidebar-topo button {
  background: var(--acento-claro);
  color: var(--acento);
  border: 0;
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 0.85rem;
  cursor: pointer;
}

#lista-conversas { flex: 1; overflow-y: auto; padding: 8px; }

.item-conversa {
  padding: 9px 10px;
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--texto-2);
  cursor: pointer;
  margin-bottom: 2px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.item-conversa .titulo-conversa {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.apagar-conversa {
  display: none;
  background: none;
  border: 0;
  color: var(--texto-2);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 2px 5px;
  border-radius: 5px;
  flex-shrink: 0;
}

.item-conversa:hover .apagar-conversa { display: block; }
.apagar-conversa:hover { background: #fdecea; color: #b3362c; }

.item-conversa:hover { background: var(--bg); }
.item-conversa.ativa { background: var(--acento-claro); color: var(--acento); }

.sidebar-rodape {
  border-top: 1px solid var(--borda);
  padding: 12px 14px;
  font-size: 0.78rem;
  color: var(--texto-2);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-rodape button {
  background: none;
  border: 1px solid var(--borda);
  border-radius: 8px;
  padding: 6px;
  cursor: pointer;
  color: var(--texto-2);
}

#area-chat { flex: 1; display: flex; flex-direction: column; min-width: 0; }

#mensagens {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
}

#boas-vindas { margin: auto; text-align: center; color: var(--texto-2); }
#boas-vindas h2 { color: var(--texto); margin-bottom: 6px; }

.sugestoes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 18px;
  max-width: 520px;
}

.sugestao {
  background: var(--card);
  border: 1px solid var(--borda);
  border-radius: 20px;
  padding: 8px 14px;
  font-size: 0.83rem;
  color: var(--texto-2);
  cursor: pointer;
}

.sugestao:hover { border-color: var(--acento); color: var(--acento); }

.msg-user {
  align-self: flex-end;
  max-width: 75%;
  background: var(--acento);
  color: #fff;
  border-radius: 14px 14px 4px 14px;
  padding: 10px 16px;
  font-size: 0.93rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.msg-bot {
  align-self: flex-start;
  max-width: 92%;
  font-size: 0.93rem;
  line-height: 1.55;
}

.msg-bot .chips { margin-bottom: 6px; display: flex; flex-wrap: wrap; gap: 6px; }

.chip {
  font-size: 0.72rem;
  background: var(--acento-claro);
  color: var(--acento);
  border-radius: 10px;
  padding: 2px 9px;
}

.msg-bot .conteudo table {
  border-collapse: collapse;
  margin: 8px 0;
  font-size: 0.87rem;
  background: var(--card);
}

.msg-bot .conteudo th, .msg-bot .conteudo td {
  border: 1px solid var(--borda);
  padding: 6px 10px;
  text-align: left;
}

.msg-bot .conteudo th { background: var(--bg); }
.msg-bot .conteudo p { margin: 6px 0; }
.msg-bot .conteudo ul, .msg-bot .conteudo ol { margin: 6px 0 6px 20px; }
.msg-bot .conteudo a { color: var(--acento); }
.msg-bot .conteudo code { background: var(--card); border: 1px solid var(--borda); border-radius: 4px; padding: 1px 5px; font-size: 0.85em; }

.digitando { color: var(--texto-2); font-size: 0.85rem; }

#form-envio {
  display: flex;
  gap: 10px;
  padding: 14px 24px 20px;
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
}

#campo-mensagem {
  flex: 1;
  resize: none;
  border: 1px solid var(--borda);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--card);
  max-height: 140px;
}

#campo-mensagem:focus { outline: 2px solid var(--acento); border-color: transparent; }

#btn-enviar {
  background: var(--acento);
  color: #fff;
  border: 0;
  border-radius: 12px;
  width: 46px;
  font-size: 1.1rem;
  cursor: pointer;
  flex-shrink: 0;
}

#btn-enviar:disabled { opacity: 0.5; cursor: default; }

@media (max-width: 720px) {
  #sidebar { display: none; }
}