:root {
  --fundo: #eef1f0;
  --painel: #ffffff;
  --painel-2: #f6f8f7;
  --borda: #dde3e0;
  --texto: #18211d;
  --texto-2: #5c6b64;
  --primaria: #1f7a5c;
  --primaria-texto: #ffffff;
  --balao-meu: #d8f1e4;
  --balao-dele: #ffffff;
  --selecao: #e3efe9;
  --erro: #b42318;
  --lido: #2f80ed;
  --sombra: 0 1px 2px rgba(0, 0, 0, .06), 0 4px 16px rgba(0, 0, 0, .06);
  --raio: 10px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fundo: #0f1513;
    --painel: #172019;
    --painel-2: #1c2721;
    --borda: #2a3731;
    --texto: #e6ece9;
    --texto-2: #9aaba3;
    --primaria: #2fa37c;
    --balao-meu: #1e4a3a;
    --balao-dele: #1f2a25;
    --selecao: #22322b;
    --erro: #f97066;
    --lido: #6aa9ff;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--fundo);
  color: var(--texto);
}
[hidden] { display: none !important; }
button { font: inherit; color: inherit; cursor: pointer; }
input, textarea, select { font: inherit; color: inherit; }

.btn {
  border: 1px solid var(--borda); background: var(--painel); border-radius: 8px;
  padding: 8px 14px;
}
.btn.primario { background: var(--primaria); border-color: var(--primaria); color: var(--primaria-texto); font-weight: 600; }
.btn:disabled { opacity: .55; cursor: default; }
.icone {
  border: 0; background: transparent; width: 34px; height: 34px; border-radius: 8px;
  font-size: 16px; color: var(--texto-2);
}
.icone:hover { background: var(--painel-2); color: var(--texto); }
.erro { color: var(--erro); min-height: 1.2em; margin: 4px 0; }
.dica { color: var(--texto-2); font-size: 13px; }

.marca { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 16px; }
.marca-icone {
  width: 22px; height: 22px; border-radius: 6px; background: var(--primaria);
  -webkit-mask: none; position: relative;
}
.marca-icone::after {
  content: ""; position: absolute; inset: 6px 5px 7px 5px; background: #fff; border-radius: 2px;
}

/* ---------- login ---------- */
.login { min-height: 100%; display: grid; place-items: center; padding: 16px; }
.login-card {
  width: 100%; max-width: 340px; background: var(--painel); border: 1px solid var(--borda);
  border-radius: 14px; padding: 28px; box-shadow: var(--sombra); display: grid; gap: 14px;
}
.login-card label { display: grid; gap: 4px; color: var(--texto-2); font-size: 13px; }
.login-card input {
  padding: 10px 12px; border: 1px solid var(--borda); border-radius: 8px; background: var(--painel-2);
}

/* ---------- app ---------- */
.app { height: 100%; display: grid; grid-template-columns: minmax(300px, 380px) 1fr; }
.lateral {
  display: flex; flex-direction: column; min-height: 0; background: var(--painel);
  border-right: 1px solid var(--borda);
}
.lateral-topo {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 12px 12px 8px 16px;
}
.topo-acoes { display: flex; align-items: center; gap: 2px; }
.usuario { color: var(--texto-2); font-size: 13px; margin-right: 6px; max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.filtros { display: flex; gap: 6px; padding: 4px 12px 8px; overflow-x: auto; scrollbar-width: none; }
.filtro {
  display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
  border: 1px solid var(--borda); background: var(--painel); border-radius: 999px; padding: 4px 10px; font-size: 13px;
}
.filtro.ativo { background: var(--selecao); border-color: var(--primaria); }
.filtro .ponto { width: 8px; height: 8px; border-radius: 50%; }
.filtro .qtd { background: var(--primaria); color: #fff; border-radius: 999px; padding: 0 6px; font-size: 11px; font-weight: 700; }

.busca { padding: 0 12px 8px; }
.busca input {
  width: 100%; padding: 8px 12px; border-radius: 8px; border: 1px solid var(--borda); background: var(--painel-2);
}

.lista { list-style: none; margin: 0; padding: 0; overflow-y: auto; flex: 1; }
.item {
  display: grid; grid-template-columns: 42px 1fr auto; gap: 10px; align-items: center;
  padding: 10px 14px; cursor: pointer; border-bottom: 1px solid var(--borda);
}
.item:hover { background: var(--painel-2); }
.item.atual { background: var(--selecao); }
.item-meio { min-width: 0; }
.item-nome { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item-ultima { color: var(--texto-2); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item-lado { display: grid; justify-items: end; gap: 4px; font-size: 12px; color: var(--texto-2); }
.item.nao-lida .item-ultima { color: var(--texto); font-weight: 600; }
.badge { background: var(--primaria); color: #fff; border-radius: 999px; min-width: 20px; padding: 0 6px; text-align: center; font-weight: 700; font-size: 11px; line-height: 20px; }
.selo {
  display: inline-flex; align-items: center; gap: 4px; font-size: 11px; padding: 1px 7px; border-radius: 999px;
  border: 1px solid currentColor; max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.vazio-lista { padding: 24px 16px; color: var(--texto-2); text-align: center; }

.avatar {
  width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center;
  font-weight: 700; color: #fff; background: #7a8a83; font-size: 15px; flex: none;
}
.avatar.grupo { border-radius: 12px; }

.conexao { padding: 6px 12px; background: #fff4d6; color: #7a5300; font-size: 12px; text-align: center; }

/* ---------- chat ---------- */
.chat { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.chat-vazio { margin: auto; text-align: center; color: var(--texto-2); padding: 16px; }
.chat-aberto { display: flex; flex-direction: column; height: 100%; min-height: 0; }
.chat-topo {
  display: flex; align-items: center; gap: 12px; padding: 10px 16px;
  background: var(--painel); border-bottom: 1px solid var(--borda);
}
.chat-titulo { display: grid; min-width: 0; flex: 1; }
.chat-titulo strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sub { color: var(--texto-2); font-size: 12px; }
.selo-via {
  font-size: 12px; padding: 4px 10px; border-radius: 999px; border: 1px solid currentColor; white-space: nowrap;
}
.voltar { display: none; }

.mensagens { flex: 1; overflow-y: auto; padding: 16px 6%; display: flex; flex-direction: column; gap: 4px; }
.dia { align-self: center; margin: 10px 0 6px; font-size: 12px; color: var(--texto-2); background: var(--painel); border: 1px solid var(--borda); padding: 2px 10px; border-radius: 999px; }
.carregar-mais { align-self: center; margin-bottom: 8px; }

.msg { max-width: min(560px, 78%); align-self: flex-start; }
.msg.minha { align-self: flex-end; }
.balao {
  background: var(--balao-dele); border: 1px solid var(--borda); border-radius: var(--raio);
  padding: 6px 10px 4px; box-shadow: 0 1px 1px rgba(0, 0, 0, .04); overflow-wrap: anywhere;
}
.msg.minha .balao { background: var(--balao-meu); border-color: transparent; }
.autor { font-size: 12px; font-weight: 700; margin-bottom: 2px; }
.texto-msg { white-space: pre-wrap; }
.texto-msg a { color: var(--lido); }
.apagada { color: var(--texto-2); font-style: italic; }
.rodape-msg { display: flex; justify-content: flex-end; gap: 6px; font-size: 11px; color: var(--texto-2); margin-top: 2px; }
.ticks.read { color: var(--lido); }
.falhou { color: var(--erro); }
.reacoes { display: flex; gap: 2px; margin-top: -4px; padding: 0 6px; }
.reacoes span { background: var(--painel); border: 1px solid var(--borda); border-radius: 999px; padding: 0 5px; font-size: 13px; }
.midia img, .midia video { display: block; max-width: 100%; max-height: 320px; border-radius: 6px; margin-bottom: 4px; }
.midia img.sticker { max-width: 140px; }
.midia audio { width: 260px; max-width: 100%; }
.doc { display: inline-flex; gap: 8px; align-items: center; padding: 8px 10px; border-radius: 8px; background: var(--painel-2); color: inherit; text-decoration: none; margin-bottom: 4px; }

.compositor {
  display: flex; gap: 8px; padding: 10px 12px; background: var(--painel); border-top: 1px solid var(--borda); align-items: flex-end;
}
.compositor textarea {
  flex: 1; resize: none; max-height: 160px; padding: 10px 12px; border-radius: 10px;
  border: 1px solid var(--borda); background: var(--painel-2);
}

/* ---------- admin ---------- */
.dlg {
  width: min(920px, calc(100vw - 32px)); max-height: calc(100vh - 48px); padding: 0;
  border: 1px solid var(--borda); border-radius: 14px; background: var(--painel); color: var(--texto);
}
.dlg::backdrop { background: rgba(0, 0, 0, .4); }
.dlg-topo { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; border-bottom: 1px solid var(--borda); }
.abas { display: flex; gap: 4px; }
.aba { border: 0; background: transparent; padding: 8px 12px; border-radius: 8px; color: var(--texto-2); }
.aba.ativa { background: var(--selecao); color: var(--texto); font-weight: 600; }
.dlg-corpo { padding: 14px 18px 18px; overflow: auto; max-height: calc(100vh - 120px); }
.tabela { display: grid; gap: 8px; }
.linha-num, .linha-usu {
  display: grid; gap: 10px; align-items: center; padding: 10px 12px; border: 1px solid var(--borda); border-radius: 10px;
}
.linha-num { grid-template-columns: 1.4fr 1fr auto auto auto 1.2fr auto; }
.linha-usu { grid-template-columns: 1fr 1fr auto auto; cursor: pointer; }
.linha-num input[type=text] { width: 100%; padding: 6px 8px; border: 1px solid var(--borda); border-radius: 6px; background: var(--painel-2); }
.linha-num input[type=color] { width: 34px; height: 30px; padding: 0; border: 0; background: transparent; }
.estado { font-size: 12px; }
.estado.ok { color: var(--primaria); }
.estado.nao { color: var(--erro); }
code { background: var(--painel-2); padding: 1px 6px; border-radius: 4px; overflow-wrap: anywhere; }
.form-usuario { margin-top: 18px; display: grid; gap: 10px; grid-template-columns: 1fr 1fr; }
.form-usuario h3, .form-usuario fieldset, .form-usuario .erro, .form-usuario .linha-botoes { grid-column: 1 / -1; }
.form-usuario h3 { margin: 0; font-size: 15px; }
.form-usuario label { display: grid; gap: 4px; font-size: 13px; color: var(--texto-2); }
.form-usuario label.check { display: flex; align-items: center; gap: 6px; color: var(--texto); }
.form-usuario input:not([type=checkbox]) { padding: 8px 10px; border: 1px solid var(--borda); border-radius: 8px; background: var(--painel-2); }
.form-usuario fieldset { border: 1px solid var(--borda); border-radius: 8px; }
.checks { display: flex; flex-wrap: wrap; gap: 12px; }
.checks label { display: flex; align-items: center; gap: 6px; color: var(--texto); }
.linha-botoes { display: flex; justify-content: flex-end; gap: 8px; }

/* ---------- celular ---------- */
@media (max-width: 760px) {
  .app { grid-template-columns: minmax(0, 1fr); }
  .lateral { min-width: 0; border-right: 0; }
  .app .chat { display: none; }
  .app.com-chat .lateral { display: none; }
  .app.com-chat .chat { display: flex; height: 100%; }
  .voltar { display: inline-block; }
  .selo-via { display: none; }
  .mensagens { padding: 12px; }
  .msg { max-width: 88%; }
  .linha-num { grid-template-columns: 1fr 1fr; }
  .linha-usu { grid-template-columns: 1fr auto; }
  .form-usuario { grid-template-columns: 1fr; }
}