:root {
  --fundo: #f6f7f9; --cartao: #fff; --texto: #1d2129; --suave: #667085; --borda: #e4e7ec;
  --acento: #128c7e; --acento-texto: #fff; --alta: #d92d20; --ok: #067647;
}
@media (prefers-color-scheme: dark) {
  :root { --fundo: #111418; --cartao: #1a1f25; --texto: #e6e8eb; --suave: #98a2b3; --borda: #2b323b;
          --acento: #25d366; --acento-texto: #0b1a10; --alta: #f97066; --ok: #47cd89; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--fundo); color: var(--texto);
       font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 860px; margin: 0 auto; padding: 16px; }
h1 { font-size: 22px; margin: 8px 0 16px; }
h2 { font-size: 16px; margin: 24px 0 8px; display: flex; gap: 8px; align-items: center; }
.cont { background: var(--borda); border-radius: 99px; padding: 0 8px; font-size: 13px; }
.topo { display: flex; align-items: center; gap: 16px; padding: 10px 16px; background: var(--cartao);
        border-bottom: 1px solid var(--borda); position: sticky; top: 0; }
.topo nav { display: flex; gap: 4px; flex: 1; overflow-x: auto; }
.topo nav a { color: var(--suave); text-decoration: none; padding: 6px 10px; border-radius: 8px; white-space: nowrap; }
.topo nav a.ativo { color: var(--texto); background: var(--fundo); font-weight: 600; }
.marca { white-space: nowrap; }
button { background: var(--acento); color: var(--acento-texto); border: 0; border-radius: 8px;
         padding: 7px 12px; font: inherit; font-weight: 600; cursor: pointer; }
button.sec { background: transparent; color: var(--texto); border: 1px solid var(--borda); font-weight: 500; }
button.link { background: none; color: var(--suave); padding: 4px; font-weight: 400; }
form { margin: 0; }
input, select { font: inherit; color: var(--texto); background: var(--cartao); border: 1px solid var(--borda);
                border-radius: 8px; padding: 7px 10px; min-width: 0; }
.barra { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.acoes { display: flex; gap: 8px; flex-wrap: wrap; }
.itens, .chats { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.item, .chats li { background: var(--cartao); border: 1px solid var(--borda); border-radius: 12px; padding: 12px;
                   display: flex; gap: 12px; justify-content: space-between; align-items: flex-start; }
.item.prio-alta { border-left: 4px solid var(--alta); }
.corpo { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.num { color: var(--suave); font-variant-numeric: tabular-nums; }
.detalhe { color: var(--suave); margin-top: 2px; }
.meta { color: var(--suave); font-size: 13px; display: flex; gap: 10px; flex-wrap: wrap; margin-top: 4px; }
.meta .alta { color: var(--alta); font-weight: 600; }
.botoes { display: flex; gap: 6px; flex-shrink: 0; }
.vazio, .ajuda { color: var(--suave); }
.erro { color: var(--alta); }
.ok { color: var(--ok); font-size: 17px; }
.novo { display: grid; grid-template-columns: 130px 1fr; gap: 8px; }
.novo input[name=titulo], .novo input[name=detalhe] { grid-column: 1 / -1; }
.chats li.off { opacity: .65; }
.chats .corpo { display: flex; flex-direction: column; }
details { margin-top: 24px; }
summary { cursor: pointer; color: var(--suave); }
.fechados { margin-top: 8px; }
.qr { width: 280px; max-width: 100%; background: #fff; padding: 12px; border-radius: 12px; }
.login { max-width: 320px; margin: 15vh auto; display: grid; gap: 12px; }
.login form { display: grid; gap: 12px; }
.login label { display: grid; gap: 6px; }
@media (max-width: 560px) {
  .item { flex-direction: column; }
  .botoes { align-self: stretch; } .botoes form, .botoes button { flex: 1; width: 100%; }
  .marca { display: none; }
}
.sem-nome { color: var(--alta); }
.previa { color: var(--suave); font-size: 13px; font-style: italic; margin-top: 4px; overflow-wrap: anywhere; }
.renomear { display: none; gap: 6px; margin-top: 8px; }
.renomear.aberto { display: flex; }
.chats li:hover .renomear { display: flex; }
.renomear input { flex: 1; }
.aviso { background: var(--cartao); border: 1px solid var(--borda); border-left: 4px solid var(--alta); border-radius: 8px; padding: 10px 12px; }