:root {
  --bg: #f6f7f9; --fg: #1d2330; --muted: #667085; --card: #fff; --border: #dde1e7;
  --accent: #6b3fd4; --accent-fg: #fff; --err-bg: #fdecec; --err: #a12626; --ok-bg: #e8f6ee; --ok: #1e6b40;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12141a; --fg: #e6e8ee; --muted: #9aa3b2; --card: #1b1e26; --border: #2c313c;
    --accent: #9d7bff; --accent-fg: #12141a; --err-bg: #3a1a1a; --err: #ff9b9b; --ok-bg: #16301f; --ok: #8fe0ad;
  }
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 system-ui, sans-serif; background: var(--bg); color: var(--fg); }
main { max-width: 1100px; margin: 0 auto; padding: 24px 16px; }
a { color: var(--accent); }
h1 { font-size: 1.5rem; margin: 0 0 16px; }
h2 { font-size: 1.15rem; margin: 0 0 12px; }
.muted { color: var(--muted); }

.topbar { display: flex; gap: 24px; align-items: center; padding: 10px 16px;
  background: var(--card); border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.topbar .brand { font-weight: 700; text-decoration: none; color: var(--fg); }
.topbar nav { display: flex; gap: 16px; flex: 1; }
.topbar nav a { text-decoration: none; }
.logout { display: flex; gap: 8px; align-items: center; margin: 0; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 20px; margin: 20px 0; }
.narrow { max-width: 380px; margin: 10vh auto; }
.stack { display: flex; flex-direction: column; gap: 12px; }
label { display: flex; flex-direction: column; gap: 4px; font-weight: 500; }
label.inline { flex-direction: row; align-items: center; gap: 8px; font-weight: 400; }
input { font: inherit; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg); color: var(--fg); }
button { font: inherit; padding: 9px 14px; border: 0; border-radius: 6px; background: var(--accent);
  color: var(--accent-fg); cursor: pointer; font-weight: 600; }
button.link { background: none; color: var(--accent); padding: 0; font-weight: 400; }

table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--border); }
th { font-size: .85rem; color: var(--muted); font-weight: 600; }

.alert { padding: 10px 14px; border-radius: 6px; }
.alert.error { background: var(--err-bg); color: var(--err); }
.alert.ok { background: var(--ok-bg); color: var(--ok); }

.small { font-size: .85rem; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.pos { color: var(--ok); }
.erro { color: var(--err); }
.tag { display: inline-block; font-size: .75rem; padding: 1px 6px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--muted); margin: 1px 2px 1px 0; }
tr.pagamento td { color: var(--muted); }
.head-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.head-row h1 { margin: 0; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; }
select { font: inherit; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; background: var(--card); color: var(--fg); }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin: 16px 0; }
.kpi { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; display: flex; flex-direction: column; gap: 4px; }
.kpi strong { font-size: 1.35rem; font-variant-numeric: tabular-nums; }
.table-wrap { overflow-x: auto; }

/* fase 3: categorias, regras, revisão, resumo */
.spaced { margin-top: 28px; }
.inline-form, .rule-form { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 0; }
.inline-form input[name=nome] { min-width: 12rem; }
button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--border); padding: 6px 10px; }
button.danger, .danger { color: var(--err); }
.catform { margin: 0; }
.catform select { padding: 4px 6px; max-width: 15rem; font-size: .85rem; }
tr.pendente td:first-child { box-shadow: inset 3px 0 0 var(--accent); }
td.nivel0 { font-weight: 600; }
code { font-size: .85rem; }

.resumo { background: var(--card); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.resumo-head, .resumo summary, .resumo .item {
  display: grid; grid-template-columns: 1fr 8rem 4.5rem; gap: 12px; align-items: center; padding: 8px 12px; }
.resumo-head { font-size: .85rem; color: var(--muted); font-weight: 600; border-bottom: 1px solid var(--border); }
.resumo summary { cursor: pointer; list-style: none; border-bottom: 1px solid var(--border); }
.resumo summary::-webkit-details-marker { display: none; }
.resumo summary > span:first-child::before { content: "▸ "; color: var(--muted); }
.resumo details[open] > summary > span:first-child::before { content: "▾ "; }
.resumo > details > summary { font-weight: 600; }
.resumo .filhos { padding-left: 18px; }
.resumo .item { border-bottom: 1px solid var(--border); font-size: .92rem; }
.resumo .pendente > summary { color: var(--accent); }
@media (max-width: 560px) {
  .resumo-head, .resumo summary, .resumo .item { grid-template-columns: 1fr 6.5rem 3.5rem; gap: 6px; }
}
.inline-form select { max-width: 18rem; }
td:has(> a[href^="/transacoes?fatura"]) { white-space: nowrap; }

/* fase 4: IA, sugestões, API */
h3 { font-size: 1rem; margin: 0 0 8px; }
.ia-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.ia-grid ol { padding-left: 20px; margin: 0 0 8px; }
textarea { font: .85rem/1.4 ui-monospace, monospace; padding: 8px 10px; border: 1px solid var(--border);
  border-radius: 6px; background: var(--bg); color: var(--fg); width: 100%; resize: vertical; }
pre { background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 10px; overflow-x: auto;
  white-space: pre-wrap; word-break: break-all; }
pre.token { font-size: 1rem; user-select: all; }
.sugestao { margin-bottom: 6px; }
form.inline { display: inline; margin: 0; }
button:disabled { opacity: .5; cursor: default; }

/* administração */
.wide-narrow { max-width: 480px; margin: 6vh auto; }
.narrow-form { max-width: 380px; }
fieldset { border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; display: flex; flex-direction: column; gap: 10px; }
legend { font-weight: 600; padding: 0 4px; }
.spaced-sm { margin-top: 14px; }
.manut { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.manut form, .manut div { margin: 0; }
a.button { display: inline-block; font-weight: 600; padding: 6px 10px; border-radius: 6px; text-decoration: none; }
a.button.secondary { border: 1px solid var(--border); color: var(--accent); }
table.kv th { width: 11rem; }
table.logs td { vertical-align: top; }
.tag.erro { color: var(--err); border-color: var(--err); }
tr.inativo td { opacity: .6; }
.topbar nav { flex-wrap: wrap; }
.float-right { float: right; margin: 0 0 8px 12px; }