:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1d2330;
  --muted: #6b7280;
  --border: #dde1e7;
  --accent: #2f5bd3;
  --accent-text: #ffffff;
  --danger: #c0392b;
  --ok-bg: #e3f4e8; --ok-text: #1e6b3a;
  --warn-bg: #fdf1dc; --warn-text: #8a5a00;
  --info-bg: #e6edfb; --info-text: #2a4a9b;
  --grey-bg: #eceef1; --grey-text: #5b6270;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171c;
    --surface: #1d2129;
    --text: #e6e8ec;
    --muted: #9aa1ad;
    --border: #323844;
    --accent: #6f93f0;
    --accent-text: #0f1420;
    --danger: #ef7466;
    --ok-bg: #1d3a28; --ok-text: #8fd6a6;
    --warn-bg: #3b2f17; --warn-text: #f1c472;
    --info-bg: #1f2c4a; --info-text: #a8bff5;
    --grey-bg: #2a2f38; --grey-text: #b3b9c4;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

a { color: var(--accent); }

main { max-width: 1200px; margin: 0 auto; padding: 16px; }

h1 { font-size: 1.5rem; margin: 0.5rem 0 1rem; }
h2 { font-size: 1.1rem; margin: 2rem 0 0.75rem; }

.topbar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px;
  padding: 10px 16px; background: var(--surface); border-bottom: 1px solid var(--border);
}
.topbar .brand { font-weight: 700; color: var(--text); text-decoration: none; }
.topbar nav { display: flex; flex-wrap: wrap; gap: 4px 14px; flex: 1; }
.topbar nav a { text-decoration: none; color: var(--muted); }
.topbar nav a.active, .topbar nav a:hover { color: var(--text); }
.topbar .logout { display: flex; align-items: center; gap: 8px; color: var(--muted); margin: 0; }

.narrow { max-width: 560px; }
.muted, small { color: var(--muted); }
tr.muted td { color: var(--muted); }
.center { text-align: center; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }

/* Formulários */
.stack { display: flex; flex-direction: column; gap: 14px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row > label { flex: 1 1 180px; }
label { display: flex; flex-direction: column; gap: 4px; font-weight: 500; }
label.check { flex-direction: row; align-items: center; font-weight: 400; }
input, select, textarea {
  font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--border); border-radius: 6px; padding: 7px 9px; width: 100%;
}
input[type="checkbox"] { width: auto; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

button, .button {
  display: inline-block; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none;
  background: var(--accent); color: var(--accent-text); border: 1px solid var(--accent);
  border-radius: 6px; padding: 7px 14px; text-align: center;
}
button.secondary, .button.secondary { background: transparent; color: var(--accent); }
button.link { background: none; border: none; padding: 0; color: var(--accent); font-weight: 400; }
button.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
button.link.danger { background: none; color: var(--danger); }
.danger-zone { margin-top: 2.5rem; }

.filters { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px; margin-bottom: 16px; }
.filters label { flex: 0 1 200px; }

/* Avisos */
.flash { padding: 10px 14px; border-radius: 6px; margin: 0 0 16px; }
.flash ul { margin: 0; padding-left: 18px; }
.flash-success { background: var(--ok-bg); color: var(--ok-text); }
.flash-error { background: #fbe4e1; color: #8e2318; }
@media (prefers-color-scheme: dark) {
  .flash-error { background: #44201c; color: #f4b0a7; }
}

/* Navegação de mês e cartões */
.month-nav { display: flex; align-items: center; gap: 12px; }
.month-nav h1 { margin: 0.5rem 0; text-align: center; flex: 1; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin: 16px 0; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px 16px; display: flex; flex-direction: column; gap: 6px;
}
.card-label { color: var(--muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.03em; }
.card-value { font-size: 1.35rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.card-hint { color: var(--muted); font-size: 0.9rem; }
.card-result { border-color: var(--accent); }
.card-result .button { align-self: flex-start; margin-top: 4px; }

/* Tabelas */
.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; }
table { border-collapse: collapse; width: 100%; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
thead th { font-size: 0.85rem; color: var(--muted); font-weight: 600; white-space: nowrap; }
tfoot th { border-bottom: none; }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: none; }
table.grid th, table.grid td { font-size: 0.9rem; padding: 6px 8px; }
table.grid tbody th { font-weight: 500; min-width: 160px; }
table.grid tbody th small { display: block; font-weight: 400; }
tr.strong td, tr.strong th { font-weight: 700; }
th.current { color: var(--accent); }
.cell-advanced { text-decoration: line-through; color: var(--muted); }
.cell-paid_outside { color: var(--muted); background: var(--grey-bg); }

.edit-table input, .edit-table select { padding: 5px 7px; }
.edit-table .w-xs { width: 64px; }
.edit-table .w-sm { width: 110px; }
.new-row td { background: var(--bg); }

.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 0.8rem; font-weight: 600; white-space: nowrap; }
.badge-pending { background: var(--warn-bg); color: var(--warn-text); }
.badge-advanced { background: var(--info-bg); color: var(--info-text); }
.badge-paid_outside { background: var(--grey-bg); color: var(--grey-text); }
.badge-ok { background: var(--ok-bg); color: var(--ok-text); }
.badge-partial { background: var(--info-bg); color: var(--info-text); }

ul.plain { padding-left: 18px; }
code { font-size: 0.9em; }