:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1c2430;
  --muted: #5f6b7a;
  --border: #d9dee5;
  --accent: #0f5fa8;
  --accent-text: #ffffff;
  --row-alt: #f9fafb;
  --title-row: #eef2f7;
  --danger: #b42318;
  --ok: #067647;
  --warn: #b54708;
  --flash: #e8f3ff;
  --error-bg: #fef3f2;
  --void: #98a2b3;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11151b;
    --surface: #181d25;
    --text: #e4e8ee;
    --muted: #98a3b3;
    --border: #2c3440;
    --accent: #4c9be8;
    --accent-text: #0b1220;
    --row-alt: #1c222b;
    --title-row: #202834;
    --danger: #f97066;
    --ok: #47cd89;
    --warn: #fdb022;
    --flash: #13263b;
    --error-bg: #2b1715;
    --void: #667085;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.4; }
a { color: var(--accent); }
h1 { font-size: 1.35rem; margin: 0 0 .75rem; }
h2 { font-size: 1.1rem; margin: 1.5rem 0 .5rem; }
.muted { color: var(--muted); }
.code { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: .92em; }
.warn { color: var(--warn); }
.ok { color: var(--ok); }
.empty { color: var(--muted); text-align: center; padding: 1.5rem; }

/* layout */
.top {
  position: sticky; top: 0; z-index: 5; display: flex; gap: 1rem; align-items: center; flex-wrap: wrap;
  padding: .5rem 1rem; background: var(--surface); border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 1.15rem; text-decoration: none; color: var(--text); letter-spacing: .02em; }
.ctx { display: flex; gap: .4rem; flex-wrap: wrap; flex: 1; }
.ctx input[type=number] { width: 6rem; }
.user { display: flex; gap: .5rem; align-items: center; }
.side {
  position: fixed; top: 3.2rem; bottom: 0; left: 0; width: 13rem; overflow-y: auto; padding: .5rem 0 1rem;
  background: var(--surface); border-right: 1px solid var(--border);
}
.side a { display: block; padding: .35rem 1rem; text-decoration: none; color: var(--text); }
.side a:hover { background: var(--row-alt); }
.side a[aria-current] { background: var(--title-row); border-left: 3px solid var(--accent); padding-left: calc(1rem - 3px); font-weight: 600; }
.side .group { margin: .9rem 1rem .2rem; font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
main { padding: 1.25rem; max-width: 100%; }
main.with-nav { margin-left: 13rem; }
@media (max-width: 800px) {
  .side { position: static; width: auto; display: flex; flex-wrap: wrap; border-right: 0; border-bottom: 1px solid var(--border); }
  .side .group { display: none; }
  main.with-nav { margin-left: 0; }
  main { padding: 1rem; }
}

/* controls */
input, select, button, .button {
  font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; padding: .35rem .55rem; min-height: 2rem;
}
input:focus, select:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
input[readonly] { background: var(--row-alt); }
button, .button { cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: .3rem; }
button:hover, .button:hover { border-color: var(--accent); }
.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); font-weight: 600; }
.danger { color: var(--danger); border-color: var(--danger); }
button.link { border: 0; background: none; color: var(--accent); padding: 0 .2rem; min-height: auto; }
label { display: flex; flex-direction: column; gap: .2rem; font-size: .88rem; color: var(--muted); }
label > input, label > select { color: var(--text); font-size: 1rem; }
label.check { flex-direction: row; align-items: center; gap: .4rem; color: var(--text); }
form.inline { display: inline; }

.titlebar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: .5rem; }
.titlebar h1 { margin: 0; }
.filters, .inline-form { display: flex; gap: .5rem; flex-wrap: wrap; align-items: end; margin: .75rem 0; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr)); gap: .8rem 1rem; max-width: 60rem; }
.form-grid .wide { grid-column: 1 / -1; }
.form-grid.head { max-width: none; margin-bottom: 1rem; }
.actions { display: flex; gap: .6rem; align-items: center; margin-top: 1rem; }
.stack { display: grid; gap: .8rem; }

.flash { background: var(--flash); border: 1px solid var(--border); padding: .6rem .9rem; border-radius: 6px; }
.errors { background: var(--error-bg); border: 1px solid var(--danger); color: var(--text); padding: .6rem .9rem; border-radius: 6px; margin-bottom: 1rem; }
.errors ul { margin: .3rem 0 0; padding-left: 1.2rem; }
.badge { font-size: .75rem; padding: .1rem .45rem; border-radius: 4px; border: 1px solid currentColor; vertical-align: middle; }
.badge.void { color: var(--danger); }

.login { max-width: 22rem; margin: 12vh auto; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 2rem; }
.login h1 { font-size: 1.6rem; margin-bottom: 0; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr)); gap: .8rem; margin: 1rem 0 1.5rem; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: .9rem 1rem; display: flex; flex-direction: column; gap: .2rem; color: var(--muted); text-decoration: none; }
.card .num { font-size: 1.5rem; font-weight: 600; color: var(--text); font-variant-numeric: tabular-nums; }
.card .num.small { font-size: 1rem; }

/* tables */
.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; }
table { border-collapse: collapse; width: 100%; }
table.narrow { width: auto; min-width: 24rem; }
th, td { padding: .35rem .6rem; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); background: var(--title-row); white-space: nowrap; }
th.c { text-align: center; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.grid tbody tr:nth-child(even) { background: var(--row-alt); }
tfoot td { font-weight: 600; border-top: 2px solid var(--border); background: var(--title-row); }
tr.title td { font-weight: 600; }
tr.title.lvl1 td, tr.title.lvl2 td { background: var(--title-row); }
tr.void td { color: var(--void); text-decoration: line-through; }
tr.auto td { color: var(--muted); font-style: italic; }
td.credit { color: var(--danger); }
.entry-head td { background: var(--title-row); font-weight: 600; }
.report td { font-size: .9rem; }
.ledger h2 { margin-top: 1.25rem; }

.facts { display: grid; grid-template-columns: repeat(auto-fill, minmax(12rem, 1fr)); gap: .5rem 1.5rem; margin: 0 0 1rem; }
.facts .wide { grid-column: 1 / -1; }
.facts dt { font-size: .8rem; color: var(--muted); }
.facts dd { margin: 0; }

/* voucher entry */
table.entry td { padding: .25rem .3rem; border-bottom: 1px solid var(--border); }
table.entry input, table.entry select { width: 100%; padding: .25rem .35rem; }
.w-cuenta { min-width: 6.5rem; }
.w-anexo { min-width: 7rem; }
.w-imp { min-width: 7rem; }
.w-doc { min-width: 7rem; }
.w-glosa { min-width: 9rem; }
table.entry .desc { display: block; font-size: .78rem; color: var(--muted); max-width: 14rem; }
table.entry input:required:placeholder-shown, table.entry select:required:invalid { border-color: var(--warn); }

.actions-inline { display: flex; gap: .4rem; flex-wrap: wrap; }
.regbox { background: var(--surface); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: 6px;
  padding: .6rem .9rem; margin: 0 0 1rem; }
fieldset { border: 1px solid var(--border); border-radius: 6px; padding: .6rem .8rem; }
legend { color: var(--muted); font-size: .88rem; padding: 0 .3rem; }

.print-only { display: none; }
@media print {
  .top, .side, .no-print, .filters, .flash { display: none !important; }
  main.with-nav { margin: 0; padding: 0; }
  .print-only { display: block; }
  .table-wrap { border: 0; overflow: visible; }
  body { background: #fff; color: #000; font-size: 11px; }
  th { background: #eee !important; color: #000; }
  a { color: #000; text-decoration: none; }
}