:root {
  --ink: #17211f;
  --teal: #0f3d38;
  --teal-mid: #1a5c54;
  --rule: #d7ddd8;
  --paper: #f4f6f2;
  --card: #fcfdfb;
  --muted: #5c6a66;
  --due: #8d2f2f;
  --ok: #1b6b4a;
  --line: #d7ddd8;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
}
a { color: inherit; }
.band {
  background: var(--teal);
  color: #f3f7f5;
  position: sticky;
  top: 0;
  z-index: 8;
}
.band-inner, .wrap { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.band-inner {
  min-height: 70px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.brand { text-decoration: none; }
.brand strong { font-family: "IBM Plex Serif", Georgia, serif; font-size: 22px; font-weight: 600; }
.brand span { display: block; font-size: 12px; opacity: 0.75; }
.band nav { display: flex; gap: 16px; align-items: center; font-size: 14px; }
.band nav a { text-decoration: none; }
.btn, button { font: inherit; cursor: pointer; }
.btn {
  display: inline-block;
  background: #e7f2ee;
  color: var(--teal);
  text-decoration: none;
  border: 0;
  padding: 11px 18px;
  font-weight: 600;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(15, 61, 56, 0.2);
}
.btn:hover { background: #d5ebe3; }
.btn-quiet {
  background: transparent;
  color: var(--teal);
  box-shadow: none;
  border: 1px solid var(--rule);
}
.hero { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 36px; padding: 48px 24px 28px; align-items: start; }
h1, h2, h3 { font-family: "IBM Plex Serif", Georgia, serif; font-weight: 500; }
h1 { font-size: 42px; line-height: 1.12; margin: 8px 0 14px; }
h2 { font-size: 28px; margin: 6px 0 10px; }
.kicker { letter-spacing: 0.14em; text-transform: uppercase; font-size: 12px; color: var(--teal); font-weight: 600; }
.kicker.light { color: #b7d4cc; }
.lead { font-size: 18px; color: var(--muted); line-height: 1.55; max-width: 38rem; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 20px 0 8px; }
.hero-facts {
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}
.hero-facts strong { display: block; color: var(--ink); font-family: "IBM Plex Mono", ui-monospace, monospace; }
.hero-stack { position: relative; min-height: 420px; }
.stack-item { position: absolute; inset: auto 0 0 8%; width: 86%; }
.stack-0 { z-index: 3; transform: rotate(-2deg); }
.stack-1 { z-index: 2; transform: translate(28px, -54px) rotate(3deg); opacity: 0.92; }
.stack-2 { z-index: 1; transform: translate(-18px, -108px) rotate(-5deg); opacity: 0.78; }

.voucher {
  background: #fffef8;
  border: 1px solid #c9d4ce;
  box-shadow: 0 10px 28px rgba(23, 33, 31, 0.12);
  padding: 14px 16px 12px;
  font-size: 12px;
  color: var(--ink);
}
.voucher.compact { font-size: 11px; }
.voucher-head {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 8px;
  align-items: start;
  border-bottom: 2px solid var(--teal);
  padding-bottom: 8px;
}
.voucher-emisor { display: grid; gap: 2px; }
.voucher-emisor strong { font-family: "IBM Plex Serif", Georgia, serif; font-size: 15px; }
.voucher-letra {
  width: 58px;
  border: 2px solid var(--teal);
  text-align: center;
  padding: 4px 0;
}
.voucher-letra b { display: block; font-size: 22px; line-height: 1; }
.voucher-letra span, .voucher-letra small { display: block; font-size: 9px; letter-spacing: 0.08em; }
.voucher-num { text-align: right; font-family: "IBM Plex Mono", ui-monospace, monospace; }
.voucher-num strong { display: block; font-size: 13px; }
.voucher-party {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 10px;
  padding: 10px 0;
}
.voucher-party span { display: block; color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; }
.voucher-party strong, .voucher-party em { display: block; font-style: normal; }
.voucher-lines { width: 100%; border-collapse: collapse; }
.voucher-lines th, .voucher-lines td { padding: 5px 0; border-bottom: 1px dashed var(--rule); text-align: left; }
.voucher-lines th { font-size: 10px; text-transform: uppercase; color: var(--muted); }
.voucher-foot {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
  align-items: end;
}
.voucher-arca {
  background: #eef5f2;
  padding: 8px 10px;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  min-width: 55%;
}
.voucher-arca span { display: block; font-size: 10px; color: var(--teal); letter-spacing: 0.1em; text-transform: uppercase; }
.voucher-tot { text-align: right; }
.voucher-tot strong { display: block; font-size: 18px; font-family: "IBM Plex Mono", ui-monospace, monospace; }
.due-late, .voucher.overdue .voucher-letra { color: var(--due); border-color: var(--due); }

.section { padding: 28px 0 12px; }
.section-lead, .note { color: var(--muted); max-width: 42rem; line-height: 1.5; }
.type-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin: 16px 0; }
.type-tabs button, .type-filters button {
  background: var(--card);
  border: 1px solid var(--rule);
  padding: 8px 14px;
  border-radius: 4px;
}
.type-tabs button.on, .type-filters button.on {
  background: var(--teal);
  color: #f3f7f5;
  border-color: var(--teal);
}
.type-stage {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 24px;
  align-items: start;
}
.type-copy ul { padding-left: 18px; color: var(--muted); line-height: 1.7; }
.due-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 16px;
}
.due-card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--teal);
  padding: 16px;
}
.due-card.late { border-top-color: var(--due); }
.due-when { margin: 0; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--teal); font-weight: 600; }
.due-card.late .due-when { color: var(--due); }
.due-card h3 { font-size: 16px; margin: 8px 0 4px; }
.due-card .num { font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: 18px; margin: 8px 0; }
.due-note { color: var(--muted); font-size: 13px; margin: 0; }
.arca-band { background: var(--teal); color: #f3f7f5; padding: 40px 0; }
.arca-band h2 { color: #fff; }
.arca-band p { color: #cde0db; max-width: 36rem; }
.arca-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 28px; align-items: start; }
.arca-dl { display: grid; gap: 10px; margin: 18px 0 0; }
.arca-dl dt { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: #b7d4cc; }
.arca-dl dd { margin: 2px 0 0; }
.path { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.path article, .cols article {
  background: var(--card);
  border-top: 3px solid var(--teal);
  padding: 20px;
}
.path span {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  color: var(--teal);
  font-size: 13px;
}
.path h3 { margin: 8px 0; font-size: 18px; }
.path p { color: var(--muted); line-height: 1.45; }
.num, td.amount, .totals strong { font-family: "IBM Plex Mono", ui-monospace, monospace; font-variant-numeric: tabular-nums; }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: var(--card); }
th, td { padding: 12px 10px; border-bottom: 1px solid var(--rule); text-align: left; vertical-align: top; }
th { font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
tbody tr:hover { background: #f8faf9; }
td.amount, th.amount { text-align: right; }
td small { color: var(--muted); }
.state { font-size: 12px; font-weight: 600; }
.state.cobrar { color: var(--due); }
.state.emitido { color: var(--teal); }
.state.cobrado { color: var(--ok); }
.state.borrador { color: var(--muted); }
tr.late td { background: #fbf4f4; }
footer { padding: 28px 0 40px; color: var(--muted); font-size: 14px; }

.panel-body { background: #eef2ee; }
.book { max-width: 1240px; margin: 0 auto; padding: 20px 24px 48px; }
.toolbar { display: flex; justify-content: space-between; align-items: end; gap: 16px; }
.toolbar h1 { font-size: 32px; margin: 0; }
.search-box { font-size: 12px; color: var(--muted); min-width: 240px; }
.search-box input { margin-top: 4px; }
.totals { display: flex; gap: 8px; margin: 16px 0 8px; flex-wrap: wrap; }
.totals button, .totals div {
  background: var(--card);
  border: 1px solid var(--rule);
  padding: 8px 12px;
  min-width: 120px;
  text-align: left;
}
.totals strong { display: block; font-size: 18px; }
.totals .on { border-color: var(--teal); background: #e7f2ee; }
.totals .warn { border-color: #e3c0c0; color: var(--due); }
.type-filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: 16px;
  align-items: start;
}
.list { overflow: auto; background: var(--card); border: 1px solid var(--rule); }
.ledger { width: 100%; min-width: 720px; }
.ledger td:last-child, .ledger th:last-child { white-space: nowrap; }
.ledger td.num { font-size: 12px; }
.row { cursor: pointer; }
.row.on { background: #eef5f2; }
.sheet {
  background: white;
  border: 1px solid var(--rule);
  padding: 16px;
  display: grid;
  gap: 12px;
}
.sheet .voucher { box-shadow: none; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
label { display: block; font-size: 12px; color: var(--muted); margin-top: 8px; }
input, select, textarea {
  width: 100%;
  font: inherit;
  padding: 8px;
  border: 1px solid var(--rule);
  background: white;
  color: var(--ink);
}
textarea { min-height: 70px; resize: vertical; }
.actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.ghost {
  background: transparent;
  border: 1px solid var(--rule);
  padding: 8px 12px;
}
.ghost.danger { color: var(--due); border-color: #e3c0c0; }
.create {
  display: none;
  background: white;
  border: 1px solid var(--rule);
  padding: 14px;
  margin-bottom: 12px;
}
.create.open { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.create .full, .create button { grid-column: 1 / -1; }
.create button { justify-self: start; }
.arca-box {
  background: #f3f7e8;
  border: 1px solid #c9d6a8;
  padding: 12px;
}
.arca-box.done { background: #eef5f2; border-color: #b7d4cc; }
.arca-box h3 { margin: 0 0 6px; font-size: 16px; }
.arca-box p { margin: 0 0 8px; font-size: 13px; color: var(--muted); }
.timeline { border-top: 1px solid var(--rule); padding-top: 8px; }
.timeline h3 { font-size: 14px; margin: 0 0 8px; }
.timeline p { margin: 6px 0; font-size: 13px; }
.timeline time { display: block; color: var(--teal); font-size: 11px; font-weight: 600; }

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #1b2a27;
  color: white;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  z-index: 9999;
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

@media (max-width: 980px) {
  .hero, .type-stage, .arca-grid, .path, .workspace, .create.open, .grid, .voucher-head, .voucher-party {
    grid-template-columns: 1fr;
  }
  .hero-stack { min-height: 320px; }
  .stack-item { position: relative; inset: auto; width: 100%; margin-bottom: 12px; }
  .stack-0, .stack-1, .stack-2 { transform: none; opacity: 1; }
  h1 { font-size: 32px; }
  .band-inner, .toolbar { flex-direction: column; align-items: start; }
  .band nav { flex-wrap: wrap; }
}