:root {
  --bg: #111114;
  --panel: #1b1b20;
  --line: #2c2c34;
  --text: #ececec;
  --muted: #9a9aa3;
  --accent: #c4a574;
  --open: #d4a017;
  --paid: #3d9a6a;
  --overdue: #c45c4a;
  --draft: #7a7a84;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

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

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

header h1 { font-size: 18px; margin: 0; font-weight: 600; }

nav { display: flex; gap: 8px; flex-wrap: wrap; }
nav button, .btn, button {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
}
nav button.active, .btn-primary, button[type="submit"] {
  background: var(--accent);
  color: #161616;
  border-color: var(--accent);
}
.btn-ghost { border-color: var(--line); }

main { padding: 24px; max-width: 1280px; margin: 0 auto; }

.kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}
.kpi {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 14px 16px;
}
.kpi .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
.kpi .value { font-size: 22px; margin-top: 6px; font-variant-numeric: tabular-nums; }

.toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  align-items: center;
}
input, select {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--line);
  padding: 6px 10px;
  border-radius: 4px;
  font-size: 13px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
th, td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th { color: var(--muted); font-weight: 500; font-size: 12px; }
.right { text-align: right; font-variant-numeric: tabular-nums; }

.badge {
  display: inline-block;
  font-size: 11px;
  padding: 2px 6px;
  border: 1px solid var(--line);
}
.badge.paid, .badge.linked { color: var(--paid); border-color: var(--paid); }
.badge.locked, .badge.open { color: var(--open); border-color: var(--open); }
.badge.overdue, .badge.unmatched, .badge.dunned { color: var(--overdue); border-color: var(--overdue); }
.badge.suggested, .badge.partiallyPaid, .badge.ambiguous { color: var(--accent); border-color: var(--accent); }
.badge.draft, .badge.cancelled, .badge.unknown { color: var(--draft); border-color: var(--draft); }

.muted { color: var(--muted); font-size: 13px; }
.error { color: var(--overdue); }
.hidden { display: none !important; }

.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
}
.login-card {
  width: min(360px, 92vw);
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 28px;
  display: grid;
  gap: 12px;
}
.login-card h1 { margin: 0; font-size: 20px; }
.login-card label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
.login-card input { width: 100%; }

.modal-back {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: grid;
  place-items: center;
  padding: 16px;
}
.modal {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 20px;
  width: min(420px, 100%);
  display: grid;
  gap: 10px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 16px;
  margin-bottom: 16px;
}

.match-grid {
  display: grid;
  gap: 16px;
}
@media (min-width: 900px) {
  .match-grid { grid-template-columns: 1fr 1fr; }
}