:root {
  color-scheme: dark;
  --bg: #0f172a;
  --panel: #111827;
  --card: #1f2937;
  --muted: #94a3b8;
  --text: #f8fafc;
  --border: #334155;
  --accent: #22c55e;
  --warn: #f59e0b;
  --danger: #ef4444;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, system-ui, sans-serif; background: var(--bg); color: var(--text); }
button, input, select { font: inherit; }
button { border: 0; border-radius: 12px; padding: 0.85rem 1rem; background: var(--accent); color: #052e16; font-weight: 700; }
button.secondary { background: #334155; color: var(--text); }
input, select { width: 100%; background: #0b1220; color: var(--text); border: 1px solid var(--border); border-radius: 12px; padding: 0.85rem; }
label span { display: block; margin-bottom: 0.35rem; color: var(--muted); font-size: 0.9rem; }
.topbar { position: sticky; top: 0; z-index: 10; display: flex; justify-content: space-between; align-items: center; padding: 1rem; background: rgba(15, 23, 42, 0.96); border-bottom: 1px solid var(--border); }
.container { padding: 1rem; max-width: 1100px; margin: 0 auto; }
.panel, .login-card { background: var(--panel); border: 1px solid var(--border); border-radius: 18px; padding: 1rem; }
.login-body { min-height: 100vh; display: grid; place-items: center; padding: 1rem; }
.login-card { width: min(100%, 420px); }
.cards-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; }
.scope-switch { display: inline-flex; gap: 0.5rem; background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 0.4rem; width: fit-content; }
.scope-btn { background: transparent; color: var(--muted); border: 1px solid transparent; }
.scope-btn.active { background: var(--card); color: var(--text); border-color: var(--border); }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 0.9rem; display: flex; flex-direction: column; gap: 0.5rem; }
.stat-card.success strong { color: #86efac; }
.stat-card.warning strong { color: #fcd34d; }
.stat-card.danger strong { color: #fca5a5; }
.stat-card span, .muted { color: var(--muted); }
.stack { display: flex; flex-direction: column; }
.gap-xs { gap: 0.3rem; }
.gap-sm { gap: 0.6rem; }
.gap-md { gap: 1rem; }
.gap-lg { gap: 1.25rem; }
.panel-header { display: flex; justify-content: space-between; align-items: start; gap: 1rem; }
.filters-grid { display: grid; grid-template-columns: 1fr; gap: 0.75rem; }
.actions-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.payment-card { width: 100%; background: var(--card); color: var(--text); border: 1px solid var(--border); border-radius: 16px; text-align: left; display: flex; flex-direction: column; gap: 0.6rem; }
.payment-card-top, .payment-values, .payment-dates, .split-row { display: flex; justify-content: space-between; gap: 0.75rem; align-items: center; }
.status { padding: 0.25rem 0.55rem; border-radius: 999px; font-size: 0.8rem; background: #334155; }
.status.received, .status.confirmed { background: rgba(34, 197, 94, 0.2); color: #86efac; }
.status.pending { background: rgba(245, 158, 11, 0.18); color: #fcd34d; }
.status.overdue { background: rgba(239, 68, 68, 0.18); color: #fca5a5; }
.status.cancelled { background: rgba(148, 163, 184, 0.18); color: #cbd5e1; }
.detail-grid { display: grid; grid-template-columns: 1fr; gap: 0.75rem; }
.detail-grid div { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 0.75rem; display: flex; flex-direction: column; gap: 0.35rem; }
.alert.error, .empty-state { background: rgba(239, 68, 68, 0.12); border: 1px solid rgba(239, 68, 68, 0.35); color: #fecaca; border-radius: 12px; padding: 0.85rem; }
.hidden { display: none; }
@media (min-width: 720px) {
  .cards-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .filters-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .detail-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}