* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  background: #f4f5f7;
  color: #1a1a2e;
  max-width: 640px;
  margin-inline: auto;
  padding: 16px;
}
h1 { font-size: 1.4rem; }
h2 { font-size: 1.1rem; }
button {
  padding: 10px 14px;
  border: none;
  border-radius: 8px;
  background: #2d6cdf;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
}
button.volver, #btn-categorias, #btn-logout { background: #e2e6ee; color: #1a1a2e; }
input, select {
  padding: 10px;
  border: 1px solid #cbd2e0;
  border-radius: 8px;
  font-size: 1rem;
  width: 100%;
}
label { display: block; margin-bottom: 10px; }
#aviso {
  background: #ffd8d8;
  color: #8a1c1c;
  padding: 10px;
  border-radius: 8px;
  margin-bottom: 12px;
}
.barra, .fila-titulo {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.lista { list-style: none; padding: 0; margin: 16px 0; }
.banco, .tx {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 12px;
  background: #fff;
  border-radius: 10px;
  margin-bottom: 8px;
  box-shadow: 0 1px 2px rgba(0,0,0,.06);
}
.banco { justify-content: space-between; cursor: pointer; }
.banco-saldo { font-weight: 700; }
.tx-desc { flex: 1; }
.tx-fecha { color: #6b7280; font-size: .85rem; }
.tx-ingreso .tx-monto { color: #187a3e; }
.tx-gasto .tx-monto { color: #b4232a; }
.saldo-grande { font-size: 1.2rem; }
.form-linea { display: flex; gap: 8px; }
.form-linea input { flex: 1; }
.form-tx {
  display: grid;
  gap: 8px;
  background: #fff;
  padding: 12px;
  border-radius: 10px;
  margin-bottom: 16px;
}
.tx-eliminar {
  background: transparent;
  color: #b4232a;
  padding: 4px 8px;
}
/* Clientes y pagos */
.subtitulo { margin-top: 1.5rem; }
.cliente { display: flex; justify-content: space-between; gap: 0.5rem; cursor: pointer; }
.cliente-telefono { color: #666; }
.campo-archivo { display: block; }
.pago { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; }
.pago-info { display: flex; flex-direction: column; gap: 0.15rem; }
.pago-montos { font-variant-numeric: tabular-nums; }
.pago-op { color: #666; font-size: 0.85em; }
.pago-acciones { display: flex; align-items: center; gap: 0.5rem; }
.pago-ver, .pago-adjuntar { cursor: pointer; text-decoration: underline; font-size: 0.9em; }