body {
  background: linear-gradient(180deg, #f4f7fb 0%, #eef2f7 100%);
  min-height: 100vh;
}

.app-shell {
  max-width: 980px;
}

#totalAmount {
  font-weight: 700;
  letter-spacing: -0.02em;
}

thead th {
  background-color: #f8f9fb;
  color: #4a5568;
  font-weight: 600;
}