body {
  min-height: 100vh;
  background:
    radial-gradient(circle at top, rgba(13, 110, 253, 0.12), transparent 35%),
    #f5f7fb;
}
.card {
  border: 0;
  border-radius: 1rem;
}
.form-control,
.form-select,
.btn {
  border-radius: 0.7rem;
}
.version-badge {
  display: inline-block;
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  background: #e7f1ff;
  color: #084298;
  font-size: 0.875rem;
  font-weight: 600;
}
.item-card {
  box-shadow: 0 0.25rem 1rem rgba(15, 23, 42, 0.06);
}
.total-box {
  background: #f8f9fa;
  border: 1px solid #dee2e6;
  border-radius: 0.7rem;
  padding: 0.9rem 1rem;
}
textarea { line-height: 1.55; }