.controls-section {
  flex: 1;
}

.preview-section {
  flex: 1.5;
}

.invoice-paper {
  background-color: white;
  min-height: 297mm; /* A4 Paper ratio */
  width: 100%;
  max-width: 210mm;
  margin: 0 auto;
  padding: 40px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  color: #1a1a1a;
}

/* Light theme overrides for PDF */
.color-text { color: #1a1a1a !important; }
.color-text-dim { color: #666 !important; }
.border-border-light { border-color: #e5e7eb !important; }

.invoice-title {
  font-size: 2rem;
  font-weight: 900;
  margin: 0;
  color: #1a1a1a;
}

.invoice-table th {
  border-bottom: 2px solid #1a1a1a;
  color: #666;
  font-weight: bold;
}

@media screen and (max-width: 768px) {
  .invoice-paper {
    padding: 20px;
    min-height: auto;
  }
}