/* Carta pergamino */
.carta {
  margin: 40px auto;
  max-width: 740px;
  padding: 40px 55px;
  background: #fffef0;
  color: #3b2a1a;
  line-height: 1.7;
  box-shadow:
    2px 3px 20px rgba(0,0,0,0.6),
    0 0 60px #8a4d0f inset;
  filter: url(#wavy2); /* aplica bordes irregulares */
  position: relative;
  border-radius: 4px;
}

/* textura ligera interior */
.carta::before {
  content: "";
  position: absolute;
  inset: 18px;
  background:
    repeating-linear-gradient(
      0deg,
      rgba(0,0,0,0.04),
      rgba(0,0,0,0.04) 1px,
      transparent 2px,
      transparent 4px
    );
  mix-blend-mode: multiply;
  opacity: 0.6;
  pointer-events: none;
  border-radius: 4px;
}