.wa-modal {
  position: fixed;
  inset: 0;
  z-index: 180;
  display: grid;
  place-items: center;
  padding: 16px;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.wa-modal[hidden] {
  display: none;
}
.wa-modal.on {
  opacity: 1;
}
.wa-caja {
  width: min(400px, 100%);
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 24px;
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.6);
  transform: translateY(16px) scale(0.98);
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.wa-modal.on .wa-caja {
  transform: none;
}
.wa-caja h3 {
  font-size: 21px;
  margin: 0 0 6px;
}
.wa-caja p {
  margin: 0 0 16px;
  color: var(--ink-2);
  font-size: 15px;
}
.wa-caja label {
  display: grid;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
}
.wa-caja input {
  font: inherit;
  font-size: 17px;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  min-height: 48px;
  width: 100%;
}
.wa-caja input[aria-invalid="true"] {
  border-color: #d93025;
}
.wa-error {
  min-height: 20px;
  margin: 6px 0 0;
  color: #d93025;
  font-size: 13px;
  font-weight: 600;
}
.wa-acciones {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}
.wa-acciones .btn {
  flex: 1;
}
.wa-acciones .wa-ir {
  background: #1fa855;
  border-color: #1fa855;
  color: #fff;
}
@media (prefers-reduced-motion: reduce) {
  .wa-modal,
  .wa-caja {
    transition: none;
  }
}