.mr-calc {
  max-width: 680px;
  margin: 0 auto;
  text-align: left;
}
.mr-calc-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.mr-calc label {
  flex: 1;
  min-width: 200px;
  display: flex;
  flex-direction: column;
  font-size: 14px;
}
.mr-calc input {
  padding: 10px;
  margin-top: 6px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 15px;
}
.mr-calc input::placeholder {
  color: #c2c2c2;
  font-style: italic;
  opacity: 1; /* Firefox baja la opacidad por defecto */
}
.mr-calc-btn {
  background: var(--brand-color, #222);
  color: #fff;
  border: 0;
  padding: 12px 28px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
}
.mr-calc-btn:hover {
  opacity: .9;
}
.mr-calc-result {
  margin-top: 18px;
  padding: 18px;
  background: #fff;
  border-left: 3px solid var(--brand-color, #222);
  font-size: 18px;
}
.mr-calc-disc {
  font-size: 12px;
  color: #878787;
  margin-top: 12px;
}
.mr-wa-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 12px 22px;
  background: #25d366;
  color: #fff !important;
  text-decoration: none !important;
  border-radius: 4px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
}
.mr-wa-btn:hover {
  background: #1ebe5a;
  color: #fff !important;
}
.mr-wa-btn svg {
  flex: 0 0 auto;
}