.calc-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px 44px;
  align-items: start;
}
.calc-head { display: flex; align-items: center; gap: 14px; }
.calc-head__icon {
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  border-radius: 12px;
  background: var(--brand-tint);
  display: flex;
  align-items: center;
  justify-content: center;
}
.calc-head__title { font-size: 1.375rem; font-weight: 700; line-height: 1.25; }
.calc-head__sub { margin-top: 4px; font-size: 0.9375rem; color: var(--muted-3); }
.steps {
  list-style: none;
  margin: 0;
  padding: 0; display: flex; flex-direction: column; gap: 12px; }
.step { display: flex; align-items: flex-start; gap: 14px; }
.step__num {
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  border-radius: 8px;
  background: var(--brand-tint);
  color: var(--brand);
  font-size: 0.875rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step__text {
  font-size: 1rem;
  line-height: 1.5;
  color: var(--ink-2);
  text-wrap: pretty;
}
.preview {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px;
  background: var(--surface-alt);
  border: 1px solid #E7EDF6;
  border-radius: var(--radius);
}
.preview__label {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--muted-3);
}
.preview img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  background: var(--surface);
}
@media (max-width: 1349px) {
  .calc-head { align-items: flex-start; }
  .calc-head__icon { margin-top: calc((22px * 1.25 - 22px) / 2); }
}

@media (max-width: 1000px) {
  .calc-grid { grid-template-columns: minmax(0, 1fr); gap: 26px; }
}

.calc-grid__main { display: flex; flex-direction: column; gap: 20px; }
.calc-grid__btn { align-self: flex-start; min-height: 0; padding: 13px 22px; }
.step__link { font-weight: 500; }
.preview { margin: 0; }