.calc-intro {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--pp-ink2, #3d3d45);
  margin-bottom: 0.75rem;
}

.calc-verified {
  font-size: 0.82rem;
  color: var(--pp-ink3, #8b8b97);
  margin-bottom: 1.25rem;
}

.calc-shell {
  display: grid;
  grid-template-columns: minmax(280px, 1.35fr) minmax(220px, 0.8fr);
  gap: 1.25rem;
  align-items: start;
}

.calc-main {
  background: #fff;
  border-radius: 18px;
  padding: 1.1rem 1.15rem 1.4rem;
  border: 1px solid var(--pp-cream2, #ece8e0);
  box-shadow: var(--pp-shadow, 0 8px 28px rgba(20, 20, 30, 0.06));
}

.calc-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.calc-help {
  background: #faf8f4;
  border-radius: 12px;
  padding: 0.85rem 1rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.calc-help h3 {
  font-size: 0.95rem;
  margin: 0.6rem 0 0.25rem;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem 1rem;
}

.calc-grid label,
.calc-scale,
.calc-engine label {
  font-size: 0.82rem;
  font-weight: 650;
  display: block;
}

.calc-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.1rem;
  margin: 0.75rem 0 1rem;
  font-weight: 500;
}

.gpa-row {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr 0.7fr auto;
  gap: 0.5rem;
  align-items: end;
  margin-bottom: 0.5rem;
}

.calc-result {
  background: #0f3d3e;
  color: #f8f4e8;
  border-radius: 18px;
  padding: 1.1rem 1.15rem;
  position: sticky;
  top: 1rem;
}

.calc-result-label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.75;
  margin-bottom: 0.5rem;
}

.calc-result-body h2 {
  font-size: 1.65rem;
  margin: 0 0 0.35rem;
}

.calc-result-body p {
  margin: 0.25rem 0;
  font-size: 0.92rem;
}

.calc-result-body .muted {
  opacity: 0.8;
  font-size: 0.82rem;
}

@media (max-width: 900px) {
  .calc-shell,
  .calc-grid,
  .gpa-row {
    grid-template-columns: 1fr;
  }

  .calc-result {
    position: static;
  }
}