.calculator-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 420px);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  padding: clamp(54px, 8vw, 98px) clamp(18px, 5vw, 72px);
  background:
    linear-gradient(110deg, rgba(247, 245, 239, .98) 0%, rgba(247, 245, 239, .92) 55%, rgba(170, 184, 170, .42) 100%);
}

.calculator-hero h1 {
  max-width: 900px;
  font-size: clamp(42px, 5.4vw, 72px);
  overflow-wrap: break-word;
}

.calculator-stat-panel {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.calculator-stat-panel div {
  min-height: 126px;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: 0 12px 30px rgba(16, 18, 20, .1);
}

.calculator-stat-panel dt {
  color: var(--green);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(28px, 3.2vw, 42px);
  line-height: .95;
}

.calculator-stat-panel dd {
  margin: 10px 0 0;
  color: var(--muted);
  font-weight: 800;
  line-height: 1.35;
}

.calculator-tool {
  background: var(--white);
}

.calculator-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, .95fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.spend-panel,
.smp-panel,
.results-panel {
  border: 1px solid var(--line);
  background: var(--paper);
}

.spend-panel,
.smp-panel {
  padding: clamp(24px, 4vw, 34px);
}

.slider-list {
  display: grid;
  gap: 24px;
  margin-top: 28px;
}

.slider-row {
  display: grid;
  gap: 10px;
}

.slider-row label,
.smp-cost-control label {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--ink);
  font-weight: 800;
}

.slider-row output,
.smp-cost-control output {
  color: var(--copper);
  white-space: nowrap;
}

.slider-row input,
.smp-cost-control input {
  width: 100%;
  accent-color: var(--green);
}

.monthly-total {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  margin-top: 30px;
  padding: 22px;
  border: 1px solid var(--line);
  background: var(--white);
}

.monthly-total span {
  color: var(--muted);
  font-weight: 800;
}

.monthly-total strong {
  color: var(--green);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1;
}

.smp-panel {
  display: grid;
  gap: 20px;
}

.smp-panel ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.smp-cost-control {
  display: grid;
  gap: 10px;
  padding: 20px;
  border: 1px solid var(--line);
  background: var(--white);
}

.comparison-section {
  background: var(--paper);
}

.results-panel {
  overflow: hidden;
}

.comparison-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--line);
}

.comparison-tabs button {
  min-height: 58px;
  border: 0;
  border-right: 1px solid var(--line);
  background: var(--white);
  color: var(--muted);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.comparison-tabs button:last-child {
  border-right: 0;
}

.comparison-tabs button.is-active {
  background: var(--green);
  color: var(--white);
}

.comparison-body {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: clamp(24px, 4vw, 34px);
}

.comparison-card {
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--white);
}

.comparison-card span {
  display: block;
  margin-bottom: 14px;
  color: var(--copper);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.comparison-card strong {
  color: var(--green);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(36px, 5vw, 62px);
  line-height: 1;
}

.saving-strip {
  padding: clamp(24px, 4vw, 34px);
  border-top: 1px solid var(--line);
  background: var(--white);
}

.saving-strip strong {
  display: block;
  color: var(--green);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(42px, 7vw, 82px);
  line-height: 1;
}

.saving-strip p {
  max-width: 860px;
  color: var(--muted);
}

@media (max-width: 980px) {
  .calculator-hero,
  .calculator-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .calculator-hero h1 {
    font-size: 42px;
  }

  .calculator-stat-panel,
  .comparison-body {
    grid-template-columns: 1fr;
  }

  .comparison-tabs {
    grid-template-columns: repeat(2, 1fr);
  }

  .monthly-total {
    grid-template-columns: 1fr;
  }
}