.calculator-page {
  --calculator-ink: #10231b;
  --calculator-green: #0b5f3b;
  --calculator-mint: #e4f1e9;
  --calculator-line: rgba(16, 35, 27, 0.14);
}

.calculator-hero {
  align-items: stretch;
}

.calculator-hero-result {
  align-self: stretch;
  background: var(--calculator-ink);
  color: #fff;
  padding: clamp(24px, 4vw, 44px);
  display: grid;
  align-content: center;
  gap: 20px;
  box-shadow: 16px 16px 0 rgba(11, 95, 59, 0.12);
}

.calculator-hero-result > span,
.calculator-hero-result dt {
  color: rgba(255, 255, 255, 0.66);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.calculator-hero-result > strong {
  color: #fff;
  font-size: clamp(52px, 7vw, 82px);
  letter-spacing: -0.06em;
  line-height: 0.9;
}

.calculator-hero-result > strong small {
  display: block;
  margin-top: 14px;
  color: #bfe2cf;
  font-size: 14px;
  letter-spacing: 0;
}

.calculator-hero-result dl {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.calculator-hero-result dl div {
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.calculator-hero-result dl div:nth-child(odd) {
  padding-right: 14px;
  border-right: 1px solid rgba(255, 255, 255, 0.18);
}

.calculator-hero-result dl div:nth-child(even) {
  padding-left: 14px;
}

.calculator-hero-result dd {
  margin: 5px 0 0;
  font-size: 20px;
  font-weight: 850;
}

.calculator-hero-result p {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 12px;
  line-height: 1.6;
}

.calculator-shell {
  max-width: 1260px;
  margin: 0 auto clamp(72px, 10vw, 130px);
  padding: clamp(38px, 6vw, 72px) clamp(18px, 4vw, 48px);
  background: #f6f2e9;
}

.calculator-intro {
  max-width: 780px;
  margin-bottom: 32px;
}

.calculator-intro h2 {
  margin: 5px 0 12px;
  font-size: clamp(30px, 4.5vw, 52px);
  line-height: 1.04;
  letter-spacing: -0.045em;
}

.calculator-intro > p:last-child {
  color: #526059;
  line-height: 1.7;
}

.calculator-branch-context {
  width: fit-content;
  margin: 18px 0 0;
  padding: 10px 12px;
  border-left: 4px solid var(--calculator-green);
  background: var(--calculator-mint);
  color: var(--calculator-ink);
  font-size: 13px;
  font-weight: 750;
  line-height: 1.5;
}

.calculator-workspace {
  display: grid;
  grid-template-columns: minmax(320px, 0.78fr) minmax(480px, 1.22fr);
  gap: 22px;
  align-items: start;
}

.calculator-form,
.calculator-results {
  background: #fff;
  border: 1px solid var(--calculator-line);
  box-shadow: 0 18px 50px rgba(16, 35, 27, 0.07);
}

.calculator-form {
  padding: clamp(20px, 3vw, 32px);
}

.calculator-form fieldset {
  border: 0;
  margin: 0;
  padding: 0 0 24px;
}

.calculator-form fieldset + fieldset {
  padding-top: 24px;
  border-top: 1px solid var(--calculator-line);
}

.calculator-form legend {
  width: 100%;
  margin-bottom: 18px;
  color: var(--calculator-green);
  font-weight: 900;
  font-size: 14px;
}

.calculator-form label {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
  color: var(--calculator-ink);
  font-size: 14px;
  font-weight: 780;
}

.calculator-form label > span:first-child small {
  display: block;
  margin-top: 3px;
  color: #66716c;
  font-weight: 500;
  line-height: 1.45;
}

.input-unit {
  display: grid;
  grid-template-columns: 1fr 52px;
  border: 1px solid #b9c1bd;
  background: #fff;
}

.input-unit:focus-within {
  border-color: var(--calculator-green);
  box-shadow: 0 0 0 3px rgba(11, 95, 59, 0.13);
}

.input-unit input {
  min-width: 0;
  border: 0;
  padding: 13px 14px;
  color: var(--calculator-ink);
  font: inherit;
  font-size: 17px;
  outline: 0;
}

.input-unit b {
  display: grid;
  place-items: center;
  border-left: 1px solid #d5dad7;
  background: #f5f6f5;
  color: #526059;
}

.calculator-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.calculator-reset {
  min-height: 44px;
  border: 0;
  background: transparent;
  color: var(--calculator-green);
  font: inherit;
  font-size: 13px;
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 4px;
  cursor: pointer;
}

.calculator-error {
  margin: 18px 0 0;
  padding: 12px 14px;
  border-left: 4px solid #a52714;
  background: #fce8e6;
  color: #6b1a0e;
  line-height: 1.5;
}

.calculator-privacy {
  margin: 18px 0 0;
  color: #65706a;
  font-size: 11px;
  line-height: 1.55;
}

.calculator-results {
  overflow: hidden;
}

.result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 26px;
  border-bottom: 1px solid var(--calculator-line);
}

.result-head span,
.result-primary > span,
.result-grid article > span,
.result-next span {
  color: var(--calculator-green);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.result-head h2 {
  margin: 4px 0 0;
  font-size: 22px;
}

.result-head > b {
  padding: 7px 10px;
  background: var(--calculator-mint);
  color: var(--calculator-green);
  font-size: 11px;
  text-transform: uppercase;
}

.result-primary {
  padding: clamp(28px, 5vw, 48px) 26px;
  background: var(--calculator-green);
  color: #fff;
}

.result-primary > span {
  color: #cbe7d8;
}

.result-primary strong {
  display: block;
  margin: 9px 0;
  color: #fff;
  font-size: clamp(50px, 8vw, 80px);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.result-primary p {
  margin: 0;
  color: rgba(255, 255, 255, 0.74);
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.result-grid article {
  min-width: 0;
  padding: 22px 24px;
  border-bottom: 1px solid var(--calculator-line);
}

.result-grid article:nth-child(odd) {
  border-right: 1px solid var(--calculator-line);
}

.result-grid strong {
  display: block;
  margin: 8px 0 5px;
  color: var(--calculator-ink);
  font-size: clamp(25px, 4vw, 34px);
  letter-spacing: -0.04em;
}

.result-grid small {
  display: block;
  color: #66716c;
  line-height: 1.45;
}

.sensitivity {
  padding: 26px;
  border-bottom: 1px solid var(--calculator-line);
}

.sensitivity h3 {
  margin: 0 0 4px;
  font-size: 18px;
}

.sensitivity > div:first-child p {
  margin: 0 0 16px;
  color: #69736e;
  font-size: 12px;
}

.sensitivity-table {
  border: 1px solid var(--calculator-line);
}

.sensitivity-table > div {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr 0.8fr;
  gap: 10px;
  padding: 10px 12px;
}

.sensitivity-table > div + div {
  border-top: 1px solid var(--calculator-line);
}

.sensitivity-table > div:first-child {
  background: #f3f5f3;
  color: #65706a;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

.sensitivity-table strong,
.sensitivity-table b {
  color: var(--calculator-ink);
  text-align: right;
}

.result-next {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 26px;
  background: #f7f3ea;
}

.result-next h3 {
  margin: 5px 0 6px;
  font-size: 21px;
}

.result-next p {
  margin: 0;
  color: #59645e;
  line-height: 1.55;
}

.result-next > div:last-child {
  display: grid;
  gap: 10px;
  justify-items: start;
}

.result-next .text-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
}

.calculator-guide-layout {
  margin-top: 0;
}

.formula-steps {
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.formula-steps li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 18px;
  padding: 22px;
  border: 1px solid var(--calculator-line);
  background: #fff;
}

.formula-steps li > b {
  color: var(--calculator-green);
  font-size: 13px;
}

.formula-steps h3 {
  margin: 0 0 5px;
}

.formula-steps p {
  margin: 0 0 12px;
  color: #5f6b65;
}

.formula-steps code {
  display: inline-block;
  max-width: 100%;
  padding: 8px 10px;
  overflow-wrap: anywhere;
  background: #edf3ef;
  color: var(--calculator-green);
  font-size: 13px;
  font-weight: 800;
}

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

  .calculator-form {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .calculator-form fieldset,
  .calculator-form fieldset + fieldset {
    padding: 0;
    border: 0;
  }

  .calculator-actions,
  .calculator-error,
  .calculator-privacy {
    grid-column: 1 / -1;
  }
}

@media (max-width: 720px) {
  .calculator-hero-result {
    box-shadow: 8px 8px 0 rgba(11, 95, 59, 0.12);
  }

  .calculator-shell {
    margin-inline: 0;
    padding-inline: 14px;
  }

  .calculator-form {
    grid-template-columns: 1fr;
  }

  .calculator-form fieldset + fieldset {
    padding-top: 22px;
    border-top: 1px solid var(--calculator-line);
  }

  .result-head,
  .result-primary,
  .sensitivity,
  .result-next {
    padding-inline: 18px;
  }

  .result-grid {
    grid-template-columns: 1fr;
  }

  .result-grid article:nth-child(odd) {
    border-right: 0;
  }

  .result-next {
    grid-template-columns: 1fr;
  }

  .sensitivity-table {
    font-size: 12px;
  }
}

@media (max-width: 390px) {
  .calculator-hero-result dl {
    grid-template-columns: 1fr;
  }

  .calculator-hero-result dl div:nth-child(odd),
  .calculator-hero-result dl div:nth-child(even) {
    padding-inline: 0;
    border-right: 0;
  }

  .calculator-actions .button {
    width: 100%;
  }

  .formula-steps li {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}