/* RU calculator refinement: compact working area and stable result geometry. */
.calculator-shell {
  padding: clamp(2.5rem, 3.25vw, 3.5rem) 6vw;
}

.calculator-shell .calculator {
  grid-template-columns: minmax(0, 1.15fr) minmax(28rem, .85fr);
  gap: clamp(.75rem, 1.25vw, 1.125rem);
  align-items: stretch;
}

.calculator-shell .calculator form,
.calculator-shell .calculator-result {
  box-sizing: border-box;
  height: clamp(34rem, 64.8svh, 36.5rem);
  min-height: 0;
  padding: clamp(1.5rem, 2.2vw, 2rem);
}

.calculator-shell .calculator h2 {
  font-size: clamp(1.75rem, 2.35vw, 2.25rem);
  margin-bottom: 1.25rem;
}

.calculator-shell .field-grid {
  gap: 1rem 1.5rem;
  margin-bottom: 2rem;
}

.calculator-shell .calculator input,
.calculator-shell .calculator select {
  margin-top: .375rem;
  padding: .625rem 0;
}

.calculator-shell .calculator-result {
  align-self: stretch;
  overflow: hidden;
}

.calculator-shell .calculator-result > strong {
  min-height: .9em;
  margin-top: .75rem;
  font-size: clamp(4rem, 6.25vw, 6rem);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.calculator-shell .calculator-result > p:not(.calculator-interpretation) {
  margin: .75rem 0;
}

.calculator-shell .calculator-meter {
  margin: 1rem 0 0;
  padding: 0;
  border: 0;
}

.calculator-shell .calculator-result > .calculator-meter__scale {
  height: auto;
  margin: .4rem 0 .6rem;
  padding: 0;
  border: 0;
}

.calculator-shell .calculator-interpretation {
  min-height: 5.75rem;
  margin: .5rem 0 0;
  font-size: .8125rem;
  line-height: 1.4;
}

.calculator-shell .calculator-result > div:last-of-type {
  margin: .75rem 0;
  padding-top: .75rem;
}

.calculator-shell .calculator-result > div:last-of-type b {
  margin-top: .5rem;
  font-size: 2rem;
  font-variant-numeric: tabular-nums;
}

.calculator-shell .calculator-result small {
  padding-top: .75rem;
}

.calculator-shell .calculator-result .button {
  min-height: 3rem;
  padding-block: .75rem;
}

@media (max-width: 1100px) {
  .calculator-shell .calculator {
    grid-template-columns: minmax(0, 1fr) minmax(23rem, .86fr);
  }
}

@media (max-width: 900px) {
  .calculator-shell {
    padding: 1.25rem;
  }

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

  .calculator-shell .calculator form,
  .calculator-shell .calculator-result {
    height: auto;
    min-height: 0;
    padding: 1.75rem 1.25rem;
  }

  .calculator-shell .calculator-result {
    overflow: visible;
  }
}

.calculator-faq {
  display: grid;
  grid-template-columns: minmax(18rem, .78fr) minmax(0, 1.22fr);
  gap: clamp(3rem, 7vw, 8rem);
  margin-top: clamp(4rem, 7vw, 7rem);
  padding-top: clamp(3rem, 5vw, 5rem);
  border-top: 1px solid rgba(23, 33, 39, .2);
}

.calculator-faq__heading {
  align-self: start;
  position: sticky;
  top: 6rem;
}

.calculator-faq__heading h2 {
  margin: .75rem 0 1.25rem;
  max-width: 10ch;
  font-size: clamp(2.75rem, 4.4vw, 4.75rem);
  line-height: .94;
}

.calculator-faq__heading > p:not(.eyebrow) {
  max-width: 34rem;
  color: #59666d;
  line-height: 1.65;
}

.calculator-faq__formula {
  display: grid;
  gap: .75rem;
  margin-top: 2rem;
  padding: 1.5rem;
  border-radius: 1.25rem;
  background: #172127;
  color: #fff;
}

.calculator-faq__formula span,
.calculator-faq__formula small { color: #aeb9bd; }
.calculator-faq__formula strong { font-size: clamp(1.4rem, 2vw, 2rem); }
.calculator-faq__formula small { line-height: 1.6; }

.calculator-faq__category {
  margin: 2.25rem 0 .75rem;
  color: #59666d;
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.calculator-faq__category:first-child { margin-top: 0; }

.calculator-faq details { border-top: 1px solid rgba(23, 33, 39, .2); }
.calculator-faq details:last-child { border-bottom: 1px solid rgba(23, 33, 39, .2); }
.calculator-faq summary {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.35rem 0;
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}
.calculator-faq summary::-webkit-details-marker { display: none; }
.calculator-faq summary::after {
  content: '+';
  flex: 0 0 auto;
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1;
}
.calculator-faq details[open] summary::after { content: '−'; }
.calculator-faq summary:focus-visible {
  outline: 2px solid #172127;
  outline-offset: .35rem;
}
.calculator-faq__answer {
  padding: 0 3rem 1.5rem 0;
  color: #59666d;
  line-height: 1.65;
}
.calculator-faq__answer p { margin: 0 0 1rem; }
.calculator-faq__answer code {
  display: block;
  width: fit-content;
  margin: .75rem 0 1rem;
  padding: .55rem .8rem;
  border-radius: .5rem;
  background: rgba(23, 33, 39, .08);
  color: #172127;
  font-family: inherit;
  font-weight: 600;
}

@media (max-width: 900px) {
  .calculator-faq {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.5rem;
    margin-top: 3.5rem;
    padding-top: 3rem;
  }
  .calculator-faq__heading { position: static; }
  .calculator-faq__heading h2 { max-width: none; font-size: clamp(2.5rem, 11vw, 3.5rem); }
  .calculator-faq summary { padding: 1.15rem 0; }
  .calculator-faq__answer { padding-right: 0; }
}