/* Калькулятор стоимости */
.calc {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: clamp(1rem, 2.5vw, 1.75rem);
  align-items: start;
}

.calc__form {
  display: flex;
  flex-direction: column;
  gap: clamp(1.35rem, 2.8vw, 1.85rem);
  padding: clamp(1.35rem, 2.8vw, 2rem);
  border-radius: 20px;
  border: 1px solid var(--divider);
  background: rgba(255, 255, 255, 0.02);
}

.calc__group {
  border: 0;
}

.calc__legend {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-subtle);
  margin-bottom: 0.9rem;
  padding: 0;
}

.calc__options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.6rem;
}

.calc__option {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-height: 3.25rem;
  padding: 0.85rem 1rem;
  border-radius: 14px;
  border: 1px solid var(--divider);
  background: rgba(255, 255, 255, 0.02);
  cursor: pointer;
  transition: border-color var(--transition-micro), background var(--transition-micro);
}

.calc__option:hover {
  border-color: rgba(var(--page-accent-rgb, var(--accent-rgb)), 0.4);
}

.calc__option input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.calc__option-name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}

.calc__option-note {
  font-size: 0.8125rem;
  color: var(--text-subtle);
  line-height: 1.4;
}

.calc__option:has(input:checked) {
  border-color: rgba(var(--page-accent-rgb, var(--accent-rgb)), 0.62);
  background: rgba(var(--page-accent-rgb, var(--accent-rgb)), 0.1);
}

.calc__option:has(input:focus-visible) {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.calc__range-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.calc__range-value {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.calc__range {
  width: 100%;
  height: 2rem;
  appearance: none;
  background: transparent;
  cursor: pointer;
}

.calc__range::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 2px;
  background: rgba(244, 241, 234, 0.14);
}

.calc__range::-moz-range-track {
  height: 4px;
  border-radius: 2px;
  background: rgba(244, 241, 234, 0.14);
}

.calc__range::-webkit-slider-thumb {
  appearance: none;
  width: 20px;
  height: 20px;
  margin-top: -8px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #0b0a09;
  box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.18);
}

.calc__range::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #0b0a09;
  box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.18);
}

.calc__range:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 4px;
}

.calc__scale {
  display: flex;
  justify-content: space-between;
  margin-top: 0.35rem;
  font-size: 0.75rem;
  color: var(--text-subtle);
}

.calc__result {
  position: sticky;
  top: 6rem;
  padding: clamp(1.35rem, 2.8vw, 2rem);
  border-radius: 20px;
  border: 1px solid rgba(var(--page-accent-rgb, var(--accent-rgb)), 0.32);
  background:
    radial-gradient(ellipse 90% 70% at 50% 0%, rgba(var(--page-accent-rgb, var(--accent-rgb)), 0.12) 0%, transparent 62%),
    #12100e;
}

.calc__result-label {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(var(--page-accent-rgb, var(--accent-rgb)), 0.9);
  margin-bottom: 0.85rem;
}

.calc__sum {
  font-family: var(--font-display);
  font-size: clamp(1.625rem, 4vw, 2.125rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.1;
  margin-bottom: 0.4rem;
}

.calc__term {
  font-size: 0.9375rem;
  color: var(--text-muted);
  padding-bottom: 1.15rem;
  margin-bottom: 1.15rem;
  border-bottom: 1px solid var(--hairline);
}

.calc__breakdown {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.35rem;
  min-height: 4rem;
}

.calc__breakdown li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.calc__breakdown li span:last-child {
  color: var(--text);
  white-space: nowrap;
}

.calc__note {
  /* Свечение кнопки выходит за её границы на 1.75rem - уводим текст из-под него. */
  position: relative;
  z-index: 3;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--text-subtle);
  margin-top: 2.25rem;
}

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

  .calc__result {
    position: static;
  }
}