.calculator-main {
  padding: 64px 0 112px;
}

.calculator-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  gap: 72px;
  align-items: end;
  margin-bottom: 56px;
}

.calculator-intro .lede {
  max-width: 720px;
  margin: 24px 0 0;
}

.trust-note {
  padding: 22px 0 2px 22px;
  border-left: 1px solid var(--line-strong);
  color: var(--ink-soft);
  font-size: 12px;
}

.trust-note strong {
  display: block;
  margin-bottom: 7px;
  color: var(--ink);
  font-size: 13px;
}

.calculator-stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.72fr);
  align-items: start;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.calculator-form {
  padding: 38px;
}

.form-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--line);
}

.form-toolbar h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 500;
}

.unit-toggle {
  display: inline-flex;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.42);
}

.unit-toggle button {
  min-width: 82px;
  padding: 8px 14px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
}

.unit-toggle button[aria-pressed='true'] {
  background: var(--ink);
  color: var(--cream);
}

.field-section {
  padding: 30px 0 2px;
}

.field-section + .field-section {
  margin-top: 28px;
  border-top: 1px solid var(--line);
}

.field-section h3 {
  margin: 0 0 20px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.field-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.field {
  display: grid;
  gap: 8px;
}

.field.full {
  grid-column: 1 / -1;
}

.field label,
.field-label {
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 700;
}

.input-wrap {
  position: relative;
}

.input-wrap input,
.field select {
  width: 100%;
  min-height: 50px;
  padding: 0 58px 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.54);
  color: var(--ink);
  transition: border 200ms ease, background 200ms ease;
}

.input-wrap input:hover,
.input-wrap input:focus,
.field select:hover,
.field select:focus {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.82);
}

.input-wrap input[aria-invalid='true'] {
  border-color: var(--warning);
}

.unit-label {
  position: absolute;
  top: 50%;
  right: 14px;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 700;
  transform: translateY(-50%);
  pointer-events: none;
}

.check-row {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.34);
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 12px;
}

.check-row input {
  width: 17px;
  height: 17px;
  margin: 1px 0 0;
  accent-color: var(--forest);
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 34px;
}

.button {
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
  transition: transform 220ms var(--ease), background 220ms var(--ease);
}

.button:hover {
  background: rgba(255, 255, 255, 0.7);
  transform: translateY(-1px);
}

.button.primary {
  border-color: var(--forest-deep);
  background: var(--forest-deep);
  color: var(--cream);
}