.age-diff-calculator-wrap {
  --adc-bg: #ffffff;
  --adc-surface: #f6f7f9;
  --adc-border: #dfe3e8;
  --adc-text: #102033;
  --adc-text-muted: #5b6472;
  --adc-accent: #245f50;
  --adc-accent-dark: #1d4e42;
  --adc-accent-contrast: #ffffff;
  --adc-error: #b3261e;
  --adc-error-bg: #fdecea;
  --adc-radius: 12px;
  --adc-focus-ring: 0 0 0 3px rgba(47,111,94,.22);
  max-width: 760px;
  margin: 0 auto;
  color: var(--adc-text);
  box-sizing: border-box;
}
.age-diff-calculator-wrap *,
.age-diff-calculator-wrap *::before,
.age-diff-calculator-wrap *::after { box-sizing: inherit; }
.age-diff-calculator-card {
  background: var(--adc-bg);
  border: 1px solid var(--adc-border);
  border-radius: var(--adc-radius);
  padding: 24px;
}
.age-diff-calculator-fieldgroup { margin-bottom: 24px; }
.age-diff-calculator-label {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
}
.age-diff-calculator-date-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr;
  gap: 10px;
}
.age-diff-calculator-select {
  width: 100%;
  min-height: 46px;
  padding: 10px 14px;
  border: 1px solid var(--adc-border);
  border-radius: 8px;
  background: var(--adc-surface);
  color: var(--adc-text);
  font: inherit;
  font-size: 16px;
  line-height: 1.3;
}
.age-diff-calculator-select:focus,
.age-diff-calculator-btn:focus-visible,
.age-diff-calculator-btn-secondary:focus-visible {
  outline: none;
  border-color: var(--adc-accent);
  box-shadow: var(--adc-focus-ring);
}
.age-diff-calculator-select[aria-invalid="true"] {
  border-color: var(--adc-error);
  background: var(--adc-error-bg);
}
.age-diff-calculator-privacy-note {
  margin: -5px 0 22px;
  color: var(--adc-text-muted);
  font-size: 13px;
}
.age-diff-calculator-actions {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 12px;
}
.age-diff-calculator-btn,
.age-diff-calculator-btn-secondary {
  min-height: 56px;
  border-radius: 8px;
  padding: 12px 18px;
  font: inherit;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
}
.age-diff-calculator-btn {
  border: 1px solid var(--adc-accent);
  background: var(--adc-accent);
  color: var(--adc-accent-contrast);
}
.age-diff-calculator-btn:hover { background: var(--adc-accent-dark); }
.age-diff-calculator-btn-secondary {
  border: 1px solid var(--adc-border);
  background: #fff;
  color: var(--adc-text);
}
.age-diff-calculator-btn-secondary:hover { background: var(--adc-surface); }
.age-diff-calculator-error {
  display: none;
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid var(--adc-error);
  border-radius: 8px;
  background: var(--adc-error-bg);
  color: var(--adc-error);
  font-size: 14px;
}
.age-diff-calculator-error.is-visible { display: block; }
.age-diff-calculator-results {
  display: none;
  margin-top: 26px;
  padding-top: 24px;
  border-top: 1px solid var(--adc-border);
}
.age-diff-calculator-results.is-visible { display: block; }
.age-diff-calculator-headline {
  margin: 0 0 18px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
}
.age-diff-calculator-primary-cards {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 12px;
  margin-bottom: 18px;
}
.age-diff-calculator-primary-card {
  padding: 16px 10px;
  border: 1px solid var(--adc-border);
  border-radius: 10px;
  background: var(--adc-surface);
  text-align: center;
}
.age-diff-calculator-primary-card-value {
  display: block;
  color: var(--adc-accent-dark);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.15;
}
.age-diff-calculator-primary-card-label {
  display: block;
  margin-top: 5px;
  color: var(--adc-text-muted);
  font-size: 13px;
}
.age-diff-calculator-secondary-grid {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: 10px;
  margin-bottom: 18px;
}
.age-diff-calculator-secondary-item {
  padding: 12px 14px;
  border: 1px solid var(--adc-border);
  border-radius: 8px;
  color: var(--adc-text-muted);
  font-size: 13px;
}
.age-diff-calculator-secondary-item strong {
  display: block;
  margin-top: 3px;
  color: var(--adc-text);
  font-size: 16px;
  overflow-wrap: anywhere;
}
.age-diff-calculator-note-box {
  padding: 15px 16px;
  border: 1px solid var(--adc-border);
  border-radius: 10px;
  background: var(--adc-surface);
  font-size: 14px;
  line-height: 1.6;
}
.age-diff-calculator-note-box p { margin: 0; }
.age-diff-calculator-note-box p + p { margin-top: 8px; }
.age-diff-calculator-note-box strong { color: var(--adc-accent-dark); }
@media (max-width: 620px) {
  .age-diff-calculator-card { padding: 18px; }
  .age-diff-calculator-date-row { grid-template-columns: 1fr; }
  .age-diff-calculator-actions { grid-template-columns: 1fr; }
  .age-diff-calculator-primary-cards { grid-template-columns: repeat(3,1fr); }
  .age-diff-calculator-secondary-grid { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  .age-diff-calculator-primary-cards { grid-template-columns: 1fr; }
}