.wfa-calculator,
.wfa-calculator-card {
  --wfa-ink: #17211b;
  --wfa-muted: #526158;
  --wfa-border: #ccd7cf;
  --wfa-surface: #f5f8f6;
  --wfa-accent: #176b4d;
  --wfa-accent-dark: #0f5039;
  --wfa-focus: #e3a008;
  box-sizing: border-box;
  color: var(--wfa-ink);
  font: inherit;
}

.wfa-calculator *,
.wfa-calculator-card * {
  box-sizing: border-box;
}

.wfa-calculator {
  margin-inline: auto;
  max-width: 960px;
}

.wfa-calculator__intro {
  margin-block-end: 1.5rem;
}

.wfa-calculator__lede {
  font-size: 1.125rem;
  line-height: 1.65;
}

.wfa-calculator__privacy {
  border-inline-start: 4px solid var(--wfa-accent);
  color: var(--wfa-muted);
  padding: 0.25rem 0 0.25rem 1rem;
}

.wfa-calculator__fieldset {
  border: 1px solid var(--wfa-border);
  border-radius: 12px;
  margin: 0 0 1.25rem;
  padding: 1.25rem;
}

.wfa-calculator__fieldset legend {
  font-size: 1.1rem;
  font-weight: 700;
  padding-inline: 0.4rem;
}

.wfa-calculator__grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.wfa-calculator__field {
  display: flex;
  flex-direction: column;
  font-weight: 650;
  gap: 0.4rem;
}

.wfa-calculator__field input,
.wfa-calculator__field select {
  appearance: none;
  background: #fff;
  border: 1px solid #87968c;
  border-radius: 7px;
  color: var(--wfa-ink);
  font: inherit;
  min-height: 46px;
  padding: 0.65rem 0.75rem;
  width: 100%;
}

.wfa-calculator__field select {
  background-image:
    linear-gradient(45deg, transparent 50%, var(--wfa-ink) 50%),
    linear-gradient(135deg, var(--wfa-ink) 50%, transparent 50%);
  background-position:
    calc(100% - 18px) 50%,
    calc(100% - 13px) 50%;
  background-repeat: no-repeat;
  background-size: 5px 5px, 5px 5px;
  padding-inline-end: 2.5rem;
}

.wfa-calculator__field input:focus,
.wfa-calculator__field select:focus,
.wfa-calculator-button:focus-visible,
.wfa-calculator-card a:focus-visible {
  outline: 3px solid var(--wfa-focus);
  outline-offset: 2px;
}

.wfa-calculator__field small,
.wfa-calculator__hint {
  color: var(--wfa-muted);
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.45;
}

.wfa-calculator__hint {
  margin-block: 0 1rem;
}

.wfa-calculator__validation {
  background: #fff1f0;
  border: 1px solid #c9362b;
  border-radius: 7px;
  color: #751b15;
  margin-block-end: 1rem;
  padding: 0.8rem 1rem;
}

.wfa-calculator__actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-block: 1.5rem;
}

.wfa-calculator-button {
  border: 1px solid transparent;
  border-radius: 7px;
  cursor: pointer;
  display: inline-block;
  font: inherit;
  font-weight: 700;
  line-height: 1.3;
  padding: 0.7rem 1rem;
  text-align: center;
  text-decoration: none;
}

.wfa-calculator-button--primary {
  background: var(--wfa-accent);
  color: #fff;
}

.wfa-calculator-button--primary:hover {
  background: var(--wfa-accent-dark);
  color: #fff;
}

.wfa-calculator-button--secondary {
  background: #fff;
  border-color: var(--wfa-accent);
  color: var(--wfa-accent-dark);
}

.wfa-calculator-button--text {
  background: transparent;
  color: var(--wfa-accent-dark);
  text-decoration: underline;
}

.wfa-calculator__results {
  background: var(--wfa-surface);
  border: 2px solid var(--wfa-accent);
  border-radius: 14px;
  margin-block: 2rem;
  padding: clamp(1rem, 3vw, 2rem);
}

.wfa-calculator__result-heading {
  align-items: center;
  border-block-end: 1px solid var(--wfa-border);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding-block-end: 1.25rem;
}

.wfa-calculator__result-label {
  color: var(--wfa-muted);
  font-size: 0.9rem;
  font-weight: 700;
  margin: 0;
  text-transform: uppercase;
}

.wfa-calculator__result-total {
  color: var(--wfa-accent-dark);
  font-size: clamp(2rem, 7vw, 3.4rem);
  font-weight: 800;
  line-height: 1.1;
  margin: 0.3rem 0 0;
}

.wfa-calculator__result-grid {
  display: grid;
  gap: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 1rem 0;
}

.wfa-calculator__result-grid div {
  border-block-end: 1px solid var(--wfa-border);
  padding: 0.85rem;
}

.wfa-calculator__result-grid dt {
  color: var(--wfa-muted);
  font-size: 0.875rem;
}

.wfa-calculator__result-grid dd {
  font-size: 1.1rem;
  font-weight: 750;
  margin: 0.25rem 0 0;
}

.wfa-calculator__formula {
  color: var(--wfa-muted);
  line-height: 1.55;
}

.wfa-calculator__copy-status {
  font-weight: 700;
  min-height: 1.5em;
}

.wfa-calculator__notes {
  border-block-start: 1px solid var(--wfa-border);
  color: var(--wfa-muted);
  font-size: 0.925rem;
  line-height: 1.6;
  margin-block-start: 2rem;
  padding-block-start: 1rem;
}

.wfa-calculator__notes h2 {
  color: var(--wfa-ink);
  font-size: 1.1rem;
}

.wfa-calculator__guide {
  border-block-start: 1px solid var(--wfa-border);
  line-height: 1.7;
  margin-block-start: 2rem;
  padding-block-start: 1.5rem;
}

.wfa-calculator__guide h2 {
  font-size: 1.45rem;
  margin-block: 2rem 0.65rem;
}

.wfa-calculator__guide > h2:first-child {
  margin-block-start: 0;
}

.wfa-calculator__guide h3 {
  font-size: 1.05rem;
  margin-block: 1.25rem 0.35rem;
}

.wfa-calculator__guide p {
  margin-block: 0 1rem;
}

.wfa-calculator__guide a {
  color: var(--wfa-accent-dark);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

.wfa-calculator__example {
  background: var(--wfa-surface);
  border: 1px solid var(--wfa-border);
  border-radius: 12px;
  margin-block: 1.5rem 2rem;
  padding: 1.25rem;
}

.wfa-calculator__example h2 {
  margin-block-start: 0;
}

.wfa-calculator-card {
  background: var(--wfa-surface);
  border: 1px solid var(--wfa-border);
  border-radius: 12px;
  padding: 1.25rem;
}

.wfa-calculator-card__eyebrow {
  color: var(--wfa-accent-dark);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  margin: 0;
  text-transform: uppercase;
}

.wfa-calculator-card h2 {
  font-size: 1.35rem;
  margin-block: 0.4rem;
}

.wfa-calculator-card p:not(.wfa-calculator-card__eyebrow) {
  color: var(--wfa-muted);
  line-height: 1.55;
}

@media (max-width: 680px) {
  .wfa-calculator__grid,
  .wfa-calculator__result-grid {
    grid-template-columns: 1fr;
  }

  .wfa-calculator__fieldset {
    padding: 1rem;
  }

  .wfa-calculator__result-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .wfa-calculator__actions .wfa-calculator-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .wfa-calculator {
    scroll-behavior: auto;
  }
}