.calculator-page {
  background: var(--slate-50);
}

.calculator-page main {
  overflow: clip;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.calculator-intro {
  color: var(--white);
  background: var(--cobalt-800);
}

.calculator-intro-inner {
  display: grid;
  gap: 1.5rem;
  align-items: end;
  padding-top: 3.5rem;
  padding-bottom: 3.5rem;
}

.calculator-intro h1 {
  max-width: 19ch;
  margin-bottom: 1rem;
  font-size: clamp(2.2rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.035em;
}

.calculator-intro p {
  max-width: 68ch;
  color: var(--cobalt-50);
  font-size: 1.1rem;
  line-height: 1.65;
}

.handoff-note {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  max-width: 24rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255,255,255,0.24);
  color: var(--cobalt-50);
  font-size: 0.9rem;
  line-height: 1.55;
}

.handoff-note svg {
  width: 1.25rem;
  height: 1.25rem;
  flex: 0 0 auto;
  margin-top: 0.08rem;
}

.calculator-workspace {
  padding: 2rem 0 2rem;
  background: var(--slate-50);
}

.calculator-container {
  max-width: 90rem;
}

.calculator-grid {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

.calculator-form {
  padding: clamp(1.25rem, 3vw, 2.5rem);
  border-radius: var(--radius-xl);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.calculator-question {
  min-width: 0;
  padding: 0;
  border: 0;
}

.calculator-question + .calculator-question {
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--slate-200);
}

.calculator-question legend {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  width: 100%;
  margin-bottom: 1.25rem;
  color: var(--slate-900);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 800;
  line-height: 1.35;
}

.calculator-question legend > span {
  display: inline-grid;
  width: 1.8rem;
  height: 1.8rem;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  background: var(--cobalt);
  color: var(--white);
  font-size: 0.9rem;
  line-height: 1;
}

.question-hint {
  max-width: 68ch;
  margin-top: 0.75rem;
  color: var(--slate-600);
  font-size: 0.9rem;
}

.field-error {
  min-height: 1.4em;
  margin-top: 0.4rem;
  color: #9f1239;
  font-size: 0.875rem;
  font-weight: 600;
}

.number-control {
  display: grid;
  grid-template-columns: 3.25rem minmax(9rem, 13rem) 3.25rem;
  width: fit-content;
  max-width: 100%;
  overflow: hidden;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-lg);
  background: var(--white);
}

.number-step {
  display: grid;
  min-height: 3.5rem;
  place-items: center;
  border: 0;
  background: var(--slate-50);
  color: var(--cobalt-800);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.number-step:first-child {
  border-right: 1px solid var(--slate-300);
}

.number-step:last-child {
  border-left: 1px solid var(--slate-300);
}

.number-step:hover:not(:disabled) {
  background: var(--cobalt-50);
  color: var(--cobalt-700);
}

.number-step:active:not(:disabled) {
  background: var(--cobalt-100);
}

.number-step:disabled {
  color: var(--slate-400);
  cursor: not-allowed;
  opacity: 0.65;
}

.number-step svg {
  width: 1.3rem;
  height: 1.3rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

.number-input-wrap {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.4rem 0.75rem;
}

.number-input-wrap input {
  width: 4.4rem;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--slate-900);
  font: 800 1.5rem/1 var(--font-body);
  text-align: right;
  appearance: textfield;
}

.number-input-wrap input::-webkit-outer-spin-button,
.number-input-wrap input::-webkit-inner-spin-button {
  margin: 0;
  appearance: none;
}

.number-input-wrap span:last-child {
  color: var(--slate-600);
  font-size: 0.85rem;
}

.number-control:focus-within {
  border-color: var(--cobalt);
  box-shadow: var(--focus-ring);
}

.choice-grid {
  display: grid;
  gap: 0.75rem;
}

.choice-card {
  position: relative;
  display: block;
  min-width: 0;
  cursor: pointer;
}

.choice-card input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.choice-card-content {
  position: relative;
  display: flex;
  min-height: 100%;
  flex-direction: column;
  align-items: flex-start;
  padding: 1rem;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-lg);
  background: var(--white);
  color: var(--slate-700);
  transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.choice-card-content::after {
  content: "";
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  width: 1.4rem;
  height: 1.4rem;
  border: 2px solid var(--slate-300);
  border-radius: 50%;
  background: var(--white);
}

.choice-card:hover .choice-card-content {
  border-color: var(--cobalt-300);
  background: var(--cobalt-50);
}

.choice-card input:checked + .choice-card-content {
  border-color: var(--cobalt);
  background: var(--cobalt-50);
  box-shadow: inset 0 0 0 1px var(--cobalt);
}

.choice-card input:checked + .choice-card-content::after {
  border-color: var(--cobalt);
  background-color: var(--cobalt);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l4 4L19 6'/%3E%3C/svg%3E");
  background-size: 0.9rem;
  background-repeat: no-repeat;
  background-position: center;
}

.choice-card input:focus-visible + .choice-card-content {
  outline: 3px solid rgba(0,115,188,0.35);
  outline-offset: 3px;
}

.choice-title {
  display: block;
  width: calc(100% - 2rem);
  color: var(--slate-900);
  font-weight: 800;
  overflow-wrap: break-word;
}

.choice-card-content > strong {
  margin-top: 0.55rem;
  color: var(--cobalt-700);
  font-size: 1rem;
}

.choice-card-content > strong span {
  color: var(--slate-500);
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
}

.choice-description {
  margin-top: 0.45rem;
  color: var(--slate-600);
  font-size: 0.86rem;
  line-height: 1.45;
}

.calculator-result {
  position: relative;
  align-self: start;
  container-type: inline-size;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--cobalt-900);
  color: var(--white);
  box-shadow: var(--shadow-lg);
}

.result-content {
  position: relative;
  z-index: 1;
  padding: clamp(1.5rem, 4vw, 2.5rem);
}

.result-label {
  color: var(--cobalt-100);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.result-overview {
  display: grid;
  gap: 1.5rem;
}

.result-recommendation {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.2);
}

.calculator-result h2 {
  margin-top: 0.5rem;
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.035em;
}

.calculator-result h2 small {
  display: block;
  margin-top: 0.45rem;
  color: var(--cobalt-100);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0;
}

.result-basis {
  margin-top: 0.75rem;
  color: var(--cobalt-100);
  font-size: 0.9rem;
}

.result-basis strong {
  color: var(--white);
}

.recommendation-line {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 0.65rem;
}

.recommendation-line svg {
  width: 2rem;
  height: 2rem;
  flex: 0 0 auto;
  padding: 0.35rem;
  border: 2px solid #6ee7b7;
  border-radius: 50%;
  color: #6ee7b7;
}

.recommendation-line strong {
  color: #a7f3d0;
  font-size: clamp(1.6rem, 4vw, 2.25rem);
  line-height: 1.1;
}

.result-detail,
.result-caveat {
  margin-top: 0.45rem;
  color: var(--cobalt-100);
  font-size: 0.85rem;
  line-height: 1.55;
}

.result-caveat {
  margin-top: 0;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.05);
}

.result-actions {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.25rem;
}

.result-cta {
  width: 100%;
  margin-top: 0;
  text-align: center;
}

.calculator-result.is-updating .result-content > * {
  animation: result-shift 420ms cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes result-shift {
  from {
    opacity: 0.55;
    filter: blur(3px);
    transform: translateY(0.45rem);
  }
}

.calculation-note h2 {
  color: var(--slate-900);
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.calculation-note-grid > div:first-child p {
  max-width: 68ch;
  margin-top: 0.75rem;
  color: var(--slate-600);
  line-height: 1.7;
}

.result-equivalents {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.2);
}

.result-equivalents h3 {
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 800;
  line-height: 1.3;
}

.result-equivalents > p {
  margin-top: 0.5rem;
  color: var(--cobalt-100);
  font-size: 0.82rem;
  line-height: 1.5;
}

.anchor-values {
  display: grid;
  gap: 0;
  margin-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.16);
  border-bottom: 1px solid rgba(255,255,255,0.16);
}

.anchor-value {
  display: grid;
  grid-template-columns: 1.6rem minmax(4.5rem, auto) minmax(0, 1fr);
  gap: 0.65rem;
  align-items: center;
  min-width: 0;
  padding: 0.8rem 0;
}

.anchor-value + .anchor-value {
  border-top: 1px solid rgba(255,255,255,0.16);
}

.anchor-value svg {
  width: 1.4rem;
  height: 1.4rem;
  color: var(--cobalt-200);
}

.anchor-value strong {
  color: var(--white);
  font-size: 1.2rem;
  line-height: 1;
  letter-spacing: -0.025em;
}

.anchor-value span {
  min-width: 0;
  color: var(--cobalt-100);
  font-size: 0.78rem;
  line-height: 1.4;
  hyphens: auto;
  overflow-wrap: break-word;
}

@container (min-width: 24rem) {
  .anchor-values {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 0;
    border-bottom: 0;
  }

  .anchor-value {
    grid-template-columns: 1fr;
    align-content: start;
    gap: 0.45rem;
    padding: 0 0.75rem;
    border-left: 1px solid rgba(255,255,255,0.16);
  }

  .anchor-value:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .anchor-value + .anchor-value {
    border-top: 0;
  }

  .anchor-value strong {
    font-size: 1.55rem;
  }
}

@container (min-width: 34rem) {
  .result-overview {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 1.5rem;
  }

  .result-recommendation {
    padding-top: 0;
    padding-left: 1.5rem;
    border-top: 0;
    border-left: 1px solid rgba(255,255,255,0.2);
  }

  .calculator-result h2 {
    font-size: 2.5rem;
  }

  .recommendation-line strong {
    font-size: 1.6rem;
  }

  .result-actions {
    grid-template-columns: minmax(0, 1.25fr) minmax(11rem, 0.75fr);
    align-items: stretch;
  }
}

@container (min-width: 70rem) {
  .result-content {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 1.5rem 2.5rem;
    align-items: start;
  }

  .result-equivalents {
    margin-top: 0;
    padding-top: 0;
    padding-left: 2.5rem;
    border-top: 0;
    border-left: 1px solid rgba(255,255,255,0.2);
  }

  .anchor-value {
    padding-right: 1rem;
    padding-left: 1rem;
  }

  .anchor-value:first-child {
    padding-left: 0;
  }

  .result-actions {
    grid-column: 1 / -1;
    grid-template-columns: minmax(0, 1fr) minmax(14rem, 18rem);
    gap: 1.5rem;
    align-items: stretch;
    margin-top: 0;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.2);
  }
}

.calculation-note {
  padding: 2.75rem 0 4.5rem;
  background: var(--slate-50);
}

.calculation-note-grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.recalibration-note {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.5rem;
  border-radius: var(--radius-xl);
  background: var(--cobalt-900);
  color: var(--white);
}

.recalibration-note svg {
  width: 2rem;
  height: 2rem;
  color: var(--cobalt-200);
}

.recalibration-note h3 {
  margin-bottom: 0.5rem;
  font-size: 1.15rem;
}

.recalibration-note p {
  color: var(--cobalt-100);
  font-size: 0.92rem;
  line-height: 1.6;
}

@media (min-width: 640px) {
  .frequency-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .calculator-intro-inner {
    grid-template-columns: minmax(0, 1fr) minmax(17rem, 24rem);
  }

  .calculation-note-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.75fr);
  }
}

@media (min-width: 1024px) {
  .calculator-workspace {
    margin-top: -1.5rem;
    padding-top: 0;
  }
}

@media (min-width: 1100px) {
  .calculator-form {
    display: grid;
    grid-template-columns: minmax(20rem, 0.7fr) minmax(0, 1.3fr);
    gap: 2.5rem;
    align-items: start;
  }

  .calculator-question + .calculator-question {
    margin-top: 0;
    padding-top: 0;
    padding-left: 2.5rem;
    border-top: 0;
    border-left: 1px solid var(--slate-200);
  }

  .choice-card-content {
    min-height: 9rem;
  }
}

@media (max-width: 767px) {
  .calculator-intro-inner {
    padding-top: 2.5rem;
    padding-bottom: 2.5rem;
  }

  .calculator-intro h1 {
    font-size: clamp(2rem, 10vw, 2.7rem);
  }

  .calculator-intro p {
    font-size: 1rem;
  }

  .calculator-workspace {
    padding-top: 1rem;
    padding-bottom: 1.75rem;
  }

  .calculator-form,
  .calculator-result,
  .recalibration-note {
    border-radius: var(--radius-lg);
  }

  .calculator-question + .calculator-question {
    margin-top: 2rem;
    padding-top: 2rem;
  }

  .number-control {
    width: 100%;
    grid-template-columns: 3.25rem minmax(0, 1fr) 3.25rem;
  }

  .number-input-wrap input {
    font-size: 1.35rem;
  }

  .choice-card-content {
    min-height: 8.5rem;
  }

  .calculator-result h2 {
    font-size: clamp(2rem, 11vw, 3rem);
  }

  .calculation-note {
    padding: 2.5rem 0 3.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .calculator-result.is-updating .result-content > * {
    animation: none;
  }
}