:root {
  --paper: #f3f0e8;
  --paper-deep: #e8e3d7;
  --ink: #101713;
  --muted: #60665f;
  --line: #cbc7bc;
  --forest: #173f2d;
  --forest-2: #0f3022;
  --mint: #c9f07b;
  --white: #fffefa;
  --danger: #a13025;
  --focus: #1959b8;
  --radius: 1.5rem;
  --content: 76rem;
  --gutter: clamp(1rem, 4vw, 3.5rem);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  background:
    linear-gradient(90deg, transparent calc(100% - 1px), rgba(16, 23, 19, .035) 1px) 0 0 / 4.5rem 4.5rem,
    var(--paper);
  color: var(--ink);
  line-height: 1.5;
}

button,
input,
select {
  font: inherit;
}

button,
select {
  cursor: pointer;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: .75rem;
  left: .75rem;
  padding: .75rem 1rem;
  border-radius: .5rem;
  background: var(--ink);
  color: var(--white);
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: .2rem solid var(--focus);
  outline-offset: .2rem;
}

.visually-hidden {
  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;
}

.site-header,
.site-footer,
main {
  width: min(100%, calc(var(--content) + (2 * var(--gutter))));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 5.5rem;
  padding-top: max(.75rem, env(safe-area-inset-top));
  border-bottom: 1px solid var(--line);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  min-height: 3rem;
  font-size: .87rem;
  font-weight: 800;
  letter-spacing: -.02em;
  text-decoration: none;
}

.wordmark__tag {
  padding: .2rem .42rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: .6rem;
  letter-spacing: .08em;
}

.privacy-note {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin: 0;
  color: var(--muted);
  font-size: .8rem;
  font-weight: 650;
}

.privacy-dot {
  width: .52rem;
  height: .52rem;
  border-radius: 50%;
  background: #4e8d36;
  box-shadow: 0 0 0 .2rem rgba(78, 141, 54, .13);
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(15rem, 25rem);
  gap: clamp(2rem, 7vw, 7rem);
  align-items: end;
  padding-block: clamp(3.25rem, 7vw, 5.75rem) clamp(2rem, 4vw, 3.5rem);
}

.eyebrow {
  margin: 0 0 1rem;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.intro .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: -1rem;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1 {
  margin: 0;
  max-width: 16ch;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3.1rem, 7vw, 6.25rem);
  font-weight: 400;
  letter-spacing: -.065em;
  line-height: .9;
}

h1 em {
  color: var(--forest);
  font-weight: 400;
}

.lede {
  margin: 0 0 .4rem;
  max-width: 32rem;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.22rem);
  line-height: 1.65;
}

.calculator {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 1.3rem 3rem rgba(16, 23, 19, .08);
}

.calculator-form,
.result-panel {
  min-width: 0;
  padding: clamp(1.25rem, 4vw, 3.25rem);
}

.calculator-form {
  border-right: 1px solid var(--ink);
}

.result-panel {
  display: flex;
  flex-direction: column;
  background: var(--forest);
  color: var(--white);
}

.form-heading {
  display: flex;
  align-items: flex-start;
  gap: .9rem;
  margin-bottom: clamp(2.25rem, 5vw, 4rem);
}

.form-heading h3 {
  margin: -.1rem 0 .2rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.4rem, 2vw, 1.8rem);
  font-weight: 400;
  letter-spacing: -.03em;
}

.form-heading p {
  margin: 0;
  color: var(--muted);
  font-size: .82rem;
}

.form-heading--result p {
  color: rgba(255, 254, 250, .64);
}

.section-number {
  min-width: 2.15rem;
  padding-top: .2rem;
  font-size: .68rem !important;
  font-weight: 800;
  letter-spacing: .08em;
}

.currency-price-row,
.percent-row {
  display: grid;
  grid-template-columns: minmax(7.75rem, .68fr) minmax(0, 1.32fr);
  gap: 1rem;
}

.percent-row {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1.1rem;
}

.field {
  min-width: 0;
}

.field label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 1.5rem;
  margin-bottom: .5rem;
  font-size: .78rem;
  font-weight: 750;
}

.optional {
  color: var(--muted);
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .03em;
  text-transform: uppercase;
}

.input-shell {
  position: relative;
}

input,
select {
  width: 100%;
  min-height: 3.45rem;
  border: 1px solid var(--line);
  border-radius: .75rem;
  background: #faf8f2;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 650;
  transition: border-color 150ms ease, background 150ms ease, box-shadow 150ms ease;
}

input {
  padding: .8rem 2.2rem .8rem 1rem;
  font-variant-numeric: tabular-nums;
}

select {
  padding: .8rem 2.1rem .8rem .85rem;
}

.field--price input {
  padding-left: 2rem;
}

input:hover,
select:hover {
  border-color: #98978f;
}

input:focus,
select:focus {
  border-color: var(--forest);
  background: var(--white);
  box-shadow: 0 0 0 .2rem rgba(23, 63, 45, .1);
  outline: none;
}

input[aria-invalid="true"] {
  border-color: var(--danger);
  box-shadow: 0 0 0 .2rem rgba(161, 48, 37, .09);
}

.input-affix {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: .85rem;
  color: var(--muted);
  font-size: .9rem;
  font-weight: 700;
  pointer-events: none;
  transform: translateY(-50%);
}

.input-affix--end {
  right: .85rem;
  left: auto;
}

.field-hint,
.field-error {
  display: block;
  min-height: 1.15rem;
  margin-top: .4rem;
  color: var(--muted);
  font-size: .68rem;
  line-height: 1.35;
}

.field-error:not(:empty) {
  color: var(--danger);
}

.field:has(.field-error:not(:empty)) .field-hint {
  display: none;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: .7rem;
  margin-top: 1.75rem;
}

.button {
  min-height: 3rem;
  border: 0;
  border-radius: .7rem;
  padding: .75rem 1rem;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .01em;
  transition: transform 150ms ease, background-color 150ms ease, color 150ms ease;
}

.button:active {
  transform: translateY(1px);
}

.button--primary {
  flex: 1;
  background: var(--ink);
  color: var(--white);
}

.button--primary:hover {
  background: var(--forest);
}

.button--quiet {
  background: transparent;
  color: var(--muted);
}

.button--quiet:hover {
  color: var(--ink);
}

.result-main {
  margin: auto 0 2rem;
}

.result-amount {
  display: block;
  max-width: 100%;
  color: var(--mint);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3.25rem, 6.2vw, 5.6rem);
  font-variant-numeric: lining-nums tabular-nums;
  letter-spacing: -.065em;
  line-height: .95;
  overflow-wrap: anywhere;
}

.result-amount[data-size="long"] {
  font-size: clamp(2.3rem, 4.9vw, 4.4rem);
}

.result-amount[data-size="extra-long"] {
  font-size: clamp(1.8rem, 4vw, 3.5rem);
}

.savings-line {
  margin: 1rem 0 0;
  color: rgba(255, 254, 250, .74);
  font-size: .9rem;
}

.savings-line output {
  color: var(--white);
  font-weight: 750;
}

.result-empty {
  margin: auto 0;
  max-width: 20rem;
  color: rgba(255, 254, 250, .65);
}

.breakdown {
  margin: 0;
  border-top: 1px solid rgba(255, 255, 255, .18);
}

.breakdown > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  min-height: 2.9rem;
  padding-block: .75rem;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.breakdown dt {
  color: rgba(255, 254, 250, .62);
  font-size: .74rem;
}

.breakdown dd {
  margin: 0;
  font-size: .8rem;
  font-weight: 750;
  font-variant-numeric: tabular-nums;
  text-align: right;
  overflow-wrap: anywhere;
}

.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin-top: 1.25rem;
}

.button--secondary {
  border: 1px solid rgba(255, 255, 255, .24);
  background: rgba(255, 255, 255, .08);
  color: var(--white);
}

.button--secondary:hover {
  background: rgba(255, 255, 255, .16);
}

.button--link {
  margin-left: auto;
  background: transparent;
  color: var(--mint);
}

.button--link:hover {
  color: var(--white);
}

.structured-result {
  margin-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, .12);
  color: rgba(255, 254, 250, .72);
  font-size: .72rem;
}

.structured-result summary {
  min-height: 2.75rem;
  padding-top: .85rem;
  cursor: pointer;
  font-weight: 700;
}

.structured-result pre {
  max-height: 15rem;
  margin: .4rem 0 0;
  overflow: auto;
  border-radius: .55rem;
  padding: .8rem;
  background: rgba(0, 0, 0, .18);
  color: var(--white);
  font-size: .68rem;
  line-height: 1.55;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.copy-status {
  min-height: 1rem;
  margin: .55rem 0 -.4rem;
  color: var(--mint);
  font-size: .68rem;
}

.ad-slot {
  width: 100%;
  overflow: hidden;
}

.ad-slot__inner {
  width: 100%;
  min-height: 7.5rem;
}

.ad-slot--primary {
  margin-block: clamp(2rem, 6vw, 5rem);
}

.ad-slot--secondary {
  margin-block: clamp(1.5rem, 5vw, 4rem);
}

.ad-slot--secondary .ad-slot__inner {
  min-height: 6rem;
}

.method {
  display: grid;
  grid-template-columns: minmax(15rem, .72fr) minmax(0, 1.28fr);
  gap: clamp(2.5rem, 9vw, 9rem);
  padding-block: clamp(4rem, 9vw, 8rem);
  border-top: 1px solid var(--line);
}

.method-heading {
  position: sticky;
  top: 2rem;
  align-self: start;
}

.method h2,
.faq h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.35rem, 5vw, 4.6rem);
  font-weight: 400;
  letter-spacing: -.055em;
  line-height: .96;
}

.method-content {
  display: grid;
  gap: 0;
}

.method-content article {
  padding-block: 2.2rem;
  border-top: 1px solid var(--line);
}

.method-content article:first-child {
  padding-top: 0;
  border-top: 0;
}

.method-content h3 {
  margin: 0 0 .85rem;
  font-size: 1rem;
  letter-spacing: -.02em;
}

.method-content p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.formula {
  display: grid;
  gap: .7rem;
  margin-top: 1.5rem;
  border-left: .2rem solid var(--forest);
  padding-left: 1rem;
}

.formula p {
  color: var(--ink);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: .78rem;
  line-height: 1.55;
}

.formula span {
  font-weight: 800;
}

.faq {
  max-width: 52rem;
  margin-inline: auto;
  padding-block: clamp(3.5rem, 7vw, 6rem);
}

.faq .eyebrow,
.faq h2 {
  text-align: center;
}

.faq-list {
  margin-top: 2.5rem;
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  position: relative;
  min-height: 4rem;
  padding: 1.25rem 2.4rem 1.1rem 0;
  cursor: pointer;
  font-weight: 750;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  position: absolute;
  top: 1.16rem;
  right: .15rem;
  content: "+";
  color: var(--forest);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.45rem;
  font-weight: 400;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  max-width: 43rem;
  margin: -.2rem 0 1.35rem;
  color: var(--muted);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 7rem;
  padding-bottom: max(1rem, env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .75rem;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--ink);
  font-weight: 750;
}

@media (max-width: 52rem) {
  .intro {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .intro .eyebrow {
    margin-bottom: 0;
  }

  .lede {
    max-width: 34rem;
  }

  .calculator {
    grid-template-columns: 1fr;
  }

  .calculator-form {
    border-right: 0;
    border-bottom: 1px solid var(--ink);
  }

  .result-panel {
    min-height: 37rem;
  }

  .method {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .method-heading {
    position: static;
  }
}

@media (max-width: 36rem) {
  :root {
    --radius: 1rem;
  }

  .site-header {
    min-height: 4.75rem;
  }

  .intro {
    padding-block: 2.75rem 1.75rem;
  }

  h1 {
    font-size: clamp(3rem, 15vw, 4.6rem);
  }

  .calculator-form,
  .result-panel {
    padding: 1.2rem;
  }

  .form-heading {
    margin-bottom: 2.25rem;
  }

  .currency-price-row {
    grid-template-columns: 7.4rem minmax(0, 1fr);
  }

  .percent-row {
    grid-template-columns: 1fr;
  }

  .result-panel {
    min-height: 35rem;
  }

  .result-amount {
    font-size: clamp(3rem, 15vw, 4.3rem);
  }

  .result-amount[data-size="long"] {
    font-size: clamp(2.2rem, 11vw, 3.4rem);
  }

  .result-amount[data-size="extra-long"] {
    font-size: clamp(1.75rem, 9vw, 2.8rem);
  }

  .button--link {
    margin-left: 0;
  }

  .site-footer {
    display: block;
    padding-block: 1.5rem max(1.5rem, env(safe-area-inset-bottom));
  }

  .site-footer p + p {
    margin-top: .4rem;
  }
}

@media (max-width: 22rem) {
  .privacy-note {
    font-size: .72rem;
  }

  .currency-price-row {
    grid-template-columns: 1fr;
  }

  .form-actions,
  .result-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button--link {
    width: 100%;
  }
}

@media (orientation: landscape) and (max-height: 31rem) {
  .intro {
    padding-block: 2.5rem 2rem;
  }

  .result-panel {
    min-height: 0;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}

@media print {
  body {
    background: #fff;
  }

  .site-header,
  .intro,
  .calculator-form,
  .result-actions,
  .structured-result,
  .copy-status,
  .ad-slot,
  .method,
  .faq,
  .site-footer {
    display: none !important;
  }

  main,
  .calculator {
    width: 100%;
    padding: 0;
    border: 0;
    box-shadow: none;
  }

  .calculator {
    display: block;
  }

  .result-panel {
    min-height: auto;
    color: #000;
    background: #fff;
  }

  .result-amount,
  .copy-status,
  .button--link {
    color: #000;
  }
}