:root {
  --ink: #172b29;
  --muted: #5f706d;
  --deep: #173f3a;
  --deep-2: #0e302c;
  --mint: #d8eee7;
  --mint-2: #eff8f4;
  --paper: #fffdf8;
  --cream: #f5efe2;
  --accent: #d27645;
  --line: #d6dfda;
  --danger: #a62f2f;
  --shadow: 0 24px 64px rgba(23, 63, 58, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 10px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
}

.shell {
  width: min(1160px, calc(100% - 40px));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  color: white;
  background: var(--deep-2);
  border-radius: 8px;
  transform: translateY(-180%);
}

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

.site-header {
  border-bottom: 1px solid rgba(23, 63, 58, 0.12);
  background: rgba(255, 253, 248, 0.94);
}

.header-inner,
.footer-inner {
  display: flex;
  min-height: 70px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  color: var(--deep);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.privacy-note {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 650;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(310px, 0.75fr);
  gap: clamp(40px, 7vw, 92px);
  align-items: center;
  padding-block: clamp(72px, 10vw, 126px);
}

.eyebrow,
.step {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.14;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 790px;
  margin-bottom: 24px;
  font-size: clamp(2.7rem, 6vw, 5.5rem);
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

h3 {
  margin-bottom: 10px;
  font-size: 1.15rem;
}

.lead {
  max-width: 690px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: clamp(1.04rem, 1.8vw, 1.25rem);
}

.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.trust-list li {
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--deep);
  background: white;
  font-size: 0.84rem;
  font-weight: 700;
}

.hero-figure {
  padding: 28px;
  border: 1px solid rgba(23, 63, 58, 0.14);
  border-radius: var(--radius-lg);
  background: var(--mint-2);
  box-shadow: var(--shadow);
  transform: rotate(1.5deg);
}

.figure-label {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.figure-bar {
  height: 38px;
  margin: 14px 0 10px;
  overflow: hidden;
  border-radius: 12px;
  background: var(--cream);
}

.figure-bar span {
  display: block;
  width: 38%;
  height: 100%;
  background: var(--accent);
}

.figure-split {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 0.88rem;
}

.figure-split strong {
  color: var(--deep);
}

.hero-figure p {
  margin: 28px 0 0;
  color: var(--deep);
  font-size: 1.05rem;
  font-weight: 720;
}

.calculator-section {
  padding-block: clamp(55px, 8vw, 90px);
  background: var(--deep);
}

.calculator-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(330px, 0.82fr);
  gap: 24px;
  align-items: start;
}

.input-panel,
.results-panel {
  padding: clamp(24px, 4vw, 42px);
  border-radius: var(--radius-lg);
}

.input-panel {
  background: var(--paper);
}

.results-panel {
  position: sticky;
  top: 24px;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: var(--deep-2);
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}

.panel-heading h2 {
  margin-bottom: 0;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

.text-button {
  flex: 0 0 auto;
  padding: 8px 0;
  color: var(--deep);
  border: 0;
  border-bottom: 1px solid currentColor;
  background: transparent;
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 750;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 18px;
}

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

.field label {
  display: block;
  margin-bottom: 7px;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 760;
}

.money-input,
.percent-input,
.unit-input {
  display: flex;
  align-items: center;
  min-height: 50px;
  overflow: hidden;
  border: 1px solid #bdcac5;
  border-radius: var(--radius-sm);
  background: white;
}

.money-input span,
.percent-input span,
.unit-input span {
  padding-inline: 13px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.money-input input,
.percent-input input,
.unit-input input {
  min-width: 0;
  width: 100%;
  padding: 12px 0;
  color: var(--ink);
  border: 0;
  outline: 0;
  background: transparent;
  font-weight: 700;
}

.percent-input input,
.unit-input input {
  padding-left: 14px;
}

.money-input:focus-within,
.percent-input:focus-within,
.unit-input:focus-within {
  border-color: var(--deep);
  box-shadow: 0 0 0 3px rgba(23, 63, 58, 0.14);
}

.field-help {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.77rem;
  line-height: 1.45;
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 28px;
}

.primary-button,
.secondary-button,
.etsy-link {
  min-height: 48px;
  border-radius: 12px;
  font-weight: 780;
}

.primary-button,
.secondary-button {
  padding: 11px 18px;
  cursor: pointer;
}

.primary-button {
  color: white;
  border: 1px solid var(--deep);
  background: var(--deep);
}

.secondary-button {
  color: var(--deep);
  border: 1px solid var(--line);
  background: transparent;
}

.primary-button:hover,
.primary-button:focus-visible {
  background: var(--deep-2);
}

.secondary-button:hover,
.secondary-button:focus-visible,
.text-button:hover,
.text-button:focus-visible {
  color: var(--accent);
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid #efb790;
  outline-offset: 3px;
}

.form-error {
  margin-top: 20px;
  padding: 11px 13px;
  color: var(--danger);
  border-left: 4px solid var(--danger);
  background: #fff0f0;
  font-size: 0.9rem;
  font-weight: 650;
}

.result-state {
  padding: 5px 9px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  color: #dcebe7;
  font-size: 0.72rem;
  font-weight: 700;
}

.result-primary {
  padding-bottom: 25px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.result-primary p,
.result-primary span {
  color: #bcd0cb;
}

.result-primary p {
  margin-bottom: 4px;
  font-size: 0.86rem;
  font-weight: 720;
}

.result-primary strong {
  display: block;
  margin-bottom: 5px;
  color: #f6c7a8;
  font-size: clamp(2.7rem, 6vw, 4.4rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.result-primary span {
  font-size: 0.77rem;
}

.result-list {
  margin: 8px 0 0;
}

.result-list div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.11);
}

.result-list dt {
  color: #bcd0cb;
  font-size: 0.86rem;
}

.result-list dd {
  margin: 0;
  text-align: right;
  font-size: 1.05rem;
  font-weight: 800;
}

.interpretation {
  margin-top: 24px;
  padding: 18px;
  color: var(--ink);
  border-radius: var(--radius-md);
  background: var(--mint);
}

.interpretation h3 {
  margin-bottom: 7px;
  font-size: 1rem;
}

.interpretation p {
  margin: 0;
  font-size: 0.88rem;
}

.results-panel.is-impossible .result-primary strong {
  color: #ffb4aa;
  font-size: 2.2rem;
}

.guide {
  padding-block: clamp(76px, 10vw, 132px);
}

.guide > h2 {
  max-width: 750px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  margin-top: 44px;
}

.article-grid section {
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.article-grid p,
.limits p,
.next-step p {
  color: var(--muted);
}

.article-number {
  display: inline-block;
  margin-bottom: 28px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 850;
}

.formula-card {
  display: grid;
  grid-template-columns: 1.1fr repeat(2, minmax(0, 1fr));
  gap: 20px 30px;
  margin-top: 60px;
  padding: 32px;
  border-radius: var(--radius-lg);
  background: var(--cream);
}

.formula-card h3 {
  grid-row: span 2;
  font-size: 1.4rem;
}

.formula-card p {
  margin: 0;
  font-size: 0.88rem;
}

.next-step {
  padding-block: clamp(60px, 8vw, 90px);
  background: var(--mint-2);
}

.next-step-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 50px;
  align-items: center;
}

.next-step-inner > div {
  max-width: 740px;
}

.etsy-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 13px 18px;
  color: white;
  background: var(--deep);
  text-decoration: none;
}

.etsy-link:hover,
.etsy-link:focus-visible {
  background: var(--deep-2);
}

.limits {
  max-width: 850px;
  padding-block: 70px;
  text-align: center;
}

.limits h2 {
  font-size: 1.55rem;
}

.limits p {
  font-size: 0.88rem;
}

.site-footer {
  color: #c6d5d2;
  background: var(--deep-2);
}

.footer-inner {
  min-height: 80px;
  font-size: 0.84rem;
}

@media (max-width: 900px) {
  .hero,
  .calculator-grid,
  .next-step-inner {
    grid-template-columns: 1fr;
  }

  .hero-figure {
    max-width: 520px;
  }

  .results-panel {
    position: static;
  }

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

  .formula-card {
    grid-template-columns: 1fr;
  }

  .formula-card h3 {
    grid-row: auto;
  }

  .next-step-inner {
    gap: 20px;
  }

  .etsy-link {
    width: fit-content;
  }
}

@media (max-width: 620px) {
  .shell {
    width: min(100% - 24px, 1160px);
  }

  .header-inner {
    min-height: 58px;
  }

  .privacy-note {
    font-size: 0.76rem;
  }

  .hero {
    padding-block: 54px 66px;
  }

  h1 {
    font-size: clamp(2.45rem, 13vw, 3.6rem);
  }

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

  .field-wide {
    grid-column: auto;
  }

  .form-actions {
    flex-direction: column;
  }

  .primary-button,
  .secondary-button {
    width: 100%;
  }

  .panel-heading {
    flex-direction: column;
    gap: 8px;
  }

  .result-state {
    align-self: flex-start;
  }

  .result-list div {
    align-items: flex-start;
  }

  .formula-card {
    padding: 24px;
  }

  .etsy-link {
    width: 100%;
  }

  .footer-inner {
    flex-direction: column;
    justify-content: center;
    gap: 4px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media print {
  .site-header,
  .form-actions,
  .next-step,
  .site-footer {
    display: none;
  }

  .calculator-section {
    color: black;
    background: white;
  }

  .results-panel {
    color: black;
    border: 1px solid #999;
    background: white;
  }
}