:root {
  color-scheme: light;
  --ink: #101b31;
  --ink-soft: #32415d;
  --violet: #5c38a1;
  --violet-dark: #3d236f;
  --violet-pale: #f1ecfb;
  --paper: #fcfaf7;
  --canvas: #f4f1ed;
  --line: #ded7cf;
  --line-strong: #cfc4b9;
  --gold: #79551f;
  --positive: #12664f;
  --negative: #ad3d38;
  --muted: #667085;
  --shadow: 0 18px 42px rgba(16, 27, 49, .09);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.5;
}
a { color: inherit; }
button, input, select { font: inherit; }
button { cursor: pointer; }

.site-header,
main,
.site-footer {
  width: min(1200px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 850;
  letter-spacing: .15em;
  text-decoration: none;
}
.site-header nav,
.site-footer nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
}
.site-header nav a,
.site-footer nav a {
  color: var(--ink-soft);
  font-size: .875rem;
  font-weight: 650;
  text-decoration: none;
}
.site-header nav a:hover,
.site-footer nav a:hover { color: var(--violet); text-decoration: underline; }

.intro {
  max-width: 770px;
  padding: 32px 0 28px;
}
.eyebrow {
  margin: 0 0 10px;
  color: var(--violet);
  font-size: .75rem;
  font-weight: 850;
  letter-spacing: .14em;
}
h1, h2, h3, h4, p { margin-top: 0; }
h1, h2, h3, h4 { color: var(--ink); font-family: Georgia, "Times New Roman", serif; }
h1 {
  max-width: 720px;
  margin-bottom: 18px;
  font-size: clamp(2.7rem, 5.3vw, 4.7rem);
  line-height: .98;
  font-weight: 500;
  letter-spacing: -.052em;
}
.intro > p:not(.eyebrow) { max-width: 670px; color: var(--ink-soft); font-size: 1.125rem; }
.intro-points { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 23px; color: var(--positive); font-size: .92rem; font-weight: 720; }

.tool-section { padding: 42px 0 78px; scroll-margin-top: 20px; }
.section-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(240px, 370px); gap: 40px; align-items: end; margin-bottom: 28px; }
.section-heading h2 { margin: 0; font-size: clamp(2rem, 3.3vw, 3.1rem); line-height: 1.05; font-weight: 500; letter-spacing: -.036em; }
.section-heading > p { margin: 0 0 4px; color: var(--ink-soft); font-size: 1.02rem; }

.calculator-layout,
.analyzer-layout { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(390px, .88fr); gap: 26px; align-items: start; }
.input-surface,
.result-surface,
.analyzer-input-surface,
.analyzer-summary {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--paper);
  box-shadow: var(--shadow);
}
.input-surface,
.analyzer-input-surface { padding: 28px; }
.result-surface,
.analyzer-summary { padding: 30px; }
fieldset { min-width: 0; margin: 0; padding: 0 0 24px; border: 0; }
fieldset + fieldset { padding-top: 24px; border-top: 1px solid var(--line); }
fieldset:last-of-type { padding-bottom: 8px; }
legend { margin-bottom: 14px; color: var(--ink); font-size: 1rem; font-weight: 800; }
.fee-fieldset { position: relative; }
.fee-rule-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 10px;
  margin: -2px 0 15px;
  color: var(--muted);
  font-size: .78rem;
}
.fee-rule-meta a { color: var(--violet); font-weight: 700; }
.rule-choice { display: grid; gap: 5px; margin-top: 16px; padding-top: 15px; border-top: 1px solid var(--line); }
.check-label { display: flex; align-items: flex-start; gap: 9px; font-size: .86rem; line-height: 1.35; }
.check-label input { flex: 0 0 auto; min-height: 0; width: 17px; height: 17px; margin: 1px 0 0; accent-color: var(--violet); }
.tax-settings { margin-top: 18px; border: 1px solid var(--line); border-radius: 10px; background: #fff; padding: 12px 14px; }
.tax-settings summary { cursor: pointer; color: var(--violet); font-size: .88rem; font-weight: 800; }
.tax-settings > p { margin: 12px 0 14px; color: var(--ink-soft); font-size: .8rem; }
.tax-setting-status { min-height: 1.25rem; margin-bottom: 12px; color: var(--positive); font-size: .8rem; font-weight: 750; }
.tax-setting-status[data-state="custom"],
.tax-setting-status[data-state="warning"] { color: var(--gold); }
.tax-setting-grid { display: grid; gap: 12px; }
.tax-setting-grid article { display: grid; gap: 10px; padding: 13px; border: 1px solid var(--line); border-radius: 8px; }
.tax-setting-grid article > div:first-child { display: grid; gap: 2px; }
.tax-setting-grid strong { font-size: .88rem; }
.tax-setting-grid span { color: var(--muted); font-size: .76rem; }
.secondary-button { min-height: 38px; margin-top: 13px; border: 1px solid var(--violet); border-radius: 7px; background: #fff; color: var(--violet); padding: 8px 11px; font-size: .82rem; font-weight: 800; }
.secondary-button:hover { background: var(--violet-pale); }
.field-grid { display: grid; gap: 15px; }
.field-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.field-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.field-grid.compact { gap: 10px; }
label { display: grid; gap: 7px; color: var(--ink); font-size: .9rem; font-weight: 760; }
label span { color: var(--muted); font-size: .83rem; font-weight: 550; }
small { color: var(--muted); font-size: .76rem; font-weight: 500; line-height: 1.35; }
input, select {
  min-width: 0;
  min-height: 45px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 10px 12px;
  outline: none;
}
input:focus, select:focus { border-color: var(--violet); box-shadow: 0 0 0 3px rgba(92, 56, 161, .14); }
input::placeholder { color: #706860; }
.form-note { margin: 18px 0; color: var(--muted); font-size: .82rem; }
.primary-button {
  width: 100%;
  min-height: 49px;
  border: 0;
  border-radius: 8px;
  background: var(--violet);
  color: #fff;
  font-weight: 800;
  box-shadow: 0 8px 18px rgba(92, 56, 161, .22);
}
.primary-button:hover { background: var(--violet-dark); }
.primary-button:focus-visible { outline: 3px solid rgba(92, 56, 161, .35); outline-offset: 3px; }
.status { min-height: 1.3rem; margin: 12px 0 0; font-size: .86rem; }
.status[data-state="success"] { color: var(--positive); }
.status[data-state="error"] { color: var(--negative); font-weight: 700; }
.status[data-state="pending"] { color: var(--ink-soft); }

.result-heading { display: flex; align-items: start; justify-content: space-between; gap: 12px; margin-bottom: 28px; }
.result-heading .eyebrow { margin: 0; }
.result-heading h3 { margin: 2px 0 0; font-size: 1.45rem; line-height: 1.2; font-weight: 550; }
.local-badge { display: inline-block; flex: 0 0 auto; border: 1px solid #bddace; border-radius: 999px; background: #eef8f4; color: var(--positive); padding: 4px 8px; font-size: .72rem; font-weight: 750; }
.empty-result { min-height: 340px; display: grid; align-content: center; gap: 6px; border-top: 1px solid var(--line); color: var(--ink-soft); }
.empty-result strong { color: var(--ink); font-size: 1.2rem; }
.empty-result p { margin: 0; max-width: 340px; }
.result-label { margin: 0 0 4px; color: var(--muted); font-size: .81rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.net-profit { display: block; margin: 0 0 7px; color: var(--positive); font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.55rem, 5vw, 4.1rem); font-weight: 500; letter-spacing: -.05em; line-height: 1; }
.net-profit.is-negative { color: var(--negative); }
.result-subtext { margin-bottom: 23px; color: var(--ink-soft); font-weight: 720; }
.deduction-list { border-top: 1px solid var(--line); }
.deduction-list > div { display: flex; justify-content: space-between; gap: 20px; padding: 11px 0; border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: .9rem; }
.deduction-list > div > * { min-width: 0; }
.deduction-list strong { color: var(--ink); font-variant-numeric: tabular-nums; text-align: right; overflow-wrap: anywhere; }
.deduction-list .net-revenue { color: var(--ink); font-weight: 750; }
.decision-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 22px; }
.decision-grid article,
.analysis-totals article { min-width: 0; padding: 14px; border: 1px solid var(--line); border-radius: 9px; background: #fff; }
.decision-grid span,
.analysis-totals span { display: block; color: var(--muted); font-size: .73rem; font-weight: 750; line-height: 1.3; }
.decision-grid strong,
.analysis-totals strong { display: block; margin: 5px 0 3px; color: var(--ink); font-size: 1.05rem; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.decision-grid small { display: block; }
.formula-details { margin-top: 22px; color: var(--ink-soft); font-size: .82rem; }
.formula-details summary { cursor: pointer; color: var(--violet); font-weight: 750; }
.formula-details ul { margin: 12px 0 0; padding-left: 18px; }

.analyzer-section { padding-top: 5px; }
.file-drop { min-height: 148px; display: grid; place-content: center; justify-items: center; gap: 7px; border: 1.5px dashed var(--line-strong); border-radius: 11px; background: #fff; padding: 18px; text-align: center; }
.file-drop:hover,
.file-drop:focus-within { border-color: var(--violet); background: #fcfbff; box-shadow: 0 0 0 3px rgba(92, 56, 161, .14); }
.file-drop input { position: absolute; inline-size: 1px; block-size: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
.file-drop strong { color: var(--ink); }
.file-drop span { color: var(--muted); font-size: .8rem; font-weight: 550; }
.file-drop.compact { min-height: 95px; margin: 18px 0; }
.analyzer-input-surface > .field-grid { margin-top: 18px; }
.sheet-choice { margin-top: 14px; padding: 13px; border: 1px solid var(--line); border-radius: 9px; background: var(--violet-pale); }
.analyzer-summary { min-height: 490px; }
.completeness-card { display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: center; margin-bottom: 18px; padding: 16px; border-radius: 10px; background: var(--violet-pale); }
.completeness-card strong { color: var(--violet-dark); font-size: 2rem; line-height: 1; }
.completeness-card p { margin: 0; color: var(--ink-soft); font-size: .86rem; }
.completeness-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; padding: 0; margin: 0 0 20px; list-style: none; }
.completeness-list li { display: flex; align-items: baseline; justify-content: space-between; gap: 7px; padding: 8px 9px; border: 1px solid var(--line); border-radius: 7px; background: #fff; font-size: .78rem; }
.completeness-list li[data-available="true"] { border-color: #b9dacb; }
.completeness-list li[data-available="false"] { border-color: #eed0cb; }
.completeness-list strong { color: var(--ink); }
.completeness-list span { color: var(--muted); text-align: right; }
.analysis-totals { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.analysis-totals article:last-child strong { color: var(--positive); }
.incomplete-note { margin: 14px 0 0; color: var(--gold); font-size: .83rem; font-weight: 650; }
.cost-summary { margin-top: 20px; padding-top: 17px; border-top: 1px solid var(--line); }
.cost-summary h4 { margin: 0 0 9px; font-size: 1.05rem; font-weight: 550; }
.cost-summary ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; padding: 0; margin: 0; list-style: none; }
.cost-summary li { display: flex; justify-content: space-between; gap: 8px; padding: 9px; border: 1px solid var(--line); border-radius: 7px; background: #fff; color: var(--ink-soft); font-size: .79rem; }
.cost-summary strong { color: var(--ink); font-variant-numeric: tabular-nums; text-align: right; }
.issue-card { margin-top: 20px; padding-top: 17px; border-top: 1px solid var(--line); }
.issue-card h4, .paid-gate h4 { margin: 0 0 9px; font-size: 1.15rem; font-weight: 550; }
.issue-card ul { padding: 0; margin: 0; list-style: none; }
.issue-card li { margin-top: 7px; padding-left: 10px; border-left: 3px solid var(--gold); color: var(--ink-soft); font-size: .84rem; }
.issue-card li[data-severity="error"] { border-color: var(--negative); }
.issue-card li[data-severity="success"] { border-color: var(--positive); }
.paid-gate { margin-top: 24px; padding: 20px; border-radius: 11px; background: var(--ink); color: #fdfbf8; }
.paid-gate h4 { color: #fff; }
.paid-gate p:not(.eyebrow) { color: #d4d9e2; font-size: .88rem; }
.paid-gate .eyebrow { color: #c6aff1; }
.paid-gate button { width: 100%; min-height: 44px; border: 1px solid #5b6a83; border-radius: 7px; background: transparent; color: #ccd5e5; font-weight: 760; cursor: not-allowed; }
.paid-gate small { display: block; margin-top: 8px; color: #bcc6d5; }

.method-section { padding: 3px 0 72px; }
.method-section > h2 { margin-bottom: 25px; font-size: clamp(2rem, 3vw, 3rem); line-height: 1.05; font-weight: 500; letter-spacing: -.04em; }
.method-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line-strong); }
.method-grid article { padding: 23px 22px 8px 0; border-right: 1px solid var(--line-strong); }
.method-grid article + article { padding-left: 22px; }
.method-grid article:last-child { border-right: 0; }
.method-grid b { color: var(--gold); font-size: .8rem; letter-spacing: .1em; }
.method-grid h3 { margin: 8px 0 8px; font-size: 1.2rem; font-weight: 550; }
.method-grid p { color: var(--ink-soft); font-size: .93rem; }

.site-footer { display: flex; justify-content: space-between; gap: 28px; border-top: 1px solid var(--line-strong); padding: 28px 0 42px; }
.site-footer b { font-size: .84rem; letter-spacing: .1em; }
.site-footer p { margin: 4px 0 0; color: var(--muted); font-size: .83rem; }

@media (max-width: 960px) {
  .calculator-layout, .analyzer-layout { grid-template-columns: 1fr; }
  .result-surface, .analyzer-summary { min-height: auto; }
  .empty-result { min-height: 220px; }
}

@media (max-width: 680px) {
  .site-header, main, .site-footer { width: min(100% - 28px, 1200px); }
  .site-header { min-height: 66px; }
  .site-header { align-items: flex-start; flex-wrap: wrap; padding: 15px 0; }
  .site-header nav { display: flex; width: 100%; justify-content: flex-start; gap: 12px 16px; }
  .intro { padding: 22px 0 20px; }
  h1 { font-size: clamp(2.25rem, 10.8vw, 3.15rem); }
  .intro > p:not(.eyebrow) { font-size: 1rem; }
  .intro-points { gap: 5px 14px; margin-top: 15px; font-size: .88rem; }
  .section-heading { grid-template-columns: 1fr; gap: 12px; margin-bottom: 20px; }
  .tool-section { padding: 30px 0 52px; }
  .input-surface, .result-surface, .analyzer-input-surface, .analyzer-summary { padding: 20px; border-radius: 12px; }
  .field-grid.two, .field-grid.three, .decision-grid, .analysis-totals, .completeness-list, .cost-summary ul { grid-template-columns: 1fr; }
  .completeness-card { grid-template-columns: 1fr; gap: 8px; }
  .method-grid { grid-template-columns: 1fr; }
  .method-grid article, .method-grid article + article { border-right: 0; border-bottom: 1px solid var(--line-strong); padding: 19px 0; }
  .method-grid article:last-child { border-bottom: 0; }
  .site-footer { flex-direction: column; }
  .site-footer nav { justify-content: flex-start; }
}

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