:root {
  --color-bg: #f9fafb;
  --color-surface: #ffffff;
  --color-text: #111827;
  --color-text-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-focus: #3b82f6;
  --color-error: #dc2626;
  --color-error-bg: #fef2f2;
  --color-success: #059669;
  --color-success-bg: #ecfdf5;
  --color-warning: #d97706;
  --color-warning-bg: #fffbeb;
  --color-footer-bg: #111827;
  --color-footer-text: #d1d5db;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --radius: 0.375rem;
  --radius-lg: 0.75rem;
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  width: 100%;
  max-width: 72rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 640px) {
  .container { padding-left: 1.5rem; padding-right: 1.5rem; }
}

@media (min-width: 1024px) {
  .container { padding-left: 2rem; padding-right: 2rem; }
}

/* Skip link */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Header */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem;
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
  font-size: 1.125rem;
}

.logo-mark {
  color: var(--color-primary);
  font-size: 1.25rem;
}

.nav-link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-link:hover {
  color: var(--color-text);
}

.nav-link:focus-visible,
.btn:focus-visible,
.demo-cell:focus-visible,
.demo-select:focus-visible,
.waitlist-input:focus-visible {
  outline: 2px solid var(--color-primary-focus);
  outline-offset: 2px;
}

/* Hero */
.hero {
  padding: 4rem 0 3rem;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.hero-eyebrow {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin: 0 0 1rem;
  color: var(--color-text);
}

@media (min-width: 640px) {
  .hero-title { font-size: 3rem; }
}

.hero-accent {
  color: var(--color-primary);
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 40rem;
  margin: 0 0 1.5rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.hero-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
  user-select: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-bg);
}

.btn-small {
  padding: 0.25rem 0.75rem;
  font-size: 0.8125rem;
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-border);
  color: var(--color-text-muted);
}

.btn-outline:hover {
  background-color: var(--color-bg);
  color: var(--color-text);
}

/* Sections */
.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin: 0 0 0.5rem;
  color: var(--color-text);
}

.section-subtitle {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin: 0 0 2rem;
}

/* Features */
.features {
  padding: 3rem 0;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .features-grid { grid-template-columns: repeat(4, 1fr); }
}

.feature-card {
  padding: 1.25rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.feature-title {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--color-text);
}

.feature-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.5;
}

/* Demo */
.demo-section {
  padding: 3rem 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.demo-app {
  max-width: 56rem;
  margin: 0 auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg);
  overflow: hidden;
}

.demo-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.demo-toolbar-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.demo-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.demo-select {
  font-size: 0.8125rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-surface);
  color: var(--color-text);
}

.demo-grid-wrap {
  overflow-x: auto;
  padding: 1rem;
}

.demo-grid {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
  min-width: 600px;
}

.demo-grid th,
.demo-grid td {
  padding: 0.375rem 0.5rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.demo-grid th {
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--color-surface);
}

.demo-cell {
  width: 100%;
  padding: 0.25rem 0.375rem;
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius) - 2px);
  font-size: 0.8125rem;
  background-color: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition);
}

.demo-cell:focus {
  border-color: var(--color-primary-focus);
}

.demo-select-cell {
  min-width: 120px;
}

.demo-cell--error {
  border-color: var(--color-error);
  background-color: var(--color-error-bg);
}

.demo-cell--error:focus {
  border-color: var(--color-error);
  outline-color: var(--color-error);
}

.demo-row--error .demo-cell {
  border-color: var(--color-error);
}

.demo-tooltip {
  position: relative;
}

.demo-tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 0;
  margin-bottom: 4px;
  padding: 0.25rem 0.5rem;
  background-color: #1f2937;
  color: #ffffff;
  font-size: 0.75rem;
  border-radius: var(--radius);
  white-space: nowrap;
  z-index: 10;
  pointer-events: none;
}

.demo-paste-zone {
  padding: 1rem;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.demo-paste-label {
  display: block;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.demo-paste-input {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  background-color: var(--color-bg);
  color: var(--color-text);
  resize: vertical;
  min-height: 80px;
}

.demo-paste-input:focus {
  border-color: var(--color-primary-focus);
  outline: 2px solid var(--color-primary-focus);
  outline-offset: 2px;
}

.demo-help {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin: 0.375rem 0 0.75rem;
}

.demo-status {
  min-height: 1.5rem;
  padding: 0 1rem;
  font-size: 0.8125rem;
}

.demo-status--success { color: var(--color-success); }
.demo-status--error   { color: var(--color-error); }
.demo-status--warning { color: var(--color-warning); }

.demo-counter {
  padding: 0.75rem 1rem;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.demo-counter progress {
  flex: 1;
  min-width: 120px;
  height: 0.5rem;
  border-radius: 9999px;
  overflow: hidden;
  -webkit-appearance: none;
  appearance: none;
}

.demo-counter progress::-webkit-progress-bar {
  background-color: var(--color-border);
  border-radius: 9999px;
}

.demo-counter progress::-webkit-progress-value {
  background-color: var(--color-primary);
  border-radius: 9999px;
  transition: width var(--transition);
}

.demo-counter progress::-moz-progress-bar {
  background-color: var(--color-primary);
  border-radius: 9999px;
}

/* Pricing */
.pricing {
  padding: 3rem 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 40rem;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid .pricing-card--featured { transform: scale(1.02); }
}

.pricing-card {
  padding: 1.5rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  text-align: center;
}

.pricing-card--featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.pricing-tier {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--color-text);
}

.pricing-price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 1rem;
}

.pricing-period {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  text-align: left;
}

.pricing-features li {
  padding: 0.25rem 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-note {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* Waitlist */
.waitlist {
  padding: 3rem 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.waitlist-form {
  display: flex;
  gap: 0.75rem;
  max-width: 28rem;
  margin: 0 auto 1rem;
  flex-wrap: wrap;
}

.waitlist-input {
  flex: 1;
  min-width: 200px;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.875rem;
  background-color: var(--color-bg);
  color: var(--color-text);
}

.waitlist-message {
  min-height: 1.25rem;
  font-size: 0.875rem;
  text-align: center;
  margin: 0 0 0.5rem;
}

.waitlist-message--success { color: var(--color-success); }
.waitlist-message--error   { color: var(--color-error); }

.waitlist-privacy {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* Footer */
.site-footer {
  padding: 2rem 0;
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  text-align: center;
}

.footer-text {
  font-size: 0.875rem;
  margin: 0 0 0.5rem;
}

.footer-link {
  color: var(--color-footer-text);
  text-decoration: underline;
}

.footer-link:hover {
  color: #ffffff;
}

.footer-legal {
  font-size: 0.75rem;
  color: #9ca3af;
  margin: 0;
}

/* Utility */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Ledger / 28 September: an editorial product surface, separate from the portfolio. */
:root{--color-bg:#f2efdf;--color-surface:#fbf9ed;--color-text:#142c26;--color-text-muted:#4e6158;--color-border:#bdc5b4;--color-primary:#245746;--color-primary-hover:#153c2e;--color-primary-focus:#245746;--color-footer-bg:#142c26;--color-footer-text:#f2efdf;--radius:.15rem;--radius-lg:.3rem;--shadow:none;--shadow-md:none}
html{scroll-behavior:smooth;scroll-padding-top:6rem}body{background:var(--color-bg)}a,button,input,textarea,select{touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #b45b28;outline-offset:4px}
.skip-link{position:fixed;left:1rem;top:-6rem;z-index:100;background:var(--color-text);color:var(--color-bg);padding:1rem}.skip-link:focus{top:1rem}.site-header{background:#f2efdf;border-bottom:1px solid var(--color-border)}.nav{max-width:90rem;margin:auto;min-height:80px;padding-inline:clamp(1.25rem,5vw,5rem)}.nav-logo{color:var(--color-text);gap:.7rem}.logo-mark{color:var(--color-primary);font-size:2rem}.logo-text{display:grid;font-size:1.1rem;letter-spacing:-.04em}.logo-text small{font:10px var(--font-mono);letter-spacing:.06em;text-transform:uppercase;margin-top:.2rem}.nav-link{min-height:44px;display:flex;align-items:center}
.container{max-width:80rem;padding-inline:clamp(1.25rem,5vw,5rem)}.hero{max-width:90rem;margin:auto;padding:6rem clamp(1.25rem,5vw,5rem) 7rem;display:grid;grid-template-columns:1.12fr 1fr;gap:2.5rem;text-align:left;align-items:center;overflow:clip;isolation:isolate}.hero>.container{padding:0;max-width:none}.hero-eyebrow,.section-kicker{font:11px/1.6 var(--font-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--color-primary)}.hero-title{font-family:Georgia,'Times New Roman',serif;font-size:clamp(3rem,5.6vw,6.2rem);font-weight:400;letter-spacing:-.055em;line-height:1.02;max-width:12ch;margin:1.2rem 0 1.8rem}.hero-title em{color:var(--color-primary);font-weight:400}.hero-description{font-size:1.05rem;line-height:1.7;max-width:40ch;margin:0;color:var(--color-text-muted)}.hero-actions{justify-content:flex-start;margin-top:2rem;gap:.75rem}.hero-note{font:11px/1.6 var(--font-mono);margin-top:1.3rem;color:var(--color-text-muted)}.btn{min-height:46px;border-radius:2px;padding:.8rem 1.2rem;font-weight:600}.btn-primary{box-shadow:none}.btn-secondary,.btn-outline{background:transparent;border-color:var(--color-border);color:var(--color-text)}
.ledger-art{position:relative;min-height:470px;margin:0;padding-top:1rem;--travel:0px}.ledger-sheet{position:relative;border:1px solid var(--color-border);background:var(--color-surface);padding:1.3rem 1.4rem;box-shadow:8px 12px 0 #dce1d1;will-change:transform}.ledger-source{width:89%;transform:translateY(calc(var(--travel)*-.5)) rotate(-5deg);z-index:1}.ledger-result{width:91%;margin:3.5rem 0 0 auto;transform:translateY(var(--travel)) rotate(3deg);background:#e4ead8;z-index:2}.sheet-label{font:10px/1.6 var(--font-mono);letter-spacing:.09em;display:block;margin-bottom:1.2rem}.mini-row{display:grid;grid-template-columns:1fr 60px 65px;gap:.5rem;padding:.85rem 0;border-top:1px solid var(--color-border);font:12px/1.3 var(--font-mono)}.mini-row b{font-weight:500}.mini-row i{font-style:normal;color:var(--color-primary);text-align:right}.ledger-result p{font-size:12px;margin-top:1.5rem}.ledger-arrow{position:absolute;top:42%;left:45%;font:70px Georgia;z-index:3;color:var(--color-primary)}.ledger-art figcaption{font:11px/1.6 var(--font-mono);margin:2rem 0 0 1rem;color:var(--color-text-muted)}
.features,.demo-section,.pricing,.readiness{padding:5rem 0}.features{background:var(--color-text);color:var(--color-bg)}.section-title,.readiness h2{font:400 clamp(2rem,3.2vw,3.4rem)/1.13 Georgia,serif;letter-spacing:-.035em;text-align:left;margin:0 0 1.6rem}.section-subtitle{text-align:left;max-width:62ch;margin:0 0 2.5rem;color:var(--color-text-muted)}.features-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem 4rem;counter-reset:feature}.feature-card{padding:1.5rem 0 0;background:transparent;border:0;border-top:1px solid #658075;border-radius:0;box-shadow:none;counter-increment:feature}.feature-card::before{content:'0' counter(feature);font:11px var(--font-mono);color:#bfceb1}.feature-title{color:var(--color-bg);font-size:1.1rem;margin:1rem 0 .6rem}.feature-desc{color:#d5dccb;max-width:47ch;line-height:1.65}.demo-section{background:#e5e8d9}.demo-app{border:1px solid #a1b19b;border-radius:3px;box-shadow:12px 12px 0 #ccd6bf;overflow:hidden}.demo-toolbar{background:#d8e1c9;border-bottom:1px solid var(--color-border)}.demo-paste-zone{background:var(--color-surface)}.demo-grid-wrap{overflow-x:auto;overscroll-behavior-x:contain}.demo-grid{min-width:760px}.demo-grid input,.demo-grid select{min-height:44px}.demo-grid th{background:#edf0e3;color:var(--color-text)}.demo-paste-input{background:#fffef7}.demo-status{font-size:14px}.demo-counter{background:#edf0e3}.pricing{background:var(--color-bg)}.pricing-grid{max-width:none;gap:2rem}.pricing-card{border:1px solid var(--color-border);border-radius:2px;box-shadow:none;text-align:left}.pricing-card--featured{background:#e4ead8;border:1px solid var(--color-primary)}.pricing-tier{font:12px var(--font-mono);text-transform:uppercase;letter-spacing:.1em}.pricing-price{font:3.5rem Georgia,serif}.pricing-note{line-height:1.6}.readiness{border-top:1px solid var(--color-border)}.readiness-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem;margin:2rem 0 3rem}.readiness p{max-width:56ch;line-height:1.7;color:var(--color-text-muted)}.text-link{display:inline-flex;align-items:center;min-height:44px;color:var(--color-primary);text-underline-offset:5px}.readiness details{padding:1.2rem 0;border-top:1px solid var(--color-border)}.readiness summary{cursor:pointer;min-height:44px;display:list-item;font-weight:600;line-height:1.6}.site-footer{padding:2.5rem 0}.footer-text,.footer-legal{color:#d5dccb}.footer-link{color:#f2efdf}
@media(max-width:900px){.hero{grid-template-columns:1fr;padding-top:3rem;gap:3rem}.hero-title{max-width:18ch;font-size:clamp(3.3rem,8.5vw,5.5rem)}.hero-description{max-width:55ch}.ledger-art{max-width:550px;width:100%;margin:auto;min-height:440px}.features-grid{gap:2rem}.hero-actions{flex-wrap:wrap}}
@media(max-width:560px){.hero{padding-bottom:3rem}.hero-title{font-size:3.5rem}.ledger-art{min-height:390px}.ledger-sheet{padding:1rem}.mini-row{grid-template-columns:1fr 35px 50px;font-size:10px}.features-grid,.pricing-grid,.readiness-grid{grid-template-columns:1fr}.features,.demo-section,.pricing,.readiness{padding:3rem 0}.demo-toolbar{align-items:stretch;gap:1rem}.demo-toolbar-group{flex-wrap:wrap}.demo-paste-zone{padding:1rem}.demo-app{box-shadow:5px 5px 0 #ccd6bf}.readiness-grid{gap:1.5rem}.hero-actions .btn{font-size:13px}.nav{padding-inline:1.25rem}.logo-text{font-size:1rem}.nav-link{font-size:13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.ledger-sheet{transform:none!important;will-change:auto}}

.checkout-teaser{padding-block:3rem;border-top:1px solid var(--color-border)}.checkout-teaser p{max-width:60ch;line-height:1.7}.checkout-page{max-width:52rem;padding-block:4rem}.checkout-lead{font-size:1.1rem;line-height:1.75;max-width:55ch}.checkout-panel{background:var(--color-surface);border:1px solid var(--color-border);padding:clamp(1.2rem,4vw,2rem);margin:2rem 0;line-height:1.75}.checkout-panel h2{font:1.45rem Georgia,serif}.checkout-page details{padding:1rem 0;line-height:1.7}.checkout-page summary{cursor:pointer;min-height:44px;font-weight:600}.checkout-panel form{margin-top:1rem}.checkout-panel [hidden]{display:none}