:root {
  --bg: #f2ede3;
  --surface: #faf7f0;
  --ink: #17160f;
  --ink-2: #2b2920;
  --gray: #57524a;
  --gray-soft: #7f7a70;
  --line: #cfc6b3;
  --line-soft: #ded6c5;
  --blue: #3a45c9;
  --blue-soft: #e7e9f8;
  --dark: #14130e;
  --dark-line: rgba(255, 255, 255, 0.14);
  --dark-fg: #efeadf;
  --dark-muted: #9d9689;

  --serif: 'Instrument Serif', Georgia, 'Times New Roman', serif;
  --sans: 'Geist', 'Helvetica Neue', Arial, sans-serif;
  --mono: 'Geist Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --frame: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, p, ul, ol, dl, dd, pre { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; padding: 0; }
canvas { display: block; }
code { font-family: var(--mono); font-size: 0.92em; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

.frame { max-width: var(--frame); margin: 0 auto; padding: 0 24px; }

.small { font-size: 15px; color: var(--ink-2); max-width: 52ch; }
.muted { color: var(--gray); }
.small + .small { margin-top: 12px; }
.small a, .lead a, .kv a { text-underline-offset: 3px; text-decoration-color: var(--gray-soft); }
.small a:hover, .lead a:hover, .kv a:hover { text-decoration-color: var(--ink); }

.label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--gray);
}

.num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--gray-soft);
}

.note { font-size: 13px; color: var(--gray); line-height: 1.5; }

/* Top bar */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(242, 237, 227, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.topbar .frame {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 64px;
}

.wordmark {
  font-family: var(--serif);
  font-size: 28px;
  text-decoration: none;
  line-height: 1;
  letter-spacing: -0.01em;
}

.topnav { display: flex; gap: 28px; }

.topnav a {
  font-size: 15px;
  color: var(--gray);
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
}

.topnav a:hover { color: var(--ink); }
.topnav a[aria-current='page'] { color: var(--ink); border-bottom-color: var(--ink); }

.topbar-right { display: flex; align-items: center; gap: 20px; }

.topnav-x {
  font-family: var(--mono);
  font-size: 15px;
  color: var(--gray);
  text-decoration: none;
  padding: 6px 2px;
}

.topnav-x:hover { color: var(--ink); }

.rate-link {
  font-family: var(--mono);
  font-size: 13px;
  text-decoration: none;
  color: var(--ink-2);
  white-space: nowrap;
}

.rate-link:hover { color: var(--blue); }

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 20px;
  border-radius: 2px;
  background: var(--ink);
  color: var(--surface);
  border: 1px solid var(--ink);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  line-height: 1;
  white-space: nowrap;
}

.btn:hover { background: #000; border-color: #000; }
.btn:disabled { background: transparent; border-color: var(--line); color: var(--gray-soft); cursor: default; }
.btn-lg { height: 50px; padding: 0 24px; }
.btn-sm { height: 36px; padding: 0 14px; font-size: 14px; }

.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--surface); }
.btn.is-connected { font-family: var(--mono); font-weight: 400; }
.btn.is-error { color: var(--blue); border-color: var(--blue); background: transparent; }

.textlink {
  font-size: 15px;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--gray-soft);
  white-space: nowrap;
}

.textlink:hover { text-decoration-color: var(--ink); }

/* Hero: the globe fills the band, the words sit on top of it */

.hero {
  position: relative;
  min-height: min(820px, calc(100vh - 64px));
  display: grid;
  place-items: center;
  border-bottom: 1px solid var(--line);
  cursor: crosshair;
  touch-action: none;
  overflow: hidden;
}

.hero canvas { position: absolute; inset: 0; width: 100%; height: 100%; }

.hero-copy {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
  padding: 72px 24px;
  max-width: 880px;
  pointer-events: none;
}

.hero-copy a, .hero-copy button { pointer-events: auto; }

.kicker {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-2);
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(52px, 7.2vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.025em;
}

.lead {
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink-2);
  max-width: 56ch;
  text-wrap: balance;
}

.cta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 8px; }

.hero-toggle { position: absolute; right: 24px; bottom: 20px; }

.hero-hint {
  position: absolute;
  left: 24px;
  bottom: 20px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--gray-soft);
  pointer-events: none;
}

/* Pre-launch notice */

.notice {
  margin: 24px 0 0;
  padding: 14px 18px;
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: 14px;
  color: var(--ink-2);
}

.notice strong { font-weight: 500; }

/* Tooltip on a term */

.tip { position: relative; text-decoration: underline dotted var(--gray-soft); text-underline-offset: 3px; cursor: help; }

.tip-body {
  display: none;
  position: absolute;
  left: 0;
  top: calc(100% + 8px);
  z-index: 5;
  width: 320px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-2);
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.5;
}

.tip:hover .tip-body, .tip:focus .tip-body { display: block; }

/* Estimator result */

.result { display: flex; flex-direction: column; gap: 4px; padding: 20px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.result-big { font-family: var(--serif); font-size: 52px; line-height: 1; letter-spacing: -0.02em; }
.result-big span { color: var(--blue); }
.result-sub { font-family: var(--mono); font-size: 13px; color: var(--gray); }
.panel > .note { margin-top: 16px; }
.panel .note strong { font-weight: 500; color: var(--ink); }

.math { margin-top: 16px; border-top: 1px solid var(--line-soft); }
.math summary { list-style: none; cursor: pointer; padding: 12px 0; font-family: var(--mono); font-size: 13px; color: var(--ink-2); }
.math summary::-webkit-details-marker { display: none; }
.math summary::before { content: '+ '; color: var(--gray-soft); }
.math[open] summary::before { content: '\2013 '; }
.math pre { font-family: var(--mono); font-size: 13px; line-height: 1.7; padding: 4px 0 8px; color: var(--ink-2); overflow-x: auto; }

.assumptions { margin-top: 8px; }
.flow-list.stack { grid-template-columns: 1fr; gap: 20px; margin-top: 8px; }
.panel .diagram { margin: 16px 0 0; padding: 16px; }
.docs-nav .label { margin-top: 12px; }
.docs-nav .label:first-child { margin-top: 0; }

/* Sections are ruled, not boxed */

.rule { padding: 64px 0; border-bottom: 1px solid var(--line); }
.notice + .rule { border-top: 0; }

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 64px;
  align-items: start;
}

.two-col > * { min-width: 0; }

.section-head { display: flex; flex-direction: column; gap: 16px; }
.section-head-row { display: flex; flex-direction: column; gap: 8px; margin-bottom: 32px; }

.section-head h2, .section-head-row h2, .closing h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 44px;
  line-height: 1.04;
  letter-spacing: -0.02em;
}

.section-head .small { font-size: 16px; }
.section-head .small + .small { margin-top: 0; }

/* Panels: one hairline, no radius, no shadow */

.panel, .status {
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 24px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.panel-head strong { color: var(--ink); font-weight: 500; }

.panel-rate { display: flex; flex-direction: column; gap: 6px; }

.panel-big {
  font-family: var(--serif);
  font-size: 72px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--blue);
}

.panel-unit { font-family: var(--mono); font-size: 13px; color: var(--ink-2); }
.panel .note { margin-top: 12px; }

.panel-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 20px 0;
}

.panel-form label { display: flex; flex-direction: column; gap: 6px; min-width: 0; }

.field {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: var(--bg);
  font-family: var(--mono);
  font-size: 15px;
}

.field:focus-within { border-color: var(--ink); }
.field input { flex: 1; width: 100%; min-width: 0; border: 0; background: none; font: inherit; color: var(--ink); outline: none; }
.field em { font-style: normal; color: var(--gray-soft); font-size: 12px; }

/* Key-value lists: the one table style used everywhere */

.kv div {
  display: grid;
  grid-template-columns: minmax(140px, 2fr) 3fr;
  gap: 16px;
  padding: 10px 0;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
}

.kv dt { color: var(--gray); }
.kv dd { font-family: var(--mono); font-size: 13px; color: var(--ink); }
.kv dd strong { font-weight: 500; color: var(--blue); font-size: 15px; }
.kv .kv-total { border-top: 1px solid var(--line); }
.kv .kv-total dd strong { font-size: 24px; }
.kv-table { border: 1px solid var(--line); background: var(--surface); padding: 4px 20px; }
.kv-table div:first-child { border-top: 0; }
.bar { color: var(--blue); letter-spacing: -0.05em; }

/* Mechanism */

.diagram {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
  padding: 20px 24px;
  border: 1px solid var(--line);
  background: var(--surface);
  overflow-x: auto;
  margin-bottom: 32px;
}

.diagram span { color: var(--blue); }

.flow-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.flow-list li { display: flex; gap: 12px; }
.flow-list li > .num { padding-top: 3px; }
.flow-list h3 { font-size: 16px; font-weight: 500; }
.flow-list p { margin-top: 6px; font-size: 14px; color: var(--gray); }

/* Segmented control, range */

.seg { display: inline-flex; }

.seg button {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--gray);
  padding: 7px 10px;
  border: 1px solid var(--line);
  margin-left: -1px;
  line-height: 1;
  background: var(--surface);
}

.seg button:first-child { margin-left: 0; }
.seg button:hover { color: var(--ink); }
.seg button[aria-pressed='true'], .seg button[aria-selected='true'] { color: var(--surface); background: var(--ink); border-color: var(--ink); position: relative; }

.tabs-seg { margin-bottom: 12px; }

.range {
  width: 100%;
  margin: 8px 0 20px;
  appearance: none;
  height: 1px;
  background: var(--line);
  outline: none;
}

.range::-webkit-slider-thumb {
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ink);
}

.range::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: var(--ink); border: 0; }

/* Code */

.code { border: 1px solid var(--dark); background: var(--dark); color: var(--dark-fg); }

.code-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  border-bottom: 1px solid var(--dark-line);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dark-muted);
}

.code-head button { font-family: var(--mono); font-size: 12px; color: var(--dark-muted); padding: 4px 0; }
.code-head button:hover { color: var(--dark-fg); }

.code pre, .block {
  padding: 18px 16px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
}

.block { margin: 20px 0; border: 1px solid var(--line); background: var(--surface); }
.code pre .c { color: var(--dark-muted); }
.code pre .k { color: #b7bdff; }

/* FAQ */

.faq { border: 1px solid var(--line); background: var(--surface); }
.faq details + details { border-top: 1px solid var(--line-soft); }

.faq summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px 20px;
  font-size: 16px;
  cursor: pointer;
}

.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-family: var(--mono); color: var(--gray-soft); }
.faq details[open] summary::after { content: '\2013'; color: var(--ink); }
.faq details p { padding: 0 20px 16px; color: var(--gray); font-size: 14px; max-width: 64ch; }

/* Closing */

.closing {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 96px 0;
}

.closing h2 { font-size: clamp(40px, 5vw, 60px); }
.closing .small { text-align: center; font-size: 16px; max-width: 46ch; }
.closing .cta { justify-content: center; }

/* Toggle */

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--gray);
  cursor: pointer;
  user-select: none;
}

.toggle input { position: absolute; opacity: 0; width: 0; height: 0; }

.switch {
  width: 30px;
  height: 16px;
  border-radius: 8px;
  background: var(--line);
  position: relative;
}

.switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--surface);
  transition: transform 120ms;
}

.toggle input:checked + .switch { background: var(--ink); }
.toggle input:checked + .switch::after { transform: translateX(14px); }
.toggle input:focus-visible + .switch { outline: 2px solid var(--blue); outline-offset: 2px; }

/* Footer */

.footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 56px;
  border-bottom: 0;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--gray);
}

.footer a { text-decoration: none; }
.footer a:hover { color: var(--ink); }

/* Inner pages */

.titlebar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  padding: 40px 0 24px;
  border-bottom: 1px solid var(--line);
}

.titlebar h1, .h-serif {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 44px;
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.h-serif { font-size: 30px; margin: 48px 0 16px; }
.h-serif:first-child { margin-top: 0; }
.ticker { color: var(--blue); }
.meta { font-family: var(--mono); font-size: 12px; color: var(--gray); white-space: nowrap; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--line); }

.stat {
  padding: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.stat + .stat { padding-left: 24px; border-left: 1px solid var(--line-soft); }
.stat-label { font-size: 14px; color: var(--gray); }
.stat-value { font-family: var(--mono); font-size: 20px; overflow: hidden; text-overflow: ellipsis; }
.stat-value.big { font-family: var(--serif); font-size: 44px; line-height: 1; color: var(--blue); }

.table {
  width: 100%;
  table-layout: fixed;
  overflow-wrap: anywhere;
  border-collapse: collapse;
  font-size: 14px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.table th, .table td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.table tr:last-child td { border-bottom: 0; }
.table th { font-weight: 400; font-family: var(--mono); color: var(--gray); font-size: 12px; }
.table td code { color: var(--blue); }
.table .empty td { color: var(--gray); padding: 20px 14px; }

.docs { display: grid; grid-template-columns: 200px 1fr; gap: 48px; }

.docs-nav {
  padding: 40px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: sticky;
  top: 64px;
  align-self: start;
}

.docs-nav a { font-size: 14px; color: var(--gray); text-decoration: none; }
.docs-nav a:hover, .docs-nav a.is-active { color: var(--ink); }

.docs-body { padding: 40px 0 96px; max-width: 760px; min-width: 0; }
.docs-body section + section { margin-top: 48px; padding-top: 40px; border-top: 1px solid var(--line); }
.docs-body h2 { font-family: var(--serif); font-weight: 400; font-size: 32px; line-height: 1.1; margin-bottom: 14px; }
.docs-body .small { max-width: 68ch; font-size: 16px; }
.docs-body .small.muted { font-size: 14px; }
.docs-body .table { margin-top: 16px; }

.ledger-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 64px; }
.ledger-main { padding: 40px 0 96px; }
.ledger-side { padding: 40px 0 96px; }
.ledger-side .steps { margin-bottom: 24px; }
.steps li + li { margin-top: 20px; }
.steps h3 { font-size: 16px; font-weight: 500; }
.steps p { margin-top: 4px; color: var(--gray); font-size: 14px; max-width: 46ch; }

.dotbox {
  min-height: 240px;
  margin-bottom: 40px;
  border: 1px solid var(--line);
  background-color: var(--surface);
  background-image: radial-gradient(var(--line-soft) 1px, transparent 1px);
  background-size: 10px 10px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 16px;
}

.ledger { background: var(--surface); border: 1px solid var(--line); padding: 12px 16px; margin-bottom: 12px; }
.ledger .row { display: flex; justify-content: space-between; gap: 16px; font-size: 14px; color: var(--gray); }
.ledger .row + .row { margin-top: 6px; }
.ledger .row .v { font-family: var(--mono); color: var(--ink); }

.dotbox-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 10px 14px;
}

.status { font-size: 14px; }
.dotbox-foot .status { border: 0; padding: 0; background: none; color: var(--gray); }

.convert {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 20px;
  align-items: end;
  max-width: 560px;
  margin-bottom: 16px;
}

.convert label { display: flex; flex-direction: column; gap: 8px; font-size: 14px; color: var(--gray); }

.convert input {
  font: inherit;
  font-family: var(--mono);
  font-size: 20px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  width: 100%;
}

.convert input:focus { outline: 0; border-color: var(--ink); }
.convert-eq { font-family: var(--mono); color: var(--gray); padding-bottom: 16px; font-size: 18px; }

/* Ledger page actions */

.dotbox-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.claim-form { display: flex; gap: 12px; align-items: end; flex-wrap: wrap; margin-bottom: 12px; }
.claim-form label { display: flex; flex-direction: column; gap: 6px; }
.claim-form .field { width: 220px; }
.key-reveal { margin: 8px 0 32px; padding: 24px; border: 2px solid var(--ink); background: var(--surface); display: flex; flex-direction: column; gap: 16px; }
.key-reveal-head { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.key-value { display: block; font-family: var(--mono); font-size: 20px; line-height: 1.4; padding: 14px 16px; border: 1px solid var(--line); background: var(--bg); overflow-wrap: anywhere; user-select: all; }
.key-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.key-usage { display: flex; flex-direction: column; gap: 8px; padding-top: 16px; border-top: 1px solid var(--line-soft); }
.key-usage pre { font-family: var(--mono); font-size: 13px; line-height: 1.7; padding: 14px 16px; background: var(--dark); color: var(--dark-fg); overflow-x: auto; }
.key-usage .btn { align-self: flex-start; }
.table .right { text-align: right; }
[data-ledger-section] { margin-top: 8px; }

/* Responsive */

@media (max-width: 960px) {
  .topnav { display: none; }
  .hero { min-height: 640px; }
  .hero-copy { padding: 72px 24px; }
  .hero h1 { font-size: clamp(44px, 11vw, 64px); }
  .hero-hint { display: none; }
  .rule { padding: 48px 0; }
  .two-col { grid-template-columns: 1fr; gap: 32px; }
  .section-head h2, .section-head-row h2 { font-size: 36px; }
  .flow-list { grid-template-columns: 1fr 1fr; gap: 28px; }
  .panel-big { font-size: 56px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(2n + 1) { padding-left: 0; border-left: 0; }
  .stat:nth-child(-n + 2) { border-bottom: 1px solid var(--line-soft); }
  .docs { grid-template-columns: 1fr; gap: 0; }
  .docs-nav { position: static; flex-direction: row; flex-wrap: wrap; gap: 8px 18px; padding: 20px 0; border-bottom: 1px solid var(--line); }
  .ledger-grid { grid-template-columns: 1fr; gap: 0; }
  .ledger-main { padding-bottom: 40px; }
  .convert { grid-template-columns: 1fr; }
  .convert-eq { display: none; }
  .footer { flex-direction: column; gap: 8px; }
  .meta { white-space: normal; overflow-wrap: anywhere; }
}

@media (max-width: 600px) {
  .rate-link { display: none; }
  .panel-form { grid-template-columns: 1fr; }
  .flow-list { grid-template-columns: 1fr; }
  .kv div { grid-template-columns: 1fr; gap: 2px; }
  .cta { flex-direction: column; width: 100%; }
  .cta .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}