:root {
  --bg: #f4f0e8;
  --paper: #fffdf9;
  --ink: #1c1915;
  --muted: #5f584f;
  --line: #e4ddd2;
  --orange: #f7931a;
  --orange-ink: #1a1004;
  --shadow: 0 10px 30px rgba(60, 40, 10, 0.06);
  --font: "Bricolage Grotesque", "Avenir Next", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  --side: 248px;
}

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

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.5;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.skip {
  position: absolute;
  left: -999px;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 20;
  background: var(--orange);
  color: var(--orange-ink);
  padding: 0.55rem 0.75rem;
}

.shell {
  display: grid;
  grid-template-columns: var(--side) minmax(0, 1fr);
  min-height: 100vh;
}

.side {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.15rem 0.9rem 1rem;
  background: var(--paper);
  border-right: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0.25rem 0.85rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 1.05rem;
}

.brand img {
  width: 38px;
  height: 38px;
  image-rendering: pixelated;
}

.side nav {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.68rem 0.8rem;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  text-align: left;
}

.nav-btn:hover {
  background: #f6f1e8;
}

.nav-btn[aria-current="page"] {
  background: var(--orange);
  color: var(--orange-ink);
}

.nav-btn.x {
  margin-top: auto;
  border-color: var(--line);
  background: #111;
  color: #fff;
}

.nav-btn.x:hover {
  background: #2a2a2a;
  color: #fff;
}

.nav-btn svg {
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
}

.main {
  padding: 2.4rem 2.6rem 3rem;
}

.page {
  width: min(820px, 100%);
}

.kicker {
  margin: 0 0 0.55rem;
  color: #b86a08;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.lede {
  max-width: 38rem;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1.12rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 1.5rem;
  align-items: center;
}

.coin {
  width: 220px;
  justify-self: end;
  image-rendering: pixelated;
}

.cta {
  display: inline-block;
  margin-top: 1.4rem;
  background: var(--orange);
  color: var(--orange-ink);
  text-decoration: none;
  font-weight: 700;
  padding: 0.75rem 1rem;
  border-radius: 10px;
}

.cta:hover {
  background: #ffb03a;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 2rem;
}

.card,
.panel,
.step,
.limit,
.script {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
}

.card {
  display: block;
  padding: 1rem 1.05rem 1.1rem;
  text-decoration: none;
  color: inherit;
}

.card:hover {
  border-color: #efc27a;
}

.card span,
.when {
  display: block;
  color: #b86a08;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card strong {
  display: block;
  margin: 0.3rem 0 0.25rem;
  font-size: 1.35rem;
  letter-spacing: -0.04em;
}

.card p,
.panel p,
.step p,
.limit p {
  margin: 0;
  color: var(--muted);
}

.panel {
  padding: 1.15rem 1.2rem 1.25rem;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin: 1.3rem 0;
}

.after {
  background: #fff6e8;
  border-color: #f0d7ae;
}

.script {
  margin: 1.2rem 0 0;
  padding: 1.1rem 1.15rem;
  overflow-x: auto;
}

.script code {
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.7;
  white-space: pre;
}

.steps,
.limits {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.step,
.limit {
  padding: 1rem 1.1rem 1.1rem;
}

.step h2,
.limit h2,
.panel h2 {
  margin: 0 0 0.3rem;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
}

.note {
  margin: 1rem 0 0;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--orange);
  color: var(--muted);
}

.params {
  margin: 1.2rem 0 0;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.params div {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: 1rem;
  padding: 0.85rem 1.1rem;
}

.params div + div {
  border-top: 1px solid var(--line);
}

dt {
  font-weight: 700;
}

dd {
  margin: 0;
  color: var(--muted);
}

.foot {
  margin-top: 2.4rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.foot a {
  color: #9a5b08;
}

.fine {
  margin: 0.4rem 0 0;
  font-size: 0.84rem;
}

.prose {
  margin-top: 2.2rem;
  display: grid;
  gap: 0.8rem;
}

.prose h2 {
  margin: 0.8rem 0 0;
  font-size: 1.45rem;
  letter-spacing: -0.03em;
}

.prose p {
  margin: 0;
  max-width: 68ch;
  color: var(--muted);
}

.compare {
  width: 100%;
  margin-top: 0.4rem;
  border-collapse: collapse;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
  font-size: 0.92rem;
}

.compare th,
.compare td {
  text-align: left;
  padding: 0.7rem 0.85rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.compare th {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #b86a08;
}

.compare tr:last-child td {
  border-bottom: 0;
}

.page.wide {
  width: min(980px, 100%);
}

.search {
  display: flex;
  gap: 0.55rem;
  margin-top: 1.2rem;
}

.search input {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 12px;
  padding: 0.8rem 0.9rem;
  font-family: var(--mono);
  font-size: 0.86rem;
  color: var(--ink);
}

.search input:focus {
  outline: 2px solid #f0c27a;
  border-color: transparent;
}

.search button,
.hash-btn {
  border: 0;
  background: var(--orange);
  color: var(--orange-ink);
  font-family: var(--font);
  font-weight: 700;
  border-radius: 12px;
  padding: 0.8rem 1rem;
  cursor: pointer;
}

.refs {
  display: grid;
  gap: 0.55rem;
  margin-top: 1rem;
}

.ref {
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: 0.7rem;
  align-items: center;
  width: 100%;
  text-align: left;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.7rem 0.8rem;
  cursor: pointer;
  font: inherit;
  color: inherit;
}

.ref:hover {
  border-color: #efc27a;
}

.ref b {
  font-size: 0.82rem;
}

.ref code,
.mono,
.block-row code,
.tx-row code,
.field code {
  font-family: var(--mono);
  font-size: 0.78rem;
  word-break: break-all;
}

.status {
  min-height: 1.3rem;
  margin: 0.7rem 0 0;
  color: #9a5b08;
  font-size: 0.9rem;
}

.block-list,
.tx-list,
.fields {
  display: grid;
  gap: 0.5rem;
  margin-top: 1rem;
}

.block-row,
.tx-row,
.field {
  display: grid;
  gap: 0.2rem 1rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.75rem 0.85rem;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow);
}

.block-row {
  grid-template-columns: 6.2rem minmax(0, 1fr);
  align-items: center;
}

.block-row:hover,
.tx-row:hover {
  border-color: #efc27a;
}

.meta {
  color: var(--muted);
  font-size: 0.82rem;
}

.tag {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0.05rem 0.35rem;
  border-radius: 6px;
  background: #fff1dc;
  color: #9a5b08;
  font-size: 0.72rem;
  font-weight: 700;
}

.back {
  display: inline-block;
  margin-top: 1.1rem;
  color: #9a5b08;
  font-weight: 700;
  text-decoration: none;
}

.field {
  grid-template-columns: 9rem minmax(0, 1fr);
  align-items: start;
}

.field span {
  color: #b86a08;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.io {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
  margin-top: 0.8rem;
}

.io h2 {
  margin: 0 0 0.45rem;
  font-size: 1rem;
}

@media (max-width: 860px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .side {
    position: static;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .nav-btn.x {
    margin-top: 0.6rem;
  }

  .hero,
  .cards,
  .split,
  .params div,
  .ref,
  .block-row,
  .field,
  .io {
    grid-template-columns: 1fr;
  }

  .search {
    flex-direction: column;
  }

  .coin {
    width: 140px;
    justify-self: start;
  }

  .main {
    padding: 1.4rem 1rem 2rem;
  }
}