:root {
  --k-granito: #17191c;
  --k-basalto: #2b2f33;
  --k-ardosia: #5b636b;
  --k-xisto: #9aa1a6;
  --k-calcario: #d3d7d6;
  --k-feldspato: #eceeeb;
  --k-oxido: #c2461b;
  --k-oxido-prof: #a33a14;
  --k-oxido-claro: #e8703f;
  --k-malaquita: #1a6f56;
  --bg: var(--k-feldspato);
  --surface: #f6f7f5;
  --fg: var(--k-granito);
  --muted: var(--k-ardosia);
  --line: var(--k-calcario);
  --line-strong: var(--k-xisto);
  --accent: var(--k-oxido-prof);
  --plate: #e2e5e2;
  --f-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --f-body: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  color-scheme: light;
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
}

html[data-theme="dark"] {
  --bg: var(--k-granito);
  --surface: #1f2225;
  --fg: var(--k-feldspato);
  --muted: var(--k-xisto);
  --line: var(--k-basalto);
  --line-strong: var(--k-ardosia);
  --accent: var(--k-oxido-claro);
  --plate: #24272b;
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme]) {
    --bg: var(--k-granito);
    --surface: #1f2225;
    --fg: var(--k-feldspato);
    --muted: var(--k-xisto);
    --line: var(--k-basalto);
    --line-strong: var(--k-ardosia);
    --accent: var(--k-oxido-claro);
    --plate: #24272b;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body { margin: 0; -webkit-font-smoothing: antialiased; }

a { color: var(--accent); }

:focus-visible { outline: 2px solid var(--k-oxido); outline-offset: 3px; }

.mark { display: block; color: inherit; }

.wordmark {
  font-family: var(--f-display);
  font-weight: 800;
  font-stretch: 125%;
  letter-spacing: 0.06em;
  line-height: 1;
}

.bar, footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 12px 6vw;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
}

.bar { position: sticky; top: 0; z-index: 4; }

footer {
  border-bottom: 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  text-decoration: none;
  font-family: var(--f-display);
  font-weight: 800;
  font-stretch: 125%;
  letter-spacing: 0.08em;
  font-size: 15px;
}

.bar nav, footer nav { display: flex; gap: 4px; }

.bar nav a, footer a {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  padding: 4px 8px;
}

.bar nav a:hover, footer a:hover { color: var(--fg); background: var(--plate); }

.wrap { width: min(1120px, calc(100% - 12vw)); margin: 0 auto; }

.cover {
  position: relative;
  overflow: hidden;
  background: var(--k-granito);
  color: var(--k-feldspato);
}

.cover-lines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(0deg, transparent 0 39px, rgba(236, 238, 235, 0.04) 39px 40px);
  pointer-events: none;
}

.cover-strata { position: absolute; right: -4%; top: 8%; width: min(52vw, 640px); height: auto; }
.cover-strata rect { fill: var(--k-basalto); }
.cover-strata .core { fill: var(--k-oxido); }

.cover .wrap {
  position: relative;
  z-index: 1;
  min-height: min(720px, 86vh);
  display: grid;
  align-content: end;
  gap: 28px;
  padding-block: 72px 56px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.cover .eyebrow,
.signup .eyebrow { color: var(--k-xisto); }

.eyebrow .slab { width: 28px; height: 6px; background: var(--k-oxido); }

.cover h1 {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-stretch: 125%;
  letter-spacing: 0.04em;
  line-height: 0.9;
  font-size: clamp(72px, 12vw, 148px);
}

.cover .lead {
  max-width: 36rem;
  margin: 0;
  font-family: var(--f-display);
  font-weight: 300;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.25;
  color: var(--k-calcario);
}

.row { display: flex; flex-wrap: wrap; gap: 10px; }

.button, button {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 2px;
  padding: 10px 16px;
  background: var(--k-oxido-prof);
  color: var(--k-feldspato);
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
}

.button.quiet {
  background: transparent;
  color: var(--k-feldspato);
  border-color: var(--k-ardosia);
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 48px 0;
}

.facts article, .guide section {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 24px;
}

.facts h2, .guide h2, .signup h2 {
  margin: 0 0 10px;
  font-family: var(--f-display);
  font-weight: 700;
  font-stretch: 108%;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.facts h2 { font-size: 22px; }

.facts p, .guide p { margin: 0 0 12px; max-width: 65ch; }

.facts p:last-child, .guide p:last-child { margin-bottom: 0; }

.facts p, .guide .muted, .signup p { color: var(--muted); }

code, pre { font-family: var(--f-mono); }

code { font-size: 0.88em; background: var(--plate); padding: 1px 5px; }

pre {
  overflow: auto;
  margin: 14px 0;
  padding: 16px 18px;
  background: var(--k-granito);
  color: var(--k-feldspato);
  font-size: 13px;
  line-height: 1.55;
}

.layout {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 36px;
  padding: 36px 0 64px;
}

.toc {
  position: sticky;
  top: 64px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.toc a {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  padding: 6px 0;
}

.toc a:hover { color: var(--fg); }

.guide h2 { font-size: clamp(32px, 4vw, 44px); }

.guide h3 {
  margin: 18px 0 6px;
  font-family: var(--f-display);
  font-size: 18px;
  font-stretch: 108%;
}

.guide section { margin-bottom: 16px; }

.doc-shell {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) 168px;
  gap: 36px;
  width: min(1240px, calc(100% - 8vw));
  margin: 0 auto;
  padding: 32px 0 72px;
}

.side, .onpage {
  position: sticky;
  top: 72px;
  align-self: start;
  max-height: calc(100vh - 88px);
  overflow: auto;
}

.side { display: flex; flex-direction: column; gap: 22px; }

.side h2, .onpage h2 {
  margin: 0 0 8px;
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--k-xisto);
}

.side a, .onpage a {
  display: block;
  padding: 4px 0 4px 10px;
  border-left: 2px solid transparent;
  color: var(--muted);
  text-decoration: none;
  font-size: 14.5px;
  line-height: 1.35;
}

.side a.here, .onpage a:hover, .side a:hover {
  color: var(--fg);
  border-left-color: var(--k-oxido);
}

.tag {
  margin-left: 6px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--k-oxido);
}

.doc h1 {
  margin: 10px 0 12px;
  font-family: var(--f-display);
  font-weight: 800;
  font-stretch: 112%;
  letter-spacing: -0.02em;
  line-height: 0.95;
  font-size: clamp(40px, 5vw, 64px);
}

.doc .lede {
  margin: 0 0 8px;
  max-width: 62ch;
  font-size: 19px;
  line-height: 1.45;
  color: var(--muted);
}

.doc h2 {
  margin: 40px 0 10px;
  font-family: var(--f-display);
  font-weight: 700;
  font-stretch: 108%;
  letter-spacing: -0.015em;
  line-height: 1.15;
  font-size: clamp(26px, 3vw, 34px);
}

.doc h3 {
  margin: 22px 0 6px;
  font-family: var(--f-display);
  font-size: 18px;
  font-weight: 650;
  font-stretch: 108%;
}

.doc p, .doc li { max-width: 68ch; }

.doc p { margin: 0 0 12px; }

.doc ul, .doc ol { margin: 0 0 16px; padding-left: 1.25em; }

.doc li { margin: 4px 0; }

.doc a { font-weight: 500; }

.steps { list-style: none; padding: 0; margin: 8px 0 20px; }

.steps > li {
  position: relative;
  margin: 0 0 22px;
  padding-left: 52px;
  max-width: 72ch;
}

.steps > li::before {
  content: counter(step, decimal-leading-zero);
  counter-increment: step;
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--k-oxido);
}

.steps { counter-reset: step; }

table.grid {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0 22px;
  font-size: 15px;
}

table.grid th, table.grid td {
  text-align: left;
  vertical-align: top;
  padding: 9px 12px;
  border-bottom: 1px solid var(--line);
}

table.grid th {
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

table.grid code { white-space: nowrap; }

.note {
  margin: 16px 0;
  padding: 14px 16px;
  background: var(--surface);
  border-left: 3px solid var(--k-oxido);
}

.note.later { border-left-color: var(--k-ardosia); }

.note p:last-child { margin-bottom: 0; }

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 18px 0 8px;
}

.cards a {
  display: block;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
}

.cards a:hover { border-color: var(--k-oxido); }

.cards strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--f-display);
  font-weight: 700;
  font-stretch: 108%;
  font-size: 18px;
}

.cards span { color: var(--muted); font-size: 15px; }

.stack { list-style: none; padding: 0; margin: 16px 0 22px; }

.stack li {
  max-width: none;
  margin: 0;
  padding: 14px 16px 14px 18px;
  border-left: 3px solid var(--k-oxido);
  background: var(--surface);
}

.stack li + li { margin-top: 8px; }

.stack strong {
  display: block;
  font-family: var(--f-display);
  font-stretch: 108%;
  font-size: 16px;
}

.pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.pager a {
  color: var(--fg);
  text-decoration: none;
  font-family: var(--f-display);
  font-weight: 650;
  font-stretch: 108%;
}

.pager a span {
  display: block;
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.pager .next { margin-left: auto; text-align: right; }

.signup {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
  align-items: end;
  margin: 0 0 56px;
  padding: 32px;
  background: var(--k-granito);
  color: var(--k-feldspato);
}

.guide .signup {
  background: var(--k-granito);
  color: var(--k-feldspato);
  border: 0;
}

.signup h2 { font-size: clamp(32px, 4vw, 48px); font-weight: 800; font-stretch: 112%; }

.signup p { margin: 0; color: var(--k-calcario); }

.signup .eyebrow { margin-bottom: 14px; }

form { display: flex; flex-wrap: wrap; gap: 8px; }

label.hp { position: absolute; left: -10000px; height: 0; overflow: hidden; }

input[type="email"] {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--k-ardosia);
  border-radius: 2px;
  padding: 10px 12px;
  background: var(--k-feldspato);
  color: var(--k-granito);
  font: inherit;
}

.signup button { background: var(--k-oxido-prof); color: var(--k-feldspato); }

button.theme {
  background: transparent;
  color: var(--fg);
  border-color: var(--line-strong);
  padding: 6px 10px;
}

button.theme[aria-pressed="true"] { border-color: var(--k-oxido); }

.status { flex-basis: 100%; min-height: 1.3rem; margin: 4px 0 0; font-family: var(--f-mono); font-size: 12px; }

.status.ok { color: #7dceb0; }

.status.err { color: var(--k-oxido-claro); }

@media (max-width: 980px) {
  .doc-shell { grid-template-columns: 1fr; width: min(1120px, calc(100% - 12vw)); }
  .doc { order: 1; }
  .side { order: 2; }
  .side, .onpage { position: static; max-height: none; }
  .onpage { display: none; }
  .cards { grid-template-columns: 1fr; }
  .cover-strata { opacity: 0.22; }
}

@media (max-width: 800px) {
  .facts, .layout, .signup { grid-template-columns: 1fr; }
  .toc { position: static; flex-direction: row; flex-wrap: wrap; gap: 8px 14px; }
  .bar, footer { align-items: flex-start; }
  .cover-strata { opacity: 0.22; }
}