:root {
  --bg: #0c0b09;
  --fg: #e8e2d6;
  --muted: #8a8274;
  --line: #2a261f;
  --card: #14110e;
  --accent: #c4a574;
  --warn: #d4a017;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --sans: "Instrument Sans", system-ui, sans-serif;
  --serif: "Instrument Serif", Georgia, serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  min-height: 100vh;
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 0;
}

header, main { position: relative; z-index: 1; }

header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--line);
  max-width: 920px;
  margin: 0 auto;
}

.mark {
  width: 1.75rem;
  height: 1.75rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--serif);
  font-size: 1rem;
}

.brand {
  font-family: var(--serif);
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.status {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

main {
  max-width: 920px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

section { margin-bottom: 3rem; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  line-height: 1.05;
  margin-bottom: 1.25rem;
}

h1 em { font-style: italic; color: var(--accent); }

.lede {
  max-width: 36rem;
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  padding: 1.25rem;
  background: var(--card);
  border: 1px solid var(--line);
}

.meta dt {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.meta dd { font-size: 0.95rem; }
.meta .warn { color: var(--warn); }

h2 {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
}

h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.25rem;
  margin-bottom: 0.4rem;
}

h3 .soft { color: var(--muted); font-size: 0.85rem; }

.body { color: var(--muted); max-width: 40rem; margin-bottom: 1rem; }

.rules, .steps, .ladder {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.rules li, .steps li, .ladder li {
  padding: 0.9rem 1rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 2px solid var(--accent);
}

.rules.dim li { border-left-color: var(--line); color: var(--muted); }

.steps { counter-reset: s; }
.steps li { counter-increment: s; position: relative; padding-left: 2.5rem; }
.steps li::before {
  content: counter(s, decimal-leading-zero);
  position: absolute;
  left: 0.85rem;
  top: 0.95rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
}

.ladder { counter-reset: l; }
.ladder li {
  counter-increment: l;
  padding-left: 2.75rem;
  position: relative;
}
.ladder li::before {
  content: "0" counter(l);
  position: absolute;
  left: 0.9rem;
  top: 0.95rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

article {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 1.15rem;
}

article p { color: var(--muted); font-size: 0.9rem; margin-bottom: 0.75rem; }

pre {
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.6;
  color: var(--fg);
  background: #0a0908;
  border: 1px solid var(--line);
  padding: 0.75rem;
  overflow-x: auto;
}

code {
  font-family: var(--mono);
  font-size: 0.85em;
  color: var(--accent);
}

footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

footer .fine {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  margin-top: 0.35rem;
  opacity: 0.8;
}

@media (max-width: 560px) {
  header { padding: 1rem; }
  main { padding: 1.75rem 1rem 3rem; }
}

pre.pepe {
  font-family: var(--mono);
  font-size: 0.68rem;
  line-height: 1.35;
  color: var(--fg);
  background: #0a0908;
  border: 1px solid var(--line);
  border-left: 2px solid var(--accent);
  padding: 1rem 1.1rem;
  overflow-x: auto;
  white-space: pre;
  margin-top: 1rem;
  color: #d8d0c0;
}