:root {
  --bg: #0c100d;
  --fg: #e8eee9;
  --muted: #9aa89e;
  --line: #243028;
  --accent: #7cffb2;
  --accent-dim: #1a3d2a;
  --card: #141a16;
  --max: 44rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.55 ui-sans-serif, system-ui, "Segoe UI", sans-serif;
}

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

code,
pre {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
}

code {
  font-size: 0.88em;
  color: var(--accent);
}

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

.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 2;
  background: var(--accent);
  color: #04140a;
  padding: 0.4rem 0.7rem;
}

.wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
}

.brand {
  color: var(--fg);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
}

nav {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
}

nav a:hover,
nav a[aria-current="page"] {
  color: var(--fg);
}

.hero {
  padding: 4.2rem 0 3rem;
}

.kicker {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 700;
  margin: 0 0 0.8rem;
}

h1,
h2,
h3 {
  letter-spacing: -0.03em;
  line-height: 1.15;
}

h1 {
  font-size: clamp(2.1rem, 6vw, 3.4rem);
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.55rem;
  margin: 0 0 0.8rem;
}

.lede {
  font-size: 1.15rem;
  color: var(--muted);
  margin: 0 0 1.6rem;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #04140a;
  text-decoration: none;
  font-weight: 700;
  padding: 0.7rem 1rem;
  border-radius: 999px;
}

.btn-ghost {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--line);
}

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
}

.facts,
.checks,
.steps {
  padding: 0;
  margin: 0;
}

.facts {
  display: grid;
  gap: 0.6rem;
  list-style: none;
  color: var(--muted);
}

.facts strong {
  color: var(--fg);
}

section.wrap {
  padding: 2.4rem 0;
  border-top: 1px solid var(--line);
}

.steps {
  list-style: none;
  display: grid;
  gap: 1.1rem;
  margin-top: 1.4rem;
}

.steps li {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 1rem 1.1rem;
  border-radius: 0.7rem;
}

.steps h3,
.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

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

.split {
  display: grid;
  gap: 1.4rem;
}

.checks {
  list-style: none;
  margin-top: 1rem;
}

.checks li {
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.card {
  background: var(--accent-dim);
  border: 1px solid #2e5a40;
  padding: 1.1rem;
  border-radius: 0.7rem;
}

pre {
  overflow: auto;
  background: #080b09;
  border: 1px solid var(--line);
  padding: 1rem;
  border-radius: 0.7rem;
  font-size: 0.82rem;
  line-height: 1.45;
}

.fine {
  color: var(--muted);
  font-size: 0.92rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th,
td {
  text-align: left;
  padding: 0.65rem 0.4rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  color: var(--muted);
  font-weight: 600;
}

td a {
  word-break: break-all;
}

details {
  border-top: 1px solid var(--line);
  padding: 0.85rem 0;
}

details p {
  margin: 0.5rem 0 0;
  color: var(--muted);
}

summary {
  cursor: pointer;
  font-weight: 650;
}

.foot {
  padding: 2rem 0 3rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.foot nav {
  margin-bottom: 0.8rem;
}

@media (min-width: 800px) {
  :root {
    --max: 52rem;
  }

  .split {
    grid-template-columns: 1.3fr 0.9fr;
    align-items: start;
  }

  .facts {
    grid-template-columns: repeat(3, 1fr);
  }
}