:root {
  color-scheme: dark;
  --field: #0a0f0c;
  --card: #1a2e22;
  --accent: #3d8b5a;
  --highlight: #6fcf97;
  --ink: #f4f7f4;
  --muted: #b7c9bc;
  --line: rgba(111, 207, 151, 0.28);
  --max: 1040px;
}

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

html {
  background: var(--field);
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(var(--field), var(--field)),
    linear-gradient(to right, rgba(61, 139, 90, 0.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(61, 139, 90, 0.16) 1px, transparent 1px);
  background-size: auto, 72px 72px, 72px 72px;
  background-position: 0 0, -1px -1px, -1px -1px;
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
}

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

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

a:hover {
  color: var(--ink);
}

a:focus-visible,
.button:focus-visible {
  outline: 2px solid var(--highlight);
  outline-offset: 3px;
}

.wrap {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(10, 15, 12, 0.92);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 4.5rem;
}

.brand img {
  width: 168px;
  height: auto;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}

.nav a {
  color: var(--ink);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
}

.nav a[aria-current="page"] {
  color: var(--highlight);
}

main {
  padding-block: 4.5rem 3rem;
}

.hero {
  max-width: 40rem;
}

.label {
  display: block;
  margin: 0 0 0.85rem;
  color: var(--highlight);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  font-weight: 560;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.15rem, 5vw, 3.35rem);
}

h2 {
  margin: 0 0 0.65rem;
  font-size: 1.35rem;
}

h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}

.lead,
.card p,
.step p,
.who p,
.prose p {
  color: var(--muted);
}

.lead {
  margin: 0 0 1.75rem;
  font-size: 1.15rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
}

.button {
  display: inline-block;
  border: 1px solid var(--highlight);
  background: var(--accent);
  color: var(--ink);
  padding: 0.7rem 1.15rem;
  text-decoration: none;
}

.button:hover {
  background: #2f6b45;
  color: var(--ink);
}

.section {
  margin-top: 4.5rem;
}

.steps,
.cards {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

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

.cards {
  grid-template-columns: repeat(2, 1fr);
}

.step,
.card {
  border: 1px solid var(--line);
  background: var(--card);
  padding: 1.25rem 1.25rem 1.35rem;
}

.step .index {
  display: block;
  margin-bottom: 1.25rem;
  color: var(--highlight);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
}

address {
  color: var(--muted);
  font-style: normal;
}

.who p,
.prose p,
.card p,
.step p {
  margin: 0;
}

.who p + p,
.prose address {
  margin-top: 1.25rem;
}

.prose p + p,
.card p + p {
  margin-top: 0.85rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 2rem 2.5rem;
}

.site-footer .wrap {
  display: grid;
  gap: 0.35rem 2rem;
}

.site-footer p,
.site-footer address {
  margin: 0;
  color: var(--muted);
  font-style: normal;
}

.site-footer .label {
  margin-bottom: 0.25rem;
}

@media (max-width: 800px) {
  .steps,
  .cards {
    grid-template-columns: 1fr;
  }

  .site-header .wrap {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 1rem;
  }

  main {
    padding-top: 3rem;
  }
}