:root {
  --bg: #f6f3ee;
  --surface: #fffdf9;
  --ink: #1d2224;
  --muted: #5b6467;
  --line: #e2dcd2;
  --accent: #1f6b5c;
  --accent-ink: #ffffff;
  --measure: 40rem;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16191a;
    --surface: #1e2224;
    --ink: #ece8e1;
    --muted: #a3aaad;
    --line: #2f3437;
    --accent: #6cc4ad;
    --accent-ink: #0f1a17;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

a { color: var(--accent); text-underline-offset: 0.15em; }

.bar, main, .foot {
  max-width: calc(var(--measure) + 2rem);
  margin: 0 auto;
  padding: 0 1rem;
}

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
}

.mark {
  color: var(--ink);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}

nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1.1rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--ink); }

main { padding-bottom: 3rem; }

h1, h2, h3 { line-height: 1.25; letter-spacing: -0.01em; }
h1 { font-size: 2rem; margin: 1.5rem 0 0.5rem; }
h2 { font-size: 1.35rem; margin: 2.5rem 0 0.5rem; scroll-margin-top: 1rem; }
h3 { font-size: 1.1rem; margin: 1.75rem 0 0.25rem; scroll-margin-top: 1rem; }

p, ul, ol { margin: 0.6rem 0; }
ul, ol { padding-left: 1.3rem; }
li { margin: 0.25rem 0; }
li > ul, li > ol { margin: 0.25rem 0; }

code {
  font: 0.88em ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0 0.25em;
}

table {
  display: block;
  overflow-x: auto;
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.94rem;
}
th, td { text-align: left; vertical-align: top; padding: 0.5rem 0.75rem 0.5rem 0; border-bottom: 1px solid var(--line); }
th { font-weight: 600; }

.foot {
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
  padding-bottom: 2.5rem;
  color: var(--muted);
  font-size: 0.94rem;
}
.foot p { margin: 0.75rem 0 0; }

/* the home page */

.hero { padding: 2.5rem 0 1rem; }
.hero h1 { font-size: clamp(2.1rem, 7vw, 3rem); margin: 0 0 1rem; }
.hero .lede { font-size: 1.2rem; color: var(--muted); margin: 0 0 1.5rem; }

.badge {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: 999px;
  padding: 0.55rem 1.1rem;
  font-weight: 600;
}

.steps { list-style: none; padding: 0; margin: 1rem 0; display: grid; gap: 0.75rem; }
.steps li {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  margin: 0;
}
.steps strong { display: block; margin-bottom: 0.2rem; }