/* One stylesheet for the three pages. No fonts, scripts or assets are fetched
   from anywhere, so the site works offline and adds no third parties to a
   privacy policy that promises there aren't any. */

:root {
  --bg: #f7f8f8;
  --surface: #ffffff;
  --ink: #14181a;
  --ink-soft: #5a6367;
  --line: #e3e6e7;
  --accent: #0e8f6f;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101314;
    --surface: #181c1e;
    --ink: #f2f4f4;
    --ink-soft: #9aa4a8;
    --line: #272d30;
    --accent: #35b795;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0 20px 80px;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}

main { max-width: 42rem; margin: 0 auto; }

header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 34px 0 8px;
}

.mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--accent);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
  font-size: 17px;
  flex: none;
}

header a { color: var(--ink); text-decoration: none; font-weight: 600; }

h1 { font-size: 2rem; line-height: 1.2; margin: 28px 0 6px; letter-spacing: -0.02em; }
h2 { font-size: 1.15rem; margin: 34px 0 8px; letter-spacing: -0.01em; }
h3 { font-size: 1rem; margin: 22px 0 4px; }

p, li { color: var(--ink); }
.sub, footer, .meta { color: var(--ink-soft); }
.sub { font-size: 1.05rem; margin-top: 0; }
.meta { font-size: 0.9rem; }

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

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px 22px;
  margin: 22px 0;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding: 13px 24px;
  border-radius: 999px;
  margin-top: 6px;
}

ul { padding-left: 20px; }
li { margin: 5px 0; }

table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--ink-soft); font-weight: 600; }

footer {
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
}