:root {
  --paper: #fff;
  --page: #ececed;
  --ink: #16161a;
  --ink-soft: #4c4c55;
  --line: #e2e2e6;
  --accent: #ffce00;
  --shadow: 0 24px 70px rgba(22, 22, 26, .10);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #17171b;
    --page: #0e0e11;
    --ink: #f4f4f6;
    --ink-soft: #a5a5b0;
    --line: #2b2b32;
    --shadow: 0 24px 70px rgba(0, 0, 0, .45);
  }
}

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

body {
  margin: 0;
  padding: clamp(0px, 4vw, 56px) clamp(0px, 3vw, 40px);
  background: var(--page);
  color: var(--ink);
  font-family: "Figtree", ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.sheet {
  max-width: 740px;
  margin: 0 auto;
  padding: clamp(32px, 6vw, 64px) clamp(20px, 5vw, 64px) clamp(28px, 4vw, 44px);
  background: var(--paper);
  border-radius: clamp(0px, 2vw, 22px);
  box-shadow: var(--shadow);
}

.back {
  display: inline-block;
  margin-bottom: 28px;
  color: var(--ink-soft);
  font-size: 15px;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.back:hover { color: var(--ink); border-bottom-color: currentColor; }

h1 {
  margin: 0 0 6px;
  font-family: "Archivo", "Figtree", sans-serif;
  font-weight: 900;
  font-size: clamp(28px, 5vw, 40px);
  line-height: 1.08;
  letter-spacing: -.02em;
  text-transform: uppercase;
}

.updated {
  margin: 0 0 36px;
  color: var(--ink-soft);
  font-size: 14.5px;
}

h2 {
  margin: 38px 0 10px;
  font-family: "Archivo", "Figtree", sans-serif;
  font-weight: 800;
  font-size: clamp(18px, 2.6vw, 21px);
  line-height: 1.2;
}

h2::after {
  content: "";
  display: block;
  width: 34px;
  height: 3px;
  margin-top: 8px;
  border-radius: 999px;
  background: var(--accent);
}

p, li { color: var(--ink-soft); }
p { margin: 0 0 14px; }
ul { margin: 0 0 14px; padding-left: 20px; }
li { margin-bottom: 6px; }
strong { color: var(--ink); font-weight: 700; }
a { color: inherit; }

.card {
  margin: 0 0 14px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.card p:last-child { margin-bottom: 0; }

.foot {
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 14.5px;
}

.foot a { text-decoration: none; border-bottom: 1px solid var(--line); }
.foot a:hover { color: var(--ink); border-bottom-color: currentColor; }