:root {
  --ink: #33221a;
  --paper: #fffdf6;
  --accent: #e0455e;
}
* { box-sizing: border-box; }
body {
  min-height: 100vh;
  margin: 0;
  padding: 28px 16px;
  color: var(--ink);
  background:
    repeating-linear-gradient(90deg, rgba(0,0,0,.06) 0 3px, transparent 3px 90px),
    linear-gradient(160deg, #9c6b3f, #85552d 70%);
  font-family: 'Nunito', system-ui, sans-serif;
  line-height: 1.65;
}
main {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: clamp(24px, 5vw, 48px);
  background: var(--paper);
  border: 3px solid var(--ink);
  border-radius: 26px 22px 28px 20px;
  box-shadow: 0 8px 0 rgba(51,34,26,.35), 0 14px 28px rgba(0,0,0,.25);
}
h1, h2 { line-height: 1.15; }
h1 { margin: 0 0 4px; font-family: 'Caveat', cursive; font-size: clamp(2.6rem, 8vw, 4rem); }
h2 { margin: 30px 0 8px; font-size: 1.15rem; }
p, ul { margin: 8px 0; }
.effective { color: #7a6555; font-size: .88rem; font-weight: 700; }
a { color: var(--accent); font-weight: 900; }
.back {
  display: inline-block;
  margin-bottom: 22px;
  text-decoration: none;
}