:root {
  --bg: #f4f1ea;
  --card: #fffdf8;
  --ink: #1b1b18;
  --muted: #5c5852;
  --line: #d9d2c5;
  --accent: #1f4d3a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 "Segoe UI", system-ui, sans-serif;
}

main {
  max-width: 46rem;
  margin: 0 auto;
  padding: 2rem 1.1rem 4rem;
}

article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: clamp(1.2rem, 4vw, 2.2rem);
}

h1 { line-height: 1.15; margin: 0 0 0.4rem; }
h2 { margin: 1.8rem 0 0.45rem; line-height: 1.25; }
h3 { margin: 1.2rem 0 0.3rem; }
p, ul { margin-top: 0.45rem; }
a { color: var(--accent); }
.meta { color: var(--muted); }
.back { display: inline-block; margin-bottom: 1rem; }
.notice { border-left: 4px solid var(--accent); padding-left: 1rem; }
footer { margin-top: 1.5rem; display: flex; flex-wrap: wrap; gap: 0.8rem; font-size: 0.9rem; }