:root { --paper: #eadfc9; --card: #fdf8f0; --ink: #313131; --ink2: #4a4741; --line: #a19d94; --blue: #243fa5; }
  * { box-sizing: border-box; }
  body { margin: 0; background: var(--paper); color: var(--ink); font: 400 17px/1.65 "Geist", system-ui, sans-serif;
    background-image: linear-gradient(rgba(49,49,49,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(49,49,49,.06) 1px, transparent 1px); background-size: 26px 26px; }
  main { max-width: 46rem; margin: 0 auto; padding: 48px 16px 80px; }
  a { color: var(--blue); }
  .back { font: 400 14px/1 "Geist Mono", monospace; text-decoration: none; display: inline-block; border: 1px solid var(--line); background: var(--card); padding: 10px 14px; }
  h1 { font: 500 clamp(2rem, 6vw, 3.2rem)/1.02 "Geist", sans-serif; letter-spacing: -.045em; margin: 28px 0 8px; }
  .date { font: 400 14px/1 "Geist Mono", monospace; color: var(--ink2); }
  article { background: var(--card); border: 1px solid var(--line); box-shadow: 6px 6px 0 rgba(49,49,49,.08); padding: clamp(20px, 5vw, 44px); margin-top: 28px; }
  h2 { font: 500 1.3rem/1.2 "Geist", sans-serif; letter-spacing: -.02em; margin: 2rem 0 .5rem; }
  h2:first-child { margin-top: 0; }
  p, li { color: var(--ink2); }
  ul { padding-left: 1.2rem; }
  table { width: 100%; border-collapse: collapse; font-size: 15px; margin: .6rem 0; }
  th, td { text-align: left; vertical-align: top; padding: 10px 8px; border-bottom: 1px solid #d6c8ad; }
  th { color: var(--ink); font-weight: 500; }