:root{--bg:#0c0e12;--panel:#12151c;--line:#232836;--ink:#e8e6df;--dim:#9aa3b2;
    --accent:#5eead4;--hot:#f6c453;--mono:"SF Mono",ui-monospace,Menlo,Consolas,monospace;--serif:Georgia,"Times New Roman",serif;}
  *{margin:0;padding:0;box-sizing:border-box}
  body{background:var(--bg);color:var(--ink);font-family:var(--serif);line-height:1.7;font-size:18px}
  a{color:var(--accent)}
  .wrap{max-width:720px;margin:0 auto;padding:0 24px}
  .topbar{border-bottom:1px solid var(--line);padding:20px 0;font-family:var(--mono);font-size:13px}
  .topbar a{text-decoration:none;color:var(--dim)}
  .topbar a:hover{color:var(--accent)}
  main{padding:52px 0 40px}
  h1{font-size:clamp(30px,6vw,46px);line-height:1.1;letter-spacing:-.01em;margin:34px 0 10px}
  h2{font-size:clamp(24px,4.5vw,32px);line-height:1.15;margin:44px 0 8px}
  h3{font-family:var(--mono);font-size:14px;letter-spacing:.08em;text-transform:uppercase;color:var(--hot);margin:38px 0 6px}
  p{margin:18px 0}
  em{color:#f0eee6}
  strong{color:#fff}
  blockquote{border-left:3px solid var(--accent);padding:4px 0 4px 22px;margin:24px 0;color:var(--ink);font-style:italic}
  code{font-family:var(--mono);font-size:.86em;background:var(--panel);border:1px solid var(--line);border-radius:4px;padding:1px 6px}
  pre{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:18px;overflow-x:auto;margin:22px 0}
  pre code{background:none;border:none;padding:0;font-size:13px;line-height:1.6}
  hr{border:none;border-top:1px solid var(--line);margin:52px 0}
  table{border-collapse:collapse;width:100%;margin:22px 0;font-size:15px}
  /* Wide tables must scroll inside themselves, never push the page sideways (mobile: a
     470px table in a 375px viewport produced 119px of horizontal body overflow). */
  @media (max-width:640px){
    table{display:block;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
  }
  table:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
  th,td{border:1px solid var(--line);padding:8px 12px;text-align:left}
  th{font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--dim)}
  ul{margin:14px 0 22px;padding-left:1.25em}
  li{margin:10px 0}
  ol{margin:14px 0 22px;padding-left:1.35em}
  ol li{margin:12px 0}
  .lede{color:var(--dim);font-size:17px;margin:0 0 8px}
  .cta{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:30px;margin:56px 0 20px;text-align:center}
  .cta p{margin:0 0 18px}
  .cta .btns{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
  .btn{display:inline-block;padding:13px 24px;border-radius:6px;font-family:var(--mono);font-size:14px;text-decoration:none;background:var(--accent);color:#08251f;font-weight:700}
  .btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line);font-weight:400}
  footer{border-top:1px solid var(--line);padding:34px 0 64px;color:var(--dim);font-family:var(--mono);font-size:12.5px;line-height:1.8}
  @media (max-width: 480px) {
    .wrap { padding: 0 16px; }
    body { font-size: 16.5px; line-height: 1.65; }
    .topbar .wrap { display: flex; justify-content: space-between; align-items: center; }
    .topbar-subtitle { display: none; } /* Drop the middle dot separator text */
    .btn-sample { width: 100%; box-sizing: border-box; }
  }
/* W2 book-M1 bis (2026-10-09) — extracted from inline style="..." attrs on
   checklist.html to satisfy sitewide strict CSP (no unsafe-inline). */
.checklist-related-wrap{margin-top:20px;font-size:13px;color:var(--ink-muted);line-height:1.7}
.checklist-related-link{color:var(--accent)}