/* Home page, "manual" look (default). */
@import url("fonts.css");
  :root {
    --paper: #f3f0e8; --sheet: #fbfaf6; --ink: #15171a; --ink-2: #3b4046; --muted: #6b6e70; --hair: #cdc6b6;
    --signal: #e8590c; --link: #0e5a61; --danger: #b8141f; --notice: #1d4a86; --tape: #ffd60a;
    --f-body: "Barlow", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
    --f-cond: "Barlow Condensed", "Barlow", "PingFang SC", sans-serif;
    --f-mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  }
  * { box-sizing: border-box; }
  body { margin: 0; padding: 36px 40px 64px; color: var(--ink); background: var(--sheet);
    font: 16px/1.55 var(--f-body); -webkit-font-smoothing: antialiased; }
  .wrap { max-width: 1000px; }
  b, strong { font-weight: 600; }

  /* cover: title + drawing-style title block */
  .kicker { font: 500 11.5px/1 var(--f-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
  h1 { font: 700 50px/1 var(--f-cond); text-transform: uppercase; letter-spacing: -.005em; margin: 12px 0 16px; }
  h1 span { font-weight: 500; color: var(--ink-2); }   /* one line: the header was half empty */
  .meta { font: 500 12.5px/1.6 var(--f-mono); color: var(--muted); margin: -10px 0 26px; }
  .hero { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin: 0 0 6px; }
  .hero-car { width: 450px; height: auto; flex: none; margin: -4px -8px -6px 0; }
  .tb { width: 100%; border-collapse: collapse; border: 2px solid var(--ink); background: #fff; margin-bottom: 34px; }
  .tb th, .tb td { border: 1px solid var(--ink); padding: 7px 12px; text-align: left; vertical-align: top; }
  .tb th { width: 128px; font: 500 11px/1.9 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); background: var(--paper); }
  .tb td { font-size: 15.5px; }
  .tb .num { font-family: var(--f-mono); font-size: 14px; }

  /* safety labels, modelled on ANSI Z535 / ISO 3864 workshop labels */
  .label { border: 2px solid var(--ink); background: #fff; margin: 0 0 18px; }
  .label .lh { display: flex; align-items: baseline; gap: 12px; padding: 7px 14px 6px; color: #fff; background: var(--ink);
    font: 700 19px/1.1 var(--f-cond); letter-spacing: .08em; text-transform: uppercase; }
  .label .lh small { font: 500 13px/1.1 var(--f-mono); letter-spacing: .08em; opacity: .85; }
  .label .lb { padding: 12px 16px 14px; }
  .label .lb p { margin: 0; }
  .label .lb p + p, .label .lb ul + p { margin-top: 8px; }
  .label ul, .label ol { margin: 6px 0; padding-left: 20px; }
  .label li { margin: 5px 0; }
  .danger { border-color: var(--danger); }
  .danger::before { content: ""; display: block; height: 10px;
    background: repeating-linear-gradient(-45deg, var(--ink) 0 11px, var(--tape) 11px 22px); }
  .danger .lh { background: var(--danger); }
  .danger .sym { font-size: 21px; line-height: 1; }
  .notice { border-color: var(--notice); }
  .notice .lh { background: var(--notice); font-style: italic; }
  .label em.side { font-style: normal; font-weight: 700; color: var(--notice); }

  /* numbered section heads */
  .sh { display: flex; align-items: baseline; gap: 14px; margin: 44px 0 14px; padding-bottom: 6px; border-bottom: 2px solid var(--ink);
    font: 700 26px/1 var(--f-cond); text-transform: uppercase; letter-spacing: .03em; }
  .sh .n { font: 500 13px/1 var(--f-mono); color: var(--signal); letter-spacing: .06em; }

  ol.how { list-style: none; counter-reset: how; margin: 0; padding: 0; }
  ol.how > li { counter-increment: how; display: grid; grid-template-columns: 44px 1fr; padding: 10px 0; border-bottom: 1px solid var(--hair); }
  ol.how > li::before { content: counter(how, decimal-leading-zero); font: 500 13px/1.9 var(--f-mono); color: var(--muted); }
  kbd { font: 500 12px/1 var(--f-mono); border: 1px solid var(--ink); padding: 2px 5px; background: #fff; }
  code { font: 13.5px var(--f-mono); }

  .offline { margin-top: 22px; }
  .offline ol { counter-reset: step; list-style: none; padding: 0; }
  .offline ol li { counter-increment: step; display: grid; grid-template-columns: 30px 1fr; }
  .offline ol li::before { content: counter(step); font: 600 12px/1 var(--f-mono); color: #fff; background: var(--ink);
    width: 20px; height: 20px; display: inline-flex; align-items: center; justify-content: center; margin-top: 2px; }
  #saveAll { font: 700 15px/1 var(--f-cond); letter-spacing: .1em; text-transform: uppercase; background: var(--ink); color: #fff;
    border: 2px solid var(--ink); padding: 11px 18px 10px; cursor: pointer; }
  #saveAll:hover { background: var(--signal); color: var(--ink); }
  #saveAll:disabled { opacity: .55; cursor: default; background: var(--ink); color: #fff; }
  #saveMsg { font: 13px var(--f-mono); color: var(--ink-2); margin-left: 12px; }

  /* printed-manual style index with dotted leaders */
  .index { columns: 3 280px; column-gap: 34px; column-rule: 1px solid var(--hair); }
  .part { break-inside: avoid; margin: 0 0 22px; }
  .part h3 { display: flex; justify-content: space-between; align-items: baseline; margin: 0 0 6px; padding-bottom: 4px;
    border-bottom: 1.5px solid var(--ink); font: 700 17px/1.1 var(--f-cond); text-transform: uppercase; letter-spacing: .05em; }
  .part h3 small { font: 400 12px var(--f-body); color: var(--muted); letter-spacing: 0; text-transform: none; }
  .part a { display: flex; align-items: baseline; gap: 6px; padding: 3px 0; color: var(--ink); text-decoration: none; font-size: 14.5px; line-height: 1.3; }
  .part a .t { flex: 0 1 auto; }
  .part a .dots { flex: 1 1 12px; border-bottom: 1.5px dotted var(--hair); transform: translateY(-4px); }
  .part a .c { font: 12.5px var(--f-mono); color: var(--muted); }
  .part a:hover .t { color: var(--link); text-decoration: underline; text-underline-offset: 3px; }
  .part a:hover .dots { border-color: var(--link); }

  .foot { margin-top: 40px; padding-top: 10px; border-top: 1px solid var(--ink); font: 12px/1.6 var(--f-mono); color: var(--muted); }

  @media (max-width: 640px) {
    body { padding: 20px 16px 48px; font-size: 15.5px; }
    .hero { flex-direction: column; align-items: flex-start; gap: 0; }
    .hero-car { order: -1; align-self: center; width: 94%; max-width: 380px; margin: -4px auto 8px; }
    h1 { font-size: 32px; }
    .tb th { width: 92px; padding: 6px 8px; }
    .tb td { padding: 6px 10px; font-size: 14.5px; }
    .label .lh { font-size: 17px; flex-wrap: wrap; row-gap: 2px; }
    .sh { font-size: 22px; margin-top: 34px; }
    #saveMsg { display: block; margin: 10px 0 0; }
  }

/* "Use with your AI": the MCP address with a copy button */
.ai .ai-url { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin: 10px 0 4px; }
.ai .ai-url code { font: 500 15px/1.3 var(--f-mono); background: var(--paper, #f3f0e8); border: 1.5px solid var(--ink); padding: 6px 10px;
  user-select: all; -webkit-user-select: all; word-break: break-all; }
#copyMcp { font: 700 14px/1 var(--f-cond); letter-spacing: .1em; text-transform: uppercase; background: var(--ink); color: #fff;
  border: 0; padding: 9px 14px; cursor: pointer; }
#copyMcp:hover { background: var(--signal); color: var(--ink); }