:root { color-scheme: light; --paper: #f6f5f1; --ink: #171918; --muted: #535956; --line: #b8bdb8; --blue: #184e69; --surface: #e7e9e3; --note: #edf1f1; }
    * { box-sizing: border-box; }
    body { margin: 0; color: var(--ink); background: var(--paper); font: 1rem/1.8 system-ui, -apple-system, sans-serif; }
    a { color: var(--blue); text-underline-offset: .2em; }
    a:hover { text-decoration-thickness: 2px; }
    a:focus-visible, summary:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; }
    .skip { position: absolute; top: -5rem; left: 1rem; padding: .5rem; background: var(--paper); }
    .skip:focus { top: 1rem; }
    .wrap { width: min(100% - 2.5rem, 72rem); margin: auto; }
    header { border-bottom: 1px solid var(--line); padding: 1.2rem 0; }
    nav { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
    nav div { display: flex; gap: 1.2rem; }
    main { padding: 3rem 0 4rem; }
    article { max-width: 58rem; margin: auto; scroll-margin-top: 1.5rem; }
    article + article { margin-top: 5rem; padding-top: 3rem; border-top: 2px solid var(--ink); }
    .eyebrow { font-size: .78rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; color: var(--muted); }
    h1, h2, h3 { line-height: 1.25; letter-spacing: -.025em; }
    h1 { font-size: clamp(2.2rem, 6vw, 4rem); margin: .5rem 0 1rem; }
    h2 { font-size: 1.55rem; margin: 2.8rem 0 1rem; }
    h3 { font-size: 1.15rem; margin: 1.8rem 0 .6rem; }
    .lede { max-width: 45rem; font-size: 1.2rem; }
    p { margin: .7rem 0 1.2rem; }
    ol, ul { padding-left: 1.5rem; }
    li { margin: .5rem 0; }
    code { font-size: .91em; }
    pre { margin: 1rem 0; padding: 1rem 1.2rem; overflow-x: auto; background: var(--surface); border: 1px solid var(--line); line-height: 1.6; }
    pre code { font-size: .86rem; }
    .note { padding: 1rem 1.2rem; border-left: 3px solid var(--blue); background: var(--note); }
    .pipeline { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); }
    .pipeline div { padding: 1rem; min-width: 0; }
    .pipeline div + div { border-left: 1px solid var(--line); }
    .pipeline b { display: block; }
    .pipeline span { font-size: .88rem; color: var(--muted); }
    .table-scroll { overflow-x: auto; }
    table { width: 100%; border-collapse: collapse; font-size: .94rem; }
    th, td { border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; padding: .7rem .5rem; }
    th { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; }
    .key { font-weight: 650; white-space: nowrap; }
    .sources { font-size: .9rem; }
    footer { padding: 1.5rem 0 2rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
    @media (max-width: 40rem) {
      .wrap { width: min(100% - 1.6rem, 72rem); }
      main { padding-top: 2rem; }
      #title-ja { font-size: clamp(1.6rem, 8vw, 2rem); }
      .pipeline { grid-template-columns: 1fr 1fr; }
      .pipeline div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
      .pipeline div:nth-child(4) { border-top: 1px solid var(--line); }
      th, td { padding: .6rem .35rem; }
      .key { white-space: normal; }
    }
    @media print {
      body { background: var(--paper); }
      header, footer, .skip { display: none; }
      .wrap { width: 100%; }
      main { padding: 0; }
      article { max-width: none; }
      article + article { break-before: page; }
      h2, h3 { break-after: avoid; }
      pre, .pipeline, tr { break-inside: avoid; }
    }

:root[data-theme="dark"]{color-scheme:dark;--paper:#191f20;--ink:#eef0e9;--muted:#bdc9c7;--line:#687a77;--blue:#a9d8ec;--surface:#273133;--note:#263a40;}
@media(prefers-color-scheme:dark){:root:not([data-theme]){color-scheme:dark;--paper:#191f20;--ink:#eef0e9;--muted:#bdc9c7;--line:#687a77;--blue:#a9d8ec;--surface:#273133;--note:#263a40;}}

.theme-control{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;font-size:.8rem;min-width:0}.theme-control label{color:var(--muted)}.theme-control select{font:inherit;color:var(--ink);background:var(--paper);border:1px solid var(--line);min-height:42px;padding:.4rem .6rem;max-width:100%}.theme-control [role="status"]{flex-basis:100%;max-width:30rem;color:var(--muted);font-size:.75rem}.masthead{flex-wrap:wrap}.lab-appearance{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;margin-top:1rem}