<style>
  :root {
    --ground:      #EDF1EC;
    --surface:     #F7F9F6;
    --ink:         #171C18;
    --ink-soft:    #4C5750;
    --ink-faint:   #7C8880;
    --rule:        #D3DBD2;
    --rule-soft:   #E2E8E1;
    --accent:      #3F6349;
    --kept:        #4E7D5C;
    --broken:      #A44F38;
    --broken-soft: #C98B78;

    --measure: 68ch;
    --step-0: 1rem;
    --step-1: 1.15rem;
    --step-2: 1.45rem;
    --step-3: 2rem;
    --step-4: 3.1rem;

    --sans: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
    --serif: "Newsreader", Georgia, "Times New Roman", serif;
    --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  }

  

  

  * { box-sizing: border-box; }

  body {
    background: var(--ground);
    color: var(--ink);
    font-family: var(--sans);
    font-size: var(--step-0);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }

  .wrap {
    max-width: 1080px;
    margin: 0 auto;
    padding-inline: 24px;
    padding-block: 0 80px;
  }

  .col { max-width: var(--measure); }

  h1, h2, h3 { text-wrap: balance; margin: 0; }

  .eyebrow {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-faint);
  }

  /* ---------- masthead ---------- */

  header {
    border-bottom: 1px solid var(--rule);
    padding-block: 56px 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
  }

  h1 {
    font-family: var(--serif);
    font-size: var(--step-4);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.02;
  }

  .standfirst {
    font-family: var(--serif);
    font-size: var(--step-2);
    line-height: 1.45;
    color: var(--ink-soft);
    max-width: 54ch;
  }

  .meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 28px;
    font-family: var(--mono);
    font-size: 0.76rem;
    color: var(--ink-faint);
  }

  .meta b { font-weight: 500; color: var(--ink-soft); }

  /* ---------- sections ---------- */

  section {
    padding-block: 52px 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
  }

  h2 {
    font-family: var(--serif);
    font-size: var(--step-3);
    font-weight: 400;
    letter-spacing: -0.01em;
  }

  h3 {
    font-size: var(--step-1);
    font-weight: 600;
    letter-spacing: -0.005em;
  }

  p { margin: 0; max-width: var(--measure); }

  a { color: var(--accent); text-underline-offset: 3px; }
  a:focus-visible, summary:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
  }

  /* ---------- the finding ---------- */

  .finding {
    border-left: 3px solid var(--accent);
    padding: 4px 0 4px 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .finding .lede {
    font-family: var(--serif);
    font-size: 1.85rem;
    line-height: 1.32;
    letter-spacing: -0.015em;
    max-width: 26ch;
  }

  .zero {
    font-family: var(--mono);
    font-size: 4.2rem;
    line-height: 1;
    font-weight: 500;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
  }

  /* ---------- table ---------- */

  .scroller { overflow-x: auto; }

  table {
    border-collapse: collapse;
    width: 100%;
    min-width: 660px;
    font-variant-numeric: tabular-nums;
  }

  caption {
    text-align: left;
    color: var(--ink-faint);
    font-size: 0.82rem;
    padding-bottom: 12px;
  }

  th, td {
    text-align: right;
    padding: 11px 14px;
    border-bottom: 1px solid var(--rule-soft);
    white-space: nowrap;
  }

  th {
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-faint);
    font-weight: 400;
    border-bottom-color: var(--rule);
  }

  th:first-child, td:first-child { text-align: left; white-space: normal; }

  td.name { font-weight: 500; }
  td.host {
    font-family: var(--mono);
    font-size: 0.74rem;
    color: var(--ink-faint);
  }
  td.num { font-family: var(--mono); }
  td.lead { color: var(--kept); font-weight: 500; }
  tr.pending td { color: var(--ink-faint); font-style: italic; }

  /* ---------- run matrix ---------- */

  .matrix { display: flex; flex-direction: column; gap: 14px; }

  .mrow { display: flex; flex-direction: column; gap: 5px; }

  .mlabel {
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--ink-soft);
    display: flex;
    justify-content: space-between;
    gap: 16px;
  }
  .mlabel span:last-child { color: var(--ink-faint); }

  .cells { display: flex; gap: 2px; min-width: 0; }

  .cells i {
    flex: 1 1 0;
    min-width: 2px;
    height: 24px;
    border-radius: 1px;
    background: var(--kept);
    opacity: 0.55;
  }
  .cells i.x { background: var(--broken); opacity: 1; }
  .cells i.n { background: var(--rule); opacity: 1; }
  .cells i.e { background: var(--ink-faint); opacity: 1; }
  .cells i.a { background: var(--rule-soft); border: 1px solid var(--rule); opacity: 1; }

  .legend {
    display: flex;
    gap: 22px;
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--ink-faint);
    flex-wrap: wrap;
  }
  .legend span { display: inline-flex; align-items: center; gap: 7px; }
  .legend b {
    width: 11px; height: 11px; border-radius: 1px; display: inline-block;
  }

  /* ---------- difficulty bars ---------- */

  .bars {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 560px;
  }
  .bar { display: grid; grid-template-columns: 74px 1fr 52px; align-items: center; gap: 14px; }
  .bar .k { font-family: var(--mono); font-size: 0.78rem; color: var(--ink-soft); }
  .bar .track { height: 12px; background: var(--rule-soft); border-radius: 2px; overflow: hidden; }
  .bar .fill { height: 100%; background: var(--kept); border-radius: 2px; }
  .bar .fill.low { background: var(--broken); }
  .bar .v {
    font-family: var(--mono); font-size: 0.86rem; text-align: right;
    font-variant-numeric: tabular-nums;
  }


  /* ---------- version pairs ---------- */
  .pairs { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--rule); max-width: 620px; }
  .pair {
    display: grid; grid-template-columns: 1fr auto 1fr 76px;
    align-items: center; gap: 14px;
    padding: 16px 0; border-bottom: 1px solid var(--rule-soft);
  }
  .pair .v { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
  .pair .vn { font-size: 0.9rem; font-weight: 500; }
  .pair .vs { font-family: var(--mono); font-size: 1.15rem; font-variant-numeric: tabular-nums; }
  .pair .arrow { font-family: var(--mono); color: var(--ink-faint); font-size: 1rem; }
  .pair .delta {
    font-family: var(--mono); font-size: 0.95rem; text-align: right;
    font-variant-numeric: tabular-nums; font-weight: 500;
  }
  .delta.up { color: var(--kept); }
  .delta.down { color: var(--broken); }
  .pair .lab { font-family: var(--mono); font-size: 0.66rem; letter-spacing: .1em;
               text-transform: uppercase; color: var(--ink-faint); }
  @media (max-width: 560px) {
    .pair { grid-template-columns: 1fr 1fr; gap: 10px 14px; }
    .pair .arrow { display: none; }
    .pair .delta { grid-column: 1 / -1; text-align: left; }
  }

  /* ---------- lists ---------- */

  ul { margin: 0; padding-left: 1.1rem; max-width: var(--measure); display: flex; flex-direction: column; gap: 9px; }
  li::marker { color: var(--ink-faint); }

  .tasks {
    list-style: none; padding: 0; gap: 0;
    max-width: 480px; border-top: 1px solid var(--rule-soft);
  }
  .tasks li {
    display: flex; justify-content: space-between; gap: 18px;
    padding: 9px 0; border-bottom: 1px solid var(--rule-soft);
    font-family: var(--mono); font-size: 0.82rem;
  }
  .tasks li b { font-weight: 500; color: var(--broken); font-variant-numeric: tabular-nums; }

  /* ---------- limitations ---------- */

  .limits {
    background: var(--surface);
    border: 1px solid var(--rule);
    border-radius: 3px;
    padding: 28px 30px;
    display: flex; flex-direction: column; gap: 16px;
  }
  .limits h2 { font-size: var(--step-2); }

  code {
    font-family: var(--mono);
    font-size: 0.86em;
    background: var(--rule-soft);
    padding: 1px 5px;
    border-radius: 2px;
  }

  .fingerprint {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--ink-soft);
    background: var(--surface);
    border: 1px solid var(--rule);
    border-radius: 3px;
    padding: 14px 16px;
    overflow-x: auto;
    white-space: nowrap;
  }

  footer {
    margin-top: 64px;
    padding-top: 26px;
    border-top: 1px solid var(--rule);
    font-size: 0.84rem;
    color: var(--ink-faint);
    display: flex; flex-direction: column; gap: 6px;
  }

  @media (max-width: 620px) {
    :root { --step-4: 2.3rem; --step-3: 1.6rem; }
    .finding .lede { font-size: 1.4rem; }
    .zero { font-size: 3.2rem; }
    .bar { grid-template-columns: 62px 1fr 46px; }
  }
</style>