/* A Star Computers blog */
  /* A Star Computers house style (Regna theme): slate banner, green accent, Poppins + Open Sans.
     Blog layout: site header, menu and footer come from layouts/partials.
     Single light theme like the main site, with every colour set explicitly. */
  :root {
    color-scheme: light;
    --slate: #343B40;
    --slate-2: #2A3034;
    --green: #2DC997;       /* brand accent: fills, rules, highlights */
    --green-text: #178A67;  /* same hue, dark enough for link text on white */
    --green-soft: #E8F8F2;
    --warn: #C8410E;
    --warn-soft: #FCEBE3;
    --page: #FFFFFF;
    --alt: #F7F7F7;
    --head: #111111;
    --body: #555555;
    --muted: #8A8F94;
    --rule: #E6E6E6;
    --code-bg: #F7F7F7;
    --code-ink: #2B3035;
    --poppins: "Poppins", "Segoe UI", system-ui, sans-serif;
    --opensans: "Open Sans", "Segoe UI", system-ui, sans-serif;
    --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  }
  * { box-sizing: border-box; }
  html { background: var(--page); }
  body {
    background: var(--page);
    color: var(--body);
    font: 16px/1.7 var(--opensans);
    margin: 0;
  }
  a { color: var(--green-text); text-decoration: none; }
  a:hover { text-decoration: underline; text-underline-offset: 3px; }
  a:focus-visible, button:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; border-radius: 3px; }


  /* Post banner in the slate of the header */
  .post-banner { background: linear-gradient(180deg, var(--slate) 0%, var(--slate-2) 100%); color: #FFFFFF; padding-top: env(safe-area-inset-top, 0px); }
  .post-banner .inner { max-width: 1140px; margin: 0 auto; padding: 36px 20px 44px; display: grid; gap: 14px; }
  .eyebrow { font: 500 12px/1 var(--poppins); letter-spacing: 0.12em; text-transform: uppercase; color: var(--green); }
  .post-banner h1 {
    font: 700 clamp(30px, 5vw, 46px)/1.15 var(--poppins); margin: 0; color: #FFFFFF; max-width: 22ch; text-wrap: balance;
  }
  .post-banner h1 span { color: var(--green); }
  .lede { font-size: 17px; color: #D5DADE; max-width: 66ch; margin: 0; text-wrap: pretty; }
  .facts { display: flex; flex-wrap: wrap; gap: 8px 22px; font: 13px/1.5 var(--opensans); color: #B8C0C6; }
  .facts b { color: #FFFFFF; font-weight: 600; }
  .accent-rule { height: 3px; background: var(--green); }

  .layout {
    max-width: 1140px; margin: 0 auto; padding: 40px 20px 20px;
    display: grid; grid-template-columns: 1fr; gap: 40px;
  }
  @media (min-width: 1000px) {
    .layout { grid-template-columns: 220px minmax(0, 1fr); }
    nav.toc { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 24px); align-self: start; }
  }
  nav.toc { font: 14px/1.5 var(--opensans); border-left: 3px solid var(--green); padding-left: 16px; }
  nav.toc p { font: 600 12px/1 var(--poppins); letter-spacing: 0.1em; text-transform: uppercase; color: var(--head); margin: 0 0 14px; }
  nav.toc ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; counter-reset: toc; }
  nav.toc li { counter-increment: toc; display: flex; gap: 10px; }
  nav.toc li::before { content: counter(toc, decimal-leading-zero); font: 500 12px/1.9 var(--poppins); color: var(--green-text); }
  nav.toc a { color: var(--body); }
  nav.toc a:hover { color: var(--green-text); }

  article { max-width: 760px; min-width: 0; }
  article section { padding-bottom: 18px; }
  h2 {
    font: 700 24px/1.25 var(--poppins); color: var(--head); text-transform: uppercase; letter-spacing: 0.02em;
    margin: 44px 0 16px; text-wrap: balance; scroll-margin-top: 20px;
  }
  h2::after { content: ""; display: block; width: 48px; height: 3px; background: var(--green); margin-top: 10px; }
  article section:first-child h2 { margin-top: 0; }
  h3 { font: 600 18px/1.35 var(--poppins); color: var(--head); margin: 28px 0 8px; }
  p, li { max-width: 68ch; }
  p { margin: 0 0 16px; }
  ul, ol { padding-left: 22px; margin: 0 0 16px; }
  li + li { margin-top: 6px; }
  strong { font-weight: 600; color: #333333; }
  code { font: 0.88em var(--mono); background: var(--code-bg); color: var(--code-ink); padding: 1px 5px; border-radius: 4px; border: 1px solid var(--rule); overflow-wrap: anywhere; }

  .callout { border-left: 4px solid var(--green); background: var(--green-soft); padding: 14px 18px; border-radius: 0 6px 6px 0; margin: 20px 0; }
  .callout.warn { border-left-color: var(--warn); background: var(--warn-soft); }
  .callout p { margin: 0; }

  .table-wrap { overflow-x: auto; margin: 16px 0 20px; border: 1px solid var(--rule); border-radius: 6px; background: var(--page); }
  table { border-collapse: collapse; width: 100%; font-size: 14px; }
  th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--rule); vertical-align: top; color: var(--body); }
  th { font: 600 12px/1.4 var(--poppins); letter-spacing: 0.06em; text-transform: uppercase; color: #FFFFFF; background: var(--slate); }
  tr:last-child td { border-bottom: 0; }
  tbody tr:nth-child(even) td { background: #FBFBFB; }
  td.mono, td code { font-family: var(--mono); font-variant-numeric: tabular-nums; }

  .bits { font: 13px/1 var(--mono); font-variant-numeric: tabular-nums; min-width: 640px; }
  .bits th { text-align: center; padding: 9px 4px; }
  .bits th:first-child, .bits td:first-child { text-align: left; white-space: nowrap; padding-left: 12px; }
  .bits td { text-align: center; padding: 11px 4px; border-left: 1px solid var(--rule); }
  .bits td:first-child { border-left: 0; font: 13px/1.3 var(--opensans); }
  .bits tbody tr:nth-child(even) td { background: var(--page); }
  .bits .hit-cnp { background: var(--warn-soft) !important; color: var(--warn); font-weight: 600; }
  .bits .hit-tgp { background: var(--green) !important; color: #FFFFFF; font-weight: 600; }
  .legend { font-size: 13px; color: var(--muted); margin-top: -8px; }

  .flow { list-style: none; padding: 0; margin: 18px 0; display: grid; gap: 10px; counter-reset: flow; }
  .flow li {
    counter-increment: flow; max-width: none;
    display: grid; grid-template-columns: 34px 1fr; gap: 12px; align-items: start;
    background: var(--alt); border: 1px solid var(--rule); border-radius: 6px; padding: 12px 14px;
  }
  .flow li::before {
    content: counter(flow); font: 600 14px/30px var(--poppins); text-align: center;
    width: 30px; height: 30px; border-radius: 50%; background: var(--green); color: #FFFFFF;
  }
  .flow li + li { margin-top: 0; }

  figure.code { margin: 16px 0 20px; border: 1px solid var(--rule); border-radius: 6px; background: var(--code-bg); overflow: hidden; }
  figure.code figcaption {
    display: flex; justify-content: space-between; align-items: center; gap: 12px;
    padding: 8px 8px 8px 14px; background: var(--slate); color: #E4E8EB;
    font: 500 12px/1.4 var(--mono);
  }
  figure.code pre { margin: 0; padding: 14px; overflow-x: auto; font: 13px/1.55 var(--mono); color: var(--code-ink); tab-size: 4; }
  figure.code pre code { background: none; border: 0; padding: 0; font-size: inherit; color: inherit; }
  figure.code.tall pre { max-height: 560px; overflow-y: auto; }
  button.copy {
    font: 500 11px/1 var(--poppins); letter-spacing: 0.06em; text-transform: uppercase;
    color: #FFFFFF; background: var(--green); border: 0; border-radius: 50px; padding: 7px 14px; cursor: pointer;
  }
  button.copy:hover { background: #28B386; }

  dl.status { display: grid; grid-template-columns: max-content 1fr; gap: 8px 16px; margin: 16px 0 20px; font-size: 15px; }
  dl.status dt { font: 13px/1.6 var(--mono); color: var(--head); }
  dl.status dd { margin: 0; color: var(--body); }
  @media (max-width: 560px) { dl.status { grid-template-columns: 1fr; } dl.status dd { margin-bottom: 8px; } }

  .post-footer { max-width: 1140px; margin: 24px auto 0; padding: 0 20px 48px; }
  .post-footer .inner { border-top: 3px solid var(--green); padding-top: 18px; display: grid; gap: 6px; font-size: 14px; }
  .post-footer p { margin: 0; max-width: 90ch; }
  .post-footer .note { color: var(--muted); font-size: 13px; }
  @media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }

  /* Site header, as on astarcomputers.co.uk */
  .site-header { background: var(--slate); padding-top: env(safe-area-inset-top, 0px); }
  .site-header .bar {
    max-width: 1140px; margin: 0 auto; padding-inline: 20px; min-height: 76px;
    display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 24px;
    padding-block: 12px;
  }
  .logo { font: 700 24px/1 var(--poppins); letter-spacing: 3px; text-transform: uppercase; color: #FFFFFF; }
  .logo:hover { text-decoration: none; color: #FFFFFF; }
  .site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 22px; }
  .site-nav li + li { margin-top: 0; }
  .site-nav a {
    font: 400 13px/1 var(--poppins); letter-spacing: 0.4px; text-transform: uppercase; color: #FFFFFF;
    padding-block: 8px; border-bottom: 2px solid transparent; display: inline-block;
  }
  .site-nav a:hover { text-decoration: none; color: var(--green); }
  .site-nav a[aria-current="page"] { color: var(--green); border-bottom-color: var(--green); }
  /* the banner sits under the header now */
  .post-banner { padding-top: 0 !important; }

  /* Blog index */
  .post-list { max-width: 1140px; margin: 0 auto; padding: 40px 20px 20px; display: grid; gap: 20px; }
  .post-card { background: var(--alt); border: 1px solid var(--rule); border-top: 3px solid var(--green); border-radius: 6px; padding: 22px 24px; max-width: 820px; }
  .post-card .meta { font: 500 12px/1.4 var(--poppins); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); margin: 0 0 8px; }
  .post-card h2 { margin: 0 0 10px; font-size: 22px; text-transform: none; letter-spacing: 0; }
  .post-card h2::after { display: none; }
  .post-card h2 a { color: var(--head); }
  .post-card h2 a:hover { color: var(--green-text); }
  .post-card p { margin: 0 0 14px; }
  .read-more { font: 600 12px/1 var(--poppins); letter-spacing: 0.06em; text-transform: uppercase; color: #FFFFFF; background: var(--green); border-radius: 50px; padding: 10px 18px; display: inline-block; }
  .read-more:hover { background: #28B386; color: #FFFFFF; text-decoration: none; }

  /* Site footer */
  .site-footer { background: var(--slate); color: #FFFFFF; font-size: 14px; margin-top: 48px; padding-bottom: env(safe-area-inset-bottom, 0px); }
  .site-footer .inner { max-width: 1140px; margin: 0 auto; padding: 30px 20px; display: grid; gap: 8px; text-align: center; }
  .site-footer strong { color: #FFFFFF; }
  .site-footer .note { font-size: 13px; }
  .site-footer .note a { color: #CCCCCC; }