/* Type system: the 1990-92 Unix documentation set.
       Oswald SemiBold  — display; the wordmark artwork is cut from this face.  SIL OFL 1.1.
       Arimo            — body; Helvetica-metric, the face AT&T/USL manuals and box covers were
                          set in, and an X11 core font of the period.  Apache 2.0.
       Cousine          — Courier-metric, for paths and code.  Apache 2.0.
     All self-hosted, latin subsets; no third-party requests. */
  @font-face { font-family: "Oswald"; font-style: normal; font-weight: 600; font-display: swap;
               src: url(/font/oswald-600-latin.woff2) format("woff2"); }
  @font-face { font-family: "Arimo"; font-style: normal; font-weight: 400; font-display: swap;
               src: url(/font/arimo-400-latin.woff2) format("woff2"); }
  @font-face { font-family: "Arimo"; font-style: normal; font-weight: 700; font-display: swap;
               src: url(/font/arimo-700-latin.woff2) format("woff2"); }
  @font-face { font-family: "Cousine"; font-style: normal; font-weight: 400; font-display: swap;
               src: url(/font/cousine-400-latin.woff2) format("woff2"); }

  :root {
    --bg: #000;
    --fg: #c9c9c9;
    --hi: #fff;
    --dim: #8b8b8b;
    --faint: #6a6a6a;
    --rule: #262626;
    --red: #d62d2d;          /* the wordmark's single accent; rules only, never text */
    --sans: Arimo, Helvetica, "Helvetica Neue", "Liberation Sans", Arial, sans-serif;
    --display: Oswald, "Arial Narrow", Impact, var(--sans);
    --mono: Cousine, "Courier New", "Liberation Mono", monospace;
  }
  html, body { margin: 0; background: var(--bg); }
  body {
    color: var(--fg);
    font-family: var(--sans);
    font-size: 1.0625rem;
    line-height: 1.68;
    padding: 2.5rem 1.25rem 3.5rem;
    box-sizing: border-box;
    -webkit-text-size-adjust: 100%;
  }
  /* Text stays at a reading width; tables and terminal blocks use the wider column (owner 2026-10-13). */
  main { max-width: 64rem; margin: 0 auto; }
  main > * { max-width: 44rem; }
  main > .tbl, main > .term { max-width: none; }

  /* ---- header: the box cover, flush left as it was printed ---- */
  header { margin-bottom: 2.75rem; }
  header img { display: block; width: 318px; max-width: 100%; height: auto; }
  .tagline {
    font-family: var(--display);
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-size: clamp(0.7rem, 2.1vw, 0.85rem);
    color: var(--dim);
    margin: 1.1rem 0 0;
  }

  /* ---- headings ---- */
  h2 {
    font-family: var(--display);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    font-weight: 600;
    color: var(--hi);
    font-size: clamp(1.25rem, 3.4vw, 1.6rem);
    margin: 3rem 0 1rem;
  }
  h2::before {                      /* the cover's red rule, in section-heading size */
    content: "";
    display: block;
    width: 2.75rem; height: 4px;
    background: var(--red);
    margin-bottom: 0.85rem;
  }
  h3 {
    font-family: var(--display);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--dim);
    margin: 2rem 0 0.6rem;
  }

  p { margin: 0 0 1.1rem; }
  b, strong { color: var(--hi); font-weight: 700; }
  a { color: var(--hi); text-decoration: none; border-bottom: 1px solid #4a4a4a; }
  a:hover { border-bottom-color: var(--red); }
  code { font-family: var(--mono); font-size: 0.9em; color: var(--hi); }
  .byline { color: var(--faint); }

  ul { margin: 0 0 1.1rem; padding-left: 1.15rem; }
  li { margin: 0.4rem 0; }
  li::marker { color: #4a4a4a; }

  /* ---- the callout ---- */
  .note {
    border-left: 4px solid var(--red);
    padding: 0.15rem 0 0.15rem 1.25rem;
    margin: 2.25rem 0 0.5rem;
  }
  .note h3 { color: var(--hi); margin-top: 0; }
  .note p:last-child { margin-bottom: 0; }

  /* ---- the one green element: a real terminal, where a terminal belongs ----
     Green is the screen, red is the print; they never share a job.  Kept to
     this block so the wordmark's red accent is never fighting it. */
  .term {
    font-family: var(--mono);
    font-size: 0.9rem;
    line-height: 1.55;
    color: #35d95a;
    background: #060a06;
    border-left: 3px solid #1f7a37;
    padding: 0.85rem 1rem;
    margin: 1.2rem 0 0;
    white-space: pre;
    overflow-x: auto;
  }
  .term .u { color: #9dffb5; }          /* what you type */

  /* ---- the demos ---------------------------------------------------------
     A pixel display: never let the browser smooth it.  aspect-ratio holds the
     box before the video loads, so nothing jumps as the page settles. */
  .demo { margin: 1.75rem 0 0; }
  .demo video {
    display: block; width: 100%; max-width: 720px; height: auto;
    aspect-ratio: 1440 / 1136;
    background: #000; border: 1px solid var(--rule);
    image-rendering: pixelated;
  }
  .demo img { display: block; width: 100%; max-width: 720px; height: auto; image-rendering: pixelated; }
  .demo figcaption {
    margin-top: 0.5rem; color: var(--dim);
    font-size: 0.85rem; line-height: 1.5;
  }
  .demo figcaption b { color: var(--fg); font-weight: 400; }

  /* ---- repository lists: paths are paths, so they are set in Courier ---- */
  .repo { list-style: none; padding-left: 0; }
  .repo li { margin: 0.5rem 0; color: var(--dim); }
  .repo a { font-family: var(--mono); font-size: 0.95rem; color: var(--hi); border-bottom-color: #3a3a3a; }
  /* A repo named but not yet linkable: same voice as its neighbours, dimmer,
     no underline -- so it reads as "not clickable yet", not as broken markup. */
  .pending { font-family: var(--mono); font-size: 0.95rem; color: var(--dim); }

  footer { margin-top: 3.5rem; padding-top: 1.35rem; border-top: 1px solid var(--rule); }
  footer p {
    margin: 0.4rem 0;
    font-family: var(--display);
    text-transform: uppercase;
    letter-spacing: 0.09em;
    font-size: 0.78rem;
    color: var(--faint);
  }
  footer a { color: var(--dim); border-bottom-color: #3a3a3a; }
  footer .colophon {
    font-family: var(--sans);
    text-transform: none;
    letter-spacing: normal;
    font-size: 0.78rem;
    line-height: 1.65;
    color: var(--faint);
    margin: 1.2rem 0 0;
    max-width: 42rem;
  }

  /* ==== draft additions ================================================ */
  .draftbar {
    font-family: var(--mono); font-size: 0.75rem; color: #000; background: #d6b02d;
    padding: 0.3rem 0.6rem; margin: -2.5rem -1.25rem 2rem; text-align: center;
  }
  .draftbar a { color: #000; border-bottom-color: #000; }
  header a { border: 0; }

  /* the upper row: one line of section links, set like the cover's tagline */
  nav.top { margin: 1.4rem 0 0; padding: 0.55rem 0; border-top: 1px solid var(--rule);
            border-bottom: 1px solid var(--rule); }
  nav.top ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap;
               gap: 0.2rem 1.15rem; }
  nav.top li { margin: 0; }
  nav.top a { font-family: var(--display); text-transform: uppercase; letter-spacing: 0.1em;
              font-size: 0.82rem; color: var(--fg); border: 0; }
  nav.top a:hover, nav.top a[aria-current] { color: var(--hi); box-shadow: 0 2px 0 var(--red); }
  nav.top.secondary { border-top: 0; padding-top: 0; }
  nav.top.secondary a { font-size: 0.72rem; color: var(--dim); }

  /* v3: the subpages as tiles */
  .tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(12.5rem, 1fr));
           gap: 0.9rem; margin: 1.5rem 0; }
  .tiles a { display: block; border: 1px solid var(--rule); border-top: 3px solid var(--red);
             padding: 0.75rem 0.9rem; color: var(--fg); }
  .tiles a:hover { border-color: #444; border-top-color: var(--red); }
  .tiles b { display: block; font-family: var(--display); text-transform: uppercase;
             letter-spacing: 0.08em; font-weight: 600; margin-bottom: 0.25rem; }
  .tiles span { font-size: 0.88rem; color: var(--dim); line-height: 1.45; display: block; }

  /* tables (downloads, hardware, packages) */
  .tbl { overflow-x: auto; margin: 1rem 0 1.5rem; }
  table { border-collapse: collapse; width: 100%; font-size: 0.9rem; line-height: 1.45; }
  th, td { text-align: left; vertical-align: top; padding: 0.45rem 0.6rem 0.45rem 0;
           border-bottom: 1px solid var(--rule); }
  th { font-family: var(--display); text-transform: uppercase; letter-spacing: 0.08em;
       font-weight: 600; font-size: 0.75rem; color: var(--dim); }
  td code { font-size: 0.85rem; }

  /* tier labels: words, never colour alone */
  .tier { font-family: var(--display); text-transform: uppercase; letter-spacing: 0.06em;
          font-size: 0.72rem; white-space: nowrap; padding: 0.05rem 0.35rem; border: 1px solid; }
  .t-hw  { color: var(--hi); border-color: var(--hi); }
  .t-emu { color: var(--fg); border-color: #666; }
  .t-exp { color: #d6b02d; border-color: #8a7420; }
  .t-next { color: var(--faint); border-color: #444; }

  /* mockup placeholders: obviously not content */
  .ph { color: var(--faint); font-style: italic; }
  .phbox { border: 1px dashed #444; color: var(--faint); padding: 1.6rem 1rem; text-align: center;
           font-size: 0.85rem; }
  .gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr)); gap: 0.9rem; }
  .news { list-style: none; padding: 0; }
  .news li { margin: 0.7rem 0; }
  .news time { font-family: var(--mono); font-size: 0.85rem; color: var(--dim); margin-right: 0.6rem; }
  .status { font-family: var(--mono); font-size: 0.85rem; color: var(--dim); }
  .phtag { font-family: var(--mono); font-size: 0.68rem; font-style: normal; color: #000;
           background: #d6b02d; padding: 0 0.3rem; margin-right: 0.3rem; white-space: nowrap; }

  /* ==== v3: mobile first ================================================
     A slim sticky bar: wordmark + four links + Menu (a CSS checkbox, no JS).
     Phone: row 1 = wordmark | Menu, row 2 = the four links; Menu opens the other
     eight as a full-width list.  Desktop (>= 960px): all twelve in one row. */
  .draftbar { font-size: 0.7rem; padding: 0.2rem 0.5rem; }
  body.l-mobile { padding: 0; }
  body.l-mobile .draftbar { margin: 0; }
  body.l-mobile main { padding: 0 1.25rem 3.5rem; }
  .mbar { position: sticky; top: 0; z-index: 10; margin: 0; background: rgba(0,0,0,0.96);
          border-bottom: 1px solid var(--rule); }
  .menu-toggle { position: absolute; opacity: 0; pointer-events: none; }
  .mbar-row { display: grid; grid-template-columns: auto 1fr auto; align-items: center;
              gap: 0.35rem 1rem; max-width: 72rem; margin: 0 auto; padding: 0.5rem 1.25rem; }
  .mbar .mark { border: 0; display: block; line-height: 0; }
  .mbar .mark img { width: 92px; height: auto; display: block; }
  .mbar nav a, .mfoot a { font-family: var(--display); text-transform: uppercase;
          letter-spacing: 0.09em; font-size: 0.8rem; color: var(--fg); border: 0; }
  .mbar nav a:hover { color: var(--hi); }
  .mbar nav a[aria-current] { color: var(--hi); box-shadow: 0 2px 0 var(--red); }
  .mprimary { grid-column: 1 / -1; grid-row: 2; display: flex; justify-content: space-between;
              gap: 0.5rem; padding-top: 0.15rem; }
  .mdesk { display: none; }
  .menu-btn { grid-column: 3; grid-row: 1; cursor: pointer; font-family: var(--display);
              text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.8rem; color: var(--hi);
              border: 1px solid #444; padding: 0.2rem 0.6rem; user-select: none; }
  .menu-btn::after { content: "Menu \2630"; }
  .menu-toggle:checked ~ .mbar-row .menu-btn::after { content: "Close \2715"; }
  .menu-toggle:focus-visible ~ .mbar-row .menu-btn { outline: 2px solid var(--red); }
  .mmore { display: none; border-top: 1px solid var(--rule); }
  .menu-toggle:checked ~ .mmore { display: block; }
  .mbar .mmore a { display: block; padding: 0.75rem 1.25rem; border-bottom: 1px solid var(--rule);
             font-size: 0.95rem; }
  .mhero { padding: 1.4rem 0 0.2rem; }
  .mhero img { width: 200px; height: auto; display: block; }
  .mhero .tagline { margin-top: 0.7rem; }
  body.l-mobile main > h2:first-of-type { margin-top: 1.6rem; }
  .mfoot { display: flex; flex-wrap: wrap; gap: 0.4rem 1.1rem; margin-bottom: 1.2rem; }
  .mfoot a { font-size: 0.75rem; color: var(--dim); }
  @media (min-width: 960px) {
    .mbar-row { grid-template-columns: auto 1fr; padding: 0.6rem 1.25rem; }
    .mprimary { grid-column: 2; grid-row: 1; justify-content: flex-end; gap: 1.1rem; padding: 0; }
    .mdesk { display: contents; }
    .menu-btn, .mmore { display: none; }
    .mbar .mark img { width: 110px; }
    .mhero { padding: 3rem 0 0.5rem; }
    .mhero img { width: 318px; }
  }

  /* ---- release content (v3, 1.0) ---- */
  ol { margin: 0 0 1.1rem; padding-left: 1.4rem; }
  ol li { margin: 0.5rem 0; }
  kbd { font-family: var(--mono); font-size: 0.82em; color: var(--hi); border: 1px solid #444;
        border-radius: 3px; padding: 0 0.3em; }
  code.hash { font-size: 0.72rem; color: var(--dim); word-break: break-all; }
  td.num { white-space: nowrap; font-family: var(--mono); font-size: 0.82rem; }
  table.kv td:first-child { width: 55%; }
  table.kv td:first-child code { color: var(--fg); word-break: break-word; }
  table.dl td:first-child code { word-break: break-word; }
  @media (min-width: 56rem) { table.dl td:first-child code { white-space: nowrap; } }
  /* narrow screens: each download row stacks, the file name on its own line */
  @media (max-width: 55.99rem) {
    table.dl tr { display: block; padding: 0.5rem 0; border-bottom: 1px solid var(--rule); }
    table.dl td { display: inline; padding: 0; border: 0; }
    table.dl td:first-child { display: block; }
    table.dl td:first-child code { word-break: break-all; }
    table.dl td.num::before { content: "\00a0· "; }
  }
  .rc { font-family: var(--mono); font-size: 0.85rem; color: #d6b02d; border-left: 3px solid #8a7420;
        padding-left: 0.7rem; }
  .rc b { color: #d6b02d; }
  .next { margin-top: 2rem; padding-top: 0.8rem; border-top: 1px solid var(--rule); font-size: 0.9rem; }
  .term { white-space: pre-wrap; }
  .ph code { word-break: break-all; }