/* Sawhorse public site. Design tokens copied from the approved mock
   (docs/mock/sawhorse-mock.html, ADR-0003) and src/styles/tokens.css: light by default,
   dark from the OS. No framework, no scripts. */
:root{
  --bg:#edeeea; --panel:#f7f8f5; --rail:#e3e5df; --fg:#1d211f; --muted:#5f6660; --line:#c9cdc5;
  --accent:#2a63a8; --accent-ink:#ffffff;
  --inf-end:#7bc043; --inf-mid:#17a2a0; --inf-edge:#e08a1e; --inf-face:#8a5cd6;
  --grain:#8a5a2b; --ok:#2e8b57; --warn:#c77d12;
  --display:"Barlow Condensed","Arial Narrow",Arial,sans-serif;
  --body:"IBM Plex Sans","Segoe UI",system-ui,sans-serif;
  --mono:"IBM Plex Mono","Cascadia Mono",Consolas,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]){
  --bg:#1a1d1b; --panel:#222623; --rail:#1f2320; --fg:#e8eae5; --muted:#9aa39b; --line:#3a403b;
  --accent:#6ea3e4; --accent-ink:#0f1a28; --grain:#d9a066; --ok:#5ec98a; --warn:#e3a94a; color-scheme:dark } }
:root[data-theme="dark"]{
  --bg:#1a1d1b; --panel:#222623; --rail:#1f2320; --fg:#e8eae5; --muted:#9aa39b; --line:#3a403b;
  --accent:#6ea3e4; --accent-ink:#0f1a28; --grain:#d9a066; --ok:#5ec98a; --warn:#e3a94a; color-scheme:dark }

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--body);font-size:16px;line-height:1.55}
a{color:var(--accent)}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
img{max-width:100%;height:auto;display:block}
code,kbd{font-family:var(--mono);font-size:.9em}
kbd{padding:1px 5px;border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;background:var(--panel)}
.wrap{max-width:1120px;margin:0 auto;padding:0 16px}

/* Top bar: the app's header, as a site nav. */
.top{background:var(--panel);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:16px;min-height:52px;flex-wrap:wrap}
.brand{font-family:var(--display);font-weight:600;font-size:22px;letter-spacing:.02em;display:flex;align-items:center;gap:8px;color:var(--fg);text-decoration:none}
.brand svg{width:24px;height:24px}
.top nav{display:flex;gap:2px;flex-wrap:wrap;margin-left:auto}
.top nav a{padding:5px 10px;border-radius:4px;color:var(--muted);text-decoration:none;font-size:14px}
.top nav a:hover{background:var(--rail);color:var(--fg)}

/* Hero */
.hero{padding:56px 0 28px}
.hero .wrap{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px;align-items:center}
.eyebrow{display:inline-flex;gap:8px;align-items:center;font:12px var(--mono);color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 10px;background:var(--panel)}
.eyebrow b{color:var(--warn);font-weight:500}
h1{font-family:var(--display);font-weight:600;font-size:clamp(44px,7vw,76px);line-height:.95;letter-spacing:.01em;margin:14px 0 14px}
.pitch{font-size:clamp(19px,2.2vw,22px);line-height:1.4;margin:0 0 12px}
.lede{color:var(--muted);margin:0 0 22px}
.lede kbd{color:var(--fg)}
.actions{display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:6px;border:1px solid var(--line);background:var(--panel);color:var(--fg);font-weight:500;text-decoration:none;font-size:15px}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.08)}
.btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.shot{margin:0;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--panel);box-shadow:0 18px 40px -24px color-mix(in srgb,var(--fg) 45%,transparent)}
.shot figcaption{font:12px var(--mono);color:var(--muted);padding:7px 12px;border-top:1px solid var(--line)}

/* Section headings: the mock's pane headings, bigger. */
section{padding:36px 0}
h2{font-family:var(--display);font-weight:600;font-size:32px;letter-spacing:.02em;margin:0 0 6px}
h2 + .sub{color:var(--muted);margin:0 0 22px}
h3{font-family:var(--display);font-weight:600;font-size:21px;letter-spacing:.02em;margin:0 0 6px}

/* Feature strip */
.features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.feature{border:1px solid var(--line);border-radius:8px;background:var(--panel);padding:18px}
.feature p{margin:0;color:var(--muted);font-size:15px}
.feature .dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:8px;vertical-align:1px}

/* Downloads */
.downloads{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.dl{border:1px solid var(--line);border-radius:8px;background:var(--panel);padding:18px;display:flex;flex-direction:column;gap:10px}
.dl .btn{justify-content:center}
.dl small{color:var(--muted);font-size:13px}
.dl small a{white-space:nowrap}
.notice{margin-top:14px;border:1px solid color-mix(in srgb,var(--warn) 55%,var(--line));border-radius:8px;padding:12px 16px;background:color-mix(in srgb,var(--warn) 9%,var(--panel));font-size:14.5px}
.notice b{color:var(--fg)}

/* How it is built + second screenshot */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px;align-items:start}
.split p{margin:0 0 12px}
.links{list-style:none;padding:0;margin:16px 0 0;display:flex;flex-wrap:wrap;gap:8px}
.links a{display:inline-block;padding:6px 12px;border:1px solid var(--line);border-radius:999px;background:var(--panel);text-decoration:none;font-size:14px;color:var(--fg)}
.links a:hover{border-color:var(--accent);color:var(--accent)}
.maint{font:13px var(--mono);color:var(--muted)}

footer{border-top:1px solid var(--line);background:var(--panel);padding:22px 0;margin-top:28px;font-size:13.5px;color:var(--muted)}
footer .wrap{display:flex;gap:10px 24px;flex-wrap:wrap;justify-content:space-between}
footer p{margin:0}

/* Rendered documents (guide, changelog) */
.doc{max-width:820px;padding-top:28px;padding-bottom:28px}
.doc h1{font-size:clamp(38px,6vw,56px);margin:8px 0 18px}
.doc h2{margin-top:36px;padding-top:6px;border-top:1px solid var(--line)}
.doc h3{margin-top:24px}
.doc h2 a.anchor,.doc h3 a.anchor{color:var(--muted);text-decoration:none;margin-left:6px;opacity:0;font-family:var(--body);font-size:.7em}
.doc h2:hover a.anchor,.doc h3:hover a.anchor{opacity:1}
.doc table{border-collapse:collapse;width:100%;font-size:14px;margin:12px 0;display:block;overflow-x:auto}
.doc th,.doc td{text-align:left;padding:6px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.doc th{font-weight:600;font-size:12.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.doc pre{background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:12px;overflow-x:auto}
.doc li{margin:3px 0}
.doc .back{font-size:14px}
.toc{border:1px solid var(--line);border-radius:8px;background:var(--panel);padding:10px 16px;font-size:14px}
.toc ul{margin:6px 0 4px;padding-left:18px;columns:2;column-gap:28px}

@media (max-width:860px){
  .hero{padding-top:32px}
  .hero .wrap,.split{grid-template-columns:1fr;gap:24px}
  .features,.downloads{grid-template-columns:1fr}
  .toc ul{columns:1}
}