/* FactSpectra — shared styles.
   Deliberately shares its palette with the running app: the site and the demo
   should read as one product, not a brochure pointing at a different thing. */

:root{
  --bg:#fbfaf8; --panel:#fff; --line:#e4e0d9; --ink:#171614; --muted:#6b6560;
  --accent:#1f5f4e; --accent-soft:#e8f1ed; --accent-ink:#124034;
  --bad:#9b2c2c; --bad-soft:#fbeeee; --warn:#8a5a12;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
  --max:1080px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#121412; --panel:#1a1d1b; --line:#2c312e; --ink:#e9e7e2; --muted:#9a948c;
  --accent:#74c3a7; --accent-soft:#18261f; --accent-ink:#9fd8c2;
  --bad:#e8837d; --bad-soft:#2a1b1b; --warn:#d9a441;
}}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.65 ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
a{color:var(--accent)}

/* ── nav ─────────────────────────────────────────────────────────────── */
nav{border-bottom:1px solid var(--line);background:var(--bg);
  position:sticky;top:0;z-index:20}
nav .wrap{display:flex;align-items:center;gap:26px;height:60px;flex-wrap:wrap}
.brand{font-weight:680;font-size:17px;letter-spacing:-.02em;text-decoration:none;
  color:var(--ink);margin-right:auto;
  /* The mark and the wordmark are separate elements so the wordmark stays
     real text: selectable, and set in the page's own font rather than
     whatever an SVG happens to resolve to. */
  display:inline-flex;align-items:center;gap:9px}
.brand img{display:block;width:30px;height:22px}
/* .wm exists only to keep the wordmark one flex item. A bare "Fact" text node
   beside <span>Spectra</span> becomes an anonymous flex item of its own, and
   the gap above then opens up in the middle of the word. */
.brand .wm span{color:var(--accent)}
nav a.link{color:var(--muted);text-decoration:none;font-size:14.5px}
nav a.link:hover,nav a.link[aria-current="page"]{color:var(--ink)}
nav a.link[aria-current="page"]{font-weight:600}
.cta{background:var(--accent);color:#fff;border-radius:8px;padding:7px 14px;
  font-size:14px;font-weight:600;text-decoration:none;white-space:nowrap}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .cta{color:#0d1310}}

/* ── type ────────────────────────────────────────────────────────────── */
h1{font-family:var(--serif);font-size:clamp(30px,4.6vw,46px);line-height:1.12;
  letter-spacing:-.02em;margin:0 0 18px;font-weight:600}
h2{font-family:var(--serif);font-size:clamp(22px,2.8vw,29px);line-height:1.22;
  margin:52px 0 14px;font-weight:600;letter-spacing:-.01em}
h3{font-size:17px;margin:30px 0 8px;font-weight:650}
p{margin:0 0 16px;max-width:70ch}
.lede{font-size:clamp(17px,2vw,19.5px);color:var(--muted);max-width:66ch;line-height:1.6}
.eyebrow{font-size:11.5px;text-transform:uppercase;letter-spacing:.12em;
  color:var(--accent);font-weight:680;margin:0 0 14px}
section{padding:8px 0}
header.page{padding:64px 0 8px;border-bottom:1px solid var(--line);margin-bottom:8px}
strong{font-weight:650}

/* ── blocks ──────────────────────────────────────────────────────────── */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:22px 24px;margin:22px 0}
.grid{display:grid;gap:16px;margin:22px 0}
@media(min-width:720px){.grid.two{grid-template-columns:1fr 1fr}
  .grid.three{grid-template-columns:repeat(3,1fr)}}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px}
.card h3{margin-top:0}
.card p:last-child{margin-bottom:0}

blockquote{margin:18px 0;padding:2px 0 2px 18px;border-left:3px solid var(--accent);
  font-family:var(--mono);font-size:13.5px;line-height:1.6;color:var(--ink)}
blockquote cite{display:block;font-family:inherit;font-style:normal;
  color:var(--muted);font-size:12px;margin-top:6px}

.callout{border:1px solid var(--accent);background:var(--accent-soft);
  border-radius:12px;padding:18px 20px;margin:24px 0}
.callout.warn{border-color:var(--bad);background:var(--bad-soft)}
.callout p:last-child{margin-bottom:0}
.callout h3{margin-top:0;color:var(--accent-ink)}
.callout.warn h3{color:var(--bad)}

pre{background:var(--panel);border:1px solid var(--line);border-radius:10px;
  padding:16px 18px;overflow-x:auto;font-family:var(--mono);font-size:13px;
  line-height:1.55;margin:20px 0}
code{font-family:var(--mono);font-size:.9em;background:var(--accent-soft);
  padding:1px 5px;border-radius:4px}
pre code{background:none;padding:0;font-size:inherit}

table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px;display:block;
  overflow-x:auto}
@media(min-width:720px){table{display:table}}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);
  vertical-align:top}
th{font-size:12px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);
  font-weight:680}
td code{white-space:nowrap}

ul,ol{max-width:70ch;padding-left:22px}
li{margin:7px 0}
.tick li{list-style:none;position:relative;padding-left:24px}
.tick li::before{content:"→";position:absolute;left:0;color:var(--accent);font-weight:700}

.pill{display:inline-block;font-size:11px;font-weight:680;text-transform:uppercase;
  letter-spacing:.07em;padding:3px 9px;border-radius:999px;border:1px solid currentColor}
.pill.built{color:var(--accent)} .pill.design{color:var(--warn)}

hr{border:0;border-top:1px solid var(--line);margin:56px 0}

footer{border-top:1px solid var(--line);margin-top:80px;padding:34px 0 56px;
  color:var(--muted);font-size:14px}
footer a{color:var(--muted)}
footer .wrap{display:flex;gap:24px;flex-wrap:wrap;align-items:baseline}
footer .sp{margin-left:auto}

/* ── pipeline diagram ────────────────────────────────────────────────── */
.flow{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:24px 0}
.flow .step{border:1px solid var(--line);background:var(--panel);border-radius:999px;
  padding:7px 15px;font-size:13.5px;font-weight:600;white-space:nowrap}
.flow .step.code{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}
.flow .step.gate{border-color:var(--bad);color:var(--bad);background:var(--bad-soft)}
.flow .arr{color:var(--muted)}
.legend{font-size:13px;color:var(--muted);margin-top:-8px}

.hero{padding:76px 0 20px}
.hero h1{max-width:19ch}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 6px}
.btn{background:var(--accent);color:#fff;border-radius:9px;padding:11px 20px;
  text-decoration:none;font-weight:620;font-size:15px;display:inline-block}
.btn.ghost{background:none;color:var(--ink);border:1px solid var(--line)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .btn{color:#0d1310}
  :root:not([data-theme="light"]) .btn.ghost{color:var(--ink)}}
.note{font-size:13.5px;color:var(--muted)}