/* TRACE public site — observatory-at-night, matching the product design language.
   Static, system fonts, no JS required. */
:root {
  --abyss: #07090d;
  --vault: #10141b;
  --raised: #1a2029;
  --ink: #e8ecf2;
  --ink-dim: #8b95a5;
  --ink-faint: #545d6c;
  --iris: #ffb454;
  --holo: #00f0ff;
  --line: rgba(255, 255, 255, 0.08);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--abyss); color: var(--ink);
  font: 16px/1.65 var(--sans); -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 940px; margin: 0 auto; padding: 0 24px; }
a { color: var(--iris); text-decoration: none; }
a:hover { text-decoration: underline; }
::selection { background: rgba(255, 180, 84, 0.3); }

/* nav */
header.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(7, 9, 13, 0.8); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; gap: 22px; height: 60px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 600; letter-spacing: 0.04em; }
.brand .dot { width: 18px; height: 18px; border: 1.5px solid rgba(255,180,84,0.7);
  border-radius: 999px; display: grid; place-items: center; }
.brand .dot i { width: 5px; height: 5px; background: var(--iris); border-radius: 999px; }
.nav a.link { color: var(--ink-dim); font-size: 14px; }
.nav a.link:hover { color: var(--ink); text-decoration: none; }
.nav .spacer { flex: 1; }
.btn { display: inline-block; padding: 8px 18px; border-radius: 999px;
  background: rgba(255,180,84,0.14); color: var(--iris); font-weight: 500; font-size: 14px; }
.btn:hover { background: rgba(255,180,84,0.24); text-decoration: none; }

/* hero */
.hero { padding: 90px 0 60px; }
.eyebrow { font: 11px/1 var(--mono); letter-spacing: 0.14em; color: var(--iris);
  text-transform: uppercase; }
h1 { font: 300 clamp(2.4rem, 6vw, 4.2rem)/1.03 var(--serif); letter-spacing: -0.02em;
  margin: 16px 0 0; }
h1 .dim { color: var(--ink-dim); }
.lede { font-size: 1.2rem; color: var(--ink-dim); max-width: 640px; margin: 22px 0 32px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }

/* stat band */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 16px;
  overflow: hidden; margin: 48px 0; }
.stat { background: var(--vault); padding: 24px; }
.stat .n { font: 300 2rem/1 var(--serif); color: var(--iris); }
.stat .l { font-size: 13px; color: var(--ink-dim); margin-top: 6px; }

/* sections */
section { padding: 44px 0; border-top: 1px solid var(--line); }
h2 { font: 300 clamp(1.6rem, 3.5vw, 2.4rem)/1.1 var(--serif); margin: 0 0 8px; }
h3 { font-size: 1.15rem; margin: 28px 0 8px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.card { background: var(--vault); border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.card h3 { margin-top: 0; }
.card p { color: var(--ink-dim); font-size: 15px; margin: 6px 0 0; }
p { color: #c4cbd6; }
.muted { color: var(--ink-dim); }
ul.clean { list-style: none; padding: 0; }
ul.clean li { padding: 8px 0 8px 26px; position: relative; color: #c4cbd6; }
ul.clean li::before { content: "→"; position: absolute; left: 0; color: var(--iris); }

/* code */
pre { background: #0b0e14; border: 1px solid var(--line); border-radius: 12px;
  padding: 18px; overflow-x: auto; font: 13px/1.6 var(--mono); color: #d6dbe4; }
code { font: 0.9em var(--mono); color: var(--iris); background: rgba(255,180,84,0.08);
  padding: 1px 5px; border-radius: 5px; }
pre code { color: inherit; background: none; padding: 0; }

/* pricing */
.tiers { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.tier { background: var(--vault); border: 1px solid var(--line); border-radius: 18px; padding: 26px; }
.tier.feature { border-color: rgba(255,180,84,0.35); }
.tier .price { font: 300 1.8rem/1 var(--serif); color: var(--iris); margin: 10px 0; }

/* faq */
details { border-bottom: 1px solid var(--line); padding: 16px 0; }
summary { cursor: pointer; font-weight: 500; font-size: 1.05rem; }
details p { margin: 12px 0 0; }

/* table */
table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 15px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); }
th { color: var(--ink-dim); font-weight: 500; font-size: 13px; text-transform: uppercase;
  letter-spacing: 0.05em; }
td.yes { color: var(--iris); }
td.no { color: var(--ink-faint); }

/* footer */
footer { border-top: 1px solid var(--line); padding: 40px 0; color: var(--ink-faint);
  font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 20px; justify-content: space-between; }
footer a { color: var(--ink-dim); }
/* agent setup prompt */
.prompt-wrap { position: relative; }
.prompt-wrap pre { padding-top: 48px; }
.copy-btn { position: absolute; top: 10px; right: 10px; z-index: 2;
  font: 12px/1 var(--mono); letter-spacing: 0.04em; color: var(--iris);
  background: rgba(255,180,84,0.10); border: 1px solid var(--line);
  border-radius: 999px; padding: 7px 15px; cursor: pointer; transition: background .15s; }
.copy-btn:hover { background: rgba(255,180,84,0.22); }
.copy-btn.copied { color: var(--ink); border-color: rgba(255,180,84,0.4); }

@media (max-width: 640px) { .nav a.link { display: none; } .hero { padding: 56px 0 40px; } }