/* threlay — dark field, circles from Kandinsky's "Several Circles" as structural colour.
   Type: Jost (geometric, the mark's era) for display and labels; Karla for reading. */
:root {
  --field: #06080f;
  --field-2: #0b1020;
  --surface: #0e1426;
  --line: #1c2540;
  --ink: #eef0f7;
  --ink-2: #b6bdd0;
  --muted: #7f889f;
  --ultramarine: #1c3db0;
  --mark-blue: #0f5cff;
  --sun: #f5c74b;
  --pink: #efa9cf;
  --teal: #6cbfb7;
  --red: #d8332f;
  --orange: #f08a2a;
  --lilac: #9a8fe0;
  --sky: #a6cdf3;
  --cream: #f8e3b0;
  --display: "Jost", "Futura", "Avenir Next", "Helvetica Neue", sans-serif;
  --body: "Karla", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column;
  background: var(--field);
  color: var(--ink);
  font: 17px/1.55 var(--body);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--sky); }
a:focus-visible, .cta:focus-visible { outline: 2px solid var(--sun); outline-offset: 3px; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 28px; }

/* Hero: the mark alone, sized so the rail below fits in the first screen. */
/* The hero takes whatever height the rail, button, and footer leave, so the page fills the screen. */
.hero { flex: 1 0 auto; display: grid; place-content: center; padding: 48px 0 32px; text-align: center; }
.mark { display: block; width: clamp(180px, 18vw, 240px); height: auto; margin: 0 auto 18px; }
.wordmark { font: 500 clamp(44px, 5.5vw, 64px)/1 var(--display); letter-spacing: -.025em; margin: 0; }
.sub { font: 400 clamp(18px, 2.2vw, 24px)/1.4 var(--display); color: var(--ink-2); max-width: 34ch; margin: 18px auto 0; text-wrap: balance; }
.cta {
  display: inline-block; background: var(--mark-blue); color: #fff; text-decoration: none;
  font: 500 17px/1 var(--display); letter-spacing: .01em; padding: 16px 28px; border-radius: 999px;
  transition: background-color .12s ease;
}
.cta:hover { color: #fff; background: #2f6fff; }
.cta:active { background: #0b4fe0; }
.fine { margin: 12px 0 0; font-size: 14px; color: var(--muted); }
.ask { text-align: center; padding-top: 44px; }

/* The suite's bar on every product page: home on the left, the three products on the right. */
.top { padding: 20px 0 0; }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.top .home { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 500 20px/1 var(--display); }
.top .home img { width: 28px; height: 28px; }
.top .products { display: flex; gap: 22px; font: 500 15px/1 var(--display); }
.top .products a { color: var(--ink-2); text-decoration: none; }
.top .products a:hover, .top .products a[aria-current="page"] { color: var(--ink); text-decoration: underline; }
.hero.product { padding-top: 32px; }

/* The suite's home: one card per product. */
.suite { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding: 8px 28px 0; max-width: 1040px; margin: 0 auto; }
.product-card { display: grid; gap: 8px; align-content: start; text-decoration: none; border-left: 2px solid var(--line); padding: 4px 16px 4px 16px; }
.product-card h2 { font: 500 26px/1.1 var(--display); margin: 0; letter-spacing: -.015em; }
.product-card p { margin: 0; color: var(--ink-2); font-size: 15.5px; line-height: 1.45; }
.product-card .what { color: var(--muted); font-size: 14px; }
.product-card:hover h2 { color: var(--sky); }
.product-card.develop { border-color: var(--sun); } .product-card.mirror { border-color: var(--mark-blue); } .product-card.proof { border-color: var(--pink); }

section { padding: 24px 0 8px; }
/* The eyebrow sits on the rail's own left edge, 28 px in like the first card, not on the content column. */
.eyebrow { font: 500 13px/1 var(--display); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 0 0 28px; padding-left: 28px; }

/* How it works: a full-width rail of open cards, each carried by one coloured rule. */
.strip {
  display: flex; gap: 14px; padding: 4px 28px 14px; overflow-x: auto;
  scroll-snap-type: x mandatory; scroll-padding-left: 28px; scrollbar-width: thin; scrollbar-color: var(--line) transparent;
}
.strip::-webkit-scrollbar { height: 6px; }
.strip::-webkit-scrollbar-thumb { background: var(--line); border-radius: 3px; }
.card {
  flex: 0 0 216px; scroll-snap-align: start;
  border-left: 2px solid var(--line); padding: 2px 16px 2px 14px;
  display: grid; gap: 6px; align-content: start;
}
.card h3 { font: 500 17px/1.2 var(--display); margin: 0; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--ink-2); font-size: 14.5px; line-height: 1.45; }
.card.sun { border-color: var(--sun); } .card.pink { border-color: var(--pink); } .card.teal { border-color: var(--teal); }
.card.red { border-color: var(--red); } .card.orange { border-color: var(--orange); } .card.lilac { border-color: var(--lilac); }
.card.sky { border-color: var(--sky); } .card.blue { border-color: var(--mark-blue); } .card.cream { border-color: var(--cream); }


footer { padding: 36px 0 40px; color: var(--muted); font-size: 14px; text-align: center; }
footer .row { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 8px 14px; }
footer a { color: var(--muted); text-decoration: none; }
footer a:hover { color: var(--sky); text-decoration: underline; }
footer .co { margin: 12px 0 0; }
footer .sep { color: var(--line); }

/* Documents: privacy, terms. */
.doc { max-width: 66ch; margin: 0 auto; padding: 56px 28px 80px; }
.doc .home { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 500 20px/1 var(--display); margin-bottom: 40px; }
.doc .home img { width: 34px; height: 34px; }
.doc h1 { font: 500 clamp(30px, 5vw, 40px)/1.1 var(--display); letter-spacing: -.02em; margin: 0 0 6px; }
.doc .meta { color: var(--muted); font-size: 14px; margin: 0 0 40px; }
.doc h2 { font: 500 21px/1.25 var(--display); margin: 40px 0 10px; letter-spacing: -.01em; }
.doc p, .doc li { color: var(--ink-2); }
.doc p { margin: 0 0 14px; }
.doc ul { margin: 0 0 14px; padding-left: 20px; }
.doc li { margin: 0 0 6px; }
.doc strong { color: var(--ink); font-weight: 600; }

@media (max-width: 640px) {
  /* Phone viewports with browser chrome are about 650 to 750 px tall; everything must fit. */
  .hero { padding: 24px 0 16px; }
  .mark { width: 140px; margin-bottom: 10px; }
  .wordmark { font-size: 40px; }
  .sub { font-size: 17px; margin-top: 10px; }
  section { padding: 16px 0 4px; }
  .eyebrow { margin-bottom: 16px; }
  .card { flex-basis: 200px; }
  .ask { padding-top: 24px; }
  .fine { margin-top: 8px; }
  footer { padding: 18px 0 20px; }
  footer .co { margin-top: 6px; }
  .suite { grid-template-columns: 1fr; gap: 22px; }
  .top .products { gap: 14px; }
}
@media (prefers-reduced-motion: reduce) { .cta { transition: none; } }