:root {
  --ink: #0a0a0a;
  --paper: #ffffff;
  --muted: #6b6b6b;
  --rule: rgba(10, 10, 10, 0.12);
  --shift: 0.55s cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 17px/1.6 ui-sans-serif, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  width: min(1080px, 100% - 48px);
  margin-inline: auto;
}

nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--shift);
}
nav.lifted { border-bottom-color: var(--rule); }
nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 62px;
}
.mark {
  font-weight: 620;
  letter-spacing: -0.03em;
  font-size: 19px;
  text-decoration: none;
  color: inherit;
}
nav ul {
  display: flex;
  gap: 30px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 15px;
}
nav a { color: var(--muted); text-decoration: none; transition: color 0.2s; }
nav a:hover { color: var(--ink); }
@media (max-width: 680px) { nav ul { display: none; } }

header {
  background: var(--ink);
  color: var(--paper);
  padding: 132px 0 124px;
  overflow: hidden;
}
h1 {
  font-size: clamp(46px, 8.5vw, 104px);
  line-height: 0.98;
  letter-spacing: -0.045em;
  font-weight: 620;
  margin: 0 0 26px;
  max-width: 15ch;
}
.lede {
  font-size: clamp(18px, 2.4vw, 23px);
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.66);
  max-width: 46ch;
  margin: 0 0 42px;
}
.cta { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 14px 26px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 520;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.2s, background 0.2s, border-color 0.2s, color 0.2s;
}
.btn:active { transform: scale(0.975); }
.btn-solid { background: var(--paper); color: var(--ink); }
.btn-solid:hover { background: #e2e2e2; }
.btn-ghost { border-color: rgba(255, 255, 255, 0.28); color: var(--paper); }
.btn-ghost:hover { border-color: var(--paper); }

.ticker {
  margin-top: 74px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  padding-top: 22px;
  display: flex;
  gap: 46px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  flex-wrap: wrap;
}
.ticker span { display: inline-flex; align-items: center; gap: 9px; }
.dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--paper);
  animation: pulse 2.6s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 0.28; } 50% { opacity: 1; } }

section { padding: 108px 0; border-bottom: 1px solid var(--rule); }
h2 {
  font-size: clamp(30px, 4.4vw, 46px);
  letter-spacing: -0.035em;
  line-height: 1.1;
  font-weight: 620;
  margin: 0 0 18px;
  max-width: 20ch;
}
.sub { color: var(--muted); max-width: 56ch; margin: 0 0 54px; font-size: 18px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(248px, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.cell { background: var(--paper); padding: 34px 30px; }
.cell h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 9px;
  letter-spacing: -0.012em;
}
.cell p { margin: 0; color: var(--muted); font-size: 15.5px; line-height: 1.62; }
.num {
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--muted);
  display: block;
  margin-bottom: 20px;
  letter-spacing: 0.06em;
}

.label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  display: block;
  margin-bottom: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.dl { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 18px; }
.card {
  border: 1px solid var(--rule);
  border-radius: 16px;
  padding: 32px 30px 28px;
  transition: border-color var(--shift), transform var(--shift);
}
.card:hover { border-color: var(--ink); transform: translateY(-3px); }
.card h3 { margin: 0 0 6px; font-size: 20px; letter-spacing: -0.02em; font-weight: 620; }
.card .meta { color: var(--muted); font-size: 14.5px; margin: 0 0 24px; }
.card .btn { background: var(--ink); color: var(--paper); padding: 12px 22px; font-size: 15px; }
.card .btn:hover { background: #333; }

.note {
  margin-top: 34px;
  padding: 20px 24px;
  border-left: 2px solid var(--ink);
  color: var(--muted);
  font-size: 15px;
  background: rgba(10, 10, 10, 0.028);
}

footer { padding: 62px 0 78px; color: var(--muted); font-size: 14.5px; }
footer .wrap { display: flex; justify-content: space-between; gap: 26px; flex-wrap: wrap; }
footer a { color: var(--muted); text-decoration: none; border-bottom: 1px solid var(--rule); }
footer a:hover { color: var(--ink); border-bottom-color: var(--ink); }

/* main.js adds .seen when the element scrolls into view */
.rise { opacity: 0; transform: translateY(18px); transition: opacity var(--shift), transform var(--shift); }
.rise.seen { opacity: 1; transform: none; }

@media (prefers-color-scheme: dark) {
  :root { --ink: #f2f2f2; --paper: #070707; --muted: #8d8d8d; --rule: rgba(242, 242, 242, 0.14); }
  nav { background: rgba(7, 7, 7, 0.82); }
  header { background: #f2f2f2; color: #070707; }
  .lede { color: rgba(7, 7, 7, 0.62); }
  .btn-solid { background: #070707; color: #f2f2f2; }
  .btn-solid:hover { background: #2b2b2b; }
  .btn-ghost { border-color: rgba(7, 7, 7, 0.3); color: #070707; }
  .btn-ghost:hover { border-color: #070707; }
  .ticker { border-top-color: rgba(7, 7, 7, 0.16); color: rgba(7, 7, 7, 0.5); }
  .dot { background: #070707; }
  .card .btn { background: #f2f2f2; color: #070707; }
  .card .btn:hover { background: #cfcfcf; }
  .note { background: rgba(242, 242, 242, 0.04); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .rise { opacity: 1; transform: none; }
}