:root {
  color-scheme: dark;
  --ink: #f4f6f2;
  --muted: #a8b0a7;
  --line: #29312d;
  --panel: #121816;
  --accent: #92f2b7;
  --accent-2: #63b9ff;
  --background: #090d0c;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { background: var(--background); color: var(--ink); }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 85% 0%, rgba(99, 185, 255, .13), transparent 32rem),
    radial-gradient(circle at 10% 25%, rgba(146, 242, 183, .09), transparent 28rem),
    var(--background);
}

a { color: inherit; }

.shell { width: min(1120px, calc(100% - 40px)); margin-inline: auto; }

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 88px;
  border-bottom: 1px solid var(--line);
}

.brand { font-size: 18px; font-weight: 760; letter-spacing: -.03em; text-decoration: none; }
.brand span { color: var(--accent); margin-left: 5px; }

nav { display: flex; flex-wrap: wrap; gap: 22px; }
nav a { color: var(--muted); font-size: 14px; text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--ink); }

.hero { padding-block: 116px 96px; }
.eyebrow { color: var(--accent); font: 700 12px/1.4 ui-monospace, "SFMono-Regular", Consolas, monospace; letter-spacing: .15em; text-transform: uppercase; }
h1 { max-width: 850px; margin: 18px 0 24px; font-size: clamp(46px, 8vw, 92px); line-height: .96; letter-spacing: -.065em; }
.lead { max-width: 720px; color: var(--muted); font-size: clamp(18px, 2.5vw, 24px); line-height: 1.55; }
.signal { display: inline-flex; align-items: center; gap: 10px; margin-top: 30px; padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 13px; }
.signal span { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 18px var(--accent); }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.grid article { min-height: 260px; padding: 32px; background: var(--panel); }
.number, time { color: var(--accent-2); font: 700 12px/1.4 ui-monospace, "SFMono-Regular", Consolas, monospace; }
h2 { margin: 32px 0 12px; font-size: 23px; letter-spacing: -.025em; }
.grid p:last-child, .prose p, .timeline p { color: var(--muted); line-height: 1.65; }

.page { padding-block: 90px 120px; }
.page h1 { max-width: 900px; font-size: clamp(42px, 7vw, 78px); }
.prose { max-width: 740px; margin-top: 68px; }
.prose h2 { margin-top: 38px; }
.timeline { display: grid; gap: 1px; margin-top: 70px; border: 1px solid var(--line); background: var(--line); }
.timeline article { padding: 30px 32px; background: var(--panel); }
.timeline h2 { margin: 12px 0 8px; }

.footer { display: flex; justify-content: space-between; gap: 20px; margin-top: 96px; padding-block: 28px 46px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.missing { display: grid; align-content: center; min-height: 100vh; }
.missing h1 { font-size: clamp(56px, 10vw, 112px); }
.button { width: fit-content; margin-top: 24px; padding: 13px 17px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); text-decoration: none; }
.button:hover { border-color: var(--accent); }

@media (max-width: 760px) {
  .header { align-items: flex-start; flex-direction: column; padding-block: 24px; }
  nav { gap: 12px 18px; }
  .hero { padding-block: 76px 64px; }
  .grid { grid-template-columns: 1fr; }
  .grid article { min-height: auto; }
  .footer { flex-direction: column; }
}