:root {
  color-scheme: dark;
  --bg: #070b14;
  --panel: #0e1522;
  --line: #1d2a3d;
  --ink: #e6edf7;
  --muted: #8ea1bd;
  --accent: #4fd1c5;
  --accent-2: #f6ad55;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 15% -10%, #12233a 0%, transparent 60%),
    radial-gradient(900px 500px at 100% 0%, #1b2a1f 0%, transparent 55%),
    var(--bg);
  color: var(--ink);
  font: 16px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

.shell {
  width: min(1040px, 92vw);
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 5rem) 0 3rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  max-width: 22ch;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.lede {
  max-width: 62ch;
  margin: 1.25rem 0 2.5rem;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}

.grid article {
  padding: 1.25rem 1.1rem 1.4rem;
  background: var(--panel);
}

.grid span {
  display: block;
  color: var(--accent-2);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
}

.grid h2 {
  margin: 0.35rem 0 0.4rem;
  font-size: 1.02rem;
}

.grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

footer {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.proof {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 0.75rem;
  margin: 0 0 1.75rem;
  padding: 0.85rem 1rem;
  background: rgba(14, 21, 34, 0.72);
  border: 1px solid rgba(142, 161, 189, 0.18);
  border-radius: 12px;
}

.proof-title {
  margin-right: auto;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.proof-link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.4rem 0.7rem;
  border: 1px solid rgba(142, 161, 189, 0.24);
  border-radius: 8px;
  background: rgba(7, 11, 20, 0.6);
  color: var(--ink);
  font-size: 0.8rem;
  text-decoration: none;
}

.proof-link:hover {
  border-color: rgba(79, 209, 197, 0.55);
  color: var(--accent);
}

.proof-link:focus-visible {
  border-color: var(--accent);
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.proof-arrow {
  color: var(--muted);
  font-size: 0.75rem;
}

.proof-link:hover .proof-arrow {
  color: var(--accent);
}

.commit-link {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dotted rgba(79, 209, 197, 0.45);
}

.commit-link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.commit-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

footer dl {
  display: flex;
  flex-wrap: wrap;
  gap: 1.75rem 3rem;
  margin: 0;
}

footer dt {
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

footer dd {
  margin: 0.2rem 0 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9rem;
  color: var(--accent);
  word-break: break-all;
}