:root {
  color-scheme: dark;
  --base: #07110e;
  --surface: #0d1915;
  --raised: #101e19;
  --border: #263833;
  --text: #eef7f3;
  --muted: #91a49d;
  --accent: #00e5a0;
  --info: #3dd6f5;
}

* { box-sizing: border-box; }

html { background: var(--base); }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 12% -8%, rgb(0 229 160 / 14%), transparent 36rem),
    radial-gradient(circle at 100% 35%, rgb(61 214 245 / 8%), transparent 30rem),
    var(--base);
  font-family: Manrope, Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a { color: var(--accent); }
a:hover { color: #7bffd2; }

.shell {
  width: min(100% - 32px, 920px);
  margin: 0 auto;
  padding: 28px 0 64px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 48px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 800;
  letter-spacing: -.03em;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  padding: 7px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--raised);
}

.topbar nav { display: flex; gap: 18px; }
.topbar nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.topbar nav a[aria-current="page"] { color: var(--text); }

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

h1, h2 { line-height: 1.15; letter-spacing: -.035em; }
h1 { max-width: 760px; margin: 0; font-size: clamp(38px, 8vw, 68px); }
h2 { margin: 0 0 12px; font-size: 24px; }

.lede {
  max-width: 720px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 42px;
}

.card {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: linear-gradient(145deg, rgb(16 30 25 / 96%), rgb(13 25 21 / 88%));
  box-shadow: 0 24px 70px rgb(0 0 0 / 24%);
}

.card.wide { grid-column: 1 / -1; }
.card p:first-child { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }
.card ul { margin: 10px 0 0; padding-left: 21px; }
.card li + li { margin-top: 7px; }

.callout {
  border-color: rgb(0 229 160 / 38%);
  background: linear-gradient(145deg, rgb(11 81 63 / 72%), rgb(9 47 38 / 80%));
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 10px;
  padding: 12px 18px;
  border-radius: 999px;
  color: var(--base);
  background: var(--accent);
  font-weight: 800;
  text-decoration: none;
}

.button:hover { color: var(--base); background: #7bffd2; }

.meta, footer { color: var(--muted); font-size: 13px; }
footer { margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--border); }

@media (max-width: 680px) {
  .shell { width: min(100% - 24px, 920px); padding-top: 18px; }
  .topbar { align-items: flex-start; margin-bottom: 36px; }
  .topbar nav { flex-direction: column; align-items: flex-end; gap: 5px; }
  .grid { grid-template-columns: 1fr; }
  .card.wide { grid-column: auto; }
  .card { padding: 20px; }
}