:root {
  color-scheme: dark;
  --bg: #020617;
  --panel: #0f172a;
  --panel-soft: #111827;
  --text: #f8fafc;
  --muted: #cbd5e1;
  --subtle: #94a3b8;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #d946ef;
  --accent-2: #22d3ee;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

.shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 48px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent-2), #8b5cf6, var(--accent));
}

.brand h1 {
  margin: 0;
  font-size: 18px;
  line-height: 1.2;
}

.brand p {
  margin: 2px 0 0;
  color: var(--subtle);
  font-size: 13px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 800;
}

.hero {
  border-bottom: 1px solid var(--line);
  padding-bottom: 24px;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1.04;
  letter-spacing: 0;
}

.updated {
  margin: 14px 0 0;
  color: var(--subtle);
  font-size: 14px;
}

.content {
  display: grid;
  gap: 18px;
}

section {
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
}

h3 {
  margin: 0 0 10px;
  font-size: 20px;
  line-height: 1.25;
}

p,
li {
  color: var(--muted);
}

p {
  margin: 0 0 12px;
}

p:last-child {
  margin-bottom: 0;
}

ul {
  margin: 0;
  padding-left: 20px;
}

a {
  color: #67e8f9;
}

.note {
  color: var(--subtle);
  font-size: 14px;
}

.footer {
  border-top: 1px solid var(--line);
  margin-top: 28px;
  padding-top: 18px;
  color: var(--subtle);
  font-size: 13px;
}

@media (max-width: 680px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    justify-content: flex-start;
  }

  section {
    padding: 16px;
  }
}