:root {
  color-scheme: dark;
  --paper: #0a0a0a;
  --panel: #111;
  --ink: #fafafa;
  --muted: #a3a3a3;
  --rule: #2b2b2b;
  --accent: #ff3d00;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}

a { color: inherit; }

.shell { width: min(100% - 40px, 760px); margin: 0 auto; }

header {
  border-bottom: 1px solid var(--rule);
  padding: 18px 0;
}

header .shell { display: flex; align-items: center; justify-content: space-between; gap: 20px; }

.brand, .eyebrow, .meta, nav, .button {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.brand { font-weight: 800; text-decoration: none; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--accent); }

main { padding: 88px 0 72px; }
.eyebrow { color: var(--accent); margin: 0 0 16px; }

h1, h2, h3 { line-height: 1.08; letter-spacing: -.035em; }
h1 { font-size: clamp(44px, 8vw, 76px); margin: 0 0 28px; }
h2 { font-size: clamp(28px, 5vw, 42px); margin: 64px 0 18px; }
h3 { font-size: 20px; margin: 34px 0 10px; }

.dek { color: #d4d4d4; font-size: 19px; line-height: 1.6; }
.meta { color: var(--muted); border-block: 1px solid var(--rule); padding: 16px 0; margin: 34px 0 48px; }
p, li { color: #d4d4d4; }
strong { color: var(--ink); }
li + li { margin-top: 9px; }

.comparison {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid var(--rule);
  margin: 28px 0;
}

.comparison > div { padding: 22px; }
.comparison > div + div { border-left: 1px solid var(--rule); }
.comparison h3 { margin-top: 0; }

.callout {
  border-left: 3px solid var(--accent);
  background: var(--panel);
  padding: 22px 24px;
  margin: 34px 0;
}

.callout p { margin: 0; }
.sources { border-top: 1px solid var(--rule); margin-top: 64px; padding-top: 28px; }
.sources a { color: #d4d4d4; text-decoration-color: var(--accent); text-underline-offset: 3px; }

.cta {
  margin-top: 64px;
  padding: 36px;
  border: 1px solid var(--rule);
  background: linear-gradient(135deg, rgba(255, 61, 0, .1), transparent 55%);
}

.cta h2 { margin-top: 0; }
.button {
  display: inline-block;
  background: var(--accent);
  color: #090909;
  font-weight: 800;
  padding: 14px 20px;
  text-decoration: none;
  margin-top: 10px;
}

footer { border-top: 1px solid var(--rule); padding: 30px 0 50px; color: var(--muted); }

@media (max-width: 620px) {
  main { padding-top: 60px; }
  .comparison { grid-template-columns: 1fr; }
  .comparison > div + div { border-left: 0; border-top: 1px solid var(--rule); }
  .cta { padding: 26px; }
}