:root {
  color-scheme: light;
  --bg: #eef3fb;
  --fg: #132033;
  --muted: #4e5f79;
  --card: #ffffff;
  --border: #d5dfef;
  --accent: #0b5fff;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background:
    radial-gradient(circle at top right, rgba(11,95,255,0.10), transparent 32rem),
    linear-gradient(180deg, #f8fbff 0%, var(--bg) 100%);
  color: var(--fg);
}

.shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}

.shell__card {
  width: min(100%, 56rem);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 2rem;
  box-shadow: 0 16px 40px rgba(19, 32, 51, 0.08);
}

.shell__eyebrow {
  margin: 0 0 0.5rem;
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4vw, 3rem);
}

p, li {
  color: var(--muted);
  line-height: 1.6;
}

.shell__list {
  margin: 1rem 0 0;
  padding-left: 1.25rem;
}

.shell__meta {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  display: grid;
  gap: 0.35rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9rem;
}

code {
  background: #eef4ff;
  border-radius: 0.35rem;
  padding: 0.15rem 0.35rem;
}