:root {
  --bg: #e4eeff;
  --card: #ffffff;
  --ink: #101840;
  --muted: #3d608f;
  --line: #c9d8f2;
  --accent: #0088f8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a1840;
    --card: #101f4f;
    --ink: #f0f4fa;
    --muted: #a9bfe3;
    --line: #22366e;
    --accent: #5cb4ff;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.shell {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 16px 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
}

.brand img {
  width: 56px;
  height: 56px;
  border-radius: 13px;
}

.brand strong { display: block; font-size: 20px; line-height: 1.2; }
.brand span { color: var(--muted); font-size: 14px; }

h1 { font-size: 34px; line-height: 1.15; margin: 0 0 12px; }

.lede { font-size: 19px; margin: 0 0 8px; }

.updated { color: var(--muted); font-size: 14px; margin: 0 0 28px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 8px 24px 16px;
}

section + section { border-top: 1px solid var(--line); }

h2 { font-size: 20px; margin: 24px 0 8px; }

p, ul { margin: 0 0 16px; }

ul { padding-left: 22px; }

a { color: var(--accent); }

footer { color: var(--muted); font-size: 14px; margin-top: 28px; text-align: center; }