:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --text: #222;
  --muted: #666;
  --border: #ddd;
  --accent: #2563eb;
}

* {
  box-sizing: border-box;
}

body {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
  background: var(--bg);
  color: var(--text);

  font-family:
    Inter,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;

  font-size: 18px;
  line-height: 1.75;
}

h1 {
  font-size: 2.5rem;
  line-height: 1.1;
  margin-bottom: 1rem;
  letter-spacing: -0.03em;
}

h2 {
  margin-top: 3rem;
  margin-bottom: 1rem;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
}

p {
  margin: 1.25rem 0;
}

em {
  font-style: normal;
  font-weight: 500;
  border-bottom: 2px solid rgba(37, 99, 235, 0.25);
}

img {
  max-width: 100%;
}

code {
  border-radius: 6px;
  font-size: 0.9em;
  background-color: #eef2ff;
  padding: 0 0;
}

div.highlighter-rouge {
  border-radius: 6px;
  font-size: 0.9em;
  background-color: #eef2ff;
  padding: 0.2em 1em;
  overflow: auto;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;

  background:
    radial-gradient(
      circle at top,
      rgba(37,99,235,0.05),
      transparent 40%
    );
}

p img {
  vertical-align: middle;
  margin: 0 0.2em;
}

.dropCap {
  float: left;
  margin:  0.2em 0.2em;
  height: 4em;
}

.floatLeft {
  float: left;
  margin:  0.5em 0.5em;
  max-width: 50%;
}

.floatRight {
  float: right;
  margin:  0.5em 0.5em;
  max-width: 50%;
}

figcaption {
  font-size: small;
}

details > summary h1,
details > summary h2,
details > summary h3 {
  display: inline-block;
}