html, body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #222;
  background: #fafafa;
  margin: 1vw;
  padding: 0.25rem;
  margin-left: auto;
  margin-right: auto;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0.25em 0 0.25em;
  line-height: 1.25;
  color: #111;
}

p {
  margin: 0 0 1em;
  max-width: 70ch;
}

a {
  color: #0077cc;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button, input, select, textarea {
  font: inherit;
  padding: 0.5em 0.75em;
  border: 1px solid #ccc;
  border-radius: 6px;
  background: white;
}

button:hover {
  background: #f0f0f0;
  cursor: pointer;
}

code, pre {
  font-family: Consolas, Monaco, monospace;
  background: #f4f4f4;
  border-radius: 5px;
}

pre {
  padding: 1em;
  overflow-x: auto;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1em 0;
}

th, td {
  padding: 0.5em 0.75em;
  border-bottom: 1px solid #ddd;
  text-align: left;
}

hr {
  border: none;
  border-top: 1px solid #ddd;
  margin: 2em 0;
}

img {
  max-width: 100%;
  border-radius: 8px;
}

ul, ol {
  padding-left: 1.5em;
  margin: 0 0 1em;
}

blockquote {
  margin: 1em 0;
  padding-left: 1em;
  border-left: 4px solid #0077cc;
  color: #555;
}