```css
html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: #111111;
  color: #e5e5e5;
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Helvetica,
    Arial,
    sans-serif;
}

main {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

h1 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.12em;
}

.github-link {
  display: inline-flex;
  color: #e5e5e5;
  transition: opacity 0.2s ease;
}

.github-link:hover {
  opacity: 0.65;
}

.github-link svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}
```