:root {
  --bg: #0b1020;
  --panel: #111a33;
  --text: #e8ecff;
  --muted: #aeb8dc;
  --link: #84b8ff;
  --link-hover: #b8d6ff;
  --border: #2c3b63;
  --code-bg: #0a1329;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: radial-gradient(circle at 15% 15%, #16254a 0%, var(--bg) 55%);
  color: var(--text);
  font-family: "Segoe UI", "Noto Sans", "Helvetica Neue", sans-serif;
  line-height: 1.6;
}

.page {
  max-width: 860px;
  margin: 2rem auto;
  padding: 1.4rem 1.2rem;
  background: color-mix(in srgb, var(--panel) 94%, black 6%);
  border: 1px solid var(--border);
  border-radius: 12px;
}

h1,
h2,
h3 {
  line-height: 1.25;
}

h1 {
  margin-top: 0;
}

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

a:hover {
  color: var(--link-hover);
}

p,
li {
  color: var(--text);
}

code,
pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}

code {
  padding: 0.12rem 0.32rem;
}

pre {
  padding: 0.8rem;
  overflow-x: auto;
}

img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
}

@media (max-width: 700px) {
  .page {
    margin: 1rem;
    padding: 1rem;
  }
}