:root {
  color-scheme: dark;
  --bg: #050609;
  --panel: #14151d;
  --edge: rgba(255, 255, 255, 0.09);
  --text: #eef3fb;
  --muted: rgba(220, 230, 244, 0.68);
  --dim: rgba(220, 230, 244, 0.46);
  --cyan: #49e8ff;
  --magenta: #ff3d7f;
  --lime: #8affb5;
  font-family: "JetBrains Mono", "Fira Code", "IBM Plex Mono", "SF Mono",
    "Menlo", ui-monospace, monospace;
  color: var(--text);
  background: var(--bg);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 12%, rgba(73, 232, 255, 0.08), transparent 42%),
    radial-gradient(circle at 82% 88%, rgba(255, 61, 127, 0.09), transparent 44%),
    linear-gradient(180deg, #050609, #090a12 70%, #050609);
}

.page-shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 44px;
}

.page-nav,
.page-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-nav {
  justify-content: space-between;
  margin-bottom: 28px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 3px;
  color: #fff;
  text-decoration: none;
}

.brand strong {
  font-size: 1.05rem;
  letter-spacing: 0.16em;
}

.brand span {
  color: var(--dim);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

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

.nav-links a,
.page-footer a {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 5px 10px;
  border: 1px solid var(--edge);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
}

.nav-links a:hover,
.page-footer a:hover,
.nav-links a:focus-visible,
.page-footer a:focus-visible {
  border-color: rgba(73, 232, 255, 0.48);
  color: #e7faff;
}

main {
  padding: 28px;
  border: 1px solid var(--edge);
  border-radius: 14px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent),
    var(--panel);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.4);
}

h1 {
  margin: 0 0 14px;
  max-width: 760px;
  font-size: clamp(2rem, 8vw, 4.6rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin: 28px 0 10px;
  color: var(--lime);
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

p,
li {
  color: var(--muted);
  line-height: 1.65;
}

p {
  margin: 0 0 14px;
}

ul {
  padding-left: 20px;
}

.lede {
  max-width: 720px;
  color: var(--text);
  font-size: 1.05rem;
}

.notice {
  margin: 24px 0;
  padding: 16px;
  border-left: 3px solid var(--magenta);
  background: rgba(255, 61, 127, 0.06);
  color: var(--text);
}

pre {
  overflow-x: auto;
  padding: 16px;
  border: 1px solid var(--edge);
  border-radius: 10px;
  background: #07080d;
  color: var(--text);
  line-height: 1.5;
}

.page-footer {
  margin-top: 18px;
  color: var(--dim);
  font-size: 0.72rem;
}

@media (max-width: 640px) {
  .page-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  main {
    padding: 20px;
  }
}