:root {
  color-scheme: dark;
  --ink: #0b0b0c;
  --panel: #151517;
  --line: rgba(244, 241, 234, 0.14);
  --paper: #f4f1ea;
  --muted: #a3a099;
  --accent: #ff3b2f;
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font: 16px/1.65 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 44rem;
  margin: 0 auto;
  padding: 4rem 16px 6rem;
}

a {
  color: var(--paper);
  text-decoration-color: var(--accent);
  text-underline-offset: 3px;
}

a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

header.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid var(--line);
  padding: 1.25rem 16px;
}

header.brand img {
  width: 34px;
  height: 34px;
  border-radius: 10px;
}

header.brand span {
  font-weight: 650;
  letter-spacing: 0.01em;
}

h1 {
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  line-height: 1.15;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.15rem;
  margin: 2.5rem 0 0.5rem;
}

p.lead {
  color: var(--muted);
  font-size: 1.05rem;
}

.updated {
  color: var(--muted);
  font-size: 0.9rem;
}

ul {
  padding-left: 1.1rem;
}

li {
  margin: 0.35rem 0;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin: 1.5rem 0;
}

code, .code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.95rem;
  word-break: break-all;
}

button {
  font: inherit;
  font-weight: 600;
  color: var(--ink);
  background: var(--paper);
  border: 0;
  border-radius: 999px;
  padding: 0.6rem 1.2rem;
  cursor: pointer;
}

button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
  padding: 1.5rem 16px 3rem;
  text-align: center;
}

footer a {
  margin: 0 0.4rem;
}