:root {
  color-scheme: dark;
  --bg: #16110e;
  --card: #241912;
  --ink: #f3eadf;
  --muted: #c8b8a4;
  --line: #4a382c;
  --ember: #e8893a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 "Segoe UI", "PingFang SC", "Noto Sans SC", sans-serif;
}

header, main, footer {
  width: min(42rem, calc(100% - 2rem));
  margin-left: auto;
  margin-right: auto;
}

header {
  padding: 2.2rem 0 1rem;
}

header img {
  width: 64px;
  height: 64px;
  image-rendering: pixelated;
}

h1 {
  margin: 0.6rem 0 0.2rem;
  font-size: 2rem;
  letter-spacing: 0.02em;
}

h2 {
  margin: 2rem 0 0.4rem;
  font-size: 1.25rem;
  color: var(--ember);
}

.lang {
  margin: 0;
  color: var(--muted);
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

nav a, main a, footer a { color: var(--ember); }

main section {
  padding: 0.2rem 0 0.4rem;
}

ul { padding-left: 1.2rem; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 0.9rem 1rem;
  margin: 1rem 0;
}

code {
  font-family: Consolas, "Sarasa Mono SC", monospace;
  font-size: 0.92em;
}

footer {
  color: var(--muted);
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--line);
  margin-top: 2rem;
}