:root {
  --bg: #fbf8ff;
  --fg: #1c1b20;
  --muted: #5d5a66;
  --accent: #5b4a9e;
  --card: #ffffff;
  --line: #e4e0ee;
  --code-bg: #f1edf8;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141318;
    --fg: #e7e1ee;
    --muted: #a8a3b3;
    --accent: #c6b8ff;
    --card: #1d1b23;
    --line: #34313d;
    --code-bg: #26232e;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 3rem 1rem 4rem;
}

h1 {
  font-size: 2rem;
  line-height: 1.2;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.15rem;
  margin: 2rem 0 0.5rem;
}

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

.lead { font-size: 1.15rem; color: var(--muted); margin-top: 0; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}

dl { margin: 0; }
dt { color: var(--muted); font-size: 0.9rem; margin-top: 0.75rem; }
dt:first-child { margin-top: 0; }
dd { margin: 0.15rem 0 0; }

code, .mono {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  background: var(--code-bg);
  border-radius: 6px;
  padding: 0.1rem 0.35rem;
  overflow-wrap: anywhere;
}

.code-big { font-size: 1.2rem; letter-spacing: 0.04em; }

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

footer {
  margin-top: 3rem;
  color: var(--muted);
  font-size: 0.9rem;
}

/* one language shown at a time; lang.js picks it */
[data-lang] { display: none; }
html.lang-en [data-lang="en"], html.lang-es [data-lang="es"] { display: revert; }

.hidden { display: none !important; }