:root {
  color-scheme: dark light;
  --bg: #0f1115;
  --card: #1a1d24;
  --text: #e8eaed;
  --muted: #9aa0a6;
  --accent: #5865f2;
  --border: #2a2f3a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
main { max-width: 800px; margin: 0 auto; padding: 2rem 1.25rem 4rem; }
body.home main { max-width: 720px; padding-top: 2.5rem; }
.topbar { display: flex; justify-content: flex-end; margin-bottom: 1.25rem; }
.lang-wrap { display: flex; align-items: center; gap: 8px; }
.lang-kicker {
  display: none;
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
html[data-lang="en"] .lang-kicker[data-lang="en"],
html[data-lang="de"] .lang-kicker[data-lang="de"],
html[data-lang="pl"] .lang-kicker[data-lang="pl"],
html:not([data-lang]) .lang-kicker[data-lang="en"] { display: inline; }
.lang-select {
  width: auto;
  min-width: 132px;
  padding: 6px 8px;
  font: inherit;
  font-size: 13px;
  font-weight: 650;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.lang-select:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.lang-block { display: none; }
html[data-lang="en"] .lang-block[data-lang="en"],
html[data-lang="de"] .lang-block[data-lang="de"],
html[data-lang="pl"] .lang-block[data-lang="pl"],
html:not([data-lang]) .lang-block[data-lang="en"] { display: block; }
nav.crumbs { margin-bottom: 1.5rem; font-size: 0.9rem; }
nav.crumbs a { color: var(--accent); text-decoration: none; }
nav.crumbs a:hover { text-decoration: underline; }
h1 { font-size: 1.75rem; margin: 0 0 0.75rem; }
body.home h1 { margin-bottom: 0.5rem; }
h2 {
  font-size: 1.2rem;
  margin: 2rem 0 0.75rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.35rem;
}
h3 { font-size: 1.05rem; margin: 1.25rem 0 0.5rem; }
p.lead { color: var(--muted); margin: 0 0 2rem; }
.meta { color: var(--muted); margin-bottom: 1.5rem; }
.meta strong { color: var(--text); }
ul, ol { padding-left: 1.25rem; }
li { margin: 0.35rem 0; }
a { color: var(--accent); }
hr { border: none; border-top: 1px solid var(--border); margin: 1.5rem 0; }
.note { color: var(--muted); font-size: 0.9rem; font-style: italic; }
code { background: var(--card); padding: 0.1em 0.35em; border-radius: 4px; font-size: 0.9em; }
pre {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.15rem;
  overflow-x: auto;
  white-space: pre-wrap;
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.55;
}
.cards { display: grid; gap: 1rem; }
a.card {
  display: block;
  padding: 1.25rem 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: inherit;
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;
}
a.card:hover { border-color: var(--accent); transform: translateY(-1px); }
a.card strong { display: block; font-size: 1.1rem; margin-bottom: 0.35rem; color: var(--text); }
a.card span { color: var(--muted); font-size: 0.95rem; }
table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: 0.95rem; }
th, td {
  border: 1px solid var(--border);
  padding: 0.6rem 0.75rem;
  text-align: left;
  vertical-align: top;
}
th { background: var(--card); }
footer { margin-top: 2.5rem; color: var(--muted); font-size: 0.85rem; }
@media (max-width: 640px) {
  table { display: block; overflow-x: auto; }
}