:root {
  color-scheme: light dark;
  --bg: #f7f8f7;
  --surface: #ffffff;
  --text: #1c1c1e;
  --muted: #5f6368;
  --line: #e3e5e3;
  --accent: #0a64d6;
  --ors: #00a3a8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111213;
    --surface: #1c1d1f;
    --text: #f2f2f2;
    --muted: #a5a8ac;
    --line: #2c2e31;
    --accent: #5aa2ff;
    --ors: #3cc7cb;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  padding-inline: 16px;
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}
main, footer { max-width: 42rem; margin: 0 auto; }
main { padding-block: 2.5rem 1rem; }

h1 { font-size: 2rem; line-height: 1.2; margin: 0.5rem 0; }
h2 { font-size: 1.25rem; margin: 2.5rem 0 0.5rem; }
h3 { font-size: 1.05rem; margin: 1.5rem 0 0.25rem; }
p { margin: 0.5rem 0; }
a { color: var(--accent); }
.muted { color: var(--muted); }
/* The app's name inside running text, where "Ab wann" is easily read as the
   phrase "ab wann". Full text colour so it also stands out in grey paragraphs. */
.app { font-weight: 700; color: var(--text); }

.hero { display: flex; gap: 1.25rem; align-items: center; }
.hero img { width: 96px; height: 96px; border-radius: 22px; flex: none; }
.hero p { font-size: 1.1rem; color: var(--muted); margin: 0; }
.intro { font-size: 1.25rem; line-height: 1.4; margin-top: 1.75rem; }
.intro strong { display: block; }
.lead { font-size: 1.15rem; margin-top: 1.75rem; }
.intro + .lead { margin-top: 1rem; }

.cards { display: grid; gap: 12px; margin-top: 1rem; }
@media (min-width: 560px) { .cards { grid-template-columns: 1fr 1fr; } }
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem 1.1rem;
}
.card h3 { margin-top: 0; }
.card p { margin: 0; color: var(--muted); font-size: 0.97rem; }

.example {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.25rem;
  text-align: center;
  margin-top: 1.5rem;
}
.example strong { display: block; font-size: 1.6rem; }
.example span { color: var(--muted); }

.notice {
  border-left: 3px solid var(--line);
  padding: 0.25rem 0 0.25rem 1rem;
  color: var(--muted);
}

footer {
  border-top: 1px solid var(--line);
  padding-block: 1.25rem 2.5rem;
  font-size: 0.93rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}
footer a { color: var(--muted); }