:root {
  color-scheme: light dark;
  --bg: #f5f5f7;
  --card: #ffffff;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --accent: #d63a2f;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101014;
    --card: #1c1c21;
    --ink: #f2f2f4;
    --muted: #98989f;
    --accent: #ff5a4d;
  }
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  padding: 48px 20px;
}
main { max-width: 680px; margin: 0 auto; }
header { text-align: center; margin-bottom: 40px; }
/* Kurve mit Ideallinie und Wagen im Windschatten — dieselbe Bildidee wie das App-Icon. */
.app-icon {
  width: 84px; height: 84px;
  margin: 0 auto 16px;
  background: linear-gradient(180deg, #23262d, #14161a);
  border-radius: 20px;
  position: relative;
  overflow: hidden;
}
.app-icon .apex {
  position: absolute; left: 16px; top: 16px;
  width: 84px; height: 84px;
  border: 6px solid transparent;
  border-top-color: var(--accent);
  border-left-color: var(--accent);
  border-radius: 50%;
}
.app-icon .car {
  position: absolute; right: 16px; bottom: 18px;
  width: 18px; height: 10px;
  border-radius: 4px;
  background: #f2f2f4;
  box-shadow: -12px 0 10px rgba(255, 90, 77, 0.55);
}
h1 { font-size: 2rem; letter-spacing: -0.02em; }
.subtitle { color: var(--muted); margin-top: 4px; }
section {
  background: var(--card);
  border-radius: 16px;
  padding: 28px 30px;
  margin-bottom: 20px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.07);
}
h2 { font-size: 1.25rem; margin-bottom: 14px; letter-spacing: -0.01em; }
.tldr {
  font-size: 1.05rem; font-weight: 600;
  color: var(--accent);
  margin-bottom: 14px;
}
p { margin-bottom: 12px; }
p:last-child { margin-bottom: 0; }
ul { margin: 14px 0 14px 22px; }
li { margin-bottom: 8px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
footer { text-align: center; color: var(--muted); font-size: 0.85rem; margin-top: 32px; }