/* Homepage im Aussehen der App: schwarzer Grund, weiße Schrift, haarfeine Linien. */
:root {
  --bg: #000000;
  --text: #ffffff;
  --muted: #9a9a9a;
  --line: #333333;
  color-scheme: dark;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.55;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

main,
.bar,
footer {
  max-width: 44rem;
  margin: 0 auto;
  padding: 0 16px;
}

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

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  letter-spacing: 0.04em;
}

.brand img {
  width: 32px;
  height: 32px;
  border-radius: 7px;
}

.bar nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
}

.bar nav a {
  color: var(--muted);
  text-decoration: none;
}

.bar nav a[aria-current="page"] {
  color: var(--text);
}

.hero {
  text-align: center;
  padding: 56px 0 32px;
}

.hero img {
  width: 112px;
  height: 112px;
  border-radius: 24px;
}

h1 {
  font-size: 2.2rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  margin: 16px 0 8px;
}

.hero p {
  color: var(--muted);
  font-size: 1.15rem;
  margin: 0 auto;
  max-width: 30rem;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-block;
  padding: 12px 20px;
  border: 1px solid var(--text);
  border-radius: 4px;
  text-decoration: none;
}

.button.primary {
  background: var(--text);
  color: var(--bg);
}

.note {
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
  margin-top: 12px;
}

.features {
  list-style: none;
  padding: 0;
  margin: 32px 0;
  border-top: 1px solid var(--line);
}

.features li {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.features strong {
  display: block;
  font-weight: 600;
}

.features span {
  color: var(--muted);
}

h2 {
  font-size: 1.2rem;
  margin: 32px 0 8px;
}

.page h1 {
  font-size: 1.7rem;
  margin-top: 32px;
}

.toc {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.toc a {
  color: var(--muted);
  text-decoration: none;
}

ul {
  padding-left: 20px;
}

li + li {
  margin-top: 6px;
}

.muted {
  color: var(--muted);
}

footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 16px;
  margin-top: 48px;
  padding-top: 16px;
  padding-bottom: 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

footer nav {
  display: flex;
  gap: 16px;
}

footer a {
  color: var(--muted);
}