body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0a0a0f;
  color: #f5f5f5;
  line-height: 1.6;
}

header.hero {
  background: linear-gradient(to bottom, #000000, #0b1a33);
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

.hero-content p {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.btn {
  background: #1e90ff;
  color: white;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  border-radius: 5px;
}

section {
  padding: 3rem 1.5rem;
  max-width: 1000px;
  margin: auto;
}

h2 {
  color: #1e90ff;
  margin-bottom: 1rem;
}

.books .book {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.books img {
  max-width: 200px;
  border-radius: 8px;
}

label {
  display: block;
  margin-top: 1rem;
}

input, textarea {
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.25rem;
  border: none;
  border-radius: 5px;
}

button {
  margin-top: 1rem;
  padding: 0.75rem 1.5rem;
  background: #1e90ff;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

footer {
  background: #000;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
}

a {
  color: #1e90ff;
}

.datenschutz {
  background: #111;
  padding: 3rem 1.5rem;
  margin-top: 2rem;
  border-top: 2px solid #1e90ff;
}
.datenschutz h2, .datenschutz h3 {
  color: #1e90ff;
}
.datenschutz p {
  margin-bottom: 1rem;
}