:root {
  --hauptfarbe: #1d3557;
  --akzent: #e63946;
  --hell: #f1faee;
  --dunkel: #333;
}

body {
  font-family: 'Poppins', sans-serif;
  margin: 0;
  background: var(--hell);
  color: var(--dunkel);
  line-height: 1.6;
}

header.hero {
  position: relative;
  height: 80vh;
  background: url('https://picsum.photos/1600/900?blur') center/cover no-repeat;
  display: flex;
  justify-content: center;
  align-items: center;
  color: white;
  text-align: center;
}

header.hero .overlay {
  background: rgba(0,0,0,0.5);
  padding: 2rem;
  border-radius: 12px;
}

header.hero h1 {
  font-size: 3rem;
  margin: 0 0 1rem;
}

.cta {
  display: inline-block;
  padding: 1rem 2rem;
  background: var(--akzent);
  color: white;
  font-weight: 600;
  border-radius: 50px;
  text-decoration: none;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  transition: 0.3s;
}

.cta:hover {
  background: #d62839;
}

.topnav {
  position: absolute;
  top: 20px;
  right: 40px;
}

.topnav a {
  margin-left: 1rem;
  color: white;
  text-decoration: none;
  font-weight: 600;
}

section {
  max-width: 900px;
  margin: 3rem auto;
  padding: 2rem;
  background: white;
  border-radius: 15px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.card {
  background: #fff;
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1rem 0;
  box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

input, textarea, select, button {
  padding: 0.8rem;
  font-size: 1rem;
  border-radius: 8px;
  border: 1px solid #ccc;
}

button {
  background: var(--akzent);
  color: white;
  border: none;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: #d62839;
}

footer {
  text-align: center;
  padding: 2rem;
  background: var(--dunkel);
  color: white;
}