* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f2f6f8;
  color: #222;
}

header {
  background: #2f80ed;
  color: white;
  text-align: center;
  padding: 30px 15px;
}

header h1 {
  margin: 0;
  font-size: 36px;
}

header p {
  margin-top: 8px;
  font-size: 18px;
}

main {
  max-width: 900px;
  margin: 20px auto;
  padding: 0 15px;
}

.hero,
.card,
.aktivitaet {
  background: white;
  padding: 20px;
  margin-bottom: 20px;
  border-radius: 14px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

button {
  background: #2f80ed;
  color: white;
  border: none;
  padding: 12px 18px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 16px;
}

button:hover {
  background: #1c66c9;
}

input,
textarea,
select {
  width: 100%;
  padding: 12px;
  margin-bottom: 12px;
  border: 1px solid #ccc;
  border-radius: 10px;
  font-size: 16px;
}

textarea {
  min-height: 90px;
}

.hidden {
  display: none;
}

.aktivitaet h3 {
  margin-top: 0;
}

.badge {
  display: inline-block;
  background: #e8f1ff;
  color: #2f80ed;
  padding: 6px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-size: 16px;
}

label input {
  width: auto;
  margin-right: 8px;
}