* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

.container {
    margin: 0 15px;
}

.form-box {
    width: 100%;
    max-width: 450px;
    padding: 30px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 0px 10px rgba(0, 0, 0, 0.1);
    display: none;
}

.form-box.active {
    display: block;
}

h2 {
    font-size: 34px;
    text-align: center;
    margin-bottom: 20px;
}

input,
 select{
    width: 100%;
    padding: 12px;
    background: #eee;
    border-radius: 6px;
    border: none;
    outline: none;
    font-size: 16px;
    color: #333;
    margin-bottom: 20px;
}

button {
    width: 100%;
    padding: 12px;
    background: #7494ec;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-size: 16px;
    color: #fff;
    font-weight: 500;
    margin-bottom: 20px;
    transition: 0.5s;
}

button:hover {
    background: #6884d3;
}

p {
    font-size: 14.5px;
    text-align: center;
    margin-bottom: 10px;
}

p a {
    color: #7494ec;
    text-decoration: none;
}

p a:hover {
    text-decoration: underline;
}

.error-message {
    padding: 12px;
    background: #f8d7da;
    border-radius: 6px;
    font-size: 16px;
    color: #a42834;
    text-align: center;
    margin-bottom: 20px;
}

footer {
    background-color: #003061;
    color: white;
    text-align: center;
    padding: 1em 0;
}

nav {
    background-color: #004080;
    padding: 15px 30px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.menu {
    display: flex;
    justify-content: center;
    gap: 30px;
    list-style: none;
}

.menu li a {
    text-decoration: none;
    color: white;
    font-size: 18px;
    padding: 8px 16px;
    border-radius: 6px;
    transition: background-color 0.3s, color 0.3s;
}

.menu li a:hover {
    background-color: #ffcc00;
    color: #004080;
}

/* Responsiv für kleinere Bildschirme */
@media (max-width: 600px) {
    .menu {
    flex-direction: column;
    align-items: center;
    }
}
        
main {
    padding: 20px;
}