/* Einfaches zentriertes Layout */
body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    color: #f0f0f0;
    background-color: #2c2c2c;
    font-family: Arial, sans-serif;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
    background-color: #222222;
    border-radius: 8px;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.login-container h2 {
    margin-bottom: 1.5rem;
}

.input-group {
    margin-bottom: 1rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
}

.input-group input {
    background-color: #646464;
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
}

.login-button {
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
    color: #fff;
    background-color: #007bff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.login-button:hover {
    background-color: #0056b3;
}

.message {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #f00;
}