html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
}
body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.container {
    background: white;
    padding: 20px;
    width: 100%;
    flex-grow: 1;
    box-sizing: border-box;
    border-radius: 8px 8px 0 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
h1 {
    color: #333;
    margin-bottom: 20px;
}
.info-display {
    margin-bottom: 20px;
    color: #555;
    text-align: center;
}
.button-container button {
    margin: 5px;
    padding: 10px 20px;
    font-size: 1em;
    border: none;
    border-radius: 6px;
    background-color: #3498db;
    color: white;
    cursor: pointer;
    min-width: 120px;
}
.button-container button:hover {
    background-color: #2980b9;
}
footer {
    padding: 10px 20px;
    font-size: 0.8em;
    color: #666;
    background-color: #fff;
    text-align: center;
    border-top: 1px solid #ddd;
}
footer a {
    color: #3498db;
    text-decoration: none;
    margin: 0 10px;
}
footer a:hover {
    text-decoration: underline;
}
.circle-button {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    background-color: #3498db;
    color: white;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}
.Hintergrund {
    color: #666;
    background-color: #ffffff29;
    text-align: center;
    margin: 20px auto;
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    display: block;
}
/* Popup-Styling */
.popup {
    display: flex; /* Direkt sichtbar beim Laden */
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}
.popup-content {
    background: white;
    padding: 20px;
    border-radius: 8px;
    width: 300px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    position: relative;
}
.popup-content h2 {
    margin-top: 0;
    color: #333;
}
.popup-content input {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
}
.popup-content button {
    padding: 10px 20px;
    font-size: 1em;
    border: none;
    border-radius: 6px;
    background-color: #3498db;
    color: white;
    cursor: pointer;
    margin: 5px;
}
.popup-content button:hover {
    background-color: #2980b9;
}
.close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 20px;
    cursor: pointer;
    color: #666;
}