body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
    color: #000;
}

h1 {
    color: #000;
    font-weight: bold;
    border-bottom: 2px solid #000;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

label {
    margin-top: 10px;
    font-size: 18px;
}

.sidenav {
    height: 100%;
    width: 150px;
    position: fixed;
    z-index: 1;
    top: 0;
    left: 0;
    background: linear-gradient(-45deg, #e73c7e, #23a6d5);
    overflow-x: hidden;
    padding-top: 20px;
}

.sidenav a {
    padding: 6px 8px 6px 16px;
    text-decoration: none;
    font-size: 18px;
    color: #000;
    display: block;
}

.sidenav a:hover {
    color: #f1f1f1;
}

.input-group {
    margin-top: 20px;
    display: flex;
    flex-direction: column; /* Änderung auf Spaltenlayout */
    gap: 10px;
    margin-bottom: 15px;
}

.input-group label, .input-group select {
    flex: 1;
    width: auto; /* Breite auf Auto setzen, um nur den benötigten Platz einzunehmen */
}

.input2-group {
    margin-top: 20px;
    display: flex;
    gap: 50px;
    margin-bottom: 15px;
    align-items: center;
    justify-content: center;
}

.input2-group label, .input2-group select {
    flex: 1;
    width: auto; /* Breite auf Auto setzen, um nur den benötigten Platz einzunehmen */
}

input, select, button {
    padding: 16px;
    font-size: 16px;
    border: 2px solid #000;
    border-radius: 16px;
    background-color: transparent;
    color: #000;
}

button {
    margin-top: 20px;
    background-color: #000;
    color: #fff;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease;
}

button:hover {
    background-color: #fff;
    color: #000;
}

p {
    margin-top: 15px;
    font-size: 18px;
}

span {
    font-weight: bold;
}

@keyframes gradient {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}