body {
    background: linear-gradient(to bottom, #03517A, #0a5f90);
    color: white;
    font-family: 'Barlow', sans-serif;
    text-align: center;
}
h1, h2 {
    font-family: 'Bitter', serif;
}
#video-container {
    position: relative;
    text-align: center;
    margin-top: 20px;
}
#mitmachen-btn {
    position: absolute;
    bottom: 10%;
    left: 50%;
    transform: translateX(-50%);
    display: none;
    font-size: 1.8rem;
    padding: 20px 40px;
    animation: fadeIn 1.0s ease-in-out;
}
@keyframes fadeIn {
    0% { opacity: 0; transform: translateX(-50%) scale(0.8); }
    100% { opacity: 1; transform: translateX(-50%) scale(1); }
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.7);
    border: none;
    color: black;
    font-size: 3rem;
    padding: 20px 40px;
    border-radius: 50px;
    cursor: pointer;
}
.play-button:hover {
    background: rgba(255, 255, 255, 0.9);
}

.section {
    padding: 30px 20px;
    background: white;
    color: black;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    margin: 10px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}
.row.same-height .col-md-4 {
    display: flex;
}
.footer {
    background-color: #002266;
    padding: 20px;
    margin-top: 50px;
    text-align: center;
}
.footer a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
}
.modal-content {
    background-color: white;
    color: #222;
    border-radius: 10px;
}
.modal-content a {
    color: #007bff;
}
.modal-header {
    border-bottom: 1px solid #ccc;
}
.modal-footer {
    border-top: 1px solid #ccc;
}

@media (max-width: 576px) {
    #mitmachen-btn {
        position: absolute;
        bottom: -27%;
        left: 50%;
        transform: translateX(-50%);
        display: none;
        font-size: 1.8rem;
        padding: 20px 40px;
        animation: fadeIn 1.5s ease-in-out;
    }
    @keyframes fadeIn {
        0% { opacity: 0; transform: translateX(-50%) scale(0.8); }
        100% { opacity: 1; transform: translateX(-50%) scale(1); }
    }
}