body {
    font-family: Arial, sans-serif;
    background-color: #ccc;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0;
    padding: 0;
    text-align: center; /* 全体を中央揃え */
}

#filter-sort-controls {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}


button {
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    font-size: 14px;
    cursor: pointer;
    background-color: #ddd;
    color: #333;
    transition: background-color 0.3s, color 0.3s;
    font-weight: bold;    
}

button.active {
    color: #333;
    font-weight: bold;
}

@media (max-width: 768px) {
    .stream-container, #player-container {
        width: 100%;
    }
}