body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f4f4f4; /* Standaard achtergrondkleur */
    margin: 0;
    padding: 0;
    transition: background-color 0.3s ease; /* Soepele overgang voor achtergrondkleur */
}

#app {
    padding: 20px;
}

h1 {
    color: #333;
}

h2 {
    margin-top: 20px;
    color: #555;
    font-size: 20px;
    text-align: left;
}

#buttons-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 10px; /* Ruimte tussen knoppen */
    height: calc(100vh - 200px); /* Houd rekening met de titel en andere knoppen */
    overflow-y: auto; /* Scrollen als er te veel knoppen zijn */
}

#buttons-container button {
    margin: 10px;
    padding: 15px 20px;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#buttons-container button:hover {
    background-color: #0056b3;
}

button {
    padding: 15px 20px;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

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

.sound-button {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    font-size: 14px;
    line-height: 1.2;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    margin: 10px;
    overflow: hidden;
    white-space: normal; /* Allow text to wrap */
    word-wrap: break-word; /* Break long words if needed */
    padding: 10px;
    box-sizing: border-box;
    min-height: 100px; /* Minimum height to ensure consistent sizing */
    width: 150px; /* Fixed width for consistency */
}

.sound-button:hover {
    background-color: #0056b3;
    transform: scale(1.05); /* Maak de knop iets groter bij hover */
}

#stop-button {
    margin-top: 20px;
    padding: 20px 40px;
    font-size: 18px;
    border: none;
    border-radius: 5px;
    background-color: #dc3545;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#stop-button:hover {
    background-color: #a71d2a;
}

.folder-container {
    margin-bottom: 20px;
    text-align: left;
}

.folder-button {
    padding: 10px 20px;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    background-color: #28a745;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin-bottom: 10px;
}

.folder-button:hover {
    background-color: #218838;
}

.sound-buttons {
    margin-left: 20px;
}

#next-category-button {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 10px 20px;
    font-size: 14px;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#next-category-button:hover {
    background-color: #0056b3;
}

#back-to-overview-button {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 10px 20px;
    font-size: 14px;
    border: none;
    border-radius: 5px;
    background-color: #6c757d;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#back-to-overview-button:hover {
    background-color: #5a6268;
}

/* Default style for category buttons */
.category-button {
    padding: 15px 20px;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin: 10px;
}

/* Unique styles for each category */
.category-uncategorized {
    background-color: #f4f4f4;
    color: #333;
}

.category-0-draaimolen {
    background-color: #ffcccc;
}

.category-category2 {
    background-color: #ccffcc;
}

.category-category3 {
    background-color: #ccccff;
}

/* Add hover effects for each category */
.category-uncategorized:hover {
    background-color: #e0e0e0;
}

.category-0-draaimolen:hover {
    background-color: #ff9999;
}

.category-category2:hover {
    background-color: #99ff99;
}

.category-category3:hover {
    background-color: #9999ff;
}

.pagination-container {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.pagination-button {
    padding: 10px 20px;
    font-size: 14px;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

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

#volume-container {
    position: fixed;
    top: 50%;
    left: -100px; /* Zorg ervoor dat de volumebalk 10px van de linkerrand staat */
    transform: translateY(-50%); /* Alleen verticaal centreren */
    transform: rotate(-90deg); /* Draai de volumebalk 90 graden */
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #f4f4f4;
    padding: 10px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    z-index: 1000; /* Zorg ervoor dat de volumebalk boven andere elementen staat */
}

#volume-bar {
    width: 250px; /* Maak de volumebalk smaller */
    height: 20px; /* Maak de volumebalk verticaal langer */
    appearance: none;
    background: #007bff;
    border-radius: 10px;
    outline: none;
    cursor: pointer;
    margin: 10px 0; /* Voeg wat ruimte toe rond de slider */
}

#volume-bar::-webkit-slider-thumb {
    appearance: none;
    width: 25px; /* Maak de schuifregelaar groter */
    height: 25px;
    background: #0056b3;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

#volume-bar::-moz-range-thumb {
    width: 25px; /* Maak de schuifregelaar groter */
    height: 25px;
    background: #0056b3;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

#volume-bar::-ms-thumb {
    width: 25px; /* Maak de schuifregelaar groter */
    height: 25px;
    background: #0056b3;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.nav-button {
    display: none;
}

.nav-button.visible {
    display: block;
}