.playlist-header {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}
.arrow-btn {
    background: rgba(34,34,34,0.7);
    color: #fff;
    border: none;
    font-size: 2rem;
    padding: 0 16px;
    cursor: pointer;
    border-radius: 50%;
    transition: background 0.2s;
}
.arrow-btn:hover {
    background: rgba(34,34,34,1);
}
#playlist-title {
    margin: 0 24px;
    font-size: 2.2rem;
    color: #fff;
    letter-spacing: 2px;
}
body {
    font-family: Arial, sans-serif;
    background: #000000;
    color: #fff;
    margin: 0;
    padding: 0;
    overflow: hidden;
}
#glcanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: block;
    z-index: 1;
}
.container.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0.0, 0, 0.0);
    z-index: 2;
    pointer-events: auto;
}
#metadata img {
    max-width: 120px;
    border-radius: 8px;
    margin-bottom: 12px;
}