body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.player {
    background: rgba(255,255,255,0.1);
    padding: 25px;
    border-radius: 20px;
    text-align: center;
    width: 300px;
    backdrop-filter: blur(10px);
    box-shadow: 0 0 30px rgba(0,0,0,0.5);
}

#cover {
    width: 100%;
    border-radius: 15px;
    margin-bottom: 15px;
}

h3 {
    margin: 5px 0;
}

.controls button {
    padding: 10px 15px;
    margin: 5px;
    border: none;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    background: #ff4b2b;
    color: white;
    transition: 0.3s;
}

.controls button:hover {
    background: #ff416c;
}

#progress {
    width: 100%;
    margin: 10px 0;
}

.volume {
    margin-top: 10px;
}

#playlist {
    margin-top: 15px;
    text-align: left;
    max-height: 150px;
    overflow-y: auto;
}

#playlist li {
    padding: 8px;
    cursor: pointer;
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

#playlist li:hover {
    background: rgba(255,255,255,0.2);
}