body {
            font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            background: #0f0f12;
            color: #e6e6eb;
            margin: 0;
            padding: 2rem;
            display: flex;
            justify-content: center;
        }
        .container { max-width: 720px; width: 100%; }
        h1 { font-size: 2.2rem; margin-bottom: 0.5rem; }
        p { line-height: 1.6; color: #c9c9d1; }
        .card {
            background: #1a1a21;
            border-radius: 8px;
            padding: 1.5rem;
            margin-top: 1.5rem;
        }
        a.button {
            display: inline-block;
            margin-top: 1rem;
            padding: 0.75rem 1.25rem;
            background: #6b6bff;
            color: white;
            text-decoration: none;
            border-radius: 8px;
            font-weight: 600;
        }
        a.button:hover { background: #8080ff; }
        audio { width: 100%; margin: 1rem 0; }
        ul { list-style: none; padding: 0; margin: 0; }
        li { margin-bottom: 0.5rem; }
        button.track {
            width: 100%;
            background: #262636;
            color: #e6e6eb;
            border: none;
            padding: 0.75rem;
            border-radius: 8px;
            text-align: left;
            cursor: pointer;
        }
        button.track:hover { background: #34344a; }
        button.track.active { background: #6b6bff; color: #fff; }
        footer {
            margin-top: 3rem;
            font-size: 0.85rem;
            color: #8a8a95;
            text-align: center;
        }
        .cover-image {
            width: 100%;
            max-width: 300px;
            border-radius: 8px;
        }
        #intro-text {
    overflow: hidden;
    position: relative;
    transition: max-height 0.4s ease;
}

#intro-text.collapsed {
    max-height: 5rem; /* ~4 lines of text */
}

#intro-text.collapsed::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4rem;
    background: linear-gradient(
        to bottom,
        rgba(26,26,33,0),
        rgba(26,26,33,1)
    );
}

button.read-more {
    margin-top: 1rem;
    background: none;
    border: none;
    color: #6b6bff;
    font-weight: 600;
    cursor: pointer;
    padding: 0;
}

button.read-more:hover {
    text-decoration: underline;
}