/* =============================================
   Audio: Music Toggle Button
   ============================================= */

.music-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    background: linear-gradient(135deg, #232f3e, #131921);
    border: 2px solid #f90;
    color: #f90;
    border-radius: 50%;
    width: 52px;
    height: 52px;
    font-size: 1.4rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 18px rgba(0,0,0,0.5), 0 0 10px rgba(255,153,0,0.3);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    outline: none;
}

.music-btn:hover {
    transform: scale(1.12);
    box-shadow: 0 6px 24px rgba(0,0,0,0.6), 0 0 18px rgba(255,153,0,0.5);
    background: linear-gradient(135deg, #2d4058, #1a2634);
}

.music-btn.muted {
    border-color: #888;
    color: #888;
    box-shadow: 0 4px 18px rgba(0,0,0,0.4);
}