.mute-btn {
    position: absolute;
    top: 30px;
    right: 30px;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    width: 50px;
    height: 50px;
    border-radius: 4px; /* Techy square look */
    cursor: pointer;
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0;
    line-height: 1;
    font-size: 1.5rem;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    backdrop-filter: blur(5px);
    box-shadow: 0 0 10px rgba(0, 255, 204, 0.2);
    overflow: hidden;
}

/* Tech corners */
.mute-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 6px;
    border-top: 2px solid var(--primary-color);
    border-left: 2px solid var(--primary-color);
    transition: all 0.3s ease;
}

.mute-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 6px;
    height: 6px;
    border-bottom: 2px solid var(--primary-color);
    border-right: 2px solid var(--primary-color);
    transition: all 0.3s ease;
}

.mute-btn:hover {
    background: rgba(0, 255, 204, 0.1);
    box-shadow: 0 0 20px var(--primary-color);
    transform: scale(1.1);
    text-shadow: 0 0 8px var(--primary-color);
}

.mute-btn:hover::before,
.mute-btn:hover::after {
    width: 100%;
    height: 100%;
    opacity: 0.5;
}

.mute-btn.muted {
    border-color: var(--secondary-color);
    color: var(--secondary-color);
    box-shadow: 0 0 10px rgba(255, 0, 85, 0.2);
}

.mute-btn.muted::before {
    border-color: var(--secondary-color);
}

.mute-btn.muted::after {
    border-color: var(--secondary-color);
}

.mute-btn.muted:hover {
    background: rgba(255, 0, 85, 0.1);
    box-shadow: 0 0 20px var(--secondary-color);
    text-shadow: 0 0 8px var(--secondary-color);
}