.fmb-bubble {
    position: fixed;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.6), rgba(255,255,255,0.1), transparent 70%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow:
        inset 0 0 8px rgba(255,255,255,0.4),
        0 0 12px rgba(173,216,230,0.4),
        0 8px 20px rgba(0,0,0,0.2);
    animation: float 6s ease-in-out infinite, wobble 3s ease-in-out infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #ffffffcc;
    font-weight: bold;
    user-select: none;
    cursor: pointer;
    z-index: 9999;
    padding: 10px;
    backdrop-filter: blur(3px);
    transition: transform 0.3s ease, opacity 0.3s ease;
    pointer-events: auto;
    mix-blend-mode: screen;
    overflow: hidden;
}

/* Hover interaction */
.fmb-bubble:hover {
    transform: scale(1.1);
    z-index: 10000;
}

/* Glossy light reflection */
.fmb-bubble::after {
    content: '';
    position: absolute;
    top: 15%;
    left: 20%;
    width: 30%;
    height: 30%;
    background: radial-gradient(circle, rgba(255,255,255,0.7), transparent);
    border-radius: 50%;
    filter: blur(2px);
    opacity: 0.8;
    pointer-events: none;
}

/* Bobbing float up/down */
@keyframes float {
    0%   { transform: translateY(0px); }
    50%  { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

/* Gentle wobble rotation */
@keyframes wobble {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(1deg); }
    75% { transform: rotate(-1deg); }
}

/* 💥 Blast animation on click */
@keyframes bubble-pop {
    0% {
        transform: scale(1);
        opacity: 1;
        filter: blur(0px);
    }
    50% {
        transform: scale(1.5);
        opacity: 0.6;
        filter: blur(2px);
    }
    100% {
        transform: scale(0);
        opacity: 0;
        filter: blur(4px);
    }
}

/* Apply this class via JS to trigger the pop */
.fmb-pop {
    animation: bubble-pop 0.5s forwards;
    pointer-events: none;
}