@keyframes fbOddsPop {
    0%, 100% { transform: translateY(0) scale(1); }
    40% { transform: translateY(-8px) scale(1.08); }
    60% { transform: translateY(-4px) scale(1.02); }
}

@keyframes fbCoreSpin {
    0% { box-shadow: 0 0 0 0 rgba(0, 150, 255, .5), 0 8px 20px rgba(0, 0, 0, .4); }
    70% { box-shadow: 0 0 0 12px rgba(0, 150, 255, 0), 0 8px 20px rgba(0, 0, 0, .4); }
    100% { box-shadow: 0 0 0 0 rgba(0, 150, 255, 0), 0 8px 20px rgba(0, 0, 0, .4); }
}

.floating-btn {
    position: fixed;
    right: 18px;
    bottom: 118px;
    z-index: 39;
    width: 64px;
    height: 78px;
    display: block;
    text-decoration: none;
}

.floating-btn__odds {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: .02em;
    color: #041018;
    background: linear-gradient(180deg, #1ecb7a, #12a35e);
    padding: 3px 8px;
    border-radius: 3px;
    font-variant-numeric: tabular-nums;
    box-shadow: 0 4px 10px rgba(30, 203, 122, .4);
    animation: fbOddsPop 2.6s ease-in-out infinite;
    pointer-events: none;
}

.floating-btn__core {
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 56px;
    height: 56px;
    margin-left: -28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(145deg, #33adff 0%, #0070c9 100%);
    border: 2px solid rgba(255, 255, 255, .25);
    animation: fbCoreSpin 2.4s ease-out infinite;
    transition: transform .2s;
}

.floating-btn__core img {
    width: 26px;
    height: 26px;
    display: block;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, .35));
}

.floating-btn:hover .floating-btn__core {
    transform: scale(1.08);
    animation-play-state: paused;
}

.floating-btn:hover .floating-btn__odds {
    animation-play-state: paused;
}

@media (min-width: 1500px) {
    .floating-btn {
        right: calc((100vw - 1440px) / 2 + 18px);
    }
}

@media (max-width: 768px) {
    .floating-btn {
        right: 12px;
        bottom: 100px;
        width: 56px;
        height: 70px;
    }
    .floating-btn__core {
        width: 48px;
        height: 48px;
        margin-left: -24px;
    }
    .floating-btn__core img {
        width: 22px;
        height: 22px;
    }
    .floating-btn__odds {
        font-size: 10px;
        padding: 2px 6px;
    }
}