.d-flex{
    display: flex;
}

.d-col{
    display: flex;
    flex-direction: column;
}

.mr-10{
    margin-right: 10px;
}

#scrollToTopBtn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: none;
    color: #f04f48;
    background-color: transparent;
    font-weight: bold;
    border: 2px solid #f04f48;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    padding: 15px;
    font-size: 24px;
    cursor: pointer;
    z-index: 100;
    transition: opacity 0.3s ease;
}


#scrollToTopBtn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid rgba(240, 79, 72, 0.5);
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
    animation: radar-blur 2s infinite;
    z-index: -1;
}

#scrollToTopBtn:hover {
    cursor: pointer;
}

@keyframes radar-blur {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }

    80% {
        opacity: 0;
    }

    100% {
        transform: translate(-50%, -50%) scale(2);
        opacity: 0;
    }
}