/* SCROLL TO TOP - THE "ASCENSION" BUTTON */
#scroll-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 60px;
    height: 60px;
    background: rgba(10, 10, 20, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(86, 186, 231, 0.3);
    border-radius: 50%;

    display: flex;
    justify-content: center;
    align-items: center;

    color: var(--color-cyan);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 9999;

    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);

    box-shadow:
        0 10px 30px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(86, 186, 231, 0.1);
}

#scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#scroll-to-top:hover {
    background: var(--color-cyan);
    color: #000;
    transform: translateY(-5px) scale(1.1);
    box-shadow:
        0 20px 40px rgba(86, 186, 231, 0.4),
        0 0 20px rgba(86, 186, 231, 0.6);
    border-color: transparent;
}

#scroll-to-top::before {
    content: '';
    position: absolute;
    inset: -5px;
    border-radius: 50%;
    border: 1px dashed rgba(86, 186, 231, 0.3);
    animation: rotateScrollBtn 10s linear infinite;
    pointer-events: none;
}

@keyframes rotateScrollBtn {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

@media (max-width: 768px) {
    #scroll-to-top {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}