.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background-color: blue;
    border-radius: 50%;
    display: none;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    z-index: 1000;
}

.back-to-top .arrow {
    color: #ffff00; /* Bright yellow */
    font-size: 28px;
    font-weight: bold;
    line-height: 1; /* Ensure no extra line height affects positioning */
    text-align: center; /* Explicitly center text */
    display: flex; /* Treat the arrow as a flex item for precise centering */
    justify-content: center;
    align-items: center;
    width: 100%; /* Ensure it takes full width of parent for centering */
    height: 100%; /* Ensure it takes full height of parent for centering */
}

.back-to-top:hover {
    background-color: blueviolet;
}