:root {
    --button-bg-color: #ffffff;
    --icon-fill-color: #25d366;
}

.floating-button-container {
    position: fixed;
    z-index: 9999;
    bottom: 20px;
    right: 20px;
}

.floating-action-button {
    all: unset;
    background-color: var(--button-bg-color);
    border-radius: 50%;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.15);
    padding: 0px;
    width: 70px; 
    height: 70px; 
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: background-color 0.3s;
}