.wa-button {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    box-shadow: 2px 2px 3px #999;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
}

.wa-button:hover {
    filter: brightness(0.9);
}

.wa-button.bottom-right {
    right: 40px;
}

.wa-button.bottom-left {
    left: 40px;
}

.wa-button svg {
    width: 70%;
    height: 70%;
}

/* Hidden text for screen readers */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal !important;
}

@media screen and (max-width: 767px) {
    .wa-button {
        width: 50px;
        height: 50px;
        bottom: 20px;
    }

    .wa-button.bottom-right {
        right: 20px;
    }

    .wa-button.bottom-left {
        left: 20px;
    }
}