.d7w-wrap {
    position: fixed;
    bottom: var(--d7w-bottom, 24px);
    z-index: 2147483000;
    display: flex;
    align-items: center;
    font-family: Arial, Helvetica, sans-serif;
}

.d7w-button {
    width: var(--d7w-size, 60px);
    height: var(--d7w-size, 60px);
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    color: #fff;
    text-decoration: none;
    box-shadow: 0 10px 30px rgba(0,0,0,.22);
    transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
    position: relative;
}

.d7w-button:hover,
.d7w-button:focus {
    color: #fff;
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 14px 34px rgba(0,0,0,.28);
    filter: brightness(1.03);
    outline: none;
}

.d7w-button svg {
    width: 58%;
    height: 58%;
    display: block;
}

.d7w-tooltip {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    white-space: nowrap;
    background: #fff;
    color: #1f2937;
    border-radius: 999px;
    padding: 10px 14px;
    box-shadow: 0 8px 24px rgba(0,0,0,.15);
    font-size: 14px;
    line-height: 1;
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
}

.d7w-wrap:hover .d7w-tooltip,
.d7w-wrap:focus-within .d7w-tooltip {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

.d7w-pulse .d7w-button::after {
    content: '';
    position: absolute;
    inset: -5px;
    border-radius: inherit;
    border: 2px solid rgba(37,211,102,.45);
    animation: d7wPulse 2.2s ease-out infinite;
}

@keyframes d7wPulse {
    0% { transform: scale(.92); opacity: .75; }
    70% { transform: scale(1.22); opacity: 0; }
    100% { transform: scale(1.22); opacity: 0; }
}

@media (max-width: 767px) {
    .d7w-tooltip { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    .d7w-pulse .d7w-button::after { animation: none; }
    .d7w-button, .d7w-tooltip { transition: none; }
}