:root {
  --wfb-green: #25d366;
  --wfb-green-dark: #128c7e;
  --wfb-green-bright: #52e88a;
  --wfb-text: #ffffff;
  --wfb-shadow: rgba(18, 140, 126, 0.32);
}

.wfb-whatsapp-button {
  position: fixed;
  z-index: 9999;
  bottom: 22px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px 12px 12px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--wfb-text);
  background: linear-gradient(140deg, var(--wfb-green), var(--wfb-green-dark));
  box-shadow: 0 14px 28px -14px var(--wfb-shadow), 0 6px 14px -8px var(--wfb-shadow);
  transform: translateY(20px) scale(0.95);
  opacity: 0;
  transition: transform 220ms ease, box-shadow 220ms ease, filter 220ms ease, opacity 280ms ease;
  font-family: "Segoe UI", "Helvetica Neue", sans-serif;
}

.wfb-whatsapp-button.wfb-ready {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.wfb-whatsapp-button:hover,
.wfb-whatsapp-button:focus-visible {
  transform: translateY(-2px) scale(1.01);
  box-shadow: 0 20px 36px -18px var(--wfb-shadow), 0 8px 18px -10px var(--wfb-shadow);
  filter: saturate(1.08);
}

.wfb-whatsapp-button:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

.wfb-left {
  left: 22px;
}

.wfb-right {
  right: 22px;
}

.wfb-icon {
  width: 34px;
  height: 34px;
  min-width: 34px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 30% 30%, var(--wfb-green-bright), var(--wfb-green));
  box-shadow: inset 0 -3px 8px rgba(0, 0, 0, 0.15);
  position: relative;
}

.wfb-icon::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: inherit;
  border: 2px solid rgba(82, 232, 138, 0.5);
  animation: wfb-ping 2.4s ease-out infinite;
}

.wfb-icon svg {
  width: 18px;
  height: 18px;
  display: block;
}

.wfb-label {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.1px;
  line-height: 1.2;
  white-space: nowrap;
}

@keyframes wfb-ping {
  0% {
    transform: scale(1);
    opacity: 0.75;
  }

  70% {
    transform: scale(1.32);
    opacity: 0;
  }

  100% {
    transform: scale(1.32);
    opacity: 0;
  }
}

@media (max-width: 768px) {
  .wfb-whatsapp-button {
    bottom: 16px;
    padding: 10px 13px 10px 10px;
    gap: 8px;
  }

  .wfb-left {
    left: 16px;
  }

  .wfb-right {
    right: 16px;
  }

  .wfb-label {
    font-size: 13px;
    max-width: 190px;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}