.contact-bubble-button {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #28a745;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,.25);
  z-index: 99998;
}

.contact-bubble-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 99999;
}

.contact-bubble-content {
  background: #fff;
  width: 90%;
  max-width: 420px;
  margin: 6% auto;
  padding: 24px;
  border-radius: 12px;
  position: relative;
}

.contact-bubble-close {
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 28px;
  cursor: pointer;
}

.contact-bubble-content input,
.contact-bubble-content textarea,
.contact-bubble-content button {
  width: 100%;
  box-sizing: border-box;
  margin-top: 10px;
  padding: 12px;
  font-size: 16px;
}

.contact-bubble-content textarea {
  min-height: 120px;
  resize: vertical;
}

.contact-bubble-content button {
  background: #28a745;
  color: #fff;
  border: 0;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
}