.whatsapp-button {
  position: fixed;
  bottom: 90px;
  background: #25d366;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  z-index: 9999;
  transition: transform 0.3s ease;
}
.whatsapp-button:hover { transform: scale(1.1); }
.whatsapp-button img { width: 34px; height: 34px; }

.chat-window {
  position: fixed;
  bottom: 90px;
  width: 300px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  overflow: hidden;
  display: none;
  animation: fadeInUp 0.3s ease;
  z-index: 9999;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.chat-header {
  color: #fff;
  padding: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.chat-header img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid #fff;
}
.chat-header .info { display: flex; flex-direction: column; }
.chat-header .info .name { font-weight: bold; }
.chat-header .info .time { font-size: 12px; opacity: 0.9; }

.chat-body {
  padding: 15px;
  font-size: 14px;
  color: #333;
  background: url("https://static.elfsight.com/apps/all-in-one-chat/patterns/background-whatsapp.jpg");
  background-size: cover;
  background-repeat: repeat;
  min-height: 120px;
  display: flex;
  align-items: flex-start;
}
.chat-message {
  background: #fff;
  padding: 10px 14px;
  border-radius: 8px;
  max-width: 80%;
  box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}
.chat-footer {
  padding: 12px;
  text-align: right;
  border-top: 1px solid #eee;
}
.chat-footer a {
  background: #25d366;
  color: #fff;
  padding: 8px 14px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 14px;
  transition: background 0.3s;
}
.chat-footer a:hover { background: #1eb153; }