#particles-js {
  position: fixed;
  width: 100%;
  height: 100%;
  background: #000;
  z-index: -2;
}

.logo img {
  position: fixed;
  top: 20px; left: 20px;
  width: 120px;
  opacity: 0.4;
  z-index: -1;
}

.tabs {
  display: flex;
  justify-content: center;
  gap: 20px;
  padding: 20px;
}
.tabs button {
  background: linear-gradient(45deg, #06b6d4, #3b82f6);
  border: none;
  border-radius: 25px;
  padding: 10px 20px;
  color: #fff;
  cursor: pointer;
  transition: 0.3s;
}
.tabs button:hover {
  box-shadow: 0 0 15px #06b6d4;
}

.tab-content {
  display: none;
  text-align: center;
  padding: 40px;
  animation: fadeIn 0.5s;
}
.tab-content.active {
  display: block;
}

form input {
  padding: 10px;
  border-radius: 20px;
  border: none;
  margin-right: 10px;
}
form button {
  background: linear-gradient(45deg, #06d4a6, #06b6d4);
  border: none;
  padding: 10px 20px;
  border-radius: 20px;
  cursor: pointer;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}