.slider-container {
  max-width: 600px;
  margin: 40px auto;
  background: #fff;
  padding: 20px;
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
  text-align: center;
  position: relative;
}

.slider-card {
  display: none;
  animation: fade 0.5s ease-in-out;
}

.slider-card.active {
  display: block;
}

.slider-card .avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  margin-bottom: 15px;
}

.subtitle {
  color: #777;
  display: block;
  margin-bottom: 10px;
}

.slider-controls {
  margin-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.slider-controls button {
  background: #ffc107;
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 18px;
  cursor: pointer;
}

#counter {
  font-size: 14px;
  color: #555;
}

@keyframes fade {
  from {opacity: 0;}
  to {opacity: 1;}
}