body {
  background-color: #0d0d0d;
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: white;
  min-height: 100vh;
  overflow-x: hidden;
}

h1 {
  font-size: 3rem;
  margin: 30px 0;
  background: linear-gradient(90deg, #9d00ff, #ff1ead);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.container {
  max-width: 400px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.photo-stack {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  border-radius: 20px;
  overflow: hidden;
}

.photo {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
  transition: opacity 0.4s ease;
}

.hidden {
  opacity: 0;
  pointer-events: none;
}

.controls {
  margin-top: 20px;
  display: flex;
  gap: 15px;
}

.controls button {
  background: #1a1a1a;
  color: white;
  border: 2px solid #9d00ff;
  padding: 10px 20px;
  font-size: 1.2rem;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.controls button:hover {
  background: #9d00ff;
  color: white;
}

.empty {
  color: #aaa;
  font-size: 1.2rem;
  text-align: center;
  margin-top: 40px;
}