/* Reset */
* { margin:0; padding:0; box-sizing:border-box; }

body {
  font-family: Arial, sans-serif;
  background-color: #000;
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 50px;
  min-height: 100vh;
  overflow: hidden;
  text-align: center;
}

/* Animated circles */
.container {
  position: fixed;
  top: 150px;
  left: 0;
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  perspective: 1000px;
  z-index: 0;
  pointer-events: none;
  opacity: 0.3;
}

.circle {
  position: relative;
  background: transparent;
  width: calc(var(--i) * 2.5vmin);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 3px solid rgb(0,255,13);
  transform-style: preserve-3d;
  transform: rotateX(70deg) translateZ(50px);
  animation: animate 3s ease-in-out calc(var(--i) * 0.08s) infinite;
  box-shadow: 0 0 15px rgb(124,124,124), inset 0 0 15px rgb(124,124,124);
}

@keyframes animate {
  0%,100% { transform: rotateX(70deg) translateZ(50px) translateY(0); filter: hue-rotate(0deg);}
  50% { transform: rotateX(70deg) translateZ(50px) translateY(-50px); filter: hue-rotate(360deg);}
}

/* Drag box */
.drop-box {
  position: relative;
  z-index: 1;
  width: 80%;
  max-width: 500px;
  min-height: 150px;
  border: 2px dashed #0f0;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-color: rgba(0,0,0,0.7);
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 20px;
}

.drop-box:hover { background-color: rgba(0,255,0,0.1); }

/* Neon button */
.neon-button {
  position: relative;
  z-index: 1;
  background: #000;
  color: #00f;
  border: 2px solid #00f;
  padding: 12px 30px;
  font-size: 1.2rem;
  font-weight: bold;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: 0 0 5px #00f,0 0 10px #00f,0 0 20px #00f;
  margin-bottom: 20px;
  transition: all 0.2s;
}

.neon-button:hover {
  color: #0ff;
  border-color: #0ff;
  box-shadow: 0 0 10px #0ff,0 0 20px #0ff,0 0 40px #0ff;
  transform: scale(1.05);
}

/* Neon red progress bar */
.progress-container {
  width: 80%;
  max-width: 500px;
  height: 20px;
  background-color: rgba(255,0,0,0.1);
  border: 2px solid #f00;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background-color: #f00;
  box-shadow: 0 0 5px #f00,0 0 10px #f00,0 0 20px #f00;
  transition: width 0.2s ease;
}

/* Image previews */
#preview img { width: 80px; margin: 5px; }