/* Reset and base font */
* {
  margin: 0;
  padding: 0;
  font-family: 'Poppins', sans-serif;
  box-sizing: border-box;
}

body {
  background: #000;
  color: #0ff;
  
}

.container {
  width: 90%;
  max-width: 400px;
  padding: 25px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #000;
  border-radius: 15px;
  border: 2px solid #0ff;

  /* Stronger 3D glow effect outside */

   box-shadow:
       0 6px 15px rgba(0, 255, 255, 0.7),
       0 0 25px rgba(0, 255, 255, 0.5),
       6px 6px 25px rgba(0, 0, 0, 0.8);
    
    transition:  box-shadow 0.3s;
  &:hover{
    
     box-shadow:
        0 12px 30px rgba(0, 255, 255, 0.9),
        0 0 40px rgba(0, 255, 255, 0.6),
        12px 12px 40px rgba(0, 0, 0, 0.85);

  }
}


/* Header text */
.container p {
  font-weight: 600;
  font-size: 18px;
  margin-bottom: 12px;
  text-align: center;
  color: #0ff;
  text-shadow: 0 0 5px #0ff;
}

/* Input styling */
.container input {
  width: 100%;
  height: 50px;
  border: 2px solid #0ff;
  background: #000;
  color: #0ff;
  outline: none;
  padding: 10px;
  margin: 10px 0 20px;
  border-radius: 8px;
  transition: box-shadow 0.3s;
}
.container input::placeholder{
    color: #0ff
}

.container input:focus {
  box-shadow: 0 0 10px #0ff, 0 0 20px #0ff inset;
}


.container button {
  width: 100%;
  height: 50px;
  background: #0ff;
  color: #000;
  border: none;
  outline: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  text-transform: uppercase;
  transition: background 0.3s, box-shadow 0.3s;
  box-shadow: 0 0 10px #0ff, 0 0 20px #0ff inset;
}

.container button:hover {
  background: #00f7ff;
  box-shadow: 0 0 20px #00f7ff, 0 0 40px #00f7ff inset;
}

/* QR Image Box */
#imgBox {
  width: 200px;
  border-radius: 10px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 1s ease;
  margin: 0 auto;
}

#imgBox.show-img {
  max-height: 300px;
  margin: 20px auto;
  border: 2px solid #0ff;
  box-shadow: 0 0 20px #0ff;
  padding: 10px;
  background: #000;
}

#imgBox img {
  width: 100%;
  display: block;
  filter: drop-shadow(0 0 10px #0ff);
}

/* Error animation */
.error {
  border: 2px solid #f0f !important;
  animation: shake 0.1s linear 10;
  color: #f0f !important;
}

.error::placeholder {
  color: #f0f !important;
}


/* Shake keyframes */
@keyframes shake {
  0% { transform: translateX(0); }
  25% { transform: translateX(-3px); }
  50% { transform: translateX(0); }
  75% { transform: translateX(3px); }
  100% { transform: translateX(0); }
}