body {
  background-color: black;
  color: #00ff00;
  font-family: 'VT323', monospace;
  margin: 0;
  padding: 20px;
  position: relative;
}

body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.15), rgba(0, 0, 0, 0.15) 1px, transparent 1px, transparent 2px);
  pointer-events: none;
  z-index: 1;
}

.retro-title {
  font-size: 3em;
  text-align: center;
  margin-bottom: 10px;
}

.retro-subtitle {
  font-size: 2em;
  text-align: center;
  margin-bottom: 20px;
}

.retro-content {
  max-width: 600px;
  margin: 0 auto;
  padding: 20px;
  border: 2px solid #00ff00;
  background-color: rgba(0, 0, 0, 0.7);
  font-size: 1.5em;
}

.retro-btn {
  background-color: #00ff00;
  color: black;
  border: none;
  padding: 10px 20px;
  font-family: 'VT323', monospace;
  font-size: 1.5em;
  cursor: pointer;
  transition: background-color 0.3s;
}

.retro-btn:hover {
  background-color: #00cc00;
}

.retro-input {
  background-color: black;
  color: #00ff00;
  border: 2px solid #00ff00;
  padding: 10px;
  font-family: 'VT323', monospace;
  font-size: 1.5em;
  width: 100%;
  max-width: 300px;
}

footer {
  text-align: center;
  margin-top: 20px;
  font-size: 0.8em;
}

#thank-you {
  font-size: 1.5em;
}