html, body {
  margin: 0;
  padding: 0;
  background: black;
  overflow: hidden;
  height: 100%;
  font-family: "Courier New", monospace;
  color: #00ff00;
}

/* Start Screen */
#start-screen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: black;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10;
}

#start-btn {
  font-family: "Courier New", monospace;
  font-size: 24px;
  background: black;
  color: #00ff00;
  border: 2px solid #00ff00;
  padding: 20px 40px;
  cursor: pointer;
  transition: all 0.3s ease;
}

#start-btn:hover {
  background: #00ff00;
  color: black;
}

/* Matrix Overlay */
#matrix-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: black;
  z-index: 9;
  display: none;
}

/* Benutzeroberfläche */
#ui {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: black;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 40px;
  z-index: 5;
}

#pixel-gif img {
  width: 128px;
  height: 128px;
  image-rendering: pixelated;
  margin-bottom: 20px;
}

#terminal {
  width: 80%;
  height: 60%;
  background: rgba(0, 0, 0, 0.85);
  border: 2px solid #00ff00;
  padding: 20px;
  overflow-y: auto;
}