html, body {
  margin: 0;
  padding: 0;
  background-color: black;
  height: 100%;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  font-family: sans-serif;
  color: white;
}

.header {
  text-align: center;
  margin-top: 20px;
}

.header h1 {
  margin: 0;
  font-size: 30px;
  color: limegreen;
}

.header p {
  margin: 0;
  font-size: 20px;
  color: limegreen;
}

.top-controls,
.bottom-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 15px;
  margin: 10px 0;
  transform: scale(0.8);
}

.display {
  display: flex;
  gap: 20px;
  justify-content: center;
  align-items: center;
  margin: 20px 0;
  transform: scale(0.5);
}

.digit {
  width: 120px;
  height: 240px;
  flex-shrink: 0;
}

.control-button {
  padding: 10px 20px;
  font-size: 18px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

.connect-btn {
  background-color: yellow;
  color: black;
}

.connect-btn.connected {
  background-color: #00ff00;
}

.pause-btn {
  background-color: #333;
  color: white;
}

.pause-btn.paused {
  background-color: red;
}

.download-btn {
  background-color: cyan;
  color: black;
}

label {
  font-size: 20px;
}

input {
  padding: 5px;
  font-size: 24px;
  width: 80px;
  text-align: center;
}

svg .seg {
  fill: #111;
  transition: fill 0.2s;
}

svg .on {
  fill: white;
  filter: drop-shadow(0 0 8px white);
}

svg .on-yellow {
  fill: yellow;
  filter: drop-shadow(0 0 8px yellow);
}

svg .on-orange {
  fill: orange;
  filter: drop-shadow(0 0 8px orange);
}

.led {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #400;
  box-shadow: 0 0 10px #000;
}

.led.on {
  background: red;
  box-shadow: 0 0 20px red; 
}

.copyright {
  font-size: 20px;
  margin-top: 20px;
  text-align: center;
}

.univ-info {
  text-align: center;
  font-size: 20px;
  color: limegreen;
  margin-top: 1px;
  max-width: 90%;
}
