body {
  margin: 0;
  height: 100vh;
  background: radial-gradient(circle, #06131c, #000);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  font-family: Arial, sans-serif;
  color: #00fff7;
}

button {
  padding: 14px 22px;
  border: none;
  border-radius: 30px;
  background: #00fff7;
  color: #000;
  font-size: 14px;
  margin-bottom: 20px;
}

.hidden {
  display: none;
}

.compass {
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 2px solid rgba(0,255,255,0.5);
  position: relative;
  box-shadow: 0 0 30px rgba(0,255,255,0.6);
}

.needle {
  position: absolute;
  width: 4px;
  height: 120px;
  background: linear-gradient(to top, red, #00fff7);
  top: 10px;
  left: 50%;
  transform-origin: bottom center;
  transform: rotate(0deg);
  border-radius: 2px;
}

.core {
  position: absolute;
  width: 14px;
  height: 14px;
  background: #00fff7;
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 20px #00fff7;
}

.degree {
  margin-top: 20px;
  font-size: 26px;
}

.label {
  margin-top: 6px;
  font-size: 12px;
  opacity: 0.6;
}