html, body {
  margin: 0;
  padding: 0;
  background: white;
  color: white;
  font-family: sans-serif;
  text-align: center;
}

#radarContainer {
  position: relative;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
}

#svgCompass {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.buttons {
  margin: 10px;
}

button, select {
  font-size: 26px;
  padding: 20px 30px;
  margin: 5px;
  background: grey;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

#clock {
  position: fixed;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 42px;
  color: red;
  background: rgba(255, 255, 255, 0.8);
  padding: 8px 20px;
  border-radius: 12px;
  font-weight: bold;
  z-index: 1000;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

.timestamp {
  font-size: 26px;
  margin-top: 5px;
  color: red;
}

.input-group {
  margin-bottom: 20px;
}

.frameBtn.active {
  background: red !important;
  color: white;
}