body, html {
  height: 100%;
  margin: 0;
  padding: 0;
}

.background-image {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('/images/background.png');
  background-size: cover;
  background-position: center;
  opacity: 0.03;
  z-index: -1;
}

.content {
  position: relative;
  z-index: 1;
}

.maillink {
  unicode-bidi: bidi-override; direction: rtl;
}

.green-text {
  color: green;
}

.red-text {
  color: red;
}

@keyframes pulseFill {
  0%, 33% { fill: green; }
  34%, 66% { fill: yellow; }
  67%, 100% { fill: red; }
}

.animated-circle {
  animation: pulseFill 9s infinite;
}