div.dark {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #0a0a0f;
  color: #00f0ff;
  /*overflow: hidden;*/
}

.dark .card-body {
  position: relative;
  z-index: 2;
  background-color: rgba(10, 10, 15, 0.85);
  margin: 1%;
  border: 1px solid #00f0ff;
  border-radius: 12px;
  box-shadow: 0 0 20px #00f0ff;
}

.dark .card-title.header {
  font-size: 2rem;
  text-shadow: 0 0 8px #00f0ff;
}

.card-text {
  font-size: 1rem;
  line-height: 1.6;
}

.lang_text {
  color: #ffae00;
  font-weight: bold;
}

a.btn {
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  text-decoration: none;
  transition: background 0.3s ease;
}

.dark a.btn-light {
  background-color: #00f0ff;
  color: #0a0a0f;
}

.dark a.btn-dark {
  background-color: #9c27b0;
  color: #0a0a0f;
}

.background-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -100;
  overflow: hidden;
  pointer-events: none;
}

.dot {
  position: absolute;
  background-color: cyan;
  border-radius: 50%;
  opacity: 0.6;
  animation: swim 10s linear infinite;
}

@keyframes swim {
  0% {
    transform: translateX(-100vw) scale(0.5);
    opacity: 0.3;
  }
  50% {
    transform: translateX(50vw) scale(1.2);
    opacity: 0.8;
  }
  100% {
    transform: translateX(100vw) scale(0.3);
    opacity: 0.2;
  }
}

.text-light {
	color:rgba(var(--bs-light-rgb),var(--bs-text-opacity))!important ;
}

.text-dark {
	color: black;
}

.dark .container.main-container {
    background: mediumturquoise;
}