/* Preloader Styles */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #111;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.fade-out {
  opacity: 0;
  visibility: hidden;
}

.loader {
  width: 80px;
  height: 80px;
  position: relative;
}

.loader:before, .loader:after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--primary-color);
  opacity: 0.6;
  animation: pulse 2s ease-in-out infinite;
}

.loader:after {
  animation-delay: 1s;
}

.loader-logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 50px;
  height: 50px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--text-dark);
  background: var(--primary-gradient);
  border-radius: 50%;
  animation: bounce 1s ease infinite alternate;
}

@keyframes pulse {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}

@keyframes bounce {
  from {
    transform: translate(-50%, -50%) scale(0.9);
  }
  to {
    transform: translate(-50%, -50%) scale(1.1);
  }
}