/* Preloader Animation */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #0055aa, #00c8ff);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 1s ease, visibility 1s ease;
  }
  
  .preloader-hidden {
    opacity: 0;
    visibility: hidden;
  }
  
  .preloader-content {
    text-align: center;
  }
  
  .preloader-spinner {
    width: 60px;
    height: 60px;
    border: 5px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spinner-rotate 1.5s infinite linear;
    margin: 0 auto 20px;
  }
  
  .preloader-text {
    color: white;
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 2px;
  }
  
  .dot-animation {
    opacity: 0;
    animation: dot-fade 1.5s infinite;
  }
  
  .dot-animation:nth-child(2) {
    animation-delay: 0.5s;
  }
  
  .dot-animation:nth-child(3) {
    animation-delay: 1s;
  }
  
  @keyframes dot-fade {
    0%,
    100% {
      opacity: 0;
    }
    50% {
      opacity: 1;
    }
  }
  
  @keyframes spinner-rotate {
    to {
      transform: rotate(360deg);
    }
  }