#loader {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: linear-gradient(135deg, #003366, #0055aa);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.8s ease, visibility 0.8s ease;
  }

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

  .loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    color: #fff;
    text-align: center;
  }

  .loader-text {
    font-weight: 500;
    font-size: 1.2rem;
    color: #fff;
    letter-spacing: 1px;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.5);
  }

  /* شعار مع موجات */
  .ripple-wrapper {
    position: relative;
    width: 120px;
    height: 120px;
  }

  .ripple-wrapper img {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: auto;
    z-index: 2;
  }

  .ripple-wrapper span {
    position: absolute;
    top: 50%; left: 50%;
    width: 100px; height: 100px;
    border: 3px solid rgba(255,255,255,0.6);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    animation: ripple 1.8s infinite;
    z-index: 1;
  }

  .ripple-wrapper span:nth-child(2) { animation-delay: 0.3s; }
  .ripple-wrapper span:nth-child(3) { animation-delay: 0.6s; }

  @keyframes ripple {
    0% { transform: translate(-50%, -50%) scale(0); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(1.8); opacity: 0; }
  }