static/css/styles_animation.css

      body {
        opacity: 0;
        transition: opacity 0.8s ease;
      }

      body.loaded {
        opacity: 1;
      }

      .animated-block {
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.8s ease;
      }

      .animated-block.visible {
        opacity: 1;
        transform: translateY(0);
      }