body {
      margin: 0;
      background: black;
      color: crimson;
      font-family: 'Lucida Console', monospace;
    }

    header {
      text-align: center;
      padding: 2rem;
      background: linear-gradient(to bottom, #330000, black);
      border-bottom: 2px solid crimson;
      position: relative;
    }

    header h1 {
      font-size: 3rem;
      text-shadow: 0 0 10px red, 0 0 20px crimson;
      animation: pulseText 1s infinite;
    }

    @keyframes pulseText {
      0%, 100% { text-shadow: 0 0 10px red, 0 0 20px crimson; }
      50% { text-shadow: 0 0 20px red, 0 0 40px crimson; }
    }

    .pentagram {
      width: 100px;
      height: 100px;
      background: url('https://upload.wikimedia.org/wikipedia/commons/thumb/2/2f/Pentagram.svg/1200px-Pentagram.svg.png') no-repeat center center;
      background-size: contain;
      margin: 0 auto;
      animation: spin 2s linear infinite;
    }

    @keyframes spin {
      from { transform: rotate(0deg); }
      to { transform: rotate(360deg); }
    }

    .gallery {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 1rem;
      padding: 2rem;
    }

    .gallery img {
      width: 100%;
      border: 2px solid crimson;
      box-shadow: 0 0 10px red;
      transition: transform 0.3s ease;
      opacity: 1;
    }

    .gallery img:hover {
      transform: scale(1.1);
    }

    @keyframes flash {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.3; }
    }

    footer {
      text-align: center;
      padding: 1rem;
      background: #1a0000;
      border-top: 2px solid crimson;
    }

    .animated-pentagram {
      width: 100px;
      height: 100px;
      margin: 1rem auto;
      background: url('https://media.giphy.com/media/3o7abKhOpu0NwenH3O/giphy.gif') no-repeat center center;
      background-size: contain;
    }