/* Dein bestehendes CSS hier ergänzt um die Puzzle-spezifischen Styles */
  * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
  }

  body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
      color: #ffffff;
      min-height: 100vh;
      overflow-x: hidden;
  }

  /* Navbar */
  .navbar {
      backdrop-filter: blur(20px);
      background: rgba(255, 255, 255, 0.05);
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      padding: 1rem 2rem;
      position: sticky;
      top: 0;
      z-index: 100;
      transition: all 0.3s ease;
  }

  .nav-container {
      max-width: 1200px;
      margin: 0 auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
  }

  .logo {
      font-size: 1.8rem;
      font-weight: 700;
      background: linear-gradient(45deg, #007AFF, #5856D6, #AF52DE);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
  }

  .nav-links {
      display: flex;
      list-style: none;
      gap: 2rem;
  }

  .nav-links a {
      color: rgba(255, 255, 255, 0.8);
      text-decoration: none;
      font-weight: 500;
      transition: all 0.3s ease;
      position: relative;
  }

  .nav-links a:hover {
      color: #007AFF;
      transform: translateY(-2px);
  }

  .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -5px;
      left: 0;
      width: 0;
      height: 2px;
      background: linear-gradient(45deg, #007AFF, #5856D6);
      transition: width 0.3s ease;
  }

  .nav-links a:hover::after {
      width: 100%;
  }

  /* Main Content */
  main {
      max-width: 600px;
      margin: 3rem auto 6rem;
      padding: 0 1rem;
      text-align: center;
  }

  main h1 {
      font-size: 2.5rem;
      margin-bottom: 2rem;
      font-weight: 700;
      background: linear-gradient(135deg, #ffffff 0%, #007AFF 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
  }

  #board {
      display: grid;
      grid-template-columns: repeat(4, 80px);
      grid-template-rows: repeat(4, 80px);
      gap: 10px;
      justify-content: center;
      margin-bottom: 2rem;
  }

  .tile {
      background: rgba(255, 255, 255, 0.05);
      backdrop-filter: blur(20px);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 15px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.8rem;
      font-weight: 700;
      color: #ffffff;
      cursor: pointer;
      user-select: none;
      transition: background 0.3s ease, transform 0.2s ease;
      box-shadow: 0 0 10px rgba(0, 122, 255, 0.4);
  }

  .tile:hover:not(.empty) {
      background: rgba(0, 122, 255, 0.2);
      transform: scale(1.05);
  }

  .empty {
      background: transparent;
      box-shadow: none;
      cursor: default;
  }

  #info {
      font-size: 1.2rem;
      color: rgba(255, 255, 255, 0.8);
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 1rem;
  }

  #info button {
      background: linear-gradient(135deg, #007AFF, #5856D6);
      border: none;
      color: white;
      font-size: 1.2rem;
      padding: 0.5rem 1.5rem;
      border-radius: 25px;
      cursor: pointer;
      transition: background 0.3s ease;
  }

  #info button:hover {
      background: linear-gradient(135deg, #5856D6, #AF52DE);
  }

  /* Footer */
  footer {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem 2rem;
    text-align: center;
    margin-top: 100px;
  }

  footer a {
    color: rgba(255, 255, 255, 0.7);
    margin: 0 1rem;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
  }

  footer a:hover {
    color: #007AFF;
  }

  /* Glowing particles effect */
  .particles {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      pointer-events: none;
      z-index: -2;
  }

  .particle {
      position: absolute;
      width: 4px;
      height: 4px;
      background: #007AFF;
      border-radius: 50%;
      animation: float 6s infinite linear;
      opacity: 0.6;
  }

  

  @keyframes float {
      0% {
          transform: translateY(100vh) rotate(0deg);
          opacity: 0;
      }
      10% {
          opacity: 0.6;
      }
      90% {
          opacity: 0.6;
      }
      100% {
          transform: translateY(-100px) rotate(360deg);
          opacity: 0;
      }
  }

  /* Hero Section */
        .hero {
            text-align: center;
            padding: 6rem 2rem 4rem;
            position: relative;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(0, 122, 255, 0.3) 0%, transparent 70%);
            border-radius: 50%;
            filter: blur(60px);
            z-index: -1;
        }

        .hero h1 {
            font-size: 4rem;
            font-weight: 800;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #ffffff 0%, #007AFF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: fadeInUp 1s ease-out;
        }

        .hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            margin: 0 auto;
            animation: fadeInUp 1s ease-out 0.2s both;
        }