body {
      margin: 0;
      height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      background: #0d0d0d;
      color: #fff;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      position: relative;
    }

    canvas {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: 0;
    }

    .welcome-card {
      background: rgba(0, 0, 0, 0.85);
      padding: 40px;
      border-radius: 20px;
      text-align: center;
      z-index: 1;
      position: relative;
    }

    .zkgr-btn {
      background: #ff6600;
      color: #fff;
      font-weight: bold;
      border: none;
      padding: 12px 30px;
      border-radius: 30px;
      transition: all 0.3s ease-in-out;
    }

    .zkgr-btn:hover {
      background: #ff8533;
      transform: scale(1.05);
    }

    .footer {
      margin-top: 40px;
      font-size: 0.9rem;
      color: #bbb;
    }
    .author{
        color:#ff6600,
    }

    .logo {
      position: absolute;
      top: 20px;
      right: 30px;
      width: 60px;
      z-index: 2;
    }