/* تنظیمات اولیه */
body {
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
    color: #ffffff;
    background: #000;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
  }
  
  .container {
    text-align: center;
    animation: fadeIn 2s ease-in-out;
  }
  
  h1 {
    font-size: 2.5rem;
    color: #ff3b3b;
    text-shadow: 0 0 15px #ff0000, 0 0 30px #ff3b3b;
  }
  
  /* انیمیشن */
  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: scale(0.8);
    }
    to {
      opacity: 1;
      transform: scale(1);
    }
  }
  
  /* بک‌گراند خفن */
  body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('background.jpg') no-repeat center center/cover;
    filter: brightness(0.3) blur(5px);
    z-index: -1;
  }
  
  /* ریسپانسیو */
  @media (max-width: 768px) {
    h1 {
      font-size: 1.8rem;
    }
  }