body {
      margin: 0;
      height: 100vh;
      background: url('http://siaraofficial.pl/image/nathan-anderson-L95xDkSSuWw-unsplash.jpg') no-repeat center center fixed;
      background-size: cover;
      font-family: Arial, sans-serif;
      color: white;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      align-items: center;
      position: relative;
      overflow: hidden;
    }

    .stars {
      position: absolute;
      width: 100%;
      height: 100%;
      background: transparent;
      box-shadow:
        10px 10px white,
        50px 80px white,
        90px 120px #aaa,
        200px 150px white,
        400px 300px #888,
        600px 200px white,
        800px 400px #aaa,
        1000px 100px white,
        1200px 250px #bbb,
        300px 100px #fff,
        150px 450px #999,
        750px 550px white,
        500px 600px #ddd,
        350px 300px #aaa,
        900px 200px white,
        1100px 500px #ccc,
        1300px 150px #eee;
      animation: twinkle 10s infinite ease-in-out;
      z-index: 0;
    }

    @keyframes twinkle {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.4; }
    }

    header {
      width: 100%;
      text-align: center;
      padding: 20px 0;
      position: relative;
      z-index: 1;
    }

    .glow {
      font-size: clamp(2rem, 6vw, 4rem);
      text-shadow: 0 0 10px #00f, 0 0 20px #00f, 0 0 30px #00f, 0 0 40px #00f;
    }

    main {
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      z-index: 1;
      width: 100%;
    }

    .buttons {
      margin-top: 20px;
      display: flex;
      gap: 20px;
    }

    .buttons a {
      background-color: #222;
      border: 1px solid #00f;
      padding: 10px 20px;
      color: white;
      text-decoration: none;
      border-radius: 10px;
      transition: background 0.3s, box-shadow 0.3s;
    }

    .buttons a:hover {
      background-color: #00f;
      color: black;
      box-shadow: 0 0 10px #00f;
    }

    footer {
      width: 100%;
      text-align: center;
      padding: 15px 0;
      font-size: 0.9rem;
      background: rgba(0, 0, 0, 0.3);
      position: relative;
      z-index: 1;
    }

    /* Responsywność dla telefonów */
    @media (max-width: 600px) {
      .buttons {
        flex-direction: column;
        gap: 12px;
        width: 100%;
        align-items: center;
      }

      .buttons a {
        width: 80%;
        text-align: center;
        font-size: 1rem;
        padding: 14px;
      }

      footer {
        font-size: 0.8rem;
        padding: 10px 0;
      }
    }