body {
      margin: 0;
      padding: 0;
      background: #061d34;
      font-family: Arial, sans-serif;
      color: #cfe9f5;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    /* ---------- HEADER ---------- */
    .header {
      padding: 15px 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #082945;
      flex-wrap: wrap;
    }

    .header .btn {
      margin-left: 15px;
      color: #00c9d7;
      text-decoration: none;
      font-weight: bold;
      font-size: 0.95rem;
    }

    .header .btn:hover {
      text-decoration: underline;
    }

    /* ---------- MAIN CONTAINER ---------- */
    main.container {
      flex: 1;
      display: flex;
      justify-content: center;
      align-items: center;
      padding: 30px 15px;
    }

    .content {
      display: flex;
      align-items: center;
      gap: 50px;
      flex-wrap: wrap;
      max-width: 1100px;
      width: 100%;
      justify-content: center;
    }

    /* ---------- LEFT IMAGE ---------- */
    .left img {
      width: 450px;
      max-width: 100%;
      border-radius: 16px;
      box-shadow: 0px 6px 18px rgba(0,0,0,0.5);
      animation: pan 20s infinite linear alternate;
    }

    @keyframes pan {
      0% { transform: translateX(0); }
      50% { transform: translateX(-10px) translateY(-8px); }
      100% { transform: translateX(10px) translateY(8px); }
    }

    /* ---------- RIGHT CONTENT ---------- */
    .right {
      max-width: 420px;
      width: 100%;
      text-align: center;
    }

    .right h1 {
      font-size: 2rem;
      margin-bottom: 30px;
      font-weight: bold;
      color: #b8e0f7;
    }

    .login-buttons {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 15px;
      margin-bottom: 30px;
    }

    .login-buttons a {
      background: transparent;
      border: 2px solid #00a9c9;
      color: #00c9d7;
      font-weight: bold;
      text-decoration: none;
      padding: 12px 20px;
      border-radius: 50px;
      transition: all 0.3s ease;
      text-align: center;
      font-size: 0.95rem;
    }

    .login-buttons a:hover {
      background: #00c9d7;
      color: #061d34;
    }

    .social-icons {
      display: flex;
      justify-content: center;
      gap: 25px;
      font-size: 1.8rem;
    }

    .social-icons a {
      color: #00c9d7;
      text-decoration: none;
      transition: 0.3s;
    }

    .social-icons a:hover {
      color: #fff;
    }

    /* ---------- FOOTER ---------- */
    .footer {
      text-align: center;
      padding: 15px;
      background: #082945;
      color: #cfe9f5;
      font-size: 0.9rem;
    }

    /* ---------- RESPONSIVE BREAKPOINTS ---------- */
    @media (max-width: 992px) {
      .content {
        gap: 30px;
      }

      .right h1 {
        font-size: 1.8rem;
      }

      .left img {
        width: 380px;
      }
    }

    @media (max-width: 768px) {
      .header {
        flex-direction: column;
        text-align: center;
      }

      .content {
        flex-direction: column;
        gap: 25px;
      }

      .left img {
        width: 320px;
      }

      .right h1 {
        font-size: 1.6rem;
      }
    }

    @media (max-width: 480px) {
      .right h1 {
        font-size: 1.4rem;
      }

      .login-buttons {
        grid-template-columns: 1fr;
      }

      .login-buttons a {
        font-size: 0.9rem;
        padding: 10px 15px;
      }

      .social-icons {
        font-size: 1.5rem;
        gap: 20px;
      }
    }


    /* ===  pop window css =======*/

     /* Modal background */
  .modal {
    display: none;
    position: fixed;
    z-index: 999;
    left: 0; top: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.6);
    justify-content: center;
    align-items: center;
  }

  /* Modal box */
  .modal-content {
    background: #082945;
    color: #cfe9f5;
    padding: 25px;
    border-radius: 12px;
    width: 350px;
    max-width: 90%;
    text-align: center;
    box-shadow: 0 6px 20px rgba(0,0,0,0.5);
  }

  .modal-content h2 {
    margin-bottom: 20px;
    font-size: 1.5rem;
    color: #00c9d7;
  }

  .modal-content input {
    width: 94%;
    margin: 8px 0px;
    padding: 12px 10px;
    border: none;
    border-radius: 6px;
    outline: none;
  }

  .modal-content button {
    width: 100%;
    padding: 12px;
    margin-top: 12px;
    background: #00c9d7;
    border: none;
    border-radius: 6px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
  }

  .modal-content button:hover {
    background: #00a9c9;
  }

  .close {
    float: right;
    font-size: 22px;
    cursor: pointer;
    color: #fff;
  }