{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}


.header-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 20px;
  position: relative;
}

.header-bar h1 {
  font-size: 40px;
  text-align: center;
}

.hamburger-icon {
  width: 30px;
  cursor: pointer;
  padding: 10px 0;
}

.hamburger-icon div {
  width: 30px;
  height: 4px;
  background-color: #333;
  margin: 5px 0;
  transition: 0.4s;
}

.menu {
  display: none;
  flex-direction: column;
  background-color: #f4f4f4;
  padding: 10px;
  border: 1px solid #ccc;
  margin-bottom: 20px;
  width: fit-content;
}

.menu a {
  text-decoration: none;
  color: #000;
  margin: 5px 0;
}

.menu a:hover {
  color: #007BFF;
}

.menu.active {
  display: flex;
}

.main-content {
  max-width: 700px;
  margin: 0 auto;
  padding: 30px 10px;
  text-align: center;
}

.main-content h2 {
  font-size: 24px;
  margin-bottom: 10px;
}

.main-content p {
  margin-bottom: 20px;
  line-height: 1.5;
}

.main-content ul {
  text-align: left;
  margin: 0 auto;
  max-width: 600px;
  padding-left: 20px;
}

.main-content li {
  margin-bottom: 15px;
}

.main-content b {
  display: block;
  margin-bottom: 5px;
}
    
    
  body {
    font-family: sans-serif;
    margin: 2rem;
  }
  h1 {
    font-size: 1.4rem;
  }
  .file-btn,
  button {
    margin: 0.5rem 0;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    background: #0073e6;
    color: #fff;
    display: inline-block;
    text-align: center;
  }

  .file-btn:hover,
  button:hover {
    background: #005bb5;
  }

  button:hover {
    background: #005bb5;
  }
  input[type="file"] {
    margin-top: 1rem;
  }
  pre {
    margin-top: 1rem;
    padding: 1rem;
    background: #f0f0f0;
    border-radius: 4px;
    max-height: 200px;
    overflow: auto;
  }

  .data-action {
  display: flex;        /* Arrange children in a row */
  align-items: center;  /* Vertically center button and message */
  margin: 0.5rem 0;     /* Add space between lines */
}

.data-action span {
  margin-left: 1rem;    /* Space between button/input and message */
  color: #0073e6;
  font-weight: bold;
}