.inside {
    padding: 20px;
    max-width: 900px;
    margin: auto;
  }
  .inside h2 {
    margin-top: 20px;
    font-size: 28px;
    color: #001e4d;
    text-align: center;
  }
  .blinking-text {
    text-align: center;
    font-weight: bold;
    color: red;
    animation: blink 1.5s linear infinite;
  }
  @keyframes blink {
    50% { opacity: 0; }
  }
  .material-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 30px;
  }
  .material-item {
    background-color: #f1f1f1;
    padding: 15px 20px;
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
  }
  .material-item span {
    font-weight: bold;
    color: #001e4d;
  }
  .material-item button {
    background-color: #001e4d;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    transition: background-color 0.3s;
  }
  .material-item button:hover {
    background-color: #003e80;
  }
  .back-btn {
    display: inline-block;
    margin-bottom: 20px;
    border-radius: 20px;
    color: white;
    background-color: #001e4d;
    padding: 10px 20px;
    text-decoration: none;
  }
  @media (max-width: 600px) {
    .material-item {
      flex-direction: column;
      align-items: flex-start;
    }
    .material-item button {
      margin-top: 10px;
    }
  }