.order-details {
    max-width: 700px;
    margin: 40px auto;
    background: #fff;
    padding: 25px 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  }

  .order-details h1 {
    font-weight: 700;
    font-size: 28px;
    color: #333;
    margin-bottom: 15px;
  }

  .order-meta {
    color: #555;
    font-size: 16px;
    margin-bottom: 30px;
  }

  .order-meta span {
    font-weight: 600;
  }

  .order-items {
    list-style: none;
    padding: 0;
    margin-bottom: 30px;
  }

  .order-items li {
    background: #f7f9fc;
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 12px;
    font-size: 16px;
    color: #444;
    display: flex;
    justify-content: space-between;
  }

  .order-items li:last-child {
    margin-bottom: 0;
  }

  .order-items li span {
    font-weight: 600;
    color: #2a9d8f;
  }

  .btn-back {
    display: inline-block;
    background-color: #2a9d8f;
    color: #fff;
    text-decoration: none;
    padding: 12px 25px;
    border-radius: 8px;
    font-weight: 600;
    box-shadow: 0 4px 8px rgba(42, 157, 143, 0.3);
    transition: background-color 0.3s ease;
  }

  .btn-back:hover {
    background-color: #237d6a;
  }