body {
    font-family: 'Pretendard', sans-serif;
    background: #fafafa;
    color: #333;
    margin: 0;
    padding: 40px 0;
  }
  .container {
    width: 90%;
    max-width: 500px;
    margin: auto;
    background: #fff;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  }
  h1 {
    text-align: center;
    margin-bottom: 20px;
  }
  .desc {
    text-align: center;
    color: #777;
    margin-bottom: 30px;
  }
  form label {
    display: block;
    margin: 10px 0 5px;
  }
  form input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 8px;
  }
  button {
    width: 100%;
    padding: 12px;
    background: #1e88e5;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    margin-top: 15px;
    cursor: pointer;
  }
  button:hover {
    background: #1565c0;
  }
  .result {
    text-align: center;
    margin-top: 20px;
    font-weight: bold;
  }
  .admin table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
  }
  .admin th, .admin td {
    border-bottom: 1px solid #ddd;
    padding: 8px;
    text-align: center;
  }
  .total {
    text-align: right;
    margin-top: 10px;
    font-size: 18px;
    font-weight: bold;
  }