body {
      font-family: system-ui, sans-serif;
      margin: 0;
      background: #f4f7fb;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 100vh;
    }
    .card {
      background: white;
      padding: 25px;
      border-radius: 12px;
      box-shadow: 0 4px 15px rgba(0,0,0,0.1);
      width: 100%;
      max-width: 420px;
    }
    h2 {
      text-align: center;
      margin-bottom: 20px;
      color:  #0ea5a3
    }
    label {
      font-size: 14px;
      font-weight: 600;
      margin-top: 10px;
      display: block;
      color: #444;
    }
    input, select, button {
      margin-top: 6px;
      margin-bottom: 15px;
      padding: 10px;
      width: 100%;
      border: 1px solid #ccc;
      border-radius: 8px;
      font-size: 15px;
    }
    input:focus, select:focus {
      border-color: #007BFF;
      outline: none;
      box-shadow: 0 0 6px rgba(0,123,255,0.2);
    }
    button {
      background: #007BFF;
      color: white;
      border: none;
      cursor: pointer;
      font-size: 16px;
      font-weight: bold;
      transition: 0.3s;
    }
    button:hover {
      background: #0056b3;
    }
    #status {
      margin-top: 10px;
      text-align: center;
      font-weight: bold;
    }
    .success { color: green; }
    .error { color: red; }