body {
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 100vh;
      background: #0a3d2e;
      font-family: Arial, sans-serif;
  }

  .login-card {
      background: #ffffff;
      padding: 32px;
      border-radius: 16px;
      width: 100%;
      max-width: 360px;
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
  }

  .login-card h1 {
      margin: 0 0 24px 0;
      font-size: 24px;
      color: #0a3d2e;
      text-align: center;
  }

  .login-card label {
      display: block;
      margin-bottom: 8px;
      font-weight: 600;
      color: #0a3d2e;
  }

  .login-card input[type="text"],
  .login-card input[type="password"] {
      width: 100%;
      padding: 10px 12px;
      border: 1px solid #d1d5db;
      border-radius: 8px;
      font-size: 14px;
      margin-bottom: 16px;
  }

  .login-card button {
      width: 100%;
      padding: 12px;
      border: none;
      border-radius: 8px;
      background: #0a3d2e;
      color: #ffffff;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
  }

  .login-card button:hover {
      background: #0d5242;
  }

  .login-card .error {
      background: #fee2e2;
      color: #b91c1c;
      padding: 10px 12px;
      border-radius: 8px;
      margin-bottom: 16px;
      font-size: 14px;
  }

  .login-card .hint {
      margin-top: 16px;
      font-size: 13px;
      color: #4b5563;
      text-align: center;
      line-height: 1.4;
  }