* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      min-height: 100vh;
      display: flex;
      justify-content: center;
      align-items: center;
      padding: 20px;
    }

    .login-container {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-radius: 15px;
      padding: 40px;
      box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      width: 100%;
      max-width: 400px;
      text-align: center;
    }

    .login-container h1 {
      color: #333;
      margin-bottom: 30px;
      font-size: 2rem;
      font-weight: 600;
    }

    .form-group {
      margin-bottom: 20px;
      text-align: left;
    }

    .form-group label {
      display: block;
      margin-bottom: 8px;
      color: #555;
      font-weight: 500;
      font-size: 14px;
    }

    .form-group input {
      width: 100%;
      padding: 12px 16px;
      border: 2px solid #e1e1e1;
      border-radius: 8px;
      font-size: 16px;
      transition: all 0.3s ease;
      background-color: #fff;
    }

    .form-group input:focus {
      outline: none;
      border-color: #667eea;
      box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    }

    .form-group input::placeholder {
      color: #999;
    }

    .remember-forgot {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 25px;
      font-size: 14px;
    }

    .remember-forgot label {
      display: flex;
      align-items: center;
      color: #666;
      cursor: pointer;
    }

    .remember-forgot input[type="checkbox"] {
      margin-right: 8px;
      width: auto;
    }

    .remember-forgot a {
      color: #667eea;
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .remember-forgot a:hover {
      color: #764ba2;
      text-decoration: underline;
    }

    .login-btn {
      width: 100%;
      background: linear-gradient(135deg, #667eea, #764ba2);
      color: white;
      border: none;
      padding: 14px;
      border-radius: 8px;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s ease;
      margin-bottom: 20px;
    }

    .login-btn:hover {
      background: linear-gradient(135deg, #764ba2, #667eea);
      transform: translateY(-2px);
      box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
    }

    .login-btn:active {
      transform: translateY(0);
    }

    .error-message {
      color: #e74c3c;
      font-size: 14px;
      margin-top: 10px;
      display: none;
    }

    .success-message {
      color: #27ae60;
      font-size: 14px;
      margin-top: 10px;
      display: none;
    }

    /* Responsive design */
    @media (max-width: 480px) {
      .login-container {
        padding: 30px 20px;
      }
      
      .login-container h1 {
        font-size: 1.5rem;
      }
    }

    /* Loading animation */
    .loading {
      display: none;
      width: 20px;
      height: 20px;
      border: 2px solid #f3f3f3;
      border-top: 2px solid #667eea;
      border-radius: 50%;
      animation: spin 1s linear infinite;
      margin: 0 auto;
    }

    @keyframes spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }