.login-btn {
    position: relative;
    padding: 10px 20px;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    letter-spacing: 0.3px;
    background: linear-gradient(135deg, #6C5CE7, #4834D4);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(108, 92, 231, 0.35);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
    overflow: hidden;
  }
 
  .login-btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -75%;
    width: 50%;
    height: 100%;
    background: rgba(255, 255, 255, 0.25);
    transform: skewX(-25deg);
    transition: left 0.5s ease;
  }
 
  .login-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(108, 92, 231, 0.5);
  }
 
  .login-btn:hover::before {
    left: 130%;
  }
 
  .login-btn:active {
    transform: translateY(0px) scale(0.97);
    box-shadow: 0 6px 14px rgba(108, 92, 231, 0.4);
  }
 
  .login-btn:focus-visible {
    outline: 3px solid #a29bfe;
    outline-offset: 3px;
  }