.center {
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

body{
	margin:0;
	color:#afafaf;
	background:#a2a2b2;
	font:600 16px/18px 'Open Sans',sans-serif;
}
*,:after,:before{box-sizing:border-box}
.clearfix:after,.clearfix:before{content:'';display:table}
.clearfix:after{clear:both;display:block}
a{color:inherit;text-decoration:none}

.login-wrap{
	width:100%;
	margin:auto;
	max-width:525px;
	min-height:790px;
	position:relative;
	background:url(https://raw.githubusercontent.com/khadkamhn/day-01-login-form/master/img/bg.jpg) no-repeat center;
	background-size: cover;
	box-shadow:0 12px 15px 0 rgba(0,0,0,.24),0 17px 50px 0 rgba(0,0,0,.19);
}
.login-html{
	width:100%;
	height:100%;
	position:absolute;
	padding:90px 70px 50px 70px;
	background:rgba(40,57,101,.9);
}

.login-html .sign-up-htm{
    padding-top: 5%;
	top:0;
	left:0;
	right:0;
	bottom:0;
	position:absolute;
	transform:rotateY(180deg);
	backface-visibility:hidden;
	transition:all .4s linear;
}

.login-html .sign-in-htm{
    padding-top: 25%;
	top:0;
	left:0;
	right:0;
	bottom:0;
	position:absolute;
	transform:rotateY(180deg);
	backface-visibility:hidden;
	transition:all .4s linear;
}

.login-html .sign-in,
.login-html .sign-up,
.login-form .group .check{
	display:none;
}
.login-html .tab,
.login-form .group .label,
.login-form .group .button{
	text-transform:uppercase;
}
.login-html .tab{
	font-size:22px;
	margin-right:15px;
	padding-bottom:5px;
	margin:0 15px 10px 0;
	display:inline-block;
	border-bottom:2px solid transparent;
}
.login-html .sign-in:checked + .tab,
.login-html .sign-up:checked + .tab{
	color:#fff;
	border-color:#1161ee;
}
.login-form{
	min-height:345px;
	position:relative;
	perspective:1000px;
	transform-style:preserve-3d;
}
.login-form .group{
	margin-bottom:15px;
}
.login-form .group .label,
.login-form .group .input,
.login-form .group .button{
	width:100%;
	color:#fff;
	display:block;
}
.login-form .group .input.{
	border:none;
	padding:15px 20px;
	border-radius:1px;
	background:rgba(255,255,255,.1);
}

#sign-in-user, select, textarea,
#sign-in-password, select, textarea,
#sign-up-user, select, textarea,
#sign-up-password, select, textarea,
#sign-up-repeat-password, select, textarea,
#sign-up-email, select, textarea{
    color: #cfcfcf;
}

#sign-in-user,
#sign-in-password,
#sign-up-user,
#sign-up-password,
#sign-up-repeat-password,
#sign-up-email{
	borderRadius: 3px;
	background: rgba(46,56,76,.8);
	max-height:3em;
	font-size: 21px;
}

#sign-up-unmatched-pass,
#sign-up-unmatched-repeat-pass{
    color: #dc3545;
    font-size: 13px;
    display: none;
}

#login-error{
	font-size: 15px;
	color: #ff3a3b;
}

.login-form .group .button{
	border:none;
	padding:15px 20px;
	border-radius:25px;
	background:rgba(255,255,255,.1);
}
.login-form .group input[data-type="password"]{
	text-security:circle;
	-webkit-text-security:circle;
}
.login-form .group .label{
	color:#aaa;
	font-size:12px;
}
.login-form .group .button{
	background:#1161ee;
}
.login-form .group label .icon{
	width:15px;
	height:15px;
	border-radius:2px;
	position:relative;
	display:inline-block;
	background:rgba(255,255,255,.1);
}
.login-form .group label .icon:before,
.login-form .group label .icon:after{
	content:'';
	width:10px;
	height:2px;
	background:#aaa;
	position:absolute;
	transition:all .2s ease-in-out 0s;
}
.login-form .group label .icon:before{
	left:3px;
	width:5px;
	bottom:6px;
	transform:scale(0) rotate(0);
}
.login-form .group label .icon:after{
	top:6px;
	right:0;
	transform:scale(0) rotate(0);
}
.login-form .group .check:checked + label{
	color:#fff;
}
.login-form .group .check:checked + label .icon{
	background:#1161ee;
}
.login-form .group .check:checked + label .icon:before{
	transform:scale(1) rotate(45deg);
}
.login-form .group .check:checked + label .icon:after{
	transform:scale(1) rotate(-45deg);
}
.login-html .sign-in:checked + .tab + .sign-up + .tab + .login-form .sign-in-htm{
	transform:rotate(0);
}
.login-html .sign-up:checked + .tab + .login-form .sign-up-htm{
	transform:rotate(0);
}

.hr{
	height:2px;
	margin:60px 0 50px 0;
	background:rgba(255,255,255,.2);
}
.foot-lnk{
	text-align:center;
}


  .forgot-wrap { margin-top: .5rem; text-align: right; }
  .forgot-link { font-size: .9rem; text-decoration: underline; cursor: pointer; }

  /* <dialog> ajustes */
  .forgot-dialog::backdrop { background: rgba(0,0,0,.5); }
  .forgot-dialog {
    border: none;
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    max-width: 420px;
    width: 92vw;
  }
  .forgot-dialog h3 { margin: 0 0 .75rem; }
  .dialog-actions { display:flex; gap:.5rem; justify-content:flex-end; margin-top:1rem; }
  .button.outline { background: transparent; border: 1px solid currentColor; }
  /* Reaproveita as tuas classes .group/.button já existentes */