:root{
--form-height:500px;
--form-width: 900px;
/*  Sea Green */
--left-color: #9fdeaf;
/*  Light Blue  */
--right-color: #96dbe2;
}

body, html{
width: 100%;
height: 100%;
margin: 0;
font-family: 'Helvetica Neue', sans-serif;
letter-spacing: 0.5px;
background: url(../images/register.jpg) no-repeat center center fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}

.container{
width: var(--form-width);
height: var(--form-height);
position: relative;
margin: auto;
box-shadow: 2px 10px 40px rgba(22,20,19,0.4);
border-radius: 10px;
margin-top: 50px;
}
/* 
----------------------
  Overlay
----------------------
*/
.overlay{
width: 100%; 
height: 100%;
position: absolute;
z-index: 100;
background-image: linear-gradient(to right, var(--left-color), var(--right-color));
border-radius: 10px;
color: white;
clip: rect(0, 385px, var(--form-height), 0);
}

.open-sign-up{
animation: slideleft 1s linear forwards;
}

.open-sign-in{
animation: slideright 1s linear forwards;
}

.overlay .sign-in, .overlay .sign-up{
/*  Width is 385px - padding  */
--padding: 50px;
width: calc(385px - var(--padding) * 2);
height: 100%;
display: flex;
justify-content: center;
flex-direction: column;
align-items: center;
padding: 0px var(--padding);
text-align: center;
}

.overlay .sign-in{
float: left;
}

.overlay-text-left-animation{
animation: text-slide-in-left 1s linear;
}
.overlay-text-left-animation-out{
animation: text-slide-out-left 1s linear;
}

.overlay .sign-up{
float:right;
}

.overlay-text-right-animation{
animation: text-slide-in-right 1s linear;
}

.overlay-text-right-animation-out{
animation: text-slide-out-right 1s linear;
}


.overlay h1{
margin: 0px 5px;
font-size: 2.1rem;
}

.overlay p{
margin: 20px 0px 30px;
font-weight: 200;
}
/* 
------------------------
  Buttons
------------------------
*/
.switch-button{
cursor: pointer;
display:none;
margin-left: auto;
margin-right: auto;
width: 140px;
height: 40px;
font-size: 14px;
text-transform: uppercase;
background: none;
border-radius: 20px;
color: white;
}

.control-button, .reg-switch-button{
  cursor: pointer;
  display:block;
  margin-left: auto;
  margin-right: auto;
  width: 140px;
  height: 40px;
  font-size: 14px;
  text-transform: uppercase;
  background: none;
  border-radius: 20px;
  color: white;
  }

.switch-button,.reg-switch-button{
border: 2px solid;
}

.control-button{
border: none;
margin-top: 15px;
}

.switch-button:focus, .control-button:focus{
outline:none;
}

.control-button.up{
background-color: var(--left-color);
}

.control-button.in{
background-color: var(--right-color);
}

/* 
--------------------------
  Forms
--------------------------
*/
.form{
width: 100%; 
height: 100%;
position: absolute;
border-radius: 10px;
}

.form .sign-in, .form .sign-up{
--padding: 50px;
position:absolute;
/*  Width is 100% - 385px - padding  */
width: calc(var(--form-width) - 385px - var(--padding) * 2);
height: 100%;
display: flex;
background: #ffffff;
justify-content: center;
flex-direction: column;
align-items: center;
padding: 0px var(--padding);
text-align: center;
}

/* Sign in is initially not displayed */
.form .sign-in{
display: none;
}

.form .sign-in{
left:0;
}

.form .sign-up{
right: 0;
}

.form-right-slide-in{
animation: form-slide-in-right 1s;
}

.form-right-slide-out{
animation: form-slide-out-right 1s;
}

.form-left-slide-in{
animation: form-slide-in-left 1s;
}

.form-left-slide-out{
animation: form-slide-out-left 1s;
}

.form .sign-in h1{
color: var(--right-color);
margin: 0;
}

.form .sign-up h1{
color: var(--left-color);
margin: 0;
}

.social-media-buttons{
display: flex;
justify-content: center;
width: 100%;
margin: 15px;
}

.social-media-buttons .icon{
width: 40px;
height: 40px;
border: 1px solid #dadada;
border-radius: 100%;
display: flex;
justify-content: center;
align-items: center;
margin: 10px 7px;
}

.small{
font-size: 13px;
color: grey;
font-weight: 200;
margin: 5px;
}

.social-media-buttons .icon svg{
width: 25px;
height: 25px;
}

#sign-in-form input, #sign-up-form input{
margin: 12px;
font-size: 14px;
padding: 15px;
width: 260px;
font-weight: 300;
border: none;
background-color: #e4e4e494;
font-family: 'Helvetica Neue', sans-serif;
letter-spacing: 1.5px;
padding-left: 20px;
}

#sign-in-form input::placeholder{
letter-spacing: 1px;
}

.forgot-password{
font-size: 12px;
display: inline-block;
border-bottom: 2px solid #efebeb;
padding-bottom: 3px;
}

.forgot-password:hover{
cursor: pointer;
}

/* 
---------------------------
Animation
---------------------------
*/
@keyframes slideright{
0%{
clip: rect(0, 385px, var(--form-height), 0);
}
30%{
    clip: rect(0, 480px, var(--form-height), 0);
}
/*  we want the width to be slightly larger here  */
50%{
 clip: rect(0px, calc(var(--form-width) / 2 + 480px / 2), var(--form-height), calc(var(--form-width) / 2 - 480px / 2));
}
80%{
     clip: rect(0px, var(--form-width), var(--form-height), calc(var(--form-width) - 480px));
}
100%{
 clip: rect(0px, var(--form-width), var(--form-height), calc(var(--form-width) - 385px));
}
}

@keyframes slideleft{
100%{
clip: rect(0, 385px, var(--form-height), 0);
}
70%{
    clip: rect(0, 480px, var(--form-height), 0);
}
/*  we want the width to be slightly larger here  */
50%{
 clip: rect(0px, calc(var(--form-width) / 2 + 480px / 2), var(--form-height), calc(var(--form-width) / 2 - 480px / 2));
}
30%{
     clip: rect(0px, var(--form-width), var(--form-height), calc(var(--form-width) - 480px));
}
0%{
 clip: rect(0px, var(--form-width), var(--form-height), calc(var(--form-width) - 385px));
}
}

@keyframes text-slide-in-left{
0% {
padding-left: 20px;
}
100% {
padding-left: 50px;
}
}

@keyframes text-slide-in-right{
0% {
padding-right: 20px;
}
100% {
padding-right: 50px;
}
}

@keyframes text-slide-out-left{
0% {
padding-left: 50px;
}
100% {
padding-left: 20px;
}
}

@keyframes text-slide-out-right{
0% {
padding-right: 50px;
}
100% {
padding-right: 20px;
}
}

@keyframes form-slide-in-right{
0%{
padding-right: 100px;
}
100%{
padding-right: 50px;
}
}

@keyframes form-slide-in-left{
0%{
padding-left: 100px;
}
100%{
padding-left: 50px;
}
}

@keyframes form-slide-out-right{
0%{
padding-right: 50px;
}
100%{
padding-right: 80px;
}
}

@keyframes form-slide-out-left{
0%{
padding-left: 50px;
}
100%{
padding-left: 80px;
}
}