/*** Import Fonts ***/
@import url(https://fonts.googleapis.com/css?family=Lato:400,300);

/*** Variables ***/
$Lato:	'Lato', sans-serif;
$Open-sans:	'Open Sans', sans-serif;
$dark-gray: #3c3c3c;
$light-gray: #a6a6a6;
$UIblue: #3CBBF7;
$UIred: #E74C3C;
$UIyellow: #F8E71C;
$UIgreen: #13bf11;
$dark-brown: #542900;

/* -------------------------------- 
Small Window Size and Mobile Style
-------------------------------- */

@media screen and (max-width: 875px) {
  .button-container {
    margin: 10px 10px !important;
  }
  
  h2 {
	  font-size: 15vw !important;
  }
}

@media screen and (max-width: 550px) {
	
	.nav, .navbar {
		width: 90% !important;
		
		.nav-item {
			font-size: 10px !important;
		}
	}
}

@media screen and (max-width: 350px) {
	
	.navbar-container {
		height: 120px !important;

	}
	.nav, .navbar {
		flex-wrap: wrap !important;
		
		.nav-item {
			margin: 5px 5px !important;
		}
	}
}

/* -------------------------------- 
		General Style
-------------------------------- */

html, body {
	font-family: $Lato;
	font-weight: 300;
}

h2 {
	font-size: 100px;
	position: relative;
	color: #5b85c0;
	background-image: -webkit-linear-gradient(90deg, #a558d4 0%, #34619e 80%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	-webkit-animation: hue 60s infinite linear;
}

p.intro-des {
	position: relative;
	font-size: 20px;
	line-height: 35px;
	margin-top: 50px;
	
	a {
		color: $dark-gray;
	}
	
	span {
		font-size: 15px;
	}
}

.button-row-container {
	width: 250px;
	height: 50px;
	position: relative;
	display: flex;
	flex-direction: row;
	justify-content: space-between;
	align-items: center;
	margin: 0 auto;
}

/*** Navbar ***/

.navbar-container {
	position: fixed;
	top: 0;
	left: 50%;
	margin-right: 50%;
	transform: translateX(-50%);
	z-index: 10;
	width: 100%;
	height: 70px;
	background: linear-gradient(to bottom, rgba(255,255,255,1) 50%,rgba(255,255,255,0) 100%); 
}

.nav, .navbar {
	width: 500px;
	margin: auto;
	margin-top: 20px;
	font-family: $Lato;
	font-size: 13px;
	font-weight: 400;
	letter-spacing: 2px;
	list-style: none;
	display: -webkit-flex;
	display: flex;
	-webkit-justify-content: space-between;
	justify-content: space-between;
	flex-wrap: nowrap;

	a {
		color: $dark-gray;
		text-decoration: none;
	}
	
	.nav-item {
		padding: 5px 0;
		
		&:after {
			content: '\00a0';
			display: block;
			height: 1px;
			width: 100%;
			position: relative;
			top: 3px;
			background: transparent;
			transition: top .3s ease-out;
			-webkit-transition: top .3s ease-out;
		}
		
		&:hover:after {
			top: 7px;
			background: #3c3c3c;
		}
	}
}

.active {
	&:after {
		height: 2px !important;
		background: #e74c3c !important;
	}
}


section.page-container {
	margin: auto;
	width: 90%;
	max-width: 800px;
	height: 100vh;
	position: relative;
	text-align: center;
}

#intro {
	max-width: 800px;
	
	.section-container {
		margin-top: 70px;
	}
}

.section-container {
  position: absolute;
  top: 45%;
  left: 50%;
  width: 90%;
  transform: translate(-50%, -50%);
  text-align: center;
  
  h4 {
    font-size: 50px;
    font-weight: 300;
    color: #3c3c3c;
    margin-bottom: 30px;
  }
}

/*** General Button Styles ***/

.button-container {
  display: inline-block;
  margin: 10px 10px;
  cursor: pointer;
  font-weight: 400;
  letter-spacing: 2px;
  height: 45px;
  width: 200px;
  -webkit-perspective: 1000;
  -ms-perspective: 1000;
  perspective: 1000; 
   
  .flipper {
    transition: all .5s ease-in-out;
    -webkit-transform-style: preserve-3d;
    -ms-transform-style: preserve-3d;
    transform-style: preserve-3d;
    
    position: relative;
  }
  
  .button {
    height: 45px;
    width: 200px;
    border-radius: 3px;
    backface-visibility: hidden;
	position: absolute;
	top: 0;
	left: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    -webkit-box-shadow: 1px 2px 4px -1px rgba(60,60,60,0.64);
    box-shadow: 1px 2px 4px -1px rgba(60,60,60,0.64);
    
    i.fa {
      color: white;
      font-size: 20px;
      margin: auto;
      text-shadow: .5px 1px 2px #3c3c3c;
    }
    
    &.front {
      z-index: 10;
    }

    &.back {
      color: white;
      font-size: 15px;
      text-transform: uppercase;
    }
  }
}

/* -------------------------------- 
			Flip
-------------------------------- */

/*** Horizontal Flip ***/

.button-flip-horizontal {
	
	.front {
		background-image: -webkit-linear-gradient(90deg, #53a0fd, #01c2f3);		
		background-image: linear-gradient(90deg, #53a0fd, #01c2f3);
	}
	
	.back {
		background-image: -webkit-linear-gradient(90deg, #01c2f3, #53a0fd);
		background-image: linear-gradient(90deg, #01c2f3, #53a0fd);
		transform: rotateY(-180deg);
	}
	
	&:hover .flipper-flip-horizontal {
		transform: rotateY(180deg);
	}
}

/*** Vertical Flip ***/

.button-flip-vertical {
	
	.flipper-flip-vertical {
    	transform-origin: 100% 22.5px;
	}
	
	.front {
    	background-image:  linear-gradient(90deg, #20438e, #3b5998);
  	}
  
  	.back {
  		transform: rotateX(180deg);
  		background-image:  linear-gradient(90deg, #3b5998, #20438e);
  	}
  	
  	&:hover .flipper-flip-vertical {
		transform: rotateX(-180deg);
	}
}

/*** Oblique Flip ***/

.button-flip-oblique {

	.front {
    	background-image: linear-gradient(90deg, #125688, #ded1c1);
  	}
  
  	.back {
		transform: rotateY(-180deg);
   		background-image: linear-gradient(90deg, #ded1c1, #125688);
  	}
  	
  	&:hover .flipper-flip-oblique {
  		transform: rotate3d(1, 10, 0, 180deg);
	}
}


/* -------------------------------- 
			3D-Flip
-------------------------------- */

.button-flip3d-vertical1 {
	  
  	.flipper-flip3d-vertical1 {
    	transform-origin: 100% 22.5px;
  	}
  
  	.front {
    	transform: translateZ(22.5px);
		background-image:  linear-gradient(90deg, #000, #3c3c3c);
  	}
  
  	.back {
	  	-webkit-transform: rotateX(90deg) translateZ(22.5px);
	  	-ms-transform: rotateX(90deg) translateZ(22.5px); 
    	transform: rotateX(90deg) translateZ(22.5px);
		background-image:  linear-gradient(90deg, #000, #3c3c3c);
  	}
  	
  	&:hover .flipper-flip3d-vertical1 {
  		transform: rotateX(-90deg);
	}
}

.button-flip3d-vertical2 {
	  
  	.flipper-flip3d-vertical2 {
    	transform-origin: 100% 22.5px;
  	}
  
  	.front {
    	transform: translateZ(22.5px);
		background-image:  linear-gradient(90deg, #000, #3c3c3c);
  	}
  
  	.back {
	  	-webkit-transform: rotateX(90deg) rotateZ(180deg) rotateY(180deg) translateZ(22.5px);
	  	-ms-transform: rotateX(90deg) rotateZ(180deg) rotateY(180deg) translateZ(22.5px); 
    	transform: rotateX(90deg) rotateZ(180deg) rotateY(180deg) translateZ(22.5px);
		background-image:  linear-gradient(90deg, #000, #3c3c3c);
  	}
  	
  	&:hover .flipper-flip3d-vertical2 {
  		transform: rotateX(90deg);
	}
}

/* -------------------------------- 
			Slide
-------------------------------- */

.slider {
	
	i {
		transition: all .3s ease-in-out;
	
		&:before {
			transition: all .3s ease-in-out;
		}
		
		&:after {
			font-family: $Lato;
			color: white;
			font-size: 15px;
			text-transform: uppercase;
			letter-spacing: 2px;
			text-shadow: none;
			content: 'Dribbble';
			position: absolute;
			opacity: 0;
			top: 2.5px;
			transition: all .3s ease-in-out;
		}
	}
}

/*** Horizontal Slide ***/

.button-slide-horizontal {
	
	.button {
		background-image:  linear-gradient(90deg, #ea4c89, #ee9b83);
	}
	
	i {
		position: relative;
		display: inline-block;			
		transition: all .3s ease-in-out;

		&:before {
			transition: all .3s ease-in-out;
		}
	}
	
	&:hover i {
		padding-right: 100px;
	}
	
	&:hover i:before {
		opacity: 0;
	}
	&:hover i:after {
		opacity: 1;
	}	
}

/*** Vertical Slide ***/

.button-slide-vertical {
	overflow: hidden;
	height: 45px;
	
	.button {
		background-image:  linear-gradient(90deg, #1c84a6, #3CB371);
		overflow: hidden;
		height: 45px;
	}
	
	i {
		position: relative;
		margin: 0 !important;
		top: 10px;
		transition: all .3s ease-in-out;
		opacity: 1;			
	}
	
	i.back {
		font-family: $Lato;
		color: white;
		font-size: 15px;
		text-transform: uppercase;
		letter-spacing: 2px;
		transform: translateY(30px);
		opacity: 0;
	}
	
	&:hover i.front {
		transform: translateY(-30px);
		opacity: 0;			
	}
	
	&:hover i.back {
		transform: translateY(-20px);
		opacity: 1;			
	}
}

/* -------------------------------- 
			Switch
-------------------------------- */
.switch-container {
	display: inline-block;
	margin: 10px 10px;
}


/*** Toggle Slide Style ***/

.switch-toggle-slide {
	width: 250px;
	height: 20px;
	border: 1px solid rgba(218, 220, 222, 0.7);
	border-radius: 3px;
	will-change: transform;
	background: rgba(74, 82, 85, 0.8);
	position: relative;
		
	span.active {
		display: block;
		position: absolute;
		left: 0;
		width: 125px;
		height: 20px;	
		background: rgba(218, 220, 222, 0.7);
		z-index: -1;
		-moz-transition: .2s ease-in-out;
		-webkit-transition:	.2s ease-in-out;
		transition: .2s ease-in-out;
	}
	
	.switch-slide {
		width: 125px;
		height: 20px;
		display: inline-block;
		float: left;
		vertical-align: middle;
		text-align: center;
		font-size: 13px;
		line-height: 20px;
		font-weight: 400;
		letter-spacing: 1px;
		background: transparent;
		color: white;
		-moz-transition: .2s ease-in-out;
		-webkit-transition:	.2s ease-in-out;
		transition: .2s ease-in-out;
		
		&#slide-on {
			border-top-left-radius: 2px;
			border-bottom-left-radius: 2px;
		}
		
		&#slide-off {
			border-top-right-radius: 2px;
			border-bottom-right-radius: 2px;
		}
		
		&.active-switch {
			color: $dark-gray;
		}
	}
}

/*** Slim Switch Style ***/

input.slim {
	max-height: 0;
	max-width: 0;
	opacity: 0;
	  
	& + label {
		display: block;
		position: relative;
		text-indent: -5000px;
		height: 10px;
		width: 40px;
		border-radius: 15px;
  	}
  	
  	& + label:before {
		content: "";
		position: absolute;
		display: block;
		height: 10px;
		width: 10px;
		top: 0;
		left: 0;
		border-radius: 15px;
		background: transparent;
		-moz-transition: .2s ease-in-out;
		-webkit-transition:	.2s ease-in-out;
		transition: .2s ease-in-out;
	}
	
	& + label:after {
		content: "";
		position: absolute;
		display: block;
		height: 20px;
		width: 20px;
		top: -5px;
		left: 0px;
		border-radius: 15px;
		background: white;
		box-shadow: 0 2px 4px rgba(0, 0, 0, .2);
		-moz-transition: .2s ease-in-out;
		-webkit-transition:	.2s ease-in-out;
		transition: .2s ease-in-out;
	}
	
	&:checked + label:before {
		width: 40px;
	}
  	
  	&:checked + label:after {
	  	left: 20px;
	  	box-shadow: 0 2px 4px rgba(0, 0, 0, .2);
	}
}

input#slim-blue {
	
	& + label {
		background: rgba(60, 187, 247, 0.7);
	}
	
	& + label:after {
		background: $UIblue;
	}
	
	&:checked + label:before {
		background: rgba(60, 187, 247, 0.7);
	}
}

input#slim-red {
	
	& + label {
		background: rgba(231, 76, 60, 0.7);
	}
	
	& + label:after {
		background: $UIred;
	}
	
	&:checked + label:before {
		background: rgba(231, 76, 60, 0.7);
	}
}

input#slim-green {
	
	& + label {
		background: rgba(19, 191, 17, 0.7);
	}
	
	& + label:after {
		background: $UIgreen;
	}
	
	&:checked + label:before {
		background: rgba(19, 191, 17, 0.7);
	}
}

input#slim-black {
	
	& + label {
		background: rgba(0, 0, 0, 0.7);
	}
	
	& + label:after {
		background: black;
	}
	
	&:checked + label:before {
		background: rgba(0, 0, 0, 0.7);
	}
}

/*** iOS Style ***/

input#ios {
	max-height: 0;
	max-width: 0;
	opacity: 0;
  
	& + label {
		display: block;
		position: relative;
		box-shadow: inset 0 0 0px 1px $light-gray;
		text-indent: -5000px;
		height: 30px;
		width: 50px;
		border-radius: 15px;
  	}
  	
  	& + label:before {
		content: "";
		position: absolute;
		display: block;
		height: 30px;
		width: 30px;
		top: 0;
		left: 0;
		border-radius: 15px;
		background: transparent;
		-moz-transition: .2s ease-in-out;
		-webkit-transition:	.2s ease-in-out;
		transition: .2s ease-in-out;
	}
	
	& + label:after {
		content: "";
		position: absolute;
		display: block;
		height: 30px;
		width: 30px;
		top: 0;
		left: 0px;
		border-radius: 15px;
		background: white;
		box-shadow: inset 0px 0px 0px 1px rgba(0, 0, 0, .2), 0 2px 4px rgba(0, 0, 0, .2);
		-moz-transition: .2s ease-in-out;
		-webkit-transition:	.2s ease-in-out;
		transition: .2s ease-in-out;
	}
	
	&:checked + label:before {
		width: 50px;
		background: $UIgreen;
	}
  	
  	&:checked + label:after {
	  	left: 20px;
	  	box-shadow: inset 0 0 0 1px $UIgreen, 0 2px 4px rgba(0, 0, 0, .2);
	}
}

/*** Skewed Switch Style ***/

.switch-skewed {
	position: relative;
	height: 30px;
	width: 50px;
	margin-top: 29px;
	background: $light-gray;
	transform: skew(-15deg, 0);
	overflow: hidden;
	-moz-transition: .2s ease-in-out;
	-webkit-transition:	.2s ease-in-out;
	transition: .2s ease-in-out;
	
	.skewed-container {
		width: 100px;
		height: 30px;
		transform: skew(15deg, 0);
		vertical-align: middle;
		text-align: center;
		font-size: 13px;
		line-height: 30px;
		font-weight: 400;
		letter-spacing: 1px;
		-moz-transition: .2s ease-in-out;
		-webkit-transition:	.2s ease-in-out;
		transition: .2s ease-in-out;

	}
	.skewed {
		float: left;
		height: 30px;
		width: 50px;	
		display: inline-block;
		color: white;
	}
	
	&:hover {
		background: $UIgreen;
	}
	
	&:hover .skewed-container {
		transform: translateX(-50px) skew(15deg, 0);
	}
}

/*** Flat Switch Style ***/

.switch-flat {
	height: 35px;
	width: 35px;
	margin-top: 30px;
	background-image: -webkiet-linear-gradient(#ece9e9 10%, #ffffff 100%);
	background-image: linear-gradient(#ece9e9 10%, #ffffff 100%);	
	-webkit-box-shadow: inset 0px 1px 1px #aeaaaa;
	box-shadow: inset 0px 1px 1px #aeaaaa;
	border-radius: 50%;
	overflow: hidden;
	
	.flat-container {
		height: 70px;
		width: 35px;
		color: $light-gray;
		vertical-align: middle;
		text-align: center;
		font-size: 18px;
		line-height: 35px;
		font-weight: 400;
		-moz-transition: .2s ease-in-out;
		-webkit-transition:	.2s ease-in-out;
		transition: .2s ease-in-out;
		border-radius: 50%;
	}
	
	.flat {
		height: 35px;
		width: 35px;
		border-radius: 50%;
		z-index: -1;
		
		&.flat-off {
			background: transparent;	
		}
		
		&.flat-on {
			color: white;
			font-size: 15px;
		}
	}
	
	&:hover {
		background: rgba(19, 191, 17, 0.7);
		-webkit-box-shadow: inset 0px 1px 1px $UIgreen;
		box-shadow: inset 0px 1px 1px $UIgreen;
	}
	
	&:hover .flat-container {
		transform: translateY(-35px);
	}
}


/* -------------------------------- 
			Water Fill
-------------------------------- */

/*** Water Fill ***/

p.reference {
	margin-top: -20px;
	margin-bottom: 10px;
	font-size: 12px;
	
	a {
		color: $dark-gray;
	}
}

.button-water-fill {
	.button {
		background-position: 0 -50%;
		background-repeat: repeat-x;
	    transition: background-position .75s ease;

   		&:hover {
			background-position: 100% 60%;
			color: white !important;
		}
	}
	
	&.wave-blue .button {
		color: $UIblue;
		background-image: url('https://s32.postimg.org/k0nwdbgol/wave_blue.png');	
	}
	
	&.wave-red .button {
		color: $UIred;
		background-image: url('https://s32.postimg.org/5798sk8xh/wave_red.png');	
	}
	
	&.wave-yellow .button {
		color: $UIyellow;
		background-image: url('https://s32.postimg.org/ku0i5xmph/wave_yellow.png');	
	}
	
	&.wave-white .button {
		background-color: black;
		color: white;
		background-image: url('https://s32.postimg.org/6c3axxved/wave_white.png');	
		
		&:hover {
			color: black !important;
		}
	}
	
	&.wave-black .button {
		color: black;
		background-image: url('https://s32.postimg.org/g5kiaqxit/wave_black.png');	
	}
}

@media (max-width: 768px) {
    body {
        font-size: 16px;
        padding: 10px;
    }

    header, footer {
        padding: 10px;
        text-align: center;
    }

    .container {
        flex-direction: column;
        padding: 0 15px;
    }

    nav ul {
        flex-direction: column;
        gap: 10px;
    }

    .hero, .section, .content {
        padding: 20px 10px;
        text-align: center;
    }

    img {
        max-width: 100%;
        height: auto;
    }

    h1, h2, h3 {
        font-size: 1.5em;
    }

    .button, button {
        width: 100%;
        font-size: 1em;
        padding: 12px;
    }
}



/* Добавление вертикальных отступов между кнопками в мобильной версии */
@media (max-width: 768px) {
    .button,
    button,
    .btn,
    nav ul li,
    .mobile-button {
        margin-bottom: 15px;
    }

    nav ul {
        padding: 0;
        margin: 0;
    }
}