main.css

#toTop {
	width:50px;
	height: 50px;
	background:url(img/up.png);
	text-align:center;
	padding:5px;
	position:fixed;
	bottom:10px; /* отступ кнопки от нижнего края страницы*/
	right:10px;
	cursor:pointer;
	display:none;
	font-family:verdana;
	font-size:11px;
}

.open {
	display: flex !important;
}

.open_header {
	padding-bottom: 100vh !important;
}

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

@font-face {
	
	font-family: suisseIntl-r;
	src: url(fonts/SuisseIntl-Regular.otf);
	font-display: swap;
}

@font-face {
	
	font-family: suisseIntl-sb;
	src: url(fonts/SuisseIntl-SemiBold.otf);
	font-display: swap;
}

body {
  background-color: #1A1C29;
	font-family: suisseIntl-r;
	z-index: 0;
	color: #fff;
	word-spacing: 0.1rem;
}

.container {
	width: 1070px;
	/*позиционирование по центру*/
	margin: 0 auto; 
}

.circle_bac {
	position: absolute;
	top: 50px;
	z-index: auto;
	pointer-events: none;
}

.line_bac {
	position: absolute;
	top: 50px;
	z-index: auto;
	pointer-events: none;
	width: 60%;
}

a {
	text-decoration: none;
}

a:hover {
	animation: shining 2s linear infinite;
}

@keyframes shining {
    0% {
        text-shadow: 0 0 10px rgba(255, 255, 255, 0.7), 0 0 20px rgba(153, 250, 245, 0.7);
        color: #fff;
    }
    50% {
        text-shadow: 0 0 20px rgba(255, 255, 255, 1), 0 0 40px rgba(153, 250, 245, 0.9);
        color: #fffb00;
    }
    100% {
        text-shadow: 0 0 10px rgba(255, 255, 255, 0.7), 0 0 20px rgba(153, 250, 245, 0.7);
        color: #fff;
    }
}

.project-name {
	transition: text-shadow 0.1s, color 0.1s;
  }

.project-name:hover {
	text-shadow: 0 0 10px rgba(255, 255, 255, 0.5), 0 0 20px rgba(153, 250, 245, 0.5);
	color: #fefb35;
	animation: none; 
}

.shining-image {
	border-radius: 80px;
	transition: transform 0.5s, box-shadow 0.3s;
  }

.shining-image:hover {
	transform: scale(1.015); 
	box-shadow: 0 0 10px rgba(255, 255, 255, 0.7), 0 0 20px rgba(153, 250, 245, 0.7);
}

h1 {
	font-size: 58px;
	font-family: suisseIntl-sb;
}

h2 {
	font-size: 30px;
	text-transform: uppercase;
}

h3 {
	font-size: 58px;
}

.header {
	padding-bottom: 235px;
}

.hidden{
	display: none;
}

.logo img {
	height: 30px;
	margin: 0 auto;
	vertical-align: middle
}

.header a {
	color: #fff;
}

.menu-b {
	display: none;
}

.header_menu {
	display: flex;
	/*центрирование меню по середине */
	left: 50%;
  	transform: translateX(-50%);
	padding: 10px 50px;
	align-items: center; 
	border-radius: 40px;
	background: rgba(121, 127, 143);
	overflow: hidden;
	position: fixed;
	top: 10px;
	z-index: 5;
}

.burger {
	display: none;
	position: relative;
	z-index: 5;
	align-items: center;
	justify-content: flex-end;
	width: 30px;
	height: 22px;
}

.burger span {
	height: 3px;
	width: 100%;
	transform: scale(1);
	background-color: #fff;
}

.burger::before, .burger::after {
	content: '';
	position: absolute;
	height: 3px;
	width: 100%;
	background-color: #fff;
	transition: all 0.3s ease 0s;
}

.burger::before {
	top: 0px;
}

.burger::after {
	bottom: 0px;
}

.burger.active span {transform: scale(0)}

.burger.active::before {
	top: 50%;
	transform: rotate(-45deg) translate(0, -50%);
}

.burger.active::after {
	bottom: 50%;
	transform: rotate(45deg) translate(0, 50%);
}

.nav ul {
	display: flex;
}

.nav ul li a {
	font-size: 14px;
	margin-right: 20px;
	color: #ffffff;
	font-size: 16px;
}

ul, li {
	display: block;
	padding: 0;
	margin: 0;
}

.nav ul li a.join-button {
	white-space: nowrap;
    color: #7dffe3;
	text-transform: uppercase;
}

.logo {
	margin-right: 100px;
}

.main_description {
	position: relative;
	margin-top: 310px;
	z-index: 1;
}

.main_description p {
	margin-top: 10px;
	font-size: 16px;
	line-height: normal;
	color: #97999A;
	width: 50%;
}

.line_3d {
	position: absolute;
	top: 90px;
	right: 0px;
	z-index: auto;
}

.line_3d img {
	width: 800px;
}

.projects {
	padding-top: 120px;
}

.projects_items {
	display: flex;
	flex-direction: column;
	justify-content: space-between;
}

hr {
	margin-top: 30px;
}
.projects_item {
	display: flex;
	justify-content: space-between;
	margin-top: 30px;
}

.projects_item h3 {
	width: 95%;
	line-height: 90%;
}

.desc-left .projects_description {
	color: #97999A;
	width: 70%;
	margin-top: 20px;
	margin-bottom: 50px;
}

.desc-left a {
	text-decoration: none;
	color: inherit;
}

.desc-left .developers-list
{
	display: flex;
	flex-wrap: wrap;
	gap: 5px;
}


.desc-left .developers-list .developer-name .tooltip {  
	position: relative;  
	display: inline-block;   
}  

.desc-left .developers-list .developer-name .tooltip .tooltip-text {  
	visibility: hidden;  
	width: 90px;
	font-size: 10px;
	background-color: #1a1c29;
  color: #ffe791;
	text-align: center;
	border-radius: 5px;
	padding: 5px;
	position: absolute;
	top: 0%;
	left: 50%;
	transform: translate(17%, -25%);
	z-index: 1;
	opacity: 0; 
	transition: visibility 0s, opacity 0.3s linear;
}  

.desc-left .developers-list .developer-name .tooltip:hover .tooltip-text {  
	visibility: visible; 
	opacity: 1; 
} 

.desc-left .developers-list .developer-name img {
	width: 45px;
	border-radius: 50%;
	border: #3f4676 2px solid;
}

.desc-left .see_more {
	background: linear-gradient(45deg, rgba(251, 155, 215, 1), rgba(234, 241, 96, 1));
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	color: rgba(234, 241, 96, 1);
}

.projects_item .desc-left {
	margin-top: 20px;
}

.projects h2 {
	margin-bottom: 30px;
}

.see_arrow .see_more{
	margin-right: 10px;
}

.see_arrow img {
	display: inline-block;
}

.see_arrow {
	display: flex;
  z-index: 1;
}

hr {
	size: 3px;
	width: 100%;
	color: #3D4250;
}

.more_pr {
	background-color: #3D4250;
	border: 0;
    padding: 10px 20px;
    text-align: center;
	color:#fff;
    border-radius: 40px;
	font-size: 16px;
	margin: auto;
	margin-top: 30px;
	cursor: pointer;
}


/*LOAD MORE*/
#hide-button{
	display: none;
}


#projects_items .load_more {
	display: none;
}

#projects_items .load_more.show {
	display: flex;
}

.line_hr {
	display: none;
}

.line_hr.sh {
	display: block;
}

.creators {
	padding-top: 40px;
}

.star {
	position: absolute;
	width: 30px;
}
.persons {
	display: flex;
	margin-top: 40px;
	justify-content: space-between;
	flex-wrap: wrap;
}

.person {
	margin-top: 20px;
	width: 300px;
}

.name_and_img {
	display: flex;
}

.person_name {
	font-size: 20px;
	margin-top: 20px;
	margin-left: 30px;
	width: 30%;
}

.persons img {
	border-radius: 90px;
	width: 90px;
}

.about_person {
	color: #97999A;
	font-size: 16px;
	margin-top: 20px;
	width: 200px;
}

.join {
	margin-top: 80px;
}

.join h2 {
	margin-top: 40px;
}

.join p {
	font-size: 16px;
	margin-top: 40px;
	color: #97999A;
}

.join a {
	text-decoration: none;
	color: #7dffe3;
	font-weight: bold;
}

footer {
	margin-top: 80px;
	padding-bottom: 80px;
}

.github_container {
	display: flex;
	justify-content: space-between;
}

.github {
	justify-content: center;
}

.github img {
	width: 40px;
}

/*Адаптив*/

  @media screen and (max-width: 1200px) {
	.container {
	  width: 900px;
	}

	.line_3d img {
		width: 700px;
	}

	.main_description {
		margin-top: 270px;
	}

	.desc-left {
		width: 50%;
	}

	.desc-right img {
		width: 100%;
	}
  }
  
  @media screen and (max-width: 990px) {
	.container {
	  width: 720px;
	}

	h1 {
		font-size: 50px;
	}
	h3 {
		font-size: 36px;
	}
  }
  
  @media screen and (max-width: 767px) {
	.container {
	  width: 520px;
	}

	h2 {
		font-size: 25px;
	}

	h3 {
		font-size: 30px;
	}

	.header_menu {
		background: none;
		justify-content: space-between;
		border-radius: 0px;
		top: 0px;
		width: 100%;
		padding-bottom: 0vh;
		top: 0px;
		padding-top: 30px;
	}

	.burger {
		display: flex;
		z-index: 55;
	}

	.logo {
		z-index: 55;
	} 

	.nav {
		display: none;
		flex-direction: column;
		position: fixed;
		height: 100%;
		width: 100%;
		top: 0; bottom: 0; left: 0; right: 0;
		z-index: 50;
		overflow-y:auto;
		padding: 80px 50px;
		background-color: #1A1C29;
		animation: burgerAnimation 0.4s;
	}
	
	.nav ul {
		flex-direction: column;
		margin-top: 50px;
	}

	.nav ul li {
		border-bottom: solid #3D4250;
		padding-top: 20px;
		padding-bottom: 20px;
	}

	.nav ul li a {
		font-size: 25px;
		text-transform: uppercase;
	}

	.line_3d {
		top: 330px;

	}
	
	.line_3d img {
		width: 600px;
	}
	.desc-left .projects_description {
		width: 100%;
	}

	.main_description {
		margin-top: 155px;
		text-align: center;
	}
	.main_description p {
		width: 100%;
	}

	.header {
		padding-bottom: 275px;
	}
	.projects {
    padding-top: 190px;
	}
	.desc-left {
		width: 70%;
	}

	.persons {
		flex-wrap: wrap;
		margin-top: 60px;
	}

	.person {
		width: 200px;
		margin-top: 20px;
	}
	
	.circle_bac {
		width: 70%;
		z-index: 0;
	}

	.line_3d img {
		width: 550px;
	}

	.github span {
		display: none;
	}

  }
  
  @media screen and (max-width: 575px) {
	.container {
	  width: 100%;
	  padding: 0 30px;
	}

	.header_menu {
		padding-left: 30px;
		padding-right: 30px;
	}

	.nav {
		z-index: 1;
	}

	h1 {
		font-size: 40px;
	}

	.line_3d {
		top: 360px;

	}

	.projects_item {
		flex-wrap: wrap;
	}

	.desc-left, .desc-right {
		width: 100%;
	}

	.desc-left {
		margin-bottom: 20px;
	}

	.person {
		margin: 0 15px;
		margin-top: 20px;
		width: auto;
	}
	.person_name {
		width: 100%;
		margin: auto 15px;
	}
	.about_person {
		width: 100%;
	}
	#toTop {
		visibility: hidden;
	}

	footer {
		padding-bottom: 40px;
	}

  }

	@keyframes burgerAnimation {
		from {opacity: 0}
		to {opacity: 1}
	}
	

	.mav{
		padding-top: 40px;
	}
	
.mav h2 {
    margin-bottom: 10px;
		padding-top: 20px;
}


.Mission, .Values {
    padding: 20px 0;
    font-family: Arial, sans-serif; 
    font-size: 16px; 
    line-height: 1.6; 
    color: #97999A; 
}