:root {
    --с-black: black;
    --c-grey: #141414;
    --c-lgrey: #222;
    /*--c-teal: #3cc;*/
    --c-teal: #0ff;
    --c-white: #fff;
    --font: 'Montserrat', 'Verdana';
}

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

.editor-preview {
    display: flex;
    flex-direction: column;
}

body {
    background-color: var(--c-grey);
}

.header {
    width: 100vw;
    background-color: var(--c-teal);
    color: var(--c-white);
    position: fixed;
    min-height: 3rem;
    height: min-content;
    z-index: 100;
    box-shadow: 0px 0px 1rem 0px rgba(0,0,0,0.2);
    display: grid;
    grid-template-columns: 1fr 80vw 1fr;
}

.header-wrapper {
    grid-column: 2 / -2;
    display: flex;
    flex-direction: row;
    justify-content: space-evenly;  
    align-items: center; 
}

.header-wrapper h2 {
    font-family: var(--font);
}

.header-wrapper a {
    color: var(--c-grey);
    text-decoration: none;
    transition: transform .2s;
}

.header-wrapper a:hover {
    text-shadow: 2px 2px 3px var(--c-white);
}

.pc-link {
    display: contents;
}

.pc-link h2 {
    font-size: clamp(.5rem, .5vw + 1rem, 1.5rem);
    padding: 0 .5rem;
}

.title-and-logo{
    display: flex;
    flex-direction: row;
    align-items: center;
}

.title-and-logo h2 {
    font-size: clamp(.5rem, .5vw + 1rem, 1.5rem);
}

.title-and-logo img{
    height: 2.5rem;
    padding-right: 0.3rem;
}





/* скрываем чекбокс */
#menu__toggle {
    opacity: 0;
}

.hamburger-menu {
    display: flex;
    display: none;
}

/* стилизуем кнопку */
.menu__btn {
    display: flex; /* используем flex для центрирования содержимого */
    align-items: center;  /* центрируем содержимое кнопки */
    position: relative;
    width: 2rem;
    height: 2rem;
    cursor: pointer;
    z-index: 1;
}
/* добавляем "гамбургер" */
.menu__btn > span,
.menu__btn > span::before,
.menu__btn > span::after {
    display: block;
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: var(--с-black);
}

.menu__btn > span::before {
    content: '';
    top: -8px;
}

.menu__btn > span::after {
    content: '';
    top: 8px;
}

/* контейнер меню */
.menu__box {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: fixed;
    z-index: -2;
    visibility: hidden;
    top: 2.9rem;
    right: -100%;
    width: 100vw;
    height: max-content;
    margin: 0;
    padding: 1rem;
    list-style: none;
    text-align: left;
    background-color: var(--c-teal);
    box-shadow: 1px 0px 6px rgba(0, 0, 0, .2);
}

/* элементы меню */
.menu__item {
    display: block;
    padding: 12px 24px;
    font-size: 20px;
    font-weight: 600;
    text-decoration: none;
}

.menu__item:hover {
    background-color: #CFD8DC;
}

#menu__toggle:checked ~ .menu__btn > span {
    transform: rotate(45deg);
}

#menu__toggle:checked ~ .menu__btn > span::before {
    top: 0;
    transform: rotate(0);
}

#menu__toggle:checked ~ .menu__btn > span::after {
    top: 0;
    transform: rotate(90deg);
}

#menu__toggle:checked ~ .menu__box {
    visibility: visible;
    right: 0;
}

.menu__btn > span,
.menu__btn > span::before,
.menu__btn > span::after {
  transition-duration: .25s;
}

.menu__box {
  transition-duration: .25s;
}

.menu__item {
  transition-duration: .25s;
}


@media (width <= 1000px) {
    .hamburger-menu {
        display: contents;
    }

    .header {
        grid-template-columns: 1fr 90vw 1fr;
    }

    .header-wrapper {
        justify-content: space-between;
    }

    .pc-link {
        display: none;
    }
}






.content-wrapper {
    min-height: 95vh;
    padding-top: 3rem;
    color: var(--c-white);
    display: grid;
    grid-template-columns: 1fr 80vw 1fr;
    font-family: var(--font);
}

@media (width <= 800px) {
    .content-wrapper{
        grid-template-columns: 1fr 90vw 1fr;
    }
}


.block_content_h1 {
    grid-column: 2/-2;
    font-size: clamp(1.5rem, .5vw + 2rem, 2.5rem);
    padding: 1rem 2rem;
}

.block_content_h2 {
    grid-column: 2/-2;
    font-size: 2rem;
    margin: 0 1rem;
    padding-top: 1rem;
}

.content-wrapper a {
    color: var(--c-teal);
    font-size: 1.5rem;
    text-decoration: none;
}

.main_banner {
    grid-column: 1 / -1;
    width: 100%;
}

.main_banner img{
    width: 100vw;
}

.main_text_section {
    grid-column: 2/-2;
    display: grid;
    grid-template-columns: 50% 50%;
    margin-bottom: 4rem;
}

.main_text_section h1{
    font-size: 6vw;
    padding: 0 2rem 1rem 2rem;
    z-index: 30;
    grid-column: 1 / -1;
    filter: drop-shadow(0px 0px 20px var(--с-black));
}

.main_text_section img{
    width: 50%;
    transform: rotate(30deg);
    margin-left: 10vw;
    filter: drop-shadow(0px 0px 1vw rgba(255, 255, 255, 0.322));
}

.main_text_section h3{
    padding-top: 1rem;
    font-size: clamp(1rem, .5vw + 1rem, 2rem);
    line-height: clamp(2rem, 1vw + 2rem, 4rem);;
    text-align: right;
}

@media (width <= 800px) {
    .main_text_section{
        grid-template-columns: 1fr;
        margin-bottom: 2rem;
    }

    .main_text_section h1{
        text-align: center;
        font-size: 7vw;
    }

    .main_text_section img{
        margin: 0 auto;
    }

    .main_text_section h3{
        padding-top: 3rem;
        line-height: 1.3rem;
        text-align: center;
    }
}

.main_links_section {
    grid-column: 2/-2;
    display: flex;
    flex-direction: row;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.links_h2{
    padding: 0 2rem;
    min-width: 100%;
    font-size: clamp(3rem, 3vw + 1.5rem, 5rem);
}

.main_links_block {
    background-color: var(--c-lgrey);
    border-radius: .5rem;
    box-shadow: 0px 0px 1rem 0px rgba(0,0,0,0.2);
    border: var(--c-teal) solid 2px;
    padding: .5rem 1rem;
    transition: transform .2s;
}

.main_links_block:hover{
    transform: scale(1.02);
    box-shadow: 0px 0px 0.5rem 0px var(--c-teal);
}

.main_links_section img{
    height: 5vh;
    filter: drop-shadow(0px 0px 2px rgba(255, 255, 255, 0.295));

}

.main_links_block a{
    display: flex;
    flex-direction: row;
    gap: 2rem;
    align-items: center;
}

.main_links_block h3 {
    font-size: clamp(1rem, 1vw + 1.5rem, 3rem);
}

.activity_section {
    grid-column: 2/-2;
}

.activity_section {
    grid-column: 2/-2;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

@media (width <= 800px) {
    .activity_section{
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }

    .main_links_section {
        gap: 1rem;
    }

    .main_links_block {
        padding: .3rem .7rem;
    }

    .main_links_block a {
        gap: 1rem;
    }

    .main_links_block h3 {
        font-size: clamp(1rem, 1vw + 1rem, 2rem);
        text-align: center;
    }
}

.activity_h2 {
    grid-column: 1 / -1;
    padding: 0 2rem;
    min-width: 100%;
    font-size: clamp(3rem, 3vw + 1.5rem, 5rem);
}

.activity_block {
    background-color: var(--c-lgrey);
    border-radius: .5rem;
    box-shadow: 0px 0px 1rem 0px rgba(0,0,0,0.2);
    border: var(--c-teal) solid 2px;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    height: min-content;
    width: 100%;
    padding: 2rem 0;
    transition: transform .2s;
}

.activity_block:hover {
    transform: scale(1.02);
    box-shadow: 0px 0px 0.5rem 0px var(--c-teal);
}

.activity_block h3{
    font-size: clamp(1rem, 1vw + 1.5rem, 3rem);
    width: 100%;
    text-align: center;
}

@media (width <= 800px) {
    .activity_block h3{
        grid-template-columns: 1fr 1fr;
    }
}

.join_htt {
    grid-column: 2 / -2;
    width: 100%;
    text-align: right;
    padding: 2rem 2rem;
    animation: color_change 2s infinite alternate;
}

.join_htt a{
    font-size: clamp(1rem, 1vw + 1.5rem, 3rem);
    color: var(--c-white);
}

@keyframes color_change {
	from { 
        filter: drop-shadow(0px 0px 2px var(--c-white));
    }
	to { 
        filter: drop-shadow(0px 0px 15px var(--c-teal));
    }
}

.main_tag {
    margin-top: 4rem;
    grid-column: 2 / -2;
    width: 100%;
    text-align: center;
    font-size: 10vw;
    color: var(--c-white);
    filter: drop-shadow(0px 0px 10px var(--с-black));
}




footer {
    display: grid;
    grid-template-columns: 1fr 80vw 1fr;
    padding-top: 5rem;
}

.footer_block {
    grid-column: 2 / -2;
    min-height: 15vh;
    background-color: var(--c-lgrey);
    z-index: 50;
    border-top: var(--c-teal) solid 2px;
    border-left: var(--c-teal) solid 2px;
    border-right: var(--c-teal) solid 2px;
    border-radius: .5rem .5rem 0 0;
    box-shadow: 0px 0px 1rem 0px rgba(0,0,0,0.2);
    font-family: var(--font);
    color: var(--c-white);
    padding: 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
}

.footer_author{
    padding-left: 1rem;
    min-height: 10vh;
    display: flex;
    flex-direction: row;
    gap: 1rem;
    height: min-content;
    align-items: center;
    /* border-left: var(--c-teal) solid 2px; */
}

.footer_author img{
    height: 4.5rem;
}

.footer_author a{
    color: var(--c-teal);
    text-decoration: none; 
}

.footer_author a:hover{
    color: #f93;
    filter: drop-shadow(0px 0px 2px var(--c-white));
}

.author_links {
    width: 100%;
    display: flex;
    flex-direction: column;
}

.footer_invite {
    display: flex;
    align-items: center;
    padding: .5rem .5rem;
    border-right: var(--c-teal) solid 2px;
    border-left: var(--c-teal) solid 2px;
}

.footer_invite a{
    width: 100%;
    text-decoration: none;
    color: var(--c-white);
    transition: transform .2s;
    text-align: center;
    animation: color_change 2s infinite alternate;
}

.footer_invite:hover {
    transform: scale(1.02);
    color: var(--c-teal);
}

.footer_links{
    display: grid;
    grid-template-columns: 1fr 1fr;
    /* border-right: var(--c-teal) solid 2px; */
    padding-right: 1rem;
}

.footer_links a{
    color: var(--c-white);
    text-decoration: none;
}

.footer_links a:hover{
    color: var(--c-teal);
    filter: drop-shadow(0px 0px 2px var(--c-white));
}

.footer_admin {
    color: var(--c-lgrey);
}

@media (width <= 800px) {
    .join_htt {
        padding: 2rem 0;
        text-align: center;
    }

    footer {
        grid-template-columns: 1fr 96vw 1fr;
        padding-top: 2rem;  
    }

    .footer_block {
        grid-template-columns: 1fr;
        padding: 1rem;
    }

    .footer_author{
        border-top: var(--c-teal) solid 2px;
        border-left: 0;
        padding-left: 0;
    }

    .footer_links{
        padding-bottom: .5rem;
        border-bottom: var(--c-teal) solid 2px;
        border-right: 0;
        column-gap: 1rem;
        padding-right: 0;
    }

    .footer_invite{
        border-left: 0;
        border-right: 0;
    }

    .main_tag {
        margin-top: 2rem;
    }
}