@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@200..700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&family=Oswald:wght@200..700&display=swap');

:root{
    --color-bg:       #14133A;
    --color-bg2:      #2F016670;
    --color-main:     #FFFFFF;
    --color-accent1:  #1098FA;
    --color-accent2:  #5D3E86;
    --color-accent3:  #D207D4;
    --color-grey:     #c0c0d4;
}

* {
    padding: 0;
    margin: 0;
    font-family: Oswald;
    color: var(--color-main);
}

:target {
  scroll-margin-top: 6rem;
}

html {
    /* Шрифт*/
    font-size: 16px;

    /* Цвета */
    color: var(--color-main);
    background-color: var(--color-bg);

    /* Ширина страницы */
    width: 100%;
    box-sizing: border-box;
}

h2 {
    font-size: 1.8rem;
    font-weight: 500;
    text-align: center;
    padding-bottom: 1.5rem;
}

p {
    font-size: 1rem;
    padding-bottom: 0.8rem;
    line-height: 120%;
}

a {
  text-decoration: none;
  padding: 0;
  margin: 0;
}

/* HEADER */

header {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;

    left: 0;
    top: 0;
    
    position: sticky;

    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    padding-left: 1.5rem;
    padding-right: 1.5rem;

    background-color: var(--color-bg);
}

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

.logo-img {
    height: 3rem;
    width: 3rem;
    padding: 1rem;
}

.rnf_logo{
    width: 4.5rem;
}

.humburger-menu button{
    background-color: transparent;
    color: transparent;
    border: none;
} 

.nav {
    position: fixed;
    top: 5rem;
    right: -100%;
    /* height: 10vh; */
    width: 100%;
    background: var(--color-bg);
    flex-direction: column;
    transition: right 0.5s ease;
}

.nav.active {
    right: 0%;
  }

.nav-list {
    list-style: none;
    text-align: left;

    margin: 0;
    padding: 0;
    padding-top: 1rem;
    padding-left: 2rem;
    padding-bottom: 0.5rem;

    font-size: 2rem;
}

.nav-list li{
    color: var(--color-grey);
}

.row-menu {
    display: none;
}

/* .menu-entry {
    padding: 0.3rem;
}

header button {
    background-color: var(--color-bg2);
    color: var(--color-grey);

    font-size: 0.8rem;

    padding-left: 0.4rem;
    padding-right: 0.4rem;
    padding-top: 0.2rem;
    padding-bottom: 0.2rem;

    border: 2px solid var(--color-accent2);
    border-radius: 0.5rem;
} */

/* SECTIONS */

section {
    padding-top: 2rem;
}

/* INTRO */

#intro{
    padding-top: 3rem;
    padding-bottom: 2rem;
}
.intro-row {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
}

.intro-title h1{
    font-weight: 500;
    font-size: 2rem;
}

.intro-title span{
    padding-top: 0.2rem;
    padding-bottom: 0.2rem;
    padding-left: 1.2rem;
    padding-right: 1.2rem;

    font-size: 1.2rem;
    font-weight: 500;

    border: 0.15rem;
    border-color: var(--color-accent3);
    border-style: solid;

    white-space: nowrap;
    vertical-align: 20%;
}

.intro-img {
    display: none;
}
/* ABOUT */

#about {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}


/* LECTURES */

.cards {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}
.cards button {
    margin: 0.6rem;
}
.cards button {
    background-color: var(--color-bg2);

    /* margin: 0.6rem; */

    border: 0.12rem solid var(--color-accent2);
    border-radius: 1rem;
}

.cardbox{
    display: flex;
    flex-direction: column;
    /* justify-content: space-evenly; */
    justify-content: start;
    align-items: center;

    padding: 0rem;
    margin: 0.6rem;
    width: 10.5rem;
    height: 15rem;
}

.cardphoto {
    display: flex;
    width: 8rem;
    height: 8rem;

    margin-top: 1rem;

    border: 0.15rem;
    border-color: var(--color-accent2);
    border-style: solid;
    border-radius: 50%;
}



.photo-circle {
    background-color: var(--color-grey);
    border-radius: 50%; /* Делает элемент круглым */
    object-fit: cover;
}

.cardtext {
    margin: auto;
}
.cardtext p{
    text-align: center;
    font-size: 0.8rem;
    padding: 0;
    margin: 0;
    font-weight: 500;
    line-height: 1.1rem;
}

.cardtext a:hover {
  text-decoration: underline; 
}

.cardtext span{
    color: var(--color-accent2)
}

/* ORGANIZATORS */

#organizers button {
    margin: 0.6rem;
}

/* PROGRAM */

table {
    margin: auto;
    width: 95%;
    border-collapse: collapse;
}

th, td {
  border: 4px solid var(--color-accent2);
  text-align:center;
}

th:nth-child(1) {
    width: 17%;
}
th:nth-child(2) {
    width: 17%;
}
th:nth-child(3) {
    width: 17%;
}
th:nth-child(4) {
    width: 49%;
}

.tb-head {
    padding: 0.3rem;
    font-size: 0.8rem;
    font-weight: normal;
}

.col-week {
    padding: 0.3rem;
    font-size: 0.9rem;
}

.col-date, .col-place, .col-lunch {
    padding: 0.3rem;
    font-size: 0.9rem;
}

.col-time {
    padding-top: 0.3rem;
    padding-bottom: 0.3rem;

    font-size: 0.8rem;
    text-align: center;
}

.col-desc {
    text-align: left;
}

.col-desc h3{
    padding-top: 0.7rem;
    padding-bottom: 0.5rem;
    padding-left: 1.3rem;
    padding-right: 1rem;

    font-size: 0.8rem;
    font-weight: normal;
}

.col-desc p, .col-desc ul{
    padding-left: 1.3rem;
    padding-right: 1rem;
    padding-top: 0em;
    margin-top: 0em;

    font-size: 0.6rem;
    padding-bottom: 1rem;
}

tfoot tr td{
    padding-top: 0.7rem;
    padding-bottom: 0.5rem;
    padding-left: 1.3rem;
    padding-right: 1rem;

    column-count: 2;

    line-height: 1.4rem;
    text-align: left;
}

tfoot tr td p{
    padding: 0.2rem;
    font-size: 0.8rem;
    color: var(--color-grey);
}

/* VENUE */

#venue {
    padding-left: 6vw;
    padding-right: 6vw;
    padding-bottom: 2rem;
}

.venue{
    display: flex;
    flex-direction: column;
    align-items: center;
}

.contacts {
    padding-bottom: 2rem;
}

.contact-box {
    display: flex;
    align-items: center;
    padding-bottom: 1.5rem;
}

.contact-box a:hover {
  text-decoration: underline; 
}

.contacts p{
    padding-top: 0rem;
    padding-bottom: 0rem;
    line-height: 1.7rem;
}

.contact-icon {
    height: 1.5rem;
    padding-right: 1.2rem;
}

.address-icon {
    height: 1.8rem;
    padding-right: 1.3rem;
}

.map {
    width: 80vw;
    height: 40vw;
}

.social-media {
        display: flex;
        flex-direction: row;
        justify-content: end;

        flex: 1;

        padding-left: 3rem;
    }

    .media-icon {
        width: 2rem;;
        padding-right: 1.5rem;
    }

    .rutube-icon {
        width: 1.6rem;
    }

    .vk-icon {
        width: 2.4rem;
    }

/* FOOTER */

footer {
    padding-left: 6vw;
    padding-right: 6vw;
}

.copywrite {
    border-top: 1px solid var(--color-grey);
    padding-bottom: 1rem;
    padding-top: 1rem;
}


footer span {
    font-size: 0.6rem;
    color: var(--color-grey);
    padding-left: 1rem;
}


/* Адаптивные стили */

@media (min-width: 481px) {
    html {
    /* Шрифт*/
        font-size: 20px;
    }

    #intro {
        padding-top: 3rem;
    }
    button {
        font-size: 0.8rem;
    }
}

@media (min-width: 768px) {
    html {
    /* Шрифт*/
        font-size: 30px;
    }

    .logo-img {
        height: 2rem;
        width: 2rem;
        padding: 0.5rem;
    }

    .rnf_logo {
        width: 3rem;
    }

    .humburger-menu{
        display: none;
    }

    .nav {
        display: none;
    }

    .row-menu {
        display: flex;
        justify-content: center;
        flex-direction: row;
        flex-wrap: wrap;
    }
    .menu-entry {
        padding: 0.15rem;
    }

    .row-menu button {
        background-color: transparent;
        color: var(--color-grey);
        padding: 0.3rem;

        border-radius: 9px;
        border: 0;


        font-size: 0.7rem;
        line-height: 0.8rem;

    }
    
    .row-menu button:hover{
        background-color: var(--color-accent1);
        color: var(--color-main);
        cursor: pointer;
    }
}
  

@media (min-width: 1024px) {
    html {
    /* Шрифт*/
        font-size: 16px;
    }

    h2 {
        margin-top: 0rem;
        padding-bottom: 2.4rem;
        font-size: 3.5rem;
    }

    p {
        margin-top: 1rem;
        font-size: 1.7rem;
        line-height: 120%;
    }

    /* HEADER */

    header {
        padding-left: 2vw;
        padding-right: 5vw;
        padding-top: 0.5rem;
        height: 7rem;
    }

    .logo-img {
        height: 4rem;
        width: 4rem;
        padding: 1rem;
    }

    .rnf_logo{
        width: 6rem;
    }

    .row-menu {
        flex-wrap: nowrap;
    }

    .menu-entry{
        padding: 0.5rem;
    }

    .row-menu button {
        padding: 1rem;

        font-size: 1.4rem;
        line-height: 2rem;
    }

    /* SECTIONS */

    section {
        padding-top: 4rem;
    }

    /* INTRO */

    #intro {
        padding-top: 2rem;
        padding-left: 6vw;
        padding-right: 6vw;
    }

    .intro-title h1{
        font-size: 4.5rem;
    }

    .intro-title span{
        padding-top: 0.2rem;
        padding-bottom: 0.2rem;
        padding-left: 2.6rem;
        padding-right: 2.6rem;

        font-size: 3rem;

        border: 0.4rem;
        border-color: var(--color-accent3);
        border-style: solid;

        white-space: nowrap;
        vertical-align: 18%;
    } 

    /* ABOUT */

    #about {
        padding-left: 7vw;
        padding-right: 7vw;
    }

    /* LECTURES */

    #lectures {
        padding-right: 0vw;
        padding-left: 0vw;
    }

    .cards {
        margin: auto;
        width: 1000px;
        justify-content: space-evenly;
    }

    .cards button {
        background-color: transparent;
        
        border: 0.24rem solid var(--color-bg);
        border-radius: 2rem;
    }
    
    .cards button:hover {
        background-color: #2F016670;
        cursor: default;

        border: 0.24rem solid var(--color-accent1);
        border-radius: 2rem;
    }

    .cardbox{
        margin-top: 2rem;
        width: 22rem;
        height: 30rem;
    }

    .cardphoto {
        width: 16rem;
        height: 16rem;

        border: 0.3rem;
        border-color: var(--color-accent2);
        border-style: solid;
        border-radius: 50%;
    }

    .cardtext p{
        font-size: 1.6rem;
        font-weight: 500;
        line-height: 2.2rem;
    }

    /* ORGANIZERS */

    .cardphoto:hover {
        border-color: var(--color-accent1);
    }

    /* PROGRAM */
    #program {
        padding-left: 7vw;
        padding-right: 7vw;
    }

    table {
        width: 100%;
        padding: 0rem;
    }

    th, td {
        border: 7px solid var(--color-accent2);
    }

    .tb-head {
        padding: 0.8rem;
        font-size: 2.3rem;
    }

    .col-week {
        padding: 0.5rem;
        font-size: 2.3rem;
    }

    .col-date, .col-place, .col-lunch {
        padding: 0.5rem;
        font-size: 2rem;
    }

    .col-time {
        padding-top: 0.5rem;
        padding-bottom: 0.5rem;

        font-size: 2rem;
    }

    .col-desc h3{
        padding-top: 1rem;
        padding-bottom: 0.7rem;
        padding-left: 3rem;
        padding-right: 1rem;

        font-size: 2rem;
    }

    .col-desc p, .col-desc ul{
        padding-left: 3rem;
        padding-right: 2rem;
        padding-top: 0rem;
        padding-bottom: 1.5rem;

        font-size: 1.5em;
    }

    tfoot tr td{
        padding-top: 1rem;
        padding-bottom: 1rem;
        padding-left: 2rem;
        padding-right: 1rem;

        column-count: 3;

        line-height: 1.4rem;
        text-align: left;
    }

    tfoot tr td p{
        padding: 0rem;
        font-size: 1.5rem;
        color: var(--color-grey);
    }

    /* VENUE */

    #venue {
        padding-bottom: 3rem;
    }

    .venue {
        margin: auto;
        padding-top: 1rem;
        /* width: 900px; */
        justify-content: center;
        flex-direction: row;
        align-items: start;
        height: 400px;
    }

    .contacts {
        display: flex;
        flex-direction: column;
        height: 400px;
        padding-bottom: 0rem;
    }

    .contact-icon {
        height: 2rem;
    }

    .address-icon {
        height: 2.3rem;
        padding-right: 1.5rem;
    }

    .contacts p{
        margin: 0;
        font-size: 1.2rem;
        line-height: 2rem;
    }

    .map {
        padding-left: 10vw;
        width: 400px;
        height: 400px;
    }

    .social-media {
        display: flex;
        flex-direction: row;
        justify-content: start;
        align-items: end;

        flex: 1;

        padding-left: 3rem;
    }

    .media-icon {
        width: 2em;
        padding-right: 1.2rem;
    }

    .rutube-icon{
        position: relative;
        bottom: 2px;
        width: 1.5rem;
        padding-right: 1.5rem;
    }

    .vk-icon {
        position: relative;
        top: 3px;
        width: 2.3rem;
        padding-right: 1.5rem;
    }

    /* FOOTER */

    .copywrite {
        padding-top: 1.5rem;
        padding-bottom: 1.5rem;
    }

    footer span{
        font-size: 1rem;
        padding-left: 3rem;
    }
}

@media (min-width: 1280px) {

    .row-menu button {
        font-size: 1.8rem;
    }

    .intro-row {
        justify-content: center;
    }

    .intro-title h1{
        font-size: 4.5rem;
        padding-right: 3vw;
    }

    .intro-title span{
        padding-top: 0.2rem;
        padding-bottom: 0.2rem;
        padding-left: 2.6rem;
        padding-right: 2.6rem;

        font-size: 3rem;

        border: 0.4rem;
        border-color: var(--color-accent3);
        border-style: solid;

        white-space: nowrap;
        vertical-align: 18%;
    } 

    .cards {
        width: auto;
    }

    .intro-img {
        display: block;
        width: 100%;
        max-width: 550px;
    }

    table {
        margin-top: 1rem;
    }

    #venue {
        padding-bottom: 4rem;
    }

    .venue {
        height: 500px;
    }

    .contacts {
        height: 500px;
    }

    .contact-box {
        padding-bottom: 2.3rem;
    }

    .contact-icon {
        height: 2.5rem;
        padding-right: 1.7rem;
    }

    .address-icon {
        height: 3rem;
        padding-right: 2rem;
    }

    .contacts p{
        font-size: 1.5rem;
        line-height: 2.4rem;
    }

    .social-media {
        padding-left: 4.3rem;
    }

    .media-icon {
        width: 2.7rem;;
        padding-right: 1.6rem;
    }

    .rutube-icon{
        position: relative;
        bottom: 4px;
        width: 2rem;
        padding-right: 1.8rem;
    }

    .vk-icon {
        position: relative;
        top: 3px;
        width: 3.2rem;
    }

    .map {
        /* padding-left: 8vw; */
        width: 500px;
        height: 500px;
    }

    .copywrite {
        padding-top: 1.8rem;
        padding-bottom: 1.8rem;
    }

    footer span{
        font-size: 1.2rem;
    }
}

@media (min-width: 1500px){
    #about {
        padding-left: 10vw;
        padding-right: 10vw;
    }
}

@media (min-width: 1900px){
    .cards {
        width: 1900px;
    }
}