/*-------  BASIC  -------*/
html {
    font-size: 20px;
    line-height: 26px;
}
body {
    font-family: 'Akrobat', sans-serif;
    font-weight: 600;
}

.content {
    padding-left: 1rem;
    padding-right: 1rem;
    margin: 0 auto;
}

#general, #contacts, #program, #organizers, #participation {
    padding: 45px 0;
}
#partners{
    padding-bottom: 60px;
}
#contacts {
    color: #fff;
    background-color: #171f54;
}
h1 {
    color: #12100B;
    font-size: 30px;
    font-weight: bold;
    text-align: center;
    text-transform: uppercase;
    margin-bottom: 30px;
}


/*-------  HEADER  -------*/
header {
    position: relative;
}
.info,
.nav {
    display: flex;
    flex-flow: row wrap;
    justify-content: flex-end;
    flex: 1;
    height: 52px;
    z-index: 2;
}
.info a, .nav a{
    text-decoration: none;
}


/*-------  LOGO  -------*/
.logo {
    display: flex;
    align-items: center;
    position: absolute;
    z-index: 1;
    top: 17px;
    left: 30px;
    height: 84px;
}

.logo_img{
    height: 82px;
    width: 88px;
    padding: 0 20px 0 0;
}

.logo_title {
    color: #171f54;
    font-weight: 800;
    text-transform: uppercase;
}

p{
    text-align: justify;
}



/*-------  INFO & NAV  -------*/
.info_calendar,
.info_tel, 
.info_email,
.info_net,
.nav .nav-link {
    display: flex;
    align-items: center;
    height: 52px;
    font-size: 16px;

}
.nav #menu,
.nav .mobile-nav {
    display: none;
}


/*-------  INFO  -------*/
.info {
    background: url('../img/line_blue.png');
    float: right;
    padding-left:50px;
    background-size: cover;
}

.info_calendar, .info .info_tel, .info_email, .info_net{
    padding-right: 35px;
    z-index: 1;
}
.phone, .email, .net, .calendar{
    color: #c9dded;
    margin-left:10px;
}


/*-------  NAV  -------*/
.nav {
    position: relative;
    background: url('../img/line_light_blue.png');
    margin-top: 25px;
    float: right;
    clear: right;
    padding-left: 55px;
    background-size: cover;
}

.nav a {
    color: #ebf1f8;
    font-size: 18px;
    text-transform: uppercase;
}

.nav a:hover,
.nav a:focus {
    text-decoration: underline;
}
.nav .nav-link {
    padding-right: 30px;
}


/*-------  BANNER  -------*/
#banner {
    position: relative;
}
#banner img {
    max-width: 100%;
    height: auto;
}


/*-------  GENERAL  -------*/

.general_title {
    font-size: 21px;
    margin-bottom: 50px;
    text-align: center;
    padding:0 10px;
}

.general_welcome, .general_goals {
    margin-bottom: 30px;
}

.content_subtitle{
    text-transform: uppercase;
    font-weight: bold;
}

.general_welcome p{
    margin-top: 30px;
}

.general_welcome .content_subtitle, .general_goals .content_subtitle{
    display: inline-block;
}

.general_link{
    font-weight: bold;
    color:black;
}

.general_reference{
    margin-top: 50px;
}

.general_reference h2{
    text-align: center;
    margin-bottom:30px;
    font-size: 30px;
}

.general_reference p {
    text-indent: 25px;
    margin-bottom:10px;
}

.reference_name{
    font-weight: bold;
}

.reference_photo-block{
    margin-bottom:50px;
}

.general_photo{
    height:350px;
    float:left;
    margin: 4px 20px 4px 25px;

}


/*------  PROGRAM  ------*/
#program {
    background: #b6cde6;
    color: #272251;
}

#program .content_title{
    color: #272251;
}

.program_meeting{
    margin-bottom: 40px;
}

.program_meeting .content_subtitle{
    display:inline-block;
}

.program_list {
    margin-bottom: 40px;
}

.program_list-item {
    display: flex;
    align-items: start;
}
.program_list-item img{
    padding-top: 10px;
}
.program_list-item span {
    padding-top: 7px;
    padding-left: 15px;
    display: inline-block;
}
.program_link{
    color:#272251;
    font-weight: bold;
}


/*------  ORGANIZERS  ------*/

#organizers{
    color:#1D1D1B;
}

.organizers_title{
    text-transform: uppercase;
    font-size: 30px;
    margin-bottom: 20px;
    text-align: center;
}

.main_organizers{
    margin-bottom: 60px;
}

.organizers_university{
    text-align: center;
    margin-top: 5px;
    text-transform: uppercase;
    font-weight: bold;
}

.organizers_department{
    text-align: center;
}

.organizers_university-logo{
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 50px 0;
}

.organizers_university-logo img:nth-child(1){
    height: 130px;
    margin-left:90px;
}

.organizers_university-logo img:nth-child(2){
    height: 90px;
    margin-left:90px;
}

.organizers_comitet{
    margin-bottom: 40px;
}

.comitet_title{
    font-size: 21px;
    margin-bottom: 25px;
    text-align: center;
}

.comitet_subtitle{
    margin-top: 20px;
}

.comitet_list{
    margin-bottom: 20px;
}

.comitet_list-item {
    list-style-type: disc;
}
.comitet_list-item::marker {
   color:#272251;
   font-size:32px;
}

.organizers_commission .comitet_list{
    margin-bottom: 20px;
}



/*-------  PARTICIPATION  -------*/
#participation{
    background: #aadcf6;
    color: #272251;
}

#participation .content_title{
    color: #272251;
}

.participation_block:not(:last-child){
    margin-bottom:30px;
}

.fee, .publications, .dates{
    padding-top:50px;
}

.dates{
    padding-bottom: 50px;
}

.fee-descr{
    margin-bottom:30px;
}

.fee-invoice{
    margin-bottom: 10px;
}

.fee-invoice span{
    text-decoration: underline;
    text-transform: uppercase;
    font-weight: bold;
}

.publications_links{
    display:flex;
    flex-direction: column;
    margin-top:20px;
}

#participation .registration_form {
    margin: 75px 0;
}

.registration_form {
    display: flex;
    align-items: center;
    justify-content: center;
}

.registration_form img{
    width: 30px;
}

.registration_form img:first-child {
    margin-right: 16px;
}

.registration_form img:last-child {
    transform: rotate(180deg);
    margin-left: 16px;
}

.registration_link {
    color: #272251;
    font-weight: 800;
    font-size: 26px;
    text-align:center;
}

.registration_link:not(:hover){
    text-decoration: none;
}




/*-------  PARTNERS  -------*/
.partners_row{
 display:flex;
 justify-content: center;
 /* align-items: end; */
 
}
.partners_row:not(:last-child){
   margin-bottom: 50px; 
}
.partner_item{
    width: 40%;
    display:flex;
    flex-direction: column;
    /* justify-content:space-between; */
    align-items: center;
}
.partner_item a{
   text-decoration: none;
   color:black;
   font-weight: bold;
}

.partner_name{
    margin-top:20px;
    text-align: center;
}

.partner_item img{
    height:110px;
}


/*-------  ARCHIVE  -------*/
.archive{
    padding: 50px 0;
    background: #b6cde6;
    color: #272251;
}

.archive .content_title{
    color: #272251;
}

.archive_item{
    margin-bottom: 30px;
}

.archive_title{
    margin-bottom:10px;
}

.archive_title a{
    font-weight: bold;
    color: #272251;
    text-decoration: none;
}

.archive_collection a{
    color:#272251;
}

.archive_photogallery, .photogallery_item{
    margin-top:20px;
}


/*-------  CONTACTS  -------*/
#contacts{
    font-weight: 400;
}
#contacts h1 {
    color: #fff;
}
#contacts a{
    text-decoration: none;
    color:#fff;
}
#contacts .contacts_link{
    text-decoration: underline;
}
.contacts_row{
    display:flex;
    justify-content:space-between;
}
.contact_name{
    margin-bottom:20px;
}
.contact_item{
    width:45%;
}
.contact_item:nth-child(2){
    text-align: end;
}

.politics{
    margin-top:30px;
}

#contacts .politics a{
    font-size: 14px;
}

#contacts .politics a:hover {
    text-decoration: underline;
}



/* media */
@media (min-width: 1200px){
    .logo_title {
        font-size: 16px;
    }
    header .nav .nav-link, header .info a {
        font-size: 14px;
    }
    .logo_img{
        width: auto;
        height:70px;
    }
}

@media (min-width: 1300px){
    .logo_title {
        font-size: 20px;
    }
}

@media (max-width: 1300px){
    .reference_photo-block{
        margin-bottom: 10px;
    }
}

@media (min-width: 1101px) and (max-width: 1199px){
    .logo_title {
        font-size: 15px;
    }
    header .nav .nav-link, header .info a {
        font-size: 12px;
    }
    .logo_img{
        width: auto;
        height:50px;
    }
}

@media (max-width: 1100px) {
    .logo {
        left: 15px;
    }
    .info_tel, .info_email, .info_net {
        display: none;
    }
    .info_calendar {
        padding-right: 30px;
    }

    header .nav .nav-link {
        display: none;
    }
    header .nav #menu {
        display: flex;
        background-color: transparent;
        padding: 0;
        border: none;
        outline: none;
        cursor: pointer;
        z-index: 1;
    }
    header .nav #menu span {
        display: flex;
        height: 52px;
        background: url(../img/menu_icon.png) center center / 35px 26px no-repeat;
        padding-left: 105px;
    }
    header .nav #menu.close span {
        background: url(../img/menu_close.png) center center / auto 46px no-repeat;
        padding-left: 105px;
    }
    header .nav .mobile-nav {
        position: absolute;
        top: 55px;
        z-index: 10;
        background: #aadcf6 none;
        border-radius: 6px 0 0 6px;
        min-width: 220px;
        text-align: right;
        padding: 10px 48px 10px 65px;
    }
    header .nav .mobile-nav a {
        color: #272251;
        display: flex;
        align-items: center;
        justify-content: flex-end;
        font-size: 18px;
        height: 38px;
        text-transform: uppercase;
    }
    header .nav .mobile-nav hr {
        border-color: #272251;
    }
}

@media (max-width: 750px) {
    .logo_title {
        width: 320px;
        font-size: 16px;
    }
    .logo_img{
        height: 65px;
        width: auto;
    }
}

@media (max-width: 500px){
    .general_photo{
        display:block;
        float:none;
        margin: 0 auto 20px;
        
    }
}

@media (min-width: 576px) {
    .content {
        max-width: 540px;
    }
}

@media (max-width: 600px) {
    .logo_img{
        width: auto;
        height: 84px;
    }
    .logo_title {
        display: none;
    }
    .partners_row, .contacts_row{
        flex-direction: column;
        align-items: center;
        margin-bottom: 20px;
    }
    .partner_item, .contact_item{
        width:100%;
        margin-bottom: 20px;    
    }
    .partner_item:nth-child(n){
        align-items: center;
    }
    .contact_item:nth-child(n){
        text-align: start;
    }
    .partner_name-first, .partner_name-second, .partner_name-third{
        text-align: center;
    }
    .contact_name{
        margin-top:20px;
    }
    .organizers_university-logo{
        flex-direction: column;
    }
    .organizers_university-logo img:nth-child(1) {
        height: 90px;
        margin: 0 0 30px;
    }
    .organizers_university-logo img:nth-child(2) {
        height: 70px;
        margin: 0;
    }
}

@media (max-width: 380px) {
    .info_calendar {
        font-size: 15px;
    }

    .info_calendar img{
        height: 20px;
    }
}

@media (max-width: 330px) {
    .logo_img {
        width:auto;
        height: 65px;
        padding-left:5px;
    }

    .info_calendar {
        font-size: 14px;
        padding-right: 10px;
    }
    header .nav .mobile-nav {
        padding: 10px 15px 10px 25px;
    }
}

@media (max-width: 400px) {
    .logo_img{
        width: auto;
        height:65px;
    }
    .info_calendar {
        font-size: 14px;
    }
    header .nav .mobile-nav {
        padding: 10px 15px 10px 25px;
    }
}

@media (min-width: 768px) {
    .content {
        max-width: 720px;
    }
    #contacts .row {
        justify-content: center;
        flex-direction: row;
    }
    #contacts .delimeter {
        display: block;
    }
}

@media (min-width: 992px) {
    .content {
        max-width: 960px;
    }
}


@media (min-width: 1200px) {
    .content {
        max-width: 1140px;
    }
}
@media (min-width: 1370px) {
    .content {
        max-width: 1300px;
    }
}

@media (min-width: 1500px) {
    .logo {
        left: 3vw;
    }
    .logo_title {
        font-size: 20px;
    }
    header .nav .nav-link, header .info a {
        font-size: 18px;
    }
}