/*root and html are seen in shadow dom!!!!*/
html {
  font-size: 20px;  /*базовый размер*/
  background-color: var(--bg-color);
}

:root {
  --bg-color: #ddd;
  --btn-border: #410707;
  --btn-pressed: #9b5903;
  --btn-unpressed: #ebb064;
  --btn-hover: #cc9317;
  --ref-unpressed-color: #028c00;
  --ref-pressed-color:red;

  --fnt_size:1rem;

  --size-Var: 8px;
  --txt-Color: #ffffff;
  --bor-Color: rgba(0, 0, 0, 0);
  --text-Primary: #4b4760;
  --text-Secondary: #7f7989;
  --border-Color: #cccccc;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

canvas{
  padding: 0px 0px 0px 0px;
  z-index: 10;
}

header {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  gap: 0px 5vw;
  align-items: center;
  width:fit-content;
  padding: 0px 20px 0px 20px;
  /*background-image: url("pushkin.png", #ccc);*/
}

nav {
  display: block;
}

.menueItemClass {
  padding: 3px 20px;
  font-size: calc(0.9*var(--fnt_size));
  /*  font-weight: bold;*/
  font-family: cursive;
  color: #000;
  margin: 0px 10px;
}

.menueClass {
  padding: 10px 0;
  margin: 1px 0 0;
  color: #000;
  font-size: calc(0.9*var(--fnt_size));
/*  font-weight: bold;*/
font-family: cursive;
}

.rowPhotos {
  display:flex;
  text-align:center;
  padding: 5px 5px;
  border-width: 0px;
}

main {/*
  font-size: var(--fnt_size);
  display: grid;
  grid-template-columns: 7fr 1fr;
  grid-template-rows: auto auto 72vh 6vh;
  grid-gap: 10px;*/
  /*border: solid var(--btn-border);*/
  display: flex;
  flex-direction: column;
  width: 100vw;
  height:100%;
}

iframe {
  width: 100%;
  height:100%;
}

.tableContactsClass th, .tableContactsClass td {
  border: groove #000;
  border-width: 2px;
}

.tableContactsClass th, .tableContactsClass td {
  padding: 5px 40px;
  margin: 0;
}

.tableContactsClass {
  align-content: center;
  width: 100vw;
}


html {
  height: 100%;
}

body {
  display:flex;
  flex-direction: column;
  justify-content: stretch;
  height: 100%;
  margin: 0;
  padding: 0;
}

body > .main {
  flex:1 1 auto;
}
body > nav {
  flex:1 0 auto;
  overflow-x: visible;
}

html, html>*{
  margin: 0;
  padding: 0;
}
body, body>*{
  margin: 0;
  padding: 0;
}

body{
  height: calc(99%);
  overflow-x: hidden;/*Иначе появляется толстый скролл по вертикали без бегунка*/
  overflow-y: hidden;/*Иначе появляется толстый скролл по вертикали без бегунка*/
}

#root{
  height: 100%;
}

main>div>div{
  display: flex;
  flex-direction: row;
  overflow: auto;
  /*
  for overflow need main>div{
  display: flex;
  */
}

main header{
  flex: 1 0 auto;
  height: fit-content;
}

main nav{
  flex: 1 0 auto;
  height: fit-content;
}

main>div{
  display: flex;
  flex: 1 1 auto;
  min-height: 0;
}



::-webkit-scrollbar-track {
	background-color: #fff; /*Цвет скролла*/
} 
::-webkit-scrollbar-thumb { 
	border-radius: 5px; /*Закругление ползунка*/
	background-color: #ccc; /*Цвет ползунка*/
} 
::-webkit-scrollbar { 
	width: 6px;  /*Толщина скролла*/
  height: 6px;
}


main footer{
  flex: 0 1 auto;
}

main aside{
  flex-grow: 1;
}

main article{
  overflow: scroll;
}



          /* �������� ���������� ������ �� ���������
     * � ������ ���������� ���������������� */
     /*
           nav div {
        display: none;
        position: absolute;
        top: 100%;
              left: 0%;
              
    }
    */

    /* ���������� ���������� ������ ��� ��������� */

          nav .toggle + .checkbox div {
        display:none;
    }
          
          /*nav .toggle:checked:hover + .checkbox menu{*/
          nav .toggle:checked + .checkbox:focus div,
          nav .toggle + .checkbox div:focus{
              display:block;  
    }

          
    
          /* �������� ���� ���� ��� ��������� ������� */
    nav label:hover, aside a:hover {
        background-color: var(--btn-hover);
      }
          
/*
          div[name=study_routine], div[name=achievments], div[name=international_contacts], div[name=extra_activities], 
          div[name=history], div[name=lectors], div[name=contacts], div[name=aside_study_routine]{
              display: none;
              visibility: none;
              
          }
*/
          aside ul{
              display: flex;
              flex-direction: row;
              /*width: max-content;
              /*width: fit-content;
              flex-direction: column;*/
              /*padding: 40px;*/
              padding-top: 2rem;
              flex-wrap: wrap;
          }

          aside li{
            display: block;
            /*width: fit-content;
            flex-direction: column;*/
            margin: 5px 10px 5px 10px;
          }

          aside a{
              font-size: calc(0.9*var(--fnt_size));
              font-weight: bold;
              margin: 5px;
              width: max-content;
            background: var(--btn-unpressed);
            border: groove var(--btn-border);
            border-width: 0px;
            /*border-color: darkslategrey;*/
            border-color: var(--btn-border);
            border-radius: 0.6rem;
            align-self: center;
            
          }





          nav fieldset {
        padding:0;
        margin:0;
        list-style: none;
        }
          
          nav label{
              user-select: none;
          }

          #positioned {
              position: relative;
          }

          nav label div{
              border:solid;
              border: 2px ridge var(--btn-border);
              /*border-width: 4px; 
              border-color: darkslategrey;*/
          }
          
          a, .checkbox {
              color: var(--ref-unpressed-color);
              text-decoration: none;
              font-weight: 500;
              font-family: "Open Sans",Helvetica,Arial,sans-serif;
              line-height: 1.6;
          }

         

          :checked + .checkbox{
             /* color: var(--ref-pressed-color);*/
             background: var(--btn-pressed);
          }

          .toggle{
              display:none;
          }

          p {
              text-indent: 50px;
          }

          footer{
              text-align: center;
              height: fit-content;
              border-top: 2px ridge #028c00;
          }

          footer div{
            padding-top: 10px;
          }



/*
          header{
              grid-column: 1 / 3;
              grid-row: 1;
              background-color: var(--bg-color);
          }

          nav{
              grid-column: 1 / 3;
              grid-row: 2;
          }

          article{
              grid-column: 1;
              grid-row: 3;
              overflow: scroll;
          }

          aside{
              grid-column: 2;
              grid-row: 3;
          }

          footer{
              grid-column: 1 / 3;
              grid-row: 4;
          }
          */
/*
          :root {
              --scrollbar-track-color: transparent;
              --scrollbar-color: rgba(0,0,0,.2);
            
              --scrollbar-size: .375rem;
              --scrollbar-minlength: 1.5rem; /* ����������� ����� ������� ���������� (������ ���������������, ������ �������������) */
/*              }
            .overflowing-element::-webkit-scrollbar {
              height: var(--scrollbar-size);
              width: var(--scrollbar-size);
            }
            .overflowing-element::-webkit-scrollbar-track {
              background-color: var(--scrollbar-track-color);
            }
            .overflowing-element::-webkit-scrollbar-thumb {
              background-color: var(--scrollbar-color);
              /* ���� ����� - �������� :hover �:active */
/*              }
            .overflowing-element::-webkit-scrollbar-thumb:vertical {
              min-height: var(--scrollbar-minlength);
            }
            .overflowing-element::-webkit-scrollbar-thumb:horizontal {
              min-width: var(--scrollbar-minlength);
            }
*/
/*
            :root {
              --scrollbar-track-color: transparent;
              --scrollbar-color: rgba(0,0,0,.2);
            
              --scrollbar-width: auto; /* or `auto` or `none` */
              /*
            }
            .overflowing-element {
              scrollbar-width: var(--scrollbar-width); 
              scrollbar-color: var(--scrollbar-color) var(--scrollbar-track-color);
            }
*/
            #lectors_JSON img{
                object-fit: cover;
                object-fit: scale-down;
            }
            #lectors_JSON{
                display: flex;
                flex-direction: row;
                flex-wrap: wrap;
                padding: 20px 20px 20px 20px ;
                gap: 20px;
                justify-content: center;
            }
            #lectors_JSON div{
              display: flex;
              flex-direction: row;
              flex-wrap: wrap;
              padding: 10px 10px 10px 10px ;
              width: min-content;
              border: 6px ridge #028c00;
          }
          #lectors_JSON div>p{
              width: fit-content;
          }

          #cabs_JSON{
              display: flex;
              flex-direction: row;
              flex-wrap: wrap;
              padding: 20px 20px 20px 20px ;
              gap: 20px;
              justify-content: center;
              border-width: 0px;
          }
          #cabs_JSON div{
              padding: 20px 20px 20px 20px ;
              border: 2px solid #028c00;
          }

          article h2, article h3{
              text-align: center;
          }

          article{
              padding: 10px 40px 10px 40px;
          }

/*
article p{
  display: block;
}
*/

          #extra_JSON>li{
              display: flex;
              gap:20px;
              align-items: center;
              /*border: 2px solid #028c00;*/
          }

          .text-class img{
              /*max-width: 300px;*/
              width: 20rem;
              object-fit: scale-down;
              padding: 0vw 0vw 0vh 0vw;
          }

          .text-class>div{
              display:flex;
              flex-direction: row;
              gap:20px;
              flex-wrap: wrap;  
              justify-content: center;
              /*border:2px solid green;*/
              clear:both
          }

          .text-class>div>div{
              flex:1 1 0;
              display: flex;
              flex-direction: column;
              min-width: 20rem;
              flex-basis: 48%;
              justify-content: center;
              align-items: center;
              /*border:2px solid black;*/
          }

          .text-class p{
            text-align:justify;
        }

        .text-class ul{
          flex:1 1 0;
          text-align:left;
      }

          
      .text-class>img{
              float:right;
              margin: 10px 40px 40px 40px;
              object-fit: scale-down;
              padding: calc(var(--fnt_size) * 0);
              border: 2px solid #028c00;
              max-width:100%;
          }

            .classBtnSwch{
              font-family: "Roboto", sans-serif;
              font-size: calc(var(--size-Var) * 1.75);
              font-weight: 500;
              border: none;
              outline: none;
              padding: var(--size-Var) calc(var(--size-Var) * 2);
              border-radius: calc(var(--sizeVar) / 2);
              cursor: pointer;
              background-color: var(--btn-unpressed);
              color: var(--txt-Color);
              box-shadow: 0 0 0 1px var(--btn-border) inset;
              margin: 10px;
            }

            button:focus {
              --btn-border: var(--btn-pressed);
            }
            button:hover {
              --btn-unpressed: var(--btn-hover);
            }
            .sec_btn:hover {
              --btn-unpressed: var(--btn-hover);
            }
            .tri_btn:hover {
              --btn-unpressed: var(--btn-hover);
            }
            button:active {
              --btn-unpressed: var(--btn-pressed);
            }

            canvas {
              object-fit: cover;
              padding: 40px;
            }