/*
* Prefixed by https://autoprefixer.github.io
* PostCSS: v8.4.14,
* Autoprefixer: v10.4.7
* Browsers: last 4 version
*/

html{
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  font-size: 62.5%; /* 10*/
}
*,*:after, *:before{
  -webkit-box-sizing: inherit;
          box-sizing: inherit;
}
body{
  line-height: 1.6;
  font-family: "Roboto", sans-serif, Arial;
  font-size: 1.6rem;
  
}
/*
======================
component, startup page
======================
*/
.sec1 {
  width: 100%;
  height: 100vh;
  background-size: cover;
  background-color: transparent;
  position: fixed;
  overflow: hidden; 
  display: block;
  z-index: 500;
  opacity: 1;
  -webkit-transition: opacity 1s ease;
  -o-transition: opacity 1s ease;
  transition: opacity 1s ease;
  -webkit-animation: sec1 4s 1 7s linear forwards;
          animation: sec1 4s 1 7s linear forwards;
}
@-webkit-keyframes sec1 {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}
@keyframes sec1 {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}




.startlogo {
  width: 13%;
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
      -ms-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%); 
  z-index: 1000;
  -webkit-animation: logo 4s 1 1s linear forwards;
          animation: logo 4s 1 1s linear forwards;
  opacity: 0;
}
@-webkit-keyframes
  logo{
    0%{opacity: 0;}
    50%{opacity: 1;} 
    100%{opacity: 0;}
    }
@keyframes
  logo{
    0%{opacity: 0;}
    50%{opacity: 1;} 
    100%{opacity: 0;}
    } 

html.fade-in {
  opacity: 0;
  -webkit-transition: opacity 1s ease-in;
  -o-transition: opacity 1s ease-in;
  transition: opacity 1s ease-in;
}

html.visible {
  opacity: 1;
}
      
    /*
======================
 startup page 1
======================
*/

.container {
  width: 100%;
  max-width: 1500px;
  margin-right: auto;
  margin-left: auto;
 
  
  
}
.sec2{
  
  height: 100vh;
  background-size: cover;
  width: 100%;
  position: relative;
  overflow: hidden;
  z-index: 500;
  opacity: 1;

}
 

.slideshow-container {
  position: absolute;
  top: 0;
  left: 0;
  height: 100vh;
  width: 100%;
  overflow: hidden;
  z-index: -1;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  -o-object-fit: cover;
     object-fit: cover;
  opacity: 0;
  -webkit-transition: opacity 2s ease-in-out;
  -o-transition: opacity 2s ease-in-out;
  transition: opacity 2s ease-in-out;
}

.slide.active {
  opacity: 1;
  z-index: 1;
}


  .image{
    width: 100%;
    height: 100vh;
    position: absolute;
    
    background: url(/img/Banner\ 1.jpg) no-repeat center center;
    background-size: cover;
    z-index: -1;
    
    animation: slideshow 40s 6.5s alternate-reverse infinite;
  }
  @-webkit-keyframes slideshow {
    0% { background-image: url("/img/Banner 1.jpg");opacity: 1; }
    25% { background-image: url("/img/Banner 2.jpg");opacity: 1;  }
    50% { background-image: url("/img/Banner 3.jpg");opacity: 1; }
    75% { background-image: url("/img/Banner 4.jpg");opacity: 1; }
    100% { background-image: url("/img/Banner 1.jpg");opacity: 1;}
    }
  @keyframes slideshow {
    0% { background-image: url("/img/Banner 1.jpg");opacity: 1; }
    25% { background-image: url("/img/Banner 2.jpg");opacity: 1;  }
    50% { background-image: url("/img/Banner 3.jpg");opacity: 1; }
    75% { background-image: url("/img/Banner 4.jpg");opacity: 1; }
    100% { background-image: url("/img/Banner 1.jpg");opacity: 1;}
    }
  


.menu{
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  padding: 0;
  margin: 0;
  list-style: none;
  
}
 .menu_item{
    -webkit-box-flex: 1;
        -ms-flex: 1;
            flex: 1; 
  min-width: 120px; 
  height: 13rem;
  border: thin solid rgba(255, 255, 255, 0.171);
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  background-color: rgba(32, 32, 32, 0.231);
     -webkit-transform: translateX(-30px);
         -ms-transform: translateX(-30px);
             transform: translateX(-30px);
  opacity: 0;
 -webkit-transition: opacity 0.10s ease, -webkit-transform 0.6s ease;
 transition: opacity 0.10s ease, -webkit-transform 0.6s ease;
 -o-transition: opacity 0.10s ease, transform 0.6s ease;
 transition: opacity 0.10s ease, transform 0.6s ease;
 transition: opacity 0.10s ease, transform 0.6s ease, -webkit-transform 0.6s ease;
   

 }
 .menu_item.show {
  -webkit-transform: translateX(0);
      -ms-transform: translateX(0);
          transform: translateX(0);
  opacity: 1;
}
 .menu_item:hover{
  background-color: rgba(138, 138, 138, 0.34);
  -webkit-transition: all 0.3s ease-in-out;
  -o-transition: all 0.3s ease-in-out;
  transition: all 0.3s ease-in-out;
  
 }

.menu_link{
   text-decoration: none;
   color: white;
   font-size: 1.8rem; 
   padding: 4rem; 
   
}
.menu_link:hover{
  color: rgba(192, 192, 192, 0.642);
 
  -webkit-transition: all 0.3s ease-in-out;
 
  -o-transition: all 0.3s ease-in-out;
 
  transition: all 0.3s ease-in-out;
  
 }



.logoimag{
  width: 125px;
  
}
.navbar{
  width: 100%;
 
  margin-right: auto;
  margin-left: auto;
  padding-left: 0;
  padding-right: 0;
   
  
}

/* hamburger_menu*/

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

.hamburger-icon {
  width: 25px;
  height: 20px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  cursor: pointer;
  position: relative;
  z-index: 3000; 
}

.line {
  width: 100%;
  height: 3px;
  background-color: #ffffff;
  border-radius: 2px;
  -webkit-transition: 0.4s ease;
  -o-transition: 0.4s ease;
  transition: 0.4s ease;
  position: relative;
}

input {
  display: none;
}


input:checked + .hamburger-icon .line:nth-child(1) {
  -webkit-transform: rotate(45deg) translate(5px, 5px);
      -ms-transform: rotate(45deg) translate(5px, 5px);
          transform: rotate(45deg) translate(5px, 5px);
}
input:checked + .hamburger-icon .line:nth-child(2) {
  opacity: 0;
}
input:checked + .hamburger-icon .line:nth-child(3) {
  -webkit-transform: rotate(-45deg) translate(6px, -6px);
      -ms-transform: rotate(-45deg) translate(6px, -6px);
          transform: rotate(-45deg) translate(6px, -6px);
}




.menuhamburger {
  width: 100%;
  height: 100vh;
  background-color: rgb(32, 32, 32);
  position: fixed;
  top: 0;
  right: -100%;
  border: none;
  -webkit-transition: 0.5s ease;
  -o-transition: 0.5s ease;
  transition: 0.5s ease;
}
.hamburger-menu{
  display: none;
   display: -webkit-box;
   display: -ms-flexbox;
   display: flex;
  -webkit-box-pack: start;
      -ms-flex-pack: start;
          justify-content: flex-start;
  
  -webkit-box-align: center;
  
      -ms-flex-align: center;
  
          align-items: center;
}


.hamburger-ul{
  width: 100%;
  line-height: 6rem;
  text-align: center;
  list-style: none;
  padding-left: 0;
  margin: 0;
  margin-top: 2.5rem;
      padding-top: 3rem;
  
  
}


  .hamburger-li {
    border-bottom:  solid rgba(255, 255, 255, 0.048);
   
}
.link_hamburger {
   width: 100%;
  padding: 2rem; 
  text-decoration: none;
  color: rgb(255, 255, 255);
    font-family: "Roboto-Regular";
     font-size: 1.5rem;
}

input:checked ~ .menuhamburger {
  right: 0;
}
.hamburger_container{
  display: none;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  direction: rtl;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
   padding: 0 2rem;
  width: 100%;
  height: 5rem;
  position: fixed;
  z-index: 3000;
  background-color: rgba(32, 32, 32, 0.877);
  
  }
  .hamburger-menu-wrapper {
  -webkit-box-ordinal-group: 2;
      -ms-flex-order: 1;
          order: 1; 
  
}
    .flag-hamburger_container {
      width: 3rem;
      height: auto;
      cursor: pointer;
      -webkit-transition: -webkit-transform 0.3s ease;
      transition: -webkit-transform 0.3s ease;
      -o-transition: transform 0.3s ease;
      transition: transform 0.3s ease;
      transition: transform 0.3s ease, -webkit-transform 0.3s ease;
      -webkit-box-ordinal-group: 4;
          -ms-flex-order: 3;
              order: 3;
      margin-top: 1rem;
      
    }


    .hamburger-logo{
        -webkit-box-ordinal-group: 3;
            -ms-flex-order: 2;
                order: 2;
          width:6rem;
    text-decoration: none;
    list-style: none;
    margin-top: 1rem;
    
      }


    
.hamburger-li {
  opacity: 0;
  -webkit-transform: translateX(50px);
      -ms-transform: translateX(50px);
          transform: translateX(50px);
  -webkit-transition: all 0.5s ease;
  -o-transition: all 0.5s ease;
  transition: all 0.5s ease;
}


input:checked ~ .menuhamburger .hamburger-li {
  opacity: 1;
  -webkit-transform: translateX(0);
      -ms-transform: translateX(0);
          transform: translateX(0);
}


input:checked ~ .menuhamburger .hamburger-li:nth-child(1) {
  -webkit-transition-delay: 0.1s;
       -o-transition-delay: 0.1s;
          transition-delay: 0.1s;
}
input:checked ~ .menuhamburger .hamburger-li:nth-child(2) {
  -webkit-transition-delay: 0.2s;
       -o-transition-delay: 0.2s;
          transition-delay: 0.2s;
}
input:checked ~ .menuhamburger .hamburger-li:nth-child(3) {
  -webkit-transition-delay: 0.3s;
       -o-transition-delay: 0.3s;
          transition-delay: 0.3s;
}
input:checked ~ .menuhamburger .hamburger-li:nth-child(4) {
  -webkit-transition-delay: 0.4s;
       -o-transition-delay: 0.4s;
          transition-delay: 0.4s;
}
input:checked ~ .menuhamburger .hamburger-li:nth-child(5) {
  -webkit-transition-delay: 0.5s;
       -o-transition-delay: 0.5s;
          transition-delay: 0.5s;
}
input:checked ~ .menuhamburger .hamburger-li:nth-child(6) {
  -webkit-transition-delay: 0.6s;
       -o-transition-delay: 0.6s;
          transition-delay: 0.6s;
}
input:checked ~ .menuhamburger .hamburger-li:nth-child(7) {
  -webkit-transition-delay: 0.7s;
       -o-transition-delay: 0.7s;
          transition-delay: 0.7s;
}

              /*
======================
 Menu-hamburger----projects
======================
*/


.menuhamburger_projects {
  width: 30rem;
  height: 100vh;
  position: fixed;
  top: 0;
  right: -100%;
  border: none;
  background-color: #02615cff;
  -webkit-transition: right 0.5s ease;
  -o-transition: right 0.5s ease;
  transition: right 0.5s ease;
  z-index: 2000;
  overflow-y: auto;
  padding-top: 0;
}


input:checked ~ .menuhamburger_projects {
  right: 0;
}


.menuhamburger_projects .hamburger-li {
  opacity: 0;
  -webkit-transform: translateX(50px);
      -ms-transform: translateX(50px);
          transform: translateX(50px);
  -webkit-transition: all 0.5s ease;
  -o-transition: all 0.5s ease;
  transition: all 0.5s ease;
  list-style: none;
  margin-bottom: 1rem;
}


input:checked ~ .menuhamburger_projects .hamburger-li {
  opacity: 1;
  -webkit-transform: translateX(0);
      -ms-transform: translateX(0);
          transform: translateX(0);
}


input:checked ~ .menuhamburger_projects .hamburger-li:nth-child(1) {
  -webkit-transition-delay: 0.1s;
       -o-transition-delay: 0.1s;
          transition-delay: 0.1s;
}
input:checked ~ .menuhamburger_projects .hamburger-li:nth-child(2) {
  -webkit-transition-delay: 0.2s;
       -o-transition-delay: 0.2s;
          transition-delay: 0.2s;
}
input:checked ~ .menuhamburger_projects .hamburger-li:nth-child(3) {
  -webkit-transition-delay: 0.3s;
       -o-transition-delay: 0.3s;
          transition-delay: 0.3s;
}
input:checked ~ .menuhamburger_projects .hamburger-li:nth-child(4) {
  -webkit-transition-delay: 0.4s;
       -o-transition-delay: 0.4s;
          transition-delay: 0.4s;
}
input:checked ~ .menuhamburger_projects .hamburger-li:nth-child(5) {
  -webkit-transition-delay: 0.5s;
       -o-transition-delay: 0.5s;
          transition-delay: 0.5s;
}
input:checked ~ .menuhamburger_projects .hamburger-li:nth-child(6) {
  -webkit-transition-delay: 0.6s;
       -o-transition-delay: 0.6s;
          transition-delay: 0.6s;
}


.menuhamburger_projects .link_hamburger {

  text-decoration: none;
  color: #fff;
  padding: 1rem 2rem;
  font-size: 1.5rem;
    font-family: "Roboto-Regular";
}





      
   
    
    /*
======================
 startup page project
======================
*/

.navbar_projects{
  width: 100%;

  margin-right: auto;
  margin-left: auto;
  padding-left: 0;
  padding-right: 0;
  position: fixed;
  z-index: 1000;
   
  
}
.menu_projects{
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  padding-left: 0;
  opacity: 0; 
  margin: 0rem; 
    -ms-flex-wrap: wrap; 
        flex-wrap: wrap;
  list-style: none;
   -webkit-animation: menuproject 1s 1 1ms linear forwards;
           animation: menuproject 1s 1 1ms linear forwards;
}
 
  @-webkit-keyframes menuproject{
    from{
       opacity: 0; 
       
        
    }
    to{
       opacity: 1; 
       
       
    }
  
}
 
  @keyframes menuproject{
    from{
       opacity: 0; 
       
        
    }
    to{
       opacity: 1; 
       
       
    }
  
}
  
  

 .menu_item_projects{
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1; 
  min-width: 120px; 
  height: 14rem;
  border:  solid rgba(141, 140, 140, 0.502);
  background-color: #02615cff;
  border-width: thin;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
    -webkit-transition: all 0.3s ease-in-out;
    -o-transition: all 0.3s ease-in-out;
    transition: all 0.3s ease-in-out;
  
   

 }

.menu_projects{
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  padding-left: 0;
  margin: 0;
  list-style: none;
  
  
}

 .menu_item_projects:hover{
  background-color:rgb(3, 128, 121);
  -webkit-transition: all 0.3s ease-in-out;
  -o-transition: all 0.3s ease-in-out;
  transition: all 0.3s ease-in-out;
  
 }

.menu_link_projects{
   text-decoration: none;
   color: white;
   font-size:1.8rem; 
   padding: 4rem; 
   text-align: center;
   
}
.menu_link_projects:hover{
  color: rgba(255, 255, 255, 0.642);
 
  -webkit-transition: all 0.3s ease-in-out;
 
  -o-transition: all 0.3s ease-in-out;
 
  transition: all 0.3s ease-in-out;
  
 }
/*
======================
Languege--header
======================
*/



.submenu {
  display: block;
  position: absolute;
  opacity: 0;
  padding: 5px;
  border-radius: 5px;
  margin-top: 5px;
  right: 0; 
          -webkit-animation: flag 0.2s 1 1.5s linear forwards; 
                  animation: flag 0.2s 1 1.5s linear forwards;
}


@-webkit-keyframes flag {
  from {
    opacity: 0;
          
  }
  to {
    opacity: 1;
   
                
  }
  }


@keyframes flag {
  from {
    opacity: 0;
          
  }
  to {
    opacity: 1;
   
                
  }
  }



.menu_item_about:hover .submenu {
  display: block;
}

.submenu li {
  list-style: none;
}

.flag {
  width: 30px;
  height: auto;
  cursor: pointer;
  -webkit-transition: -webkit-transform 1.6s ease;
  transition: -webkit-transform 1.6s ease;
  -o-transition: transform 1.6s ease;
  transition: transform 1.6s ease;
  transition: transform 1.6s ease, -webkit-transform 1.6s ease;
}


.lang-link:hover .flag {
  content: url("../img/flags/iranflag.svg");
  -webkit-transition: -webkit-transform 1.6s ease;
  transition: -webkit-transform 1.6s ease;
  -o-transition: transform 1.6s ease;
  transition: transform 1.6s ease;
  transition: transform 1.6s ease, -webkit-transform 1.6s ease;
}



/*
======================
sec_projects1--header
======================
*/

.sec_projects1{
  width: 100%;
   min-height: 100vh;
 
 
 
}
body {
  margin: 0;
  -webkit-transition: background 1s ease;
  -o-transition: background 1s ease;
  transition: background 1s ease;
  
}


.header-wrapper{
  text-align: center;
  color: white;
  
  padding-top: 20rem;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;

}

.header-project{
  text-align: center;
  color: white;
  
  padding-top: 15rem;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;

}

.project_title{
  font-size: 3rem;
  color: white;
  margin-left: 0rem;
  margin-top: 2rem;
  
}
  .lang-switcher {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  width: 50%;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  
  
  
}
.header-scrool{
  display: none;
}

.wrapperhome_title{
  
  font-size: 10rem;
  color: white;
  width: 100%;
  margin-top: 20rem;
  opacity: 0;
  
          -webkit-animation: ti 0.2s 1 2s linear forwards;
  
                  animation: ti 0.2s 1 2s linear forwards;
}


@-webkit-keyframes ti {
  from {
    opacity: 0;
    margin-left: 0rem;          
  }
  to {
    opacity: 1;
    margin-left: 10rem;
                
  }
}


@keyframes ti {
  from {
    opacity: 0;
    margin-left: 0rem;          
  }
  to {
    opacity: 1;
    margin-left: 10rem;
                
  }
}
.wrapperhome__subtitle{
 
  margin: 0 auto;
 
    font-size: 4rem;
  color: white;
  margin-left: 0rem;
  margin-top: 1rem;
 
  opacity: 0;
  
          -webkit-animation: tis 0.2s 1 2.5s linear forwards;
  
                  animation: tis 0.2s 1 2.5s linear forwards;
}

@-webkit-keyframes tis {
  from {
    opacity: 0;
    margin-left: 0rem;          
  }
  to {
    opacity: 1;
    margin-left: 10rem;
                
  }
}

@keyframes tis {
  from {
    opacity: 0;
    margin-left: 0rem;          
  }
  to {
    opacity: 1;
    margin-left: 10rem;
                
  }
}
html {
  scroll-behavior: smooth;
}


/*
======================
main-ui-pic
======================
*/

.wrapper_title{
  
  font-size: 3rem;
  color: white;
  margin-left: 0rem;
  margin-top: 2rem;
 
}




.main{
  width: 100%;
  
  display: -webkit-box;
  
  display: -ms-flexbox;
  
  display: flex;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: normal;
      -ms-flex-direction: row;
          flex-direction: row;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
   -ms-flex-wrap: wrap;
       flex-wrap: wrap;
   margin-top: 2rem;
   margin-bottom: 10rem;
  
 
}


  .video-scrool{
    display: none;
  }
  .ui-projects{ 
    width: 244px;
    height: 230px;
   border: #ffffff80 solid 1px;
  margin-left: 2rem;
  margin-top: 2rem;
   opacity: 0;
  -webkit-transform: translateX(-40px);
      -ms-transform: translateX(-40px);
          transform: translateX(-40px);
-webkit-transition: opacity 1.5s ease-in-out,
            -webkit-transform 1.5s cubic-bezier(0.33, 1, 0.68, 1);
transition: opacity 1.5s ease-in-out,
            -webkit-transform 1.5s cubic-bezier(0.33, 1, 0.68, 1);
-o-transition: transform 1.5s cubic-bezier(0.33, 1, 0.68, 1),
            opacity 1.5s ease-in-out;
transition: transform 1.5s cubic-bezier(0.33, 1, 0.68, 1),
            opacity 1.5s ease-in-out;
transition: transform 1.5s cubic-bezier(0.33, 1, 0.68, 1),
            opacity 1.5s ease-in-out,
            -webkit-transform 1.5s cubic-bezier(0.33, 1, 0.68, 1);
 
  }
  .ui-projects.show {
  opacity: 1;
  -webkit-transform: translateX(0);
      -ms-transform: translateX(0);
          transform: translateX(0);
}


 
  .ui-projects:hover {
    background-color: rgba(0, 0, 0, 0.436);
    border: black;
    
    -webkit-transition: all 0.5s ease-in-out;
    
    -o-transition: all 0.5s ease-in-out;
    
    transition: all 0.5s ease-in-out;
  }
 .ui-projects.visible {
  opacity: 1;
  -webkit-transform: translateX(0);
      -ms-transform: translateX(0);
          transform: translateX(0);
}
 

  .img_projects:hover {
  -webkit-filter: grayscale(0%);
          filter: grayscale(0%);
  -webkit-transition: all 0.5s ease-in-out;
  -o-transition: all 0.5s ease-in-out;
  transition: all 0.5s ease-in-out;
}

 

  .ui-projects_subtext{
    color: white;
    margin-left: 1rem;
    font-size: 1.2rem;
    margin-top:1rem ;
 
  }
  .projects_text{
    color: rgb(175, 175, 175);
    margin-left: 1rem;
    
    font-size: 1.2rem;
   
  }
  .projects_text_area{
    color: rgb(175, 175, 175);
    margin-left: 1rem;
    font-size: 1.2rem;
    
  }
  


  .img_projects {

    width: 242px;
  -webkit-filter: grayscale(70%);
          filter: grayscale(70%);
  -webkit-transition: -webkit-filter 0.4s ease;
  transition: -webkit-filter 0.4s ease;
  -o-transition: filter 0.4s ease;
  transition: filter 0.4s ease;
  transition: filter 0.4s ease, -webkit-filter 0.4s ease;
  cursor: pointer;
}
.img_projects:hover {
  -webkit-filter: grayscale(0%);
          filter: grayscale(0%);
}

/* ----- elevator FIXED styles ----- */

.elevator-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: #00a8a0; 
  border: none;
  padding: 12px;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  -webkit-transition: opacity 0.3s ease, -webkit-transform 0.3s ease;
  transition: opacity 0.3s ease, -webkit-transform 0.3s ease;
  -o-transition: opacity 0.3s ease, transform 0.3s ease;
  transition: opacity 0.3s ease, transform 0.3s ease;
  transition: opacity 0.3s ease, transform 0.3s ease, -webkit-transform 0.3s ease;
 
}

.elevator-btn.show {
  opacity: 1;
  pointer-events: auto;
  -webkit-transform: scale(1);
      -ms-transform: scale(1);
          transform: scale(1);
}

.elevator-btn:hover {
  background-color: #00c7bd;
}

.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 45px;
  height: 45px;
  background: #8f8f8f;
  color: white;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  font-size: 20px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  opacity: 0;
   padding: 12px;
  pointer-events: none;
  -webkit-transition: all 0.4s ease;
  -o-transition: all 0.4s ease;
  transition: all 0.4s ease;
  z-index: 9999;
}

.back-to-top.show {
  opacity: 0.9;
  pointer-events: auto;
}

.back-to-top:hover {
  opacity: 1;
  -webkit-transform: translateY(-4px);
      -ms-transform: translateY(-4px);
          transform: translateY(-4px);
}




/* ----- Lightbox FIXED styles ----- */
.glass {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.85);
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  opacity: 0;
  pointer-events: none;
  -webkit-transition: opacity 0.4s ease;
  -o-transition: opacity 0.4s ease;
  transition: opacity 0.4s ease;
  z-index: 1000;
}

.glass.show {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  width: 80%;
  max-width: 1000px;
  background: #fff;
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  -webkit-transform: scale(0.8);
      -ms-transform: scale(0.8);
          transform: scale(0.8);
  opacity: 0;
  -webkit-transition: all 0.4s ease;
  -o-transition: all 0.4s ease;
  transition: all 0.4s ease;
}

.glass.show .modal {
  -webkit-transform: scale(1);
      -ms-transform: scale(1);
          transform: scale(1);
  opacity: 1;
}

.modal-caption {
  padding: 1rem;
  font-size: 1.8rem;
  color: #ffffff;
  text-align: center;
  background: #000000;
  font-family: "Roboto", sans-serif;
}
.modal img {
  width: 100%;
  display: block;
}

.close {
  position: absolute;
  top: 10px;
  right: 20px;
  font-size: 40px;
  color: rgb(228, 21, 93);
  
  font-weight: bold;
  cursor: pointer;
}
.modal button {
  position: absolute;
  top: 50%;
  -webkit-transform: translateY(-50%);
      -ms-transform: translateY(-50%);
          transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  color: white;
  border: none;
  font-size: 24px;
  padding: 10px;
  cursor: pointer;
  z-index: 10;
}
.prev {
  left: 10px;
}
.next {
  right: 10px;
}
.hidden {
  display: none !important;
}

/* ----- Department FIXED styles ----- */
/* ----- about FIXED styles ----- */



    .about-text {
      font-size: 2rem;
      line-height: 2.8rem;
      color:#333;
      line-height: 4rem;
      padding: 2rem;
      
       font-family: "Roboto-Regular";
    }
     .section-title {
      font-size: 4rem;
      margin-bottom: 4rem;
      text-align: center;
      color: #333;
      
       
    }

.about {
  width: 100%;
  height: 100vh;
  background: url(../img/backgraunds/about-backgraund.jpg) no-repeat center center;
  background-size: cover;
  position: relative;
 
    opacity: 0;
  -webkit-transition: opacity 1s ease-in-out;
  -o-transition: opacity 1s ease-in-out;
  transition: opacity 1s ease-in-out;
}
.aboutfarsi{
    width: 100%;
  height: 100vh;
    background: url(../img/backgraunds/about-backgraund-01.jpg) no-repeat center center;
  background-size: cover;
   position: relative;
   
    opacity: 0;
  -webkit-transition: opacity 1s ease-in-out;
  -o-transition: opacity 1s ease-in-out;
  transition: opacity 1s ease-in-out;
  
}

.aboutfarsi.loaded {
  opacity: 1;
}

.about.loaded {
  opacity: 1;
}
.departmen_background {
  width: 100%;
  height: 100vh;
 
  background: url(../img/backgraunds/department-backgraund.jpg) no-repeat center center;
  background-color: #ffffff;
  background-size: cover;

}
.main-about {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  
}

.team-section {
  width: 100%;
  margin-top: 5rem;
}
.about_subtitle {
  font-size: 2.5rem;
  text-align:left;
  color: #565656;
   margin-bottom: 0.5rem;
   padding: 2rem;
   font-weight: 700;
  font-family: "Roboto-medium";
}

.team-grid {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  gap: 30px;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  margin-bottom: 10rem;
}

.team-card {
  width: 276px;
  text-align: center;
  border-radius: 1rem;
  overflow: hidden;
  background-color: #ffffff00;
  cursor: pointer;

   opacity: 0;
  -webkit-transform: translateY(40px);
      -ms-transform: translateY(40px);
          transform: translateY(40px);
  -webkit-transition: all 0.6s ease-out;
  -o-transition: all 0.6s ease-out;
  transition: all 0.6s ease-out;
  margin-top: 2rem;
}

.team-card.in-view {
  opacity: 1;
  -webkit-transform: translateY(0);
      -ms-transform: translateY(0);
          transform: translateY(0);
}
.team-card:hover {
  
  -webkit-box-shadow: #565656;
  
          box-shadow: #565656;
  background-color: #ffffff00;
  -webkit-transition: 500ms ease-in-out;
  -o-transition: 500ms ease-in-out;
  transition: 500ms ease-in-out;
  
}

.title-about {
  text-align: center;
  font-size: 10rem;
  color: #cacaca;
  margin-top: -70px;
  
  font-family: "Roboto-Medium";
}

.team-card img {
  width: 100%;
  height: auto;
  
  -webkit-transition: -webkit-transform 0.4s ease;
  
  transition: -webkit-transform 0.4s ease;
  
  -o-transition: transform 0.4s ease;
  
  transition: transform 0.4s ease;
  
  transition: transform 0.4s ease, -webkit-transform 0.4s ease;
}

.team-card:hover img {
  -webkit-transform: scale(1.05);
      -ms-transform: scale(1.05);
          transform: scale(1.05);
  -webkit-transition: -webkit-transform 0.4s ease;
  transition: -webkit-transform 0.4s ease;
  -o-transition: transform 0.4s ease;
  transition: transform 0.4s ease;
  transition: transform 0.4s ease, -webkit-transform 0.4s ease; 
}

.team-card .info {
  padding: 8px;
  color: #7c7c7c;
  -webkit-transition: all 0.5s ease-in-out;
  -o-transition: all 0.5s ease-in-out;
  transition: all 0.5s ease-in-out;
  font-family: "Roboto-Medium";
}
 .team-card .info:hover {
  color: #a7a7a7;
  -webkit-transform: scale(0.99);
      -ms-transform: scale(0.99);
          transform: scale(0.99);
  
  
 }
.team-section-title {
  text-align: center;
  margin-top: -2rem;
  margin-bottom: 6rem;
  font-size: 5rem;
  font-weight: bold;
  color: #565656;


  opacity: 0;
  -webkit-transform: translateY(50px);
      -ms-transform: translateY(50px);
          transform: translateY(50px);
  -webkit-animation: fadeUp 1s ease forwards;
          animation: fadeUp 1s ease forwards;
  -webkit-animation-delay: 0.2s;
          animation-delay: 0.2s;
}

@-webkit-keyframes fadeUp {
  to {
    opacity: 1;
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}

@keyframes fadeUp {
  to {
    opacity: 1;
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}

/*   accordion Management */

 .accordion-content {
    max-height: 0;
    overflow: hidden;
    -webkit-transition: max-height 0.5s ease;
    -o-transition: max-height 0.5s ease;
    transition: max-height 0.5s ease;
    background: #d4d4d4;
    padding: 0 15px;
  }
   .text-accordion {
    margin: 10px 0;
    font-size: 1.4rem;
    line-height: 2rem;
    color: #555;
  }


.team-card.active .accordion-content {
  max-height: 200px; 
}
.team-card .accordion-content {
  max-height: 0;
  overflow: hidden;
  -webkit-transition: max-height 0.6s ease;
  -o-transition: max-height 0.6s ease;
  transition: max-height 0.6s ease;
}

.team-card.active .accordion-content {
  max-height: 1000px; 
}




 /* Certificates Section */

 
  .certificates {
    text-align: center;
    padding: 4rem 2rem;
    margin-top: 2rem;
    background: #f9f9f9;
  }

  .certificates-title {
    
    margin-bottom: 2rem;
    font-size: 5rem;
   
  color: #3a3a3a;
  }

  .certificates-container {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
        flex-wrap: wrap;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    gap: 2rem;
    padding: 2rem;
    cursor: pointer;
  }

  .certificate {
    width: 255px;       
    background: #fff;
    padding: 1.5rem;
    border-radius: 1rem;
    -webkit-box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
    -webkit-transition: -webkit-transform 0.3s;
    transition: -webkit-transform 0.3s;
    -o-transition: transform 0.3s;
    transition: transform 0.3s;
    transition: transform 0.3s, -webkit-transform 0.3s;
  }

  .certificate:hover {
  
    -webkit-transform: scale(1.1);
  
        -ms-transform: scale(1.1);
  
            transform: scale(1.1);
  }

  .certificate img {
    max-width: 100%;
    height: auto;
    border-radius: .5rem;
    margin-bottom: 1rem;
  }

  .certificate p {
    font-size: 1.5rem;
    color: #555;
  }
/* ----- footer-contact-strip FIXED styles ----- */
    /* ----- Contact FIXED styles ----- */

    .contact-backgraund {
      background-color: #111;
      opacity: 0;
       overflow-x: hidden;
     
      -webkit-transition: opacity 1s ease-in-out;
     
      -o-transition: opacity 1s ease-in-out;
     
      transition: opacity 1s ease-in-out;
    }
    .contact-backgraund.loaded {
      opacity: 1;
       overflow-x: hidden;
    }
    .contact-section{
      
      background-color: #111;
      }

.contact-container {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 100px;
  max-width: 1100px;
  margin: auto;
  padding: 2rem;
  height: auto;
}
.contact-form-container {
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
  margin-top: 5rem;
  margin-bottom: 3rem
  
}

.contact-info {
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
  margin-top: 6rem;
  line-height: 1.38;

}
.contact-info-links a {
  color: #ffffff;
  text-decoration: none;
  cursor: pointer;
  font-size: 2.8rem;
  margin: 0 2rem;
}
.contact-info-links a:hover {
  color: #00a8a0;
}



.contact-info p {
  margin: 10px 0 15px;
  color: #00a8a0;
  font-size: 2.8rem;
   font-family: "Roboto-Regular";
}
.contact-subtitle {
  font-size: 5rem;
  color: #00a8a0;
  
}

form {
  -webkit-box-flex: 2;
      -ms-flex: 2;
          flex: 2;
  width: 60rem;
 
  
}

form h2 {
  font-size:2rem;
  margin-bottom: 20px;
  
}

.contact-form, textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #00a8a0;
  margin-bottom: 15px;
  font-size: 16px;
  font-family: "Roboto-Regular";
}

.name-fields {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 10px;
}

.name-fields .contact-form {
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
}
.contact-form {
  display: block;
}

.email-phone {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 10px;
}

.email-phone .contact-form {
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
}

button {
  background: transparent;
  border: 1px solid #00a8a0;
  padding: 10px 20px;
  color: #00a8a0;
  font-size: 14px;
  cursor: pointer;
  text-transform: uppercase;
   font-family: "Roboto-Regular";
  
}

button:hover {
  background: #00a8a0;
  color: white;
}



/* ----- footer FIXED styles ----- */

.footer {
  background: #222;
  color: #ccc;
  padding: 2rem;
  text-align: center;
  
}
.footer-content {
  
 
  max-width: 1200px;
  margin: 0 auto;
  
}
.footer-logo { font-size: 1.3rem; color: #ffffff; margin-bottom: 1rem; }
.footer-nav a {
  margin: 0 1rem;
  color: #00a8a0;
  text-decoration: none;
  font-size: 1.5rem;
}
.footer-nav {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  gap: 1rem;
}
.footer-nav a {
  color: #00a8a0;
  font-size: 1.2rem;
  text-decoration: none;
}


.footer-content {
  min-height: 10rem;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  
}
.footer-logo { font-size: 1.3rem; color: #ffffff; margin-bottom: 1rem; }
.footer-nav a {
  margin: 0 1rem;
  color: #00a8a0;
  text-decoration: none;
  font-size: 1.5rem;
}
.footer-nav a:hover {
  color: #fff;
}
#footer-menu {
font-family: "Vazir-Medium-FD-WOL";
text-align: center;
}
.footer-bottom {
  text-align: center;
  margin-top: 1rem;
  font-size: 1rem;
  color: #00a8a0;
}
.footer-contact-strip {
  min-height: 50rem;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  background-color: #111;
  color: #fff;
  padding: 2rem 1rem;
  gap: 2rem;
  border-bottom: 1px solid #333;
}

.contact-item {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: wrap;
          flex-direction: wrap;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  max-width: 50rem;
 
}


.contact-item a, 
.contact-item p {
  margin: 0;
  color: #fff;
  font-size: 4rem;
  text-decoration: none;
}

.contact-item a:hover {
  text-decoration: underline;
}
.contact-info-links-farsi a {
  font-size: 2.3rem;
  margin: 0 2rem;
  color: #fff;
  text-decoration: none;
   font-family: "Vazir-Medium-FD-WOL";

}
.contact-info-links-farsi a:hover {
  color: #00a8a0;
}
/* ----- portfolio FIXED styles ----- */

.portfolio-section {
  width: 100%;
  min-height: 50vh; 
  background: 
    -webkit-gradient(linear, left top, left bottom, color-stop(70%, rgba(0,0,0,0)), to(#111)), 
    url(../img/backgraunds/banner-portfolio.jpg) no-repeat center top; 
  background: 
    -o-linear-gradient(top, rgba(0,0,0,0) 70%, #111 100%), 
    url(../img/backgraunds/banner-portfolio.jpg) no-repeat center top; 
  background: 
    linear-gradient(to bottom, rgba(0,0,0,0) 70%, #111 100%), 
    url(../img/backgraunds/banner-portfolio.jpg) no-repeat center top;
  background-size: cover;
  overflow: hidden;
  position: relative;
}
.portfolio-background {
 background-color: #0111;
  opacity: 0;
  -webkit-transition: opacity 1s ease-in-out;
  -o-transition: opacity 1s ease-in-out;
  transition: opacity 1s ease-in-out;
}
.portfolio-background.loaded {
  opacity: 1;
}

.pdf-container {
      display: block;
  width: 100%;
  height: 100vh;
  border: none;
    }

    .download-link {
      text-align: center;
      margin: 1rem;
    }

    .download-link a {
      text-decoration: none;
      background: #222;
      color: #fff;
      padding: 10px 20px;
      border-radius: 4px;
      font-size: 1rem;
    }

    .download-link a:hover {
      background: #757575;
    }
  .portfolio-title {
  text-align: center;
  margin-top: 4rem;
  margin-bottom: 6rem;
  font-size: 5rem;
  color: #ffffff;

 
  opacity: 0;
  -webkit-transform: translateY(60px);
      -ms-transform: translateY(60px);
          transform: translateY(60px);
  -webkit-animation: fadeUp 1s ease forwards;
          animation: fadeUp 1s ease forwards;
  -webkit-animation-delay: 0.3s;
          animation-delay: 0.3s; 
}

@keyframes fadeUp {
  to {
    opacity: 1;
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}
.pdf-mobile {
  display: none;
  width: 100%;
  height: 90vh;
  border: none;
}


.download-btn {
  text-align: center;
  margin: 2rem 0;
  display: none;
  
}
.download-btn a {
  text-decoration: none;
  background:#00a8a09c;
  color: #fff;
  padding: 12px 24px;
  border-radius: 6px;
  font-size: 1.2rem;
  display: inline-block;
  font-family: "Roboto-Regular";
  -webkit-transition: background 0.3s ease;
  -o-transition: background 0.3s ease;
  transition: background 0.3s ease;
}
.download-btn a:hover { background: #555; }
.pdf-mobile {
  width: 100%;
  border: none;
}
 /* flipbook */
 
    .flipbook {
      width: 90%;
      max-width: 900px;
      aspect-ratio: 3 / 2;
      margin: 3rem auto;
      background: #ffffff8b; 
      border: 1px solid #ffffff8b;
      border-radius: 8px;
      -webkit-box-shadow: 0 4px 25px rgba(0, 0, 0, 0.1);
              box-shadow: 0 4px 25px rgba(0, 0, 0, 0.1);
      overflow: hidden;  
      position: relative;
    }

    .flipbook div {
      background: #ffffff8b; 
      overflow: hidden;
    }

    .flipbook img {
      width: 100%;
      height: 100%;
      -o-object-fit: contain;
         object-fit: contain;
      display: block;
      pointer-events: none;
    }

    .controls {
      text-align: center;
      margin-bottom: 2rem;
    }

    .controls button {
      background: #c3a729eb;
      border: 1px solid #aaa;
      color: #111;
      padding: 0.7rem 3.5rem;
      border-radius: 8px;
      margin: 0 1rem;
      cursor: pointer;
      -webkit-transition: all 0.3s;
      -o-transition: all 0.3s;
      transition: all 0.3s;
      font-weight: 600;
    }

    .controls button:hover {
      background: #111;
      color: white;
      
    }

    .status {
      text-align: center;
      color: #aaa;
      margin-top: 1rem;
      font-size: 1rem;
    }
    .pdfcontainer {
      display: block;
    }