/**Intro Section**/

            *{
                padding: 0;
                margin: 0;
                box-sizing:border-box;
            }
html{
    font-size: 10px;
    scroll-behavior: smooth;
    font-family: sans-serif, serif;
}
            
a{
    text-decoration:none;
}

.container{
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

 .section-title{
    font: 4rem;
    font-weight: 300;
    color: black;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 2rem;
    text-align: center;
}

.section-title span{
    color: deeppink;
} 
          #contentsIntro,  #intro{
                background-image:url('real intro.jpg');
                background-size:cover;
                background-position: top center;
                position: relative;
                z-index: 1;
            }
            
#contentsIntro{
    background-image:url(./images/slideshow/pupilsStudying.png);
}

            #intro::after{
                content:'';
                position:absolute;
                left: 0;
                top: 0;
                height: 100%;
                width: 100%;
                background-color: black;
                opacity: .7;
                z-index: -1;
            }

             
            #intro .intro{
                max-width: 1200px;
                margin: 0 auto;
                padding: 0 50px;
                justify-content: flex-start;
                    
            }
            
           
     #contentsIntro h1, #intro h1{
                display: block;
                width: fit-content;
                font-size: 4rem;
                position: relative;
                color: transparent;
                animation: text_reveal .5s ease forwards;
                animation-delay: 1s;
            }
            #contentsIntro h1:nth-child(1), #intro h1:nth-child(1){
                animation-delay: 1s;
            }
            
            #contentsIntro h1:nth-child(2), #intro h1:nth-child(2){
                animation-delay: 2s;
            }
            
            #contentsIntro h1:nth-child(3), #intro h1:nth-child(3){
                animation: text_reveal_name .5s ease forwards;
                animation-delay: 3s;
            }
            
        #contentsIntro h1 span, #intro h1 span{
                position: absolute;
                top: 0;
                left: 0;
                height: 100%;
                width: 0;
                background-color: blue;
                animation: text_reveal_box 1s ease;
                animation-delay: .3s;
            }
        
         #contentsIntro h1:nth-child(1) span, #intro h1:nth-child(1) span {
                animation-delay: 0.5s;  
            }
        #contentsIntro h1:nth-child(2) span, #intro h1:nth-child(2) span {
                animation-delay: 1.5s;
            }
        #contentsIntro h1:nth-child(3) span,#intro h1:nth-child(3) span {
                animation-delay: 2.5s;
            }

         #intro .cta{
                display: inline-block;
                padding: 10px 30px;
                color:blue;
                background-color: transparent;
                border: 2px solid blue;
                font-size: 2rem;
                text-transform: uppercase;
                letter-spacing: .1rem;                
                margin-top:30px;
                transition: .3s ease;
                transition-property: background-color, color;
            }

         #intro .cta:hover{
                color:white;
                background-color:blue;
            }



        @keyframes text_reveal_box{
                50%{
                    width:100%;
                    left: 0;
                }
                100%{
                    width: 0;
                    left 100%;
                }
            }

        @keyframes text_reveal{
                100%{
                    color: white;
                }
            }
        @keyframes text_reveal_name{
                100%{
                    color: deeppink;
                    font-weight: 500;
                }
            }

#stemExplained .stem{
    flex-direction: column;
    text-align: center;
    max-width: 1500px;
    margin: 0 auto;
    padding:100px 0;
}



#stemExplained .stem-top p{
    font-size: 2rem;
    margin-top: 5px;
    line-height: 2.5rem;
    font-weight: 300;
    letter-spacing:.05rem;
    color:black;
}

#stemExplained .stem-bottom{
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 50px;
}

#stemExplained .stem-challenges{
    flex-basis: 80%
    display: flex;
    align-items: flex-start;
    justify-content: center;
    flex-direction: column;
    padding: 30px;
    border-radius: 10px;
    background-image: url(images/slideshow/theLongAhead.png);
    background-size:cover;
    margin:10px 5%;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

#stemExplained .stem-challenges::after{
    content:'';
    position:absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 100%;
    background-image:linear-gradient(60deg, #29323c 0%, #485563 100%);
    opacity: .3;
    z-index: -1;
}

#stemExplained .stem-challenges .icon{
    height:80px;
    width: 80px;
    margin-bottom: 10px;
    text-transform: uppercase;
    
}

#stemExplained .stem-challenges h2{
    font-size: 2rem;
    color: white;
    margin-bottom: 10px;
    text-transform: uppercase;
}

#stemExplained .stem-bottom ol li{
    color: white;
    text-align: left;
    font-size: 1.5rem;
    line-height: 1.9rem;
}
/*End of transition*/
            /**End of Intro Section**/
    /*End of one page begin */

/**About us*/
#aboutus .about{
    flex-direction: column-reverse;
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 20px;
    
}
#aboutus .col-left{
    width: 300px;
    height: 360px;
}

#aboutus .col-right{
    width: 100%;
     text-align: left;
    font-size: 1.4rem;
    line-height: 1.9rem;
   padding-left: 10px;
}

#aboutus .col-right h2{
    font-size: 1.8rem;
    font-weight:500;
    letter-spacing: .2rem;
    margin-bottom:10px;
    
    
}


#aboutus .col-right p{
    margin-bottom: 20px;
}


#aboutus .col-right .cta {
    color: black;
    margin-bottom: 30px;
    padding: 10px 20px;
    font-size: 2rem;
        
}

/*#aboutus .col-left .about-img{
    height: 100%;
    width: 100%;
    position: relative;
    border: 10px solid white;
}*/
#aboutus .col-left .about-img img{
    content:'';
    position: relative;
    left: -33px;
    top: 19px;
    height: 98%;
    width: 98%;
    border: 7px solid deeppink;
    z-index: -1;
}


/* #aboutus .col-left .about-img::after{
    content:'';
    position: absolute;
    left: -33px;
    top: 19px;
    height: 98%;
    width: 98%;
    border: 7px solid deeppink;
    z-index: -1;
}*/

#stemExplained .stem-bottom ol li{
    color: white;
    text-align: left;
    font-size: 1.4rem;
    line-height: 1.9rem;
}
/*End of About us*/

/*Projects*/

#projects .projects{
    flex-direction:column;
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 0;
}

#projects .projects-header h1{
    margin-bottom: 50px;
}

#projects .all-projects{
    margin-bottom:50px;
}

#projects .project-item{
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    width: 80%;
    margin: 20px auto;
    overflow: hidden;
    border-radius: 10px;
}

#projects .project-info{
    padding: 30px;
    flex-basis: 50%;
    background-color: white;
    height: 100%;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    flex-direction:column;
    background-image: linear-gradient(60deg, #29323c 0%, #485563 100%);
    color: white;
    font-size: 1.5rem;
}

#projects .project-info h1{
    font-size:4rem;
    font-weight:500;
}

#projects .project-info h2{
    font-size: 1.8rem;
    font-weight: 500;
    margin-top: 10px;
    
}

#projects .project-img{
    flex-basis: 50%;
    height: 300px;
    overflow: hidden;
    position: relative;
    
}
#projects .project-img img{
    margin: 0 auto;
}
#projects .project-img::after{
    content:'';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 100%;
    background-image:linear-gradient(60deg, #29323c 0%, #485563 100%);
    opacity: .7;
}

#projects .project-item:hover .project-img img{
    transform: scale(1.1)
}

#projects .project-img img{
    transition: .3s ease transform;
}

/*End projects*/

/*Contacts */
#contact .contact{
    flex-direction: column;
    max-width:1200px;
    margin: 0 auto;
}

#contact .contact-items{
    width:400px;
}

#contact .contact-item{
    width:80%;
    padding: 20px;
    text-align: center;
    border-radius: 10px;
    padding: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    box-shadow: 0px 0px 18px 0px #0000002c;
    transition: 3s ease box-shadow;
}

#contact .icon{
    width: 70px;
    margin: 0 auto;
    margin-bottom: 10px;
}

#contact .contact-info h1{
    font-size: 2.5rem;
    font-weight:500;
    margin-bottom: 5px;
}

#contact .contact-info h2{
    font-size: 1.3rem;
    line-height: 2rem;
    font-weight: 500;
}

#contact .contact-item:hover{
    box-shadow: 0px 0px 5px 0px #0000002c;
}
/*End contacts*/
/** Footer**/
#footer{
    background-image: linear-gradient(60deg, #29323c 0%, #485563 100%);
}

#footer .footer{
    min-height: 200px;
    flex-direction: column;
    padding-top: 50px;
    padding-bottom: 10px;
}

.brand h1{
    font-size: 1rem;
    text-transform: uppercase;
    color: white;
    
}

.brand h1 span{
    color: deeppink;
}

#footer h2{
    color:white;
    font-weight: 500;
    font-size: 1.8rem;
    letter-spacing: .1rem;
    margin-top: 10px;
    margin-bottom: 10px
}

#footer p{
    color: white;
    font-size: 1.3rem;
}
/**End footer**/


#header{
    position: fixed;
    z-index: 1000;
    left:0;
    top:0;
    width: 100vw;   /*removing this will result in the menu covering part of the screen always*/
    height: auto;    
}

#header .header{
    min-height: 8vh;
    background-color: rgba(31, 31, 30, 0.24);
    transition: .3s ease background-color;  /*to ease the background color change of the header*/
}

#header .nav-bar{
    display: flex;
    align-items:center;
    justify-content: space-between;
    width: 100%;
    height: 100%;
    max-width:1300px;
    padding: 0 10px;
}

#header .nav-list ul{
    list-style: none;
    position: absolute;
    background-color: rgb(31, 30, 30);
    width:100vw;
    height: 100vh;
    left: 100%;
    top: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1;
    overflow: hidden;
    transition: .3s ease left;
}

#header .nav-list ul a{
    font-size: 2.5rem;
    font-weight:500;
    letter-spacing: .2rem;
    text-decoration: none;
    color: white;
    text-transform: uppercase;
    padding: 20px;
    display: block;
}

#header .nav-list ul.active{
    left:0;
}

#header .nav-list ul a::after{
    content:attr(data-after);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    color: rgba(240, 248, 255, 0.1);
    font-size: 7rem;
    letter-spacing: 50px;
    z-index: -1;
    transition: .3s ease letter-spacing;
        
}

#header .nav-list ul li:hover a::after{
    transform: translate(-50%, -50%) scale(1);
    letter-spacing: initial;
}

#header .nav-list ul li:hover a{
    color: deeppink;
}

#header .hamburger{
    margin-right:20px;
   
    z-index: 100;
    height: 60px;
    width: 60px;
    display: inline-block;
    border: 3px solid white;
    border-radius: 50%;
    position:relative;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
     transform: scale(.8);
}

#header .hamburger .bar {
    height: 2px;
    width: 30px;
    position: relative;
    background-color: white;
    z-index: -1;
}

#header .hamburger .bar::after,
#header .hamburger .bar::before{
    content: '';
    position: absolute;
    height: 100%;
    width: 100%;
    left: 0;
    background-color: white;
    transition: -3s ease;
    transition-property: top, bottom;
}

#header .hamburger .bar::after{
    top:8px;
}

#header .hamburger .bar::before{
    bottom: 8px;
}
#header .hamburger.active .bar::after{
    top:0;
}
#header .hamburger.active .bar::before{
    bottom:0;
}
#header .hamburger::after{
    position: absolute;
    content: '';
    height: 100%;
    width:100%;
    border-radius: 50%;
    border: 3px solid white;
    animation: hamburger_pulse 1s ease infinite;
        
}

@keyframes hamburger_pulse{
    0%{
        opacity: 1;
        transform: scale(1);
    }
    
    100%{
        opacity: 0;
        transform: scale(1.5);
    }
}

.form{
    max-width: 320px; /*instead of 400px*/
    background-color: white;
    /*background:#e6eeff;*/
    padding: 150px 30px;
}

input{
    height: 30px;
    width:100%;
    border: none;
    padding: 10px;
    border-bottom: .5px solid black;
    transition: 1s ease all;
}

.field{
    position:relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 25px 0;
    
}

.border{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
     transform:  scale(0);
    transform-origin: center;
    height: 3px;
    background-color: blue;
    transition: .4s ease-in-out all;
}

label{
    position:absolute;
    left:10px;
    transition: .5s ease all;
    
}

.cell label{
    position:static;
    font-size: 14px;
}

input:focus{
    outline: 0;
}

button{
    padding: 10px 35px;
    width:100%;
    background-color: aqua;
    border: none;
    font-size: 2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: .7s ease all;
    cursor: pointer;
}

button:hover{
    background:blue;
    letter-spacing: 4px;
}

label.top{
    transform: translateY(-20px);
}
.container .test {      /*Only on sign in page.*/
    text-align: center;
    border-style: dotted;
    border-color: aqua;
}

form button[type="submit"]:hover{
     color:white;
    background-color:blue;
}

/**Media query for tablet */
@media only screen and (min-width:768px){
    .cta{
        font-size: 2.5rem;
        padding:20px 60px;
    }
    
    h1.section-title{
        font-size: 6rem;
    }
    
    #intro h1{
        font-size: 7rem;
    }
    
    #stemExplained  .stem-bottom .stem-challenges{ 
        /* The first two styles have no effect on the output so far*/
        flex-basis: 40%;
        margin: 2.5%;
        background-color: red;
    }
    
     #projects .project-item{
        flex-direction:row;
    } 
    #projects .project-item{
        height:400px;
        margin: 0;
        width: 100%;
        border-radius:0;
            
    }
    
   
    
    #projects .all-projects .project-info{
        height:100%;
    }
    
    #projects .all-projects .project-img{
        height:100%;
    }
    
    #project .project-item:nth-child(even){
        flex-direction: row-reverse;
    }
    
    #about .col-left{
        width:600px;
        height: 400px;
        padding-left: 60px;
    }
    
    #about .col-right {
        text-align:left;
        padding:30px;
    }
    
    #about .col-right h1{
        text-align: left;
    }
    
    #contact .contact{
        flex-direction: column;
        padding: 100px 0;
        align-items: center;
        justify-content: center;
        min-width: 20vh;
    }
    
    #contact .contact-items{
        width:100%;
        display: flex;
        flex-direction:row;
        padding: 20px;
        margin: 0;
        justify-content: space-evenly;
    }
    #contact .contact-item{
        margin: 20px;
        margin: 0;
        flex-direction: row;
        
    }
    
    #contact .contact-item icon{
        height:100px;
        width:100px;
    }
    
    #contact .contact-item .icon img{
        object-fit: contain;
    }
    
    #contact .contact-item .contact-info{
        width: 100%;
        text-align: left;
        padding: 20px;
    }
}
/*end of media query for tablet */
@media only screen and (min-width: 1200px){ 
    #header .hamburger{
        display: none;
    }
    
    #header .nav-list ul{
        position: initial;
        display: block;
        height: auto;
        width: fit-content;
        background-color: transparent;
        
    }
    
    #header .nav-list ul a::after{
        display: none;
    }
    
    #header .nav-list ul li{
        display: inline-block;
    }
    
    #header .nav-list ul li a{
        font-size: 1.5rem;
    }
}