@import url("https://fonts.googleapis.com/css?family=Poppins:200,300,400,500,600,700,800,900&display=swap");
*
{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}
body
{
    overflow-x: hidden;
}
:root
{
    --black: #333;
    --green: #286653;
    --white: #fff;
    --white2: #fff;
    --black2: #333;

}
.dark
{
    --black: #fff;
    --white: #222222;
    --black2: #474747;
}
section
{
    position: relative;
    width: 100%;
    min-height: 100vh;
    padding: 100px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    background-color: var(--white);
}
header
{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 10px 100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 10000;
}

header ul
{
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;  
}
header ul li
{
    list-style-type: none;
    display: flex;
    margin-left: 30px;   
}
header ul li a
{
    display: inline-block;
    color: var(--black);
    font-weight: 500;
    text-decoration: none;
}

.content
{
    position: relative;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 2;
   
}
.content .textBox
{
    position: relative;
    max-width: 600px;
    z-index: 2;
    margin-right: 20px;
    text-align: justify;
    text-justify: inter-word;
    
}
.content .textBox h2
{
    font-size: 4em;
    color: var(--black);
    line-height: 1.4em;
    font-weight: 700;
    margin-bottom: 10px;
}
.content .textBox h2 span
{
    color: var(--green);

}
.dark .content .textBox h2 span
{
    color: #5d9778;
}
.content .textBox p{
    color: var(--black);
}
.content .textBox a
{
    display: inline-block;
    margin-top: 20px;
    padding: 8px 20px;
    background: var(--green);
    color: var(--white2);
    border-radius: 40px;
    font-weight: 500;
    letter-spacing: 1px;
    text-decoration: none;
}
.content .imgBox
{
    position: relative;
    width: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.content .imgBox img 
{
    position: relative;
    z-index: 1;
    max-width: 350px;
    /* filter: drop-shadow(3px 3px 4px rgb(34, 34, 34)); */
}
.contact
{
    position: relative;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 2;
}
.contact .textBox
{
    position: relative;
    max-width: 600px;
    z-index: 2;
    margin-right: 20px;
}
.contact .textBox h2
{
    font-size: 4em;
    color: var(--black);
    line-height: 1.4em;
    font-weight: 700;
    margin-bottom: 10px;
}
.contact .textBox h2 span
{
    color: var(--green);
}
.dark .contact .textBox h2 span
{
    color: #5d9778;
}
.contact .textBox p{
    color: var(--black);
}
.contact .textBox a
{   
    text-decoration: none;
    color: #1284b9;
    font-weight: 600;
}
.contact .imgBox
{
    position: relative;
    width: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.research
{
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
    z-index: 2;
}
.research .textBox
{
    position: relative;
    max-width: 950px; 
    z-index: 2;
    margin-right: 20px;
    text-align: justify;
    text-justify: inter-word;
}
.research .textBox h2
{
    font-size: 4em;
    color: var(--black);
    line-height: 1.4em;
    font-weight: 700;
    margin-bottom: 30px;
}
.research .textBox h2 span
{
    color: var(--green);
}
.dark .research .textBox h2 span
{
    color: #5d9778;
}

.research .textBox p{
    color: var(--black);
    margin-bottom: 40px;
    font-size: 0.9em;
}

.research .textBox h3
{
    font-size: 1.5em;
    color: var(--black);
    line-height: 1.4em;
    font-weight: 600;
    margin-bottom: 10px;
}
.research .textBox p span
{
    font-weight: 650;
}
.research .textBox a
{
    color: #1284b9;
    font-weight: 600;
}
.research .imgBox
{
    position: relative;
    top: 50px;
    justify-content: center;
    align-items: center;
    
}
#img1
{
    margin-bottom: 200px;
    margin-left: 100px;
    vertical-align: middle;
}
#img2
{
    margin-bottom: 200px;
    margin-left: 100px;
    vertical-align: middle;
}
#img3
{
    margin-left: 90px;
    height: 230px;
}
.sci
{
    position: absolute;
    display: flex;
    bottom: 40px;
    left: 100px;
    justify-content: center;
    align-items: center;
}
.sci li
{
    list-style: none;
}
.sci li a
{
    display: inline-block;
    width: 50px;
    height: 50px;
    background: var(--black2);
    color: var(--white2);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
}
.sci li a .fa
{
    font-size: 1.2em;
}
.sci li a:hover
{
    background: var(--green);
}
.themeSwitch
{
    position: relative;
    width: 40px;
    height: 40px;
    background: var(--black);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
}
.themeSwitch::before
{
    content: '\f186';
    font-family: fontAwesome;
    color: var(--white);
    font-size: 20px;
}

.themeSwitch.active::before
{
    content: '\f185';

}


@media (max-width: 991px)
{
    section
    {
        padding: 150px 20px;
    }
    header
    {
       padding: 20px; 
    }
    .sci
    {
        bottom: 20px;
        left: 20px;
    }
    .content
    {
        flex-direction: column-reverse;
    }
    .content .textBox,
    .content .imgBox
    {
        max-width: 100%;
        margin-right: 0px;
    }
    .content .imgBox img 
    {
        max-width: 250px;
    }
 
    .content .textBox h2 
    {
        font-size: 1.75em;
    }
    .contact
    {
        flex-direction: column-reverse;

    }
    .contact .textBox
    {
        max-width: 100%;
        margin-right: 0px;
    }
    .contact .textBox h2 
    {
        font-size: 1.75em;
    }
    .navigation
    {
        display: none;
    }
    .navigation.active
    {
        display: flex;
        position: fixed;
        top: 00;
        left: 0;
        width: 100%;
        height: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        background: var(--white);
        flex-direction: column;
    }
    header ul li 
    {
        margin: 10px 0;
        margin-left: 0;
    }
    header ul li a 
    {
        font-size: 1.5em;
        font-weight: 300;
    }
    .toggle
    {
        position: relative;
        width: 30px;
        height: 30px;
        background: url(./images/menu.png);
        filter: invert(1);
        background-size: 30px;
        background-position: center;
        background-repeat: no-repeat;
        cursor: pointer;
        z-index: 1000;
    }
    .toggle.active 
    {
        background: url(./images/close.png);
        filter: invert(1);
        background-size: 30px;
        background-position: center;
        background-repeat: no-repeat;
    }
    .dark .toggle
    {
        filter: invert(0);
    }
    .research .textBox
    {
        max-width: 100%;
        margin-right: 0px;
    }
    .research .imgBox 
    {   position: relative;
        max-width: 250px;
        top: 00px;   
    }
    #img3
    {
        margin-top: 200px;
    }
   

    .research .textBox h2 
    {
        font-size: 1.75em;
    }
}
@media(max-width: 700px)
{
    .research .imgBox
    {
        top: -100px;
    }
    #img1
   {
       margin-bottom: 500px;
   }
   #img2
   {
       margin-top: 200px;
       margin-bottom: 200px;
   }
   #img3
   {
       margin-top: 800px;
   }
}