* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
    scroll-behavior: smooth;
}

header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 40px 100px;
    z-index: 10000;
    transition: 0.6s;
}
header .logo {
    position: relative;
    font-weight: 700;
    color: white;
    text-decoration: underline;
    font-size:1.21em;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: 0.6s;
}

header #toggle {
    position: relative;
    width: 30px;
    height: 30px;
    cursor: pointer;
}
header #toggle:before {
    content: '';
    position: absolute;
    top: 7px;
    width: 100%;
    height: 2px;
    background: #fff;
}

header #toggle:after {
    content: '';
    position: absolute;
    bottom: 7px;
    width: 100%;
    height: 2px;
    background: #fff;
    background-repeat: no-repeat;
}

.banner.active header #toggle:before {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
}

.banner.active header #toggle:after {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-45deg);
}


.banner {
    position: relative;
    width: 100%;
    min-height: 100vh;
    padding: 100px;
    background: url(img/eng.jpeg);
    background-size: cover;
    display: flex;
    align-items: center;
    transition: 0.5s;
    z-index: 2;
}
.banner.active {
    transform: translateX(-400px);
}
#navigation {
    position: fixed;
    top: 0;
    right: -200px;
    width: 400px;
    height: 100vh;
    background: black;
    z-index: 1;
    display: grid;
    place-items: center;
    transition: 0.5s;
}

#navigation.active {
    right: 0;
}
#navigation ul{
    position: relative;
    display: flex;
    flex-direction: column;
}
#navigation ul li {
    list-style: none;
}
#navigation ul li a {
    color: #fff;
    text-decoration: none;
    display: inline-block;
    font-size: 2em;
    font-weight: 600;
    text-transform: uppercase;
    margin: 10px 0;
    letter-spacing: 1px;
}

#navigation ul li a:hover {
    color: blue;
}

.content {
    max-width: 600px;
}
.content h2 {
    color: #fff;
    font-size: 2.5em;
}
.content h2 span {
    color: black;
    font-size: 1.2em;
}

.content p {
    font-size: 1.2em;
    color: #fff;
    font-weight: 300;
}
.content a {
    position: relative;
    display: inline-block;
    margin-top: 20px;
    background: #fff;
    color: #000;
    padding: 10px 30px;
    text-decoration: none;
    font-size: 1.2em;
    font-weight: 500;
}

.sci {
    position: absolute;
    display: flex;
    flex-direction: column;
    right: 100px;
}
.sci li {
    margin-right: 10px;
    list-style: none;
}

.sci li a {
    position: relative;
    display: grid;
    place-items: center;
    width: 50px;
    height: 50px;
    text-decoration: none;
    border: 1px solid #fff;
    margin: 10px 0 0;
}

.sci li a:hover {
    background: #fff;
}
.sci li a img {
    max-width: 20px;
    filter: invert(1);
    mix-blend-mode: difference;
}


.title-about {
    padding: 20px;
    width: 100%;
    text-align: center;
}

.title-about h2 {
    position: relative;
    color: blue;
    font-size: 2em;
    font-weight: 700;
    letter-spacing: 1px;
}

.title-about p {
    padding: 18px;
    max-width: 700px;
    display: inline-block;
    font-size: 1.2em;
}

.title-about h2::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: -10px;
    width: 60px;
    height: 4px;
    background: #000;
}

.about {
    background: #000;
}

.title-about.white h2,
.title-about.white p
{
    color: #fff;

}

.title-about.white h2::before {
    background: #fff;

}

.about .content-about {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    margin-left: 63px;
    left: 50%;
    font-size: 1.2em;
    letter-spacing: 1px;
    line-height: 27px;

}

.about .content-about .textBx {
    min-width: 49%;
    width: 49%;
    padding-right: 200px;
    
}

.about .content-about .textBx p {
    color: #fff;
}


.about .content-about .vidBx {
    margin-left: 40px;
}


.about .content-about .vidBx video {
    max-width: 100%;
    max-height: 600px;
}






.free-videos {
    background: #000;
}

.title-about.white h2,
.title-about.white p
{
    color: #fff;

}

.title-about.white h2::before {
    background: #fff;

}

.free-videos .content-about {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    margin-left: 63px;
    left: 50%;
    font-size: 1.2em;
    letter-spacing: 1px;
    line-height: 27px;

}

.free-videos .content-about .textBx {
    min-width: 49%;
    width: 49%;
    padding-right: 200px;
    
}

.free-videos .content-about .textBx p {
    color: #fff;
}


.free-videos .content-about .vidBx {
    margin-left: 40px;
}


.free-videos .content-about .vidBx video {
    max-width: 100%;
    max-height: 600px;
}



.learning-tips {
    background: #000;
}

.title-about.white h2,
.title-about.white p
{
    color: #fff;

}

.title-about.white h2::before {
    background: #fff;

}

.learning-tips {
    padding-top: 30px;
    position: relative;
    width: 100%;
    height: 100vh;
}

.learning-tips .box {
    position: absolute;
    top: calc(50% - 200px);
    left: calc(50% - 200px);
    width: 400px;
    height: 400px;
    transform-style: preserve-3d;
}

.learning-tips .box div {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transform: rotateX(-20deg) rotateY(25deg) translate3D(-75px, -50px, 150px);
}

.learning-tips .box div span {
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
    height: 100%;
    border: 1px solid white;
    background: #ccc;
}

.learning-tips .box div span video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: blur(0px);
}

.learning-tips video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: blur(5px);

}


.learning-tips .box div span:nth-child(1) {
    transform: rotateX(0deg) translate3d(0,0,200px);
}

.learning-tips .box div span:nth-child(2) {
    transform: rotateY(90deg) translate3d(0,0,-200px);
}

.learning-tips .box div span:nth-child(2) video {
    transform: rotateY(180deg);
}

.learning-tips .box div span:nth-child(3) {
    transform: rotateX(90deg) translate3d(0,0,200px);
}



























.courses .content {
    display: flex;
    justify-content: center;
    flex-direction: row;
    flex-wrap: wrap;
}

.courses .content .coursesBx {
    padding: 40px 20px;
    max-width: 340px;
    margin: 20px;
    transition: 0.5s;
    text-align: center;
    background-color: blue;
    margin-left: 50px;

}








.courses {
    padding-top: 40px;
    background: #000;
}


.container {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1240px;
    flex-wrap: wrap;
    z-index: 1;
}

.container  .card {
    position: relative;
    width: 180px;
    height: 250px;
    margin: 30px;
    box-shadow: 20px 20px 50px rgba(0, 0, 0, 0.5);
    border-radius: 15px;
    background: blue;
    overflow: visible;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.5);
    border-left: 1px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
}

.container .card .content {
    padding: 20px;
    text-align: center;
    transform: translateY(100px);
    opacity: 0;
    transition: 0.5s;
}

.container .card:hover .content {
    transform: translateY(0px);
    opacity: 1;

}


.container .card .content h2 {
    position: absolute;
    top: -80px;
    right: 30px;
    font-size: 4em;
    color: whitesmoke;
    pointer-events: none;
}

.container .card .content h3 {
    font-size: 2em;
    color: white;
    z-index: 1;
}

.container .card .content p {
    font-size: 1em;
    color: blue;
    font-weight: 300;
}

.container .card .content a {
    position: relative;
    display: inline-block;
    padding: 8px 20px;
    margin-top: 15px;
    background: #fff;
    color: #000;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 500;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}


.free-videos {
    padding-top: 40px;
    background: #000;
}

.free-videos .content-about
 {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin-top: 40px;
    margin-left: 63px;
    left: 50%;
    font-size: 1.2em;
    letter-spacing: 1px;
    line-height: 27px;

}

.free-videos .content-about.textBx
{
    min-width: 49%;
    width: 49%;
    padding-right: 200px;
    
}

.free-videos.content-about.textBx p
{
    color: #fff;
}


.free-videos.content-about.vidBx
{
    margin-left: 40px;
}


.free-videos.content-about .vidBx video {
    max-width: 100%;
    max-height: 600px;
}



















.contact {
    padding-top: 50px;
    background: #000;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.contact .contactForm {
    position: relative;
    width: 700;
    margin-top: 20px;
}

.contact .contactForm .row {
    width: 100%;
    display: flex;
}

.contact .contactForm .row .col50 {
    width: 50%;
    margin: 10px;
}

.contact .contactForm .row .col100 {
    width: 100%;
    margin: 10px;
    text-align: center;
}

.contact .contactForm .row input,
.contact .contactForm .row textarea 
{
    width: 100%;
    padding: 10px;
    border: none;
    outline: none;
    background: #111;
    color: #fff;
    font-size: 16px;
    resize: none;
}

.contact .contactForm .row textarea  {
    height: 100px;
}

.contact .contactForm .row input[type="submit"] {
    background: blue;
    color: #fff;
    padding: 10px 30px;
    display: inline-block;
    font-weight: 500;
    letter-spacing: 2px;
    cursor: pointer;
    max-width: 150px;
}

.copyright {
    color: #fff;
    background: #111;
    text-align: center;
    padding: 10px;
}

.copyright p {
    margin: 0;
    font-size: 16px;
}