/* main css */
body {
    background-color: black;
    font-family: "Open Sans", sans-serif;
}

main, section, div, img, button {
    position: absolute;
}

main {
    background-color: white;
    width: 1920px;
    height: 1080px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

section {
    width: 100%;
    height: 100%;
    display: none;
}

#screen1 {
    display: block;
}

.frame {
    left: 680px;
    top: 110px;
    display: none;
}

#frame1 {
    display: block;
}

#title-txt{
    left: 665px;
    top: 33px;
    width: 700px;
    height: auto;
}

.intro-container {
    left: 150px;
    top: 260px;
    width: 480px;
    height: 650px;
    padding: 35px 25px;
    
}
.intro-container a{
    text-decoration: none;
}
.intro-container div,
.intro-container button {
    position: static;
}

.history-txt {
    color: #0075bf;
    background-color: white;
    border: solid 1px #0075bf;
    border-radius: 10px;
    font-size: 14px;
    line-height: 19px;
    padding: 18px;
    font-weight: 400;
}

.learn-more-txt {
    font-size: 25px;
    font-weight: 600;
    color: #0075bf;
    margin-top: -195px;
    margin-left: 500px;
}

button {
background: none;
border: none;
border-radius: 0;
font: inherit;
cursor: pointer;
outline: none;
padding: 0;
margin: 0;
}

.to-screen-btn {
    background-color: rgba(255, 255, 255, 0.8);
    border: solid 1px #0075bf;
    border-radius: 5px;
    width: 390px;
    height: 80px;
    display: flex;
    margin-top: 20px;
    overflow: hidden;
}

.flyb1{
    width: 200px;
    top: 370px;
    left: 810px;

}

.flyb2{
    width: 150px;
    top: 500px;
    right: 630px;
}

.flyb3{
    width: 200px;
    bottom: 310px;
    right: 200px;
}

#back-btn {
    width: 60px;
    height: 100px;
    background-color: #0075bf; /* Blue background */
    border-radius: 0 4px 4px 0; /* Rounded corners on the right side */
    color: white; /* White text */
    font-size: 74px; /* Large font */
    opacity: 0.75; /* Slight transparency */
    top: 50%;
    margin-left: 30px;
    align-items: center;
    transform: translate(-50%); /* Vertically centers the button */
    display: flex;
    justify-content: center;
    align-content: center;
    line-height: 1; /* Text line height */
    z-index: 100; /* Ensures the back button stays on top */
}

.to-screen-btn > div:first-child {
   padding: 10px 20px; 
   font-size: 21px;
   font-weight: 600;
   color: #0075bf;
}

.to-screen-btn > div:last-child {
    width: 60px;
    height: 80px;
    background-color: #0075bf;
    color: white;
    font-size: 52px;
}

#trillium{
    width: 170px;
    top: 180px;
    left: 75px;
}

.btn1{
    margin-top: 15px;
    margin-left: 500px;
}

.btn2{
    margin-left: 850px;
}

.btn3{
    margin-left: 1200px;

}

.click-through {
    pointer-events: none;
}

#start-btn {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: end;
    align-items: center;
    padding: 100px;
}

.screen img {
    display: block;
}

#screen2{
    width: 2000px;
    height: 1000px;
}

#screen2_box{
    width: 2000px;
    height: 700px; 
    padding: 200px;
    display: flex;
    flex-wrap: wrap;
}

.screen div, .screen p{
   position: static;
}

#history{
    font-size: 35px;
    color: #0075bf;
    font-weight: 700px;
    text-align:center;
    margin-top: 100px;
}

.his_box p{
    font-size: 15px;
    color: #0075bf;
    font-weight: 300px;
}

.box_img{
    height:130px;
    width: 120px;

}

.his_box{
    width: 250px;
    margin-right:20px;
    margin-left: -20px;
    height: 400px;
    background-color: white;
    border: #0075bf 3px solid;
    display: flex;
    flex-wrap: wrap;
}

.his_box p {
    padding: 15px;
}

.line{
    width: 50px;
    height: 20px;
    background-color: #0075bf;
    position: absolute;
    transform: translate(-20px, 190px);

}
.screen{
    position: relative;
}

/* screen 2 :start */


.heading2 {
    margin: 40px 0px 0px 495px ;
    text-align: center;
}

.blockImg {
   margin-left: 600px;
}

.block1 {
    margin: 600px 0px 0px -450px ;
}

.block2 {
    margin: 110px 0px 0px -90px ;
}

.block3 {
    margin: 600px 0px 0px 250px ;
}

.block4 {
    margin: 110px 0px 0px 610px ;
}

.block5 {
    margin: 600px 0px 0px 950px ;
}
.line {
    width: 1000px;
    height: 10px;
    background-color: #0075bf;
    margin: 0px 0px 0px 380px;
}

.line {
    margin: 330px 0px 0px 380px ;
    width: 1260px;
}

.year1 {
    margin: 470px 0px 0px 180px ;
}

.year2 {
    margin: 380px 0px 0px 540px ;
}

.year3 {
    margin: 500px 0px 0px 880px ;
}

.year4 {
    margin: 380px 0px 0px 1235px ;
}

.year5 {
    margin: 500px 0px 0px 1600px ;
}

/* screen 3 :start */

.heading3 {
    margin: 40px 0px 0px 400px;
}

.t1 {
    margin: 150px 0px 0px 200px;
}

.t3 {
    margin: 840px 0px 0px 820px;
}

.t4 {
    margin: 150px 0px 0px 1450px;
}

.screen3pic1 {
    margin: 260px 0px 0px 165px;
}

.screen3pic3 {
    margin: 500px 0px 0px 805px;
}

.screen3pic4 {
    margin: 260px 0px 0px 1425px;
}

.footerp31 {
    margin: 600px 0px 0px 135px;
}

.footerp33 {
    margin: 150px 0px 0px 770px;
}

.footerp34 {
    margin: 600px 0px 0px 1400px;
}

/* screen 4 :start */

.heading4 {
    margin: 20px 0px 0px 100px;
}

.box {
    margin: 70px 0px 0px 1100px;
}

.boxText {
    margin: 120px 0px 0px 1135px;
}

.hightlight1{
    margin: 183px 0px 0px 507px;
}

.hightlight2{
    margin: 423px 0px 0px 300px;
}

.hightlight3{
    margin: 284px 0px 0px 658px;
}

.hightlight4{
    margin: 647px 0px 0px 987px;
}

.line1{
    margin: 270px 0px 0px 318px;
}

.line2{
    margin: 605px 0px 0px 302px;
}

.line3{
    margin: 613px 0px 0px 740px;
}

.line4{
    margin: 730px 0px 0px 1260px;
}

.bird1 {
    margin: 200px 0px 0px 120px;
}

.bird2 {
    margin: 700px 0px 0px 135px;
}

.bird3 {
    margin: 693px 0px 0px 647px;
}

.bird4 {
    margin: 730px 0px 0px 1438px;
}