@font-face {
    font-family: Bangla MN;
    src: url(../fonts/Bangla\ MN.ttc);
  }
@font-face {
    font-family: Optima;
    src: url(../fonts/Optima.ttc);
}

@font-face {
    font-family: Helvetica;
    src: url(../fonts/Helvetica.ttc);
}

html {
    scroll-behavior: smooth;
    font-size: 62.5%;
}

*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: inherit; 

}

body {
    margin: 0;
    padding: 0;
}

header {
    --text: #f4f4f4;
    --text-inverse: #333;
    --background: transparent;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2em 3em;
    transition: background 250ms ease-in;
    background: var(--background);
    color: var(--text);
    font-family: Bangla MN;
  }

  .nav__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
  }


  .nav__link {
    --spacing: 1em;
    text-decoration: none;
    color: inherit;
    display: inline-block;
    padding: calc(var(--spacing) / 2) var(--spacing);
    position: relative;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.9rem;
  }
  
  .nav__link:after {
    content: "";
    position: absolute;
    bottom: 0;
    left: var(--spacing);
    right: var(--spacing);
    height: 2px;
    background: currentColor;
    -webkit-transform: scaleX(0);
            transform: scaleX(0);
    transition: -webkit-transform 150ms ease-in-out;
    transition: transform 150ms ease-in-out;
    transition: transform 150ms ease-in-out, -webkit-transform 150ms ease-in-out;
  }
  
  .nav__link:hover::after {
    -webkit-transform: scaleX(1);
            transform: scaleX(1);
  }
  
  .nav__link--btn {
    border: 1.5px solid currentColor;
    border-radius: 2em;
    margin-left: 1em;
    transition: background 250ms ease-in-out;
    letter-spacing: 1px;
    padding: 0.75em 1.5em;
  }
  
  .nav__link--btn:hover {
    background: var(--text);
    color: var(--text-inverse);
    border-color: var(--text);
  }
  
  .nav__link--btn::after {
    display: none;
  }
  
  .nav__link--btn--highlight {
    background: limegreen;
    border-color: limegreen;
    color: #333;
  }
  
  .nav__link--btn--highlight:hover {
    background: var(--text);
    border-color: var(--text);
  }
  
  .nav-scrolled {
    --text: #333;
    --text-inverse: #f4f4f4;
    --background: #f4f4f4;
    box-shadow: 0 3px 20px rgba(0, 0, 0, 0.2);
  }


  .timeline {
      position: fixed;
      top: 50%;
      transform: translateY(-50%);
      z-index: 50;
      opacity: 0.5;
  }

  .timeline ul {
      padding-left: 50px;
      position: relative;
  }
  .timeline ul::after {
      content:'';
      position: absolute;
      width: 3px;
      height: calc(100% - 58px);
      left: 40px;
      top: 0;
      background: #4D5D4A;
      z-index: -1;
      margin-top: 29px;

  }

  .timeline ul li {
      padding: 30px 0; 
      padding-left: 20px;
      font-family: Helvetica;

  }

  .timeline ul li a {
      text-decoration: none;
      position: relative; 
      color: #333;
      font-size: 1.5rem;
      line-height: 1rem;
      font-weight: 300;
  }

  .timeline ul li a:before {
    content: '';
    position: absolute;
    background: #4D5D4A;
    width: 18px;
    height: 18px;
    left: -42px;
    top: 50%;
    transform: translateY(-50%);
    border-radius: 50px;
    border: 4px solid #4D5D4A;
    transition: background 250ms;
  }

  .timeline ul li a.active{
    font-weight: 500;
  }

  .timeline ul li a.active::before {
      background: #E6E7D5;
  }
#fade_in{
    opacity: 0; 
    transition: opacity 0.5s ease-in;
}
#fade_in.appear {
    opacity: 1;
}

/* Section 1*/

.section1 {
    position:relative;
	display: block;
	height: 100vh;
    width: 100vw;
    z-index: 100;
}

.header_container {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

    
#title {
    position: absolute;
    font-family : Optima;
    font-size : 160px;
    letter-spacing : 21.6px;
    text-align: center;
    color : #E6E7D5;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
}

/* Section 2*/

#section2 {
    position:relative;
	display: block;
	height: 100vh;
	width: 100vw;
}

#nineteen_53{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 70%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}



.parallax {
    background: url(../img/timeline/timelinebg.png) repeat fixed 100%;
    background-size: cover;  
}

.parallax-inner {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.test_this {
    position: static;
    width: 95%;
    height: 95%;
    object-fit: cover;
}

.bodycopy00 {
    position: absolute;
    display: block;
    width: 65%;
    top: 50%;
    left: 40%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}



/* section3 */

#section3 {
    position:relative;
	display: block;
	height: 100vh;
	width: 100vw;
}

.bodycopy1 {
    position: relative;
    display: block;
    width: 65%;
    top: 50%;
    left: 60%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#nineteen_80{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 20%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}
/*section 4 */

#section4 {
    position:relative;
	display: block;
	height: 80vh;
	width: 100vw;
}

.bodycopy2 {
    position: relative;
    display: block;
    width: 45%;
    top: 50%;
    left: 60%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#nineteen_81{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 80%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}

#play{
    position: absolute;
    display: block;
    width: 20px;
    top: 50%;
    left: 15%;
    transform: translate(-50%, -50%);
}


/*section 5 */

#section5 {
    position:relative;
	display: block;
	height: 80vh;
	width: 100vw;
}

.bodycopy3 {
    position: relative;
    display: block;
    width: 50%;
    top: 50%;
    left: 30%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#nineteen_82{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 40%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}

/*section 6 */

#section6 {
    position:relative;
	display: block;
	height: 80vh;
	width: 100vw;
}

.bodycopy4 {
    position: relative;
    display: block;
    width: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#nineteen_83{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 70%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}

/*section 7 */

#section7 {
    position:relative;
	display: block;
	height: 80vh;
	width: 100vw;
}

.bodycopy5 {
    position: relative;
    display: block;
    width: 65%;
    top: 50%;
    left: 60%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#nineteen_84{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 20%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}

/*section 8 */

#section8 {
    position:relative;
	display: block;
	height: 80vh;
	width: 100vw;
}

.bodycopy7 {
    position: relative;
    display: block;
    width: 55%;
    top: 50%;
    left: 40%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#nineteen_87{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 70%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}

/*section 9 */

#section9 {
    position:relative;
	display: block;
	height: 80vh;
	width: 100vw;
}

.bodycopy8 {
    position: relative;
    display: block;
    width: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#nineteen_88{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 15%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}
/*section 10 */

#section10 {
    position:relative;
	display: block;
	height: 80vh;
	width: 100vw;
}

.bodycopy9 {
    position: relative;
    display: block;
    width: 90%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#nineteen_89{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 70%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}

/*section 11 */

#section11 {
    position:relative;
	display: block;
	height: 80vh;
	width: 100vw;
}

.bodycopy10 {
    position: relative;
    display: block;
    width: 50%;
    top: 50%;
    left: 30%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#nineteen_91{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 60%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}

/*section 12 */

#section12 {
    position:relative;
	display: block;
	height: 80vh;
	width: 100vw;
}

.bodycopy11 {
    position: relative;
    display: block;
    width: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#nineteen_93{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 70%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}
/*section 13 */

#section13 {
    position:relative;
	display: block;
	height: 80vh;
	width: 100vw;
}

.bodycopy12 {
    position: relative;
    display: block;
    width: 50%;
    top: 50%;
    left: 60%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#nineteen_94{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 20%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}

/*section 14 */

#section14 {
    position:relative;
	display: block;
	height: 80vh;
	width: 100vw;
}

.bodycopy13 {
    position: relative;
    display: block;
    width: 50%;
    top: 50%;
    left: 70%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#nineteen_99{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 40%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}

/*section 15 */

#section15 {
    position:relative;
	display: block;
	height: 80vh;
	width: 100vw;
}

.bodycopy14 {
    position: relative;
    display: block;
    width: 50%;
    top: 50%;
    left: 40%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#two_002{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 70%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}
/*section 16 */

#section16 {
    position:relative;
	display: block;
	height: 80vh;
	width: 100vw;
}

.bodycopy16 {
    position: relative;
    display: block;
    width: 50%;
    top: 50%;
    left: 60%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#twenty_15{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 80%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}
/*section 17 */

#section17 {
    position:relative;
	display: block;
	height: 80vh;
	width: 100vw;
}

.bodycopy17 {
    position: relative;
    display: block;
    width: 50%;
    top: 50%;
    left: 70%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#twenty_18{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 30%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}

/*section 18 */

#section18 {
    position:relative;
	display: block;
	height: 100vh;
	width: 100vw;
}

.bodycopy18 {
    position: relative;
    display: block;
    width: 65%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 3;
}

#twenty_19{
    position: absolute;
    display: block;
    width: 200px;
    top: 50%;
    left: 70%;
    transform: translate(-50%, -50%);
    margin: 3rem;
    line-height: 10rem;
    z-index: 1;
}

/*ABOUT PAGE*/

#about {
    position:relative;
	display: block;
	height: 100vh;
    width: 100vw;
    z-index: 101;
}
.about_page {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about_header{
    position: absolute;
    width: 20%;
    top: 14%;
    left: 48%;
    transform: translate(-50%, -50%);
    margin: 0;
    font-family: Optima;
    color: #E6E7D5;
    font-size: 8rem;
}
.about_page_text{
    position: absolute;
    display: block;
    width: 90%;
    top: 58%;
    left: 52%;
    transform: translate(-50%, -50%);
    margin: 0;

}
/*FOOTER*/
.footer {
    position: relative;
    display: block;
    background : #034E4D;
    width: 100%;
    height: 150px;
    z-index: 102;
}

.table_mtn{
    position: absolute;
    display: block;
    width: 28%;
    top: 58%;
    left: 17%;
    transform: translate(-50%, -50%);
    margin: 0;
}

.designedBy {
    position: absolute;
    display: block;
    width: 17%;
    top: 58%;
    left: 13%;
    transform: translate(-50%, -50%);
    margin: 0;
}

.copyright {
    position: absolute;
    display: block;
    width: 20%;
    top: 58%;
    left: 40%;
    transform: translate(-50%, -50%);
    margin: 0;
}

.youtube {
    position: absolute;
    display: block;
    width: 6%;
    top: 58%;
    left: 82%;
    transform: translate(-50%, -50%);
    margin: 0;
}

.facebook {
    position: absolute;
    display: block;
    width: 7%;
    top: 58%;
    left: 93%;
    transform: translate(-50%, -50%);
    margin: 0;
}