body,
html {
  /* width: 100%;
  height: 100%; */
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

@font-face {
  font-family: 'Athena';
  src: url('Athena-Regular.woff2') format('woff2'),
      url('Athena-Regular.woff') format('woff');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

body {
  font-family: 'Athena';
  background-color: #f9fcff;
}


/* Nav */
.links {
  position: fixed;
  top: 0;
  left: 0;
  width: 135px;
  background-image: url(./images/bg.png);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}

#btn_nav {
  width: 120px;
  height: 40px;
  background-color: #0e879f;
  border: none;
  border-radius: 25px;
  text-align: center;
  justify-content: center;
  align-items: center;
  margin-bottom: 1rem;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}

#btn_nav a {
  color: #f1f1f1;
  text-decoration: none;
  font-size: 1rem;
  font-family: 'Athena';
  cursor: pointer;
}

#btn_nav:hover {
  scale: 1.05;
}

#nav_logo {
  width: 100%;
}

/* Hidden Hamburger menu*/

#menuToggle {
  display: none;
}

/* cover_pic */

.cover_pic {
  width: 93%;
  margin-top: -1rem;
  margin-left: 8rem;
}

.cover_pic img{
  width: 100%;
}

.sections{
  width: 100%;
  margin: auto;
  display: flex;
  justify-content: center;
  text-align: center;
  align-items: center;
  line-height: 2.5rem;
}

.sections h1 {
  font-size: 2rem;
  color: #0e879f;
  text-align: center;
}

.sections p {
  font-size: 1.4rem;
  color: #5b6670;
  text-align: left;
}

.section_1 {
  width: 80%;
  margin-top: 3rem;
  margin-left: 9rem;
  display: block;
  justify-content: center;
  text-align: center;
}

.section_2 {
  width: 85%;
  margin-top: 3rem;
  margin-left: 11rem;
  display: block;
  justify-content: center;
  text-align: center;
}

.section_2 h1 {
  font-size: 2rem;
  color: #0e879f;
  text-align: center;
}

iframe {
  margin-top: 1rem;
  border: none;
  border-radius: 5px;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}

/* #video_larger {
  display: block;
}

#video_mid, #video_mid_768, #video_small {
  display: none;
} */

video {
  border-radius: 5px;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}

.section_4 {
  width: 80%;
  margin-top: 6rem;
  margin-left: 13rem;
  margin-bottom: 5rem;
  display: flex;
  justify-content: center;
}


.section_4 img {
  width: 30%;
}


@media screen and (min-width: 1800px) and (max-width: 2000px){
  
/* Nav */
.links {
  position: fixed;
  top: 0;
  left: 0;
  width: 135px;
  background-image: url(./images/bg.png);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}

#btn_nav {
  width: 120px;
  height: 40px;
  background-color: #0e879f;
  border: none;
  border-radius: 25px;
  text-align: center;
  justify-content: center;
  align-items: center;
  margin-bottom: 1rem;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}

#btn_nav a {
  color: #f1f1f1;
  text-decoration: none;
  font-family: 'Athena';
  cursor: pointer;
}

#btn_nav:hover {
  scale: 1.05;
}

#nav_logo {
  width: 100%;
}

/* Hidden Hamburger menu*/

#menuToggle {
  display: none;
}

/* cover_pic */

.cover_pic {
  width: 93%;
  margin-top: -1rem;
  margin-left: 8rem;
}

.cover_pic img{
  width: 100%;
}

.sections{
  width: 100%;
  margin: auto;
  display: flex;
  justify-content: center;
  text-align: center;
  align-items: center;
  line-height: 2.5rem;
}

.sections h1 {
  font-size: 2rem;
  color: #0e879f;
  text-align: center;
}

.sections p {
  font-size: 1.4rem;
  color: #5b6670;
  text-align: left;
}

.section_1 {
  width: 80%;
  margin-top: 3rem;
  margin-left: 9rem;
  display: block;
  justify-content: center;
  text-align: center;
}

.section_2 {
  width: 85%;
  margin-top: 3rem;
  margin-left: 12rem;
  display: block;
  justify-content: center;
  text-align: center;
}

.section_2 h1 {
  font-size: 2rem;
  color: #0e879f;
  text-align: center;
}

iframe {
  margin-top: 1rem;
  border: none;
  border-radius: 5px;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}

/* #video_larger {
  display: block;
}

#video_mid, #video_mid_768, #video_small {
  display: none;
} */

video {
  border-radius: 5px;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}

.section_4 {
  width: 80%;
  margin-top: 6rem;
  margin-left: 12rem;
  margin-bottom: 5rem;
  display: flex;
  justify-content: center;
}

.section_4 img {
  width: 30%;
}

}


/* Tablet view - Large */

@media screen and (min-width: 1024px) and (max-width: 1366px){

  /* Hidden Hamburger menu*/
  
  #menuToggle {
    display: none;
  }
  
/* cover_pic */

.cover_pic {
  width: 90%;
  margin-top: 0rem;
  margin-left: 8rem;
}

.cover_pic img{
  width: 100%;
}

.sections{
  width: 100%;
  margin: auto;
  display: flex;
  justify-content: center;
  text-align: center;
  align-items: center;
  line-height: 2.5rem;
}

.sections h1 {
  font-size: 2rem;
  color: #0e879f;
  text-align: center;
}

.sections p {
  font-size: 1.4rem;
  color: #5b6670;
  text-align: left;
}

.section_1 {
  width: 80%;
  margin-top: 3rem;
  margin-left: 9rem;
  display: block;
  justify-content: center;
  text-align: center;
}

.section_2 {
  width: 85%;
  margin-top: 3rem;
  margin-left: 9rem;
  display: block;
  justify-content: center;
  text-align: center;
}

.section_2 h1 {
  font-size: 2rem;
  color: #0e879f;
  text-align: center;
}

iframe {
  margin-top: 1rem;
  border: none;
  border-radius: 5px;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}

/* #video_large, #video_mid_768, #video_small {
  display: none;
}

#video_mid {
  display: block;
}  */

video {
  width: 95%;
  height: 95%;
  border-radius: 5px;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}

.section_4 {
  width: 80%;
  margin-top: 6rem;
  margin-left: 10rem;
  margin-bottom: 5rem;
  display: flex;
  justify-content: center;
}

.section_4 img {
  width: 30%;
}

}




/* Tablet view - Small */

@media screen and (min-width: 768px) and (max-width: 1023px){
/* Hidden Hamburger menu*/

#menuToggle {
  display: none;
}

/* cover_pic */

.cover_pic {
  width: 85%;
  margin-top: 0rem;
  margin-left: 8rem;
}

.cover_pic img{
  width: 100%;
}

.sections{
  width: 100%;
  margin: auto;
  display: flex;
  justify-content: center;
  text-align: center;
  align-items: center;
  line-height: 1.5rem;
}

.sections h1 {
  font-size: 1.8rem;
  color: #0e879f;
  text-align: center;
}

.sections p {
  font-size: 1.2rem;
  color: #5b6670;
  text-align: left;
}

.section_1 {
  width: 80%;
  margin-top: 3rem;
  margin-left: 9.5rem;
  display: block;
  justify-content: center;
  text-align: center;
}

.section_2 {
  width: 85%;
  margin-top: 3rem;
  margin-left: 8rem;
  display: block;
  justify-content: center;
  text-align: center;
}

.section_2 h1 {
  font-size: 1.8rem;
  color: #0e879f;
  text-align: center;
}

iframe {
  margin-top: 1rem;
  border: none;
  border-radius: 5px;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}

/* #video_large, #video_mid, #video_small {
  display: none;
}

#video_mid_768 {
  display: block;
  margin-left: 3rem;
}  */

video {
  width: 90%;
  height: 90%;
  border-radius: 5px;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}

.section_4 {
  width: 80%;
  margin-top: 6rem;
  margin-left: 8rem;
  margin-bottom: 5rem;
  display: flex;
  justify-content: center;
}

.section_4 img {
  width: 40%;
}

}



/* Mobile View - reveal Hamburger Menu */

@media screen and (min-width: 375px) and (max-width: 767px){

/* Hamburger Menu */
  
#menuToggle {
  visibility: visible;
  display: block;
  position: relative;
  top: 20px;
  left: 10px;
  -webkit-user-select: none;
  user-select: none;
}

#menuToggle a {
  text-decoration: none;
  color: #0e879f;
  transition: color 0.3s ease;
}

#menuToggle a:hover{
  color: #5b6670;
}

#menuToggle input{
  display: block;
  width: 40px;
  height: 32px;
  position: absolute;
  top: -7px;
  left: -5px;
  cursor: pointer;
  opacity: 0; 
  z-index: 2; 
  -webkit-touch-callout: none;
}

#menuToggle span{
  display: block;
  width: 33px;
  height: 4px;
  margin-bottom: 5px;
  position: relative;
  background: #0e879f;
  border-radius: 3px;
  z-index: 1;
  transform-origin: 4px 0px;
}

#menuToggle span:first-child{
  transform-origin: 0% 0%;
}

#menuToggle span:nth-last-child(2){
  transform-origin: 0% 100%;
}

/* Hamburger to a cross when clicked*/
#menuToggle input:checked ~ span{
  opacity: 1;
  transform: rotate(45deg) translate(-2px, -1px);
  background: #0e879f;
}


#menuToggle input:checked ~ span:nth-last-child(3){
  opacity: 0;
  transform: rotate(0deg) scale(0.2, 0.2);
}

#menuToggle input:checked ~ span:nth-last-child(2){
  transform: rotate(-45deg) translate(0, -1px);
}


#menu {
  position: absolute;
  width: 135px;
  height: 250px;
  margin: -100px 0 0 -5px;
  padding-top: 68px;
  list-style-type: none;
  transform-origin: 0% 0%;
  transform: translate(-300%, 0);
  transition: transform 0.5s cubic-bezier(0.77,0.2,0.05,1.0);
  display: flex; /*make the menu display flex */
  gap: 10px;
}

#menu li{
  font-size: 0.8rem;
}

#menu button {
  width: 100px;
  height: 30px;
  background-color: #0e879f;
  color: #f9fcff;
  border: none;
  border-radius: 25px;
  display: flex;
  text-align: center;
  justify-content: center;
  align-items: center;
  font-family: 'Athena';
  font-size: 0.8rem;
  margin-bottom: 0.8rem;
  /* cursor: pointer; */
}

#menuToggle input:checked ~ ul {
  transform: none;
}

.links {
  display: none;
}

/* cover_pic */

.cover_pic {
  width: 100%;
  margin-top: 2rem;
  margin-left: 0rem;
}

.cover_pic img{
  width: 100%;
}

.sections{
  width: 100%;
  margin: auto;
  display: flex;
  justify-content: center;
  text-align: center;
  align-items: center;
  line-height: 1rem;
}

.section_1 {
  width: 90%;
  margin-top: 2rem;
  margin-left: 0rem;
  display: block;
  justify-content: center;
  text-align: center;
}

.sections h1 {
  font-size: 1.2rem;
  color: #0e879f;
  text-align: center;
}

.sections p {
  font-size: 0.8rem;
  color: #5b6670;
  text-align: left;
}


.section_2 {
  width: 90%;
  margin-top: 2rem;
  margin-left: 1rem;
  display: block;
  justify-content: center;
  text-align: center;
}

.section_2 h1 {
  font-size: 1.2rem;
  color: #0e879f;
  text-align: center;
}

iframe {
  margin-top: 1rem;
  border: none;
  border-radius: 5px;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}

/* #video_large, #video_mid, #video_mid_768 {
  display: none;
}

#video_small {
  display: block;
  margin-left: 3rem;
}  */

video {
  width: 95%;
  height: 95%;
  border-radius: 5px;
  box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}

.section_4 {
  width: 100%;
  margin-top: 3rem;
  margin-left: 0rem;
  margin-bottom: 5rem;
  display: flex;
  justify-content: center;
}

.section_4 img {
  width: 40%;
}
}