body {
  margin: 0;
  box-sizing: border-box;
  font-family: 'Work Sans', sans-serif;
  background-color: #2aa353;
  color: white;
}

a {
  font-weight: bold;
  text-decoration: none;
  color: #2aa353;
}

a:hover {
  color: #fc6203;
}

.content,
.section,
.footer,
.map-container,
.slides {
  border: 0px solid white;
}

.super {
}

.section {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.section-sticky {
  height: 100vh;
  position: sticky;
  top: 0;
  z-index: -1;
}

.footer {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: #2aa353;
  color: white;
}

.slide {
  width: 20rem;
  margin-left: auto;
  margin-right: 3rem;
  margin-bottom: 90vh;
  margin-top: 5vh;
  background-color: #ffffffbf;
  color: #000000;
  padding: 1rem;
  border-radius: 5px;
}

.slide:first-child {
  opacity: 0;
  margin-top: -120vh;
  z-index: 100;
}

#slide-20 {
  opacity: 1;
  margin-top: 0vh !important;
}

.slide:last-child {
  margin-bottom: 90vh;
}

.map {
  height: 100%;
}

.map-container {
  position: sticky;
  height: 100vh;
  top: 0;
  z-index: -1;
}

.slide-complete {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 105vh;
  width: 100% ;
  background-color: transparent;
  color: white;
}

h1 {
  font-weight: 800;
  font-size: 6rem;
  margin-top: auto;
  margin-bottom: auto;
  width: 100%;
}

h2 {
  font-weight: 600;
  font-size: 4rem;
}

h3 {
  font-weight: 400;
  font-size: 2.5rem;
}

h4 {
  font-weight: 400;
}

h5 {
  font-weight: 200;
}

h6 {
  font-weight: 200;
  justify-content: center;
}

h7 {
  font-weight: 200;
  justify-content: center;
}


#title {
  text-align: center;
}

#subtitle {
  text-align: center;
}

p {
  font-weight: 300;
  max-width: 75vw;
}

.ps {
  font-weight: 300;
}

#credit {
  text-align: center;
}

.slide img {
  width: 100%;
  margin-top: 12px;
}

.points {
  margin-top: 0px !important;
}

.header {
  position: sticky;
  top: 0;
  background-color:  #ffffffbf;
  opacity: 1;
  transition: all 1.5s;
  height: 6vh;
  z-index: 5;
}

.hidden {
  background-color: white;
  opacity: 0;
  transition: all 1.5s;
}

.bttn-container {
  display: flex;
  flex-direction: row-reverse;
  margin-right: 3rem;
}

.btn {
  margin: 5px;
  transition: all 1.5s;
  outline-color: #fc6203 !important;
  box-shadow: none !important;
}

.btn-primary {
  color: #ffffff;
  background-color: #2aa353;
  border-color: #2aa353;
}

.btn-outline-primary {
  color: #2aa353;
  border-color: #2aa353;
  border-width: 2px;
}

.btn-primary:hover, .btn-primary:focus, .btn-primary:active, .btn-primary.active, .open>.dropdown-toggle.btn-primary {
    color: #ffffff;
    background-color: #fc6203;
    border-color: #fc6203;
}

.btn-outline-primary:hover, .btn-outline-primary:focus, .btn-outline-primary:active, .btn-outline-primary.active, .open>.dropdown-toggle.btn-outline-primary {
    color: #fc6203;
    background-color: #ffffffff;
    border-color: #fc6203;
}

.title-container {
  position: static;
}

.subtitle-container, .diagram-container {
  position: static;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.action-panel {
  display: flex;
  flex-basis: 100%;
  height: 25vw;
  width: auto;
  background-color: #2aa353;
  color: #ffffffbf;
  margin: 1px;
  padding: 1rem;
  border-radius: 4px;
  align-items: center;
  justify-content: center;
}

#panels {
  flex-direction: row !important;
  align-items: center;
  gap: 12px;
}

.diagram-container {
  width: 80vw;
  height: auto;
  background-color: #ffffff;
  color: #000000;
  padding: 1rem;
  border-radius: 10px;
  margin-top: 2vh;
  margin-bottom: 8vh;
  opacity: 90%;
}

.diagram {
  width: 100%;
  height: auto;
  max-width: 80vw;
  max-height: 57vh;
  object-fit: contain;
}

.quote-container {
  position: static;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.quote {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 18pt;
  max-width: 80vw;
}

.quote-author {
  font-family: 'Cormorant Garamond', serif;
  font-style: normal;
  font-size: 18pt;
  font-weight: 600;
  align-self: flex-end;
  margin-left: 20vw;
}

.title-credits {
  position: static;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 0rem;
}

.title-bttn-container {
  position: relative;
  display: flex;
  flex-direction: column;
  margin-top: 4rem;
}

#title-bttn-primary {
  background-color: transparent;
  border-color: #ffffff;
  border-width: 1px;
  color: #ffffff;
}

#title-bttn-primary:hover, #title-bttn-primary:focus, #title-bttn-primary:active {
  background-color: #ffffff;
  border-color: #ffffff;
  border-width: 1px;
  color: #2aa353;
  outline-color: #fc6203 !important;
}

#title-bttn {
  background-color: transparent;
  border-color: transparent;
  border-width: 1px;
  color: #ffffff;
}

#title-bttn:hover, #title-bttn:focus, #title-bttn:active {
  background-color: transparent;
  border-color: #fc6203;
  border-width: 1px;
  color: #fc6203;
  outline-color: #fc6203 !important;
}

#background-gif {
    width:100%;
    height:100%;
    object-fit: cover;
}

#slides-01 {
  z-index: -2;
  top: -150vh;
}


/* animated arrows for scroll down */
.arrows {
	width: 60px;
	height: 72px;
	position: static;
	left: 50%;
	margin-bottom: 10px;
	bottom: 20px;
}

.arrows path {
	stroke: #ffffffbf;
	fill: transparent;
	stroke-width: 1px;
	animation: arrow 2s infinite;
	-webkit-animation: arrow 2s infinite;
}

@keyframes arrow
{
0% {opacity:0}
40% {opacity:1}
80% {opacity:0}
100% {opacity:0}
}

@-webkit-keyframes arrow /*Safari and Chrome*/
{
0% {opacity:0}
40% {opacity:1}
80% {opacity:0}
100% {opacity:0}
}

.arrows path.a1 {
	animation-delay:-1s;
	-webkit-animation-delay:-1s; /* Safari 和 Chrome */
}

.arrows path.a2 {
	animation-delay:-0.5s;
	-webkit-animation-delay:-0.5s; /* Safari 和 Chrome */
}

.arrows path.a3 {
	animation-delay:0s;
	-webkit-animation-delay:0s; /* Safari 和 Chrome */
}