@import url('https://fonts.googleapis.com/css2?family=Josefin+Sans:wght@300;400;500;600;700&display=swap');

body {
  font-family: 'Josefin Sans', sans-serif;
  background: #f5f5f5;
  background-image: radial-gradient(black 1px, transparent 0);
  background-size: 40px 40px;
  background-position: -19px -19px;
}

.page {
  height: 80vh;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 auto;
  padding: 50px;
  /*border: yellow 1px solid;*/
}

.page-area {
  display: flex;
  height: 100%;

  align-items: center;
  /*border: orange 1px solid;*/
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  /*border: red 1px solid;*/
}

.header {
  text-align: center;
  margin-bottom: 20px;
  color: rgb(59, 59, 59);
  background-color: #f5f5f5;
}

h1 {
  font-size: 60px;
  color: rgb(59, 59, 59);
}

#video-container-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  width: 800px;
}

#video-container {
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
  background-color: #f5f5f5;
}

#video {
  display: block;
  background-color: #f5f5f5;
  margin: 0 auto;
}

#score-counter {
  position: absolute;
  top: calc(50% - 200px);
  transform: translateY(-50%);
  background-color: rgba(80, 86, 116, 0.2);
  width: 260px;
  border-radius: 10px;
  background-color: #fff;
  border: 1px solid #ccc;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
  padding: 15px 20px;
  text-align: center;
  font-size: 1rem;
}

#score-counter {
  right: 20px;
}

#reference-image {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  right: 20px;
  width: 300px;
  height: 300px;
  background-color: #eee;
  border: 1px solid #ccc;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
  border-radius: 10px;
  overflow: hidden;
  background-color: #62ae4e;
}

#reference-image .bg-text {
  color: white;
  font-size: 20px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(2);
  z-index: 1;
  -ms-transform: translate(-50%, -50%);
}

#reference-image img {
  position: absolute;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 1;
  z-index: 4;
  transition: 200ms ease all;
}

.mastered-image {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  left: 70px;
  width: 150px;
  height: 150px;
  padding: 20px;
  background-color: #fff;
  border: 1px solid #ccc;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
  border-radius: 10px;
  overflow: hidden;
}

.mastered-image {
  position: absolute;
  display: block;
  object-fit: cover;
  opacity: 1;
  z-index: 4;
  transition: 200ms ease all;
}

.button {
  text-align: center;
  padding-top: 5p x;
  padding-bottom: 12px;
  margin-top: 0px;
  display: flex;
  list-style-type: none;
  width: 650px;
  justify-content: space-around;
  padding-top: 10px;
  font-size: 20px;
}

#overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.2);
  z-index: 2;
  backdrop-filter: blur(10px);
}

#overlay-settings {
  position: absolute;
  max-width: 500px;
  top: calc(50%);
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  padding: 20px;
  backdrop-filter: blur(5px);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.15);
}

#overlay-settings * {
  text-align: center;
  margin: 10px auto;
}

#overlay-settings a {
  display: block;
}

#overlay-settings input {
  padding: 4px 8px;
  border-radius: 5px;
  border: 3px solid #ccc;
  outline: none;
  font-size: 1rem;
}

#overlay-settings input:focus {
  border: 3px solid #66709c;
}

a,
a:visited {
  font-size: 20px;
  display: inline-block;
  background-color: #7681b3;
  color: #f5f5f5;
  text-decoration: none;
  padding: 0.5rem;
  width: 180px;
  border-radius: 30px;
}

a:hover {
  background-color: #66709c;
  color: #f5f5f5;
}

a:active {
  background-color: #505674;
  color: #f5f5f5;
}

#back {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 80px;
  text-align: center;
  font-size: 1rem;
  background: none;
  color: rgb(59, 59, 59);
  transition: 200ms ease-in-out left;
}

#back * {
  font-size: 3rem;
  background: #f5f5f5;
}

#back:hover {
  left: 5px;
}

#prediction {
  display: none;
}

#overlay-text {
  position: absolute;
  bottom: 0;
  left: 0;
  background-color: rgba(80, 86, 116, 0.2);
  display: inline;
  padding: 10px;
  width: 60px;
  height: 60px;
  font-size: 3rem;
  text-align: center;
  border-top-right-radius: 10px;
  z-index: 5;
}

video {
  -webkit-transform: scaleX(-1);
  transform: scaleX(-1);
  object-fit: cover;
}

li {
  text-decoration: none;
}

#timer {
  width: 0%;
  height: 5px;
  position: relative;
  background-color: #62ae4e;
}

#learning-label,
#mastered-label {
  width: 180px;
  height: 30px;
  border-radius: 30px;
  text-align: center;
  font-size: 25px;
  padding-top: 5px;
  position: absolute;
  border-style: dashed;
  border-radius: 5px;
  border-color: rgba(0, 0, 0, 0.5);
  color: rgba(0, 0, 0, 0.5);
}

#mastered-label {
  bottom: 0;
  left: 0;
  margin: 20px 40px;
  background-color: #f5f5f5;
}

#learning-label {
  bottom: 0;
  right: 0;
  margin: 20px 40px;
  background-color: #f5f5f5;
}

#start:hover {
  cursor: pointer;
}

video:hover {
  cursor: pointer;
}

#smalllink {
  color: #505674;
  background: none;
  padding: 0;
  transition: 400ms ease-in-out color;
}

#smalllink:hover {
  cursor: pointer;
  color: #000;
}

.image-container {
  display: flex;
  justify-content: space-around;
  width: 200px;
  height: 200px;
  box-shadow: 5px 5px 20px rgb(166, 165, 165);
  margin: 10px;
  background-color: white;
}

.letter-image {
  margin-top: 20px;
  width: 150px;
  border-radius: 10px;
  background-color: white;
}


#section3 {
  position: absolute;
  top: 200vh;
  width: 100vw;
  height: 100%;
  font-size: 1rem;
  text-align: center;
  background: #f5f5f5;
  background-image: radial-gradient(black 1px, transparent 0);
  background-size: 40px 40px;
  background-position: -19px -19px;
}

#section3-text {
  padding: 40px;
  width: 95%;
  font-size: 1rem;
  text-align: center;
}

.row {
  display: flex;
  flex-wrap: wrap;
  padding: 0 2px;
}

.column {
  flex: 60%;
  padding: 0 2px;
}

.column img {
  margin-top: 4px;
  vertical-align: middle;
}

.flashcards {
  position: absolute;
  justify-content: center;
  align-items: center;
  text-align: center;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 5px 5px 12px rgb(137, 137, 137);
  border-radius: 10px;
  width: 800px;
  height: 70%;
  background: #f5f5f5;
}