* {
  box-sizing: border-box;
}

h1 {
  text-align: center;
}

.container {
  display: flex;
  margin: auto;
  flex-wrap: wrap;
  gap: 20px;
}

.box {
  min-height: 35vh;
  width: 100%;
  flex: 1 0 40%;
  border: 2px solid black;
  padding: 30px;
}

.box:last-child {
  background-color: #bee9f8;
}

/* Rainbow Progress Bar */

.progress-bar {
  height: 20px;
  width: 0%;
  border-radius: 10px;
  background: linear-gradient(to right,
      #ff0000,
      #ffa500,
      #ffff00,
      #008000,
      #00ffff,
      #0000ff,
      #ee82ee);
  animation: progressbar 3s infinite;
}

@keyframes progressbar {
  0% {
    width: 0%;
  }

  25% {
    width: 25%;
  }

  50% {
    width: 50%;
  }

  75% {
    width: 75%;
  }

  100% {
    width: 100%;
  }
}

/* Flip Card (3D Transform) */

.card-container {
  perspective: 1000px;
  height: 200px;
  width: 350px;
}

.card {
  position: relative;
  height: 100%;
  width: 100%;
  transform-style: preserve-3d;
  animation: flipcard 5s alternate infinite;
}

.card-face {
  height: 100%;
  width: 100%;
  position: absolute;
  font-size: 24px;
  border-radius: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  backface-visibility: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.front {
  background-color: #4caf50;
  color: #ffffff;
}

.back {
  color: #ffffff;
  background-color: #f17c59;
  transform: rotateY(180deg);
}

@keyframes flipcard {

  0%,
  45% {
    transform: rotateY(0deg);
  }

  55%,
  100% {
    transform: rotateY(180deg);
  }
}

/* Typing Text Effect */

.typing-text {
  width: 0;
  white-space: nowrap;
  overflow: hidden;
  font-size: 22px;
  font-family: 'Courier New';
  border-right: 2px solid #525453;
  animation: typing 6s steps(100, end) forwards, blinkCursor 0.6s infinite;
}


@keyframes typing {
  from {
    width: 0;
  }

  to {
    width: 100%;
  }
}

@keyframes blinkCursor {

  0%,
  100% {
    border-color: transparent;
  }

  50% {
    border-color: #525453;
  }
}

/* Loading Spinner */

.spinner {
  width: 70px;
  height: 70px;
  border-top: 5px solid #3498db;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

/* Bouncing Ball */

.ground {
  height: 25vh;
  position: relative;
  overflow: hidden;
}

.ball {
  height: 55px;
  width: 55px;
  background: radial-gradient(circle, #ff4d4d, #ff0000);
  border-radius: 50%;
  position: absolute;
  bottom: 0;
  left: 10px;
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0% {
    transform: translateY(0) scaleX(1.2) scaleY(0.8);
  }

  25% {
    transform: translateY(-150px) scaleX(0.9) scaleY(1.1);
  }

  50% {
    transform: translateY(0) scaleX(1.2) scaleY(0.8);
  }

  75% {
    transform: translateY(-80px) scaleX(0.9) scaleY(1.1);
  }

  100% {
    transform: translateY(0) scaleX(1.2) scaleY(0.8);
  }
}

/* Animated Story */

.sky {
  position: relative;
  min-height: 30vh;
  width: 100%;
  overflow: hidden;
}

.sun {
  position: absolute;
  width: 80px;
  height: 80px;
  left: 50%;
  bottom: -100px;
  transform: translateX(-50%);
  background: radial-gradient(circle, #FFD700, #FFA500);
  border-radius: 50%;
  animation: sunrise 5s ease-out forwards;
  animation-delay: 1s;
}

.cloud {
  position: absolute;
  top: 10px;
  height: 50px;
  width: 100px;
  background-color: #ffffff;
  border-radius: 50px;
  box-shadow: 60px 0 #ffffff, 30px -20px #ffffff;
  opacity: 0;
}

.cloud1 {
  top: 80px;
  animation: move 20s linear infinite;
  animation-delay: 3s;
  animation-fill-mode: forwards;
}

.cloud2 {
  top: 50px;
  animation: move 25s linear infinite;
  animation-delay: 5s;
  animation-fill-mode: forwards;
}

.car {
  position: relative;
}

.car img {
  height: 70px;
  width: 250px;
  top: 200px;
  position: absolute;
  opacity: 0;
  animation-delay: 15s;
  animation: move 15s linear infinite;
}

@keyframes sunrise {
  to {
    bottom: 200px;
  }
}

@keyframes move {
  0% {
    opacity: 1;
    transform: translateX(0);
  }

  100% {
    opacity: 1;
    transform: translateX(80vw);
  }
}