/* General Styles */
.sekai-section {
  margin: 0;
  font-family: 'Arial', sans-serif;
  background-color: #e4ffe2;
  color: #333;
}

.nagare-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

/* Overview Section */
.sekai-section {
  padding: 60px 0;
  background-color: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.yume-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.yume-content h2 {
  font-size: 2.5rem;
  color: rgb(30, 64, 175);
  margin-bottom: 10px;
  animation: yureru 1s ease-in-out;
}

.yume-content p {
  font-size: 1.1rem;
  line-height: 1.6;
  color: #555;
  animation: yureru 1.5s ease-in-out;
}

/* Key Figures */
.tokei-figures {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 30px;
  animation: yureru 2s ease-in-out;
}

.kazu {
  text-align: center;
  background-color: #e4ffe2;
  padding: 20px;
  border-radius: 10px;
  flex: 1;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.kazu:hover {
  transform: translateY(-10px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.emoji {
  font-size: 2rem;
  display: block;
  margin-bottom: 10px;
}

.atai {
  font-size: 1.8rem;
  font-weight: bold;
  color: #419444;
}

.moji {
  font-size: 1rem;
  color: #555;
}

/* Image Section */
.e-image {
  margin-top: 40px;
  text-align: center;
}

.e-image img {
  max-width: 100%;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  animation: mieru 2s ease-in-out;
}

/* Animations */
@keyframes yureru {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes mieru {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Responsive Design */
@media (min-width: 768px) {
  .nagare-container {
    display: flex;
    align-items: center;
    gap: 40px;
  }

  .yume-content {
    flex: 1;
  }

  .e-image {
    flex: 1;
    margin-top: 0;
  }
}

@media (max-width: 767px) {
  .tokei-figures {
    flex-direction: column;
  }

  .kazu {
    margin-bottom: 20px;
  }
}