body {
  font-family: Arial, sans-serif;
  background-color: #fff;
  margin: 0;
  padding: 0;
}

.header {
  background-color: #1c4d90;
  color: white;
  padding: 10px 20px;
  font-size: 20px;
}

.container {
  width: 70%;
  margin: 20px auto;
}

.title {
  font-size: 24px;
  margin: 10px 0 0;
  color: #333;
}

.subtitle {
  font-size: 14px;
  color: #d67f00;
  margin-bottom: 20px;
}

.quiz-box {
  display: flex;
  border: 1px solid #ccc;
  border-radius: 8px;
  overflow: hidden;
  background-color: #f8f8f8;
}

.text-section {
  flex: 2;
  padding: 15px;
}

.image-section {
  flex: 1;
  position: relative;
  background-color: #fff;
}

.main-image {
  width: 100%;
  height: auto;
  display: block;
}

.avatar {
  position: absolute;
  bottom: 10px;
  right: 10px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
}

.block {
  background-color: #d9e6f2;
  border: 2px solid #ff8c00;
  border-radius: 6px;
  padding: 10px;
  margin-bottom: 10px;
  position: relative;
}

.block h2 {
  margin: 0;
  font-size: 18px;
}

.block p {
  margin: 5px 0 0;
  font-size: 14px;
}

.sound-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 20px;
  height: 20px;
  background: url('images/speaker-icon.png') no-repeat center;
  background-size: cover;
  border: none;
  cursor: pointer;
}

.input-row {
  display: flex;
  gap: 5px;
  margin: 10px 0;
}

.input-row input {
  flex: 1;
  padding: 5px;
  font-size: 14px;
}

.go-btn {
  padding: 5px 10px;
  font-size: 14px;
  background-color: #eee;
  border: 1px solid #ccc;
  cursor: pointer;
}

.feedback {
  font-size: 13px;
  margin-bottom: 10px;
}

.feedback.error {
  color: red;
}

.explanation {
  margin-top: 15px;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  width: 1300px;
  border: 1px solid #ccc;
  border-radius: 20px;
  overflow: hidden;
}

.explanation input {
  border: none;
  padding: 8px;
  flex: 1;
  outline: none;
}

.dropdown-btn {
  width: 30px;
  background: url('images/dropdown-icon.png') no-repeat center;
  background-size: contain;
  border: none;
  cursor: pointer;
}