body {
  font-family: Arial, sans-serif;
  background: #d0e7ff;
  margin: 0;
  padding: 0;
}

.quiz-container {
  max-width: 700px;
  margin: 50px auto;
  background: white;
  padding: 30px;
  border-radius: 10px;
}

h1 {
  text-align: center;
}

#answers button {
  display: block;
  width: 100%;
  margin: 10px 0;
  padding: 12px;
  font-size: 16px;
  cursor: pointer;
  border: 1px solid #ccc;
  border-radius: 6px;
  background: #fff;
}

#answers button:hover {
  background: #eef2f7;
}

.hidden {
  display: none;
}

.progress-wrapper {
  margin-bottom: 20px;
}

.progress-info {
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 500;
}

.progress-container {
  width: 100%;
  height: 14px;
  background: #ddd;
  border-radius: 7px;
  overflow: hidden;
}

#progress-bar {
  height: 100%;
  width: 0%;
  background: #4caf50;
  transition: width 0.3s ease;
}
body {
  font-family: Arial, sans-serif;
  background: #d0e7ff;
  margin: 0;
  padding: 0;
}

.quiz-container {
  max-width: 700px;
  margin: 50px auto;
  background: white;
  padding: 30px;
  border-radius: 10px;
}

h1 {
  text-align: center;
}

#answers button {
  display: block;
  width: 100%;
  margin: 10px 0;
  padding: 12px;
  font-size: 16px;
  cursor: pointer;
  border: 1px solid #ccc;
  border-radius: 6px;
  background: #fff;
}

#answers button:hover {
  background: #eef2f7;
}

.hidden {
  display: none;
}

.progress-wrapper {
  margin-bottom: 20px;
}

.progress-info {
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 500;
}

.progress-container {
  width: 100%;
  height: 14px;
  background: #ddd;
  border-radius: 7px;
  overflow: hidden;
}

#progress-bar {
  height: 100%;
  width: 0%;
  background: red; /* výchozí barva */
  transition: width 0.3s ease, background 0.3s ease;
}