body {
  min-height: 100vh;
  background: #f8f9fa;
  font-family: 'Inter', sans-serif;
  display: flex;
  flex-direction: column;
}

.quiz-container {
  flex: 1;
  max-width: 600px;
  margin: 0 auto;
  padding: 32px 8px 100px 8px;
}

.quiz-question {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(32,80,179,0.07);
  margin-bottom: 24px;
  padding: 20px;
  font-size: 1.1em;
}

.quiz-options {
  margin-top: 12px;
}
.quiz-options label {
  display: block;
  margin-bottom: 8px;
  cursor: pointer;
}

.quiz-submit-btn {
  display: block;
  width: 100%;
  max-width: 300px;
  margin: 32px auto 0 auto;
  padding: 12px;
  background: #2050b3;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1.1em;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.2s;
}
.quiz-submit-btn:hover {
  background: #357ae8;
}

.quiz-input-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: #fff;
  box-shadow: 0 -2px 12px rgba(32,80,179,0.07);
  padding: 16px 0 12px 0;
  display: flex;
  justify-content: center;
  z-index: 100;
}
.quiz-input-bar form {
  display: flex;
  width: 100%;
  max-width: 600px;
  gap: 8px;
}
.quiz-input-bar input[type="text"] {
  flex: 1;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid #2050b3;
  font-size: 1em;
  outline: none;
}
.quiz-input-bar button {
  background: #2050b3;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0 22px;
  font-size: 1em;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.2s;
}
.quiz-input-bar button:hover {
  background: #357ae8;
}

.quiz-title {
  text-align: center;
  font-size: 2.2em;
  font-weight: bold;
  margin-top: 40px;
  margin-bottom: 12px;
  color: #2050b3;
}

.quiz-subtitle {
  text-align: center;
  font-size: 1.25em;
  margin-bottom: 32px;
  color: #333;
}

.quiz-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  height: 60vh;
}