* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Helvetica Neue', Arial, 'PingFang TC', 'Microsoft JhengHei', sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.card {
  background: #fff;
  border-radius: 20px;
  padding: 40px 36px;
  max-width: 560px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  text-align: center;
}

.hidden {
  display: none;
}

.emoji-big {
  font-size: 56px;
  margin-bottom: 16px;
}

h1 {
  font-size: 26px;
  color: #2d2d2d;
  margin-bottom: 10px;
}

.subtitle {
  color: #888;
  font-size: 15px;
  margin-bottom: 32px;
}

button {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 14px 40px;
  font-size: 16px;
  cursor: pointer;
  transition: opacity 0.2s;
  margin-top: 24px;
}

button:hover {
  opacity: 0.88;
}

/* Progress */
.progress-bar-wrap {
  background: #eee;
  border-radius: 10px;
  height: 8px;
  margin-bottom: 10px;
  overflow: hidden;
}

#progress-bar {
  height: 100%;
  background: linear-gradient(90deg, #667eea, #764ba2);
  border-radius: 10px;
  transition: width 0.3s ease;
  width: 0%;
}

#progress-label {
  font-size: 13px;
  color: #aaa;
  margin-bottom: 24px;
}

/* Question */
h2 {
  font-size: 20px;
  color: #2d2d2d;
  margin-bottom: 28px;
  line-height: 1.5;
}

/* Options */
#options {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
}

.option-btn {
  background: #f7f7f7;
  color: #333;
  border: 2px solid #eee;
  border-radius: 12px;
  padding: 14px 18px;
  font-size: 15px;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 0;
  text-align: left;
}

.option-btn:hover {
  background: #ede9ff;
  border-color: #9b8ce8;
  opacity: 1;
}

/* Result */
#result-score {
  font-size: 15px;
  color: #aaa;
  margin: 8px 0 16px;
}

#result-desc {
  font-size: 16px;
  color: #555;
  line-height: 1.7;
}