body {
  font-family: system-ui, sans-serif;
  background: linear-gradient(135deg,#667eea 0%,#764ba2 100%);
  min-height:100vh;
  padding:20px;
  color:#2c3e50;
}
.container {
  max-width:1200px;
  margin:0 auto;
  background:#fff;
  border-radius:20px;
  overflow:hidden;
  box-shadow:0 20px 40px rgba(0,0,0,.1);
}
.header {
  background:linear-gradient(135deg,#2c3e50 0%,#3498db 100%);
  color:#fff;
  padding:40px 24px;
  text-align:center;
}
.header h1 { font-size:2rem; font-weight:800; }
.main-content { padding:34px 24px 40px; }
.section-title { font-size:1.4rem; font-weight:700; margin:20px 0 14px; }
.categories-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:18px;
}
.category-card {
  border:2px solid #e1e8ed;
  border-radius:16px;
  padding:22px;
  cursor:pointer;
  background:#fff;
  transition:.2s;
}
.category-card:hover {
  transform:translateY(-4px);
  box-shadow:0 15px 30px rgba(0,0,0,.12);
  border-color:#3498db;
}
.badge {
  background:#3498db;color:#fff;padding:6px 10px;
  border-radius:999px;font-size:.8rem;font-weight:600;
}
.hidden{display:none!important;}
.question-card{
  background:#fff;border-radius:16px;padding:26px;
  box-shadow:0 10px 24px rgba(0,0,0,.08);margin-bottom:18px;
}
.question-number{
  background:#3498db;color:#fff;padding:8px 14px;
  border-radius:999px;font-weight:700;
}
.question-text{font-size:1.15rem;margin:14px 0;font-weight:600;color:#1e293b;}
.options{display:flex;flex-direction:column;gap:10px;}
.option{
  border:2px solid #e9ecef;border-radius:12px;
  padding:12px;cursor:pointer;background:#f8fafc;transition:.2s;
}
.option:hover{background:#e3f2fd;border-color:#2196f3;}
.option.selected{background:#e0f2fe;border-color:#0284c7;}
.option.correct{background:#e8f5e9;border-color:#22c55e;}
.option.incorrect{background:#ffebee;border-color:#ef4444;}
#qrcAnswer{
  width:100%;padding:8px;border-radius:8px;border:1px solid #ccc;
}
.btn{border:0;border-radius:999px;padding:12px 20px;font-weight:700;cursor:pointer;margin:6px;}
.btn-primary{background:#3498db;color:#fff;}
.btn-success{background:#22c55e;color:#fff;}
.btn-secondary{background:#94a3b8;color:#fff;}
.results{text-align:center;padding:10px;}
.score-circle{
  width:120px;height:120px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 16px;color:#fff;font-size:2rem;font-weight:900;
}
.score-excellent{background:linear-gradient(135deg,#22c55e,#16a34a);}
.score-good{background:linear-gradient(135deg,#f59e0b,#d97706);}
.score-poor{background:linear-gradient(135deg,#ef4444,#b91c1c);}
.review-item{
  border:1px solid #e5e7eb;border-radius:12px;padding:14px;margin-bottom:10px;text-align:left;
}
/* Floating home button */
#homeFloating{
  position:fixed;top:20px;left:20px;width:48px;height:48px;
  border-radius:50%;border:none;background:#fff;box-shadow:0 4px 10px rgba(0,0,0,0.2);
  cursor:pointer;font-size:1.5rem;z-index:9999;display:flex;align-items:center;justify-content:center;
}
#homeFloating:hover{background:#f0f0f0;}


.review-item p.correct {
  background: #d1fae5; /* vert clair */
  padding: 6px;
  border-radius: 6px;
}
.review-item p.incorrect {
  background: #fee2e2; /* rouge clair */
  padding: 6px;
  border-radius: 6px;
}
.review-item p.unanswered {
  background: #fef9c3; /* jaune clair */
  padding: 6px;
  border-radius: 6px;
}

#qImage img {
  display:block;
  max-width:100%;
  height:auto;
  margin:12px auto;
  border-radius:8px;
  box-shadow:0 4px 12px rgba(0,0,0,0.1);
}

.review-item .review-image {
  margin: 10px 0;
  text-align: center;
}
.review-item .review-image img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}