/* ═══════════════════════════════════════════════
   STYLES DE MODERNISATION — Cours BIA 2026
   ═══════════════════════════════════════════════ */

/* ─────────────────────────────────────────────────────────────── */
/* STRATÉGIE DE FALLBACK color-mix() (utilisée dans tout le fichier)
   ─────────────────────────────────────────────────────────────── */
/* Fallback / dégradé élégant :
   — première déclaration en rgba() pour tous les navigateurs (y compris plus anciens) ;
   — puis color-mix() comme amélioration progressive pour les navigateurs très récents
     (= Chrome 111+, Safari 16.2+, Firefox 113+). La seconde déclaration écrase la
     première lorsque color-mix() est pris en charge, mais n'est pas critique pour
     le fonctionnement : le hover reste lisible avec le rgba() seul. */
/* ─────────────────────────────────────────────────────────────── */

/* Design volontairement "flat" sur les blocs pédagogiques */
.progress-bar,
.progress-step,
.learning-level,
.concept-box,
.vocab-card,
.definition,
.example-callout,
.formula-box,
.concept-summary,
.environmental-context,
.comparison-table,
.section-nav a,
.intro-visual {
  border-radius: 0;
}

/* Barre de progression */
.progress-bar {
  display: flex;
  gap: 0.5rem;
  margin: 3rem 0 2rem;
  padding: 1.5rem;
  background: linear-gradient(135deg, #f5f5f5 0%, #fff 100%);
}

.progress-step {
  flex: 1;
  height: 6px;
  background: #e0e0e0;
  transition: all 0.3s ease;
  cursor: pointer;
}

.progress-step.active {
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-teal));
  box-shadow: 0 2px 8px rgba(9, 145, 224, 0.3);
}

.progress-step.completed {
  background: var(--color-accent-teal);
}

/* Conteneur de niveau d'apprentissage */
.learning-level {
  border-left: 5px solid;
  padding: var(--sp-section, 1.75rem);
  margin: var(--sp-section-v, 2.5rem) 0;
  background: #f9f9f9;
  transition: all 0.3s ease;
}

.learning-level.level-1 {
  border-color: var(--color-level-1);
  background: linear-gradient(135deg, rgba(9, 145, 224, 0.05) 0%, rgba(9, 145, 224, 0.02) 100%);
}

.learning-level.level-2 {
  border-color: var(--color-level-2);
  background: linear-gradient(135deg, rgba(0, 163, 152, 0.05) 0%, rgba(0, 163, 152, 0.02) 100%);
}

.learning-level.level-3 {
  border-color: var(--color-level-3);
  background: linear-gradient(135deg, rgba(232, 93, 79, 0.05) 0%, rgba(232, 93, 79, 0.02) 100%);
}

.learning-level.level-4 {
  border-color: #4f46e5;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.05) 0%, rgba(79, 70, 229, 0.02) 100%);
}

.learning-level.level-5 {
  border-color: #bd93f9;  /* purple (Dracula) pour Partie 5 Espace */
  background: linear-gradient(135deg, rgba(189, 147, 249, 0.05) 0%, rgba(189, 147, 249, 0.02) 100%);
}

.learning-level-title {
  display: flex;
  align-items: center;
  gap: var(--sp-title-gap, 0.75rem);
  margin: 0 0 1.5rem 0;
  padding-bottom: 1rem;
  border-bottom: 2px solid currentColor;
  font-size: var(--fs-section-title, 1.3rem);
  font-weight: 600;
}

.level-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--badge-size, 32px);
  height: var(--badge-size, 32px);
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  font-weight: bold;
  font-size: var(--badge-font, 0.9rem);
  flex-shrink: 0;
}

/* Boîtes conceptuelles */
.concept-box {
  background: white;
  border: 1px solid #e0e0e0;
  padding: var(--sp-box, 1.25rem);
  margin: 1.5rem 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
  transition: all 0.2s ease;
}

.concept-box:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border-color: var(--color-primary);
}

/* Vocabulaire bilingue */
.vocab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.vocab-card {
  background: #fff;
  border: 1px solid #e0e0e0;
  padding: 1.25rem 1.5rem;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}

.vocab-card h4 {
  margin: 0 0 1rem 0;
  color: var(--color-primary);
  font-size: 1.1rem;
}

.vocab-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.vocab-item {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
}

.vocab-fr {
  font-weight: 600;
}

.vocab-en {
  font-style: italic;
  color: #4b4b4b;
  text-align: right;
}

.concept-box h4 {
  color: var(--color-primary);
  margin: 0 0 1rem 0;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.concept-box-icon {
  font-size: 1.3em;
}

/* Définitions */
.definition {
  background: linear-gradient(135deg, rgba(9, 145, 224, 0.08) 0%, rgba(0, 163, 152, 0.04) 100%);
  border-left: 4px solid var(--color-primary);
  padding: 1.25rem;
  margin: 1.5rem 0;
  font-style: italic;
  line-height: 1.6;
}

/* Appels d'exemple */
.example-callout {
  background: linear-gradient(135deg, rgba(255, 189, 10, 0.08) 0%, rgba(255, 189, 10, 0.04) 100%);
  border-left: 4px solid var(--color-accent-yellow);
  padding: 1.25rem;
  margin: 1.5rem 0;
}

.example-callout::before {
  content: "◈ ";
  font-weight: bold;
  color: #F57C00;
}

.example-callout strong {
  color: #F57C00;
}

/* Formules en relief */
.formula-box {
  background: white;
  border: 2px solid var(--color-primary);
  padding: 1.5rem;
  margin: 1.5rem 0;
  text-align: center;
  font-family: 'Courier New', monospace;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(9, 145, 224, 0.15);
}

/* Résumé conceptuel */
.concept-summary {
  background: linear-gradient(135deg, #f0f7ff 0%, #f0fff8 100%);
  border: 1px solid var(--color-primary);
  padding: 1.5rem;
  margin: 2rem 0;
}

.concept-summary h4 {
  color: var(--color-primary);
  margin-top: 0;
  font-size: 1.1rem;
}

.concept-summary ul {
  margin: 1rem 0;
  padding-left: 1.5rem;
}

.concept-summary li {
  margin: 0.5rem 0;
  line-height: 1.5;
}

/* Message clé de fin de section/partie */
.key-message {
  background: linear-gradient(135deg, rgba(0, 163, 152, 0.06) 0%, rgba(9, 145, 224, 0.04) 100%);
  border-left: 5px solid var(--color-accent, #00a398);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  font-size: 0.95rem;
  line-height: 1.5;
}
.key-message::before {
  content: "▸ ";
  color: var(--color-accent, #00a398);
  font-weight: 700;
  margin-right: 0.3rem;
}
.key-message strong {
  font-weight: 600;
  color: var(--color-primary, #0991e0);
}


/* Chronologie */
.timeline-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 0.75rem;
  align-items: start;
}

.timeline-year {
  font-weight: 700;
  color: var(--color-primary);
}

.timeline-detail {
  margin: 0;
  color: #333;
}

/* Bloc de contexte environnemental */
.environmental-context {
  background: linear-gradient(135deg, #e8f5e9 0%, #f1f8e9 100%);
  border-left: 4px solid #4caf50;
  padding: 1.5rem;
  margin: 2rem 0;
}

.environmental-context h4 {
  color: #2e7d32;
  margin-top: 0;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.environmental-context::before {
  content: "◆ ";
}

/* Table de comparaison */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: white;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.comparison-table th {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-teal) 100%);
  color: white;
  padding: 1rem;
  text-align: left;
  font-weight: 600;
}

.comparison-table td {
  padding: 1rem;
  border-bottom: 1px solid #e0e0e0;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table tr:nth-child(even) {
  background: #f9f9f9;
}

/* Navigation inter-sections */
.section-nav {
  display: flex;
  gap: 1rem;
  margin: 2rem 0;
  flex-wrap: wrap;
}

.section-nav a {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: var(--color-primary);
  color: white;
  text-decoration: none;
  transition: all 0.2s ease;
  font-weight: 500;
}

.section-nav a:hover {
  background: var(--color-accent-teal);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(9, 145, 224, 0.3);
}

/* Introduction visuelle */
.intro-visual {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-teal) 100%);
  color: white;
  padding: 3rem;
  margin: 2rem 0;
  text-align: center;
}

.intro-visual h2 {
  color: white;
  margin-top: 0;
  font-size: 2rem;
}

.intro-visual p {
  font-size: 1.1rem;
  margin: 1rem 0;
  line-height: 1.6;
}

.breadcrumb {
  color: #2b4c7e;
}

.breadcrumb a {
  color: #2b4c7e;
}


/* ── Programme BIA — composant fusionné ── */
.cours-programme {
  margin: 2rem 0;
}
.cours-programme > h2 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.5rem;
  color: var(--color-primary, #0991E0);
  font-size: 1.25rem;
}
.cours-programme-intro {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text, #1a1a1a);
  margin: 0 0 1rem;
}
.cours-nav-desc {
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--color-text-muted, #6b7280);
  margin-top: 0.35rem;
  text-align: center;
  max-width: 100%;
}
.cours-programme-conseil {
  font-size: 0.8rem;
  font-style: italic;
  color: var(--color-text-muted, #6b7280);
  margin: 0.75rem 0 0;
  padding: 0.5rem 0.75rem;
  border-left: 3px solid var(--color-border, #e5e7eb);
}
.cours-programme-conseil strong {
  font-style: normal;
}

/* ── Barre KPI de navigation cours ── */
.cours-nav-bar {
  display: flex;
  gap: 0;
  margin: 2rem 0 0;
  border: 1px solid var(--color-border, #e5e7eb);
  background: var(--color-secondary, #fff);
}
.cours-nav-item {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--color-border, #e5e7eb);
}
.cours-nav-item:last-child { border-right: none; }
.cours-nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.75rem 0.5rem;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: background 0.15s ease;
}
.cours-nav-link:hover {
  /* Stratégie de fallback color-mix() :
     - première déclaration background en rgba() utilisable par tous les navigateurs ;
     - deuxième déclaration background avec color-mix() qui écrase la première
       uniquement dans les navigateurs qui prennent color-mix() en charge.
     Cette logique est la même que celle décrite dans le commentaire général en haut du fichier. */
  background: rgba(0, 163, 152, 0.07);
  background: color-mix(in srgb, var(--color-accent, #00A398) 7%, transparent);
}
.cours-nav-link:hover .cours-nav-value {
  color: var(--color-accent, #00A398);
}
.cours-nav-value {
  font-family: var(--font-heading, 'Outfit', sans-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary, #0991E0);
  line-height: 1.2;
}
.cours-nav-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted, #6b7280);
  margin-top: 0.15rem;
  text-align: center;
  line-height: 1.3;
}
/* Item actif (sa section est dépliée) */
.cours-nav-item.active .cours-nav-link {
  /* Même stratégie de fallback color-mix() que pour .cours-nav-link:hover :
     voir le commentaire détaillé plus haut dans ce fichier.
     L'état actif est légèrement plus marqué (10 %) que le hover (7 %)
     pour mieux distinguer les deux états. */
  background: rgba(0, 163, 152, 0.10);
  background: color-mix(in srgb, var(--color-accent, #00A398) 10%, transparent);
}
.cours-nav-item.active .cours-nav-value {
  color: var(--color-accent, #00A398);
}
@media (max-width: 600px) {
  .cours-nav-bar { flex-wrap: wrap; }
  .cours-nav-item { flex: 1 1 50%; }
  .cours-nav-item:nth-child(2) { border-right: none; }
  .cours-nav-item:nth-child(1),
  .cours-nav-item:nth-child(2) { border-bottom: 1px solid var(--color-border, #e5e7eb); }
}

/* ── Sections pliables ── */
.learning-level .learning-level-title {
  cursor: pointer;
  user-select: none;
  position: relative;
}
.learning-level .learning-level-title::after {
  content: '▼';
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.7rem;
  color: var(--color-text-muted, #6b7280);
  transition: transform 0.2s ease;
}
.learning-level.collapsed .learning-level-title::after {
  transform: translateY(-50%) rotate(-90deg);
}
.learning-level-content {
  /* Conteneur du contenu repliable sous le titre de section.
     Il englobe texte, listes, figures et médias de la partie.
     C'est cette zone qui est affichée/masquée lorsque .learning-level porte
     la classe .collapsed (voir la règle display: none ci-dessous). */
  position: relative;
  margin-top: 0.6rem;
}
.learning-level.collapsed .learning-level-content {
  display: none;
}
/* ── Séparateur cours / résumé ── */
.course-resume-divider {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin: 3rem auto 2rem;
  max-width: 80%;
}
.course-resume-divider::before,
.course-resume-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border, #C5CCD3);
}
.course-resume-divider span {
  font-size: 0.85rem;
  letter-spacing: 0.6em;
  color: var(--color-primary, #1B3A6B);
  font-weight: 700;
}

/* ══════════════════════════════════════════════════════════════
   Dark mode
   ══════════════════════════════════════════════════════════════ */

/* Progress bar */
html[data-theme="dark"] .progress-bar {
  background: var(--dm-surface);
}
html[data-theme="dark"] .progress-step {
  background: var(--dm-border);
}

/* Learning level sections */
html[data-theme="dark"] .learning-level {
  background: var(--dm-surface) !important;
  color: var(--dm-text);
}
html[data-theme="dark"] .learning-level.level-1 {
  background: rgba(9, 145, 224, 0.1) !important;
}
html[data-theme="dark"] .learning-level.level-2 {
  background: rgba(0, 163, 152, 0.1) !important;
}
html[data-theme="dark"] .learning-level.level-3 {
  background: rgba(232, 93, 79, 0.1) !important;
}
html[data-theme="dark"] .learning-level.level-4 {
  background: rgba(79, 70, 229, 0.12) !important;
}
html[data-theme="dark"] .learning-level.level-5 {
  background: rgba(189, 147, 249, 0.12) !important;
}
html[data-theme="dark"] .learning-level-title {
  color: var(--dm-text-heading);
  border-bottom-color: var(--dm-border);
}
html[data-theme="dark"] .level-badge {
  color: #fff;
}

/* Concept boxes */
html[data-theme="dark"] .concept-box {
  background: var(--dm-surface) !important;
  border-color: var(--dm-border);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  color: var(--dm-text);
}
html[data-theme="dark"] .concept-box:hover {
  border-color: var(--dm-link);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}
html[data-theme="dark"] .concept-box h4 {
  color: var(--dm-link);
}

/* Vocab cards */
html[data-theme="dark"] .vocab-card {
  background: var(--dm-surface) !important;
  border-color: var(--dm-border);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  color: var(--dm-text);
}
html[data-theme="dark"] .vocab-card h4 {
  color: var(--dm-link);
}
html[data-theme="dark"] .vocab-en {
  color: var(--dm-text-muted);
}

/* Definition */
html[data-theme="dark"] .definition {
  background: rgba(9, 145, 224, 0.1) !important;
  border-left-color: var(--dm-link);
  color: var(--dm-text);
}

/* Example callout */
html[data-theme="dark"] .example-callout {
  background: rgba(255, 189, 10, 0.1) !important;
  color: var(--dm-text);
}
html[data-theme="dark"] .example-callout strong {
  color: #fbbf24;
}
html[data-theme="dark"] .example-callout::before {
  color: #fbbf24;
}

/* Formula box */
html[data-theme="dark"] .formula-box {
  background: var(--dm-bg) !important;
  border-color: var(--dm-link);
  color: var(--dm-link);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Concept summary */
html[data-theme="dark"] .concept-summary {
  background: rgba(123, 163, 216, 0.08) !important;
  border-color: var(--dm-link);
  color: var(--dm-text);
}
html[data-theme="dark"] .concept-summary h4 {
  color: var(--dm-link);
}

/* Key message */
html[data-theme="dark"] .key-message {
  background: linear-gradient(135deg, rgba(0, 163, 152, 0.1) 0%, rgba(9, 145, 224, 0.06) 100%);
  border-left-color: var(--dm-accent-green);
}
html[data-theme="dark"] .key-message::before {
  color: var(--dm-accent-green);
}
html[data-theme="dark"] .key-message strong {
  color: var(--dm-link);
}

/* Environmental context */
html[data-theme="dark"] .environmental-context {
  background: rgba(76, 175, 80, 0.1) !important;
  border-left-color: #66bb6a;
  color: var(--dm-text);
}
html[data-theme="dark"] .environmental-context h4 {
  color: #81c784;
}

/* Comparison table */
html[data-theme="dark"] .comparison-table {
  background: var(--dm-surface) !important;
  color: var(--dm-text);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}
html[data-theme="dark"] .comparison-table td {
  border-bottom-color: var(--dm-border);
}
html[data-theme="dark"] .comparison-table tr:nth-child(even) {
  background: rgba(148, 163, 184, 0.05) !important;
}

/* Cours navigation bar */
html[data-theme="dark"] .cours-nav-bar {
  background: var(--dm-surface) !important;
  border-color: var(--dm-border);
}
html[data-theme="dark"] .cours-nav-item {
  border-right-color: var(--dm-border);
}
html[data-theme="dark"] .cours-nav-link:hover {
  background: rgba(0, 163, 152, 0.07);
  background: color-mix(in srgb, var(--color-accent, #00A398) 7%, transparent);
}
html[data-theme="dark"] .cours-nav-value {
  color: var(--dm-text-heading);
}
html[data-theme="dark"] .cours-nav-label {
  color: var(--dm-text-muted);
}
html[data-theme="dark"] .cours-nav-desc {
  color: var(--dm-text-muted);
}

/* Cours programme text */
html[data-theme="dark"] .cours-programme > h2 {
  color: var(--dm-link);
}
html[data-theme="dark"] .cours-programme-intro {
  color: var(--dm-text);
}
html[data-theme="dark"] .cours-programme-conseil {
  color: var(--dm-text-muted);
  border-left-color: var(--dm-border);
}

/* Intro visual */
html[data-theme="dark"] .intro-visual {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Timeline (histoire) */
html[data-theme="dark"] .timeline-list {
  border-left-color: var(--dm-border);
}
html[data-theme="dark"] .timeline-item {
  background: var(--dm-surface);
  border-color: var(--dm-border);
  color: var(--dm-text);
}
html[data-theme="dark"] .timeline-year {
  color: var(--dm-link);
}
html[data-theme="dark"] .timeline-detail {
  color: var(--dm-text-muted);
}

/* Course resume divider */
html[data-theme="dark"] .course-resume-divider::before,
html[data-theme="dark"] .course-resume-divider::after {
  background: var(--dm-border);
}
html[data-theme="dark"] .course-resume-divider span {
  color: var(--dm-text-muted);
}

/* ── QR quiz block (reused from atelier.css) ── */
.qr-quiz-block {
  --qr-size: 130px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.2rem 1.5rem;
  margin: 1.5rem 0;
  background: linear-gradient(135deg, #e8f4fd, #e6f5f3);
  border: 2px solid var(--color-primary);
}
.qr-quiz-block img {
  width: var(--qr-size);
  height: var(--qr-size);
  flex-shrink: 0;
}

/* ── Cartes vidéo externes ── */
.video-links-grid {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.75rem;
}
.video-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1rem;
  background: var(--color-secondary, #fff);
  border: 1px solid var(--color-border, #e5e7eb);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.video-link:hover {
  border-color: var(--color-primary, #0991e0);
  box-shadow: 0 2px 8px rgba(9, 145, 224, 0.15);
}
.video-link-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  color: var(--color-primary, #0991e0);
}
.video-link-title {
  font-weight: 700;
  display: block;
  margin-bottom: 0.1rem;
}
.video-link-subtitle {
  font-size: 0.82rem;
  color: #666;
  display: block;
}

html[data-theme="dark"] .qr-quiz-block img {
  filter: invert(1);
}
html[data-theme="dark"] .quiz-link-btn {
  background: var(--dm-surface-hi);  /* fond clair pour contraste, aligné avec le thème sombre */
  color: var(--dm-link);  /* bleu/accent du thème sombre */
  border: 1px solid var(--dm-link);
}
html[data-theme="dark"] .quiz-link-btn:hover {
  background: var(--dm-link);  /* inversion au hover */
  color: var(--dm-bg);
}

/* ── Cartes vidéo externes (dark mode) ── */
html[data-theme="dark"] .video-link {
  background: var(--dm-surface);
  border-color: var(--dm-border);
  color: var(--dm-text);
}
html[data-theme="dark"] .video-link:hover {
  background: var(--dm-surface-hi);
  border-color: var(--dm-link);
  box-shadow: 0 2px 8px var(--dm-shadow);
}
html[data-theme="dark"] .video-link-icon {
  color: var(--dm-link);
}
html[data-theme="dark"] .video-link-subtitle {
  color: var(--dm-text-muted);
}

.qr-quiz-block .qr-text h3 {
  color: var(--color-primary);
  margin: 0 0 0.3rem;
  font-size: 1.05rem;
}
.qr-quiz-block .qr-text p {
  margin: 0.2rem 0;
  font-size: 0.88rem;
  color: #333;
}
.qr-quiz-block .qr-text .qr-url {
  font-size: 0.75rem;
  color: #7a8699;
  word-break: break-all;
}
.quiz-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  padding: 0.5rem 1.2rem;
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.88rem;
  font-family: inherit;
  transition: opacity 0.15s;
}
.quiz-link-btn:hover {
  opacity: 0.85;
}
@media (max-width: 500px) {
  .qr-quiz-block {
    flex-direction: column;
    text-align: center;
  }
}