body.no-scroll {
  overflow: hidden !important;
}

/* =========================================
   🥚 ORBLOX EASTER EGG - VERSION TEXT
   ========================================= */
.version-text-container {
  margin-top: 0.2rem;
  text-align: center;
  position: relative;
  border-radius: 6px;
  cursor: default;
  transition: all 0.3s ease;
}

.version-text {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.3px;
  transition: all 0.3s ease;
  display: inline-block;
  opacity: 0.7;
}

.version-text.pioneer-unlocked {
  color: #d97706;
  font-weight: 700;
  opacity: 1;
}

.version-progress-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, #fbbf24, #d97706);
  border-radius: 2px;
  transition: width 0.05s linear;
}

/* État pendant l'appui */
.version-text-container.pressing {
  background: rgba(251, 191, 36, 0.15);
  border-radius: 8px;
}

.version-text-container.pressing .version-text {
  color: #d97706;
  font-weight: 600;
}

/* Effet de couleur après 5 secondes */
.version-text-container.color-effect {
  background: linear-gradient(
    135deg,
    rgba(251, 191, 36, 0.2),
    rgba(217, 119, 6, 0.15)
  );
  box-shadow: 0 0 20px rgba(251, 191, 36, 0.4), 0 0 40px rgba(251, 191, 36, 0.2);
  animation: colorPulse 0.4s ease-in-out infinite alternate;
}

.version-text-container.color-effect .version-text {
  color: #b45309;
  font-weight: 800;
  text-shadow: 0 0 15px rgba(251, 191, 36, 0.8);
  animation: textGlow 0.3s ease-in-out infinite alternate;
}

.version-text-container.color-effect .version-progress-bar {
  box-shadow: 0 0 12px rgba(251, 191, 36, 1);
  height: 4px;
}

@keyframes colorPulse {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.05);
  }
}

@keyframes textGlow {
  from {
    text-shadow: 0 0 10px rgba(251, 191, 36, 0.6);
  }
  to {
    text-shadow: 0 0 20px rgba(251, 191, 36, 1);
  }
}

/* =========================================
   📋 CHANGELOG MODAL (utilise settings-modal)
   ========================================= */
.changelog-version-badge {
  background: var(--primary-accent);
  color: white;
  padding: 0.3rem 0.85rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-left: auto;
  margin-right: 3rem;
  box-shadow: 0 4px 15px rgba(var(--primary-accent-rgb), 0.3);
}

.changelog-list {
  margin: 0.5rem 0 0 0;
  padding-left: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.changelog-list li {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.5;
  padding-left: 1.25rem;
  position: relative;
}

.changelog-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 6px;
  height: 6px;
  background: var(--primary-accent);
  border-radius: 50%;
}

#changelogModal .settings-card h3 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-headings);
}

#changelogModal .settings-card h3 i {
  width: 18px;
  height: 18px;
  color: var(--primary-accent);
}

/* =========================================
   🥚 ORBLOX EASTER EGG MODAL
   ========================================= */
.orblox-found-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.orblox-found-modal.active {
  opacity: 1;
  visibility: visible;
}

.orblox-found-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
}

.orblox-found-content {
  position: relative;
  background: var(--bg-content);
  border: 2px solid #fbbf24;
  border-radius: 24px;
  padding: 2.5rem;
  max-width: 450px;
  width: 90%;
  text-align: center;
  box-shadow: 0 0 80px rgba(251, 191, 36, 0.3),
    0 0 150px rgba(251, 191, 36, 0.1), 0 30px 60px rgba(0, 0, 0, 0.3);
  animation: modalAppear 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalAppear {
  from {
    opacity: 0;
    transform: scale(0.7) translateY(30px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.orblox-found-celebration {
  font-size: 4rem;
  margin-bottom: 1rem;
  animation: celebrationBounce 0.8s ease infinite;
}

@keyframes celebrationBounce {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-15px) rotate(-5deg);
  }
  75% {
    transform: translateY(-15px) rotate(5deg);
  }
}

.orblox-found-title {
  font-size: 2rem;
  font-weight: 900;
  margin: 0 0 0.5rem 0;
  background: linear-gradient(90deg, #fbbf24, #f59e0b, #d97706);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.orblox-found-desc {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.orblox-reward-card {
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.3);
  border-radius: 16px;
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  text-align: left;
}

.orblox-reward-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
}

.orblox-reward-info {
  flex: 1;
}

.orblox-reward-info h3 {
  margin: 0 0 0.25rem 0;
  color: #fbbf24;
  font-size: 1.1rem;
  font-weight: 700;
}

.orblox-reward-info p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.orblox-reward-info strong {
  color: #fbbf24;
}

.orblox-slots-badge {
  background: rgba(251, 191, 36, 0.2);
  color: #fbbf24;
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  font-weight: 700;
  font-size: 0.9rem;
  border: 1px solid rgba(251, 191, 36, 0.3);
}

.orblox-slots-badge.full {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.3);
}

.orblox-found-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.btn-claim-orblox-modal {
  background: linear-gradient(135deg, #fbbf24 0%, #d97706 100%);
  color: #1a1a2e;
  border: none;
  padding: 1rem 2rem;
  border-radius: 14px;
  font-weight: 800;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  transition: all 0.3s ease;
  box-shadow: 0 8px 30px rgba(251, 191, 36, 0.5);
}

.btn-claim-orblox-modal:hover:not(:disabled) {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(251, 191, 36, 0.6);
}

.btn-claim-orblox-modal:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-claim-orblox-modal.success {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  box-shadow: 0 8px 30px rgba(16, 185, 129, 0.5);
}

.btn-close-orblox-modal {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.75rem;
  border-radius: 10px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-close-orblox-modal:hover {
  background: var(--bg-body);
  color: var(--text-primary);
  border-color: var(--primary-accent);
}

.main-content h2,
.main-content h3,
.main-content h4 {
  font-family: var(--font-headings);
  font-weight: 600;
  color: var(--text-headings);
}

.main-content h2 {
  font-size: 1.8rem;
  margin: 0 0 1rem 0;
}

.main-content h2 .concept-number {
  color: var(--primary-accent);
}

.sub-concept-title,
.main-content h4 {
  font-size: 1.4rem;
  margin: 3.5rem 0 1.5rem 0;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-headings);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.main-content p,
.main-content ol,
.main-content ul {
  line-height: 1.85;
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  max-width: 75ch;
}

.main-content ol,
.main-content ul {
  padding-left: 2rem;
}

.main-content li {
  margin-bottom: 1rem;
  padding-left: 0.5rem;
}

.main-content li::marker {
  color: var(--primary-accent);
  font-weight: 600;
}

/* Default styling for pre elements (before JS enhancement) */
.main-content pre {
  background: #2d3748;
  color: #e2e8f0;
  padding: 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid #4a5568;
  font-family: "Fira Code", "Consolas", "Monaco", monospace;
  font-size: 0.95rem;
  line-height: 1.7;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

.main-content pre code {
  background: transparent;
  padding: 0;
  border: none;
  font-family: inherit;
  color: inherit;
}

.concept-section,
.content-block {
  margin-top: 3rem;
  background-color: var(--bg-content);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-default);
}
.concept-section:hover,
.content-block:hover {
  box-shadow: var(--shadow-md);
}
.concept-section {
  padding: clamp(1.5rem, 5vw, 2.5rem);
}

.content-block .block-header {
  padding: 1.5rem;
  background: var(--bg-alt);
}
.content-block .block-header h2 {
  font-size: 1.5rem;
  color: var(--text-headings);
}
.content-block .block-header h3 {
  color: var(--text-headings);
}

.content-block .block-content {
  padding: 1.5rem;
}

.grid-two-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
  padding: 1rem 0;
}

@media (min-width: 768px) {
  .content-block .block-content {
    padding: 2.5rem;
  }
}

.btn-primary,
.btn-secondary,
.validation-btn,
.toggle-solution-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-family: var(--font-headings);
  font-weight: 600;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  border: 2px solid transparent;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
}
.btn-primary:hover,
.btn-secondary:hover,
.validation-btn:hover,
.toggle-solution-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.btn-primary {
  color: var(--text-on-accent);
  background: var(--gradient-primary);
  box-shadow: var(--shadow-accent);
  margin: 1rem 0;
}
.btn-secondary,
.toggle-solution-btn {
  color: var(--primary-accent);
  background-color: var(--primary-light);
  border-color: var(--primary-light);
}
.btn-secondary:hover,
.toggle-solution-btn:hover {
  background-color: var(--primary-accent);
  color: var(--text-on-accent);
  border-color: var(--primary-accent);
}
.toggle-solution-btn {
  margin-top: 1.5rem;
}

.info-box,
.tip-box {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin: 2.5rem 0;
  padding: 1.75rem;
  border-radius: 16px;
  border: none;
  border-left: 4px solid;
  background: var(--bg-alt);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.info-box {
  border-left-color: var(--info-color);
  background: linear-gradient(to right, rgba(37, 99, 235, 0.05), transparent);
}

.tip-box {
  border-left-color: var(--warning-color);
  background: linear-gradient(to right, rgba(251, 191, 36, 0.05), transparent);
}

.warning-box {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin: 2.5rem 0;
  padding: 1.75rem;
  border-radius: 16px;
  border: none;
  border-left: 4px solid var(--danger-color);
  background: linear-gradient(to right, rgba(239, 68, 68, 0.05), transparent);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.info-box-icon {
  margin-top: 2px;
  padding: 8px;
  background: var(--bg-content);
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
  color: inherit;
}

.info-box .info-box-icon {
  color: var(--info-color);
}
.tip-box .info-box-icon {
  color: var(--warning-color);
}
.warning-box .info-box-icon {
  color: var(--danger-color);
}

.info-box-content h5 {
  font-family: var(--font-headings);
  font-size: 1.1rem;
  margin: 0 0 0.5rem 0;
  color: var(--text-headings);
  font-weight: 700;
}

.info-box-content p {
  margin: 0;
  font-size: 1rem;
}
.info-box-content p {
  font-size: 1rem;
  margin: 0;
}
.info-box {
  background-color: var(--info-bg);
  border-color: var(--info-border);
}
.info-box .lucide {
  stroke: var(--info-color);
}
.tip-box {
  background-color: var(--warning-bg);
  border-color: var(--warning-border);
}
.tip-box .lucide {
  stroke: var(--warning-color);
}

.code-card {
  background-color: #1e1e2e;
  border-radius: var(--border-radius-lg);
  margin: 2rem 0;
  overflow: hidden;
  border: 1px solid #313244;
}
.code-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background-color: #181825;
  border-bottom: 1px solid #313244;
}
.code-card-header .code-title {
  font-size: 0.9rem;
  color: #abb2bf;
  font-family: var(--font-code);
}
.code-card-toolbar {
  display: flex;
  gap: 0.5rem;
}
.toolbar-button {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  padding: 0;
  color: #abb2bf;
  background-color: transparent;
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
}
.toolbar-button .lucide {
  width: 18px;
  height: 18px;
}
.toolbar-button span {
  display: none;
}
.toolbar-button:hover {
  background-color: #3e4451;
  color: #fff;
  transform: none;
  box-shadow: none;
}
.toolbar-button.btn-copy:hover {
  color: var(--primary-accent);
  background-color: var(--primary-light);
}
.code-card-content pre {
  margin: 0 !important;
  padding: 1.5rem !important;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
}
.code-card-content code[class*="language-"] {
  padding: 0 !important;
}

.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2000;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(5px);
  padding: 2rem;
  justify-content: center;
  align-items: center;
}
.modal-content {
  position: relative;
  background-color: #ffffff;
  color: #1e293b;
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  border: 1px solid #e2e8f0;
  box-shadow: var(--shadow-xl);
  max-width: 600px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  animation: modal-fade-in 0.3s ease-out;
}

/* Settings Modal Specifics for Fixed Header */
.modal-close {
  position: absolute;
  top: 10px;
  right: 15px;
  font-size: 2rem;
  font-weight: bold;
  color: var(--text-color-secondary);
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s ease;
}
.modal-close:hover {
  color: var(--danger-color);
}
.modal-content h2 {
  font-family: var(--font-headings);
  font-size: 1.6rem;
  margin-top: 0;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #111827;
}

.modal-content.large {
  max-width: 800px;
}

@media (max-width: 640px) {
  .modal-content {
    padding: 1.5rem;
  }
  .modal-content h2 {
    font-size: 1.4rem;
  }
}

.course-hero-card {
  background-color: var(--bg-content);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  margin-bottom: 3rem;
  box-shadow: var(--shadow-md);
  text-align: center;
  border-top: 4px solid var(--primary-accent);
}

.course-hero-card h1 {
  color: var(--text-headings) !important;
  margin-bottom: 0.75rem;
}

.course-hero-card p {
  color: var(--text-secondary) !important;
}

.course-hero-card i,
.course-hero-card .lucide {
  color: var(--primary-accent);
}

@media (min-width: 768px) {
  .course-hero-card {
    padding: 2.5rem 3rem;
  }
}
.hero-title-group .header-icon-wrapper {
  margin: 0 auto 1.5rem auto;
}
.hero-title-group .header-icon-wrapper svg {
  width: 40px;
  height: 40px;
  stroke-width: 2.2;
}
.hero-title-group h1 {
  font-size: clamp(2rem, 5vw, 2.8rem);
}
.hero-title-group .subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.2rem);
  max-width: 60ch;
  margin: 1rem auto 0 auto;
  color: var(--text-secondary);
}

.dropdown-menu {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 5px;
}
.user-dropdown.active .dropdown-menu {
  display: flex;
}
.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 15px;
  font-family: "Poppins", sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  text-align: left;
  background-color: transparent;
  color: var(--text-color);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s ease-in-out, color 0.2s ease-in-out;
}
.dropdown-item i {
  width: 18px;
  text-align: center;
  color: inherit;
  transition: color 0.2s ease-in-out;
}
.dropdown-item:hover {
  background-color: var(--background-secondary);
}
#progressBtn {
  color: var(--primary-color, #0d6efd);
}
#progressBtn:hover {
  background-color: rgba(13, 110, 253, 0.1);
}
#logoutBtn {
  color: var(--danger-color, #dc3545);
}
#logoutBtn:hover {
  background-color: rgba(220, 53, 69, 0.1);
  color: var(--danger-color-dark, #b02a37);
}

.validation-buttons {
  display: flex;
  margin-top: 1.5rem;
}
.validation-btn {
  flex: 1;
  font-size: 1rem;
}
.validation-btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.validation-feedback {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.6;
  border: 1px solid transparent;
}
.validation-feedback.positive {
  background-color: var(--success-bg, #e6f9ee);
  color: var(--success-color, #2e7d32);
  border-color: var(--success-color, #2e7d32);
}
.validation-feedback.negative,
.validation-feedback.info {
  background-color: var(--danger-bg, #fdebec);
  color: var(--danger-color, #c62828);
  border-color: var(--danger-color, #c62828);
}
.toggle-solution-btn {
  margin-top: 1.5rem;
}
.solution-content {
  margin-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
  display: none;
}
.solution-content.visible {
  display: block;
}

.section-box.quiz {
  padding: 2rem;
}
.section-box.quiz h4 {
  font-family: var(--font-headings);
  font-size: 1.4rem;
  color: var(--primary-accent);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.quiz-question {
  padding: 2.5rem;
  margin-bottom: 2.5rem;
  background-color: var(--bg-content);
  border: none;
  border-radius: 24px;
  box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.quiz-question:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.12);
}
.quiz-question p {
  font-weight: 600;
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--text-headings);
  margin-bottom: 2rem;
}
.quiz-options {
  list-style-type: none;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.quiz-options li {
  position: relative;
  padding: 1.25rem 1.5rem;
  border: 1px solid transparent;
  border-radius: 16px;
  font-weight: 500;
  font-size: 1.05rem;
  background-color: var(--bg-body);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.03);

  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
.quiz-options
  li:hover:not(.correct):not(.wrong):not(.pre-selected):not(.selected) {
  background-color: var(--primary-light);
  color: var(--primary-accent);
  transform: translateX(4px);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.1);
}

.quiz-options li.selected {
  border-color: var(--primary-accent);
  background-color: var(--primary-light);
  padding-right: 3.5rem;
}

.quiz-options li.selected::after {
  content: "✔";
  font-weight: bold;
  font-size: 1rem;
  position: absolute;
  top: 50%;
  right: 1rem;
  transform: translateY(-50%);
  color: var(--primary-accent);
  background-color: white;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}
.quiz-options li.correct {
  font-weight: 600;
  background-color: var(--success-bg);
  border-color: var(--success-color);
  color: var(--success-color);
}

.quiz-options li.incorrect {
  font-weight: 600;
  background-color: var(--danger-bg);
  border-color: var(--danger-color);
  color: var(--danger-color);
}
.quiz-feedback {
  display: none;
  padding: 1rem;
  margin-top: 1rem;
  font-size: 0.95rem;
  text-align: center;
  border-radius: var(--border-radius-md);
  opacity: 0;
  transition: opacity var(--transition-default);
}
.quiz-feedback.visible {
  display: block;
  opacity: 1;
}
.quiz-feedback.correct {
  color: var(--success-color);
  background-color: var(--success-bg, #e6f9ee);
  border: 1px solid var(--success-color);
}
.quiz-feedback.incorrect {
  color: var(--danger-color);
  background-color: var(--danger-bg, #fdebec);
  border: 1px solid var(--danger-color);
}

/* --- New Result Layout --- */
.quiz-result-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  width: 100%;
}

.quiz-result-score {
  font-family: var(--font-headings);
  line-height: 1;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.score-value {
  font-size: 5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 4px 10px rgba(79, 70, 229, 0.2));
  line-height: 1;
  margin-right: 0.2rem;
  display: block;
}

.score-separator {
  font-size: 2.5rem;
  color: var(--text-muted);
  margin: 0 0.5rem;
  font-weight: 300;
  line-height: 1;
  display: block;
}

.score-total {
  font-size: 2.5rem;
  color: var(--text-secondary);
  font-weight: 600;
  line-height: 1;
  display: block;
}

.quiz-result-xp {
  margin-bottom: 1.5rem;
  height: 40px;
}

.xp-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.5rem;
  background: white;
  color: var(--text-headings);
  font-weight: 700;
  border-radius: 50px;
  font-size: 1.1rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.05);
  animation: bounceIn 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.xp-badge i {
  width: 20px;
  height: 20px;
  color: var(--text-headings);
}

.quiz-result-message {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 90%;
  margin: 0 auto;
  line-height: 1.6;
}

/* Dans cours.css, ajoutez ceci à la fin ou près de la section .section-box.quiz */

.quiz-instruction {
  display: flex;
  align-items: center;
  gap: 10px;
  background-color: var(--info-bg);
  color: var(--text-primary);
  border-left: 4px solid var(--info-color);
  padding: 12px 16px;
  border-radius: var(--border-radius-md);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  animation: fadeIn 0.5s ease;
}

.quiz-instruction i {
  color: var(--info-color);
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.quiz-instruction strong {
  color: var(--info-color);
  font-weight: 600;
}
.tab-btn {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
}
.tab-btn.active {
  background-color: var(--accent);
  color: var(--accent-text);
  border-color: var(--accent);
}
.tab-btn.locked {
  opacity: 0.5;
  cursor: not-allowed;
}
.certificate {
  width: 100%;
  max-width: 960px;
  padding: 2.5rem;
  border: 3px solid #d4af37;
  border-radius: 8px;
  background-color: #fff;
  text-align: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
  position: relative;
}
.certificate::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 12px;
  right: 12px;
  bottom: 12px;
  border: 1px solid #e8d5a3;
  border-radius: 4px;
  pointer-events: none;
}
.certificate h1 {
  font-family: Georgia, serif;
  font-size: 1.8rem;
  font-weight: bold;
  color: #b4931c;
  margin-bottom: 0.5rem;
}
.certificate h2 {
  font-family: Georgia, serif;
  font-style: italic;
  font-size: 1.6rem;
  color: #000;
  margin: 0.4rem 0 1.2rem;
  text-align: center;
}
.certificate .description {
  font-size: 0.95rem;
  color: #333;
}
#downloadCertBtn {
  margin-top: 1.5rem;
  align-self: center;
}
@media (max-width: 600px) {
  .certificate {
    padding: 1.5rem;
    font-size: 0.9rem;
  }
  .certificate h1 {
    font-size: 1.4rem;
  }
  .certificate h2 {
    font-size: 1.3rem;
  }
  #downloadCertBtn {
    width: 100%;
  }
}

.loading-spinner,
.spin {
  animation: spin 1s linear infinite;
}

/* spin, fadeIn, pulse are in _animations.css */

@keyframes modal-fade-in {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}
@keyframes zoomIn {
  from {
    transform: scale(0.8);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* Daily Challenge & Leaderboard */

.daily-options-grid {
  display: grid;
  gap: 1rem;
  margin: 1.5rem 0;
}

.daily-option-btn {
  padding: 1rem;
  background: var(--bg-content);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-md);
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s;
  width: 100%;
  text-align: left;
  color: var(--text-primary);
}

.daily-option-btn:hover:not(:disabled) {
  border-color: var(--primary-accent);
  background: var(--primary-light);
}

.daily-option-btn.correct {
  background: var(--success-bg);
  border-color: var(--success-color);
  color: var(--success-color);
}

.daily-option-btn.incorrect {
  background: var(--danger-bg);
  border-color: var(--danger-color);
  color: var(--danger-color);
}

/* --- TOOLBOX STYLES --- */

.toolbox-tabs {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
}

/* Responsive pour les onglets de la boîte à outils */
@media (max-width: 768px) {
  .toolbox-tabs {
    overflow-x: auto;
    overflow-y: hidden;
    gap: 0.5rem;
    padding-bottom: 0.8rem;
    margin-bottom: 1.5rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }

  .toolbox-tabs::-webkit-scrollbar {
    height: 4px;
  }

  .toolbox-tabs::-webkit-scrollbar-track {
    background: var(--bg-alt);
    border-radius: 2px;
  }

  .toolbox-tabs::-webkit-scrollbar-thumb {
    background: var(--primary-accent);
    border-radius: 2px;
  }
}

@media (max-width: 480px) {
  .toolbox-tabs {
    gap: 0.4rem;
  }
}

#snippetSearch {
  padding: 0.8rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  background: var(--bg-content);
  color: var(--text-primary);
  font-size: 1rem;
}

.snippet-card {
  background: var(--bg-content);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 1.5rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.snippet-card h3 {
  color: var(--text-headings);
  margin: 0 0 0.5rem 0;
}

.snippet-card .snippet-location {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.snippet-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-accent);
}

.badge {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-weight: bold;
  text-transform: uppercase;
}

.badge.base {
  background: #e3f2fd;
  color: #1976d2;
}
.badge.player {
  background: #e8f5e9;
  color: #2e7d32;
}
.badge.physics {
  background: #fff3e0;
  color: #f57c00;
}
.badge.ui {
  background: #f3e5f5;
  color: #7b1fa2;
}

.snippet-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.snippet-card pre {
  margin: 0 0 1rem 0;
  max-height: 300px;
  overflow: auto;
  position: relative;
  border-radius: var(--border-radius-md);
  scrollbar-width: thin;
  scrollbar-color: #4a5568 #2d3748;
  background: #2d3748;
  border: 1px solid #4a5568;
}

.snippet-card pre::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.snippet-card pre::-webkit-scrollbar-track {
  background: #1a202c;
  border-radius: 4px;
}

.snippet-card pre::-webkit-scrollbar-thumb {
  background: #4a5568;
  border-radius: 4px;
}

.snippet-card pre::-webkit-scrollbar-thumb:hover {
  background: var(--primary-hover);
}

/* Même style pour les templates */
.template-card pre {
  margin: 0 0 1rem 0;
  max-height: 400px;
  overflow: auto;
  position: relative;
  border-radius: var(--border-radius-md);
  scrollbar-width: thin;
  scrollbar-color: #4a5568 #2d3748;
  background: #2d3748;
  border: 1px solid #4a5568;
}

.template-card pre::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.template-card pre::-webkit-scrollbar-track {
  background: #1a202c;
  border-radius: 4px;
}

.template-card pre::-webkit-scrollbar-thumb {
  background: #4a5568;
  border-radius: 4px;
}

.template-card pre::-webkit-scrollbar-thumb:hover {
  background: var(--primary-hover);
}

/* --- MODULE TABS STYLES --- */

.tab-btn {
  background-color: var(--bg-content);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 0.8rem 1.5rem;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: var(--font-headings);
  font-size: 1rem;
  white-space: nowrap;
}

.tab-btn i {
  font-size: 1.1rem;
}

.tab-btn:hover {
  background-color: var(--bg-alt);
  transform: translateY(-2px);
  color: var(--text-primary);
}

.tab-btn.active {
  background: var(--gradient-primary);
  color: var(--text-on-accent);
  border-color: transparent;
  box-shadow: var(--shadow-accent);
}

.tab-content {
  display: none;
  animation: fadeIn 0.4s ease-out;
}

.tab-content.active {
  display: block;
}

/* Premium Card Styling for Content */
.module-card {
  background: var(--bg-content);
  border-radius: var(--border-radius-xl);
}

/* Fix for nested containers in Module 0 redesign */
.module-card {
  background: var(--bg-content);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.tab-btn {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-bottom: none;
  margin-bottom: -1px;
  background: transparent;
  border: 1px solid transparent;
  white-space: nowrap;
}

.tab-btn.active {
  background: var(--bg-content);
  border-color: var(--border-color);
  border-bottom-color: var(--bg-content);
  color: var(--primary-accent);
  box-shadow: inset 0 3px 0 0 var(--primary-accent);
}

.tab-content {
  padding: 0;
  background: transparent;
  flex: 1;
}

/* Footer Validation Bar - Redesigned as a Completion Card */
.module-footer-validation {
  background: transparent;
  border-top: none;
  padding: 4rem 1rem 6rem 1rem;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 10;
  box-shadow: none;
  margin-top: 2rem;
}

.module-footer-validation .validation-wrapper {
  width: 100%;
  max-width: 500px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  background: var(--bg-content);
  padding: 2.5rem;
  border-radius: 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Decorative background element for the card */
.module-footer-validation .validation-wrapper::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(
    90deg,
    var(--primary-accent),
    var(--secondary-accent)
  );
}

.module-footer-validation .validation-feedback {
  margin: 0;
  width: 100%;
  text-align: left;
  background: var(--bg-alt);
  padding: 1rem 1.5rem;
  border-radius: 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.module-footer-validation .validation-buttons {
  margin: 0;
  width: 100%;
  display: flex;
  justify-content: center;
}

/* Redesigned Validation Button */
.validation-btn {
  width: 100%;
  padding: 1rem 2rem;
  font-size: 1.1rem;
  font-weight: 700;
  border-radius: 16px;
  border: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  font-family: var(--font-headings);
  position: relative;
  overflow: hidden;
}

/* Primary State (Ready to Validate) */
.validation-btn.btn-primary {
  background: var(--primary-accent);
  color: white;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.validation-btn.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.4);
}

.validation-btn.btn-primary:active {
  transform: translateY(0);
}

/* Validated State (Module terminé - non modifiable) */

/* Secondary State (Cancel / Undo) */
.validation-btn.btn-secondary {
  background: transparent;
  color: var(--text-muted);
  border: 2px solid var(--border-color);
  box-shadow: none;
}

.validation-btn.btn-secondary:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
  background: var(--bg-alt);
}

/* V2: Points Badge (Star icon) */

.xp-badge.points-badge {
  background: linear-gradient(
    135deg,
    rgba(99, 102, 241, 0.15) 0%,
    rgba(139, 92, 246, 0.15) 100%
  );
  color: var(--primary-accent);
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.xp-badge.points-badge {
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  font-weight: 700;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

/* Exercise Points Badge Container */

.xp-badge.points-badge.muted {
  opacity: 0.6;
  background: rgba(107, 114, 128, 0.1);
  color: #6b7280;
  border-color: rgba(107, 114, 128, 0.2);
}

@media (min-width: 768px) {
  .tab-content {
    padding: 0;
  }
  .module-footer-validation {
    padding: 4rem 3rem 6rem 3rem;
  }
}

/* Reset inner cards */
.module-card .concept-section,
.module-card .content-block,
.module-card .section-box {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
  margin-top: 3rem;
}

.module-card .concept-section:first-child {
  margin-top: 1rem;
}

/* Adjust headings inside the simplified sections */
.module-card .concept-section h2 {
  margin-top: 0;
}

/* Ensure tab content has proper spacing */
.tab-content {
  padding-top: 0;
}

/* Fix for tip-box/info-box spacing if they are tight */
.info-box,
.tip-box {
  margin: 1.5rem 0;
}

/* ================================================
   ENHANCED CODE BLOCKS - DARK THEME WITH COPY
   ================================================ */

/* Code Block Wrapper with Header and Copy Button */
.code-block-wrapper {
  position: relative;
  margin: 1.5rem 0;
  background: #1a202c;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid #2d3748;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

.code-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: #2d3748;
  border-bottom: 1px solid #4a5568;
}

.code-block-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: #a0aec0;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.code-block-title i {
  width: 14px;
  height: 14px;
  color: #a1a1aa;
}

.copy-code-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #a1a1aa;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s ease;
}

.copy-code-btn.icon-only {
  padding: 0.4rem;
  width: 32px;
  height: 32px;
  justify-content: center;
}

.copy-code-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #a1a1aa;
  color: #fff;
}

.copy-code-btn.copied {
  background: rgba(72, 187, 120, 0.2);
  border-color: #48bb78;
  color: #48bb78;
}

.copy-code-btn i {
  width: 14px;
  height: 14px;
}

/* Code Block Content */
.snippet-card pre code,
.template-card pre code,
.code-block-wrapper pre code {
  display: block;
  position: relative;
  background: #2d3748;
  color: #e2e8f0;
  padding: 1.5rem;
  margin: 0;
  font-family: "Fira Code", "Consolas", "Monaco", monospace;
  font-size: 0.95rem;
  line-height: 1.7;
  overflow-x: auto;
  white-space: pre;
  border: none;
}

/* Syntax Highlighting for Lua/Luau */
.code-block-wrapper pre code .comment,
.code-card pre code .comment {
  color: #6a9955;
  font-style: italic;
}

.code-block-wrapper pre code .keyword,
.code-card pre code .keyword {
  color: #569cd6;
  font-weight: 600;
}

.code-block-wrapper pre code .string,
.code-card pre code .string {
  color: #ce9178;
}

.code-block-wrapper pre code .number,
.code-card pre code .number {
  color: #b5cea8;
}

.code-block-wrapper pre code .function,
.code-card pre code .function {
  color: #dcdcaa;
}

.code-block-wrapper pre code .variable,
.code-card pre code .variable {
  color: #9cdcfe;
}

/* Ombre pour indiquer qu'il y a du contenu en dessous/à droite */
.snippet-card pre,
.template-card pre,
.code-block-wrapper pre {
  box-shadow: inset 0 -10px 10px -10px rgba(0, 0, 0, 0.3),
    inset -10px 0 10px -10px rgba(0, 0, 0, 0.3);
}

/* Copy Buttons - Style générique */
.copy-btn {
  width: 100%;
  padding: 0.6rem;
  background: var(--bg-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 500;
  transition: all 0.2s;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.copy-btn:hover {
  background: var(--primary-light);
  color: var(--primary-accent);
  border-color: var(--primary-accent);
}

.copy-btn i {
  width: 16px;
  height: 16px;
}

/* Templates Grid */

.template-card {
  background: var(--bg-content);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 1.5rem;
}

.template-card h3 {
  color: var(--text-headings);
}

/* Errors List */

.error-header {
  background: rgba(239, 68, 68, 0.1);
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  border-radius: 8px 8px 0 0;
}

[data-theme="dark"] .error-header {
  background: rgba(239, 68, 68, 0.15);
}

.error-code {
  font-family: "Consolas", monospace;
  font-weight: bold;
  color: #f57c00;
  font-size: 0.95rem;
}

.error-body {
  padding: 1.5rem;
}

.error-body h4 {
  margin: 1rem 0 0.5rem 0;
  font-size: 1rem;
  color: var(--text-headings);
}

.error-body h4:first-child {
  margin-top: 0;
}

.error-body p {
  margin: 0 0 1rem 0;
  color: var(--text-primary);
}

.error-body pre {
  margin: 0.5rem 0 1rem 0;
}

/* ===== RESPONSIVE TOOLBOX - MOBILE ===== */
@media (max-width: 768px) {
  .snippet-card,
  .template-card {
    padding: 1.2rem;
  }
}
@media (max-width: 480px) {
  .toolbox-section {
    font-size: 0.9rem;
  }

  .info-box {
    flex-direction: column;
    text-align: center;
    padding: 1rem;
  }

  .info-box-icon {
    margin-bottom: 0.5rem;
  }

  .info-box h5 {
    font-size: 1rem;
  }

  .info-box p {
    font-size: 0.85rem;
  }

  #snippetSearch {
    font-size: 0.9rem;
    padding: 0.6rem;
  }

  .snippet-card,
  .template-card {
    padding: 1rem;
  }

  .badge {
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
  }

  .snippet-desc {
    font-size: 0.85rem;
  }

  .snippet-card pre,
  .template-card pre {
    font-size: 0.8rem;
    max-height: 200px;
  }

  .copy-btn {
    padding: 0.5rem;
    font-size: 0.85rem;
  }

  .error-header {
    padding: 0.8rem;
  }

  .error-code {
    font-size: 0.85rem;
    word-break: break-word;
  }

  .error-body {
    padding: 1rem;
  }

  .error-body h4 {
    font-size: 0.95rem;
  }

  .error-body pre {
    font-size: 0.75rem;
    overflow-x: auto;
    font-style: italic;
  }

  /* Info niveau */
  .xp-level-info {
    background: var(--primary-light);
    border-left: 4px solid var(--primary-accent);
    padding: 1rem;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
  }

  .xp-level-info i {
    color: var(--primary-accent);
    margin-top: 0.2rem;
    flex-shrink: 0;
  }

  .xp-level-info p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-primary);
  }

  .xp-level-info .highlight {
    color: var(--primary-accent);
    font-weight: 700;
  }

  /* Barre de progression XP - shimmer is in _animations.css */

  @media (max-width: 768px) {
    .xp-rewards-grid {
      grid-template-columns: 1fr;
      gap: 1rem;
    }

    .xp-reward-item {
      padding: 0.8rem;
    }

    .xp-reward-icon {
      width: 45px;
      height: 45px;
    }

    .xp-info-container {
      padding: 1rem;
    }
  }

  @media (max-width: 480px) {
    .xp-info-header h5 {
      font-size: 1rem;
    }

    .xp-reward-content strong {
      font-size: 0.95rem;
    }

    .xp-reward-values {
      font-size: 0.85rem;
      flex-direction: column;
      align-items: flex-start;
      gap: 0.3rem;
    }

    .xp-badge {
      font-size: 0.75rem;
    }

    .xp-level-info {
      flex-direction: column;
    }
  }

  /* --- Styles Système XP --- */

  /* Badge XP récompense quiz */

  /* Sidebar XP Progress */
  .sidebar-progress-container {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.02);
    position: relative;
    transition: all 0.3s ease;
  }

  /* 🥚 Texte Version v2.0.0 avec Easter Egg */
  .version-text-container {
    margin-top: 0.75rem;
    text-align: center;
    position: relative;
    padding: 0.5rem;
    border-radius: 8px;
    cursor: default;
    user-select: none;
    -webkit-user-select: none;
    transition: all 0.3s ease;
  }

  .version-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
  }

  .version-text.pioneer-unlocked {
    color: #d97706;
    font-weight: 700;
  }

  .version-progress-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    width: 0%;
    background: linear-gradient(90deg, #fbbf24, #d97706);
    border-radius: 2px;
    transition: width 0.05s linear;
  }

  /* État pendant l'appui */
  .version-text-container.pressing {
    background: rgba(251, 191, 36, 0.1);
  }

  .version-text-container.pressing .version-text {
    color: #d97706;
  }

  /* Effet de couleur après 5 secondes */
  .version-text-container.color-effect {
    background: linear-gradient(
      135deg,
      rgba(251, 191, 36, calc(0.1 + var(--glow-intensity, 0) * 0.2)),
      rgba(217, 119, 6, calc(0.1 + var(--glow-intensity, 0) * 0.15))
    );
    box-shadow: 0 0 calc(10px + var(--glow-intensity, 0) * 20px)
      rgba(251, 191, 36, calc(0.3 + var(--glow-intensity, 0) * 0.4));
    animation: colorPulse 0.5s ease-in-out infinite alternate;
  }

  .version-text-container.color-effect .version-text {
    color: #b45309;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(251, 191, 36, 0.5);
  }

  .version-text-container.color-effect .version-progress-bar {
    box-shadow: 0 0 8px rgba(251, 191, 36, 0.8);
  }

  /* Effet de révélation progressive */
  .sidebar-progress-container.orblox-revealing {
    border-color: rgba(251, 191, 36, 0.3);
    background: rgba(251, 191, 36, 0.03);
  }

  .sidebar-progress-container.orblox-revealing::before {
    content: "";
    position: absolute;
    inset: 0;
    border: 2px solid transparent;
    border-image: linear-gradient(90deg, transparent, #fbbf24, transparent) 1;
    animation: orbloxBorderReveal 0.5s ease-out;
    pointer-events: none;
  }

  /* État OrBlox Pionnier activé - effet doré permanent */
  .sidebar-progress-container.orblox-pioneer-active {
    border: 2px solid rgba(251, 191, 36, 0.4);
    border-radius: 12px;
    background: linear-gradient(
      135deg,
      rgba(251, 191, 36, 0.08) 0%,
      rgba(217, 119, 6, 0.05) 100%
    );
    box-shadow: 0 0 20px rgba(251, 191, 36, 0.15),
      inset 0 0 30px rgba(251, 191, 36, 0.05);
    margin: 0.5rem;
    padding: 0.75rem 1.25rem;
  }

  .sidebar-progress-container.orblox-pioneer-active::before {
    content: "👑";
    position: absolute;
    top: -8px;
    right: 10px;
    font-size: 0.9rem;
    z-index: 10;
    animation: crownFloat 3s ease-in-out infinite;
  }

  .sidebar-progress-container.orblox-pioneer-active .sidebar-progress-bar-fill {
    background: linear-gradient(90deg, #fbbf24, #f59e0b, #d97706) !important;
    box-shadow: 0 0 10px rgba(251, 191, 36, 0.5);
  }

  @keyframes orbloxBorderReveal {
    from {
      opacity: 0;
    }
    to {
      opacity: 1;
    }
  }

  @keyframes crownFloat {
    0%,
    100% {
      transform: translateY(0) rotate(-5deg);
    }
    50% {
      transform: translateY(-3px) rotate(5deg);
    }
  }

  .sidebar-progress-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 8px;
  }

  .sidebar-progress-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
  }

  .sidebar-progress-value {
    font-size: 0.85rem;
    color: var(--primary-accent);
    font-weight: 700;
    font-family: var(--font-mono, monospace);
  }

  .sidebar-progress-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
  }

  .sidebar-progress-bar-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 3px;
    transition: width 0.5s ease-out;
    box-shadow: 0 0 10px rgba(var(--primary-accent-rgb), 0.3);
  }

  /* --- Styles Modale XP (Design Premium Gold) --- */

  /* Titre de section ajouté via CSS */

  .xp-details {
    flex: 1;
  }

  .xp-details h3 {
    margin: 0 0 0.8rem 0;
    font-size: 1.2rem;
    color: white;
    font-weight: 700;
  }

  @media (max-width: 480px) {
    .xp-details h3 {
      font-size: 1.1rem;
    }
  }
}

/* --- REFONTE MODULE DESIGN (NEW) --- */

.module-header-card {
  background: var(--bg-content);
  border-radius: 24px;
  padding: 3rem 2rem;
  text-align: center;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  margin-bottom: 2.5rem;
  position: relative;
  overflow: hidden;
}

.module-header-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--gradient-primary);
}

.header-icon-large {
  width: 80px;
  height: 80px;
  background: var(--bg-alt);
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem auto;
  color: var(--primary-accent);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.header-icon-large .lucide {
  width: 40px;
  height: 40px;
  stroke-width: 1.5px;
}

.module-header-card h1 {
  font-size: 2.2rem;
  margin-bottom: 0.75rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.module-header-card p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

.module-nav-pills-container {
  height: auto;
  min-height: 60px;
  margin-bottom: 2rem;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 10; /* Bas z-index pour ne pas superposer la sidebar */
}

.module-nav-pills {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: nowrap;
  width: fit-content;
  max-width: 95%;
  padding: 0.5rem 1rem;
  background: var(--bg-content);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 50px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--border-color);
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  transition: padding 0.25s ease-out, background 0.25s ease-out,
    box-shadow 0.25s ease-out, opacity 0.2s ease-out;
  z-index: 100;
}

.module-nav-pills.scrolled {
  position: fixed;
  top: calc(var(--header-height) + 0.75rem);
  left: calc(50% + var(--sidebar-width) / 2);
  transform: translateX(-50%);
  padding: 0.35rem 0.8rem;
  background: var(--bg-content);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border-color);
  margin: 0;
  z-index: 100;
  /* Animation douce d'apparition */
  animation: navPillsSlideIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Animation d'apparition douce et fluide */
@keyframes navPillsSlideIn {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(-12px);
  }
  100% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* Adjust center when sidebar is collapsed - transition douce uniquement pour ce cas */
.sidebar.collapsed ~ .main-content .module-nav-pills.scrolled,
body:has(.sidebar.collapsed) .module-nav-pills.scrolled {
  left: 50%;
  transition: left 0.3s ease-out, padding 0.25s ease-out,
    background 0.25s ease-out, box-shadow 0.25s ease-out;
}

/* Mobile/Tablet: désactiver complètement le sticky (la linear bar est utilisée) */
@media (max-width: 1024px) {
  .module-nav-pills.scrolled {
    position: static !important;
    transform: none !important;
    left: auto !important;
    top: auto !important;
    padding: 0.5rem 1rem !important;
    background: var(--bg-content) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05) !important;
    margin: 0 auto !important;
    z-index: 10 !important;
  }

  /* Annuler TOUS les changements de style des pills au scroll sur mobile/tablet */
  .module-nav-pills.scrolled .nav-pill {
    padding: 0.8rem 1.5rem !important;
    font-size: 1rem !important;
    gap: 0.8rem !important;
  }

  .module-nav-pills.scrolled .nav-pill i,
  .module-nav-pills.scrolled .nav-pill .lucide {
    width: 20px !important;
    height: 20px !important;
  }
}

.module-nav-pills::-webkit-scrollbar {
  display: none;
}

/* Dark Mode Support via data-theme attribute */
[data-theme="dark"] .module-nav-pills {
  background: var(--bg-content);
  border-color: var(--border-color);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

[data-theme="dark"] .module-nav-pills.scrolled {
  background: var(--bg-content);
  border-color: var(--border-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .nav-pill {
  color: var(--text-secondary);
}

[data-theme="dark"] .nav-pill:hover {
  color: var(--primary-accent);
  background: var(--bg-alt);
}

[data-theme="dark"] .nav-pill.active {
  color: white;
  background: var(--primary-accent);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.nav-pill {
  background: transparent;
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-family: var(--font-headings);
  font-size: 1rem;
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-pill i,
.nav-pill .lucide {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Desktop: Shrink pills when sticky - transitions fluides sans scale */
@media (min-width: 1025px) {
  .module-nav-pills.scrolled .nav-pill {
    padding: 0.5rem 1rem;
    font-size: 0.88rem;
    gap: 0.5rem;
  }

  .module-nav-pills.scrolled .nav-pill i,
  .module-nav-pills.scrolled .nav-pill .lucide {
    width: 17px;
    height: 17px;
  }
}

/* Responsive: Tablette */
@media (max-width: 768px) {
  .module-nav-pills-container {
    padding: 0 1rem;
    margin-bottom: 1.5rem;
  }

  .module-nav-pills,
  .module-nav-pills.scrolled {
    width: 100% !important;
    max-width: 100% !important;
    gap: 0.4rem !important;
    padding: 0.4rem 0.6rem !important;
    border-radius: 16px !important;
    flex-wrap: nowrap !important;
    justify-content: center !important;
  }

  .nav-pill,
  .module-nav-pills.scrolled .nav-pill {
    padding: 0.65rem 1rem !important;
    font-size: 0.9rem !important;
    gap: 0.5rem !important;
    flex: 0 1 auto !important;
    border-radius: 12px !important;
  }

  .nav-pill i,
  .nav-pill .lucide,
  .module-nav-pills.scrolled .nav-pill i,
  .module-nav-pills.scrolled .nav-pill .lucide {
    width: 18px !important;
    height: 18px !important;
  }
}

/* Responsive: Mobile */
@media (max-width: 640px) {
  .module-nav-pills-container {
    padding: 0 0.75rem;
  }

  .module-nav-pills,
  .module-nav-pills.scrolled {
    gap: 0.3rem !important;
    padding: 0.35rem 0.5rem !important;
    border-radius: 14px !important;
    justify-content: space-between !important;
  }

  .nav-pill,
  .module-nav-pills.scrolled .nav-pill {
    padding: 0.55rem 0.7rem !important;
    font-size: 0.82rem !important;
    gap: 0.35rem !important;
    flex: 1 !important;
    justify-content: center !important;
    border-radius: 10px !important;
    min-width: 0 !important;
  }

  .nav-pill i,
  .nav-pill .lucide,
  .module-nav-pills.scrolled .nav-pill i,
  .module-nav-pills.scrolled .nav-pill .lucide {
    width: 16px !important;
    height: 16px !important;
    flex-shrink: 0 !important;
  }
}

/* Responsive: Très petits écrans */
@media (max-width: 400px) {
  .module-nav-pills,
  .module-nav-pills.scrolled {
    padding: 0.3rem 0.4rem !important;
    gap: 0.25rem !important;
  }

  .nav-pill,
  .module-nav-pills.scrolled .nav-pill {
    padding: 0.5rem 0.55rem !important;
    font-size: 0.75rem !important;
    gap: 0.25rem !important;
  }

  .nav-pill span {
    display: none; /* Masquer le texte, garder seulement l'icône */
  }

  .nav-pill i,
  .nav-pill .lucide,
  .module-nav-pills.scrolled .nav-pill i,
  .module-nav-pills.scrolled .nav-pill .lucide {
    width: 18px !important;
    height: 18px !important;
  }
}

.nav-pill:hover {
  color: var(--primary-accent);
  background: var(--bg-alt);
}

.nav-pill.active {
  background: var(--primary-accent);
  color: white;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.nav-pill.active:hover {
  transform: translateY(-1px);
}

.content-card {
  background: var(--bg-content);
  border-radius: 24px;
  padding: clamp(2.5rem, 6vw, 4rem);
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.08);
  margin-bottom: 3rem;
}

.content-card h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  letter-spacing: -0.02em;
}

/* Override existing styles for cleaner look inside cards */
.content-card .concept-section {
  box-shadow: none;
  border: none;
  padding: 0;
  margin-top: 0;
  background: transparent;
}
@media (max-width: 640px) {
  .content-card {
    padding: 1.5rem 1rem;
  }

  .section-box.quiz {
    padding: 0;
    margin-top: 1rem;
  }

  .quiz-question {
    padding: 1rem;
    margin-bottom: 1.5rem;
  }

  .quiz-options li {
    padding: 0.8rem;
    padding-right: 3rem;
    font-size: 0.95rem;
  }

  /* Fix checkmark position on mobile */

  .quiz-options li.selected::after {
    right: 0.8rem;
    width: 24px;
    height: 24px;
    font-size: 0.9rem;
  }
}

/* --- SMART NAVIGATION BAR --- */
.smart-nav-bar {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 800px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 16px;
  padding: 12px 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1), 0 4px 10px rgba(0, 0, 0, 0.05);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: space-between;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Show only on mobile/tablet (when sidebar is likely hidden or collapsed) */
@media (max-width: 768px) {
  .smart-nav-bar {
    display: flex;
  }
}

/* Dark theme support - using data-theme attribute */
[data-theme="dark"] .smart-nav-bar {
  background: rgba(30, 41, 59, 0.95);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 4px 10px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .nav-btn {
  color: var(--text-secondary);
}

[data-theme="dark"] .nav-btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

[data-theme="dark"] .nav-module-info {
  color: rgba(255, 255, 255, 0.7);
}

[data-theme="dark"] .smart-nav-progress {
  background: rgba(255, 255, 255, 0.1);
}

.smart-nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 1rem;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 12px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-weight: 600;
  font-family: var(--font-headings);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.95rem;
}

.nav-btn:hover:not(:disabled) {
  background: var(--bg-alt);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.nav-btn.primary {
  background: var(--primary-accent);
  color: white;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.nav-btn.primary:hover:not(:disabled) {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.3);
}

.nav-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex: 1;
}

.nav-module-info {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

@media (max-width: 640px) {
  .smart-nav-bar {
    width: 94%;
    bottom: 12px;
    padding: 10px 14px;
  }

  .nav-btn span {
    display: none;
  }

  .nav-btn {
    padding: 10px;
  }

  .nav-module-info {
    max-width: 150px;
    font-size: 0.8rem;
  }
}

.smart-nav-progress {
  width: 100%;
  height: 4px;
  background: var(--bg-alt);
  border-radius: 2px;
  margin-top: 4px;
  overflow: hidden;
  max-width: 120px;
}

.smart-nav-progress-fill {
  height: 100%;
  background: var(--primary-accent);
  width: 0%;
  transition: width 0.3s ease;
}

/* --- SIDEBAR SUB-MENU (TABS) - ULTRA COMPACT --- */
.sidebar-sub-menu {
  list-style: none;
  padding: 0;
  margin: 0 0 0 1.8rem;
  border-left: none;
  overflow: hidden;
  animation: sidebarSlideDown 0.2s ease-out;
}

@keyframes sidebarSlideDown {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.nav-sub-link {
  display: block;
  padding: 3px 10px;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.1s;
  border-left: 2px solid transparent;
  margin-left: -1px;
  line-height: 1.3;
}

.nav-sub-link:hover {
  color: var(--text-primary);
  background: rgba(0, 0, 0, 0.02);
}

.nav-sub-link.active {
  color: var(--primary-accent);
  font-weight: 600;
  border-left-color: var(--primary-accent);
  background: var(--primary-light);
}

.nav-sub-link i {
  display: none;
}

/* Rotate the ICON, not the container, to avoid rotating the tooltip */

/* Custom Tooltip for Toggle - uses tooltipFadeIn */

@keyframes tooltipFadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(-8px);
  }
}

.sidebar-sub-menu.collapsed {
  display: none;
}

/* =========================================
   STYLES EXERCICES À TROUS (GLOBALISÉS)
   ========================================= */

.code-input {
  background: #0f172a;
  border: 1px solid #475569;
  color: #38bdf8;
  border-radius: 4px;
  padding: 0.2rem 0.5rem;
  font-family: inherit;
  font-size: inherit;
  min-width: 80px;
  width: auto;
  max-width: 200px;
  text-align: center;
  transition: all 0.2s;
  display: inline-block;
}

.code-input:focus {
  outline: none;
  border-color: var(--primary-accent);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.code-input.success {
  border-color: #10b981;
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
}

.code-input.error {
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

.exercise-feedback {
  margin-top: 1rem;
  display: none;
  padding: 1rem;
  border-radius: 8px;
}

.exercise-feedback.success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid #10b981;
  color: #10b981;
  display: block;
}

.exercise-feedback.error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid #ef4444;
  color: #ef4444;
  display: block;
}

/* =========================================
   TEXT ELLIPSIS POUR SIDEBAR NAV-LINKS
   ========================================= */
.sidebar-main-modules .nav-link,
.sidebar ul li a {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar-main-modules .nav-link i,
.sidebar ul li a i {
  flex-shrink: 0;
}

/* ==========================================
   BOUTON POUR VOIR LES IMAGES (MODULE)
   ========================================== */

/* Ensure sidebar is flex column for footer positioning */
.sidebar {
  display: flex;
  flex-direction: column;
}

/* Mini Boost Badge */
.mini-boost-badge {
  margin-left: auto;
  background: rgba(var(--primary-accent-rgb, 99, 102, 241), 0.15);
  color: var(--primary-accent);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.65rem;
  font-weight: 700;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  cursor: help;
  transition: all 0.2s ease;
  position: relative;
}

.mini-boost-badge:hover {
  background: rgba(var(--primary-accent-rgb, 99, 102, 241), 0.25);
  transform: scale(1.05);
}

/* Custom Tooltip */
.sidebar-progress-header {
  position: relative;
}

.mini-boost-badge {
  position: relative;
}

.mini-boost-badge::after {
  content: attr(data-tooltip);
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) scale(0.9);
  background: var(--bg-card);
  color: var(--text-primary);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all 0.2s ease;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  z-index: 100000;
}

.mini-boost-badge::before {
  content: "";
  position: absolute;
  top: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-bottom-color: var(--bg-card);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 100001;
}

.mini-boost-badge:hover::after {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}

.mini-boost-badge:hover::before {
  opacity: 1;
}
@keyframes boostSlideInRight {
  from {
    opacity: 0;
    transform: translateX(100px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@media (max-width: 768px) {
  .mini-boost-badge::after {
    font-size: 0.7rem;
    padding: 6px 10px;
    max-width: 180px;
    white-space: normal;
    text-align: center;
    line-height: 1.3;
  }
}

/* Support Banner Minimal Redesign (V2 - Compact & Neutral)
   ========================================== */
.support-banner-minimal {
  position: fixed;
  bottom: 20px;
  right: 20px;
  left: auto;
  transform: none;
  width: auto;
  max-width: 400px;
  background: var(--bg-content);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--primary-accent);
  border-radius: 12px;
  padding: 0.75rem 1rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  z-index: 1000;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.support-banner-minimal.hidden {
  transform: translateY(20px);
  opacity: 0;
  pointer-events: none;
}

/* Removed the gradient pseudo-element */

.support-banner-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 0.75rem;
}

.support-banner-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.support-banner-icon {
  font-size: 1.4rem;
  animation: pulse-heart 2s infinite;
}

@keyframes pulse-heart {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

.support-banner-text {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.support-banner-text strong {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-headings);
}

.support-banner-text span {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.support-banner-btn {
  background: var(--bg-alt);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.8rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.support-banner-btn:hover {
  background: var(--primary-accent);
  color: white;
  border-color: var(--primary-accent);
  transform: translateY(-1px);
}

.support-banner-close {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--text-headings);
  color: var(--bg-content);
  border: 2px solid var(--bg-content);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  transition: all 0.2s;
  z-index: 1001;
  font-size: 12px;
}

.support-banner-close:hover {
  background: #ef4444;
  color: white;
  transform: scale(1.1);
}

@media (max-width: 600px) {
  .support-banner-minimal {
    width: calc(100% - 32px);
    right: 16px;
    left: 16px;
    bottom: 16px;
    max-width: none;
    flex-direction: row;
    flex-wrap: wrap;
    padding: 0.75rem;
    gap: 0.5rem;
  }

  .support-banner-content {
    flex-direction: row;
    text-align: left;
    gap: 0.5rem;
    flex-wrap: wrap;
  }

  .support-banner-left {
    flex: 1;
    min-width: 180px;
  }

  .support-banner-btn {
    width: auto;
    margin-left: auto;
  }
}

/* ============================================
   💰 SYSTÈME CODE PAYANT (UNLOCK AVEC STUDS)
   ============================================ */

/* Container du code caché */
.code-locked {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  margin: 1rem 0;
  min-height: 360px; /* Hauteur minimale pour afficher l'overlay + lien */
  background: linear-gradient(135deg, #f0f4ff 0%, #e8ecf8 100%);
  border: 1px solid rgba(168, 85, 247, 0.2);
}

/* Thème sombre */
[data-theme="dark"] .code-locked {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

/* Quand le code est débloqué, retirer les styles de placeholder */
.code-locked.unlocked {
  min-height: auto;
  background: transparent;
  border: none;
}

/* Le code flouté */
.code-locked .code-card,
.code-locked .code-block-wrapper {
  filter: blur(8px);
  user-select: none;
  pointer-events: none;
  transition: filter 0.5s ease;
}

/* Overlay de déblocage */
.code-unlock-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.92) 0%,
    rgba(245, 245, 255, 0.95) 100%
  );
  backdrop-filter: blur(4px);
  border-radius: 12px;
  padding: 2rem;
  gap: 0.75rem;
  z-index: 10;
}

/* Thème sombre pour l'overlay */
[data-theme="dark"] .code-unlock-overlay {
  background: linear-gradient(
    135deg,
    rgba(15, 15, 25, 0.92) 0%,
    rgba(30, 30, 50, 0.95) 100%
  );
}

.code-unlock-icon {
  font-size: 3rem;
  animation: lockPulse 2s ease-in-out infinite;
}

@keyframes lockPulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.1);
    opacity: 1;
  }
}

.code-unlock-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #1f2937;
  text-align: center;
}

[data-theme="dark"] .code-unlock-title {
  color: white;
}

.code-unlock-desc {
  font-size: 0.9rem;
  color: #6b7280;
  text-align: center;
  max-width: 280px;
  line-height: 1.5;
}

[data-theme="dark"] .code-unlock-desc {
  color: #a1a1aa;
}

/* Bouton de déblocage */
.btn-unlock-code {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, #a855f7 0%, #7c3aed 100%);
  border: none;
  border-radius: 10px;
  color: white;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(168, 85, 247, 0.3);
}

.btn-unlock-code:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(168, 85, 247, 0.4);
}

.btn-unlock-code:disabled {
  background: #374151;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-unlock-code i {
  width: 18px;
  height: 18px;
}

.unlock-price {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: rgba(255, 255, 255, 0.15);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  font-weight: 700;
}

/* État débloqué */
.code-locked.unlocked .code-card,
.code-locked.unlocked .code-block-wrapper {
  filter: none;
  user-select: auto;
  pointer-events: auto;
}

.code-locked.unlocked .code-unlock-overlay {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease;
}

/* Alternative : Revoir le cours */
.code-unlock-hint {
  font-size: 0.9rem;
  color: #6b7280;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  width: 100%;
  text-align: center;
}

[data-theme="dark"] .code-unlock-hint {
  color: #d1d5db;
  border-top-color: rgba(255, 255, 255, 0.15);
}

.code-unlock-hint a {
  color: #7c3aed;
  text-decoration: none;
  font-weight: 600;
  padding: 0.6rem 1.25rem;
  background: rgba(168, 85, 247, 0.1);
  border: 1px solid rgba(168, 85, 247, 0.25);
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
  cursor: pointer;
}

[data-theme="dark"] .code-unlock-hint a {
  color: #e9d5ff;
  background: rgba(168, 85, 247, 0.2);
  border-color: rgba(168, 85, 247, 0.3);
}

.code-unlock-hint a:hover {
  background: rgba(168, 85, 247, 0.2);
  border-color: rgba(168, 85, 247, 0.4);
  color: #6d28d9;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(168, 85, 247, 0.2);
}

[data-theme="dark"] .code-unlock-hint a:hover {
  background: rgba(168, 85, 247, 0.35);
  border-color: rgba(168, 85, 247, 0.5);
  color: #fff;
  box-shadow: 0 4px 12px rgba(168, 85, 247, 0.25);
}

.code-unlock-hint a::before {
  content: "📖";
  font-size: 1rem;
}

/* Pseudo-code container (pour les niveaux avancés) */
.pseudo-code-card {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  border: 1px dashed #4f46e5;
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1rem 0;
}

.pseudo-code-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  color: #818cf8;
  font-weight: 600;
}

.pseudo-code-header i {
  width: 20px;
  height: 20px;
}

.pseudo-code-content {
  font-family: "Fira Code", monospace;
  font-size: 0.9rem;
  color: #e0e7ff;
  line-height: 1.8;
}

.pseudo-code-content .step {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.pseudo-code-content .step-num {
  color: #6366f1;
  font-weight: 700;
  min-width: 20px;
}

.pseudo-code-content .hint {
  color: #6b7280;
  font-style: italic;
  font-size: 0.85rem;
  margin-left: 28px;
}

/* Badge difficulté projet */
.project-difficulty {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-left: 0.5rem;
}

.project-difficulty.guided {
  background: rgba(34, 197, 94, 0.15);
  color: #22c55e;
}

.project-difficulty.semi-guided {
  background: rgba(234, 179, 8, 0.15);
  color: #eab308;
}

.project-difficulty.autonomous {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
}

/* Responsive */
@media (max-width: 640px) {
  .code-unlock-overlay {
    padding: 1.5rem 1rem;
  }

  .code-unlock-icon {
    font-size: 2.5rem;
  }

  .code-unlock-title {
    font-size: 1.1rem;
  }

  .btn-unlock-code {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
  }
}

/* ============================================
   MODALES DE DÉBLOCAGE DE CODE (avec support thème)
   ============================================ */

/* Conteneur modal */
.unlock-confirm-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.unlock-confirm-modal.active {
  opacity: 1;
  pointer-events: auto;
}

/* Backdrop */
.unlock-confirm-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}

/* Contenu de la modal */
.unlock-confirm-content {
  position: relative;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 20px;
  padding: 2rem;
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  transform: scale(0.9) translateY(20px);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Thème sombre pour la modal */
[data-theme="dark"] .unlock-confirm-content {
  background: #1f2937;
  border-color: #374151;
}

/* Titre */
.unlock-confirm-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #111827;
  margin: 0 0 1rem 0;
}

[data-theme="dark"] .unlock-confirm-content h3 {
  color: #f9fafb;
}

/* Paragraphes */
.unlock-confirm-content p {
  color: #6b7280;
  margin: 0.5rem 0;
  line-height: 1.6;
}

[data-theme="dark"] .unlock-confirm-content p {
  color: #9ca3af;
}

.unlock-confirm-modal.active .unlock-confirm-content {
  transform: scale(1) translateY(0);
}

/* Icône de la modal */
.unlock-confirm-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  animation: bounceIn 0.5s ease;
}

@keyframes bounceIn {
  0% {
    transform: scale(0);
  }
  50% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
  }
}

.unlock-confirm-content p strong {
  color: #a855f7;
  font-weight: 700;
}

/* Actions */
.unlock-confirm-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.unlock-confirm-actions .btn-cancel {
  flex: 1;
  padding: 0.75rem 1rem;
  background: #f3f4f6;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  color: #6b7280;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

[data-theme="dark"] .unlock-confirm-actions .btn-cancel {
  background: #374151;
  border-color: #4b5563;
  color: #9ca3af;
}

.unlock-confirm-actions .btn-cancel:hover {
  background: #e5e7eb;
  color: #374151;
}

[data-theme="dark"] .unlock-confirm-actions .btn-cancel:hover {
  background: #4b5563;
  color: #f3f4f6;
}

.unlock-confirm-actions .btn-confirm {
  flex: 1.5;
  padding: 0.75rem 1rem;
  background: linear-gradient(135deg, #a855f7 0%, #7c3aed 100%);
  border: none;
  border-radius: 10px;
  color: white;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
  box-shadow: 0 4px 15px rgba(168, 85, 247, 0.3);
}

.unlock-confirm-actions .btn-confirm:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(168, 85, 247, 0.4);
}

.unlock-confirm-actions .btn-confirm i {
  width: 16px;
  height: 16px;
}

/* Toast notifications */
.unlock-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  padding: 1rem 1.5rem;
  border-radius: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 10000;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.unlock-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.unlock-toast.success {
  background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
  color: white;
}

.unlock-toast.error {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  color: white;
}

.unlock-toast i {
  width: 20px;
  height: 20px;
}

/* ===== Responsive modales ===== */
@media (max-width: 480px) {
  .unlock-confirm-content {
    padding: 1.5rem;
    margin: 1rem;
  }

  .unlock-confirm-icon {
    font-size: 2.5rem;
  }

  .unlock-confirm-content h3 {
    font-size: 1.25rem;
  }

  .unlock-confirm-actions {
    flex-direction: column;
  }

  .unlock-confirm-actions .btn-cancel,
  .unlock-confirm-actions .btn-confirm {
    flex: none;
    width: 100%;
  }

  .unlock-toast {
    width: calc(100% - 2rem);
    left: 1rem;
    right: 1rem;
    transform: translateX(0) translateY(100px);
  }

  .unlock-toast.show {
    transform: translateX(0) translateY(0);
  }
}