/* ═══════════════════════════════════════════════════════════════
   AIDE EN TOUT — Feuille de styles complète
   Structure :
   1. Variables & Reset
   2. Splash screen
   3. Layout global
   4. Auth (connexion / inscription)
   5. Header
   6. Home (grille matières)
   7. Cartes matières
   8. Vue matière (chapitres)
   9. Vue leçon
   10. Moteur d'exercices
   11. Types d'exercices (QCM, fill, match, order)
   12. Feedback exercice
   13. Écran résultats
   14. Vue profil
   15. Modal
   16. Toast
   17. Composants réutilisables (boutons, badges…)
   18. Animations
   19. Responsive
═══════════════════════════════════════════════════════════════ */

/* ─────────────────────────────────────────────
   1. VARIABLES & RESET
───────────────────────────────────────────── */
:root {
  /* Couleurs principales */
  --clr-primary:      #4F46E5;
  --clr-primary-dark: #3730A3;
  --clr-primary-light:#EEF2FF;
  --clr-success:      #16A34A;
  --clr-success-bg:   #DCFCE7;
  --clr-error:        #DC2626;
  --clr-error-bg:     #FEE2E2;
  --clr-warning:      #D97706;
  --clr-warning-bg:   #FEF3C7;
  --clr-xp:           #F59E0B;

  /* Neutres */
  --clr-bg:           #F8F7FF;
  --clr-surface:      #FFFFFF;
  --clr-border:       #E5E7EB;
  --clr-text:         #111827;
  --clr-text-muted:   #6B7280;
  --clr-text-light:   #9CA3AF;

  /* Typographie */
  --font-base: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-md:   1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;

  /* Rayons */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Ombres */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.13);
  --shadow-card:0 2px 8px rgba(79,70,229,.10);

  /* Transitions */
  --transition: 200ms ease;
  --transition-slow: 380ms cubic-bezier(.4,0,.2,1);

  /* Matière active (modifiée par JS) */
  --subject-color: #4F46E5;
  --subject-gradient: linear-gradient(135deg, #4F46E5, #7C3AED);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-base);
  background: var(--clr-bg);
  color: var(--clr-text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea { font-family: inherit; }
ul { list-style: none; }
a { color: inherit; text-decoration: none; }

/* ─────────────────────────────────────────────
   2. SPLASH SCREEN
───────────────────────────────────────────── */
#splash-screen {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: splashFadeOut .5s ease 1.6s forwards;
}

.splash-inner {
  text-align: center;
  color: #fff;
  animation: splashIn .6s ease;
}

.splash-logo  { font-size: 4rem; margin-bottom: .5rem; }
.splash-title { font-size: var(--text-3xl); font-weight: 800; letter-spacing: -1px; }
.splash-sub   { font-size: var(--text-md); opacity: .75; margin-top: .25rem; }

.splash-loader {
  margin: 1.5rem auto 0;
  width: 160px;
  height: 6px;
  background: rgba(255,255,255,.25);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.loader-bar {
  height: 100%;
  width: 0;
  background: #fff;
  border-radius: var(--radius-full);
  animation: loaderFill 1.4s ease forwards;
}

/* ─────────────────────────────────────────────
   3. LAYOUT GLOBAL
───────────────────────────────────────────── */
#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.view {
  flex: 1;
  display: flex;
  flex-direction: column;
  animation: viewIn .3s ease;
}

.page-container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ─────────────────────────────────────────────
   4. AUTH
───────────────────────────────────────────── */
.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #EEF2FF 0%, #F8F7FF 60%, #FDF4FF 100%);
  padding: 1.5rem;
}

.auth-box {
  background: var(--clr-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 420px;
  animation: slideUp .4s ease;
}

.auth-logo {
  font-size: 2.8rem;
  text-align: center;
  margin-bottom: .25rem;
}

.auth-logo-title {
  text-align: center;
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--clr-primary);
  margin-bottom: 1.75rem;
}

.auth-tabs {
  display: flex;
  background: var(--clr-bg);
  border-radius: var(--radius-md);
  padding: 4px;
  margin-bottom: 1.75rem;
}

.tab-btn {
  flex: 1;
  padding: .55rem .75rem;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--clr-text-muted);
  transition: var(--transition);
}

.tab-btn.active {
  background: var(--clr-surface);
  color: var(--clr-primary);
  box-shadow: var(--shadow-sm);
}

.auth-form { display: flex; flex-direction: column; gap: 1rem; }
.auth-form.hidden { display: none; }

.field-group { display: flex; flex-direction: column; gap: .4rem; }

.field-group label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--clr-text);
}

.field-group input {
  padding: .75rem 1rem;
  border: 2px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-size: var(--text-md);
  color: var(--clr-text);
  background: var(--clr-bg);
  transition: border-color var(--transition);
  outline: none;
}

.field-group input:focus {
  border-color: var(--clr-primary);
  background: var(--clr-surface);
}

.form-errors { display: flex; flex-direction: column; gap: .3rem; }
.form-errors .error {
  font-size: var(--text-sm);
  color: var(--clr-error);
  background: var(--clr-error-bg);
  padding: .5rem .75rem;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--clr-error);
}

/* ─────────────────────────────────────────────
   5. HEADER
───────────────────────────────────────────── */
.app-header {
  background: var(--clr-surface);
  border-bottom: 2px solid var(--clr-border);
  padding: 0 1.25rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-logo {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--clr-primary);
  display: flex;
  align-items: center;
  gap: .5rem;
  cursor: pointer;
}

.header-nav { display: flex; align-items: center; gap: .75rem; }

.btn-nav {
  padding: .45rem .9rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--clr-text-muted);
  transition: var(--transition);
}
.btn-nav:hover { background: var(--clr-bg); color: var(--clr-text); }

.btn-logout {
  color: var(--clr-error);
  border: 2px solid var(--clr-border);
}
.btn-logout:hover { background: var(--clr-error-bg); border-color: var(--clr-error); }

.header-xp {
  display: flex;
  align-items: center;
  gap: .3rem;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--clr-xp);
  background: #FFFBEB;
  padding: .35rem .75rem;
  border-radius: var(--radius-full);
  border: 2px solid #FDE68A;
}

/* ─────────────────────────────────────────────
   6. HOME — Welcome + grille matières
───────────────────────────────────────────── */
.home-main { padding: 2rem 1.25rem 4rem; max-width: 960px; margin: 0 auto; width: 100%; }

.welcome-section { margin-bottom: 2.5rem; }

.welcome-section h1 {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--clr-text);
  letter-spacing: -1px;
}

.welcome-section p {
  font-size: var(--text-lg);
  color: var(--clr-text-muted);
  margin-top: .35rem;
}

.streak-bar {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-top: 1rem;
  padding: .75rem 1rem;
  background: #FFFBEB;
  border-radius: var(--radius-md);
  border: 2px solid #FDE68A;
  width: fit-content;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--clr-warning);
}

.subjects-section-title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--clr-text);
}

.subjects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

/* ─────────────────────────────────────────────
   7. CARTES MATIÈRES
───────────────────────────────────────────── */
.subject-card {
  background: var(--clr-surface);
  border-radius: var(--radius-lg);
  border: 2px solid var(--clr-border);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow-card);
}

.subject-card.available {
  cursor: pointer;
}

.subject-card.available:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--subject-color, var(--clr-primary));
}

.subject-card.locked {
  opacity: .65;
  filter: grayscale(.3);
}

.card-header {
  height: 110px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.card-emoji { font-size: 3rem; line-height: 1; }

.badge-soon {
  position: absolute;
  top: .75rem;
  right: .75rem;
  background: rgba(0,0,0,.35);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: 700;
  padding: .2rem .6rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: .5px;
}
.badge-soon.hidden { display: none; }

.card-body { padding: 1.1rem 1.1rem 1.25rem; }

.card-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: .3rem;
}

.card-desc {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  margin-bottom: 1rem;
  line-height: 1.45;
}

.coming-soon-text {
  font-size: var(--text-sm);
  color: var(--clr-text-light);
  font-style: italic;
  margin-top: .5rem;
}

.progress-row {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: .75rem;
}

.progress-bar {
  flex: 1;
  height: 8px;
  background: var(--clr-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width .6s ease;
  background: var(--clr-primary);
}

.pct-label {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--clr-text-muted);
  min-width: 28px;
  text-align: right;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.xp-badge {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--clr-xp);
  background: #FFFBEB;
  padding: .25rem .6rem;
  border-radius: var(--radius-full);
  border: 1px solid #FDE68A;
}

.chapters-count {
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
}

/* ─────────────────────────────────────────────
   8. VUE MATIÈRE — Chapitres
───────────────────────────────────────────── */
.subject-view { flex: 1; }

.subject-hero {
  padding: 2rem 1.25rem 1.5rem;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.subject-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: inherit;
  z-index: 0;
}

.subject-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.hero-back-btn {
  background: rgba(255,255,255,.2);
  color: #fff;
  border-radius: var(--radius-full);
  padding: .5rem .9rem;
  font-size: var(--text-sm);
  font-weight: 600;
  transition: var(--transition);
  border: 2px solid rgba(255,255,255,.3);
  white-space: nowrap;
  margin-top: .25rem;
}
.hero-back-btn:hover { background: rgba(255,255,255,.35); }

.hero-content { flex: 1; }

.hero-emoji { font-size: 2.75rem; margin-bottom: .4rem; }

.hero-title {
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -.5px;
}

.hero-desc {
  font-size: var(--text-md);
  opacity: .85;
  margin-top: .3rem;
}

.hero-stats {
  display: flex;
  gap: 1.25rem;
  margin-top: 1rem;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-stat-val {
  font-size: var(--text-xl);
  font-weight: 800;
}

.hero-stat-label {
  font-size: var(--text-xs);
  opacity: .75;
  text-transform: uppercase;
  letter-spacing: .5px;
}

.chapters-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 4rem;
  display: flex;
  flex-direction: column;
  gap: .9rem;
}

.chapters-section-title {
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--clr-text-muted);
  margin-bottom: .25rem;
}

/* ─────────────────────────────────────────────
   CARTES CHAPITRES
───────────────────────────────────────────── */
.chapter-card {
  background: var(--clr-surface);
  border: 2px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.chapter-card:hover:not(.chapter-locked) {
  transform: translateX(4px);
  border-color: var(--subject-color, var(--clr-primary));
  box-shadow: var(--shadow-md);
}

.chapter-card.chapter-locked {
  cursor: not-allowed;
  opacity: .6;
  filter: grayscale(.4);
}

.chapter-card.chapter-completed {
  border-color: #86EFAC;
  background: linear-gradient(135deg, #fff, #F0FDF4);
}

.chapter-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  position: relative;
  flex-shrink: 0;
  background: var(--clr-bg);
  border: 2px solid var(--clr-border);
}

.chapter-lock-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,.8);
  border-radius: calc(var(--radius-md) - 2px);
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.chapter-card.chapter-locked .chapter-lock-overlay { display: flex; }

.chapter-info { flex: 1; min-width: 0; }

.chapter-title {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--clr-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chapter-desc {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  margin-top: .15rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chapter-meta {
  display: flex;
  gap: .75rem;
  margin-top: .4rem;
  align-items: center;
}

.lesson-count, .chapter-xp {
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
  font-weight: 600;
}

.chapter-progress-bar {
  margin-top: .5rem;
  height: 5px;
  background: var(--clr-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.chapter-progress-fill {
  height: 100%;
  background: var(--subject-color, var(--clr-primary));
  border-radius: var(--radius-full);
  transition: width .5s ease;
}

.chapter-arrow {
  font-size: 1.5rem;
  color: var(--clr-text-light);
  flex-shrink: 0;
  transition: transform var(--transition);
}
.chapter-card:hover:not(.chapter-locked) .chapter-arrow { transform: translateX(4px); }

/* ─────────────────────────────────────────────
   9. VUE LEÇON
───────────────────────────────────────────── */
.lesson-view { flex: 1; }

.lesson-header {
  padding: 1.25rem 1.25rem 0;
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-back {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--clr-text-muted);
  padding: .45rem .8rem;
  border-radius: var(--radius-full);
  border: 2px solid var(--clr-border);
  transition: var(--transition);
}
.btn-back:hover { border-color: var(--subject-color, var(--clr-primary)); color: var(--subject-color, var(--clr-primary)); }

.lesson-header-title {
  font-size: var(--text-lg);
  font-weight: 700;
  flex: 1;
}

.lesson-content {
  max-width: 760px;
  margin: 1.5rem auto;
  padding: 0 1.25rem 4rem;
}

/* Leçon : blocs de contenu */
.lesson-section {
  background: var(--clr-surface);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 1.25rem;
  border: 2px solid var(--clr-border);
  box-shadow: var(--shadow-sm);
}

.lesson-section h2 {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--clr-primary);
  margin-bottom: 1rem;
  padding-bottom: .75rem;
  border-bottom: 2px solid var(--clr-primary-light);
}

.lesson-section h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin: 1.25rem 0 .5rem;
  color: var(--clr-text);
}

.lesson-section p {
  color: var(--clr-text);
  line-height: 1.75;
  margin-bottom: .75rem;
}

.lesson-section ul {
  list-style: disc;
  padding-left: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

.lesson-section ul li { color: var(--clr-text); line-height: 1.6; }

/* Encadré "Définition" */
.def-box {
  background: var(--clr-primary-light);
  border-left: 4px solid var(--clr-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
}
.def-box p { color: var(--clr-primary-dark); font-weight: 500; margin: 0; }

/* Encadré "Exemple" */
.example-box {
  background: #F0FDF4;
  border-left: 4px solid var(--clr-success);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
}
.example-box .example-label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--clr-success);
  margin-bottom: .35rem;
}
.example-box p { color: #15803D; margin: 0; font-style: italic; }

/* Encadré "Astuce" */
.tip-box {
  background: var(--clr-warning-bg);
  border-left: 4px solid var(--clr-warning);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
  display: flex;
  gap: .75rem;
}
.tip-box .tip-icon { font-size: 1.25rem; flex-shrink: 0; }
.tip-box p { color: #92400E; margin: 0; }

/* ── Bloc de code dans les leçons ───────── */
.code-block {
  background: #0f172a;
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin: .75rem 0;
  overflow-x: auto;
  border: 1px solid #1e293b;
}
.code-block pre {
  margin: 0;
  white-space: pre;
}
.code-block code {
  font-family: "Fira Code", "Cascadia Code", "Consolas", monospace;
  font-size: .82rem;
  line-height: 1.65;
  color: #e2e8f0;
}
/* Inline code dans le texte */
.lesson-section code:not(.code-block code) {
  background: #e0e7ff;
  color: #3730a3;
  padding: .15em .4em;
  border-radius: 4px;
  font-size: .85em;
  font-family: "Fira Code", "Consolas", monospace;
}
.example-box .code-block {
  margin-top: .5rem;
  margin-bottom: 0;
}

/* Matière Codage — couleur accent */
[data-subject="coding"] .lesson-section h2 { color: #0EA5E9; }
[data-subject="coding"] .lesson-section h2 { border-color: #e0f2fe; }

/* Liste leçons dans un chapitre */
.lessons-list {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  margin-top: 1.75rem;
}

.lesson-item {
  background: var(--clr-surface);
  border: 2px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: .9rem 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  transition: var(--transition);
}

.lesson-item:hover { border-color: var(--subject-color, var(--clr-primary)); }
.lesson-item.completed { border-color: #86EFAC; background: #F0FDF4; }

.lesson-status { width: 28px; height: 28px; flex-shrink: 0; }

.lesson-check {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
}

.lesson-item.completed .lesson-check {
  background: var(--clr-success);
  border-color: var(--clr-success);
  color: #fff;
}

.lesson-info { flex: 1; display: flex; align-items: center; gap: .75rem; min-width: 0; }

.lesson-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--clr-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lesson-type-badge {
  font-size: var(--text-xs);
  font-weight: 600;
  padding: .15rem .55rem;
  border-radius: var(--radius-full);
  background: var(--clr-primary-light);
  color: var(--clr-primary);
  white-space: nowrap;
  flex-shrink: 0;
}

.lesson-score {
  display: flex;
  align-items: center;
  gap: .3rem;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--clr-xp);
}
.lesson-score.hidden { display: none; }

.btn-lesson-go {
  padding: .45rem .9rem;
  background: var(--subject-color, var(--clr-primary));
  color: #fff;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 700;
  transition: var(--transition);
  flex-shrink: 0;
}
.btn-lesson-go:hover { opacity: .85; transform: scale(1.03); }

/* ─────────────────────────────────────────────
   10. MOTEUR D'EXERCICES — Wrapper commun
───────────────────────────────────────────── */
.exercise-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--clr-bg);
}

.exercise-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2rem;
  gap: 1.5rem;
}

.exercise-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.exercise-progress { flex: 1; display: flex; align-items: center; gap: .75rem; }

.ex-progress-bar {
  flex: 1;
  height: 12px;
  background: var(--clr-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.ex-progress-fill {
  height: 100%;
  background: var(--subject-color, var(--clr-primary));
  border-radius: var(--radius-full);
  transition: width .4s ease;
}

.ex-counter {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--clr-text-muted);
  white-space: nowrap;
}

.exercise-lives { display: flex; gap: .25rem; font-size: 1.3rem; }
.heart.lost { filter: grayscale(1); opacity: .35; }

.exercise-body {
  background: var(--clr-surface);
  border-radius: var(--radius-xl);
  padding: 2rem;
  border: 2px solid var(--clr-border);
  box-shadow: var(--shadow-md);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.exercise-instruction {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--clr-text-muted);
}

.exercise-question {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1.5;
}

.exercise-actions {
  display: flex;
  gap: .75rem;
  justify-content: flex-end;
}

/* ─────────────────────────────────────────────
   11. TYPES D'EXERCICES
───────────────────────────────────────────── */

/* QCM */
.qcm-options {
  display: flex;
  flex-direction: column;
  gap: .65rem;
}

.qcm-option {
  padding: .9rem 1.1rem;
  border: 2px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-size: var(--text-md);
  font-weight: 500;
  color: var(--clr-text);
  background: var(--clr-bg);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
  text-align: left;
  display: flex;
  align-items: center;
  gap: .75rem;
}

.qcm-option:hover:not(.disabled) {
  border-color: var(--subject-color, var(--clr-primary));
  background: var(--clr-primary-light);
  transform: translateX(3px);
}

.qcm-option.selected {
  border-color: var(--subject-color, var(--clr-primary));
  background: var(--clr-primary-light);
  font-weight: 700;
}

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

.qcm-option.wrong {
  border-color: var(--clr-error);
  background: var(--clr-error-bg);
  color: var(--clr-error);
}

.qcm-option.disabled { cursor: not-allowed; }

.option-letter {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: 700;
  flex-shrink: 0;
  transition: var(--transition);
}

.qcm-option.selected .option-letter {
  background: var(--subject-color, var(--clr-primary));
  color: #fff;
}

.qcm-option.correct .option-letter { background: var(--clr-success); color: #fff; }
.qcm-option.wrong   .option-letter { background: var(--clr-error);   color: #fff; }

/* Fill (texte à trous) */
.fill-sentence {
  font-size: var(--text-xl);
  line-height: 2;
  color: var(--clr-text);
  font-weight: 500;
}

.fill-input {
  display: inline-block;
  border: none;
  border-bottom: 3px solid var(--subject-color, var(--clr-primary));
  background: var(--clr-primary-light);
  padding: .1rem .5rem;
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--clr-primary);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  min-width: 100px;
  outline: none;
  transition: var(--transition);
  text-align: center;
}

.fill-input:focus {
  background: #E0E7FF;
  border-color: var(--clr-primary-dark);
}

.fill-input.correct {
  border-color: var(--clr-success);
  background: var(--clr-success-bg);
  color: var(--clr-success);
}

.fill-input.wrong {
  border-color: var(--clr-error);
  background: var(--clr-error-bg);
  color: var(--clr-error);
}

/* Match (associations) */
.match-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.match-col { display: flex; flex-direction: column; gap: .5rem; }

.match-item {
  padding: .75rem 1rem;
  border: 2px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  background: var(--clr-bg);
  user-select: none;
}

.match-item:hover:not(.matched):not(.disabled) {
  border-color: var(--subject-color, var(--clr-primary));
  background: var(--clr-primary-light);
}

.match-item.selected {
  border-color: var(--subject-color, var(--clr-primary));
  background: var(--clr-primary-light);
  color: var(--clr-primary);
}

.match-item.matched {
  border-color: var(--clr-success);
  background: var(--clr-success-bg);
  color: var(--clr-success);
  cursor: default;
}

.match-item.wrong-match {
  border-color: var(--clr-error);
  background: var(--clr-error-bg);
  color: var(--clr-error);
  animation: shake .3s ease;
}

/* Order (remise en ordre) */
.order-zone-answer {
  min-height: 60px;
  border: 2px dashed var(--subject-color, var(--clr-primary));
  border-radius: var(--radius-md);
  padding: .65rem;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  background: var(--clr-primary-light);
  align-items: center;
}

.order-zone-bank {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  padding: .65rem 0;
}

.order-token {
  padding: .5rem .9rem;
  border: 2px solid var(--clr-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  background: var(--clr-surface);
  transition: var(--transition);
  user-select: none;
}

.order-token:hover { border-color: var(--subject-color, var(--clr-primary)); }

.order-token.in-answer {
  border-color: var(--subject-color, var(--clr-primary));
  background: var(--clr-primary-light);
  color: var(--clr-primary);
}

.order-token.correct { border-color: var(--clr-success); background: var(--clr-success-bg); color: var(--clr-success); }
.order-token.wrong   { border-color: var(--clr-error);   background: var(--clr-error-bg);   color: var(--clr-error);   }

/* ─────────────────────────────────────────────
   12. FEEDBACK EXERCICE
───────────────────────────────────────────── */
.exercise-feedback {
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: .3rem;
  animation: slideUp .25s ease;
}

.exercise-feedback.hidden { display: none; }

.exercise-feedback.success {
  background: var(--clr-success-bg);
  border-left: 4px solid var(--clr-success);
}

.exercise-feedback.error {
  background: var(--clr-error-bg);
  border-left: 4px solid var(--clr-error);
}

.feedback-icon { font-size: 1.4rem; }

.feedback-text {
  font-size: var(--text-md);
  font-weight: 700;
}

.exercise-feedback.success .feedback-text { color: var(--clr-success); }
.exercise-feedback.error   .feedback-text { color: var(--clr-error);   }

.feedback-explanation {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: 1.5;
}

/* ─────────────────────────────────────────────
   13. RÉSULTATS
───────────────────────────────────────────── */
.results-view {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.25rem;
  background: linear-gradient(160deg, var(--clr-bg) 0%, #F5F3FF 100%);
}

.results-wrapper {
  max-width: 480px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  animation: bounceIn .5s ease;
}

.results-hero { text-align: center; }

.results-trophy { font-size: 5rem; margin-bottom: .5rem; }

.results-title {
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--clr-text);
}

.results-subtitle {
  font-size: var(--text-lg);
  color: var(--clr-text-muted);
  margin-top: .35rem;
}

.results-stats {
  display: flex;
  gap: 1rem;
  width: 100%;
}

.stat-card {
  flex: 1;
  background: var(--clr-surface);
  border: 2px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem .75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .25rem;
  box-shadow: var(--shadow-sm);
}

.stat-icon { font-size: 1.5rem; }

.stat-value {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--clr-text);
}

.stat-label {
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
  text-align: center;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
}

.results-stars {
  display: flex;
  gap: .5rem;
  font-size: 2.5rem;
}

.result-star { transition: transform .3s ease; }
.result-star.earned { animation: starPop .4s ease; }
.result-star.unearned { filter: grayscale(1); opacity: .3; }

.results-actions {
  display: flex;
  gap: .75rem;
  width: 100%;
}

.results-actions .btn-primary,
.results-actions .btn-secondary {
  flex: 1;
  justify-content: center;
}

/* ─────────────────────────────────────────────
   14. VUE PROFIL
───────────────────────────────────────────── */
.profile-view { flex: 1; padding-bottom: 3rem; }

.profile-header {
  background: linear-gradient(135deg, var(--clr-primary), #7C3AED);
  color: #fff;
  padding: 2.5rem 1.25rem 2rem;
}

.profile-header-inner {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.profile-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(255,255,255,.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  flex-shrink: 0;
  border: 3px solid rgba(255,255,255,.5);
}

.profile-name { font-size: var(--text-2xl); font-weight: 800; }
.profile-email { font-size: var(--text-sm); opacity: .75; margin-top: .15rem; }
.profile-since { font-size: var(--text-xs); opacity: .6; margin-top: .1rem; }

.profile-body {
  max-width: 760px;
  margin: 1.75rem auto;
  padding: 0 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.profile-section-title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: .75rem;
  color: var(--clr-text);
}

.profile-subject-card {
  background: var(--clr-surface);
  border: 2px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: .6rem;
  box-shadow: var(--shadow-sm);
}

.profile-subject-emoji { font-size: 2rem; flex-shrink: 0; }

.profile-subject-info { flex: 1; }

.profile-subject-name {
  font-size: var(--text-md);
  font-weight: 700;
  margin-bottom: .35rem;
}

.profile-subject-xp {
  font-size: var(--text-sm);
  color: var(--clr-xp);
  font-weight: 700;
}

/* ─────────────────────────────────────────────
   15. MODAL
───────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1.25rem;
  backdrop-filter: blur(3px);
  animation: fadeIn .2s ease;
}

.modal-overlay.hidden { display: none; }

.modal-box {
  background: var(--clr-surface);
  border-radius: var(--radius-xl);
  padding: 2rem;
  max-width: 480px;
  width: 100%;
  position: relative;
  box-shadow: var(--shadow-lg);
  animation: slideUp .3s ease;
}

@media (max-width: 640px) {
  .modal-overlay {
    align-items: flex-end;
    padding: 0;
  }
  .modal-box {
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    max-width: 100%;
    padding: 1.5rem 1.25rem calc(1.5rem + env(safe-area-inset-bottom));
    max-height: 92dvh;
    overflow-y: auto;
    animation: slideUp .3s ease;
  }
  .modal-close {
    top: .75rem;
    right: .75rem;
    width: 36px;
    height: 36px;
  }
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--clr-bg);
  color: var(--clr-text-muted);
  font-size: .9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.modal-close:hover { background: var(--clr-border); color: var(--clr-text); }

/* ─────────────────────────────────────────────
   16. TOAST
───────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  pointer-events: none;
}
@media (max-width: 640px) {
  #toast-container {
    bottom: calc(76px + env(safe-area-inset-bottom));
    width: calc(100% - 2rem);
    left: 1rem;
    transform: none;
    align-items: stretch;
  }
}

.toast {
  padding: .75rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 700;
  color: #fff;
  box-shadow: var(--shadow-lg);
  animation: toastIn .3s ease;
  pointer-events: auto;
  white-space: nowrap;
}

.toast.success { background: var(--clr-success); }
.toast.error   { background: var(--clr-error); }
.toast.info    { background: var(--clr-primary); }
.toast.warning { background: var(--clr-warning); }
.toast.fadeout { animation: toastOut .3s ease forwards; }

/* ─────────────────────────────────────────────
   17. COMPOSANTS RÉUTILISABLES
───────────────────────────────────────────── */

/* Bouton primaire */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.5rem;
  background: var(--subject-color, var(--clr-primary));
  color: #fff;
  border-radius: var(--radius-full);
  font-size: var(--text-md);
  font-weight: 700;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
  box-shadow: 0 4px 12px rgba(79,70,229,.3);
}
.btn-primary:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(79,70,229,.35); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: .45; cursor: not-allowed; transform: none; box-shadow: none; }

/* Bouton Google */
.btn-google {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; padding: 11px 16px; border-radius: 10px;
  background: var(--bg-card); border: 1.5px solid var(--border);
  color: var(--text-primary); font-size: .95rem; font-weight: 600;
  cursor: pointer; transition: background .2s, box-shadow .2s;
}
.btn-google:hover { background: var(--bg-hover); box-shadow: 0 2px 10px rgba(0,0,0,.15); }

/* Séparateur auth */
.auth-divider {
  display: flex; align-items: center; gap: 10px;
  margin: 14px 0; color: var(--text-muted); font-size: .82rem;
}
.auth-divider::before, .auth-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}

/* Bouton secondaire */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.5rem;
  background: var(--clr-surface);
  color: var(--clr-text);
  border-radius: var(--radius-full);
  font-size: var(--text-md);
  font-weight: 700;
  border: 2px solid var(--clr-border);
  transition: var(--transition);
}
.btn-secondary:hover { border-color: var(--subject-color, var(--clr-primary)); color: var(--subject-color, var(--clr-primary)); }

/* Bouton Valider */
.btn-validate {
  padding: .75rem 1.75rem;
  background: var(--subject-color, var(--clr-primary));
  color: #fff;
  border-radius: var(--radius-full);
  font-size: var(--text-md);
  font-weight: 700;
  transition: var(--transition);
  box-shadow: 0 4px 12px rgba(79,70,229,.25);
}
.btn-validate:hover:not(:disabled) { transform: translateY(-2px); }
.btn-validate:disabled { background: var(--clr-border); color: var(--clr-text-muted); cursor: not-allowed; box-shadow: none; transform: none; }

/* Bouton Suivant */
.btn-next {
  padding: .75rem 1.75rem;
  background: var(--clr-success);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: var(--text-md);
  font-weight: 700;
  transition: var(--transition);
  box-shadow: 0 4px 12px rgba(22,163,74,.25);
}
.btn-next:hover { transform: translateY(-2px); }
.btn-next.hidden { display: none; }

/* Badge générique */
.badge {
  display: inline-flex;
  align-items: center;
  padding: .2rem .65rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
}

.badge-new {
  background: #FEF9C3;
  color: #CA8A04;
  border: 1px solid #FDE047;
}

.badge-completed {
  background: var(--clr-success-bg);
  color: var(--clr-success);
  border: 1px solid #86EFAC;
}

/* Divider */
.divider {
  height: 1px;
  background: var(--clr-border);
  margin: 1.5rem 0;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 3rem 1.25rem;
  color: var(--clr-text-muted);
}
.empty-state .empty-icon { font-size: 3rem; margin-bottom: .75rem; }
.empty-state p { font-size: var(--text-md); }

/* ─────────────────────────────────────────────
   18. ANIMATIONS
───────────────────────────────────────────── */
@keyframes splashIn {
  from { opacity: 0; transform: scale(.85); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes splashFadeOut {
  to { opacity: 0; pointer-events: none; visibility: hidden; }
}

@keyframes loaderFill {
  0%   { width: 0; }
  60%  { width: 80%; }
  100% { width: 100%; }
}

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

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes viewIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes bounceIn {
  0%   { opacity: 0; transform: scale(.7); }
  60%  { transform: scale(1.05); }
  80%  { transform: scale(.97); }
  100% { opacity: 1; transform: scale(1); }
}

@keyframes starPop {
  0%   { transform: scale(0) rotate(-20deg); }
  60%  { transform: scale(1.3) rotate(5deg); }
  100% { transform: scale(1) rotate(0); }
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(20px) scale(.9); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toastOut {
  to { opacity: 0; transform: translateY(10px) scale(.9); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-6px); }
  40%       { transform: translateX(6px); }
  60%       { transform: translateX(-4px); }
  80%       { transform: translateX(4px); }
}

@keyframes correctPulse {
  0%   { box-shadow: 0 0 0 0 rgba(22,163,74,.4); }
  70%  { box-shadow: 0 0 0 10px rgba(22,163,74,0); }
  100% { box-shadow: 0 0 0 0 rgba(22,163,74,0); }
}

/* ─────────────────────────────────────────────
   19. RESPONSIVE
───────────────────────────────────────────── */
@media (max-width: 640px) {

  /* ── Grille matières ── */
  .subjects-grid { grid-template-columns: 1fr 1fr; gap: .75rem; }
  .card-header   { height: 76px; }
  .card-emoji    { font-size: 2rem; }
  .card-title    { font-size: var(--text-sm); }
  .card-desc     { display: none; }

  /* ── Welcome ── */
  .welcome-section h1 { font-size: var(--text-xl); letter-spacing: -.5px; }
  .welcome-section p  { font-size: var(--text-sm); }
  .hero-stats { gap: .75rem; }
  .hero-title { font-size: var(--text-xl); }

  /* ── Auth ── */
  .auth-wrapper { padding: 0; align-items: flex-end; background: linear-gradient(160deg,#EEF2FF 0%,#F8F7FF 100%); min-height: 100dvh; }
  .auth-box {
    padding: 2rem 1.25rem calc(2rem + env(safe-area-inset-bottom));
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    box-shadow: 0 -8px 40px rgba(0,0,0,.12);
    max-width: 100%;
    animation: slideUp .35s ease;
  }

  /* ── Inputs : empêche le zoom iOS (min 16px) ── */
  input, select, textarea, .field-select {
    font-size: 16px !important;
  }

  /* ── Header ── */
  .app-header {
    padding: 0 .9rem;
    height: 56px;
    padding-top: env(safe-area-inset-top);
  }
  .header-logo span { display: none; }
  .btn-nav-icon, .header-score, .btn-profile { display: none !important; }

  /* ── Chapitres ── */
  .chapter-card { padding: .8rem .9rem; }
  .chapter-desc { display: none; }

  /* ── Exercices ── */
  .exercise-wrapper { padding: 1rem .75rem 1.5rem; }
  .exercise-body    { padding: 1rem; }
  .match-columns    { grid-template-columns: 1fr; }
  .results-stats    { flex-direction: column; }

  /* Boutons valider/continuer pleine largeur sur mobile */
  .exercise-actions {
    flex-direction: column;
    gap: .75rem;
  }
  .btn-validate, .btn-next {
    width: 100%;
    justify-content: center;
    min-height: 52px;
    font-size: var(--text-md);
  }

  /* ── Profile ── */
  .profile-header { padding: 1.25rem 1rem; }
  .profile-header-inner { flex-direction: column; align-items: center; text-align: center; }
  .profile-info { align-items: center; display: flex; flex-direction: column; }
  .profile-actions {
    flex-wrap: wrap;
    justify-content: center;
    gap: .5rem;
  }
  .profile-actions button { font-size: .82rem; padding: .5rem .9rem; }
  .stats-row { gap: .6rem; }
  .stat-card { padding: .75rem .5rem; }
  .stat-value { font-size: var(--text-xl); }

  /* ── Leçon ── */
  .lesson-header { padding: 1rem; }

  /* Padding bottom : toutes les vues scrollables, au-dessus de la bottom nav */
  .home-main,
  .social-body,
  .lesson-content,
  .profile-body,
  .chapters-container,
  .creations-main,
  .leaderboard-body,
  .notifs-list,
  .conv-list,
  .chat-messages { padding-bottom: calc(80px + env(safe-area-inset-bottom)); }

  /* ── Boutons généraux ── */
  .btn-primary, .btn-secondary {
    min-height: 48px;
    font-size: var(--text-sm);
  }
}

/* ─────────────────────────────────────────────
   28. BOTTOM NAV — Navigation mobile fixe
───────────────────────────────────────────── */

.bottom-nav {
  display: none; /* caché sur desktop */
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--clr-surface);
  border-top: 1.5px solid var(--clr-border);
  padding: 5px 0 max(6px, env(safe-area-inset-bottom));
  z-index: 100;
  box-shadow: 0 -2px 12px rgba(0,0,0,.06);
}

/* Affiche le bottom nav uniquement sur mobile */
@media (max-width: 640px) {
  .bottom-nav:not(.hidden) {
    display: flex;
    justify-content: space-around;
    align-items: center;
  }
}

.bn-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 2px;
  border-radius: var(--radius-sm);
  transition: background .15s;
  position: relative;
  flex: 1;
  min-width: 0;
  -webkit-tap-highlight-color: transparent;
}
.bn-item:active { background: var(--clr-primary-light); transform: scale(.93); }

.bn-icon  { font-size: 1.2rem; line-height: 1; }
.bn-label {
  font-size: 9px;
  color: var(--clr-text-muted);
  font-weight: 500;
  transition: color .15s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* Item actif */
.bn-item.bn-active .bn-icon  { filter: saturate(2); }
.bn-item.bn-active .bn-label { color: var(--clr-primary); font-weight: 700; }

/* Badge sur le bottom nav */
.bn-notif { position: relative; }
.bn-badge {
  position: absolute;
  top: 1px;
  right: calc(50% - 14px);
  background: var(--clr-error);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 3px;
  pointer-events: none;
}

@media (max-width: 400px) {
  .subjects-grid { grid-template-columns: 1fr; }
  .results-stars { font-size: 2rem; }
}

@media (min-width: 1024px) {
  .subjects-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ─────────────────────────────────────────────
   20. HEADER SOCIAL ÉTENDU
───────────────────────────────────────────── */

/* Score + niveau dans le header */
.header-score {
  display: flex;
  align-items: center;
  gap: .35rem;
  padding: .3rem .7rem;
  background: var(--clr-primary-light);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--clr-primary);
  cursor: pointer;
  user-select: none;
  transition: background .15s;
}
.header-score:hover { background: #dde4ff; }
.header-level { font-size: 1rem; }
.header-xp    { font-size: var(--text-sm); }

/* Boutons icône (🔔 💬 🏆) */
.btn-nav-icon {
  position: relative;
  background: none;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  padding: .3rem .4rem;
  border-radius: var(--radius-sm);
  transition: background .15s;
  line-height: 1;
}
.btn-nav-icon:hover { background: var(--clr-primary-light); }

/* Badge de notification sur les icônes */
.notif-btn   { position: relative; }
.notif-badge {
  position: absolute;
  top: -4px; right: -4px;
  background: var(--clr-error);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 3px;
  pointer-events: none;
}

/* Avatar */
.avatar {
  border-radius: 50%;
  object-fit: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.avatar-sm { width: 28px; height: 28px; font-size: .75rem; }
.avatar-md { width: 40px; height: 40px; font-size: 1rem; }
.avatar-lg { width: 72px; height: 72px; font-size: 1.75rem; }

/* Bouton profil dans le header */
.btn-profile {
  display: flex;
  align-items: center;
  gap: .4rem;
  padding: .2rem .5rem .2rem .3rem;
  border-radius: var(--radius-full);
  background: none;
  border: 1.5px solid var(--clr-border);
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.btn-profile:hover {
  border-color: var(--clr-primary);
  background: var(--clr-primary-light);
}

/* ─────────────────────────────────────────────
   21. HOME — BARRE DE NIVEAU + STATS
───────────────────────────────────────────── */
.welcome-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
}
.welcome-stats {
  display: flex;
  gap: .75rem;
}
.welcome-stat {
  text-align: center;
  cursor: pointer;
  padding: .5rem .75rem;
  border-radius: var(--radius-md);
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border);
  transition: border-color .15s;
  min-width: 60px;
}
.welcome-stat:hover { border-color: var(--clr-primary); }
.welcome-stat-val {
  display: block;
  font-size: var(--text-lg);
  font-weight: 800;
  color: var(--clr-primary);
}
.welcome-stat-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
  margin-top: .15rem;
}

/* Barre de progression de niveau */
.level-progress-row {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-top: .75rem;
}
.level-label {
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
  white-space: nowrap;
}
.level-bar {
  flex: 1;
  height: 8px;
  background: var(--clr-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.level-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--clr-primary), #7C3AED);
  border-radius: var(--radius-full);
  transition: width .6s ease;
}

/* ─────────────────────────────────────────────
   22. PROFIL ÉTENDU
───────────────────────────────────────────── */
.profile-info      { flex: 1; }
.profile-country   { font-size: var(--text-sm); color: var(--clr-text-muted); margin: .2rem 0; }
.profile-badge     { font-size: var(--text-sm); font-weight: 600; color: var(--clr-primary); margin: .3rem 0; }

.profile-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1rem;
}

.stats-row {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.stats-row .stat-card {
  flex: 1;
  min-width: 80px;
}

/* ─────────────────────────────────────────────
   23. FORMULAIRE — SELECT (champ pays)
───────────────────────────────────────────── */
.field-select {
  width: 100%;
  padding: .6rem .75rem;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-size: var(--text-md);
  background: var(--clr-surface);
  color: var(--clr-text);
  cursor: pointer;
  appearance: auto;
  transition: border-color .15s;
}
.field-select:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, .1);
}

/* ─────────────────────────────────────────────
   24. VUES SOCIALES (amis, recherche, profil public)
───────────────────────────────────────────── */

.social-view { display: flex; flex-direction: column; min-height: 100vh; }

.social-body {
  max-width: 680px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
}

.social-title {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--clr-text);
  margin-bottom: 1.25rem;
}

.social-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 1.25rem;
}

.social-section { margin-bottom: 2rem; }

.social-section-title {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: .75rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}

/* Badge nombre (ex: "Amis 3") */
.badge-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-primary);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: 700;
  min-width: 20px;
  height: 20px;
  border-radius: 10px;
  padding: 0 5px;
}

/* ── Carte utilisateur ── */
.user-card {
  display: flex;
  align-items: center;
  gap: .85rem;
  padding: .85rem 1rem;
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-lg);
  margin-bottom: .6rem;
  transition: border-color .15s, box-shadow .15s;
}
.user-card:hover { border-color: var(--clr-primary); box-shadow: var(--shadow-sm); }

.user-card-info { flex: 1; min-width: 0; }
.user-card-name {
  font-weight: 700;
  font-size: var(--text-md);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.user-card-meta {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  margin-top: .15rem;
}
.user-card-actions { display: flex; gap: .4rem; flex-shrink: 0; }
.user-card-score {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--clr-primary);
  flex-shrink: 0;
}

/* Rang dans la liste d'amis */
.rank-badge {
  font-size: var(--text-xs);
  font-weight: 800;
  color: var(--clr-text-muted);
  min-width: 24px;
  text-align: center;
}

/* ── Barre de recherche ── */
.search-bar {
  position: relative;
  margin-bottom: 1.25rem;
}
.search-bar input {
  width: 100%;
  padding: .75rem 1rem .75rem 2.75rem;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-full);
  font-size: var(--text-md);
  background: var(--clr-surface);
  transition: border-color .15s, box-shadow .15s;
  box-sizing: border-box;
}
.search-bar input:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,.1);
}
.search-icon {
  position: absolute;
  left: .9rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1rem;
  pointer-events: none;
}
.search-hint, .loading-state {
  text-align: center;
  color: var(--clr-text-muted);
  padding: 2rem 0;
  font-size: var(--text-sm);
}
.user-list { display: flex; flex-direction: column; }

/* ── Badges statut ── */
.badge-friend {
  background: var(--clr-success-bg);
  color: var(--clr-success);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: .3rem .7rem;
  border-radius: var(--radius-full);
}
.badge-pending {
  background: var(--clr-warning-bg);
  color: var(--clr-warning);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: .3rem .7rem;
  border-radius: var(--radius-full);
}

/* ── Boutons petits ── */
.btn-sm {
  padding: .35rem .8rem !important;
  font-size: var(--text-sm) !important;
}
.btn-success {
  background: var(--clr-success);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 700;
  cursor: pointer;
  padding: .5rem 1rem;
  transition: opacity .15s;
}
.btn-success:hover { opacity: .88; }
.btn-danger {
  background: var(--clr-error);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 700;
  cursor: pointer;
  padding: .5rem 1rem;
  transition: opacity .15s;
}
.btn-danger:hover { opacity: .88; }

/* ── Profil public ── */
.public-profile-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}
.public-profile-info { flex: 1; }
.public-profile-action {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1.5rem;
}

/* ─────────────────────────────────────────────
   25. CHAT — Liste conversations + Chat-room
───────────────────────────────────────────── */

/* ── Vue chat-room (layout fixe) ── */
.chat-view {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh; /* dynamic viewport pour mobile */
}

/* Header de la conversation */
.chat-header {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .75rem 1rem;
  background: var(--clr-surface);
  border-bottom: 1.5px solid var(--clr-border);
  flex-shrink: 0;
  position: sticky;
  top: 0;
  z-index: 10;
}
.chat-header-user { flex: 1; cursor: pointer; }
.chat-partner-name {
  font-weight: 700;
  font-size: var(--text-md);
}

/* Zone de messages (scrollable) */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: .4rem;
  background: var(--clr-bg);
}

.chat-empty {
  text-align: center;
  color: var(--clr-text-muted);
  margin: auto;
  font-size: var(--text-sm);
}

/* Séparateur de date */
.chat-date-sep {
  text-align: center;
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
  margin: .75rem 0 .25rem;
  position: relative;
}
.chat-date-sep::before,
.chat-date-sep::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 25%;
  height: 1px;
  background: var(--clr-border);
}
.chat-date-sep::before { left: 0; }
.chat-date-sep::after  { right: 0; }

/* Bulles */
.chat-bubble {
  max-width: 72%;
  padding: .55rem .85rem;
  border-radius: 18px;
  font-size: var(--text-sm);
  line-height: 1.45;
  word-break: break-word;
}
.bubble-me {
  align-self: flex-end;
  background: var(--clr-primary);
  color: #fff;
  border-bottom-right-radius: 4px;
}
.bubble-other {
  align-self: flex-start;
  background: var(--clr-surface);
  color: var(--clr-text);
  border: 1.5px solid var(--clr-border);
  border-bottom-left-radius: 4px;
}
.bubble-time {
  font-size: 10px;
  opacity: .65;
  margin-top: .25rem;
  text-align: right;
}
.bubble-other .bubble-time { text-align: left; }

/* Barre de saisie (épinglée en bas) */
.chat-input-bar {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1rem;
  background: var(--clr-surface);
  border-top: 1.5px solid var(--clr-border);
  flex-shrink: 0;
}
.chat-input-bar input {
  flex: 1;
  padding: .6rem 1rem;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  background: var(--clr-bg);
  transition: border-color .15s;
}
.chat-input-bar input:focus {
  outline: none;
  border-color: var(--clr-primary);
}
.chat-send-btn {
  width: 40px;
  height: 40px;
  background: var(--clr-primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background .15s, transform .1s;
}
.chat-send-btn:hover  { background: var(--clr-primary-dark); }
.chat-send-btn:active { transform: scale(.93); }

/* ── Liste des conversations ── */
.conv-card {
  display: flex;
  align-items: center;
  gap: .85rem;
  padding: .9rem 1rem;
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-lg);
  margin-bottom: .6rem;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s;
}
.conv-card:hover { border-color: var(--clr-primary); box-shadow: var(--shadow-sm); }
.conv-card.conv-unread { border-color: var(--clr-primary); background: var(--clr-primary-light); }

.conv-info { flex: 1; min-width: 0; }
.conv-name {
  font-weight: 700;
  font-size: var(--text-md);
  display: flex;
  align-items: center;
  gap: .4rem;
}
.conv-country { font-size: var(--text-xs); color: var(--clr-text-muted); font-weight: 400; }
.conv-last {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: .15rem;
}
.conv-unread .conv-last { color: var(--clr-primary); font-weight: 600; }

.conv-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: .3rem;
  flex-shrink: 0;
}
.conv-time {
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
}
.conv-badge {
  background: var(--clr-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  min-width: 20px;
  height: 20px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
}

/* ─────────────────────────────────────────────
   26. LEADERBOARD — Classements
───────────────────────────────────────────── */

/* Onglets Global / Pays / Amis */
.lb-tabs {
  display: flex;
  gap: .4rem;
  margin-bottom: 1.25rem;
  background: var(--clr-border);
  border-radius: var(--radius-full);
  padding: 3px;
}
.lb-tab {
  flex: 1;
  padding: .45rem .6rem;
  border: none;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  background: none;
  color: var(--clr-text-muted);
  transition: background .15s, color .15s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lb-tab.active {
  background: var(--clr-surface);
  color: var(--clr-primary);
  box-shadow: 0 1px 4px rgba(0,0,0,.08);
}

/* Capsule "Ma position" */
.my-rank-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .85rem 1rem;
  background: var(--clr-primary-light);
  border: 2px solid var(--clr-primary);
  border-radius: var(--radius-lg);
  margin-bottom: 1.25rem;
}
.my-rank-left {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.my-rank-name { font-weight: 700; font-size: var(--text-md); }
.my-rank-sub  { font-size: var(--text-sm); color: var(--clr-text-muted); }
.my-rank-badge {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--clr-primary);
}

/* Podium top 3 */
.lb-podium {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: .5rem;
  margin-bottom: 1.5rem;
}
.podium-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  max-width: 110px;
  cursor: pointer;
  transition: transform .15s;
}
.podium-col:hover { transform: translateY(-3px); }
.podium-col.podium-me .podium-name { color: var(--clr-primary); font-weight: 800; }

.podium-avatar { margin-bottom: .35rem; }
.podium-name {
  font-size: var(--text-xs);
  font-weight: 700;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
}
.podium-score {
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
  margin-bottom: .4rem;
}
.podium-base {
  width: 100%;
  background: linear-gradient(180deg, var(--clr-primary-light), var(--clr-border));
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: height .3s ease;
}
.podium-medal { font-size: 1.5rem; }

/* Lignes du classement (#4+) */
.lb-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .75rem .85rem;
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-lg);
  margin-bottom: .5rem;
  cursor: pointer;
  transition: border-color .15s;
}
.lb-row:hover { border-color: var(--clr-primary); }
.lb-row.lb-row-me {
  border-color: var(--clr-primary);
  background: var(--clr-primary-light);
}

.lb-rank {
  font-size: var(--text-sm);
  font-weight: 800;
  color: var(--clr-text-muted);
  min-width: 28px;
  text-align: center;
}
.lb-info  { flex: 1; min-width: 0; }
.lb-name  {
  font-weight: 700;
  font-size: var(--text-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lb-meta  { font-size: var(--text-xs); color: var(--clr-text-muted); margin-top: .1rem; }
.lb-score {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--clr-primary);
  flex-shrink: 0;
}
.lb-you {
  display: inline-block;
  background: var(--clr-primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  margin-left: .3rem;
  vertical-align: middle;
}

/* ─────────────────────────────────────────────
   27. NOTIFICATIONS — Liste
───────────────────────────────────────────── */

.notif-card {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
  padding: .9rem 1rem;
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-lg);
  margin-bottom: .6rem;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s;
  position: relative;
}
.notif-card:hover {
  border-color: var(--clr-primary);
  box-shadow: var(--shadow-sm);
}
.notif-card.notif-unread {
  border-color: var(--clr-primary);
  background: var(--clr-primary-light);
}

.notif-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: .1rem;
}

.notif-body   { flex: 1; min-width: 0; }
.notif-label  {
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--clr-text);
}
.notif-content {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  margin-top: .2rem;
  line-height: 1.4;
}
.notif-time {
  font-size: var(--text-xs);
  color: var(--clr-text-light);
  margin-top: .35rem;
}

/* Boutons accepter/refuser dans notif */
.notif-friend-actions {
  display: flex;
  gap: .4rem;
  margin-top: .5rem;
}

/* Bouton marquer lu */
.notif-read-btn {
  background: var(--clr-primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  font-size: .75rem;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity .15s;
  margin-top: .15rem;
}
.notif-read-btn:hover { opacity: .8; }

/* Point "déjà lu" */
.notif-read-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: .5rem;
}
.notif-read-dot.read { background: var(--clr-border); }

/* ═══════════════════════════════════════
   PROFIL — SECTION PROJETS
═══════════════════════════════════════ */

.profile-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: .75rem;
}

.profile-projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.profile-project-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow .2s;
}
.profile-project-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.08); }

.pproject-preview {
  height: 120px;
  background: #f8fafc;
  overflow: hidden;
}
.pproject-info {
  padding: .6rem .75rem .25rem;
}
.pproject-title {
  font-weight: 600;
  font-size: .9rem;
  color: var(--clr-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pproject-meta {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-top: .25rem;
  font-size: .78rem;
  color: var(--clr-text-muted);
}
.pproject-badge {
  font-size: .7rem;
  font-weight: 600;
  padding: .1rem .4rem;
  border-radius: .25rem;
}
.pproject-badge.published { background: #dcfce7; color: #166534; }
.pproject-badge.draft     { background: #fef9c3; color: #854d0e; }
.pproject-actions {
  display: flex;
  gap: .4rem;
  padding: .5rem .75rem .6rem;
}

/* ═══════════════════════════════════════
   RACCOURCIS HOME
═══════════════════════════════════════ */

.home-shortcuts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
  padding-bottom: 2rem;
}

.shortcut-card {
  display: flex;
  align-items: center;
  gap: .75rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: .9rem 1rem;
  cursor: pointer;
  text-align: left;
  transition: box-shadow .2s, transform .2s;
  width: 100%;
}
.shortcut-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,.08);
  transform: translateY(-1px);
}

.shortcut-icon { font-size: 1.5rem; flex-shrink: 0; }
.shortcut-info { flex: 1; min-width: 0; }
.shortcut-title {
  font-weight: 600;
  font-size: .9rem;
  color: var(--clr-text);
}
.shortcut-desc {
  font-size: .8rem;
  color: var(--clr-text-muted);
  margin-top: .1rem;
}
.shortcut-arrow {
  font-size: 1.3rem;
  color: var(--clr-text-light);
  flex-shrink: 0;
}

@media (max-width: 480px) {
  .home-shortcuts { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════
   ÉDITEUR DE CODE
═══════════════════════════════════════ */

.code-editor-view {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.code-editor-wrapper {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  background: #0f172a;
}

/* ── Toolbar ── */
.editor-toolbar {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .5rem 1rem;
  background: #1e293b;
  border-bottom: 1px solid #334155;
  flex-shrink: 0;
}

.editor-title {
  color: #e2e8f0;
  font-weight: 600;
  font-size: .95rem;
  flex: 1;
}

.editor-title-input {
  flex: 1;
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: .375rem;
  color: #e2e8f0;
  padding: .35rem .6rem;
  font-size: .9rem;
  outline: none;
  min-width: 0;
}
.editor-title-input:focus { border-color: #6366f1; }

.editor-toolbar-actions {
  display: flex;
  gap: .5rem;
  flex-shrink: 0;
}

.btn-run {
  background: #22c55e;
  color: #fff;
  border: none;
  border-radius: .375rem;
  padding: .4rem .9rem;
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s;
}
.btn-run:hover { opacity: .85; }

.btn-save-code {
  background: #334155;
  color: #e2e8f0;
  border: none;
  border-radius: .375rem;
  padding: .4rem .9rem;
  font-size: .85rem;
  cursor: pointer;
  transition: background .15s;
}
.btn-save-code:hover { background: #475569; }

.btn-publish-code {
  background: #6366f1;
  color: #fff;
  border: none;
  border-radius: .375rem;
  padding: .4rem .9rem;
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s;
}
.btn-publish-code:hover { opacity: .85; }

.btn-check-code {
  padding: .4rem .9rem;
  font-size: .85rem;
}

/* ── Instruction exercice ── */
.editor-instruction {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  padding: .65rem 1rem;
  background: #1e293b;
  border-bottom: 1px solid #334155;
  color: #94a3b8;
  font-size: .9rem;
  flex-shrink: 0;
}
.editor-instruction-icon { font-size: 1rem; flex-shrink: 0; }

/* ── Layout principal (panneau gauche / séparateur / aperçu) ── */
.editor-main {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.editor-panel {
  flex: 0 0 50%;
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-right: 2px solid #334155;
}

.editor-divider {
  width: 5px;
  background: #1e293b;
  cursor: col-resize;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background .15s;
}
.editor-divider:hover { background: #6366f1; }
.divider-handle {
  width: 3px;
  height: 32px;
  background: #475569;
  border-radius: 2px;
}

.editor-preview-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: #fff;
}

/* ── Onglets HTML / CSS / JS ── */
.editor-tabs {
  display: flex;
  background: #1e293b;
  border-bottom: 1px solid #334155;
  flex-shrink: 0;
}

.editor-tab {
  display: flex;
  align-items: center;
  gap: .35rem;
  padding: .5rem .9rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: #94a3b8;
  font-size: .85rem;
  cursor: pointer;
  transition: color .15s, border-color .15s;
}
.editor-tab:hover { color: #e2e8f0; }
.editor-tab.active {
  color: #e2e8f0;
  border-bottom-color: #6366f1;
  font-weight: 600;
}

.tab-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.tab-html { background: #f97316; }
.tab-css  { background: #3b82f6; }
.tab-js   { background: #eab308; }

/* ── Zone de code (textarea + numéros) ── */
.editor-code-area {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  font-family: "Fira Code", "Cascadia Code", "Consolas", monospace;
  font-size: .85rem;
  line-height: 1.6;
}

.editor-lines {
  padding: .75rem .5rem;
  background: #0f172a;
  color: #475569;
  text-align: right;
  user-select: none;
  overflow: hidden;
  flex-shrink: 0;
  min-width: 2.5rem;
  font-size: .8rem;
  line-height: 1.6;
}

.editor-textarea {
  flex: 1;
  padding: .75rem;
  background: #0f172a;
  color: #e2e8f0;
  border: none;
  outline: none;
  resize: none;
  font-family: inherit;
  font-size: inherit;
  line-height: 1.6;
  tab-size: 2;
  overflow-y: auto;
  white-space: pre;
  overflow-x: auto;
}

/* ── Aperçu ── */
.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .4rem .75rem;
  background: #f1f5f9;
  border-bottom: 1px solid #e2e8f0;
  flex-shrink: 0;
}
.preview-label {
  font-size: .8rem;
  color: #64748b;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.preview-refresh {
  background: none;
  border: none;
  color: #64748b;
  cursor: pointer;
  font-size: 1.1rem;
  padding: .1rem .3rem;
  border-radius: .25rem;
  transition: background .15s;
}
.preview-refresh:hover { background: #e2e8f0; }

.preview-frame {
  flex: 1;
  border: none;
  width: 100%;
  height: 100%;
}

/* ── Feedback exercice code ── */
.editor-feedback {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .65rem 1rem;
  font-size: .9rem;
  font-weight: 500;
  flex-shrink: 0;
}
.editor-feedback.feedback-ok  { background: #dcfce7; color: #166534; }
.editor-feedback.feedback-err { background: #fee2e2; color: #991b1b; }
.editor-feedback.hidden { display: none; }

/* ── Mobile : éditeur empilé ── */
@media (max-width: 640px) {
  .editor-main { flex-direction: column; }
  .editor-panel { flex: 0 0 50vh; border-right: none; border-bottom: 2px solid #334155; }
  .editor-divider { display: none; }
  .editor-preview-panel { flex: 1; }
}

/* ═══════════════════════════════════════
   GALERIE CRÉATIONS
═══════════════════════════════════════ */

.creations-main {
  padding: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
}

.creations-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  gap: 1rem;
}

.creations-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--clr-text);
}

/* ═══════════════════════════════════════
   PANEL ADMIN
═══════════════════════════════════════ */

.admin-view {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: #0f172a;
  color: #e2e8f0;
}

/* Header */
.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .875rem 1.5rem;
  background: #1e293b;
  border-bottom: 1px solid #334155;
  flex-shrink: 0;
  gap: 1rem;
  flex-wrap: wrap;
}
.admin-header-left { display: flex; align-items: center; gap: 1rem; }
.admin-title {
  display: flex; align-items: center; gap: .5rem;
  font-size: 1.1rem; font-weight: 700; color: #f8fafc;
}
.admin-crown { font-size: 1.3rem; }
.admin-badge-title {
  background: linear-gradient(135deg,#7C3AED,#4F46E5);
  color: #fff; font-size: .7rem; font-weight: 700;
  padding: .2rem .55rem; border-radius: 99px; letter-spacing: .04em;
}
.admin-live-stats { display: flex; gap: .75rem; flex-wrap: wrap; }

/* Onglets */
.admin-tabs-bar {
  display: flex; gap: .25rem;
  padding: .75rem 1.5rem;
  background: #1e293b;
  border-bottom: 1px solid #334155;
  flex-shrink: 0;
  overflow-x: auto;
}
.admin-tab-btn {
  padding: .5rem 1rem; border-radius: 8px;
  border: none; background: transparent;
  color: #94a3b8; font-size: .875rem; font-weight: 600;
  cursor: pointer; white-space: nowrap;
  transition: background .15s, color .15s;
}
.admin-tab-btn:hover { background: #334155; color: #e2e8f0; }
.admin-tab-btn.active { background: #4F46E5; color: #fff; }

/* Contenu */
.admin-content {
  flex: 1; overflow-y: auto;
  padding: 1.5rem;
}
.admin-loading {
  text-align: center; color: #64748b;
  padding: 3rem; font-size: 1rem;
}
.admin-empty {
  text-align: center; color: #64748b;
  padding: 2rem; font-size: .9rem;
}

/* KPI */
.admin-kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px,1fr));
  gap: 1rem; margin-bottom: 1.5rem;
}
.admin-kpi {
  background: #1e293b; border-radius: 12px;
  padding: 1.25rem; text-align: center;
  border: 1px solid #334155;
}
.admin-kpi-icon { font-size: 1.75rem; margin-bottom: .4rem; }
.admin-kpi-val { font-size: 1.75rem; font-weight: 800; color: #f8fafc; }
.admin-kpi-label { font-size: .8rem; color: #94a3b8; margin-top: .25rem; }
.admin-kpi-sub { font-size: .75rem; color: #64748b; margin-top: .2rem; }

/* Grille dashboard */
.admin-dash-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px,1fr));
  gap: 1rem;
}

/* Cards */
.admin-card {
  background: #1e293b; border-radius: 12px;
  border: 1px solid #334155; padding: 1.25rem;
}
.admin-card-title {
  font-size: .95rem; font-weight: 700;
  color: #f8fafc; margin-bottom: 1rem;
}

/* Barres */
.admin-bar-row {
  display: flex; align-items: center; gap: .75rem;
  margin-bottom: .6rem;
}
.admin-bar-label { font-size: .8rem; color: #94a3b8; width: 120px; flex-shrink: 0; }
.admin-bar-track {
  flex: 1; height: 8px; background: #334155;
  border-radius: 99px; overflow: hidden;
}
.admin-bar-fill { height: 100%; border-radius: 99px; transition: width .4s; }
.admin-bar-val { font-size: .78rem; color: #64748b; width: 70px; text-align: right; }

/* Tables */
.admin-table {
  width: 100%; border-collapse: collapse;
  font-size: .85rem; color: #cbd5e1;
}
.admin-table-full { width: 100%; }
.admin-table thead th {
  padding: .6rem .75rem; text-align: left;
  font-size: .75rem; font-weight: 700;
  color: #64748b; text-transform: uppercase;
  border-bottom: 1px solid #334155;
}
.admin-table tbody td {
  padding: .65rem .75rem;
  border-bottom: 1px solid #1e293b;
  vertical-align: middle;
}
.admin-table tbody tr:hover { background: #334155; }
.admin-row-banned { opacity: .55; }

/* Toolbar */
.admin-toolbar {
  display: flex; gap: .75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.admin-search, .admin-select, .admin-input {
  padding: .5rem .75rem; border-radius: 8px;
  border: 1px solid #334155;
  background: #0f172a; color: #e2e8f0;
  font-size: .875rem; outline: none;
}
.admin-search { flex: 1; min-width: 200px; }
.admin-search:focus, .admin-input:focus { border-color: #4F46E5; }
.admin-input { width: 100%; box-sizing: border-box; margin-bottom: .1rem; }
.admin-select { cursor: pointer; }

.admin-count-label {
  font-size: .8rem; color: #64748b;
  margin-bottom: .75rem;
}

/* User cell */
.admin-user-cell { display: flex; align-items: center; gap: .6rem; }
.admin-avatar-sm {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: .85rem; font-weight: 700; color: #fff;
  flex-shrink: 0;
}
.admin-username { font-weight: 600; color: #f8fafc; font-size: .875rem; }
.admin-uid, .admin-email, .admin-date {
  font-size: .75rem; color: #64748b;
}
.admin-email { font-size: .8rem; }

/* Statut badges */
.admin-status-badge {
  display: inline-block; padding: .2rem .55rem;
  border-radius: 99px; font-size: .72rem; font-weight: 700;
  text-transform: uppercase;
}
.admin-status-badge.active  { background: #14532d; color: #4ade80; }
.admin-status-badge.banned  { background: #450a0a; color: #f87171; }
.admin-status-badge.draft   { background: #1c1917; color: #a8a29e; }

/* Rank badges */
.admin-rank-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 24px; height: 24px; border-radius: 50%;
  font-size: .75rem; font-weight: 800;
}
.admin-rank-badge.rank-1 { background: #ca8a04; color: #fff; }
.admin-rank-badge.rank-2 { background: #94a3b8; color: #0f172a; }
.admin-rank-badge.rank-3 { background: #c2410c; color: #fff; }
.admin-rank-badge.rank-4,
.admin-rank-badge.rank-5 { background: #334155; color: #94a3b8; }

.admin-xp-chip {
  background: #1c1f2e; color: #fbbf24;
  border-radius: 99px; padding: .15rem .5rem;
  font-size: .78rem; font-weight: 700;
}

/* Boutons admin */
.admin-btn {
  padding: .55rem 1rem; border-radius: 8px;
  border: none; cursor: pointer;
  font-size: .875rem; font-weight: 600;
  transition: opacity .15s;
}
.admin-btn:hover { opacity: .85; }
.admin-btn-primary { background: #4F46E5; color: #fff; }
.admin-btn-secondary { background: #334155; color: #e2e8f0; }
.admin-btn-danger { background: #dc2626; color: #fff; }

.admin-btn-xs {
  padding: .25rem .55rem; border-radius: 6px;
  border: none; cursor: pointer;
  font-size: .75rem; font-weight: 600;
  transition: opacity .15s;
}
.admin-btn-xs:hover { opacity: .8; }
.admin-btn-xs-primary   { background: #4F46E5; color: #fff; }
.admin-btn-xs-success   { background: #16a34a; color: #fff; }
.admin-btn-xs-warning   { background: #d97706; color: #fff; }
.admin-btn-xs-danger    { background: #dc2626; color: #fff; }

.admin-actions-cell { display: flex; gap: .4rem; flex-wrap: wrap; }

/* Quick actions */
.admin-quick-actions {
  display: flex; flex-direction: column; gap: .6rem;
}

/* Notifs */
.admin-notifs-panel { max-width: 800px; }
.admin-users-panel { }
.admin-field-row {
  display: flex; flex-direction: column; gap: .3rem;
  margin-bottom: .6rem;
}
.admin-field-row label {
  font-size: .78rem; color: #94a3b8; font-weight: 600;
}
.admin-notif-type {
  display: inline-block; padding: .15rem .45rem;
  border-radius: 6px; font-size: .72rem; font-weight: 700;
  background: #334155; color: #94a3b8;
}

/* Logs */
.admin-logs-panel { }
.admin-log-stream {
  display: flex; flex-direction: column; gap: .4rem;
  max-height: 400px; overflow-y: auto;
}
.admin-log-entry {
  display: flex; align-items: center; gap: .75rem;
  padding: .5rem .75rem; background: #0f172a;
  border-radius: 8px; font-size: .82rem;
}
.admin-log-type {
  padding: .15rem .45rem; border-radius: 6px;
  font-size: .7rem; font-weight: 700;
  background: #1e293b; color: #94a3b8;
  flex-shrink: 0;
}
.admin-log-msg { flex: 1; color: #cbd5e1; }
.admin-log-time { color: #475569; font-size: .75rem; flex-shrink: 0; }

/* Modal user */
.admin-modal-user { padding: .5rem 0; }
.admin-modal-avatar {
  width: 64px; height: 64px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.75rem; font-weight: 800; color: #fff;
  margin: 0 auto .75rem;
}
.admin-modal-title {
  font-size: 1.2rem; font-weight: 700;
  text-align: center; color: var(--clr-text);
  margin-bottom: .25rem;
}
.admin-modal-sub {
  text-align: center; color: var(--clr-text-muted);
  font-size: .85rem; margin-bottom: 1.25rem;
}
.admin-modal-form { margin-bottom: 1.25rem; }
.admin-modal-actions {
  display: flex; gap: .75rem; justify-content: center;
}

/* Bouton admin dans profil */
.btn-admin-access {
  padding: .55rem 1.1rem; border-radius: 10px;
  border: none; cursor: pointer;
  background: linear-gradient(135deg,#7C3AED,#4F46E5);
  color: #fff; font-size: .9rem; font-weight: 700;
  box-shadow: 0 2px 8px rgba(79,70,229,.35);
  transition: opacity .15s, transform .1s;
}
.btn-admin-access:hover { opacity: .9; transform: translateY(-1px); }

@media (max-width: 640px) {
  .admin-dash-grid { grid-template-columns: 1fr; }
  .admin-kpi-grid  { grid-template-columns: repeat(2,1fr); }
  .admin-content   { padding: 1rem; }
}

.creations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.creation-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow .2s, transform .2s;
}
.creation-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  transform: translateY(-2px);
}

.creation-preview {
  height: 160px;
  background: #f8fafc;
  overflow: hidden;
  position: relative;
}
.creation-frame {
  width: 100%;
  height: 100%;
  border: none;
  pointer-events: none;
  transform-origin: top left;
}

.creation-info {
  padding: .75rem 1rem;
}
.creation-name {
  font-weight: 600;
  font-size: .95rem;
  color: var(--clr-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.creation-author {
  font-size: .8rem;
  color: var(--clr-text-muted);
  margin-top: .15rem;
}
.creation-meta {
  font-size: .8rem;
  color: var(--clr-text-muted);
  margin-top: .4rem;
}

/* ── Détail création ── */
.creation-detail {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  padding: 1rem 1.5rem;
  gap: .75rem;
}
.creation-detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}
.creation-detail-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--clr-text);
}
.creation-detail-meta {
  font-size: .85rem;
  color: var(--clr-text-muted);
}
.creation-detail-frame {
  flex: 1;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  background: #fff;
  min-height: 400px;
  width: 100%;
}

.btn-like {
  display: flex;
  align-items: center;
  gap: .3rem;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: .4rem .9rem;
  font-size: .9rem;
  cursor: pointer;
  transition: background .15s;
  white-space: nowrap;
}
.btn-like:hover, .btn-like.liked {
  background: #fee2e2;
  border-color: #fca5a5;
  color: #dc2626;
}