:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --accent: #3b82f6;
    --led-on: #ef4444;
    --text: #f8fafc;
    --robot-color: #ef4444; /* Variable par défaut */
}

body {
    background: var(--bg-color); color: var(--text);
    font-family: 'Segoe UI', sans-serif;
    display: flex; justify-content: center; align-items: center;
    min-height: 100vh; margin: 0; overflow-x: hidden;
}

.hidden { display: none !important; }

/* --- TITRE & AMPOULE --- */
.neon-title { font-size: 3rem; margin: 0; text-align: center; letter-spacing: 3px; text-shadow: 0 0 8px rgba(59, 130, 246, 0.4); }
.neon-line { height: 2px; background: var(--accent); width: 60px; margin: 10px auto; opacity: 0.5; }
.neon-bulb { display: inline-block; color: #fff; transform: translateY(-3px); text-shadow: 0 0 5px #fff, 0 0 10px #fefce8, 0 0 20px var(--accent); animation: blow-effect 2s ease-in-out infinite alternate; }
@keyframes blow-effect {
    0% { transform: translateY(-3px) scale(1); opacity: 0.85; text-shadow: 0 0 5px #fff, 0 0 10px var(--accent); }
    100% { transform: translateY(-3px) scale(1.15); opacity: 1; color: #feffdf; text-shadow: 0 0 10px #fff, 0 0 20px #fff, 0 0 40px var(--accent); }
}

/* --- MENU GRID (Correction Décalage) --- */
.menu-grid {
    display: flex;
    flex-wrap: wrap; /* Important pour que ça passe à la ligne si besoin */
    justify-content: center;
    gap: 20px;
    max-width: 900px; /* Limite la largeur pour éviter l'éclatement */
}

.menu-card { 
    background: var(--card-bg); 
    padding: 20px; 
    border-radius: 15px; 
    border: 1px solid #334155; 
    flex: 1; /* Chaque carte prend la même place */
    min-width: 200px; /* Taille min pour éviter l'écrasement */
}
.menu-card.full-width { width: 100%; flex: none; margin-bottom: 20px; }

/* --- PRÉVISUALISATION --- */
/* --- PRÉVISUALISATION (Version Large) --- */
.preview-card {
    min-width: 260px; /* On élargit un peu la carte pour que le 8x8 rentre */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-grow: 1; /* Force la carte à prendre toute la hauteur disponible */
}

#grid-preview-container {
    display: grid;
    gap: 6px; /* Espace un peu plus grand entre les points */
    padding: 20px; /* Plus de marge intérieure */
    background: rgba(0, 0, 0, 0.4); /* Fond un peu plus sombre pour le contraste */
    border-radius: 12px;
    margin-top: 10px;
    
    /* Ombre pour donner du volume */
    box-shadow: inset 0 0 15px rgba(0,0,0,0.5); 
    border: 1px solid #334155;
    
    /* Animation fluide lors du changement de taille */
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.preview-cell {
    width: 28px;  /* BEAUCOUP PLUS GRAND (c'était 12px) */
    height: 28px; /* Carré parfait */
    background: #475569;
    border-radius: 4px; /* Coins légèrement arrondis */
    
    /* Petit effet de relief */
    box-shadow: 0 2px 0 rgba(0,0,0,0.3);
    transition: background 0.3s;
}

/* Petit effet bonus : quand on passe la souris dessus */
.preview-cell:hover {
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}

/* --- INPUTS --- */
.input-row { display: flex; justify-content: center; gap: 15px; margin-bottom: 15px; }
.input-field { display: flex; flex-direction: column; align-items: center; }
.input-field input { width: 60px; height: 40px; background: rgba(15, 23, 42, 0.6); border: 2px solid #334155; color: white; text-align: center; border-radius: 12px; font-weight: bold; }
.input-field input:focus { border-color: var(--accent); outline: none; }
input::-webkit-outer-spin-button, input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

/* --- BOUTONS --- */
button { background: var(--accent); color: white; border: none; padding: 10px; border-radius: 6px; cursor: pointer; font-weight: bold; }
.btn-group-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px; }
.btn-group-grid button { padding: 15px 0; font-size: 1.1rem; }
.hint-btn { background: #f59e0b !important; } 
.undo-btn { background: #6366f1 !important; } 
.danger-btn { background: #991b1b !important; }
.back-btn { width: 100%; background: #475569; margin-top: 10px; }
#btn-start-custom { position: fixed; bottom: 40px; left: 50%; transform: translateX(-50%); background: linear-gradient(135deg, #10b981, #059669); padding: 15px 40px; border-radius: 50px; font-size: 1.2rem; border: 2px solid #34d399; box-shadow: 0 0 20px rgba(16,185,129,0.6); z-index: 1000; animation: pulse-green 2s infinite; }
@keyframes pulse-green { 0% { box-shadow: 0 0 0 0 rgba(16,185,129,0.7); } 70% { box-shadow: 0 0 0 20px rgba(16,185,129,0); } 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0); } }

/* --- JEU & GRILLE (CORRIGÉ) --- */
#game-layout { 
    display: flex; 
    gap: 20px; 
    padding: 20px; 
    background: #0f172a; 
    border-radius: 20px; 
    align-items: flex-start; /* Évite que le panneau historique s'étire bizarrement */
}

/* Le conteneur définit la zone maximale disponible */
#grid-container { 
    width: 450px; 
    height: 450px; 
    background: var(--card-bg); 
    border-radius: 12px;
    padding: 10px; /* Un peu d'espace interne */
    
    /* On centre la grille à l'intérieur */
    display: flex; 
    justify-content: center; 
    align-items: center; 
}

/* La grille s'adapte à l'espace */
.grid { 
    display: grid; 
    gap: 6px; 
    width: 100%; 
    height: 100%;
    
    /* Important pour que les cellules ne dépassent pas si la grille est petite */
    max-width: 100%;
    max-height: 100%;
    
    /* Pour centrer le contenu si la grille est irrégulière */
    justify-content: center;
    align-content: center;
}

/* Les cellules s'adaptent et ne "sautent" plus */
.cell { 
    width: auto;  /* On enlève le 45px fixe */
    height: auto; /* On enlève le 45px fixe */
    aspect-ratio: 1 / 1; /* Reste toujours carré ! */
    
    border-radius: 15%; /* Arrondi proportionnel */
    background: #334155; 
    cursor: pointer; 
    position: relative; 
    transition: background 0.3s, transform 0.2s;
    
    /* CORRECTION DU "SAUT" : On met une bordure invisible par défaut */
    border: 3px solid transparent; 
    box-sizing: border-box; /* La bordure est incluse dans la taille */
}

.cell:hover {
    transform: scale(1.05);
}

.cell.on { 
    background: var(--led-on); 
    box-shadow: 0 0 15px var(--led-on); 
    border-color: rgba(255,255,255,0.3); /* Petit effet de relief quand allumé */
}

/* Viseur de l'IA (Cible) */
.cell.ai-target::after { 
    content: ''; 
    position: absolute; 
    top: 50%; left: 50%; 
    transform: translate(-50%, -50%); 
    width: 50%; height: 50%; /* Taille relative à la case */
    border: 3px solid #ffffff; 
    border-radius: 50%; 
    box-shadow: 0 0 10px #ffffff; 
    animation: ping 0.5s infinite; 
}

/* Source de l'IA (Cause) - CORRIGÉ */
.cell.ai-source { 
    /* On change juste la couleur, la bordure existe déjà (transparent) */
    border-color: #a855f7; 
    box-shadow: 0 0 15px #a855f7, inset 0 0 10px #a855f7; 
}

@keyframes ping { 
    0% { transform: translate(-50%, -50%) scale(0.8); opacity: 0.8; } 
    100% { transform: translate(-50%, -50%) scale(1.4); opacity: 0; } 
}

/* --- ROBOT --- */
#ai-assistant { position: fixed; bottom: 20px; left: 20px; z-index: 500; }
.robot-container { display: flex; flex-direction: column; align-items: center; transition: all 0.5s ease; }
.mode-chasing { --robot-color: #ef4444; }
.mode-math { --robot-color: #3b82f6; }
.robot-img { width: 80px; cursor: pointer; animation: floating 3s ease-in-out infinite; border-radius: 50%; border: 3px solid var(--robot-color); background: rgba(0,0,0,0.3); padding: 5px; filter: drop-shadow(0 0 10px var(--robot-color)); transition: all 0.5s ease; }
.robot-name { margin-top: 8px; font-size: 0.7rem; font-weight: bold; text-transform: uppercase; color: var(--robot-color); text-shadow: 0 0 8px var(--robot-color); }
.pulse-name { animation: glow-pulse 1.5s infinite alternate; }
@keyframes floating { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes glow-pulse { from { opacity: 0.7; } to { opacity: 1; text-shadow: 0 0 20px var(--robot-color); } }
.bubble { background: white; color: black; padding: 12px; border-radius: 12px; margin-bottom: 15px; max-width: 200px; font-size: 0.85rem; position: relative; }
.hidden-bubble { display: none; }

/* --- HISTORIQUE & LIENS --- */
#log-panel { width: 200px; background: var(--card-bg); border: 1px solid #334155; border-radius: 15px; padding: 15px; height: 420px; display: flex; flex-direction: column; }
#move-list { flex-grow: 1; overflow-y: auto; font-family: monospace; font-size: 0.9rem; }
.move-item { background: rgba(0,0,0,0.2); padding: 5px; margin-bottom: 5px; border-radius: 4px; border-left: 2px solid var(--accent); color: #cbd5e1; }
.text-green { color: #4ade80; } .text-blue { color: #60a5fa; }
.btn-link { display: inline-block; text-decoration: none; color: white; padding: 8px; border-radius: 6px; font-size: 0.8rem; text-align: center; }
.info-btn { background: #4b5563; } .promo-btn { background: #8b5cf6; }
.custom-select { background: #0f172a; color: white; border: 1px solid var(--accent); padding: 8px; border-radius: 6px; width: 100%; margin-bottom: 10px; }
.extra-buttons { display: flex; gap: 10px; }
.overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.85); display: flex; justify-content: center; align-items: center; z-index: 1000; }
.victory-card { background: var(--card-bg); padding: 40px; border-radius: 20px; border: 2px solid var(--accent); text-align: center; }

/* --- PAGES STATIQUES (IA Info & Créateur) --- */

/* Conteneur principal qui permet le défilement */
.overlay-page-static { 
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%; 
    background: var(--bg-color); 
    z-index: 3000; 
    overflow-y: auto; /* Active le scroll vertical */
    display: block; 
    padding: 20px 0; 
}

/* La carte centrale */
.full-page-card { 
    background: var(--card-bg); 
    padding: 40px; 
    border-radius: 20px; 
    border: 1px solid var(--accent); 
    max-width: 700px; 
    width: 90%; 
    box-shadow: 0 0 50px rgba(0,0,0,0.5); 
    color: var(--text); 
    line-height: 1.6; 
    margin: 40px auto; /* Centre la carte et laisse de l'espace haut/bas */
    position: relative; 
}

/* Texte d'intro */
.intro-text { 
    text-align: center; 
    color: #94a3b8; 
    margin-bottom: 30px; 
    font-size: 1.1rem; 
}

/* Sections des Algorithmes */
.algo-section { 
    background: rgba(15, 23, 42, 0.6); 
    border-radius: 15px; 
    padding: 20px; 
    margin-bottom: 25px; 
    border: 1px solid #334155; 
    transition: transform 0.3s; 
}

.algo-section:hover { 
    transform: translateY(-5px); 
    border-color: var(--accent); 
}

.algo-header { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    margin-bottom: 15px; 
    padding-bottom: 10px; 
    border-bottom: 1px solid rgba(255,255,255,0.1); 
}

.algo-header h2 { 
    margin: 0; 
    font-size: 1.4rem; 
    display: flex; 
    align-items: center; 
    gap: 10px; 
}

/* Couleurs spécifiques des titres */
.mode-chasing-header h2 { color: #ef4444; } 
.mode-math-header h2 { color: #3b82f6; }

/* Badges (Heuristique / Algèbre) */
.badge { 
    padding: 5px 12px; 
    border-radius: 20px; 
    font-size: 0.8rem; 
    font-weight: bold; 
    text-transform: uppercase; 
    letter-spacing: 1px; 
}

.badge.chasing { background: rgba(239, 68, 68, 0.2); color: #ef4444; border: 1px solid #ef4444; }
.badge.math { background: rgba(59, 130, 246, 0.2); color: #3b82f6; border: 1px solid #3b82f6; }

/* Boîte de concept (La règle d'or) */
.concept-box { 
    background: #334155; 
    padding: 15px; 
    border-left: 4px solid #ef4444; 
    border-radius: 0 8px 8px 0; 
    margin: 15px 0; 
}

.concept-box h4 { margin: 0 0 5px 0; color: #fff; } 
.concept-box p { margin: 0; font-size: 0.95rem; }

/* Listes d'étapes */
.step-list { list-style: none; padding: 0; margin: 15px 0; } 
.step-list li { padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,0.05); color: #cbd5e1; }

/* Blocs Mathématiques */
.math-block { 
    background: #0f172a; 
    padding: 15px; 
    border-radius: 10px; 
    border: 1px solid #3b82f6; 
    text-align: center; 
    margin: 15px 0; 
}

.math-block code { 
    display: block; 
    font-family: 'Courier New', monospace; 
    font-size: 1.5rem; 
    color: #3b82f6; 
    margin-top: 10px; 
    font-weight: bold; 
    letter-spacing: 3px; 
}

/* Grille de détails (A, x, b) */
.details-grid { 
    display: grid; 
    grid-template-columns: 1fr 1fr 1fr; 
    gap: 10px; 
    margin-top: 20px; 
    text-align: center; 
    font-size: 0.85rem; 
}

.details-grid div { 
    background: rgba(255,255,255,0.05); 
    padding: 10px; 
    border-radius: 8px; 
}

/* Notes et Alertes */
.note { 
    font-size: 0.9rem; 
    padding: 10px; 
    background: rgba(255, 165, 0, 0.1); 
    color: #fbbf24; 
    border-radius: 6px; 
    margin-top: 15px; 
}

.note.info { background: rgba(59, 130, 246, 0.1); color: #60a5fa; }

/* Ligne de séparation */
.divider { 
    border: 0; 
    height: 1px; 
    background: linear-gradient(to right, transparent, #334155, transparent); 
    margin: 30px 0; 
}

/* Bloc Histoire */
.history-block { 
    text-align: center; 
    background: rgba(255, 255, 255, 0.05); 
    padding: 15px; 
    border-radius: 12px; 
    margin-bottom: 30px; 
    font-size: 0.95rem; 
    color: #cbd5e1; 
    border: 1px dashed #475569; 
}

.history-block h3 { 
    margin-top: 0; 
    color: var(--text); 
    font-size: 1.1rem; 
    margin-bottom: 10px; 
}

/* Styles spécifiques Créateur */
.profile-pic { font-size: 4rem; margin-bottom: 10px; }
.explanation h3 { color: var(--neon-blue); margin-top: 25px; border-bottom: 1px solid #334155; padding-bottom: 5px; }
/* --- STYLES SPÉCIFIQUES PAGE CRÉATEUR --- */

.creator-card {
    text-align: center;
    border-color: #10b981; /* Une touche de vert "Cybersécurité" */
}

/* En-tête Profil */
.profile-icon {
    font-size: 4rem;
    color: #10b981;
    background: rgba(16, 185, 129, 0.1);
    width: 100px;
    height: 100px;
    line-height: 100px;
    border-radius: 50%;
    margin: 0 auto 20px;
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
    border: 2px solid #10b981;
}

.creator-name {
    font-size: 2.2rem;
    margin: 0;
    color: #f8fafc;
    letter-spacing: 2px;
}

/* Badges des rôles */
.roles-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.role-badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid #475569;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: #cbd5e1;
    transition: all 0.3s;
}

.role-badge:hover {
    background: rgba(16, 185, 129, 0.2);
    border-color: #10b981;
    color: #fff;
    transform: translateY(-2px);
}

/* Section Vision */
.vision-section {
    text-align: left;
    background: rgba(15, 23, 42, 0.8);
    padding: 20px;
    border-radius: 12px;
    border-left: 4px solid #10b981;
    margin-bottom: 30px;
}

.vision-section h3 {
    margin-top: 0;
    color: #10b981;
}

/* Grille des valeurs */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
}

.value-item {
    background: rgba(255, 255, 255, 0.03);
    padding: 15px;
    border-radius: 10px;
    border: 1px solid #334155;
    transition: 0.3s;
}

.value-item:hover {
    border-color: #10b981;
    background: rgba(16, 185, 129, 0.05);
}

.icon-val {
    font-size: 1.5rem;
    color: #10b981;
    margin-bottom: 10px;
}

.value-item h4 {
    margin: 5px 0;
    font-size: 0.95rem;
    color: #fff;
}

.value-item p {
    font-size: 0.8rem;
    color: #94a3b8;
    margin: 0;
}

/* Citation Finale */
.final-quote {
    position: relative;
    padding: 20px;
    margin: 30px 0;
    font-style: italic;
    color: #cbd5e1;
}

.quote-icon {
    font-size: 1.5rem;
    color: #475569;
    margin-bottom: 10px;
    display: block;
}

.quote-highlight {
    display: block;
    margin-top: 10px;
    color: #10b981;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-style: normal;
}
/* --- BARRE DE RÉSEAUX --- */
.social-links {
    margin-top: 25px;
    display: flex;
    justify-content: center;
    gap: 25px; /* Espace entre les icônes */
}

.social-icon {
    font-size: 2rem; /* Taille des icônes */
    color: #64748b;  /* Gris discret par défaut */
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    text-decoration: none;
    display: inline-block;
}

/* Animation au survol générale */
.social-icon:hover {
    transform: translateY(-5px) scale(1.1); /* Monte et grossit */
}

/* Couleurs spécifiques au survol */
.social-icon.github:hover {
    color: #ffffff;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.8);
}


.social-icon.email:hover {
    color: #10b981; /* Vert Cybersécurité */
    text-shadow: 0 0 15px rgba(16, 185, 129, 0.8);
}
/* --- BOUTON SON --- */
.floating-sound-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(15, 23, 42, 0.8);
    border: 2px solid var(--accent);
    color: var(--accent);
    font-size: 1.2rem;
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.3);
    transition: all 0.3s ease;
}

.floating-sound-btn:hover {
    background: var(--accent);
    color: white;
    transform: scale(1.1) rotate(10deg);
    box-shadow: 0 0 25px var(--accent);
}

/* Style quand le son est coupé (ajouté via JS) */
.sound-off {
    border-color: #64748b;
    color: #64748b;
    box-shadow: none;
}
/* --- SIMULATION MATRICIELLE --- */

.matrix-sim-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    background: rgba(0, 0, 0, 0.3);
    padding: 20px;
    border-radius: 15px;
    border: 1px solid #334155;
}

.sim-column {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.sim-column h4 {
    margin: 0;
    color: #94a3b8;
    font-size: 0.9rem;
    text-transform: uppercase;
}

/* Grilles 3x3 miniatures */
.mini-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3px;
    width: 60px;
    height: 60px;
}

.mini-cell {
    width: 100%;
    height: 100%;
    background: #1e293b;
    border-radius: 2px;
}

/* Lumière allumée (Grille B) */
.mini-cell.active {
    background: #ef4444; /* Rouge */
    box-shadow: 0 0 5px #ef4444;
}

/* Solution à cliquer (Grille X) */
.mini-cell.sol-active {
    background: #1e293b;
    border: 2px solid #3b82f6; /* Bordure Bleue */
    box-shadow: 0 0 5px #3b82f6;
    position: relative;
}
/* Petit point blanc au centre pour dire "clique ici" */
.mini-cell.sol-active::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 4px; height: 4px;
    background: white;
    border-radius: 50%;
}

/* Vecteurs Mathématiques [ ] */
.vector-bracket {
    border-left: 2px solid #cbd5e1;
    border-right: 2px solid #cbd5e1;
    border-radius: 8px;
    padding: 5px 10px;
    background: rgba(15, 23, 42, 0.8);
    min-width: 40px;
}

.vector-bracket.result {
    border-color: #3b82f6; /* Bleu pour la solution */
}

.vector-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-family: 'Courier New', monospace;
    font-weight: bold;
    font-size: 1.1rem;
    line-height: 1.4;
}

/* Couleurs des chiffres */
.v-on { color: #fff; text-shadow: 0 0 5px white; }
.v-off { color: #475569; }

/* Opérateur central */
.sim-operator {
    text-align: center;
    color: #64748b;
    font-weight: bold;
}

.math-symbol {
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.arrow-right {
    font-size: 1.5rem;
    color: var(--accent);
}
/* --- STYLES ONGLET & INFO --- */

/* Onglets */
.tab-container {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.tab-btn {
    background: transparent;
    border: 2px solid #334155;
    color: #94a3b8;
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tab-btn:hover { border-color: var(--accent); color: white; }

.tab-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
}

.tab-content.hidden { display: none; }
.tab-content { animation: fadeIn 0.5s ease; }

/* --- SECTION EXPERT (VIOLET) --- */
.algo-section.expert-theme {
    border-color: #a855f7; /* Violet */
    background: rgba(168, 85, 247, 0.05);
}

.mode-expert-header h2 { color: #a855f7; }

.badge.expert {
    background: rgba(168, 85, 247, 0.2);
    color: #a855f7;
    border: 1px solid #a855f7;
}

/* --- VISUALISATION MATRICIELLE 3x3 --- */

.matrix-sim-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    background: rgba(0, 0, 0, 0.3);
    padding: 20px;
    border-radius: 15px;
    border: 1px solid #334155;
}

/* Le conteneur [ ] */
.vector-bracket {
    border-left: 3px solid #cbd5e1;
    border-right: 3px solid #cbd5e1;
    border-radius: 12px;
    padding: 8px;
    background: rgba(15, 23, 42, 0.5);
    margin-top: 10px;
}

.vector-bracket.result { border-color: #3b82f6; }

/* La grille de chiffres 3x3 */
.matrix-3x3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* 3 colonnes obligatoires */
    gap: 5px 12px;
    justify-items: center;
    font-family: 'Courier New', monospace;
    font-weight: bold;
    font-size: 1.2rem;
    line-height: 1;
}

.v-on { color: #fff; text-shadow: 0 0 8px white; }
.v-off { color: #475569; opacity: 0.4; }

/* Mini grilles visuelles */
.mini-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3px;
    width: 70px;
    height: 70px;
    margin: 0 auto;
}

.mini-cell { width: 100%; height: 100%; background: #1e293b; border-radius: 2px; }
.mini-cell.active { background: #ef4444; box-shadow: 0 0 5px #ef4444; }
.mini-cell.sol-active { background: #1e293b; border: 2px solid #3b82f6; box-shadow: 0 0 5px #3b82f6; }

.sim-column { text-align: center; }
.sim-operator { font-size: 1.5rem; color: #64748b; font-weight: bold; }
.math-symbol { font-size: 1rem; margin-bottom: 5px; font-family: monospace; }
/* --- STYLES ONGLET & INFO --- */
.tab-container { display: flex; justify-content: center; gap: 15px; margin-bottom: 20px; }
.tab-btn { background: transparent; border: 2px solid #334155; color: #94a3b8; padding: 10px 20px; border-radius: 30px; font-size: 0.9rem; cursor: pointer; transition: all 0.3s; display: flex; align-items: center; gap: 8px; }
.tab-btn:hover { border-color: var(--accent); color: white; }
.tab-btn.active { background: var(--accent); border-color: var(--accent); color: white; box-shadow: 0 0 15px rgba(59, 130, 246, 0.4); }
.tab-content.hidden { display: none; }
.tab-content { animation: fadeIn 0.5s ease; }

/* --- VISUALISATION MATH --- */
.matrix-sim-container { display: flex; justify-content: center; align-items: flex-start; gap: 20px; flex-wrap: wrap; background: rgba(0, 0, 0, 0.3); padding: 20px; border-radius: 15px; border: 1px solid #334155; }
.sim-column { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.sim-column h4 { margin: 0; color: #94a3b8; font-size: 0.9rem; text-transform: uppercase; }
.vector-bracket { border-left: 3px solid #cbd5e1; border-right: 3px solid #cbd5e1; border-radius: 12px; padding: 5px; background: rgba(15, 23, 42, 0.5); display: inline-block; margin-bottom: 5px; min-height: 80px; min-width: 80px; display: flex; align-items: center; justify-content: center;}
.vector-bracket.result { border-color: #3b82f6; }
.matrix-3x3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 5px 12px; justify-items: center; font-family: 'Courier New', monospace; font-weight: bold; font-size: 1.2rem; line-height: 1; }
.v-on { color: #fff; text-shadow: 0 0 8px white; }
.v-off { color: #475569; opacity: 0.4; }
.mini-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 3px; width: 70px; height: 70px; }
.mini-cell { width: 100%; height: 100%; background: #1e293b; border-radius: 2px; transition: 0.3s; }
.mini-cell.active { background: #ef4444; box-shadow: 0 0 5px #ef4444; }
.mini-cell.sol-active { background: #1e293b; border: 2px solid #3b82f6; box-shadow: 0 0 5px #3b82f6; position: relative; }
.mini-cell.sol-active::after { content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 4px; height: 4px; background: white; border-radius: 50%; }
.sim-operator { text-align: center; color: #64748b; font-weight: bold; align-self: center; }
.math-symbol { font-family: monospace; font-size: 0.9rem; margin: 5px 0; color: #94a3b8; }
.arrow-right { font-size: 1.5rem; color: var(--accent); }

/* --- CONSOLE TERMINAL --- */
.console-box { margin-top: 20px; background: #0f172a; border-radius: 8px; border: 1px solid #334155; font-family: 'Courier New', monospace; overflow: hidden; width: 100%; max-width: 500px; margin-left: auto; margin-right: auto; }
.console-header { background: #1e293b; padding: 5px 10px; display: flex; align-items: center; gap: 5px; border-bottom: 1px solid #334155; font-size: 0.8rem; color: #94a3b8; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.red { background: #ef4444; } .yellow { background: #f59e0b; } .green { background: #10b981; }
.console-content { padding: 10px; color: #10b981; font-size: 0.9rem; min-height: 100px; max-height: 100px; overflow-y: auto; text-align: left; }
.console-content div { margin-bottom: 4px; animation: fadeIn 0.3s; }

/* --- EXPERT THEME --- */
.algo-section.expert-theme { border-color: #a855f7; background: rgba(168, 85, 247, 0.05); }
.mode-expert-header h2 { color: #a855f7; }
.badge.expert { background: rgba(168, 85, 247, 0.2); color: #a855f7; border: 1px solid #a855f7; }

/* Animation pour le bouton Essayer */
@keyframes pulse-btn { 0% { transform: scale(1); } 50% { transform: scale(1.05); } 100% { transform: scale(1); } }
.pulse-anim { animation: pulse-btn 2s infinite; }
/* Couleurs spécifiques au survol */
/* --- BARRE DE RÉSEAUX --- */
.social-links {
    margin-top: 25px;
    display: flex;
    justify-content: center;
    gap: 25px;
}

.social-icon {
    font-size: 2rem;
    color: #64748b;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    text-decoration: none;
    display: inline-block;
}

.social-icon:hover {
    transform: translateY(-5px) scale(1.1);
}

/* Couleurs spécifiques */
.social-icon.github:hover {
    color: #ffffff;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.8);
}

/* CŒUR ROUGE (Correction appliquée) */
.social-icon.support:hover {
    color: #ef4444; /* Rouge Néon */
    text-shadow: 0 0 15px rgba(239, 68, 68, 0.8);
}

.social-icon.email:hover {
    color: #10b981; /* Vert */
    text-shadow: 0 0 15px rgba(16, 185, 129, 0.8);
}