/* style.css - Styles Complets pour Memory Multiverse */
/* Design moderne avec support pour tous les nouveaux systèmes */

/* === VARIABLES CSS GLOBALES === */
:root {
    /* Polices */
    --font-family-main: 'Poppins', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-family-display: 'Orbitron', 'Courier New', monospace;
    
    /* Couleurs de fond */
    --bg-gradient-start: #0a0a0a;
    --bg-gradient-end: #1a1a2e;
    --bg-container: rgba(22, 22, 44, 0.95);
    --bg-header: #16213e;
    --bg-card: rgba(30, 30, 60, 0.9);
    --bg-modal: rgba(0, 0, 0, 0.85);
    --bg-modal-content: #1a1a2e;
    --bg-notification: rgba(16, 21, 46, 0.98);
    
    /* Couleurs de surface */
    --surface-primary: #16213e;
    --surface-secondary: #0f172a;
    --surface-elevated: #1e293b;
    --surface-glass: rgba(255, 255, 255, 0.05);
    
    /* Couleurs néon et accents */
    --neon-cyan: #00ffff;
    --neon-cyan-glow: rgba(0, 255, 255, 0.4);
    --neon-purple: #8b5cf6;
    --neon-purple-glow: rgba(139, 92, 246, 0.4);
    --neon-green: #10b981;
    --neon-green-glow: rgba(16, 185, 129, 0.4);
    --neon-yellow: #fbbf24;
    --neon-yellow-glow: rgba(251, 191, 36, 0.4);
    --neon-red: #ef4444;
    --neon-red-glow: rgba(239, 68, 68, 0.4);
    --neon-pink: #ec4899;
    --neon-pink-glow: rgba(236, 72, 153, 0.4);
    
    /* Couleurs de texte */
    --text-primary: #ffffff;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-accent: var(--neon-cyan);
    --text-success: #10b981;
    --text-warning: #f59e0b;
    --text-error: #ef4444;
    
    /* Couleurs de la bulle de discussion */
    --bg-speech-bubble-start: #ffffff;
    --bg-speech-bubble-end: #f0f9ff;
    --text-speech-bubble: #1e293b;
    --border-speech-bubble: #e2e8f0;
    
    /* Tailles et espacements */
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    --border-radius-xl: 32px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Ombres et effets */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.25);
    --shadow-neon: 0 0 20px currentColor;
    --glow-soft: 0 0 15px rgba(255, 255, 255, 0.1);
    --glow-strong: 0 0 30px currentColor;
    
    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.6s ease-out;
    --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* === RESET ET BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family-main);
    background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Fond animé avec particules */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(0, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 70%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
    z-index: -2;
    animation: backgroundFloat 20s ease-in-out infinite;
}

/* Texture de fond */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.02;
    background: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(255, 255, 255, 0.03) 2px,
            rgba(255, 255, 255, 0.03) 4px
        );
    z-index: -1;
}

/* === CONTENEUR PRINCIPAL === */
.game-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    background: var(--bg-container);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    animation: containerSlideIn 0.8s ease-out;
    min-height: 95vh;
}

/* === HEADER DU JEU === */
.game-header {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-header);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.game-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: shimmer 3s ease-in-out infinite;
}

.game-header > div {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    background: var(--surface-glass);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-normal);
}

.game-header > div:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: var(--glow-soft);
}

/* === INFORMATIONS UTILISATEUR === */
#user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--surface-glass);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--spacing-md);
}

#user-info img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--neon-cyan);
    box-shadow: 0 0 10px var(--neon-cyan-glow);
}

/* === CANVAS DE JEU === */
#gameCanvas {
    display: block;
    width: 100%;
    max-width: 800px;
    height: auto;
    border: 2px solid var(--neon-cyan);
    border-radius: var(--border-radius-md);
    background: radial-gradient(circle, #000814, #001d3d);
    box-shadow: 
        0 0 30px var(--neon-cyan-glow),
        inset 0 0 50px rgba(0, 0, 0, 0.5);
    margin: 0 auto var(--spacing-lg);
    transition: all var(--transition-normal);
}

#gameCanvas:hover {
    box-shadow: 
        0 0 40px var(--neon-cyan-glow),
        inset 0 0 50px rgba(0, 0, 0, 0.5);
    transform: scale(1.02);
}

/* === BOUTONS NÉON === */
.neon-btn {
    position: relative;
    background: transparent;
    border: 2px solid var(--neon-cyan);
    color: var(--neon-cyan);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 16px;
    font-weight: 600;
    font-family: var(--font-family-main);
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    overflow: hidden;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.neon-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-normal);
}

.neon-btn:hover::before {
    left: 100%;
}

.neon-btn:hover:not(:disabled) {
    background: var(--neon-cyan-glow);
    box-shadow: 
        0 0 20px var(--neon-cyan),
        inset 0 0 20px rgba(0, 255, 255, 0.1);
    transform: translateY(-2px);
    text-shadow: 0 0 10px currentColor;
}

.neon-btn:active {
    transform: translateY(0);
    box-shadow: 
        0 0 15px var(--neon-cyan),
        inset 0 0 15px rgba(0, 255, 255, 0.2);
}

.neon-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Variantes de couleurs pour les boutons */
.neon-btn.add-time {
    border-color: var(--neon-green);
    color: var(--neon-green);
}

.neon-btn.add-time:hover:not(:disabled) {
    background: var(--neon-green-glow);
    box-shadow: 0 0 20px var(--neon-green);
}

.neon-btn.remove-pair {
    border-color: var(--neon-yellow);
    color: var(--neon-yellow);
}

.neon-btn.remove-pair:hover:not(:disabled) {
    background: var(--neon-yellow-glow);
    box-shadow: 0 0 20px var(--neon-yellow);
}

.neon-btn.show-pair {
    border-color: var(--neon-purple);
    color: var(--neon-purple);
}

.neon-btn.show-pair:hover:not(:disabled) {
    background: var(--neon-purple-glow);
    box-shadow: 0 0 20px var(--neon-purple);
}

.neon-btn.danger {
    border-color: var(--neon-red);
    color: var(--neon-red);
}

.neon-btn.danger:hover:not(:disabled) {
    background: var(--neon-red-glow);
    box-shadow: 0 0 20px var(--neon-red);
}

/* === POWER-UPS === */
.power-ups {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md);
    background: var(--surface-glass);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* === BARRE DE PROGRESSION === */
.progress-container {
    position: relative;
    height: 24px;
    margin: var(--spacing-md) 0;
    background: var(--surface-secondary);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.3);
}

.level-bar {
    height: 100%;
    min-width: 2%;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
    border-radius: var(--border-radius-xl);
    transition: width 0.5s ease-out;
    box-shadow: 
        0 0 10px var(--neon-cyan-glow),
        inset 0 1px 2px rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.level-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: progressShimmer 2s ease-in-out infinite;
}

.level-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-primary);
    font-weight: 700;
    font-size: 12px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
    z-index: 2;
}

/* === SECTION D'INTRODUCTION === */
.intro-container {
    position: relative;
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    z-index: 10;
    background: var(--surface-glass);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
}

#intro-mascot {
    width: 150px;
    height: auto;
    display: block;
    margin: 0 auto var(--spacing-lg);
    border-radius: 50%;
    border: 3px solid var(--neon-cyan);
    box-shadow: 
        0 0 30px var(--neon-cyan-glow),
        0 8px 32px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transform: scale(0.8) translateY(20px);
    animation: mascotEnter 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s forwards;
}

.speech-bubble {
    position: absolute;
    background: linear-gradient(145deg, var(--bg-speech-bubble-start), var(--bg-speech-bubble-end));
    color: var(--text-speech-bubble);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg) var(--spacing-xl);
    width: 280px;
    max-width: 90%;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.2),
        0 0 0 1px var(--border-speech-bubble);
    text-align: left;
    font-size: 16px;
    line-height: 1.5;
    z-index: 2;
    bottom: 200px;
    left: 50%;
    opacity: 0;
    transform: translate(-50%, 20px) scale(0.95);
    visibility: hidden;
    transition: all var(--transition-normal);
}

.speech-bubble:not(.hidden) {
    animation: speechBubbleEnter 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.5s forwards;
}

.speech-bubble::after {
    content: '';
    position: absolute;
    border-style: solid;
    border-width: 15px 15px 0 15px;
    border-color: var(--bg-speech-bubble-start) transparent transparent transparent;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.15));
}

.speech-bubble p {
    margin: 0;
    opacity: 0;
    transform: translateY(10px);
}

.speech-bubble:not(.hidden) p {
    animation: speechTextFadeIn 0.5s ease-out 1.2s forwards;
}

/* === SECTION DE DÉMARRAGE === */
.start-container {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--surface-glass);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    margin: var(--spacing-lg) 0;
}

#startBtn {
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: var(--border-radius-md);
    min-width: 200px;
}

/* === MESSAGES DE SAUVEGARDE === */
#save-message {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-notification);
    border-radius: var(--border-radius-md);
    border: 1px solid currentColor;
    font-weight: 600;
    text-align: center;
    opacity: 0;
    transform: translateX(100%);
    transition: all var(--transition-normal);
    z-index: 1000;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
}

#save-message.active {
    opacity: 1;
    transform: translateX(0);
}

/* === MODALES === */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(10px);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal:not(.hidden) {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-modal-content);
    color: var(--text-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-lg);
    transform: scale(0.9) translateY(20px);
    transition: all var(--transition-normal);
}

.modal:not(.hidden) .modal-content {
    transform: scale(1) translateY(0);
}

.close-btn {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.close-btn:hover {
    background: var(--surface-elevated);
    color: var(--text-primary);
    transform: scale(1.1);
}

/* === LISTES ET CONTENU === */
#leaderboardList,
#completedLevelsList {
    list-style: none;
    padding: 0;
    margin-top: var(--spacing-lg);
    max-height: 400px;
    overflow-y: auto;
}

#leaderboardList li,
.world-completed-entry {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background: var(--surface-glass);
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-fast);
}

#leaderboardList li:hover,
.world-completed-entry:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(4px);
}

.world-completed-entry h4 {
    color: var(--neon-cyan);
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.world-completed-entry p {
    margin: var(--spacing-xs) 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* === NOTIFICATIONS ET TOASTS === */
.notification-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: 350px;
}

.toast {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-notification);
    border-radius: var(--border-radius-md);
    border-left: 4px solid var(--neon-cyan);
    color: var(--text-primary);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(20px);
    transform: translateX(100%);
    opacity: 0;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast.success {
    border-left-color: var(--neon-green);
}

.toast.warning {
    border-left-color: var(--neon-yellow);
}

.toast.error {
    border-left-color: var(--neon-red);
}

/* === EFFETS D'EXPLOSION === */
.explosion-effect {
    position: absolute;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
    pointer-events: none;
    z-index: 100;
    background: radial-gradient(circle, #ffd700, #ff6b35, #ff006e);
    box-shadow: 
        0 0 20px #ffd700,
        0 0 40px #ff6b35,
        0 0 60px #ff006e;
}

.explosion-effect.active {
    animation: explode 0.6s ease-out forwards;
}

/* === SYSTÈME D'ACHIEVEMENTS === */
.achievement-notification {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    background: var(--bg-modal-content);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--neon-yellow);
    box-shadow: 
        0 0 50px var(--neon-yellow-glow),
        var(--shadow-lg);
    text-align: center;
    z-index: 10001;
    backdrop-filter: blur(20px);
    min-width: 300px;
}

.achievement-notification.show {
    animation: achievementPop 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
}

.achievement-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    filter: drop-shadow(0 0 10px currentColor);
}

.achievement-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--neon-yellow);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 0 10px currentColor;
}

.achievement-description {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.achievement-points {
    color: var(--neon-cyan);
    font-weight: 600;
    font-size: 1.1rem;
}

/* === ANALYTICS ET DEBUG === */
.debug-panel {
    position: fixed;
    bottom: var(--spacing-md);
    left: var(--spacing-md);
    background: rgba(0, 0, 0, 0.9);
    color: var(--neon-green);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 12px;
    max-width: 300px;
    z-index: 9998;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.debug-panel:hover {
    opacity: 1;
}

.fps-counter {
    color: var(--neon-cyan);
    font-weight: 600;
}

.memory-usage {
    color: var(--neon-yellow);
}

/* === ANIMATIONS === */
@keyframes backgroundFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(120deg); }
    66% { transform: translate(-20px, 20px) rotate(240deg); }
}

@keyframes containerSlideIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

@keyframes progressShimmer {
    0% { left: -100%; }
    50% { left: 100%; }
    100% { left: 100%; }
}

@keyframes mascotEnter {
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes speechBubbleEnter {
    to {
        opacity: 1;
        transform: translate(-50%, 0) scale(1);
        visibility: visible;
    }
}

@keyframes speechTextFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes explode {
    0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 1;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.8;
    }
    100% {
        transform: translate(-50%, -50%) scale(2);
        opacity: 0;
    }
}

@keyframes achievementPop {
    0% {
        transform: translate(-50%, -50%) scale(0) rotate(-180deg);
        opacity: 0;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(1) rotate(0deg);
        opacity: 1;
    }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px currentColor; }
    50% { box-shadow: 0 0 20px currentColor; }
}

@keyframes rotateHue {
    0% { filter: hue-rotate(0deg); }
    100% { filter: hue-rotate(360deg); }
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 1024px) {
    .game-container {
        max-width: 95%;
        padding: var(--spacing-md);
    }
    
    .game-header {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: var(--spacing-sm);
    }
    
    #gameCanvas {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 16px;
        --spacing-xl: 24px;
        --spacing-2xl: 32px;
    }
    
    .game-container {
        padding: var(--spacing-sm);
        margin: var(--spacing-sm);
        border-radius: var(--border-radius-md);
        min-height: auto;
    }
    
    .game-header {
        grid-template-columns: repeat(2, 1fr);
        padding: var(--spacing-sm);
        gap: var(--spacing-xs);
    }
    
    .game-header > div {
        padding: var(--spacing-xs);
        font-size: 14px;
    }
    
    .power-ups {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .power-ups .neon-btn {
        width: 100%;
        padding: var(--spacing-sm);
        font-size: 14px;
    }
    
    #intro-mascot {
        width: 120px;
    }
    
    .speech-bubble {
        width: 95%;
        padding: var(--spacing-md);
        font-size: 14px;
        bottom: 140px;
    }
    
    .modal-content {
        width: 95%;
        padding: var(--spacing-lg);
        margin: var(--spacing-sm);
    }
    
    #save-message {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
        left: var(--spacing-sm);
        transform: translateY(-100%);
        min-width: auto;
    }
    
    #save-message.active {
        transform: translateY(0);
    }
    
    .notification-container {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
        left: var(--spacing-sm);
        max-width: none;
    }
    
    .achievement-notification {
        width: 90%;
        min-width: auto;
        padding: var(--spacing-lg);
    }
    
    .achievement-icon {
        font-size: 3rem;
    }
    
    .achievement-title {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .game-container {
        padding: var(--spacing-xs);
        margin: var(--spacing-xs);
    }
    
    .game-header {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .neon-btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 12px;
        letter-spacing: 0.5px;
    }
    
    #intro-mascot {
        width: 100px;
    }
    
    .speech-bubble {
        font-size: 13px;
        padding: var(--spacing-sm) var(--spacing-md);
        bottom: 120px;
    }
    
    #startBtn {
        font-size: 1rem;
        padding: var(--spacing-sm) var(--spacing-lg);
        min-width: 160px;
    }
    
    .debug-panel {
        bottom: var(--spacing-xs);
        left: var(--spacing-xs);
        right: var(--spacing-xs);
        max-width: none;
        font-size: 10px;
    }
}

/* === THÈMES ET VARIANTES === */
.theme-dark {
    --bg-gradient-start: #000000;
    --bg-gradient-end: #1a1a1a;
    --bg-container: rgba(10, 10, 20, 0.95);
}

.theme-space {
    --bg-gradient-start: #0c0c2e;
    --bg-gradient-end: #1a1a4a;
    --neon-cyan: #00d4ff;
    --neon-purple: #b968ff;
}

.theme-nature {
    --bg-gradient-start: #0a2e0a;
    --bg-gradient-end: #1a4a1a;
    --neon-cyan: #00ff80;
    --neon-purple: #80ff00;
}

/* === MODES D'ACCESSIBILITÉ === */
.high-contrast {
    --bg-gradient-start: #000000;
    --bg-gradient-end: #000000;
    --text-primary: #ffffff;
    --neon-cyan: #ffffff;
    --neon-yellow: #ffff00;
    --neon-red: #ff0000;
    --neon-green: #00ff00;
}

.reduced-motion {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* === PRÉFÉRENCES SYSTÈME === */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    body::before {
        animation: none;
    }
}

@media (prefers-color-scheme: light) {
    .auto-theme {
        --bg-gradient-start: #f8fafc;
        --bg-gradient-end: #e2e8f0;
        --bg-container: rgba(255, 255, 255, 0.95);
        --text-primary: #1e293b;
        --text-secondary: #475569;
        --surface-glass: rgba(0, 0, 0, 0.05);
    }
}

@media (prefers-contrast: high) {
    .auto-contrast {
        --bg-gradient-start: #000000;
        --bg-gradient-end: #000000;
        --text-primary: #ffffff;
        --neon-cyan: #ffffff;
        border-width: 3px !important;
    }
}

/* === ÉTATS DE CHARGEMENT === */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--neon-cyan);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* === MASQUAGE ET UTILITAIRES === */
.hidden {
    display: none !important;
}

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* === FOCUS ET NAVIGATION CLAVIER === */
.neon-btn:focus,
.close-btn:focus,
button:focus {
    outline: 2px solid var(--neon-cyan);
    outline-offset: 2px;
}

.modal:focus-within {
    outline: none;
}

/* === IMPRESSION === */
@media print {
    .game-container {
        background: white;
        color: black;
        box-shadow: none;
        border: 1px solid black;
    }
    
    .neon-btn,
    #gameCanvas,
    .explosion-effect,
    .notification-container,
    .debug-panel {
        display: none;
    }
    
    .speech-bubble {
        background: white;
        color: black;
        border: 1px solid black;
    }
}

/* === SCROLLBARS PERSONNALISÉES === */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--surface-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--neon-cyan);
    border-radius: 4px;
    opacity: 0.7;
}

::-webkit-scrollbar-thumb:hover {
    opacity: 1;
    box-shadow: 0 0 10px var(--neon-cyan-glow);
}

/* === SÉLECTION DE TEXTE === */
::selection {
    background: var(--neon-cyan-glow);
    color: var(--text-primary);
}

::-moz-selection {
    background: var(--neon-cyan-glow);
    color: var(--text-primary);
}

/* === PERFORMANCES === */
.will-change-transform {
    will-change: transform;
}

.will-change-opacity {
    will-change: opacity;
}

.gpu-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* === COMPATIBILITÉ NAVIGATEURS === */
@supports not (backdrop-filter: blur(10px)) {
    .game-container,
    .modal,
    .speech-bubble,
    .neon-btn {
        background: var(--bg-container);
    }
}

@supports not (display: grid) {
    .game-header {
        display: flex;
        flex-wrap: wrap;
    }
}

/* === FIN DU FICHIER === */