/**
 * Design System CSS
 * Système unifié de design pour le CV Gaming
 * Version: 2.0
 * Date: 2025-11-02
 */

/* ==============================================
   VARIABLES CSS (Design Tokens)
   ============================================== */
:root {
    /* Spacing System (8px base) */
    --space-xs: 0.25rem;   /* 4px */
    --space-sm: 0.5rem;    /* 8px */
    --space-md: 1rem;      /* 16px */
    --space-lg: 1.5rem;    /* 24px */
    --space-xl: 2rem;      /* 32px */
    --space-2xl: 3rem;     /* 48px */
    
    /* Z-Index Scale (Organized hierarchy) */
    --z-base: 1;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;        /* Header buttons */
    --z-modal-backdrop: 1040; /* Overlay backgrounds */
    --z-modal: 1050;        /* Main modals (color-picker, theater, mini-game) */
    --z-popover: 1060;      /* Tamagotchi menu, tooltips */
    --z-tooltip: 1070;      /* Top-level tooltips */
    --z-notification: 1080; /* Game notifications */
    
    /* Legacy z-index values for gradual migration */
    /* Old value: 10000 → New: 1050 (modal) */
    /* Old value: 10001 → New: 1080 (notification) */
    /* Old value: 10005 → New: 1070 (tooltip) */
    /* Old value: 20001+ → New: Shop uses 1050 (modal level) */
    
    /* Layout */
    --header-height: 4rem;
    --header-padding: var(--space-lg);
    
    /* Colors (already defined in main) */
    /* Keeping existing variables from main CSS */
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

/* ==============================================
   HEADER ACTIONS BAR (Unified Button System)
   ============================================== */

.header-actions {
    position: fixed;
    top: var(--header-padding);
    right: var(--header-padding);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    z-index: var(--z-fixed);
    transition: all var(--transition-base);
}

.header-btn {
    width: 40px;
    height: 40px;
    background: rgba(30, 41, 59, 0.15);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(148, 163, 184, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    color: var(--text-secondary);
    font-size: 1.2rem;
}

.header-btn:hover {
    background: rgba(30, 41, 59, 0.25);
    border-color: var(--primary);
    transform: scale(1.1);
}

/* Game Toggle Specific */
.game-toggle {
    background: rgba(139, 92, 246, 0.1);
    border-color: rgba(139, 92, 246, 0.2);
    color: var(--accent);
    display: none; /* Hidden by default */
    opacity: 0;
    transform: scale(0.8);
}

.game-toggle.unlocked {
    display: flex;
    animation: unlockAnimation 0.8s ease forwards;
}

.game-toggle:hover {
    background: rgba(139, 92, 246, 0.2);
}

/* Color Picker Specific */
.color-picker-trigger i {
    font-size: 1rem;
}

/* Language Switch Specific */
.lang-switch {
    background: rgba(30, 41, 59, 0.15);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 0.3rem;
    display: flex;
    gap: 0.3rem;
    border: 1px solid rgba(148, 163, 184, 0.1);
    width: auto;
    height: auto;
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-full); /* Cercle parfait */
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-base);
    font-size: 0.8rem;
    min-width: 36px;
    text-align: center;
}

.lang-btn.active {
    background: rgba(6, 182, 212, 0.2);
    color: var(--primary);
    box-shadow: 0 0 10px rgba(6, 182, 212, 0.3);
}

.lang-btn:hover:not(.active) {
    background: rgba(148, 163, 184, 0.1);
}

/* ==============================================
   RESPONSIVE ADJUSTMENTS
   ============================================== */

@media (max-width: 968px) {
    .header-actions {
        top: var(--space-md);
        right: var(--space-md);
        gap: var(--space-xs);
    }
    
    .header-btn {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }
    
    .lang-switch {
        padding: 0.25rem;
    }
    
    .lang-btn {
        padding: 0.3rem 0.6rem;
        font-size: 0.75rem;
        min-width: 32px;
    }
}

@media (max-width: 640px) {
    .header-actions {
        top: var(--space-sm);
        right: var(--space-sm);
        gap: 0.25rem;
    }
    
    .header-btn {
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }
}

/* ==============================================
   UNLOCK ANIMATION
   ============================================== */

@keyframes unlockAnimation {
    0% {
        opacity: 0;
        transform: scale(0.8) translateY(-10px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* ==============================================
   TAMAGOTCHI CONTEXT MENU
   ============================================== */

.tama-context-menu {
    position: fixed;
    bottom: 110px; /* Au-dessus du Tamagotchi */
    right: 20px;
    background: rgba(30, 41, 59, 0.98);
    backdrop-filter: blur(20px);
    border: 2px solid rgba(6, 182, 212, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--space-sm);
    z-index: var(--z-popover);
    box-shadow: var(--shadow-xl);
    min-width: 180px;
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    transition: all var(--transition-base);
}

.tama-context-menu.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
    display: block !important;
}

.tama-menu-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: #e2e8f0;
    font-size: 0.95rem;
    font-weight: 500;
}

.tama-menu-item:hover {
    background: rgba(6, 182, 212, 0.15);
    transform: translateX(-3px);
}

.tama-menu-icon {
    font-size: 1.4rem;
    width: 28px;
    text-align: center;
}

.tama-menu-text {
    flex: 1;
}

/* Responsive Tamagotchi Menu */
@media (max-width: 968px) {
    .tama-context-menu {
        bottom: 90px;
        right: 15px;
        min-width: 160px;
    }
    
    .tama-menu-item {
        padding: var(--space-sm);
        font-size: 0.9rem;
    }
    
    .tama-menu-icon {
        font-size: 1.2rem;
        width: 24px;
    }
}

/* ==============================================
   FOOTER VERSION INFO
   ============================================== */

.cv-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    padding: var(--space-sm) var(--space-md);
    z-index: var(--z-base);
    transition: all var(--transition-base);
}

.version-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-size: 0.75rem;
    color: #64748b;
    font-family: 'Fira Code', monospace;
}

.version-number {
    color: var(--primary);
    font-weight: 600;
    background: rgba(6, 182, 212, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.version-separator {
    color: #475569;
}

.last-update {
    color: #94a3b8;
}

#lastUpdate {
    color: #cbd5e1;
    font-weight: 500;
}

/* Footer responsive */
@media (max-width: 640px) {
    .cv-footer {
        padding: var(--space-xs) var(--space-sm);
    }
    
    .version-info {
        font-size: 0.7rem;
        gap: 0.25rem;
    }
    
    .version-number {
        padding: 0.2rem 0.4rem;
    }
}