/**
 * DESIGN SYSTEM AMÉLIORÉ - Variables CSS
 * Template Artisan Optimisé v2.0
 * Mobile-first responsive design avec améliorations esthétiques modernes
 */

:root {
    /* === COULEURS PRINCIPALES AMÉLIORÉES === */
    --primary: #1E88E5;
    --primary-dark: #1565C0;
    --primary-light: #42A5F5;
    --primary-lighter: #64B5F6;
    --primary-gradient: linear-gradient(135deg, #1E88E5 0%, #1565C0 100%);
    --primary-gradient-soft: linear-gradient(135deg, rgba(30, 136, 229, 0.1) 0%, rgba(21, 101, 192, 0.05) 100%);
    
    --secondary: #FF6F00;
    --secondary-dark: #E65100;
    --secondary-light: #FF8F00;
    --secondary-lighter: #FFA726;
    --secondary-gradient: linear-gradient(135deg, #FF6F00 0%, #E65100 100%);
    
    --success: #00C853;
    --success-dark: #00A541;
    --success-light: #69F0AE;
    --success-gradient: linear-gradient(135deg, #00C853 0%, #00A541 100%);
    
    --danger: #D32F2F;
    --danger-dark: #C62828;
    --danger-light: #EF5350;
    --danger-gradient: linear-gradient(135deg, #D32F2F 0%, #C62828 100%);
    
    --warning: #FFA000;
    --warning-dark: #FF8F00;
    --warning-light: #FFB300;
    
    --info: #0288D1;
    --info-dark: #0277BD;
    --info-light: #03A9F4;
    
    /* === COULEURS NEUTRES MODERNES === */
    --dark: #212121;
    --dark-light: #424242;
    --dark-lighter: #616161;
    --gray: #757575;
    --gray-light: #BDBDBD;
    --gray-lighter: #E0E0E0;
    --light: #FAFAFA;
    --light-dark: #F5F5F5;
    --white: #FFFFFF;
    
    /* === COULEURS FONCTIONNELLES === */
    --text-primary: var(--dark);
    --text-secondary: var(--gray);
    --text-muted: var(--gray-light);
    --text-white: var(--white);
    
    --bg-primary: var(--white);
    --bg-secondary: var(--light);
    --bg-tertiary: #F9FAFB;
    --bg-dark: var(--dark);
    --bg-gradient: linear-gradient(180deg, #FFFFFF 0%, #FAFAFA 100%);
    
    --border-color: #E5E7EB;
    --border-light: #F3F4F6;
    --border-dark: #D1D5DB;
    
    /* === GRADIENTS DÉCORATIFS === */
    --gradient-blue: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
    --gradient-sunset: linear-gradient(135deg, #F093FB 0%, #F5576C 100%);
    --gradient-ocean: linear-gradient(135deg, #4FACFE 0%, #00F2FE 100%);
    --gradient-forest: linear-gradient(135deg, #43E97B 0%, #38F9D7 100%);
    
    /* === OVERLAYS === */
    --overlay-light: rgba(255, 255, 255, 0.95);
    --overlay-dark: rgba(33, 33, 33, 0.9);
    --overlay-gradient: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.7) 100%);
    
    /* === TYPOGRAPHIE === */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-secondary: Georgia, 'Times New Roman', serif;
    --font-mono: 'SF Mono', 'Monaco', 'Courier New', Courier, monospace;
    
    /* Tailles de police (mobile-first) */
    --text-xs: 0.75rem;      /* 12px */
    --text-sm: 0.875rem;     /* 14px */
    --text-base: 1rem;       /* 16px */
    --text-lg: 1.125rem;     /* 18px */
    --text-xl: 1.25rem;      /* 20px */
    --text-2xl: 1.5rem;      /* 24px */
    --text-3xl: 1.875rem;    /* 30px */
    --text-4xl: 2.25rem;     /* 36px */
    --text-5xl: 3rem;        /* 48px */
    --text-6xl: 3.75rem;     /* 60px */
    
    /* Épaisseurs de police */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    --font-black: 900;
    
    /* Hauteurs de ligne */
    --leading-none: 1;
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;
    
    /* === ESPACEMENTS === */
    --spacing-0: 0;
    --spacing-1: 0.25rem;    /* 4px */
    --spacing-2: 0.5rem;     /* 8px */
    --spacing-3: 0.75rem;    /* 12px */
    --spacing-4: 1rem;       /* 16px */
    --spacing-5: 1.25rem;    /* 20px */
    --spacing-6: 1.5rem;     /* 24px */
    --spacing-8: 2rem;       /* 32px */
    --spacing-10: 2.5rem;    /* 40px */
    --spacing-12: 3rem;      /* 48px */
    --spacing-16: 4rem;      /* 64px */
    --spacing-20: 5rem;      /* 80px */
    --spacing-24: 6rem;      /* 96px */
    --spacing-32: 8rem;      /* 128px */
    
    /* === BORDURES AMÉLIORÉES === */
    --border-width: 1px;
    --border-width-2: 2px;
    --border-width-4: 4px;
    
    --border-radius-sm: 0.375rem;   /* 6px */
    --border-radius: 0.5rem;        /* 8px */
    --border-radius-md: 0.75rem;    /* 12px */
    --border-radius-lg: 1rem;       /* 16px */
    --border-radius-xl: 1.5rem;     /* 24px */
    --border-radius-2xl: 2rem;      /* 32px */
    --border-radius-full: 9999px;
    
    /* === OMBRES MODERNES === */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    --shadow-sm: 0 2px 4px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-2xl: 0 35px 60px -15px rgba(0, 0, 0, 0.3);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    
    /* Ombres colorées */
    --shadow-primary: 0 10px 25px -5px rgba(30, 136, 229, 0.3);
    --shadow-secondary: 0 10px 25px -5px rgba(255, 111, 0, 0.3);
    --shadow-success: 0 10px 25px -5px rgba(0, 200, 83, 0.3);
    
    /* === TRANSITIONS AMÉLIORÉES === */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* === Z-INDEX === */
    --z-base: 1;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    
    /* === CONTENEUR === */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1536px;
    --container-padding: var(--spacing-4);
    
    /* === ANIMATIONS === */
    --animate-spin: spin 1s linear infinite;
    --animate-ping: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite;
    --animate-pulse: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
    --animate-bounce: bounce 1s infinite;
    --animate-fade-in: fadeIn 0.5s ease-in;
    --animate-slide-in-up: slideInUp 0.5s ease-out;
    --animate-slide-in-down: slideInDown 0.5s ease-out;
    --animate-scale-in: scaleIn 0.3s ease-out;
}

/* === KEYFRAMES === */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes ping {
    75%, 100% {
        transform: scale(2);
        opacity: 0;
    }
}

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

@keyframes pulseGlow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(30, 136, 229, 0.4);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 30px rgba(30, 136, 229, 0.6);
        transform: scale(1.02);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(-25%);
        animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
    }
    50% {
        transform: translateY(0);
        animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
    }
}

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

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

@keyframes slideInDown {
    from {
        transform: translateY(-30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes scaleIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* === VARIABLES DESKTOP === */
@media (min-width: 768px) {
    :root {
        /* Augmenter légèrement les tailles sur desktop */
        --text-base: 1.0625rem;   /* 17px */
        --text-lg: 1.1875rem;     /* 19px */
        --text-xl: 1.375rem;      /* 22px */
        --text-2xl: 1.625rem;     /* 26px */
        --text-3xl: 2rem;         /* 32px */
        --text-4xl: 2.5rem;       /* 40px */
        --text-5xl: 3.5rem;       /* 56px */
        --text-6xl: 4.5rem;       /* 72px */
        
        --container-padding: var(--spacing-6);
    }
}

/* === GLASSMORPHISM === */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.glass-dark {
    background: rgba(33, 33, 33, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* === MODE SOMBRE (optionnel) === */
@media (prefers-color-scheme: dark) {
    :root {
        /* Désactivé par défaut, peut être activé si besoin */
        /* --bg-primary: var(--dark);
        --bg-secondary: #1A1A1A;
        --text-primary: var(--white);
        --border-color: #2A2A2A; */
    }
}

/* === IMPRESSION === */
@media print {
    :root {
        --primary: #000000;
        --secondary: #000000;
        --text-primary: #000000;
        --bg-primary: #FFFFFF;
    }
    
    * {
        box-shadow: none !important;
        text-shadow: none !important;
    }
}