/* ============================================
   AP Annotator - Variables CED-IT
   Charte graphique : https://ced-it.com/
   Date : 27 janvier 2026
   ============================================ */

:root {
    /* ========== COULEURS PRINCIPALES ========== */
    --primary-color: #00C6FF;
    --primary-hover: #00A8DB;
    --primary-light: #33D4FF;
    --primary-dark: #0084C7;
    
    --secondary-color: #FF5A5F;
    --secondary-hover: #E54A4F;
    --secondary-light: #FF7A7E;
    
    --accent-color: #00ED64;
    --accent-hover: #00C854;
    
    /* ========== COULEURS DE FOND ========== */
    --background-dark: #0A0D17;
    --background-card: #152238;
    --background-card-alt: #192841;
    --background-hover: #1F2F4A;
    --background-active: #253A56;
    
    /* ========== COULEURS DE TEXTE ========== */
    --text-primary: #FFFFFF;
    --text-secondary: #B8C6DB;
    --text-tertiary: #8A9DB5;
    --text-dark: #0A0D17;
    --text-disabled: #5A6B7F;
    
    /* ========== COULEURS D'ÉTAT ========== */
    --success: #00ED64;
    --success-bg: rgba(0, 237, 100, 0.1);
    --warning: #FFB84D;
    --warning-bg: rgba(255, 184, 77, 0.1);
    --error: #FF5A5F;
    --error-bg: rgba(255, 90, 95, 0.1);
    --info: #00C6FF;
    --info-bg: rgba(0, 198, 255, 0.1);
    
    /* ========== BORDURES ========== */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-color-hover: rgba(255, 255, 255, 0.2);
    --border-color-focus: #00C6FF;
    
    /* ========== TYPOGRAPHIE ========== */
    --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', 
                    'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --font-size-h1: 48px;
    --font-size-h2: 36px;
    --font-size-h3: 28px;
    --font-size-h4: 24px;
    --font-size-h5: 20px;
    --font-size-h6: 18px;
    
    --font-size-base: 16px;
    --font-size-small: 14px;
    --font-size-tiny: 12px;
    --font-size-button: 16px;
    
    --letter-spacing: 0.5px;
    --line-height-base: 1.6;
    --line-height-tight: 1.3;
    --line-height-heading: 1.2;
    
    /* ========== ESPACEMENTS ========== */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    
    /* ========== BORDER RADIUS ========== */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* ========== OMBRES ========== */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.35);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.45);
    --shadow-glow: 0 0 20px rgba(0, 198, 255, 0.3);
    --shadow-glow-strong: 0 0 30px rgba(0, 198, 255, 0.5);
    
    /* ========== TRANSITIONS ========== */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* ========== OPACITÉS ========== */
    --opacity-disabled: 0.5;
    --opacity-hover: 0.8;
    --opacity-subtle: 0.6;
    
    /* ========== Z-INDEX ========== */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    
    /* ========== LAYOUT ========== */
    --container-max-width: 1200px;
    --sidebar-width: 320px;
    --toolbar-height: 60px;
    --header-height: 70px;
    
    /* ========== BREAKPOINTS ========== */
    --breakpoint-mobile: 480px;
    --breakpoint-tablet: 768px;
    --breakpoint-desktop: 1024px;
    --breakpoint-wide: 1440px;
}

/* ========== GRADIENTS ========== */
:root {
    --gradient-primary: linear-gradient(135deg, #00C6FF 0%, #0084FF 100%);
    --gradient-secondary: linear-gradient(135deg, #FF5A5F 0%, #E54A4F 100%);
    --gradient-accent: linear-gradient(135deg, #00ED64 0%, #00C854 100%);
    --gradient-dark: linear-gradient(180deg, #152238 0%, #0A0D17 100%);
}

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

@keyframes slideIn {
    from {
        transform: translateX(-20px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(0, 198, 255, 0.3);
    }
    50% {
        box-shadow: 0 0 20px rgba(0, 198, 255, 0.6);
    }
}