/* ========================================
   VARIABILI CSS - LINEARITY TRADING
   Gestione centralizzata di colori e temi
   ======================================== */

:root {
    /* ============ TEMA SCURO (Default) ============ */
    
    /* Colori Primari - Ispirato all'oro elegante */
    --primary-color: #C8A25E;
    --primary-color-alpha: rgba(200, 162, 94, 0.2);
    --primary-hover: #D4AF37;
    --primary-light: #E5D4A6;
    --primary-dark: #8B7355;
    
    /* Colori Secondari */
    --secondary-color: #8B7355;
    --secondary-hover: #A0866F;
    --secondary-light: #B39A7E;
    
    /* Colori Accent */
    --accent-color: #D4AF37;
    --accent-hover: #E5C158;
    --accent-light: #F0D98E;
    
    /* Sfondo - Toni scuri eleganti */
    --bg-primary: #1A1A1A;
    --bg-secondary: #242424;
    --bg-tertiary: #2E2E2E;
    --bg-card: #2A2A2A;
    --bg-card-hover: #323232;
    
    /* Overlay e Modal */
    --overlay-bg: rgba(0, 0, 0, 0.85);
    --modal-bg: #2A2A2A;
    
    /* Testo */
    --text-primary: #FFFFFF;
    --text-secondary: #E0E0E0;
    --text-muted: #A0A0A0;
    --text-disabled: #707070;
    
    /* Bordi */
    --border-color: #3A3A3A;
    --border-light: #4A4A4A;
    --border-focus: var(--primary-color);
    
    /* Gradienti - Oro elegante */
    --gradient-primary: linear-gradient(135deg, #C8A25E 0%, #D4AF37 100%);
    --gradient-secondary: linear-gradient(135deg, #8B7355 0%, #C8A25E 100%);
    --gradient-accent: linear-gradient(135deg, #D4AF37 0%, #E5C158 100%);
    
    /* Gradienti di sfondo decorativi */
    --gradient-bg-1: radial-gradient(circle at 20% 50%, rgba(200, 162, 94, 0.15) 0%, transparent 50%);
    --gradient-bg-2: radial-gradient(circle at 80% 80%, rgba(212, 175, 55, 0.12) 0%, transparent 50%);
    --gradient-bg-3: radial-gradient(circle at 50% 20%, rgba(139, 115, 85, 0.1) 0%, transparent 50%);
    
    /* Stati - Success, Warning, Error */
    --success-color: #4CAF50;
    --success-light: #81C784;
    --warning-color: #FF9800;
    --warning-light: #FFB74D;
    --error-color: #F44336;
    --error-light: #E57373;
    --info-color: #2196F3;
    --info-light: #64B5F6;
    
    /* Risk Levels */
    --risk-low: #4CAF50;
    --risk-medium: #FF9800;
    --risk-high: #F44336;
    
    /* Ombre */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.6);
    
    /* Ombre con colori primari */
    --shadow-primary: 0 4px 20px rgba(200, 162, 94, 0.3);
    --shadow-accent: 0 4px 20px rgba(212, 175, 55, 0.4);
    
    /* Transizioni */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-round: 50%;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    
    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    
    /* Z-Index Layers */
    --z-negative: -1;
    --z-base: 0;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
}

/* ============ TEMA CHIARO ============ */
body.theme-light {
    /* Colori Primari - Versione chiara */
    --primary-color: #8B7355;
    --primary-hover: #A0866F;
    --primary-light: #B39A7E;
    --primary-dark: #6B5844;
    
    /* Colori Secondari */
    --secondary-color: #C8A25E;
    --secondary-hover: #D4AF37;
    --secondary-light: #E5C99D;
    
    /* Colori Accent */
    --accent-color: #B8935E;
    --accent-hover: #C8A25E;
    --accent-light: #D8B87E;
    
    /* Sfondo - Toni chiari eleganti */
    --bg-primary: #F8F6F3;
    --bg-secondary: #FFFFFF;
    --bg-tertiary: #F0EDE8;
    --bg-card: #FFFFFF;
    --bg-card-hover: #F8F6F3;
    
    /* Overlay e Modal */
    --overlay-bg: rgba(0, 0, 0, 0.5);
    --modal-bg: #FFFFFF;
    
    /* Testo */
    --text-primary: #1A1A1A;
    --text-secondary: #4A4A4A;
    --text-muted: #707070;
    --text-disabled: #A0A0A0;
    
    /* Bordi */
    --border-color: #E0E0E0;
    --border-light: #F0F0F0;
    --border-focus: var(--primary-color);
    
    /* Gradienti - Versione chiara */
    --gradient-primary: linear-gradient(135deg, #B39A7E 0%, #8B7355 100%);
    --gradient-secondary: linear-gradient(135deg, #E5C99D 0%, #C8A25E 100%);
    --gradient-accent: linear-gradient(135deg, #C8A25E 0%, #B8935E 100%);
    
    /* Gradienti di sfondo decorativi */
    --gradient-bg-1: radial-gradient(circle at 20% 50%, rgba(139, 115, 85, 0.08) 0%, transparent 50%);
    --gradient-bg-2: radial-gradient(circle at 80% 80%, rgba(200, 162, 94, 0.06) 0%, transparent 50%);
    --gradient-bg-3: radial-gradient(circle at 50% 20%, rgba(184, 147, 94, 0.05) 0%, transparent 50%);
    
    /* Ombre - Più leggere */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.18);
    
    /* Ombre con colori primari */
    --shadow-primary: 0 4px 20px rgba(139, 115, 85, 0.2);
    --shadow-accent: 0 4px 20px rgba(200, 162, 94, 0.25);
}

/* ============ MEDIA QUERIES - Responsive Variables ============ */

/* Tablet */
@media (max-width: 768px) {
    :root {
        --text-5xl: 2.5rem;
        --text-4xl: 2rem;
        --text-3xl: 1.75rem;
        --spacing-xl: 2.5rem;
        --spacing-xxl: 3rem;
    }
}

/* Mobile */
@media (max-width: 480px) {
    :root {
        --text-5xl: 2rem;
        --text-4xl: 1.75rem;
        --text-3xl: 1.5rem;
        --spacing-xl: 2rem;
        --spacing-xxl: 2.5rem;
    }
}

/* ============ UTILITY CLASSES per Debug ============ */
body.debug-mode {
    --debug-border: 1px solid red;
}

body.debug-mode * {
    outline: var(--debug-border);
}