/**
 * CSS Variables - Design System
 * 
 * Chỉ khai báo biến, KHÔNG gán vào element
 * Có thể override bởi child theme hoặc Elementor
 */

:root {
    /* ===========================
       COLOR SYSTEM
       =========================== */
    
    /* Primary Colors */
    --woo-color-primary: #2563eb;
    --woo-color-primary-dark: #1e40af;
    --woo-color-primary-light: #60a5fa;
    
    /* Secondary Colors */
    --woo-color-secondary: #7c3aed;
    --woo-color-secondary-dark: #5b21b6;
    --woo-color-secondary-light: #a78bfa;
    
    /* Accent Colors */
    --woo-color-accent: #f59e0b;
    --woo-color-accent-dark: #d97706;
    --woo-color-accent-light: #fbbf24;
    
    /* CTA Button Color */
    --woo-color-cta: #F5A623;
    --woo-color-cta-dark: #E89512;
    --woo-color-cta-light: #F7B547;
    
    /* Neutral Colors */
    --woo-color-text: #1f2937;
    --woo-color-text-light: #6b7280;
    --woo-color-text-lighter: #9ca3af;
    
    --woo-color-heading: #111827;
    
    --woo-color-border: #e5e7eb;
    --woo-color-border-light: #f3f4f6;
    
    --woo-color-bg: #ffffff;
    --woo-color-bg-alt: #f9fafb;
    --woo-color-bg-dark: #111827;
    
    /* Status Colors */
    --woo-color-success: #10b981;
    --woo-color-warning: #f59e0b;
    --woo-color-error: #ef4444;
    --woo-color-info: #3b82f6;
    
    /* ===========================
       TYPOGRAPHY
       =========================== */
    
    /* Font Families */
    --woo-font-primary: 'SVN-Gilroy', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --woo-font-heading: 'SVN-Gilroy', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --woo-font-mono: 'Fira Code', 'Courier New', monospace;
    
    /* Font Sizes */
    --woo-font-size-xs: 0.75rem;    /* 12px */
    --woo-font-size-sm: 0.875rem;   /* 14px */
    --woo-font-size-base: 1rem;     /* 16px */
    --woo-font-size-lg: 1.125rem;   /* 18px */
    --woo-font-size-xl: 1.25rem;    /* 20px */
    --woo-font-size-2xl: 1.5rem;    /* 24px */
    --woo-font-size-3xl: 1.875rem;  /* 30px */
    --woo-font-size-4xl: 2.25rem;   /* 36px */
    --woo-font-size-5xl: 3rem;      /* 48px */
    
    /* Font Weights */
    --woo-font-weight-normal: 400;
    --woo-font-weight-medium: 500;
    --woo-font-weight-semibold: 600;
    --woo-font-weight-bold: 700;
    
    /* Line Heights */
    --woo-line-height-tight: 1.25;
    --woo-line-height-normal: 1.5;
    --woo-line-height-relaxed: 1.75;
    
    /* ===========================
       SPACING SYSTEM
       =========================== */
    
    --woo-spacing-xs: 0.25rem;   /* 4px */
    --woo-spacing-sm: 0.5rem;    /* 8px */
    --woo-spacing-md: 1rem;      /* 16px */
    --woo-spacing-lg: 1.5rem;    /* 24px */
    --woo-spacing-xl: 2rem;      /* 32px */
    --woo-spacing-2xl: 3rem;     /* 48px */
    --woo-spacing-3xl: 4rem;     /* 64px */
    --woo-spacing-4xl: 6rem;     /* 96px */
    
    /* ===========================
       BORDER & RADIUS
       =========================== */
    
    --woo-border-width: 1px;
    --woo-border-width-thick: 2px;
    
    --woo-border-radius-sm: 0.25rem;  /* 4px */
    --woo-border-radius-md: 0.5rem;   /* 8px */
    --woo-border-radius-lg: 0.75rem;  /* 12px */
    --woo-border-radius-xl: 1rem;     /* 16px */
    --woo-border-radius-full: 9999px;
    
    /* ===========================
       SHADOWS
       =========================== */
    
    --woo-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --woo-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --woo-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --woo-shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    
    /* ===========================
       TRANSITIONS
       =========================== */
    
    --woo-transition-fast: 150ms ease-in-out;
    --woo-transition-base: 300ms ease-in-out;
    --woo-transition-slow: 500ms ease-in-out;
    
    /* ===========================
       BREAKPOINTS (for reference)
       =========================== */
    
    --woo-breakpoint-sm: 640px;
    --woo-breakpoint-md: 768px;
    --woo-breakpoint-lg: 1024px;
    --woo-breakpoint-xl: 1280px;
    --woo-breakpoint-2xl: 1536px;
}