/**
 * Centralized Design Tokens
 * Extracted from Design System Audit - Stage 1
 */

 :root {
    /* =========================================
       PRIMITIVE / FOUNDATION TOKENS
       ========================================= */
    
    /* --- Colors --- */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --gray-950: #0c0c0c;
    --black: #000;
    --white: #fff;
    
    --blue-50: #f3f6fb;
    --blue-100: #dbeafe;
    --blue-200: #bfdbfe;
    --blue-300: #93c5fd;
    --blue-400: #60a5fa;
    --blue-500: #3b82f6;
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --blue-800: #1e40af;
    --blue-900: #1e3a8a;
    
    --brand-primary: #2a5da8;
    --brand-primary-light: #3f78d1;
    --brand-primary-dark: #1e4a8f;

    /* --- Typography (Existing) --- */
    --font-family-base: 'Poppins', sans-serif;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-black: 900;
    
    /* Existing typography scale */
    --fs-base: 1.6rem;
    --fs-body: clamp(1.55rem, 1.5rem + 0.2vw, 1.6rem);
    --fs-body-lg: clamp(1.7rem, 1.6rem + 0.4vw, 1.9rem);
    --fs-h1: clamp(3.2rem, 2rem + 3vw, 5rem);
    --fs-h2: clamp(2.4rem, 1.6rem + 1.8vw, 3.2rem);
    --fs-h3: clamp(2rem, 1.2rem + 1.2vw, 2.4rem);
    --fs-subtitle: clamp(1.8rem, 1.6rem + 0.8vw, 2.2rem);
    --fs-nav: 1.6rem;
    --fs-logo: clamp(2.4rem, 2rem + 1vw, 2.8rem);
    --fs-hero-title: clamp(2.4rem, 1.7rem + 2.0vw, 3.8rem);
    --fs-small: clamp(1.4rem, 1.3rem + 0.2vw, 1.5rem);

    --line-height-tight: 1;
    --line-height-snug: 1.3;
    --line-height-base: 1.6;
    --line-height-relaxed: 1.7;

    /* --- Spacing --- */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-section: 6rem;

    /* --- Border Radius --- */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-pill: 25px;
    --radius-full: 9999px;

    /* --- Shadows --- */
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 20px rgba(42, 93, 168, 0.3);

    /* --- Transitions --- */
    --duration-fast: 0.15s;
    --duration-base: 0.3s;
    --duration-slow: 0.4s;
    --ease-standard: ease;
    --ease-emphasized: cubic-bezier(0.4, 0, 0.2, 1);

    /* --- Z-Index --- */
    --z-base: 1;
    --z-dropdown: 1000;
    --z-sticky: 1100;
    --z-overlay: 1600;
    --z-modal: 2000;
    --z-toast: 10000;


    /* =========================================
       SEMANTIC TOKENS (DARK THEME - DEFAULT)
       ========================================= */
    --color-bg-primary: #0f172a;
    --color-bg-secondary: rgba(255, 255, 255, 0.03);
    --color-bg-tertiary: rgba(255, 255, 255, 0.05);
    
    --color-text-primary: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.85);
    --color-text-muted: rgba(255, 255, 255, 0.7);
    
    --color-border: rgba(255, 255, 255, 0.1);
    --color-border-hover: rgba(42, 93, 168, 0.3);
    
    --color-primary: var(--brand-primary);
    --color-primary-hover: var(--brand-primary-light);
    --color-primary-active: var(--brand-primary-dark);
}

/* =========================================
   SEMANTIC TOKENS (LIGHT THEME)
   ========================================= */
html[data-theme='light'] {
    --color-bg-primary: var(--gray-50);
    --color-bg-secondary: rgba(0, 0, 0, 0.02);
    --color-bg-tertiary: rgba(0, 0, 0, 0.05);
    
    --color-text-primary: var(--gray-900);
    --color-text-secondary: rgba(0, 0, 0, 0.8);
    --color-text-muted: rgba(0, 0, 0, 0.6);
    
    --color-border: rgba(0, 0, 0, 0.1);
    --color-border-hover: rgba(42, 93, 168, 0.3);
    
    --color-primary: var(--brand-primary);
    --color-primary-hover: var(--brand-primary-dark);
    --color-primary-active: var(--brand-primary);
}