/**
 * CSS Custom Properties (Variables)
 * Multi-theme support with CSS Variables
 */

:root {
    /* =========================================================================
       DEFAULT THEME: Developer Blue
       ========================================================================= */
    --color-primary: #6366f1;
    --color-secondary: #8b5cf6;
    --color-accent: #06b6d4;
    --color-dark: #0f172a;
    --color-darker: #020617;
    --color-light: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;
    
    /* Status Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
    
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
    --shadow-glow-lg: 0 0 60px rgba(99, 102, 241, 0.25);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Layout */
    --sidebar-width: 280px;
    --sidebar-width-collapsed: 80px;
    --header-height: 70px;
    --content-max-width: 1200px;
    
    /* Z-Index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
}

/* =========================================================================
   THEME: Developer Blue (Default)
   ========================================================================= */
[data-theme="developer"] {
    --color-primary: #6366f1;
    --color-secondary: #8b5cf6;
    --color-accent: #06b6d4;
    --color-dark: #0f172a;
    --color-darker: #020617;
}

/* =========================================================================
   THEME: Midnight
   ========================================================================= */
[data-theme="midnight"] {
    --color-primary: #3b82f6;
    --color-secondary: #1e40af;
    --color-accent: #22d3ee;
    --color-dark: #020617;
    --color-darker: #000000;
}

/* =========================================================================
   THEME: Forest
   ========================================================================= */
[data-theme="forest"] {
    --color-primary: #10b981;
    --color-secondary: #059669;
    --color-accent: #34d399;
    --color-dark: #022c22;
    --color-darker: #011612;
}

/* =========================================================================
   THEME: Sunset
   ========================================================================= */
[data-theme="sunset"] {
    --color-primary: #f97316;
    --color-secondary: #ea580c;
    --color-accent: #fbbf24;
    --color-dark: #1c1917;
    --color-darker: #0c0a09;
}

/* =========================================================================
   THEME: Rose
   ========================================================================= */
[data-theme="rose"] {
    --color-primary: #e11d48;
    --color-secondary: #be123c;
    --color-accent: #fb7185;
    --color-dark: #1f1f1f;
    --color-darker: #0f0f0f;
}