/* ============================================
   🎨 Design System - CSS Variables
   Premium Glassmorphism Theme
   ============================================ */

:root {
  /* ===== Color Palette ===== */
  /* Primary Colors */
  --color-primary: #7c3aed;
  --color-primary-light: #a78bfa;
  --color-primary-dark: #5b21b6;
  --color-primary-gradient: linear-gradient(135deg, #7c3aed 0%, #a78bfa 100%);
  
  /* Secondary Colors */
  --color-secondary: #3b82f6;
  --color-secondary-light: #60a5fa;
  --color-secondary-dark: #1e40af;
  
  /* Accent Colors */
  --color-accent: #ec4899;
  --color-accent-light: #f472b6;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  
  /* Neutral Colors - Dark Theme */
  --color-bg-primary: #0a0e1a;
  --color-bg-secondary: #0f172a;
  --color-bg-tertiary: #1e293b;
  --color-surface: rgba(255, 255, 255, 0.05);
  --color-surface-hover: rgba(255, 255, 255, 0.08);
  
  /* Text Colors */
  --color-text-primary: #f8fafc;
  --color-text-secondary: #cbd5e1;
  --color-text-muted: #94a3b8;
  --color-text-inverse: #0f172a;
  
  /* Border & Divider */
  --color-border: rgba(255, 255, 255, 0.1);
  --color-border-strong: rgba(255, 255, 255, 0.2);
  --color-divider: rgba(255, 255, 255, 0.06);
  
  /* ===== Glassmorphism ===== */
  --glass-bg: rgba(15, 23, 42, 0.7);
  --glass-bg-strong: rgba(15, 23, 42, 0.85);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-blur: blur(20px);
  --glass-blur-strong: blur(30px);
  
  /* ===== Shadows ===== */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px rgba(124, 58, 237, 0.4);
  --shadow-glow-hover: 0 0 40px rgba(124, 58, 237, 0.6);
  
  /* ===== Typography ===== */
  --font-family-primary: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-secondary: 'Poppins', sans-serif;
  --font-family-mono: 'Fira Code', 'Consolas', 'Courier New', monospace;
  
  /* Font Display */
  --font-display: swap;
  
  /* Font Sizes */
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  --font-size-4xl: 2.25rem;   /* 36px */
  --font-size-5xl: 3rem;      /* 48px */
  --font-size-6xl: 3.75rem;   /* 60px */
  
  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  
  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* ===== Spacing ===== */
  --spacing-0: 0;
  --spacing-1: 0.25rem;   /* 4px */
  --spacing-2: 0.5rem;    /* 8px */
  --spacing-3: 0.75rem;   /* 12px */
  --spacing-4: 1rem;      /* 16px */
  --spacing-5: 1.25rem;   /* 20px */
  --spacing-6: 1.5rem;    /* 24px */
  --spacing-8: 2rem;      /* 32px */
  --spacing-10: 2.5rem;   /* 40px */
  --spacing-12: 3rem;     /* 48px */
  --spacing-16: 4rem;     /* 64px */
  --spacing-20: 5rem;     /* 80px */
  --spacing-24: 6rem;     /* 96px */
  
  /* ===== Border Radius ===== */
  --radius-sm: 0.375rem;  /* 6px */
  --radius-md: 0.5rem;    /* 8px */
  --radius-lg: 0.75rem;   /* 12px */
  --radius-xl: 1rem;      /* 16px */
  --radius-2xl: 1.5rem;   /* 24px */
  --radius-3xl: 2rem;     /* 32px */
  --radius-full: 9999px;
  
  /* ===== Transitions ===== */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
  
  /* ===== Z-Index ===== */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  
  /* ===== Breakpoints (for JS) ===== */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
  
  /* ===== Container ===== */
  --container-max-width: 1280px;
  --container-padding: 1.5rem;
}

/* ============================================
   🌞 Light Theme Override
   ============================================ */
[data-theme="light"] {
  /* Background Colors */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-bg-tertiary: #f1f5f9;
  --color-surface: rgba(15, 23, 42, 0.04);
  --color-surface-hover: rgba(15, 23, 42, 0.08);
  
  /* Text Colors */
  --color-text-primary: #0f172a;
  --color-text-secondary: #334155;
  --color-text-muted: #64748b;
  --color-text-inverse: #f8fafc;
  
  /* Border & Divider */
  --color-border: rgba(15, 23, 42, 0.1);
  --color-border-strong: rgba(15, 23, 42, 0.2);
  --color-divider: rgba(15, 23, 42, 0.06);
  
  /* Glassmorphism */
  --glass-bg: rgba(248, 250, 252, 0.7);
  --glass-bg-strong: rgba(248, 250, 252, 0.9);
  --glass-border: rgba(15, 23, 42, 0.15);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.2);
}

/* ============================================
   🌐 RTL Support for Farsi
   ============================================ */
[dir="rtl"] {
  --font-family-primary: 'Vazirmatn', 'Tahoma', sans-serif;
}