/* ==========================================================================
   CSS CUSTOM PROPERTIES & DESIGN TOKENS
   DuniWeb - Elite Developer Portfolio & Services
   ========================================================================== */

:root {
  /* Color Palette - Dark Theme (Default) */
  --bg-primary: #07090e;
  --bg-secondary: #0d111a;
  --bg-tertiary: #131926;
  --bg-card: rgba(16, 22, 36, 0.7);
  --bg-card-hover: rgba(23, 31, 51, 0.85);
  --bg-glass: rgba(13, 17, 26, 0.65);
  --bg-glass-heavy: rgba(10, 14, 23, 0.85);
  --bg-code: #0b0f19;
  
  /* Accents & Brand Colors */
  --primary: #6366f1;
  --primary-rgb: 99, 102, 241;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.35);

  --secondary: #06b6d4;
  --secondary-rgb: 6, 182, 212;
  --secondary-light: #22d3ee;
  --secondary-dark: #0891b2;
  --secondary-glow: rgba(6, 182, 212, 0.3);

  --accent-pink: #ec4899;
  --accent-pink-glow: rgba(236, 72, 153, 0.3);
  --accent-emerald: #10b981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.35);
  --accent-amber: #f59e0b;
  --accent-violet: #8b5cf6;

  /* Text Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #0f172a;

  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-active: rgba(99, 102, 241, 0.5);
  --border-glow: 0 0 15px rgba(99, 102, 241, 0.25);

  /* Gradients */
  --grad-primary: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
  --grad-cyan: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #6366f1 100%);
  --grad-emerald: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
  --grad-dark: linear-gradient(180deg, rgba(13, 17, 26, 0.8) 0%, rgba(7, 9, 14, 0.95) 100%);
  --grad-card-border: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, rgba(99,102,241,0.2) 50%, rgba(6,182,212,0.1) 100%);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow-primary: 0 0 30px rgba(99, 102, 241, 0.35);
  --shadow-glow-cyan: 0 0 30px rgba(6, 182, 212, 0.35);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 5rem;
  --space-4xl: 7.5rem;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Z-Index Hierarchy */
  --z-canvas: 0;
  --z-base: 1;
  --z-header: 100;
  --z-modal: 1000;
  --z-toast: 2000;
  --z-cursor: 9999;
}

/* Light Theme Overrides */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-tertiary: #e2e8f0;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 0.98);
  --bg-glass: rgba(248, 250, 252, 0.8);
  --bg-glass-heavy: rgba(255, 255, 255, 0.95);
  --bg-code: #1e293b;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #f8fafc;

  --border-subtle: rgba(15, 23, 42, 0.08);
  --border-medium: rgba(15, 23, 42, 0.15);
  --border-active: rgba(99, 102, 241, 0.6);
  --border-glow: 0 0 15px rgba(99, 102, 241, 0.2);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);

  --grad-card-border: linear-gradient(135deg, rgba(0,0,0,0.08) 0%, rgba(99,102,241,0.25) 50%, rgba(6,182,212,0.15) 100%);
}