/* ============================================
   DESIGN TOKENS — Rady Ahmed Portfolio
   ============================================ */

:root {
  /* ── Color Palette (Dark Mode Default) ── */
  --bg-primary: #06060b;
  --bg-secondary: #0d0d14;
  --bg-tertiary: #14141e;
  --bg-elevated: #1a1a28;
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-glass-hover: rgba(255, 255, 255, 0.06);
  --bg-glass-border: rgba(255, 255, 255, 0.06);
  --bg-card: rgba(255, 255, 255, 0.02);

  --text-primary: #f0f0f5;
  --text-secondary: #8b8b9e;
  --text-tertiary: #5a5a6e;
  --text-inverse: #06060b;

  /* ── Accent Colors ── */
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --accent-muted: #4f46e5;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --accent-glow-strong: rgba(99, 102, 241, 0.3);
  --accent-2: #06b6d4;
  --accent-3: #ec4899;

  /* ── Aurora / Neon Colors ── */
  --aurora-1: #6366f1;
  --aurora-2: #8b5cf6;
  --aurora-3: #a855f7;
  --aurora-4: #ec4899;
  --aurora-5: #06b6d4;
  --neon-blue: #38bdf8;
  --neon-purple: #c084fc;
  --neon-pink: #f472b6;
  --neon-cyan: #22d3ee;

  /* ── Gradients ── */
  --gradient-primary: linear-gradient(135deg, #6366f1, #8b5cf6);
  --gradient-secondary: linear-gradient(135deg, #6366f1, #06b6d4);
  --gradient-accent: linear-gradient(135deg, #8b5cf6, #ec4899);
  --gradient-subtle: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
  --gradient-aurora: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899, #06b6d4);
  --gradient-neon: linear-gradient(90deg, #6366f1, #8b5cf6, #ec4899, #06b6d4, #6366f1);
  --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.05), rgba(255,255,255,0.01));
  --gradient-card-border: linear-gradient(135deg, rgba(99,102,241,0.4), rgba(139,92,246,0.2), rgba(6,182,212,0.4));

  /* ── Status Colors ── */
  --success: #22c55e;
  --success-bg: rgba(34, 197, 94, 0.1);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --error: #ef4444;
  --error-bg: rgba(239, 68, 68, 0.1);
  --info: #06b6d4;
  --info-bg: rgba(6, 182, 212, 0.1);

  /* ── Borders ── */
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --border-accent: rgba(99, 102, 241, 0.3);

  /* ── Shadows ── */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
  --shadow-glow-strong: 0 0 60px rgba(99, 102, 241, 0.25);
  --shadow-neon: 0 0 20px rgba(99, 102, 241, 0.3), 0 0 60px rgba(99, 102, 241, 0.1);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255,255,255,0.03);

  /* ── Typography ── */
  --font-sans: 'Inter', 'Noto Sans Arabic', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  --text-xs: 0.75rem;     /* 12px */
  --text-sm: 0.875rem;    /* 14px */
  --text-base: 1rem;      /* 16px */
  --text-lg: 1.125rem;    /* 18px */
  --text-xl: 1.25rem;     /* 20px */
  --text-2xl: 1.5rem;     /* 24px */
  --text-3xl: 1.875rem;   /* 30px */
  --text-4xl: 2.25rem;    /* 36px */
  --text-5xl: 3rem;       /* 48px */
  --text-6xl: 3.75rem;    /* 60px */
  --text-7xl: 4.5rem;     /* 72px */

  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;

  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;

  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;

  /* ── Spacing Scale (4px base) ── */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */

  /* ── Border Radius ── */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-2xl: 28px;
  --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: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-smooth: 300ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --transition-elastic: 800ms cubic-bezier(0.175, 0.885, 0.32, 1.275);

  /* ── Animation Durations ── */
  --duration-fast: 200ms;
  --duration-base: 400ms;
  --duration-slow: 600ms;
  --duration-slower: 1000ms;
  --duration-slowest: 1500ms;

  /* ── Easing Functions ── */
  --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out-quint: cubic-bezier(0.83, 0, 0.17, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* ── Z-Index Scale ── */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-overlay: 400;
  --z-modal: 500;
  --z-toast: 600;
  --z-preloader: 9999;

  /* ── Layout ── */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1200px;
  --container-2xl: 1400px;
  --header-height: 72px;
}

/* ── Light Mode Overrides ── */
[data-theme="light"] {
  --bg-primary: #fafafa;
  --bg-secondary: #f0f0f5;
  --bg-tertiary: #e8e8ee;
  --bg-elevated: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.7);
  --bg-glass-hover: rgba(255, 255, 255, 0.85);
  --bg-glass-border: rgba(0, 0, 0, 0.08);
  --bg-card: rgba(255, 255, 255, 0.8);

  --text-primary: #0a0a0f;
  --text-secondary: #5a5a6e;
  --text-tertiary: #8b8b9e;
  --text-inverse: #f0f0f5;

  --accent: #4f46e5;
  --accent-hover: #6366f1;
  --accent-muted: #4338ca;
  --accent-glow: rgba(79, 70, 229, 0.1);
  --accent-glow-strong: rgba(79, 70, 229, 0.2);

  --border: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.15);
  --border-accent: rgba(79, 70, 229, 0.3);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
  --shadow-glow: 0 0 40px rgba(79, 70, 229, 0.1);
  --shadow-glow-strong: 0 0 60px rgba(79, 70, 229, 0.15);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.06), 0 0 0 1px rgba(0,0,0,0.04);
}