/* =========================================================
   ZACK PORTFOLIO
   Design System / Variables
   ========================================================= */

:root {
  /* =========================
       Colors
       ========================= */

  --color-bg: #070a0f;
  --color-bg-secondary: #0b1018;
  --color-bg-tertiary: #101722;

  --color-surface: #111821;
  --color-surface-hover: #151f2c;

  --color-primary: #38bdf8;
  --color-primary-hover: #60d5ff;

  --color-secondary: #818cf8;
  --color-accent: #22d3ee;

  --color-success: #34d399;
  --color-warning: #fbbf24;
  --color-danger: #f87171;

  --color-white: #ffffff;
  --color-text: #f8fafc;
  --color-text-secondary: #cbd5e1;
  --color-text-muted: #94a3b8;

  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(56, 189, 248, 0.3);

  /* =========================
       Gradients
       ========================= */

  --gradient-primary: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);

  --gradient-dark: linear-gradient(180deg, #070a0f 0%, #0b1018 100%);

  --gradient-glow: radial-gradient(
    circle,
    rgba(56, 189, 248, 0.14) 0%,
    rgba(56, 189, 248, 0) 70%
  );

  /* =========================
       Typography
       ========================= */

  --font-primary:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --font-heading:
    "Space Grotesk", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.75rem;
  --font-size-5xl: 3.5rem;
  --font-size-6xl: 4.5rem;

  --line-height-tight: 1.1;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.8;

  /* =========================
       Layout
       ========================= */

  --container-width: 1200px;
  --container-wide: 1400px;

  --section-padding: 120px;
  --section-padding-mobile: 80px;

  --header-height: 80px;

  /* =========================
       Spacing
       ========================= */

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* =========================
       Border Radius
       ========================= */

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* =========================
       Shadows
       ========================= */

  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.2);

  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.3);

  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);

  --shadow-glow: 0 0 40px rgba(56, 189, 248, 0.12);

  /* =========================
       Transitions
       ========================= */

  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;

  /* =========================
       Z Index
       ========================= */

  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 500;
  --z-modal: 1000;
  --z-loader: 2000;
}