/* DESIGN-SYSTEM TIER 1 — GLOBAL PRIMITIVES
   Запрещено переопределять на сайтах. */

:root {
  /* Spacing scale (8-point grid) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;
  --space-9: 128px;

  /* Radius scale */
  --radius-1: 6px;
  --radius-2: 12px;
  --radius-3: 20px;
  --radius-full: 9999px;

  /* Font-size scale (modular) */
  --fs-1: 12px;
  --fs-2: 13px;
  --fs-3: 14px;
  --fs-4: 16px;
  --fs-5: 18px;
  --fs-6: 20px;
  --fs-7: 24px;
  --fs-8: 28px;
  --fs-9: 36px;
  --fs-10: 48px;
  --fs-11: 56px;

  /* Font-weight scale */
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  /* Line heights */
  --lh-tight: 1.1;
  --lh-snug: 1.2;
  --lh-normal: 1.5;
  --lh-relaxed: 1.7;

  /* Letter spacing */
  --ls-tighter: -0.02em;
  --ls-tight: -0.01em;
  --ls-normal: 0;
  --ls-wide: 0.05em;
  --ls-widest: 0.1em;

  /* Shadows */
  --shadow-1: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-2: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-3: 0 16px 40px rgba(0,0,0,0.12);
  --shadow-fab: 0 4px 16px rgba(0,0,0,0.15);

  /* Container */
  --container-max: 1280px;
  --container-padding: 24px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  --transition-slow: 0.3s ease;

  /* Z-index scale */
  --z-base: 1;
  --z-dropdown: 10;
  --z-navbar: 50;
  --z-fab: 100;
  --z-modal: 200;
  --z-toast: 300;

  /* Font stacks */
  --font-sans: 'Onest', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}