/* ═══════════════════════════════════════
   CSS VARIABLES & DESIGN TOKENS
   ═══════════════════════════════════════ */

:root {
  /* Color Palette */
  --bg-deep: #050a14;
  --bg-mid: #0a1428;
  --bg-card: rgba(10, 22, 48, 0.55);
  --accent: #4a9eff;
  --accent-glow: rgba(74, 158, 255, 0.45);
  --accent-light: #7ecbff;
  --text-primary: #dce8f5;
  --text-secondary: #8ca8c4;
  --text-muted: #5a7a98;
  --border: rgba(74, 158, 255, 0.18);
  --border-hover: rgba(74, 158, 255, 0.5);
  --glass: rgba(8, 16, 36, 0.6);
  --danger: #ff6b6b;
  --success: #51cf66;

  /* Typography Scale - Fluid */
  --font-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --font-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --font-base: clamp(1rem, 0.9rem + 0.5vw, 1.15rem);
  --font-lg: clamp(1.15rem, 1rem + 0.75vw, 1.35rem);
  --font-xl: clamp(1.35rem, 1.1rem + 1.25vw, 1.8rem);
  --font-2xl: clamp(1.8rem, 1.3rem + 2.5vw, 2.6rem);
  --font-3xl: clamp(2.5rem, 1.5rem + 5vw, 4rem);

  /* Spacing Scale */
  --space-xs: clamp(0.25rem, 0.2rem + 0.25vw, 0.5rem);
  --space-sm: clamp(0.5rem, 0.4rem + 0.5vw, 0.75rem);
  --space-md: clamp(1rem, 0.8rem + 1vw, 1.5rem);
  --space-lg: clamp(1.5rem, 1.2rem + 1.5vw, 2.5rem);
  --space-xl: clamp(2rem, 1.5rem + 2.5vw, 4rem);
  --space-2xl: clamp(3rem, 2rem + 5vw, 6rem);

  /* Layout */
  --container-max: 1300px;
  --container-padding: clamp(1rem, 0.5rem + 2.5vw, 1.75rem);
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-base: 300ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 500ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 50px -10px rgba(30, 100, 200, 0.25);
  --shadow-glow: 0 0 20px rgba(74, 158, 255, 0.15);
  --shadow-glow-strong: 0 0 30px rgba(74, 158, 255, 0.3);

  /* Z-index scale - ИСПРАВЛЕННЫЙ */
  --z-canvas: -3;
  --z-particles: -2;
  --z-base: 1;
  --z-dropdown: 100;      /* catalog dropdown */
  --z-sticky: 200;        /* header */
  --z-modal: 300;         /* modals */
  --z-toast: 400;         /* toast notifications */
  --z-age-modal: 5000;    /* age verification - ВЫШЕ ВСЕГО */
  --z-cursor: 9999;       /* custom cursor */

  /* Performance */
  --will-change-transform: transform;
  --will-change-opacity: opacity;
  --contain-layout: layout style paint;
}

/* Color scheme support */
:root {
  color-scheme: dark;
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0.01ms;
    --transition-base: 0.01ms;
    --transition-slow: 0.01ms;
    --transition-bounce: 0.01ms;
  }
}