/* ============================================================
   Yandex Plus — Spacing, radii, shadows
   8px base grid. Generous corner rounding is a Plus signature —
   pill buttons, soft cards. Shadows are subtle and cool-tinted.
   ============================================================ */

:root {
  /* ---- Spacing scale (8px base) ---- */
  --space-0:  0;
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  24px;
  --space-6:  32px;
  --space-7:  48px;
  --space-8:  64px;
  --space-9:  96px;
  --space-10: 128px;

  /* ---- Deck layout ---- */
  --deck-w: 2560px;          /* 16:9 design canvas width */
  --deck-h: 1440px;
  --deck-margin: 160px;      /* safe outer margin on slides */
  --deck-gutter: 48px;       /* gap between content blocks */

  /* ---- Corner radii ---- */
  --radius-xs: 6px;
  --radius-sm: 12px;
  --radius-md: 20px;   /* default card / input */
  --radius-lg: 28px;   /* large card / panel */
  --radius-xl: 40px;   /* hero block */
  --radius-pill: 999px;/* buttons, chips, plus badge */

  /* ---- Border widths ---- */
  --border-thin: 1px;
  --border-med:  2px;

  /* ---- Shadows (cool, soft, low-spread) ---- */
  --shadow-xs: 0 1px 2px rgba(20, 20, 36, 0.06);
  --shadow-sm: 0 4px 12px rgba(20, 20, 36, 0.07);
  --shadow-md: 0 12px 32px rgba(40, 41, 109, 0.10);
  --shadow-lg: 0 24px 60px rgba(40, 41, 109, 0.14);
  --shadow-brand: 0 16px 40px rgba(131, 65, 239, 0.28); /* glow under gradient elements */

  /* ---- Motion ---- */
  --ease-standard: cubic-bezier(0.4, 0.0, 0.2, 1); /* @kind other */
  --ease-out:      cubic-bezier(0.16, 1, 0.3, 1); /* @kind other */
  --dur-fast: 120ms; /* @kind other */
  --dur-med:  220ms; /* @kind other */
  --dur-slow: 420ms; /* @kind other */
}