/* ============================================================
   Sona — Radii, borders, shadows, motion
   Deck surfaces are flat and square-edged; the product app uses
   generous 16px card rounding, hairline borders, near-no shadow.
   ============================================================ */

:root {
  /* Radii */
  --radius-xs:   4px;
  --radius-sm:   8px;
  --radius-md:   12px;
  --radius-lg:   16px;   /* app cards */
  --radius-pill: 999px;  /* status pills */
  --radius-none: 0;      /* deck panels stay square */

  /* Borders */
  --border-card: 1px solid var(--app-line);
  --border-panel: 1px solid var(--border-hairline);

  /* Shadows — barely-there; borders do the work */
  --shadow-card: 0 1px 2px rgba(27, 26, 23, 0.05);
  --shadow-raised: 0 8px 24px rgba(27, 26, 23, 0.10);

  /* Motion — quick, understated; no bounces */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1); /* @kind other */
  --duration-fast: 120ms; /* @kind other */
  --duration-base: 200ms; /* @kind other */
}