:root{
  /* Shadows exist on content cards only — never on buttons or navigation. */
  --shadow-xl:rgba(0,0,0,.05) 0px 20px 27px 0px;
  --shadow-xl-2:rgba(0,0,0,.16) -14px 10px 49px 0px;
  --shadow-card:var(--shadow-xl-2);
  --shadow-hover-surface:var(--shadow-xl);

  /* Motion — quiet, editorial. Fades and small lifts, no bounce. */
  --ease-standard:cubic-bezier(.4,0,.2,1); /* @kind other */
  --duration-fast:140ms; /* @kind other */
  --duration-base:240ms; /* @kind other */
  --duration-slow:420ms; /* @kind other */
}