/* Twinkling starfield — fixed background layer behind content, dark theme only.
   Simple opacity twinkle (per-star random duration/delay/brightness). temp.cl4.ru-local. */
#stars{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden;background:var(--bg)}
[data-theme="light"] #stars{display:none}
.star{position:absolute;width:1px;height:1px;margin:0;border-radius:2px;background:#fff;
  box-shadow:0 0 1px 1px rgba(255,255,255,.4);opacity:.5;
  animation-name:tm-twinkle;animation-iteration-count:infinite;animation-direction:alternate;animation-timing-function:ease-in-out}
@keyframes tm-twinkle{from{opacity:.12}to{opacity:var(--o,1)}}
@media (prefers-reduced-motion:reduce){.star{animation:none;opacity:.6}}