/* =====================================================================
   SKELETON LOADING
   Placeholder shimmer buat state "nunggu data pertama kali" sebelum
   listener Firestore balas -- gantiin teks "Memuat..." polos. Begitu
   data asli dateng, container-nya di-render ulang lewat Motion.renderInto
   yang otomatis nge-fade-in konten beneran, jadi transisinya berasa
   nyambung (bukan lompatan skeleton -> teks tiba-tiba).
   ===================================================================== */
@keyframes skelShimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.skel {
  position: relative;
  overflow: hidden;
  background: linear-gradient(100deg,
    var(--surface-sunken) 30%,
    var(--line) 45%,
    var(--surface-sunken) 62%);
  background-size: 200% 100%;
  animation: skelShimmer 1.6s ease-in-out infinite;
  border-radius: var(--r-sm);
  pointer-events: none;
  user-select: none;
}

/* baris list/produk/user/device/shift -- placeholder setinggi 1 baris asli */
.skel-row-block { height: 46px; border-radius: var(--r-md); margin: var(--sp-2) 0; }
.skel-row-block:first-child { margin-top: 0; }

/* chip kategori */
.skel-chip { display: inline-block; width: 84px; height: 30px; border-radius: var(--r-full); margin: 0 6px 6px 0; }

/* kartu generik (fallback) */
.skel-card { height: 64px; border-radius: var(--r-md); margin-bottom: var(--sp-3); }

@media (prefers-reduced-motion: reduce) {
  .skel { animation: none; background: var(--surface-sunken); }
}