/* ui/UpdateAvailable — the screen for a client and a game server of different versions.
   Contract: ./UpdateAvailable.spec.md
   Styled like ui/AdUnavailable (a glass panel over a scrim), one layer above it. */

.sp-update {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  padding: 24px 16px;
  pointer-events: none;
}

.sp-update__scrim {
  position: fixed;
  inset: 0;
  background: color-mix(in oklab, var(--sp-space-0) 72%, transparent);
  backdrop-filter: blur(3px);
  pointer-events: auto;
}

.sp-update__panel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: min(460px, calc(100vw - 32px));
  padding: 22px 22px 20px;
  color: var(--sp-text);
  background: var(--sp-glass);
  border: 1px solid var(--sp-line-strong);
  border-top: 2px solid var(--sp-accent);
  border-radius: var(--sp-radius);
  box-shadow: 0 30px 90px -34px var(--sp-space-0), 0 0 40px -18px var(--sp-accent);
  backdrop-filter: blur(14px);
  pointer-events: auto;
  animation: sp-update-in var(--sp-dur-fast, 160ms) ease-out;
}

@keyframes sp-update-in {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to { opacity: 1; transform: none; }
}

.sp-update__head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sp-update__mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  flex: none;
  color: var(--sp-accent-2);
  font-size: 1.35rem;
  border: 1px solid var(--sp-line-strong);
  border-radius: 50%;
  animation: sp-update-turn 2.4s linear infinite;
}

@keyframes sp-update-turn {
  to { transform: rotate(360deg); }
}

.sp-update__title {
  margin: 0;
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sp-update__text {
  margin: 0;
  color: var(--sp-text-dim);
  font-size: 0.98rem;
  line-height: 1.5;
}

.sp-update__actions {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 4px;
}

.sp-update__button {
  min-width: 44px;
  min-height: 44px;
  padding-inline: 22px;
  justify-content: center;
}

@media (max-width: 480px) {
  .sp-update__actions { flex-direction: column; }
  .sp-update__button { width: 100%; }
  .sp-update__button--primary { order: -1; }
}

@media (prefers-reduced-motion: reduce) {
  .sp-update__panel { animation: none; }
  .sp-update__mark { animation: none; }
}