/* ==========================================================================
   HUP Meble - Subtle Animations & Transitions
   Optymalizacja wydajności: preferowane transform i opacity, sprzętowa akceleracja
   Wsparcie dla prefers-reduced-motion
   ========================================================================== */

/* Subtelny Ken Burns dla aktywnego slajdu hero */
@keyframes kenburns {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.08);
  }
}

.slide.active .slide-image {
  animation: kenburns 9s ease-out forwards;
}

/* Animacje wejścia dla elementów podczas scrollowania (IntersectionObserver) */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delay dla siatek */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* Subtelny efekt lśnienia złota dla przycisków */
.btn-primary::after {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    60deg,
    transparent,
    rgba(255, 255, 255, 0.25),
    transparent
  );
  transform: rotate(25deg) translateY(-100%);
  transition: transform 0.6s ease;
}

.btn-primary:hover::after {
  transform: rotate(25deg) translateY(100%);
}

/* Dostępność - wyłączenie animacji dla użytkowników z prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .slide.active .slide-image {
    animation: none !important;
    transform: scale(1) !important;
  }
  
  .animate-on-scroll {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}