/* ==============================================================================
   ANIMATIONS & MOTION — THE SACRED WEDDING OF NASIR & ISNA
   Cinematic Transitions, Smooth Easing, Reduced Motion Support
   ============================================================================== */

/* Keyframe Animations */
@keyframes pulseGold {
  0%, 100% {
    transform: scale(1);
    opacity: 0.9;
  }
  50% {
    transform: scale(1.04);
    opacity: 1;
    filter: drop-shadow(0 0 16px rgba(212, 175, 55, 0.6));
  }
}

@keyframes loadProgress {
  0% { width: 0%; }
  60% { width: 75%; }
  100% { width: 100%; }
}

@keyframes floatOrnament {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-8px) rotate(3deg);
  }
}

@keyframes rotateDisc {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes mouseWheel {
  0% {
    opacity: 1;
    transform: translate(-50%, 0);
  }
  50% {
    opacity: 0.2;
    transform: translate(-50%, 10px);
  }
  100% {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

@keyframes toastFadeIn {
  from {
    opacity: 0;
    transform: translateY(-16px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes toastFadeOut {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(-16px) scale(0.95);
  }
}

@keyframes shimmerEffect {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ==============================================================================
   SCROLL REVEAL UTILITY CLASSES (INTERSECTION OBSERVER)
   ============================================================================== */
.reveal-fade-up {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-fade-up.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-fade-in {
  opacity: 0;
  transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity;
}

.reveal-fade-in.is-revealed {
  opacity: 1;
}

.reveal-scale-up {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 1.1s cubic-bezier(0.16, 1, 0.3, 1), transform 1.1s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-scale-up.is-revealed {
  opacity: 1;
  transform: scale(1);
}

.reveal-slide-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-slide-left.is-revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-slide-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-slide-right.is-revealed {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger Delays */
.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }
.delay-500 { transition-delay: 0.5s; }
.delay-600 { transition-delay: 0.6s; }

/* Image Placeholder Fallback */
.image-placeholder-luxury {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, #18382b 0%, #091912 100%);
  color: var(--gold-light);
  font-family: var(--font-decorative);
  text-align: center;
  padding: 20px;
}

.image-placeholder-luxury span {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.image-placeholder-luxury small {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ==============================================================================
   ACCESSIBILITY: 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;
  }

  .reveal-fade-up,
  .reveal-fade-in,
  .reveal-scale-up,
  .reveal-slide-left,
  .reveal-slide-right {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}