/**
 * Lokhandwala Packers and Movers - Site-Wide Motion & Scroll Animation System
 * Core scroll effect classes, keyframes, transitions & accessibility (prefers-reduced-motion)
 * Performance: GPU-accelerated (transform & opacity only)
 */

/* ==========================================================================
   Base Animation Utility Classes
   ========================================================================== */

/* Fade Up */
.reveal-fade-up {
  opacity: 0;
  transform: translateY(32px);
  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;
}

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

/* Fade Left (enters from left) */
.reveal-fade-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

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

/* Fade Right (enters from right) */
.reveal-fade-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

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

/* Scale Reveal (0.94 -> 1) */
.reveal-scale {
  opacity: 0;
  transform: scale(0.94);
  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;
}

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

/* Image Clip Reveal */
.reveal-img-mask {
  position: relative;
  overflow: hidden;
}

.reveal-img-mask img {
  transform: scale(1.08);
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.reveal-img-mask.is-revealed img {
  transform: scale(1);
}

.reveal-clip {
  clip-path: inset(0 100% 0 0);
  transition: clip-path 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: clip-path;
}

.reveal-clip.is-revealed {
  clip-path: inset(0 0 0 0);
}

/* Text Mask Reveal */
.reveal-text-line {
  display: block;
  overflow: hidden;
}

.reveal-text-line > span {
  display: block;
  transform: translateY(100%);
  opacity: 0;
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.8s ease;
}

.reveal-text-line.is-revealed > span {
  transform: translateY(0);
  opacity: 1;
}

/* ==========================================================================
   Staggered Containers & Delays
   ========================================================================== */
.stagger-container > * {
  opacity: 0;
  transform: translateY(30px) scale(0.97);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.stagger-container.is-revealed > *:nth-child(1) { transition-delay: 0.05s; opacity: 1; transform: translateY(0) scale(1); }
.stagger-container.is-revealed > *:nth-child(2) { transition-delay: 0.15s; opacity: 1; transform: translateY(0) scale(1); }
.stagger-container.is-revealed > *:nth-child(3) { transition-delay: 0.25s; opacity: 1; transform: translateY(0) scale(1); }
.stagger-container.is-revealed > *:nth-child(4) { transition-delay: 0.35s; opacity: 1; transform: translateY(0) scale(1); }
.stagger-container.is-revealed > *:nth-child(5) { transition-delay: 0.45s; opacity: 1; transform: translateY(0) scale(1); }
.stagger-container.is-revealed > *:nth-child(6) { transition-delay: 0.55s; opacity: 1; transform: translateY(0) scale(1); }

/* Delay Utility Classes */
.delay-100 { transition-delay: 0.1s !important; }
.delay-200 { transition-delay: 0.2s !important; }
.delay-300 { transition-delay: 0.3s !important; }
.delay-400 { transition-delay: 0.4s !important; }
.delay-500 { transition-delay: 0.5s !important; }

/* ==========================================================================
   Section Transitions & Background Ambiance
   ========================================================================== */
.section-glow-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(80px);
  opacity: 0.25;
  z-index: 0;
  transition: transform 0.6s ease-out;
}

.section-glow-orb--gold {
  background: radial-gradient(circle, #f59e0b 0%, transparent 70%);
  width: 380px;
  height: 380px;
}

.section-glow-orb--slate {
  background: radial-gradient(circle, #334155 0%, transparent 70%);
  width: 440px;
  height: 440px;
}

/* Subtle Floating Elements */
@keyframes subtleFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.anim-float {
  animation: subtleFloat 6s ease-in-out infinite;
}

/* Pulse Glow (Golden Yellow - NO RED) */
@keyframes goldPulse {
  0%, 100% { box-shadow: 0 0 15px rgba(245, 158, 11, 0.2); }
  50% { box-shadow: 0 0 30px rgba(245, 158, 11, 0.45); }
}

.anim-pulse-gold {
  animation: goldPulse 4s infinite ease-in-out;
}

/* Moving process timeline connector line */
.timeline-track-bar {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--border-card);
  z-index: 1;
}

.timeline-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--gold-gradient);
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Mobile Optimization for Scroll Animations
   ========================================================================== */
@media (max-width: 767px) {
  .reveal-fade-up {
    transform: translateY(20px);
    transition-duration: 0.5s;
  }
  
  .reveal-fade-left {
    transform: translateX(-20px);
    transition-duration: 0.5s;
  }
  
  .reveal-fade-right {
    transform: translateX(20px);
    transition-duration: 0.5s;
  }
  
  .stagger-container.is-revealed > * {
    transition-delay: 0.08s !important;
  }
}

/* ==========================================================================
   Accessibility: prefers-reduced-motion: reduce
   ========================================================================== */
@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-left,
  .reveal-fade-right,
  .reveal-scale,
  .stagger-container > *,
  .reveal-clip,
  .reveal-text-line > span {
    opacity: 1 !important;
    transform: none !important;
    clip-path: none !important;
    transition: none !important;
  }

  .anim-float,
  .anim-pulse-gold {
    animation: none !important;
  }
}