/* ==========================================================================
   VANAVIL PHOTOGRAPHY - High-End Animation & Interaction System
   1. HOVER EFFECTS
   2. 3D EFFECTS
   3. LOADING ANIMATIONS
   4. ENTRANCE ANIMATIONS
   5. MICROINTERACTIONS
   6. BACKGROUND ANIMATIONS
   7. MOUSE ANIMATION
   ========================================================================== */

/* --------------------------------------------------------------------------
   3. LOADING ANIMATIONS
   -------------------------------------------------------------------------- */

/* Top Page Loading Bar */
#page-loader-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, #b08d57, #e2c286, #b08d57);
  background-size: 200% 100%;
  animation: shimmerLoader 1.5s infinite linear;
  z-index: 100000;
  pointer-events: none;
  transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.5s ease;
}

#page-loader-progress.loaded {
  width: 100% !important;
  opacity: 0;
}

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

/* Skeleton Loading Shimmer for Images */
.img-loading-shimmer {
  background: linear-gradient(90deg, #1c1c1c 25%, #2a2a2a 50%, #1c1c1c 75%);
  background-size: 200% 100%;
  animation: skeletonShimmer 1.8s infinite ease-in-out;
}

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

/* Video Preloader Fade-out */
#video-preloader.fade-out {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.8s;
}

/* --------------------------------------------------------------------------
   4. ENTRANCE ANIMATIONS (Scroll-Triggered)
   -------------------------------------------------------------------------- */

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

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Fade In */
.fade-in {
  opacity: 0;
  transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.visible {
  opacity: 1;
}

/* Slide Left */
.slide-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.slide-left.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Slide Right */
.slide-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.slide-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Scale Up */
.scale-up {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.scale-up.visible {
  opacity: 1;
  transform: scale(1);
}

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

.img-reveal::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-off-white);
  transform-origin: left;
  transition: transform 1.1s cubic-bezier(0.77, 0, 0.175, 1);
  z-index: 1;
}

.section-dark .img-reveal::after {
  background-color: var(--color-dark);
}

.img-reveal.visible::after {
  transform: scaleX(0);
}

.img-reveal img {
  transform: scale(1.12);
  transition: transform 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.img-reveal.visible img {
  transform: scale(1);
}

/* Stagger Delays */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }
.delay-600 { transition-delay: 600ms; }

/* --------------------------------------------------------------------------
   1. HOVER EFFECTS
   -------------------------------------------------------------------------- */

/* Image Hover Zoom with Smooth Luxury Ease */
.hover-zoom {
  overflow: hidden;
  position: relative;
}

.hover-zoom img {
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), filter 0.8s ease;
  will-change: transform;
}

.hover-zoom:hover img {
  transform: scale(1.06);
  filter: contrast(102%) brightness(102%);
}

/* Sheen Light Sweep on Cards */
.hover-sheen {
  position: relative;
  overflow: hidden;
}

.hover-sheen::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    105deg,
    transparent 0%,
    rgba(255, 255, 255, 0.03) 40%,
    rgba(255, 255, 255, 0.18) 50%,
    rgba(255, 255, 255, 0.03) 60%,
    transparent 100%
  );
  transform: skewX(-20deg);
  transition: left 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
  z-index: 2;
}

.hover-sheen:hover::before {
  left: 180%;
}

/* Luxury Link Animated Underline */
.nav-link {
  position: relative;
  display: inline-block;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--color-gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Button Hover State Elevation & Glow */
.btn {
  position: relative;
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.3s ease, color 0.3s ease;
  will-change: transform, box-shadow;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(176, 141, 87, 0.3);
}

.btn-outline:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

/* --------------------------------------------------------------------------
   2. 3D EFFECTS (Tilt & Perspective)
   -------------------------------------------------------------------------- */

.card-3d {
  perspective: 1000px;
  transform-style: preserve-3d;
  transition: transform 0.25s cubic-bezier(0.2, 0, 0, 1), box-shadow 0.3s ease;
  will-change: transform;
}

.card-3d:hover {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.card-3d-content {
  transform-style: preserve-3d;
  transition: transform 0.25s cubic-bezier(0.2, 0, 0, 1);
}

.card-3d:hover .card-3d-content {
  transform: translateZ(20px);
}

/* --------------------------------------------------------------------------
   5. MICROINTERACTIONS
   -------------------------------------------------------------------------- */

/* Active Press Bounce Feedback */
button:active,
.btn:active,
.filter-btn:active,
.btn-nav:active {
  transform: scale(0.96) !important;
}

/* Click Ripple Wave */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(176, 141, 87, 0.35);
  transform: scale(0);
  animation: rippleAnimation 0.6s linear;
  pointer-events: none;
}

@keyframes rippleAnimation {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* Scroll Progress Bar at the top of Header */
#scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--color-gold);
  z-index: 1001;
  pointer-events: none;
  transition: width 0.1s linear;
}

/* Floating Socials Micro-pulse */
.floating-socials .social-icon {
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}

.floating-socials .social-icon:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

/* Form Input Focus Elevation */
.form-control {
  transition: border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.form-control:focus {
  border-color: var(--color-gold) !important;
  box-shadow: 0 0 0 3px rgba(176, 141, 87, 0.15) !important;
  outline: none;
}

/* Checkbox Label Microinteraction */
.checkbox-label {
  transition: color 0.2s ease, transform 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--color-gold);
  width: 1.1rem;
  height: 1.1rem;
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.checkbox-label input[type="checkbox"]:active {
  transform: scale(0.85);
}

/* --------------------------------------------------------------------------
   6. BACKGROUND ANIMATIONS (Particles & Ambient Glow)
   -------------------------------------------------------------------------- */

/* Ambient Gold Particle Canvas */
.ambient-particle-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.7;
}

/* Ambient Radial Glow Orb */
.ambient-glow-orb {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(176, 141, 87, 0.12) 0%, transparent 70%);
  filter: blur(50px);
  pointer-events: none;
  z-index: 0;
  animation: floatOrb 12s infinite alternate ease-in-out;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -30px) scale(1.15); }
  100% { transform: translate(-30px, 30px) scale(0.95); }
}

/* --------------------------------------------------------------------------
   7. MOUSE ANIMATION (Lerp Dual Cursor with Magnetic Physics)
   -------------------------------------------------------------------------- */

.cursor-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-gold);
  border-radius: 50%;
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 99999;
  transform: translate(-50%, -50%);
  transition: width 0.2s cubic-bezier(0.16, 1, 0.3, 1), height 0.2s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease, background-color 0.2s ease;
  display: none;
}

.cursor-outline {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(176, 141, 87, 0.8);
  border-radius: 50%;
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 99998;
  transform: translate(-50%, -50%);
  transition: width 0.25s cubic-bezier(0.16, 1, 0.3, 1), height 0.25s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.25s ease, border-color 0.25s ease;
  display: none;
}

/* Cursor Hover State */
.cursor-outline.cursor-hover {
  width: 65px;
  height: 65px;
  background-color: rgba(176, 141, 87, 0.15);
  border-color: var(--color-gold);
}

.cursor-dot.cursor-hover {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0);
}

/* Cursor Click Burst Wave */
.cursor-click-burst {
  position: fixed;
  border-radius: 50%;
  border: 2px solid var(--color-gold);
  pointer-events: none;
  z-index: 99997;
  transform: translate(-50%, -50%) scale(0);
  animation: cursorBurst 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes cursorBurst {
  0% {
    width: 10px;
    height: 10px;
    opacity: 0.9;
    transform: translate(-50%, -50%) scale(0);
  }
  100% {
    width: 60px;
    height: 60px;
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.6);
  }
}

/* Desktop only cursor display */
@media (min-width: 1024px) {
  body:not(.no-custom-cursor) .cursor-dot,
  body:not(.no-custom-cursor) .cursor-outline {
    display: block;
  }
}

/* Reduced Motion Override */
@media (prefers-reduced-motion: reduce) {
  .fade-up, .fade-in, .slide-left, .slide-right, .scale-up, .img-reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .ambient-glow-orb, .ambient-particle-canvas, #page-loader-progress {
    display: none !important;
  }
}