/* === PREMIUM SCROLL & LOADING ANIMATIONS === */

/* ===== Entrance Animations ===== */

/* Fade Up (refined) */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s var(--ease-out-expo),
              transform 0.7s var(--ease-out-expo);
}

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

/* Fade In */
.fade-in {
  opacity: 0;
  transition: opacity 0.6s ease;
}

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

/* Scale In */
.scale-in {
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.6s ease,
              transform 0.6s var(--ease-spring);
}

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

/* Slide Left - Right */
.slide-left {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.7s var(--ease-out-expo),
              transform 0.7s var(--ease-out-expo);
}

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

.slide-right {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.7s var(--ease-out-expo),
              transform 0.7s var(--ease-out-expo);
}

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

/* Zoom In Subtle */
.zoom-in {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.6s ease,
              transform 0.6s var(--ease-out-expo);
}

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

/* ===== Stagger Children ===== */
.stagger-children > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease,
              transform 0.6s var(--ease-out-expo);
}

.stagger-children.visible > * {
  opacity: 1;
  transform: translateY(0);
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0ms; }
.stagger-children.visible > *:nth-child(2) { transition-delay: 120ms; }
.stagger-children.visible > *:nth-child(3) { transition-delay: 240ms; }
.stagger-children.visible > *:nth-child(4) { transition-delay: 360ms; }
.stagger-children.visible > *:nth-child(5) { transition-delay: 480ms; }
.stagger-children.visible > *:nth-child(6) { transition-delay: 600ms; }

/* ===== Delay Utilities ===== */
.delay-1 { transition-delay: 100ms; }
.delay-2 { transition-delay: 200ms; }
.delay-3 { transition-delay: 350ms; }
.delay-4 { transition-delay: 500ms; }
.delay-5 { transition-delay: 650ms; }
.delay-6 { transition-delay: 800ms; }

/* ===== Hero Text Stagger ===== */
.hero-line {
  opacity: 0;
  transform: translateY(40px);
}

.hero-line.visible {
  animation: heroLineEnter 0.7s var(--ease-out-expo) forwards;
}

@keyframes heroLineEnter {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Premium Text Reveal ===== */
.text-reveal {
  overflow: hidden;
}

.text-reveal .reveal-inner {
  display: block;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0s, transform 0.8s var(--ease-out-expo);
}

.text-reveal.visible .reveal-inner {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Premium Gradient Text ===== */
.gradient-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary), var(--color-accent));
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease-in-out infinite;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ===== Premium Float Animation ===== */
.float-anim {
  animation: float 6s ease-in-out infinite;
}

.float-anim-delayed {
  animation: float 6s ease-in-out infinite 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  33% { transform: translateY(-15px) rotate(1deg); }
  66% { transform: translateY(-5px) rotate(-1deg); }
}

/* ===== Premium Pulse Glow ===== */
.pulse-glow {
  animation: pulseGlow 3s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(37, 99, 235, 0.15); }
  50% { box-shadow: 0 0 40px rgba(37, 99, 235, 0.3); }
}

/* ===== Scroll Indicator ===== */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-muted);
  font-size: var(--text-xs);
  font-family: var(--font-display);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  animation: scrollIndicatorBounce 2.5s ease-in-out infinite;
  opacity: 0.7;
  transition: opacity var(--duration-base) ease;
}

.scroll-indicator:hover {
  opacity: 1;
}

.scroll-indicator svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  animation: scrollArrow 1.5s ease-in-out infinite;
}

@keyframes scrollIndicatorBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

@keyframes scrollArrow {
  0%, 100% { transform: translateY(0); opacity: 0.4; }
  50% { transform: translateY(6px); opacity: 1; }
}

/* ===== Page Transition ===== */
.page-enter {
  animation: pageEnter 0.5s var(--ease-out-expo);
}

@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Wipe Reveal ===== */
.wipe-reveal {
  position: relative;
  overflow: hidden;
}

.wipe-reveal::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-primary);
  transform: translateX(0);
  transition: transform 0.8s var(--ease-out-expo);
  z-index: 2;
}

.wipe-reveal.visible::after {
  transform: translateX(100%);
}

.wipe-reveal img,
.wipe-reveal .wipe-content {
  transform: scale(1.1);
  transition: transform 0.8s var(--ease-out-expo);
}

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

/* ===== Loading Skeleton ===== */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-elevated) 25%,
    var(--bg-surface) 50%,
    var(--bg-elevated) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

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

/* ===== Hover Lift ===== */
.hover-lift {
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s ease, border-color 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

/* ===== 3D Card Tilt ===== */
.card-3d {
  perspective: 1000px;
}

.card-3d-inner {
  transition: transform 0.4s var(--ease-out-expo);
  transform-style: preserve-3d;
  will-change: transform;
}

.card-3d:hover .card-3d-inner {
  transform: rotateY(3deg) rotateX(2deg);
}

/* ===== Shimmer Line ===== */
.shimmer-line {
  position: relative;
  overflow: hidden;
}

.shimmer-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  animation: shimmerLine 3s ease-in-out infinite;
}

@keyframes shimmerLine {
  0% { left: -100%; }
  100% { left: 200%; }
}

[data-theme="dark"] .shimmer-line::after {
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
}

/* ===== Counter Animation ===== */
@keyframes countUp {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

.count-animate {
  animation: countUp 0.5s var(--ease-out-expo) forwards;
}

/* ===== Carousel Slide ===== */
@keyframes carouselSlideIn {
  from {
    opacity: 0;
    transform: translateX(60px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes carouselSlideOut {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(-60px);
  }
}

/* ===== Morphing Blob ===== */
.morph-blob {
  animation: morphBlob 10s ease-in-out infinite;
  border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
}

@keyframes morphBlob {
  0% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
  25% { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; }
  50% { border-radius: 40% 60% 30% 70% / 40% 50% 70% 60%; }
  75% { border-radius: 60% 30% 50% 40% / 30% 60% 40% 70%; }
  100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
}

/* ===== Parallax Scale ===== */
.parallax-scale {
  transition: transform 0.1s linear;
}

/* ===== Ripple Effect ===== */
.ripple {
  position: relative;
  overflow: hidden;
}

.ripple::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--ripple-x, 50%) var(--ripple-y, 50%), 
              rgba(255,255,255,0.3) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.ripple:hover::after {
  opacity: 1;
}

/* ===== Header Shrink on Scroll ===== */
.nav-wrap.scrolled {
  padding: 0.3rem 0;
  box-shadow: 0 4px 30px rgba(0,0,0,0.1);
}

/* ===== Scroll Progress Bar ===== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--gradient-navy);
  z-index: 10001;
  transition: width 50ms linear;
  will-change: width;
}

/* ===== Grid Pattern Overlay ===== */
.grid-pattern {
  background-image: 
    linear-gradient(rgba(37,99,235,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

[data-theme="dark"] .grid-pattern {
  background-image: 
    linear-gradient(rgba(96,165,250,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96,165,250,0.04) 1px, transparent 1px);
}

/* ===== Noise Overlay ===== */
.noise-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.5;
  pointer-events: none;
  z-index: 1;
}

/* ===== Custom Cursor ===== */
.custom-cursor {
  position: fixed;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s ease, height 0.2s ease, background 0.2s ease, opacity 0.2s ease;
  mix-blend-mode: difference;
  opacity: 0;
}

.custom-cursor.visible {
  opacity: 1;
}

.custom-cursor.hovering {
  width: 30px;
  height: 30px;
  background: var(--color-accent);
}

.custom-cursor-follower {
  position: fixed;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--color-primary);
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.3s ease, height 0.3s ease, border-color 0.3s ease, opacity 0.3s ease;
  opacity: 0;
}

.custom-cursor-follower.visible {
  opacity: 1;
}

.custom-cursor-follower.hovering {
  width: 56px;
  height: 56px;
  border-color: var(--color-accent);
}

@media (pointer: coarse) {
  .custom-cursor,
  .custom-cursor-follower {
    display: none;
  }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  .fade-up,
  .fade-in,
  .scale-in,
  .slide-left,
  .slide-right,
  .zoom-in,
  .stagger-children > *,
  .hero-line,
  .text-reveal .reveal-inner,
  .scroll-indicator,
  .float-anim,
  .float-anim-delayed,
  .morph-blob,
  .shimmer-line::after,
  .wipe-reveal::after,
  .card-3d-inner,
  .custom-cursor,
  .custom-cursor-follower {
    animation: none !important;
    transition: none !important;
    transform: none !important;
    opacity: 1 !important;
  }
  
  .custom-cursor,
  .custom-cursor-follower {
    display: none !important;
  }
  
  .scroll-progress {
    display: none;
  }
}