/**
 * ==============================================================================
 * KRISHNA INK - B2B INDUSTRIAL DESIGN SYSTEM
 * Animations & Micro-Interactions Stylesheet
 * ==============================================================================
 */

/* ==============================================================================
   1. KEYFRAMES LIBRARY
   ============================================================================== */

/* Fade In Up */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade In Down */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade In Left */
@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Fade In Right */
@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Fade In (Simple Opacity) */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Fade Out */
@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

/* Scale In */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Scale Out */
@keyframes scaleOut {
  from {
    opacity: 1;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(0.9);
  }
}

/* Pulse Animation */
@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.15);
  }
  100% {
    transform: scale(1);
  }
}

/* Glow Pulse Animation */
@keyframes pulseGlow {
  0% {
    box-shadow: 0 0 0 0 rgba(59, 10, 143, 0.4);
  }
  70% {
    box-shadow: 0 0 0 12px rgba(59, 10, 143, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(59, 10, 143, 0);
  }
}

/* Red Glow Pulse */
@keyframes pulseGlowRed {
  0% {
    box-shadow: 0 0 0 0 rgba(229, 9, 25, 0.5);
  }
  70% {
    box-shadow: 0 0 0 12px rgba(229, 9, 25, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(229, 9, 25, 0);
  }
}

/* Yellow Glow Pulse */
@keyframes pulseGlowYellow {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 214, 0, 0.5);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(255, 214, 0, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(255, 214, 0, 0);
  }
}

/* Spin Animation */
@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Slide Down */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Slide Up */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hero Text Dramatic Reveal */
@keyframes heroTextReveal {
  from {
    opacity: 0;
    transform: translateY(60px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Ink Droplet Impact Animation */
@keyframes inkDrop {
  0% {
    opacity: 0;
    transform: scale(0.2) translateY(-20px);
  }
  50% {
    opacity: 0.9;
    transform: scale(1.1) translateY(4px);
  }
  75% {
    transform: scale(0.95) translateY(-2px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Ink Ripple Expanding */
@keyframes inkRipple {
  0% {
    width: 0;
    height: 0;
    opacity: 0.6;
  }
  100% {
    width: 250px;
    height: 250px;
    opacity: 0;
  }
}

/* Counter Up Tabular Transition */
@keyframes counterUp {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Shimmer Loading Effect */
@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Subtle Hero Image Floating */
@keyframes floatY {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-12px);
  }
  100% {
    transform: translateY(0px);
  }
}

/* Horizontal Floating */
@keyframes floatX {
  0% {
    transform: translateX(0px);
  }
  50% {
    transform: translateX(8px);
  }
  100% {
    transform: translateX(0px);
  }
}

/* Subtle Gradient Shift */
@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* Bounce Indicator */
@keyframes bounceDown {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(8px);
  }
  60% {
    transform: translateY(4px);
  }
}

/* ==============================================================================
   2. REVEAL CLASSES (IntersectionObserver in JS)
   ============================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  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.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  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-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  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-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  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.visible {
  opacity: 1;
  transform: scale(1);
}

/* Staggered Delay Helpers */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }
.reveal-delay-7 { transition-delay: 0.7s; }
.reveal-delay-8 { transition-delay: 0.8s; }
.reveal-delay-9 { transition-delay: 0.9s; }
.reveal-delay-10 { transition-delay: 1.0s; }

/* ==============================================================================
   3. HERO ENTRANCE ANIMATIONS
   ============================================================================== */
.hero-badge {
  animation: heroTextReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

.hero-title {
  animation: heroTextReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.4s both;
}

.hero-subtitle {
  animation: heroTextReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.6s both;
}

.hero-actions {
  animation: heroTextReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.8s both;
}

.hero-stats {
  animation: heroTextReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) 1.0s both;
}

.hero-visual {
  animation: fadeInRight 1s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
}

/* ==============================================================================
   4. FLOAT ANIMATION
   ============================================================================== */
.hero-image {
  animation: floatY 5s ease-in-out infinite;
}

.floating-slow {
  animation: floatY 6s ease-in-out infinite;
}

.floating-fast {
  animation: floatY 3.5s ease-in-out infinite;
}

/* ==============================================================================
   5. PULSE ANIMATION
   ============================================================================== */
.hero-badge-dot {
  animation: pulse 2s ease-in-out infinite;
}

.pulse-indicator {
  animation: pulseGlow 2s infinite;
}

.pulse-indicator-red {
  animation: pulseGlowRed 2s infinite;
}

/* ==============================================================================
   6. INK ACCENT ANIMATIONS
   ============================================================================== */
.ink-accent-1 {
  animation: pulse 4s ease-in-out infinite;
}

.ink-accent-2 {
  animation: pulse 4s ease-in-out 2s infinite;
}

.ink-drop-element {
  animation: inkDrop 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

/* ==============================================================================
   7. COUNTER ANIMATION TARGET
   ============================================================================== */
.counter-animating {
  font-feature-settings: 'tnum';
  font-variant-numeric: tabular-nums;
  animation: counterUp 0.6s ease both;
}

/* ==============================================================================
   8. LOADING SHIMMER
   ============================================================================== */
.shimmer {
  background: linear-gradient(
    90deg,
    rgba(240, 240, 240, 0.8) 25%,
    rgba(224, 224, 224, 0.9) 50%,
    rgba(240, 240, 240, 0.8) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

.shimmer-dark {
  background: linear-gradient(
    90deg,
    rgba(40, 40, 50, 0.8) 25%,
    rgba(60, 60, 75, 0.9) 50%,
    rgba(40, 40, 50, 0.8) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

/* Skeleton Loading Helpers */
.skeleton-box {
  display: inline-block;
  height: 1em;
  position: relative;
  overflow: hidden;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-sm);
}

.skeleton-box::after {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  transform: translateX(-100%);
  background-image: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0,
    rgba(255, 255, 255, 0.4) 20%,
    rgba(255, 255, 255, 0.7) 60%,
    rgba(255, 255, 255, 0)
  );
  animation: shimmer 1.6s infinite;
  content: '';
}

/* ==============================================================================
   9. HOVER TRANSITIONS (Smooth Spring Curves)
   ============================================================================== */
.category-card,
.product-card,
.blog-card,
.feature-card,
.industry-card,
.resource-card,
.value-card,
.standard-card {
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ==============================================================================
   10. NAV OPEN OVERLAY
   ============================================================================== */
body.nav-open::after {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  content: '';
  animation: fadeIn 0.3s ease;
}

/* ==============================================================================
   11. UTILITY ANIMATION CLASSES
   ============================================================================== */
.anim-fade-in-up {
  animation: fadeInUp 0.6s ease both;
}

.anim-fade-in-down {
  animation: fadeInDown 0.6s ease both;
}

.anim-fade-in-left {
  animation: fadeInLeft 0.6s ease both;
}

.anim-fade-in-right {
  animation: fadeInRight 0.6s ease both;
}

.anim-scale-in {
  animation: scaleIn 0.5s ease both;
}

.anim-spin {
  animation: spin 1s linear infinite;
}

.anim-bounce {
  animation: bounceDown 2s infinite;
}

/* Page Transition States */
.page-transition-enter {
  opacity: 0;
  transform: translateY(16px);
}

.page-transition-enter-active {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}