/* ==========================================
   KUDI TECH SOLUTIONS - Animations CSS
   Smooth Transitions & Interactive Effects
   ========================================== */

/* Keyframe Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

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

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

/* Animation Classes */
.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

.animate-fade-in-left {
  animation: fadeInLeft 0.6s ease-out forwards;
}

.animate-fade-in-right {
  animation: fadeInRight 0.6s ease-out forwards;
}

.animate-scale-in {
  animation: scaleIn 0.5s ease-out forwards;
}

.animate-pulse {
  animation: pulse 2s infinite;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

/* Intersection Observer Animation Setup */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.animate-on-scroll.animate {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered Animation Delays */
.animate-on-scroll:nth-child(1) { transition-delay: 0.1s; }
.animate-on-scroll:nth-child(2) { transition-delay: 0.2s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.3s; }
.animate-on-scroll:nth-child(4) { transition-delay: 0.4s; }
.animate-on-scroll:nth-child(5) { transition-delay: 0.5s; }
.animate-on-scroll:nth-child(6) { transition-delay: 0.6s; }

/* Header Scroll Animation */
.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(20px);
}

.header.scrolled .company-name {
  font-size: 1.25rem;
}

/* Button Hover Effects */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

/* Service Card Hover Animation */
.service-card {
  position: relative;
  overflow: hidden;
}

.service-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,
    transparent,
    rgba(22, 160, 133, 0.1),
    transparent
  );
  transition: left 0.8s ease;
  z-index: 1;
}

.service-card:hover::after {
  left: 100%;
}

.service-card > * {
  position: relative;
  z-index: 2;
}

/* Loading Animation */
.loading {
  position: relative;
  overflow: hidden;
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

/* Text Animation Effects */
.typewriter {
  overflow: hidden;
  border-right: 0.15em solid var(--primary-color);
  white-space: nowrap;
  margin: 0 auto;
  letter-spacing: 0.15em;
  animation: typing 3.5s steps(40, end), blink-caret 0.75s step-end infinite;
}

@keyframes typing {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blink-caret {
  from, to { border-color: transparent; }
  50% { border-color: var(--primary-color); }
}

/* Counter Animation */
.counter {
  font-variant-numeric: tabular-nums;
}

/* Gallery Filter Animation */
.gallery-item {
  transition: all 0.5s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.gallery-item.filter-out {
  opacity: 0;
  transform: scale(0.8);
  pointer-events: none;
}

.gallery-item.filter-in {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

/* Form Focus Animation */
.form-group {
  position: relative;
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group select:focus + label {
  color: var(--primary-color);
  transform: translateY(-2px);
}

/* Parallax Effect */
.parallax {
  transform: translateZ(0);
  transition: transform 0.1s;
}

/* Smooth Scroll Indicator */
.scroll-indicator {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  z-index: 9999;
  transition: width 0.1s ease-out;
}

/* Mobile Menu Animation */
.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-menu {
  position: fixed;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  transform: translateY(0);
  transition: all 0.3s ease-in-out;
  z-index: 999;
}

.mobile-menu.active {
  transform: translateY(-100%);
}

.mobile-menu nav {
  padding: var(--spacing-xl);
}

.mobile-menu .nav-link {
  display: block;
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--gray-200);
  animation: slideDown 0.3s ease-out forwards;
}

/* Hero Image Animation */
.hero-img {
  transition: transform 0.3s ease;
}

.hero-image-container:hover .hero-img {
  transform: scale(1.02);
}

/* Icon Animations */
.service-icon {
  position: relative;
  overflow: hidden;
}

.service-icon::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transform: rotate(45deg);
  transition: all 0.5s;
  opacity: 0;
}

.service-card:hover .service-icon::before {
  animation: shine 0.8s ease-out;
}

@keyframes shine {
  0% {
    opacity: 0;
    transform: rotate(45deg) translateX(-100%);
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: rotate(45deg) translateX(100%);
  }
}

/* Stats Counter Animation */
.stat-number {
  font-variant-numeric: tabular-nums;
}

/* Footer Links Hover */
.footer-section ul li a {
  position: relative;
  display: inline-block;
}

.footer-section ul li a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--primary-light);
  transition: width 0.3s ease;
}

.footer-section ul li a:hover::after {
  width: 100%;
}

/* Contact Form Success/Error Animation */
.form-message {
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
  animation: slideDown 0.5s ease-out;
}

.form-message.success {
  background: rgba(46, 204, 113, 0.1);
  border: 1px solid rgba(46, 204, 113, 0.3);
  color: #27ae60;
}

.form-message.error {
  background: rgba(231, 76, 60, 0.1);
  border: 1px solid rgba(231, 76, 60, 0.3);
  color: #e74c3c;
}

/* Loading States */
.btn.loading {
  pointer-events: none;
  opacity: 0.7;
}

.btn.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 16px;
  margin: -8px 0 0 -8px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Page Transition */
.page-transition {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease-out;
}

.page-transition.loaded {
  opacity: 1;
  transform: translateY(0);
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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