/**
 * Modern Animations & Transitions for The Kiran Group
 * Enhances UX with smooth, professional animations while maintaining legacy design.
 * Compatible with Bootstrap 3 and existing jQuery plugins.
 */

/* ========================================
   1. SCROLL-REVEAL ANIMATIONS (CSS-only, no JS dependency)
   ======================================== */

/* Base reveal class — only hide if JS has loaded (progressive enhancement) */
.js-reveal-ready .reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal.revealed {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

/* Directional reveals — only when JS loaded */
.js-reveal-ready .reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal-left.revealed {
  opacity: 1 !important;
  transform: translateX(0) !important;
}

.js-reveal-ready .reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal-right.revealed {
  opacity: 1 !important;
  transform: translateX(0) !important;
}

.js-reveal-ready .reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal-scale.revealed {
  opacity: 1 !important;
  transform: scale(1) !important;
}

/* Stagger delays for child elements */
.stagger-children > *:nth-child(1) { transition-delay: 0s; }
.stagger-children > *:nth-child(2) { transition-delay: 0.1s; }
.stagger-children > *:nth-child(3) { transition-delay: 0.2s; }
.stagger-children > *:nth-child(4) { transition-delay: 0.3s; }
.stagger-children > *:nth-child(5) { transition-delay: 0.4s; }
.stagger-children > *:nth-child(6) { transition-delay: 0.5s; }


/* ========================================
   2. ENHANCED CARD & SERVICE BOX HOVER EFFECTS
   ======================================== */

/* Modern card lift effect */
.box-icon,
.job-opening,
.toggle {
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.box-icon:hover,
.job-opening:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}

/* Service icon pulse on hover */
.box-icon i {
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              color 0.3s ease;
}
.box-icon:hover i {
  transform: scale(1.15);
}

/* Gradient underline on headings hover */
.heading-title h2,
.heading-title h3 {
  position: relative;
  display: inline-block;
}
.heading-title h2::after,
.heading-title h3::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #ec343c, #ff6b6b);
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.heading-title:hover h2::after,
.heading-title:hover h3::after {
  width: 100%;
}


/* ========================================
   3. SMOOTH NAVIGATION ENHANCEMENTS
   ======================================== */

/* Dropdown menu smooth reveal — desktop only */
@media (min-width: 769px) {
  #topMain .dropdown-menu {
    display: block;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
    pointer-events: none;
  }
  #topMain .dropdown:hover > .dropdown-menu,
  #topMain .dropdown.open > .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }

  /* Nav link underline animation — only non-dropdown links */
  #topMain > li:not(.dropdown) > a::before {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: #ec343c;
    transition: width 0.3s ease, left 0.3s ease;
  }
  #topMain > li:not(.dropdown) > a:hover::before,
  #topMain > li:not(.dropdown).active > a::before {
    width: 100%;
    left: 0;
  }
}

#topMain > li > a {
  position: relative;
}


/* ========================================
   4. BUTTON ANIMATIONS
   ======================================== */

/* Primary button hover effect */
.btn {
  position: relative;
  overflow: hidden;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              background-color 0.3s ease,
              color 0.3s ease;
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(236, 52, 60, 0.25);
}
.btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(236, 52, 60, 0.15);
}

/* Ripple effect on click */
.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.5s ease, height 0.5s ease, opacity 0.5s ease;
  opacity: 0;
}
.btn:active::after {
  width: 300px;
  height: 300px;
  opacity: 1;
  transition: 0s;
}


/* ========================================
   5. IMAGE HOVER EFFECTS
   ======================================== */

/* Modern image zoom on hover */
.img-hover-zoom {
  overflow: hidden;
  border-radius: 4px;
}
.img-hover-zoom img {
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.img-hover-zoom:hover img {
  transform: scale(1.08);
}

/* Image overlay fade */
.img-hover-overlay {
  position: relative;
  overflow: hidden;
}
.img-hover-overlay::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(236, 52, 60, 0.7) 100%);
  opacity: 0;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
  pointer-events: none;
}
.img-hover-overlay:hover::before {
  opacity: 1;
}


/* ========================================
   6. PAGE SECTION ANIMATIONS
   ======================================== */

/* Section divider animation — only breadcrumb page headers */
.page-header.page-header-xs {
  position: relative;
}
.page-header.page-header-xs::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, #ec343c, transparent);
  animation: shimmer 3s ease-in-out infinite;
}
@keyframes shimmer {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* Counter/stat number animation */
.counter-anim {
  display: inline-block;
  transition: transform 0.3s ease;
}
.counter-anim:hover {
  transform: scale(1.1);
}


/* ========================================
   7. FOOTER ENHANCEMENTS
   ======================================== */

/* Footer link hover */
#footer a {
  transition: color 0.3s ease, padding-left 0.3s ease;
}
#footer .links a:hover {
  padding-left: 6px;
  color: #ec343c;
}

/* Social icon hover */
#footer .fa-facebook-official,
#footer .fa-linkedin-square {
  transition: transform 0.3s ease, color 0.3s ease;
}
#footer .fa-facebook-official:hover,
#footer .fa-linkedin-square:hover {
  transform: scale(1.2);
  color: #ec343c !important;
}


/* ========================================
   8. FORM ENHANCEMENTS
   ======================================== */

/* Modern input focus effect */
.form-control {
  transition: border-color 0.3s ease,
              box-shadow 0.3s ease;
}
.form-control:focus {
  border-color: #ec343c;
  box-shadow: 0 0 0 3px rgba(236, 52, 60, 0.12);
}

/* Floating label effect placeholder */
.form-group label {
  transition: color 0.3s ease;
}
.form-group:focus-within label {
  color: #ec343c;
}


/* ========================================
   9. SMOOTH SCROLL-TO-TOP BUTTON
   ======================================== */

#toTop {
  transition: opacity 0.4s ease,
              transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              background-color 0.3s ease;
}
#toTop:hover {
  transform: translateY(-4px) scale(1.05);
  background-color: #ec343c;
}


/* ========================================
   10. PRELOADER ENHANCEMENT
   ======================================== */

#preloader {
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
#preloader.loaded {
  opacity: 0;
  pointer-events: none;
}

#preloader .loader {
  animation: spinner 0.7s infinite linear, pulse-glow 2s infinite ease-in-out;
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(236, 52, 60, 0.4); }
  50% { box-shadow: 0 0 20px 10px rgba(236, 52, 60, 0); }
}


/* ========================================
   11. BREADCRUMB ANIMATION
   ======================================== */

.breadcrumb li {
  transition: color 0.3s ease;
}
.breadcrumb li a {
  transition: color 0.3s ease, padding-left 0.2s ease;
}
.breadcrumb li a:hover {
  color: #ec343c;
}


/* ========================================
   12. RESPONSIVE ANIMATION ADJUSTMENTS
   ======================================== */

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-left, .reveal-right, .reveal-scale {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .box-icon:hover, .job-opening:hover {
    transform: none;
  }
  .btn:hover {
    transform: none;
  }
  @keyframes shimmer { 0%, 100% { opacity: 1; } }
  @keyframes pulse-glow { 0%, 100% { box-shadow: none; } }
}

/* Disable complex animations on mobile */
@media (max-width: 768px) {
  .reveal, .reveal-left, .reveal-right {
    transform: translateY(20px);
  }
  .box-icon:hover {
    transform: translateY(-3px);
  }
}