/* =========================================================
   MTLS — Animation Layer
   Scroll reveals, hovers, keyframes, loaders
   ========================================================= */

/* -----------------------------------------------------------
   Scroll Reveal (toggled by main.js via IntersectionObserver)
   ----------------------------------------------------------- */
[data-aos] {
  opacity: 0;
  transition-property: opacity, transform;
  transition-duration: 0.8s;
  transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

[data-aos].aos-in { opacity: 1; transform: none !important; }

[data-aos="fade-up"] { transform: translateY(50px); }
[data-aos="fade-down"] { transform: translateY(-50px); }
[data-aos="fade-left"] { transform: translateX(50px); }
[data-aos="fade-right"] { transform: translateX(-50px); }
[data-aos="zoom-in"] { transform: scale(0.85); }
[data-aos="flip-up"] { transform: perspective(800px) rotateX(20deg); }

/* Stagger helper delays set via inline style [data-aos-delay] handled in JS,
   fallback classes below for markup convenience */
.aos-delay-1 { transition-delay: 0.1s; }
.aos-delay-2 { transition-delay: 0.2s; }
.aos-delay-3 { transition-delay: 0.3s; }
.aos-delay-4 { transition-delay: 0.4s; }
.aos-delay-5 { transition-delay: 0.5s; }
.aos-delay-6 { transition-delay: 0.6s; }

/* -----------------------------------------------------------
   Keyframes
   ----------------------------------------------------------- */
@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes pulse-wa {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.55); }
  70% { box-shadow: 0 0 0 16px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

@keyframes floatX {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(14px); }
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes ripple {
  0% { transform: scale(0.9); opacity: 1; }
  100% { transform: scale(1.6); opacity: 0; }
}

@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes shimmer {
  0% { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}

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

/* -----------------------------------------------------------
   Applied Animation Utility Classes
   ----------------------------------------------------------- */
.float-anim { animation: floatY 4.5s ease-in-out infinite; }
.float-anim-x { animation: floatX 5s ease-in-out infinite; }
.float-anim-slow { animation: floatY 7s ease-in-out infinite; }

.pulse-ring {
  position: relative;
}
.pulse-ring::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 2px solid var(--color-accent);
  animation: ripple 2.2s ease-out infinite;
}

/* Scroll down indicator on hero */
.scroll-indicator {
  position: absolute;
  bottom: 34px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  color: rgba(255, 255, 255, 0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.scroll-indicator i { animation: bounceArrow 1.8s ease-in-out infinite; font-size: 18px; }

/* Fade-in on load for hero content (independent of scroll observer) */
.hero-content > * {
  opacity: 0;
  animation: fadeSlideIn 0.9s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.hero-content .hero-badge { animation-delay: 0.1s; }
.hero-content h1 { animation-delay: 0.25s; }
.hero-content p { animation-delay: 0.4s; }
.hero-content .hero-cta-group { animation-delay: 0.55s; }

/* Logo ticker (client logos infinite scroll) */
.logo-ticker-track {
  display: flex;
  width: max-content;
  animation: ticker 26s linear infinite;
}
.logo-ticker-wrap { overflow: hidden; }
.logo-ticker-wrap:hover .logo-ticker-track { animation-play-state: paused; }

/* Skeleton shimmer (used while counters / async content not yet triggered) */
.skeleton-shimmer {
  background: linear-gradient(90deg, var(--color-light-bg) 0%, #eef1f7 50%, var(--color-light-bg) 100%);
  background-size: 800px 100%;
  animation: shimmer 1.6s linear infinite;
}

/* Icon rotate hover */
.rotate-hover { transition: transform 0.5s ease; }
.rotate-hover:hover { transform: rotate(360deg); }

/* Card tilt hover (subtle) */
.tilt-hover { transition: transform 0.4s ease, box-shadow 0.4s ease; }
.tilt-hover:hover { transform: perspective(1000px) rotateX(2deg) rotateY(-2deg) translateY(-6px); }

/* Underline draw effect for footer/inline links */
.underline-draw {
  position: relative;
  display: inline-block;
}
.underline-draw::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 2px;
  background: currentColor;
  transition: width 0.35s ease;
}
.underline-draw:hover::after { width: 100%; }

/* Image reveal mask (used on about / gallery images entering viewport) */
.img-reveal {
  position: relative;
  overflow: hidden;
}
.img-reveal::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-primary);
  transform: scaleX(1);
  transform-origin: right;
  z-index: 2;
  transition: transform 0.9s cubic-bezier(0.85, 0, 0.15, 1);
}
.img-reveal.aos-in::before,
[data-aos].aos-in .img-reveal::before { transform: scaleX(0); }

/* Number count pop */
.count-pop { animation: fadeSlideIn 0.6s ease both; }

/* Reduced motion accessibility */
@media (prefers-reduced-motion: reduce) {
  [data-aos], .float-anim, .float-anim-x, .float-anim-slow, .pulse-ring::before,
  .hero-content > *, .logo-ticker-track {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}