/**
 * KM Technolabs — Animations
 * Hardware-accelerated, Intersection Observer driven
 */

:root {
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration: 0.7s;
}

/* Base reveal states */
[data-animate] {
  opacity: 0;
  will-change: transform, opacity;
  transition:
    opacity var(--duration) var(--ease-out),
    transform var(--duration) var(--ease-out);
}

[data-animate].is-visible {
  opacity: 1;
  transform: none;
}

[data-animate="fade-up"] { transform: translate3d(0, 40px, 0); }
[data-animate="fade-left"] { transform: translate3d(-40px, 0, 0); }
[data-animate="fade-right"] { transform: translate3d(40px, 0, 0); }
[data-animate="zoom"] { transform: scale(0.92); }
[data-animate="fade"] { transform: none; }

/* Stagger helpers */
[data-delay="1"] { transition-delay: 0.08s; }
[data-delay="2"] { transition-delay: 0.16s; }
[data-delay="3"] { transition-delay: 0.24s; }
[data-delay="4"] { transition-delay: 0.32s; }
[data-delay="5"] { transition-delay: 0.4s; }
[data-delay="6"] { transition-delay: 0.48s; }

/* Hover lift */
.hover-lift {
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

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

/* Floating polygons */
@keyframes float-y {
  0%, 100% { transform: translate3d(0, 0, 0) rotate(0deg); }
  50% { transform: translate3d(0, -18px, 0) rotate(3deg); }
}

@keyframes float-x {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(14px, -10px, 0); }
}

@keyframes pulse-soft {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50% { opacity: 0.85; transform: scale(1.04); }
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

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

.float-y { animation: float-y 7s ease-in-out infinite; }
.float-x { animation: float-x 9s ease-in-out infinite; }
.float-delay-1 { animation-delay: -2s; }
.float-delay-2 { animation-delay: -4s; }
.pulse-soft { animation: pulse-soft 5s ease-in-out infinite; }

/* Parallax shapes container */
.parallax-shapes {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.parallax-shapes .shape {
  position: absolute;
  will-change: transform;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  [data-animate],
  .float-y,
  .float-x,
  .pulse-soft,
  .hover-lift,
  .btn,
  .card {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}