/* =========================================================================
   ANIMATIONS (animations.css)
   HK Filtration — Subtle Professional Animations
   ========================================================================= */

/* --- Reveal (Fade In) --- */
.reveal,
.reveal-left,
.reveal-right,
.reveal-scale {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal-left {
  transform: translateX(-20px);
}

.reveal-right {
  transform: translateX(20px);
}

.reveal-scale {
  transform: scale(0.97);
}

.reveal.visible,
.reveal.revealed,
.reveal-left.visible,
.reveal-left.revealed,
.reveal-right.visible,
.reveal-right.revealed,
.reveal-scale.visible,
.reveal-scale.revealed {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
}

/* Delays */
.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }

/* --- Button Ripple --- */
.btn-ripple {
  position: relative;
  overflow: hidden;
}

.btn-ripple::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
  background: radial-gradient(circle, rgba(255,255,255,0.2) 10%, transparent 10.01%);
  background-repeat: no-repeat;
  background-position: 50%;
  transform: scale(10);
  opacity: 0;
  transition: transform 0.4s, opacity 0.6s;
}

.btn-ripple:active::after {
  transform: scale(0);
  opacity: 1;
  transition: 0s;
}