/* ==========================================================
   THEME ANIMATIONS
   Scroll animations, transitions, keyframes
   ========================================================== */

/* -------------------------------------------------------
   Fade-in animations (triggered by IntersectionObserver)
   ------------------------------------------------------- */
.fade-in {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .9s var(--ease-out), transform .9s var(--ease-out);
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

.fade-in-left { opacity: 0; transform: translateX(-40px); transition: opacity .8s ease-out, transform .8s ease-out; }
.fade-in-left.visible { opacity: 1; transform: translateX(0); }

.fade-in-right { opacity: 0; transform: translateX(40px); transition: opacity .8s ease-out, transform .8s ease-out; }
.fade-in-right.visible { opacity: 1; transform: translateX(0); }

.scale-in { opacity: 0; transform: scale(.9); transition: opacity .7s ease-out, transform .7s ease-out; }
.scale-in.visible { opacity: 1; transform: scale(1); }


/* -------------------------------------------------------
   Stagger children
   ------------------------------------------------------- */
.stagger-children > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .65s ease-out, transform .65s ease-out;
}
.stagger-children.visible > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(2) { transition-delay: .08s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(3) { transition-delay: .16s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(4) { transition-delay: .24s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(5) { transition-delay: .32s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(6) { transition-delay: .40s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(7) { transition-delay: .48s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(8) { transition-delay: .56s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(9) { transition-delay: .64s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(10) { transition-delay: .72s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(11) { transition-delay: .80s; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(12) { transition-delay: .88s; opacity: 1; transform: translateY(0); }


/* -------------------------------------------------------
   Scroll progress bar
   ------------------------------------------------------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent), #7CB8F2);
  z-index: 9999;
  transform-origin: left;
  transform: scaleX(0);
  transition: none;
  box-shadow: 0 1px 8px rgba(var(--color-accent-rgb), .4);
}


/* -------------------------------------------------------
   Keyframe animations
   ------------------------------------------------------- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

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

@keyframes slideInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleUp {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes ripple {
  0% { transform: scale(0); opacity: 0.5; }
  100% { transform: scale(4); opacity: 0; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}


/* -------------------------------------------------------
   Reduced motion
   ------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .fade-in, .fade-in-left, .fade-in-right, .scale-in { opacity: 1; transform: none; }
  .stagger-children > * { opacity: 1; transform: none; }
  .hero-float { animation: none; }
  .page-transition-overlay { display: none !important; }
}