/* ------------------------------------------------------------------------
   Keyframes
   ------------------------------------------------------------------------ */
@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.55; }
  80% { transform: scale(1.6); opacity: 0; }
  100% { transform: scale(1.6); opacity: 0; }
}

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@keyframes scroll-line {
  0% { top: -40px; }
  100% { top: 40px; }
}

@keyframes preloader-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(0.82); opacity: 0.6; }
}

@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

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

/* ------------------------------------------------------------------------
   Scroll reveal (driven by IntersectionObserver toggling .is-visible)
   ------------------------------------------------------------------------ */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal="fade"] {
  transform: none;
}

[data-reveal="left"] {
  transform: translateX(-32px);
}
[data-reveal="left"].is-visible {
  transform: translateX(0);
}

[data-reveal="right"] {
  transform: translateX(32px);
}
[data-reveal="right"].is-visible {
  transform: translateX(0);
}

[data-reveal="scale"] {
  transform: scale(0.92);
}
[data-reveal="scale"].is-visible {
  transform: scale(1);
}

/* Stagger children automatically via inline --delay custom property */
[data-reveal] {
  transition-delay: var(--delay, 0s);
}

.float {
  animation: float-y 5s var(--ease-in-out) infinite;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}