/* ROOTMARE - KEYFRAME ANIMATIONS & SCROLL-TRIGGER SYSTEM */

/* --- KEYFRAME DEFINITIONS --- */
@keyframes ticker-slide {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes radar-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

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

@keyframes hero-fade-in-right {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes cyber-pulse {
  0%, 100% {
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
  }
  50% {
    box-shadow: 0 0 35px rgba(0, 240, 255, 0.7), 0 0 15px rgba(0, 255, 136, 0.4);
  }
}

@keyframes shield-glow {
  0%, 100% {
    filter: drop-shadow(0 0 10px rgba(0, 240, 255, 0.4));
  }
  50% {
    filter: drop-shadow(0 0 25px rgba(0, 240, 255, 0.8)) drop-shadow(0 0 35px rgba(0, 255, 136, 0.4));
  }
}

/* --- SCROLL-TRIGGER SYSTEM (INTERSECTION OBSERVER) --- */
/* Elements with .reveal start hidden and slide up with fade */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1), transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered Children Cascading Effect */
.stagger-container .reveal-child {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: calc(var(--stagger-index, 0) * 120ms);
  will-change: opacity, transform;
}

.stagger-container.in-view .reveal-child {
  opacity: 1;
  transform: translateY(0);
}

/* Subtle Shimmer Overlay on hoverable elements */
.shimmer-sweep {
  position: relative;
  overflow: hidden;
}

.shimmer-sweep::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    60deg,
    transparent 45%,
    rgba(0, 240, 255, 0.08) 50%,
    transparent 55%
  );
  transform: rotate(30deg) translate(-100%, -100%);
  transition: transform 0.8s ease;
  pointer-events: none;
}

.shimmer-sweep:hover::after {
  transform: rotate(30deg) translate(100%, 100%);
}

/* --- ACCESSIBILITY / PREFERS-REDUCED-MOTION FALLBACK --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .reveal,
  .stagger-container .reveal-child {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .ticker-content {
    animation: none !important;
    overflow-x: auto;
  }
}