/* ==========================================================================
   SKYHAWK ANIMATIONS
   Motion as meaning — signal transmission, vigilance, precision
   ========================================================================== */

/* --------------------------------------------------------------------------
   SCROLL-TRIGGERED ANIMATIONS
   -------------------------------------------------------------------------- */

/* Fade Up - Content emerging like data surfacing */
.animate-fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}

.animate-fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered children */
.animate-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity var(--duration-normal) var(--ease-out-expo),
    transform var(--duration-normal) var(--ease-out-expo);
}

.animate-stagger.is-visible > *:nth-child(1) { transition-delay: 0ms; }
.animate-stagger.is-visible > *:nth-child(2) { transition-delay: 100ms; }
.animate-stagger.is-visible > *:nth-child(3) { transition-delay: 200ms; }
.animate-stagger.is-visible > *:nth-child(4) { transition-delay: 300ms; }
.animate-stagger.is-visible > *:nth-child(5) { transition-delay: 400ms; }
.animate-stagger.is-visible > *:nth-child(6) { transition-delay: 500ms; }

.animate-stagger.is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* Scale In */
.animate-scale-in {
  opacity: 0;
  transform: scale(0.95);
  transition:
    opacity var(--duration-normal) var(--ease-out-expo),
    transform var(--duration-normal) var(--ease-out-back);
}

.animate-scale-in.is-visible {
  opacity: 1;
  transform: scale(1);
}

/* Slide In From Left */
.animate-slide-left {
  opacity: 0;
  transform: translateX(-40px);
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}

.animate-slide-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Slide In From Right */
.animate-slide-right {
  opacity: 0;
  transform: translateX(40px);
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}

.animate-slide-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* --------------------------------------------------------------------------
   COUNTER ANIMATION
   -------------------------------------------------------------------------- */
.counter {
  --counter-value: 0;
  counter-reset: count var(--counter-value);
}

.counter::after {
  content: counter(count);
}

/* --------------------------------------------------------------------------
   PULSE ANIMATION - Radar-like for active monitoring
   -------------------------------------------------------------------------- */
@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.8;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* Pulse Ring - expanding circle effect */
@keyframes pulse-ring {
  0% {
    transform: scale(0.8);
    opacity: 1;
  }
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

.pulse-ring {
  position: relative;
}

.pulse-ring::before,
.pulse-ring::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid var(--sky-signal);
  border-radius: 50%;
  animation: pulse-ring 2s ease-out infinite;
}

.pulse-ring::after {
  animation-delay: 1s;
}

/* --------------------------------------------------------------------------
   SIGNAL LINE ANIMATION
   -------------------------------------------------------------------------- */
@keyframes signal-travel {
  0% {
    transform: translateX(-100%);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateX(100%);
    opacity: 0;
  }
}

.signal-line {
  position: relative;
  overflow: hidden;
}

.signal-line::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--sky-signal) 50%,
    transparent 100%
  );
  transform: translateY(-50%);
  animation: signal-travel 3s ease-in-out infinite;
}

/* --------------------------------------------------------------------------
   GLOW PULSE
   -------------------------------------------------------------------------- */
@keyframes glow-pulse {
  0%, 100% {
    box-shadow: 0 0 20px var(--sky-signal-glow);
  }
  50% {
    box-shadow: 0 0 40px var(--sky-signal-glow), 0 0 60px rgba(0, 212, 255, 0.2);
  }
}

.animate-glow {
  animation: glow-pulse 3s ease-in-out infinite;
}

/* --------------------------------------------------------------------------
   TYPING INDICATOR
   -------------------------------------------------------------------------- */
@keyframes typing-dot {
  0%, 60%, 100% {
    transform: translateY(0);
    opacity: 0.5;
  }
  30% {
    transform: translateY(-4px);
    opacity: 1;
  }
}

.typing-indicator {
  display: flex;
  gap: 4px;
  padding: var(--space-2);
}

.typing-indicator span {
  width: 8px;
  height: 8px;
  background: var(--sky-signal);
  border-radius: 50%;
  animation: typing-dot 1.4s ease-in-out infinite;
}

.typing-indicator span:nth-child(1) { animation-delay: 0ms; }
.typing-indicator span:nth-child(2) { animation-delay: 200ms; }
.typing-indicator span:nth-child(3) { animation-delay: 400ms; }

/* --------------------------------------------------------------------------
   HERO ANIMATIONS
   -------------------------------------------------------------------------- */
.hero__content {
  animation: hero-fade-in 1s var(--ease-out-expo) forwards;
}

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

.hero__tagline {
  animation: hero-fade-in 0.8s var(--ease-out-expo) 0.2s forwards;
  opacity: 0;
}

.hero__title {
  animation: hero-fade-in 0.8s var(--ease-out-expo) 0.4s forwards;
  opacity: 0;
}

.hero__subtitle {
  animation: hero-fade-in 0.8s var(--ease-out-expo) 0.6s forwards;
  opacity: 0;
}

.hero__ctas {
  animation: hero-fade-in 0.8s var(--ease-out-expo) 0.8s forwards;
  opacity: 0;
}

/* Grid background animation */
@keyframes grid-fade {
  0%, 100% {
    opacity: 0.3;
  }
  50% {
    opacity: 0.6;
  }
}

.hero__grid {
  animation: grid-fade 8s ease-in-out infinite;
}

/* --------------------------------------------------------------------------
   FLOATING ELEMENTS
   -------------------------------------------------------------------------- */
@keyframes float-slow {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-10px) rotate(1deg);
  }
  75% {
    transform: translateY(10px) rotate(-1deg);
  }
}

.animate-float {
  animation: float-slow 6s ease-in-out infinite;
}

.animate-float-delayed {
  animation: float-slow 6s ease-in-out 2s infinite;
}

/* --------------------------------------------------------------------------
   CARD HOVER EFFECTS
   -------------------------------------------------------------------------- */
.card-hover {
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.card-hover:hover {
  transform: translateY(-8px);
}

/* Icon rotation on card hover */
.card-hover:hover .card-hover__icon {
  transform: rotate(10deg) scale(1.1);
}

.card-hover__icon {
  transition: transform var(--duration-normal) var(--ease-out-back);
}

/* --------------------------------------------------------------------------
   BUTTON ANIMATIONS
   -------------------------------------------------------------------------- */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s var(--ease-out-expo), height 0.6s var(--ease-out-expo);
}

.btn:active::before {
  width: 300%;
  height: 300%;
}

/* --------------------------------------------------------------------------
   LOADING STATES
   -------------------------------------------------------------------------- */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--sky-navy-70);
  border-top-color: var(--sky-signal);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* --------------------------------------------------------------------------
   PARALLAX HELPERS
   -------------------------------------------------------------------------- */
.parallax-slow {
  will-change: transform;
}

.parallax-medium {
  will-change: transform;
}

.parallax-fast {
  will-change: transform;
}

/* --------------------------------------------------------------------------
   REDUCED MOTION
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .animate-fade-up,
  .animate-stagger > *,
  .animate-scale-in,
  .animate-slide-left,
  .animate-slide-right {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .animate-pulse,
  .animate-glow,
  .animate-float,
  .animate-float-delayed,
  .pulse-ring::before,
  .pulse-ring::after,
  .signal-line::after,
  .hero__grid,
  .typing-indicator span {
    animation: none;
  }

  .hero__content,
  .hero__tagline,
  .hero__title,
  .hero__subtitle,
  .hero__ctas {
    opacity: 1;
    animation: none;
  }
}

/* --------------------------------------------------------------------------
   INTERSECTION OBSERVER HELPERS
   -------------------------------------------------------------------------- */
[data-animate] {
  opacity: 0;
}

[data-animate="fade-up"] {
  transform: translateY(30px);
}

[data-animate="scale"] {
  transform: scale(0.95);
}

[data-animate].animated {
  opacity: 1;
  transform: none;
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
}