/* ============================================
   ANIMATIONS — Keyframes, Scroll Reveal, Hover
   ============================================ */

/* ---- Keyframe Animations ---- */
@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-down {
  from {
    opacity: 0;
    transform: translateY(-24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-left {
  from {
    opacity: 0;
    transform: translateX(24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fade-right {
  from {
    opacity: 0;
    transform: translateX(-24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.92);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float-orb {
  0%, 100% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(15px, -20px);
  }
  50% {
    transform: translate(-10px, 15px);
  }
  75% {
    transform: translate(20px, 10px);
  }
}

@keyframes pulse-dot {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.5);
  }
}

@keyframes counter-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

@keyframes slide-in-right {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slide-in-left {
  from {
    opacity: 0;
    transform: translateX(-100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ---- Scroll Reveal Classes ---- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slower) var(--ease-out),
              transform var(--duration-slower) var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--left {
  transform: translateX(-24px);
}

.reveal--left.visible {
  transform: translateX(0);
}

.reveal--right {
  transform: translateX(24px);
}

.reveal--right.visible {
  transform: translateX(0);
}

.reveal--scale {
  transform: scale(0.95);
}

.reveal--scale.visible {
  transform: scale(1);
}

/* Stagger delays for child elements */
.reveal--stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-slower) var(--ease-out),
              transform var(--duration-slower) var(--ease-out);
}

.reveal--stagger.visible > *:nth-child(1) { transition-delay: 0ms; opacity: 1; transform: translateY(0); }
.reveal--stagger.visible > *:nth-child(2) { transition-delay: 80ms; opacity: 1; transform: translateY(0); }
.reveal--stagger.visible > *:nth-child(3) { transition-delay: 160ms; opacity: 1; transform: translateY(0); }
.reveal--stagger.visible > *:nth-child(4) { transition-delay: 240ms; opacity: 1; transform: translateY(0); }
.reveal--stagger.visible > *:nth-child(5) { transition-delay: 320ms; opacity: 1; transform: translateY(0); }
.reveal--stagger.visible > *:nth-child(6) { transition-delay: 400ms; opacity: 1; transform: translateY(0); }

/* Specific delay utilities */
.delay-1 { transition-delay: 100ms !important; }
.delay-2 { transition-delay: 200ms !important; }
.delay-3 { transition-delay: 300ms !important; }
.delay-4 { transition-delay: 400ms !important; }
.delay-5 { transition-delay: 500ms !important; }

/* ---- Hero Entrance Animation ---- */
.hero__badge { animation: fade-up 0.6s var(--ease-out) 0.1s both; }
.hero__title { animation: fade-up 0.7s var(--ease-out) 0.2s both; }
.hero__subtitle { animation: fade-up 0.7s var(--ease-out) 0.35s both; }
.hero__actions { animation: fade-up 0.7s var(--ease-out) 0.5s both; }
.hero__stats { animation: fade-up 0.7s var(--ease-out) 0.65s both; }
.hero__decor { animation: fade-in 1s var(--ease-out) 0.4s both; }

/* ---- Hover Micro-interactions ---- */
.hover-lift {
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.hover-glow {
  transition: box-shadow var(--duration-normal) var(--ease-out);
}

.hover-glow:hover {
  box-shadow: var(--shadow-accent);
}

.hover-scale {
  transition: transform var(--duration-normal) var(--ease-spring);
}

.hover-scale:hover {
  transform: scale(1.03);
}

/* ---- Link Underline Animation ---- */
.link-animated {
  position: relative;
  display: inline-block;
}

.link-animated::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: var(--radius-full);
  transition: width var(--duration-normal) var(--ease-out);
}

.link-animated:hover::after {
  width: 100%;
}

/* ---- Loading Skeleton ---- */
.skeleton {
  background: linear-gradient(90deg, 
    var(--bg-tertiary) 25%, 
    var(--bg-secondary) 50%, 
    var(--bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

/* ---- Reduce Motion ---- */
@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 {
    opacity: 1;
    transform: none;
  }

  .reveal--stagger > * {
    opacity: 1;
    transform: none;
  }
}