/* ==========================================================================
   LETNOVA ANIMATIONS
   Scroll-driven, hover, and keyframe animations
   ========================================================================== */

/* ══════════════════════════════════════════════════════════════════════
   KEYFRAMES
   ══════════════════════════════════════════════════════════════════════ */

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

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

@keyframes bounce-top {
  0%, 100% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-6px);
  }
  50% {
    transform: translateY(-3px);
  }
  70% {
    transform: translateY(-1px);
  }
}

@keyframes pulse-gold {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(226, 180, 80, 0.4);
  }
  50% {
    box-shadow: 0 0 0 12px rgba(226, 180, 80, 0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

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

/* ══════════════════════════════════════════════════════════════════════
   SCROLL-DRIVEN ANIMATIONS (with progressive enhancement)
   ══════════════════════════════════════════════════════════════════════ */

@supports (animation-timeline: view()) {
  .ln-animate-fade-in {
    animation: fade-in-up linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 30%;
  }

  .ln-animate-slide-left {
    animation: fade-in-left linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 30%;
  }

  .ln-animate-slide-right {
    animation: fade-in-right linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 30%;
  }

  .ln-animate-scale {
    animation: scale-in linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 30%;
  }
}

/* Fallback: elements start visible when scroll-driven is unsupported */
@supports not (animation-timeline: view()) {
  .ln-animate-fade-in,
  .ln-animate-slide-left,
  .ln-animate-slide-right,
  .ln-animate-scale {
    opacity: 1;
    transform: none;
  }
}

/* ══════════════════════════════════════════════════════════════════════
   HOVER ANIMATIONS
   ══════════════════════════════════════════════════════════════════════ */

.ln-hover-lift {
  transition: transform var(--ln-duration) var(--ln-ease),
    box-shadow var(--ln-duration) var(--ln-ease);
}

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

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

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

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

.ln-hover-scale:hover {
  transform: scale(1.05);
}

/* ══════════════════════════════════════════════════════════════════════
   NAMED ANIMATION CLASSES
   ══════════════════════════════════════════════════════════════════════ */

.ln-anim-bounce {
  animation: bounce-top 2s var(--ln-ease) infinite;
}

.ln-anim-pulse-gold {
  animation: pulse-gold 2s var(--ln-ease) infinite;
}

.ln-anim-float {
  animation: float 4s ease-in-out infinite;
}

.ln-anim-shimmer {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(226, 180, 80, 0.15) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 2.5s linear infinite;
}

/* ══════════════════════════════════════════════════════════════════════
   TRANSITION UTILITIES
   ══════════════════════════════════════════════════════════════════════ */

.ln-transition {
  transition: all var(--ln-duration) var(--ln-ease);
}

.ln-transition-fast {
  transition: all var(--ln-duration-fast) var(--ln-ease);
}

.ln-transition-slow {
  transition: all var(--ln-duration-slow) var(--ln-ease);
}

/* ══════════════════════════════════════════════════════════════════════
   REDUCED MOTION
   ══════════════════════════════════════════════════════════════════════ */

/* ══════════════════════════════════════════════════════════════════════
   GSAP FALLBACK — If GSAP fails to load, make everything visible
   GSAP sets opacity:0 via JS. If it never runs, content stays hidden.
   This ensures content is visible after 3s even without GSAP.
   ══════════════════════════════════════════════════════════════════════ */

.ln-reveal,
.ln-reveal-stagger {
  animation: gsap-fallback 0s 3s forwards;
}

@keyframes gsap-fallback {
  to {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* When GSAP runs, it overrides inline styles, so this animation is harmless.
   When GSAP doesn't run, after 3s everything becomes visible. */

/* Also: ensure content is visible if JS is completely disabled */
@media (scripting: none) {
  .ln-reveal,
  .ln-reveal-stagger {
    opacity: 1 !important;
    transform: none !important;
  }
}

@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;
  }
}