/* ==============================================
   PLEADING SANITY — COSMIC ANIMATION LIBRARY v2.1-FINAL
   GPU-Accelerated • Accessible • Motion-Respectful
   Nebula • Starfield • Cyan/Magenta Glow
   Evolution, Not Erasure • pleadingSanity
============================================== */

/* ─── ALIGN WITH CORE VARIABLES ─── */
:root {
  /* Re-export from cosmic-core.css — NO DUPLICATES if already loaded */
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out-quart: cubic-bezier(0.76, 0, 0.24, 1);
  --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-cosmic: cubic-bezier(0.1, 0.8, 0.2, 1);

  --duration-fast: 200ms;
  --duration-normal: 350ms;
  --duration-slow: 600ms;
  --duration-galactic: 8s;

  /* Glow values — match core exactly */
  --glow-cyan: rgba(0, 255, 240, 0.6);
  --glow-cyan-strong: rgba(0, 255, 240, 0.8);
  --glow-fuchsia: rgba(255, 0, 255, 0.5);
  --glow-fuchsia-strong: rgba(255, 0, 255, 0.7);
  --glow-white-soft: rgba(255, 255, 255, 0.3);
}

/* ==============================================
   CORE ENTRANCE — GPU OPTIMIZED (transform + opacity only)
   ============================================== */
.animate-fade-in {
  animation: fadeIn var(--duration-normal) var(--ease-out-quart) forwards;
  opacity: 0;
}

.animate-fade-in-up {
  animation: fadeInUp var(--duration-slow) var(--ease-cosmic) forwards;
  opacity: 0;
}

.animate-fade-in-down {
  animation: fadeInDown var(--duration-slow) var(--ease-cosmic) forwards;
  opacity: 0;
}

.animate-slide-in-left {
  animation: slideInLeft var(--duration-normal) var(--ease-out-quart) forwards;
  opacity: 0;
}

.animate-slide-in-right {
  animation: slideInRight var(--duration-normal) var(--ease-out-quart) forwards;
  opacity: 0;
}

.animate-bounce-in {
  animation: bounceIn var(--duration-slow) var(--ease-out-back) forwards;
  opacity: 0;
}

/* Stagger delays — use together */
.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }

/* ==============================================
   COSMIC EFFECTS — INFINITE • SMOOTH
   ============================================== */
.animate-pulse-cyan {
  animation: pulseCyan 2.5s var(--ease-in-out-quart) infinite;
}

.animate-pulse-fuchsia {
  animation: pulseFuchsia 3s var(--ease-in-out-quart) infinite;
}

.animate-float {
  animation: float 6s var(--ease-in-out-quart) infinite;
}

.animate-float-slow {
  animation: floatSlow 10s var(--ease-in-out-quart) infinite;
}

.animate-glow-text {
  animation: glowText 3s var(--ease-in-out-quart) infinite alternate;
}

.animate-neon-border {
  animation: neonBorder 4s var(--ease-in-out-quart) infinite alternate;
}

.animate-twinkle {
  animation: twinkle 4s var(--ease-in-out-quart) infinite;
}

.animate-shooting-star {
  animation: shootStar 3s linear infinite;
}

/* ==============================================
   INTERACTIVE HOVER — RESPONSIVE • FEATHER-LIGHT
   ============================================== */
.hover-lift {
  transition: transform var(--duration-fast) var(--ease-out-quart);
}
.hover-lift:hover,
.hover-lift:focus-visible {
  transform: translateY(-5px);
}

.hover-scale {
  transition: transform var(--duration-fast) var(--ease-out-quart);
}
.hover-scale:hover,
.hover-scale:focus-visible {
  transform: scale(1.05);
}

.hover-glow-cyan {
  transition: box-shadow var(--duration-normal) var(--ease-out-quart);
}
.hover-glow-cyan:hover,
.hover-glow-cyan:focus-visible {
  box-shadow: 0 0 15px var(--glow-cyan), 0 0 30px rgba(0,255,240,0.35);
}

.hover-glow-fuchsia {
  transition: box-shadow var(--duration-normal) var(--ease-out-quart);
}
.hover-glow-fuchsia:hover,
.hover-glow-fuchsia:focus-visible {
  box-shadow: 0 0 15px var(--glow-fuchsia), 0 0 30px rgba(255,0,255,0.25);
}

.hover-shine {
  position: relative;
  overflow: hidden;
}
.hover-shine::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--glow-white-soft), transparent);
  transition: left 600ms var(--ease-out-quart);
}
.hover-shine:hover::before,
.hover-shine:focus-visible::before {
  left: 100%;
}

/* ==============================================
   SCROLL-TRIGGERED — REVEAL AS YOU GO
   ============================================== */
.observe-fade {
  opacity: 0;
  transform: translateY(25px);
  transition: 
    opacity var(--duration-slow) var(--ease-cosmic),
    transform var(--duration-slow) var(--ease-cosmic);
}
.observe-fade.visible {
  opacity: 1;
  transform: translateY(0);
}

.observe-fade-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: 
    opacity var(--duration-slow) var(--ease-out-quart),
    transform var(--duration-slow) var(--ease-out-quart);
}
.observe-fade-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.observe-fade-right {
  opacity: 0;
  transform: translateX(30px);
  transition: 
    opacity var(--duration-slow) var(--ease-out-quart),
    transform var(--duration-slow) var(--ease-out-quart);
}
.observe-fade-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.observe-scale-up {
  opacity: 0;
  transform: scale(0.92);
  transition: 
    opacity var(--duration-slow) var(--ease-out-quart),
    transform var(--duration-slow) var(--ease-out-quart);
}
.observe-scale-up.visible {
  opacity: 1;
  transform: scale(1);
}

/* ==============================================
   LOADING STATES — SKELETON SHIMMER
   ============================================== */
.loading-shimmer {
  background: linear-gradient(90deg, 
    rgba(0,255,240,0.08) 25%, 
    rgba(255,0,255,0.15) 50%, 
    rgba(0,255,240,0.08) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 2s infinite linear;
  border-radius: 4px;
}

/* ==============================================
   KEYFRAMES — ALL GPU-ACCELERATED (transform/opacity only)
   ============================================== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translate3d(0, 30px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translate3d(0, -20px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translate3d(-40px, 0, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translate3d(40px, 0, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes bounceIn {
  0% { opacity: 0; transform: scale3d(0.3, 0.3, 0.3); }
  50% { transform: scale3d(1.08, 1.08, 1.08); }
  70% { transform: scale3d(0.95, 0.95, 0.95); }
  100% { opacity: 1; transform: scale3d(1, 1, 1); }
}

@keyframes pulseCyan {
  0%, 100% {
    text-shadow: 0 0 8px var(--glow-cyan);
    opacity: 1;
  }
  50% {
    text-shadow: 0 0 20px var(--glow-cyan), 0 0 35px rgba(0,255,240,0.4);
    opacity: 0.9;
  }
}

@keyframes pulseFuchsia {
  0%, 100% {
    text-shadow: 0 0 8px var(--glow-fuchsia);
    opacity: 1;
  }
  50% {
    text-shadow: 0 0 20px var(--glow-fuchsia), 0 0 35px rgba(255,0,255,0.3);
    opacity: 0.9;
  }
}

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

@keyframes floatSlow {
  0%, 100% { transform: translateY(0px) rotate(0.5deg); }
  50% { transform: translateY(-12px) rotate(-0.5deg); }
}

@keyframes glowText {
  from {
    text-shadow: 0 0 10px currentColor, 0 0 20px currentColor;
  }
  to {
    text-shadow: 0 0 20px currentColor, 0 0 40px currentColor, 0 0 60px rgba(0,255,240,0.2);
  }
}

@keyframes neonBorder {
  from {
    box-shadow: 0 0 5px var(--glow-cyan), inset 0 0 5px rgba(0,255,240,0.1);
  }
  to {
    box-shadow: 0 0 20px var(--glow-fuchsia), inset 0 0 15px rgba(255,0,255,0.15);
  }
}

@keyframes twinkle {
  0%, 100% { opacity: 0.2; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1.2); }
}

@keyframes shootStar {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 1;
  }
  100% {
    transform: translate3d(400px, 200px, 0) scale(0.2);
    opacity: 0;
  }
}

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

@keyframes nebulaDrift {
  0% { transform: translate3d(0, 0, 0) scale(1.1); }
  50% { transform: translate3d(-2%, -1%, 0) scale(1.15); }
  100% { transform: translate3d(0, 0, 0) scale(1.1); }
}

/* ==============================================
   ACCESSIBILITY — RESPECT REDUCED 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;
  }

  .animate-pulse-cyan,
  .animate-pulse-fuchsia,
  .animate-float,
  .animate-float-slow,
  .animate-glow-text,
  .animate-twinkle,
  .animate-shooting-star,
  .loading-shimmer {
    animation: none !important;
  }

  .hover-lift:hover,
  .hover-scale:hover,
  .hover-lift:focus-visible,
  .hover-scale:focus-visible {
    transform: none;
  }

  .observe-fade,
  .observe-fade-left,
  .observe-fade-right,
  .observe-scale-up {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ==============================================
   FOCUS RINGS — KEYBOARD NAVIGATION
   ============================================== */
.focus-ring {
  transition: box-shadow var(--duration-fast) var(--ease-out-quart);
}
.focus-ring:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 255, 240, 0.5), 0 0 0 6px rgba(0, 255, 240, 0.15);
}

/* ==============================================
   GPU HINTS — SMOOTHER PERFORMANCE
   ============================================== */
.will-animate {
  will-change: transform, opacity;
}