/* =========================================================
   BoomArena — Animations
   ========================================================= */

/* ── Keyframes ── */
@keyframes preloader-fill {
  0% { width: 0%; }
  50% { width: 70%; }
  100% { width: 100%; }
}

@keyframes pulse-glow {
  0%, 100% {
    filter: brightness(1) drop-shadow(0 0 10px rgba(0, 229, 255, 0.3));
  }
  50% {
    filter: brightness(1.2) drop-shadow(0 0 25px rgba(0, 229, 255, 0.6));
  }
}

@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pageExit {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-20px);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

@keyframes float-slow {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(2deg); }
}

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

@keyframes glow-pulse {
  0%, 100% {
    box-shadow: 0 0 5px rgba(0, 229, 255, 0.2), 0 0 20px rgba(0, 229, 255, 0.1);
  }
  50% {
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.4), 0 0 40px rgba(0, 229, 255, 0.2);
  }
}

@keyframes neon-flicker {
  0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
    text-shadow:
      0 0 4px rgba(0, 229, 255, 0.6),
      0 0 11px rgba(0, 229, 255, 0.4),
      0 0 19px rgba(0, 229, 255, 0.3),
      0 0 40px rgba(0, 229, 255, 0.2);
  }
  20%, 24%, 55% {
    text-shadow: none;
  }
}

@keyframes slide-in-left {
  from {
    opacity: 0;
    transform: translateX(-60px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slide-in-right {
  from {
    opacity: 0;
    transform: translateX(60px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.85);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

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

@keyframes explosion-ring {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(3);
    opacity: 0;
  }
}

@keyframes streak {
  0% {
    transform: translateX(-100%) scaleX(0);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateX(100vw) scaleX(1);
    opacity: 0;
  }
}

@keyframes typing {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blink-caret {
  from, to { border-color: transparent; }
  50% { border-color: var(--neon-blue); }
}

@keyframes grid-line-h {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes grid-line-v {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

@keyframes border-dance {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes bounce-in {
  0% { transform: scale(0); opacity: 0; }
  50% { transform: scale(1.15); }
  70% { transform: scale(0.95); }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
  20%, 40%, 60%, 80% { transform: translateX(4px); }
}

@keyframes reveal-blur {
  0% { filter: blur(12px); opacity: 0; transform: scale(0.95); }
  100% { filter: blur(0); opacity: 1; transform: scale(1); }
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes particle-float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); opacity: 0.6; }
  25% { transform: translate(10px, -20px) rotate(90deg); opacity: 1; }
  50% { transform: translate(-5px, -35px) rotate(180deg); opacity: 0.8; }
  75% { transform: translate(15px, -50px) rotate(270deg); opacity: 0.4; }
}

@keyframes ripple {
  0% { transform: scale(0); opacity: 0.6; }
  100% { transform: scale(4); opacity: 0; }
}

@keyframes pulse-scale {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

@keyframes text-glow {
  0%, 100% { text-shadow: 0 0 4px currentColor; }
  50% { text-shadow: 0 0 16px currentColor, 0 0 32px currentColor; }
}

/* ── Animation Utilities ── */
.animate-float {
  animation: float 4s ease-in-out infinite;
}

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

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

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

.animate-shimmer {
  background-size: 200% auto;
  animation: shimmer 3s linear infinite;
}

.animate-neon-flicker {
  animation: neon-flicker 4s linear infinite;
}

.animate-rotate-slow {
  animation: rotate-slow 20s linear infinite;
}

.animate-bounce-in {
  animation: bounce-in 0.6s cubic-bezier(0.19, 1, 0.22, 1) forwards;
}

.animate-shake {
  animation: shake 0.5s ease-in-out;
}

.animate-reveal-blur {
  animation: reveal-blur 0.6s ease forwards;
}

.animate-gradient-shift {
  background-size: 200% 200%;
  animation: gradient-shift 4s ease infinite;
}

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

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Stagger delays */
.delay-1 { transition-delay: 0.1s !important; }
.delay-2 { transition-delay: 0.2s !important; }
.delay-3 { transition-delay: 0.3s !important; }
.delay-4 { transition-delay: 0.4s !important; }
.delay-5 { transition-delay: 0.5s !important; }
.delay-6 { transition-delay: 0.6s !important; }

/* ── Transition overlay ── */
.page-transition-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg-primary);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.page-transition-overlay.active {
  opacity: 1;
  pointer-events: all;
}

/* ── Reduced Motion — Accessibility ── */
@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;
  }
}