/* ========================================
   Animations & Keyframes
   ======================================== */

/* --- Page Fade In --- */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

body {
  animation: fadeIn 0.6s ease-out;
}

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

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

.reveal--left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal--right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

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

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

/* Stagger children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal-stagger.revealed > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.revealed > *:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger.revealed > *:nth-child(3) { transition-delay: 0.15s; }
.reveal-stagger.revealed > *:nth-child(4) { transition-delay: 0.2s; }
.reveal-stagger.revealed > *:nth-child(5) { transition-delay: 0.25s; }

.reveal-stagger.revealed > * {
  opacity: 1;
  transform: translateY(0);
}

/* --- Countdown Number Flip --- */
@keyframes countFlip {
  0% {
    transform: rotateX(0deg);
    opacity: 1;
  }
  50% {
    transform: rotateX(-90deg);
    opacity: 0;
  }
  51% {
    transform: rotateX(90deg);
    opacity: 0;
  }
  100% {
    transform: rotateX(0deg);
    opacity: 1;
  }
}

.countdown__number {
  perspective: 200px;
}

.countdown__number.flip {
  animation: countFlip 0.6s ease-in-out;
}

/* --- Hero Glow Pulse --- */
@keyframes glowPulse {
  0%, 100% {
    opacity: 0.5;
  }
  50% {
    opacity: 1;
  }
}

.hero::before {
  animation: glowPulse 4s ease-in-out infinite;
}

/* --- Float (for poster) --- */
@keyframes float {
  0%, 100% {
    transform: rotate(-2deg) translateY(0);
  }
  50% {
    transform: rotate(-2deg) translateY(-10px);
  }
}

.hero__poster img {
  animation: float 6s ease-in-out infinite;
}

.hero__poster img:hover {
  animation-play-state: paused;
}

/* --- Button Glow --- */
@keyframes btnGlow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(255, 107, 0, 0.2);
  }
  50% {
    box-shadow: 0 0 40px rgba(255, 107, 0, 0.4);
  }
}

.btn--primary {
  animation: btnGlow 3s ease-in-out infinite;
}

/* --- Sponsor Logo Entrance --- */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}