/* === KEYFRAMES === */

@keyframes float-lantern {
  0%, 100% { transform: translateY(0px) rotate(-2deg); }
  33% { transform: translateY(-12px) rotate(2deg); }
  66% { transform: translateY(-6px) rotate(-1deg); }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

@keyframes pulse-icon {
  0%, 100% { transform: scale(1); filter: brightness(1); }
  50% { transform: scale(1.1); filter: brightness(1.3) drop-shadow(0 0 8px rgba(0, 194, 122, 0.5)); }
}

@keyframes scroll-pulse {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.6); opacity: 0.4; }
}

@keyframes spin-reel {
  0% { transform: translateY(0); }
  100% { transform: translateY(-256px); }
}

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

@keyframes fade-in-right-kf {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes reel-spin {
  0% { transform: translateY(0); }
  100% { transform: translateY(-320px); }
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

/* === SCROLL ANIMATION CLASSES === */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  transition-delay: var(--delay, 0s);
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  transition-delay: var(--delay, 0s);
}

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

/* === REEL ANIMATION === */
.reel-column.spinning {
  animation: reel-spin 0.12s linear infinite;
}

/* === PAGE TRANSITION === */
body {
  animation: page-enter 0.4s ease both;
}

@keyframes page-enter {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* === HEADER GLOW LINE === */
.site-header.scrolled::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-jade), var(--accent-gold), var(--accent-jade), transparent);
  animation: glow-pulse 3s ease-in-out infinite;
}

/* === BUTTON ACTIVE STATE === */
.btn:active {
  transform: translateY(0px);
}

/* === LOGO ICON GLOW === */
.logo-icon {
  animation: glow-pulse 4s ease-in-out infinite;
}

/* === PARTICLE FADE === */
#particle-canvas {
  opacity: 0.6;
  transition: opacity 0.5s ease;
}