/* ── Scroll Reveal Classes ── */
.reveal-fade {
  opacity: 0;
  transition: opacity 0.7s var(--ease-out);
}

.reveal-fade.is-visible {
  opacity: 1;
}

.reveal-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

/* ── Staggered reveal delays ── */
.reveal-up:nth-child(2) { transition-delay: 0.1s; }
.reveal-up:nth-child(3) { transition-delay: 0.2s; }
.reveal-up:nth-child(4) { transition-delay: 0.3s; }

/* ── Counter animation ── */
.stat-number {
  transition: color 0.3s ease;
}

/* ── Tab panel transition ── */
.tab-panel {
  animation: tabFadeIn 0.4s var(--ease-out);
}

@keyframes tabFadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Gallery track transition ── */
.gallery-track {
  transition: transform 0.5s var(--ease-out);
}

/* ── Hero particles ── */
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.3; }
  25% { transform: translateY(-15px) rotate(90deg); opacity: 0.5; }
  50% { transform: translateY(-5px) rotate(180deg); opacity: 0.2; }
  75% { transform: translateY(-20px) rotate(270deg); opacity: 0.4; }
}

.hero-particles::before,
.hero-particles::after {
  content: '';
  position: absolute;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  opacity: 0.3;
  animation: float 8s ease-in-out infinite;
}

.hero-particles::before {
  top: 20%;
  left: 15%;
  animation-delay: 0s;
}

.hero-particles::after {
  top: 60%;
  right: 20%;
  animation-delay: 3s;
  width: 4px;
  height: 4px;
}