@keyframes aurora-drift {
  from { transform: translate3d(-2%, 0, 0) scale(1); }
  to { transform: translate3d(3%, 4%, 0) scale(1.05); }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.75); }
}

@keyframes brand-breathe {
  0%, 100% {
    text-shadow:
      0 0 40px rgba(255, 9, 1, 0.4),
      0 0 80px rgba(205, 0, 254, 0.3),
      0 0 120px rgba(103, 0, 205, 0.2);
  }
  50% {
    text-shadow:
      0 0 56px rgba(255, 9, 1, 0.65),
      0 0 110px rgba(205, 0, 254, 0.45),
      0 0 160px rgba(103, 0, 205, 0.35);
  }
}

@keyframes beam-slide-a {
  0%, 100% { opacity: 0.2; transform: rotate(-18deg) translateX(-4%); }
  50% { opacity: 0.7; transform: rotate(-18deg) translateX(4%); }
}

@keyframes beam-slide-b {
  0%, 100% { opacity: 0.15; transform: rotate(12deg) translateX(3%); }
  50% { opacity: 0.5; transform: rotate(12deg) translateX(-3%); }
}

@keyframes beam-slide-c {
  0%, 100% { opacity: 0.12; transform: rotate(-8deg) translateX(-2%); }
  50% { opacity: 0.4; transform: rotate(-8deg) translateX(3%); }
}

@keyframes hero-trail-sweep {
  0% { stroke-dashoffset: 1800; opacity: 0; }
  12% { opacity: 0.55; }
  42% { stroke-dashoffset: 0; opacity: 0.7; }
  70% { opacity: 0.35; }
  100% { stroke-dashoffset: -1800; opacity: 0; }
}

@keyframes hero-core-flow {
  0% { stroke-dashoffset: 0; opacity: 0.15; }
  50% { opacity: 0.4; }
  100% { stroke-dashoffset: -900; opacity: 0.15; }
}

@keyframes frame-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

@keyframes trail-sweep {
  0% {
    stroke-dashoffset: 1400;
    opacity: 0;
  }
  15% {
    opacity: 0.45;
  }
  45% {
    stroke-dashoffset: 0;
    opacity: 0.55;
  }
  70% {
    opacity: 0.35;
  }
  100% {
    stroke-dashoffset: -1400;
    opacity: 0;
  }
}

@keyframes core-flow {
  0% {
    stroke-dashoffset: 0;
    opacity: 0.12;
  }
  50% {
    opacity: 0.3;
  }
  100% {
    stroke-dashoffset: -800;
    opacity: 0.12;
  }
}

@keyframes glow-pulse-a {
  0%, 100% { opacity: 0.1; transform: scale(1); }
  50% { opacity: 0.25; transform: scale(1.1); }
}

@keyframes glow-pulse-b {
  0%, 100% { opacity: 0.05; transform: scale(1.1); }
  50% { opacity: 0.15; transform: scale(1); }
}

@keyframes particle-float {
  0% { opacity: 0; transform: scale(0) translate(0, 0); }
  20% { opacity: 0.4; transform: scale(1); }
  80% { opacity: 0.2; }
  100% { opacity: 0; transform: scale(0) translate(40px, -60px); }
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.hero__content .reveal:nth-child(1) { transition-delay: 0.05s; }
.hero__content .reveal:nth-child(2) { transition-delay: 0.15s; }
.hero__content .reveal:nth-child(3) { transition-delay: 0.25s; }
.hero__content .reveal:nth-child(4) { transition-delay: 0.35s; }
.hero__content .reveal:nth-child(5) { transition-delay: 0.5s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .trail,
  .trail-core,
  .hero-trail,
  .hero-trail--core {
    stroke-dashoffset: 0;
    opacity: 0.35;
  }

  .hero__brand {
    animation: none;
  }
}