.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}

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

.reveal[data-reveal-delay="1"] {
  transition-delay: 90ms;
}
.reveal[data-reveal-delay="2"] {
  transition-delay: 180ms;
}
.reveal[data-reveal-delay="3"] {
  transition-delay: 270ms;
}

.reveal-line {
  display: block;
  overflow: hidden;
}

.reveal-line span {
  display: block;
  transform: translateY(110%);
  transition: transform var(--dur-slow) var(--ease-out);
}

.reveal-line.is-visible span {
  transform: translateY(0);
}

/* ---------- Nav toggle open state ---------- */

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Marquee ---------- */

.marquee-track {
  animation: marquee 26s linear infinite;
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* ---------- Scroll cue ---------- */

.scroll-line i {
  animation: scroll-cue 2.2s var(--ease-in-out) infinite;
}

@keyframes scroll-cue {
  0% {
    top: -100%;
  }
  50% {
    top: 0%;
  }
  100% {
    top: 100%;
  }
}

/* ---------- Embers ---------- */

.hero-embers span {
  position: absolute;
  bottom: -10px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--ember-glow);
  box-shadow: 0 0 8px 2px rgba(255, 179, 71, 0.7);
  opacity: 0;
  animation: ember-rise linear infinite;
}

@keyframes ember-rise {
  0% {
    opacity: 0;
    transform: translateY(0) translateX(0) scale(1);
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 0.6;
  }
  100% {
    opacity: 0;
    transform: translateY(-100vh) translateX(var(--drift, 40px)) scale(0.4);
  }
}

/* ---------- Header entrance ---------- */

.site-header {
  animation: header-drop var(--dur-slow) var(--ease-out);
}

@keyframes header-drop {
  from {
    transform: translateY(-100%);
  }
  to {
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .marquee-track,
  .scroll-line i,
  .hero-embers span,
  .site-header {
    animation: none;
  }

  .reveal,
  .reveal-line span {
    opacity: 1;
    transform: none;
  }
}