/* =============================================================
   ANIMATIONS — keyframes & scroll-reveal utilities
   ============================================================= */

@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(109, 255, 176, 0.55); }
  70% { box-shadow: 0 0 0 8px rgba(109, 255, 176, 0); }
  100% { box-shadow: 0 0 0 0 rgba(109, 255, 176, 0); }
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

@keyframes spin-slow {
  to { transform: rotate(360deg); }
}

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

@keyframes scan {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

@keyframes fade-grid {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.9; }
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

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

.reveal--scale {
  transform: translateY(20px) scale(0.97);
}

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

.reveal--left {
  transform: translateX(-32px);
}

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

.reveal--right {
  transform: translateX(32px);
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal--scale,
  .reveal--left,
  .reveal--right {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- Typing cursor ---------- */
.type-cursor {
  display: inline-block;
  width: 3px;
  height: 1em;
  margin-left: 4px;
  background: var(--color-cyan);
  vertical-align: -0.15em;
  animation: blink 1s step-end infinite;
}

/* ---------- Marquee strip ---------- */
.marquee {
  overflow: hidden;
  width: 100%;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-4);
  background: var(--color-surface);
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 38s linear infinite;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

.marquee__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-inline: var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--fs-body-s);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.marquee__item span {
  color: var(--color-cyan);
}

.marquee__dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-text-dim);
}

@media (prefers-reduced-motion: reduce) {
  .marquee__track {
    animation: none;
  }
}

@media (max-width: 720px) {
  .reveal--left,
  .reveal--right {
    transform: translateY(24px);
  }

  .reveal--left.is-visible,
  .reveal--right.is-visible {
    transform: translateY(0);
  }
}