:root {
  --bg: #000;
  --glow1: rgba(120, 255, 210, 0.55); /* mint */
  --glow2: rgba(120, 160, 255, 0.45); /* blue */
  --glow3: rgba(210, 120, 255, 0.40); /* violet */
  --glow4: rgba(80, 255, 160, 0.45);  /* green */
}

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  overflow: hidden;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

/* subtle aurora haze behind text */
.haze {
  position: fixed;
  inset: -25vmax;
  background:
    radial-gradient(closest-side at 20% 30%, rgba(80,255,170,0.10), transparent 55%),
    radial-gradient(closest-side at 70% 40%, rgba(140,170,255,0.10), transparent 60%),
    radial-gradient(closest-side at 50% 75%, rgba(210,120,255,0.08), transparent 60%);
  filter: blur(40px) saturate(120%);
  animation: drift 14s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes drift {
  0%   { transform: translate3d(-2%, -1%, 0) scale(1.02); opacity: 0.65; }
  50%  { transform: translate3d( 2%,  1%, 0) scale(1.05); opacity: 0.85; }
  100% { transform: translate3d(-1%,  2%, 0) scale(1.03); opacity: 0.75; }
}

.wrap {
  height: 100%;
  display: grid;
  place-items: center;
  position: relative;
  isolation: isolate;
}

.title {
  display: inline-flex;
  gap: 0.06em;
  letter-spacing: 0.12em;
  font-weight: 700;
  font-size: clamp(40px, 8vw, 110px);
  line-height: 1;
  user-select: none;
  text-transform: uppercase;
}

.ch {
  display: inline-block;
  color: rgba(255,255,255,0.90);
  /* keep text readable while color shimmer happens via filter + shadow */
  text-shadow:
    0 0 12px rgba(255,255,255,0.10),
    0 0 26px var(--glow1),
    0 0 46px var(--glow2);
  filter: hue-rotate(var(--hue)) saturate(1.4);
  animation:
    auroraHue 6.5s ease-in-out infinite,
    auroraGlow 5.8s ease-in-out infinite;
  animation-delay: var(--d);
  will-change: filter, text-shadow, transform;
}

@keyframes auroraHue {
  0%   { --hue: 0deg;   }
  50%  { --hue: 140deg; }
  100% { --hue: 280deg; }
}

@keyframes auroraGlow {
  0% {
    transform: translateY(0px);
    text-shadow:
      0 0 10px rgba(255,255,255,0.10),
      0 0 24px var(--glow4),
      0 0 44px var(--glow2);
  }
  50% {
    transform: translateY(-1px);
    text-shadow:
      0 0 14px rgba(255,255,255,0.12),
      0 0 30px var(--glow1),
      0 0 58px var(--glow3);
  }
  100% {
    transform: translateY(0px);
    text-shadow:
      0 0 10px rgba(255,255,255,0.10),
      0 0 26px var(--glow2),
      0 0 46px var(--glow1);
  }
}

/* nicer spacing for the gap between words */
.space { width: 0.6em; }

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .haze, .ch { animation: none !important; }
}