/* Neon "Vegas" hero — the firm landing page (`/`). A self-contained dark */
/* cyan scene that does NOT invert in dark mode (it is always dark), so */
/* every colour here is a hardcoded cyan from the brand ramp rather than a */
/* Bootstrap token: #06b6d4 (cyan-500, the brand primary) and its lighter */
/* cyan-400 (#22d3ee) / cyan-300 (#67e8f9) / cyan-100 (#cffafe) tints carry */
/* the glow. All motion is decorative and is disabled wholesale under */
/* prefers-reduced-motion. The wordmark inherits Noto Serif from the page. */

.hero-neon {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 360px;
  padding: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 5vw, 3.5rem);
  overflow: hidden;
  border-radius: var(--bs-border-radius-xl, 1rem);
  background: #04161d;
  isolation: isolate;
}

/* Decorative background layers — purely visual, hidden from a11y tree. */
.hero-neon__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-neon__glow {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  bottom: 0;
  background: radial-gradient(
    ellipse 75% 90% at 50% 0%,
    rgba(34, 211, 238, 0.4),
    rgba(6, 182, 212, 0.06) 58%,
    transparent 74%
  );
}

/* Receding synthwave grid floor, scrolling toward the viewer. */
.hero-neon__grid {
  position: absolute;
  left: -30%;
  right: -30%;
  bottom: 0;
  height: 50%;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.55) 1px, transparent 1px);
  background-size: 64px 64px;
  transform: perspective(300px) rotateX(72deg);
  transform-origin: 50% 0;
  animation: hero-neon-scroll 1.7s linear infinite;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 32%, #000);
  mask-image: linear-gradient(to bottom, transparent, #000 32%, #000);
}

/* The glowing horizon line where the grid meets the sky. */
.hero-neon__horizon {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  background: linear-gradient(90deg, transparent, #22d3ee, #67e8f9, #22d3ee, transparent);
  box-shadow: 0 0 20px 3px rgba(34, 211, 238, 0.75);
}

/* A slow light sweep crossing the scene. */
.hero-neon__sweep {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 70px;
  background: linear-gradient(90deg, transparent, rgba(103, 232, 249, 0.22), transparent);
  animation: hero-neon-sweep 7s ease-in-out infinite;
}

.hero-neon__content {
  position: relative;
  z-index: 1;
}

.hero-neon__eyebrow {
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #a5f3fc;
}

/* The neon wordmark. text-shadow is an inherited property, so the inner */
/* trademark <a> and <sup> pick up the glow; the flicker rides the whole */
/* heading once (kept off the <a> to avoid compounding opacity). */
.hero-neon__mark {
  color: #ecfeff;
  text-shadow:
    0 0 6px #67e8f9,
    0 0 16px #22d3ee,
    0 0 34px #06b6d4,
    0 0 66px #0891b2;
  animation: hero-neon-flicker 5.5s linear infinite;
}

.hero-neon .hero-neon__mark a {
  color: inherit;
  text-decoration: none;
}

.hero-neon__lead {
  max-width: 34rem;
  font-size: 1.15rem;
  line-height: 1.7;
  color: #e0fbff;
}

/* Ghost CTA tuned for the dark scene; the primary CTA reuses .btn-primary. */
.hero-neon__btn-ghost {
  color: #a5f3fc;
  border: 1px solid #22d3ee;
}

.hero-neon__btn-ghost:hover,
.hero-neon__btn-ghost:focus {
  color: #04161d;
  background-color: #67e8f9;
  border-color: #67e8f9;
}

@keyframes hero-neon-scroll {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 0 64px;
  }
}

@keyframes hero-neon-flicker {
  0%,
  89%,
  100% {
    opacity: 1;
  }
  90% {
    opacity: 0.5;
  }
  91% {
    opacity: 1;
  }
  93% {
    opacity: 0.72;
  }
  94% {
    opacity: 1;
  }
}

@keyframes hero-neon-sweep {
  0% {
    transform: translateX(-40%) skewX(-16deg);
    opacity: 0;
  }
  45% {
    opacity: 0.45;
  }
  100% {
    transform: translateX(760%) skewX(-16deg);
    opacity: 0;
  }
}

/* Respect reduced-motion: freeze the grid, kill the flicker, drop the sweep. */
@media (prefers-reduced-motion: reduce) {
  .hero-neon__grid,
  .hero-neon__mark {
    animation: none;
  }
  .hero-neon__sweep {
    display: none;
  }
}