/**
 * Carousel Section Styles
 * "Tech Authority" — bold, layered, cinematic hero carousel
 */

/* ── Section wrapper ─────────────────────────────────────────── */
.carousel-section {
  padding-block: 0;
}

/* Whole slide is clickable when a link is set */
.carousel-item--linked {
  cursor: pointer;
}

/* ── Hero Carousel ──────────────────────────────────────────── */
.carousel-hero {
  position: relative;
  width: 100%;
  background-color: var(--color-gray-900); /* prevents gap flash on HiDPI during slide transitions */
}


.carousel-hero .carousel-item {
  position: relative;
  backface-visibility: visible;
  -webkit-backface-visibility: visible;
}

/* Background image — full width, natural height (no cropping) */
.carousel-hero .carousel-item img,
.carousel-hero .carousel-item .carousel-bg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 540px;
}

/* Image Placeholder (missing media) — needs explicit height since no img */
.carousel-image-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: clamp(280px, 56vw, 600px);
  background: linear-gradient(135deg, var(--color-gray-700) 0%, var(--color-gray-800) 100%);
  color: var(--color-gray-400);
  gap: var(--space-4);
}

.carousel-image-placeholder i {
  font-size: 4rem;
}

.carousel-image-placeholder p {
  font-size: var(--text-lg);
  margin: 0;
}

/* ── Gradient overlay ────────────────────────────────────────── */
.carousel-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.75) 0%,
    rgba(0, 0, 0, 0.35) 50%,
    rgba(0, 0, 0, 0.10) 100%
  );
  z-index: 1;
}

/* ── Caption container ───────────────────────────────────────── */
.carousel-caption-hero {
  position: absolute;
  inset: 0;
  z-index: 2;
  padding-inline: var(--space-6);
  text-align: start; /* RTL-aware */
}

@media (min-width: 768px) {
  .carousel-caption-hero {
    padding-inline: var(--space-12);
  }
}

.caption-inner {
  max-width: 600px;
}

[dir="rtl"] .caption-inner {
  margin-inline-start: auto;
}

/* ── Eyebrow label ───────────────────────────────────────────── */
.caption-eyebrow {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease 0.1s, transform 0.5s ease 0.1s;
}

[dir="ltr"] .caption-eyebrow {
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Hide eyebrow when empty */
.caption-eyebrow:empty {
  display: none;
}

/* ── Title ───────────────────────────────────────────────────── */
.caption-title {
  font-size: clamp(1.5rem, 3.5vw, 2.75rem);
  font-weight: var(--weight-extrabold);
  color: #fff;
  line-height: var(--leading-tight);
  margin-bottom: var(--space-4);
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease 0.2s, transform 0.6s ease 0.2s;
}

/* ── Subtitle ────────────────────────────────────────────────── */
.caption-subtitle {
  font-size: clamp(.875rem, 1.5vw, 1.1rem);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-6);
  max-width: 480px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease 0.35s, transform 0.6s ease 0.35s;
}

/* ── CTA Button ──────────────────────────────────────────────── */
.btn-hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-accent);
  color: #fff;
  font-weight: var(--weight-semibold);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  border: none;
  text-decoration: none;
  font-size: var(--text-base);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease 0.5s, transform 0.5s ease 0.5s,
              box-shadow var(--transition-fast), background var(--transition-fast);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.btn-hero-cta:hover {
  background: var(--color-accent-hover);
  color: #fff;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  transform: translateY(-2px);
}

/* ── Animate in on active slide ──────────────────────────────── */
.carousel-item.active .caption-eyebrow,
.carousel-item.active .caption-title,
.carousel-item.active .caption-subtitle,
.carousel-item.active .btn-hero-cta {
  opacity: 1;
  transform: translateY(0);
}

/* ── Progress Bar Indicators ─────────────────────────────────── */
.carousel-progress-indicators {
  position: absolute;
  bottom: var(--space-6);
  inset-inline-start: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
  margin: 0;
}

[dir="rtl"] .carousel-progress-indicators {
  transform: translateX(50%);
}

.carousel-progress-indicators button {
  position: relative;
  width: 40px;
  height: 4px;
  background: rgba(255, 255, 255, 0.35);
  border: none;
  border-radius: var(--radius-full);
  padding: 0;
  cursor: pointer;
  overflow: hidden;
  transition: width var(--transition-fast);
}

.carousel-progress-indicators button.active {
  width: 64px;
}

.carousel-progress-indicators button .progress-fill {
  position: absolute;
  inset-block: 0;
  inset-inline-start: 0;
  width: 100%;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  transform: scaleX(0);
  transform-origin: left center;
}

[dir="rtl"] .carousel-progress-indicators button .progress-fill {
  transform-origin: right center;
}

.carousel-progress-indicators button.active .progress-fill {
  transform: scaleX(1);
  transition: transform 8s linear; /* matches data-bs-interval — GPU-accelerated via scaleX */
}

/* Accessibility focus rings */
.carousel-progress-indicators button:focus-visible {
  outline: 2px solid var(--color-white);
  outline-offset: 2px;
}


/* ── Mobile ──────────────────────────────────────────────────── */
@media (max-width: 767.98px) {
  .carousel-hero .carousel-item img,
  .carousel-hero .carousel-item .carousel-bg {
    max-height: 360px;
  }


}

/* ── Reduced motion ──────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .caption-eyebrow,
  .caption-title,
  .caption-subtitle,
  .btn-hero-cta {
    transition: none;
    opacity: 1;
    transform: none;
  }

  .carousel-progress-indicators button .progress-fill {
    transition: none;
  }

}