.hero-slider {
  position: relative;
  width: 100%;
  height: min(90vh, 720px);
  min-height: 420px;
  overflow: hidden;
  background: radial-gradient(circle at top left, #1f2937, #020617);
  color: #fff;
  isolation: isolate;
}

.hero-track {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 650ms ease;
}

.hero-slide.is-active {
  opacity: 1;
  pointer-events: auto;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  transition: transform 1000ms ease;
  filter: saturate(1.05) contrast(1.05);
}

.hero-slide.is-active .hero-bg img {
  transform: scale(1);
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(
      circle at 0% 0%,
      rgba(15, 23, 42, 0.85) 0%,
      rgba(15, 23, 42, 0.75) 35%,
      transparent 70%
    ),
    linear-gradient(
      120deg,
      rgba(15, 23, 42, 0.95) 0%,
      rgba(15, 23, 42, 0.6) 40%,
      rgba(15, 23, 42, 0.15) 100%
    );
  z-index: 2;
}

/* ===============================
   Content layout
   =============================== */

.hero-inner {
  position: relative;
  z-index: 3;
  height: 100%;
  display: flex;
  align-items: center;
}

.hero-content {
  max-width: 580px;
  color: #f9fafb;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px; /* 0.4rem */
  font-size: 12px; /* 0.78rem */
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: #e5e7eb;
  opacity: 0;
  transform: translateY(14px);
}

.hero-kicker-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--primary);
  box-shadow: 0 0 0 6px rgba(161, 20, 20, 0.35);
}

.hero-title {
  font-size: clamp(34px, 3.2vw + 18px, 50px); /* clamp(2.1rem, 3.2vw + 1.1rem, 3.1rem) */
  line-height: 1.05;
  margin: 12px 0 14px; /* 0.75rem 0 0.85rem */
  letter-spacing: -0.03em;
  opacity: 0;
  transform: translateY(18px);
  color: #fff;
  font-size: 45px;
}

.hero-title span {
  color: var(--primary);
}

.hero-subtitle {
  font-size: 16px; /* 0.98rem ≈ 15.7px */
  line-height: 1.7;
  max-width: 544px; /* 34rem */
  color: var(--text-sub);
  margin: 0 0 22px; /* 1.4rem */
  opacity: 0;
  transform: translateY(20px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px; /* 0.8rem */
  margin-bottom: 20px; /* 1.25rem */
  opacity: 0;
  transform: translateY(22px);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px; /* 0.6rem */
  font-size: 13px; /* 0.8rem */
  opacity: 0;
  transform: translateY(24px);
}

.hero-meta-pill {
  padding: 5px 11px; /* 0.3rem 0.7rem */
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.78);
  backdrop-filter: blur(18px);
  display: inline-flex;
  align-items: center;
  gap: 6px; /* 0.35rem */
}

.hero-meta-pill span {
  font-size: 0.9em;
  color: #e5e7eb;
}

/* ===============================
   Buttons
   =============================== */

.hero-slider .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px; /* 0.4rem */
  min-width: 140px;
  padding: 11px 22px; /* 0.7rem 1.4rem */
  border-radius: 999px;
  font-size: 14px; /* 0.9rem */
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 200ms ease, color 200ms ease, border-color 200ms ease,
    transform 120ms ease, box-shadow 120ms ease;
  will-change: transform, box-shadow;
}

.hero-slider .btn-primary {
  background: var(--primary);
  color: #fef2f2;
  box-shadow: 0 14px 30px rgba(161, 20, 20, 0.55);
}

.hero-sliderc .btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.9);
}

.hero-slider .btn-ghost {
  background: transparent;
  color: #e5e7eb;
  border-color: rgba(148, 163, 184, 0.6);
  backdrop-filter: blur(12px);
}

.hero-slider .btn-ghost:hover {
  background: rgba(15, 23, 42, 0.9);
  border-color: rgba(248, 250, 252, 0.7);
  transform: translateY(-1px);
}

.hero-slider .btn .btn-icon {
  font-size: 16px; /* 1rem */
}

/* ===============================
   Slide content animations
   =============================== */

.hero-slide .hero-kicker,
.hero-slide .hero-title,
.hero-slide .hero-subtitle,
.hero-slide .hero-actions,
.hero-slide .hero-meta {
  transition: opacity 420ms ease, transform 420ms ease;
}

.hero-slide.is-active .hero-kicker {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 80ms;
}

.hero-slide.is-active .hero-title {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 160ms;
}

.hero-slide.is-active .hero-subtitle {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 260ms;
}

.hero-slide.is-active .hero-actions {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 360ms;
}

.hero-slide.is-active .hero-meta {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 460ms;
}

/* ===============================
   Navigation arrows
   =============================== */

.hero-nav {
  border-radius: 50%;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(248, 250, 252, 0.5);
  background: radial-gradient(
      circle at 30% 0%,
      rgba(248, 250, 252, 0.18),
      transparent 60%
    ),
    rgba(15, 23, 42, 0.68);
  backdrop-filter: blur(16px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 21px; /* 1.3rem */
  color: #f9fafb;
  cursor: pointer;
  z-index: 4;
  transition: background 160ms ease, transform 120ms ease,
    border-color 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
  opacity: 0.9;
}

.hero-nav-prev {
  left: 24px; /* 1.5rem */
}

.hero-nav-next {
  right: 24px; /* 1.5rem */
}

.hero-nav:hover {
  background: rgba(15, 23, 42, 0.95);
  border-color: rgba(248, 250, 252, 0.85);
  transform: translateY(-50%) translateY(-1px);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.9);
  opacity: 1;
}

.hero-nav:active {
  transform: translateY(-50%) translateY(0);
  box-shadow: none;
}

/* ===============================
   Dots / Pagination
   =============================== */

.hero-dots {
  position: absolute;
  bottom: 28px; /* 1.75rem */
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 9px; /* 0.55rem */
  z-index: 4;
}

.hero-dot {
  border: none;
  padding: 0;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: transparent;
  border: 1px solid rgba(248, 250, 252, 0.7);
  opacity: 0.8;
  cursor: pointer;
  transition: width 220ms ease, background 220ms ease, opacity 220ms ease,
    transform 120ms ease;
}

.hero-dot:hover {
  opacity: 1;
  transform: translateY(-1px);
}

.hero-dot.is-active {
  width: 24px;
  background: #f9fafb;
  opacity: 1;
}

/* ===============================
   Responsive
   =============================== */

@media (max-width: 992px) {
  .hero-slider {
    height: min(80vh, 640px);
  }
}

@media (max-width: 768px) {
  .hero-slider {
    height: min(82vh, 620px);
  }

  .hero-inner {
    justify-content: center;
    text-align: center;
    padding-inline: 19px; /* 1.2rem */
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-meta {
    justify-content: center;
  }

  .hero-nav {
    width: 34px;
    height: 34px;
    font-size: 18px; /* 1.1rem */
    top: auto;
    bottom: 74px; /* 4.6rem */
    transform: translateY(0);
  }

  .hero-nav-prev {
    left: 18px; /* 1.1rem */
  }

  .hero-nav-next {
    right: 18px; /* 1.1rem */
  }
}

@media (max-width: 480px) {
  .hero-slider {
    min-height: 520px;
  }

  .hero-title {
    font-size: 30px; /* 1.9rem */
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .hero-nav {
    display: none; /* Optional: hide arrows on very small screens */
  }
}