/* =========================================================
   HERO SLIDER — premium 5-slide carousel with shared background,
   staggered text reveal, and a replayed water-splash burst.
   Relies on the CSS variables defined in style.css (:root)
   ========================================================= */

.hs-hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  overflow: hidden;
  background: var(--dark-navy);
  isolation: isolate;
  outline: none;
}

/* ---------- Shared background (Ken-Burns slow zoom) ---------- */
.hs-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1);
  transition: opacity 1.4s ease;
  animation: hs-bg-zoom 24s ease-in-out infinite alternate;
}

.hs-hero.hs-mounted .hs-bg {
  opacity: 1;
}

.hs-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, rgba(5, 17, 40, 0.93) 0%, rgba(5, 17, 40, 0.74) 30%, rgba(5, 17, 40, 0.30) 56%, rgba(5, 17, 40, 0.5) 100%),
    linear-gradient(0deg, rgba(5, 17, 40, 0.6) 0%, rgba(5, 17, 40, 0) 42%);
}

/* ---------- Layout shell ---------- */
.hs-inner {
  position: relative;
  z-index: 2;
  max-width: 1400px;
  margin: 0 auto;
  height: 100vh;
  min-height: 660px;
  padding: calc(var(--navbar-height) + 46px) 24px 110px;
  display: flex;
  align-items: center;
}

.hs-slides {
  position: relative;
  flex: 1;
  height: 100%;
}

.hs-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.7s ease;
}

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

/* ---------- Left: text column ---------- */
.hs-slide-text {
  max-width: 540px;
  flex-shrink: 0;
}

.hs-slide-text > * {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.hs-slide.is-active .hs-tag       { opacity: 1; transform: translateY(0); transition-delay: 0.12s; }
.hs-slide.is-active .hs-heading   { opacity: 1; transform: translateY(0); transition-delay: 0.24s; }
.hs-slide.is-active .hs-desc      { opacity: 1; transform: translateY(0); transition-delay: 0.38s; }
.hs-slide.is-active .hs-cta-row   { opacity: 1; transform: translateY(0); transition-delay: 0.52s; }

.hs-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px 9px 14px;
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #bfe0ff;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.hs-heading {
  margin-top: 22px;
  font-size: 54px;
  font-weight: 800;
  line-height: 1.08;
  color: var(--white);
  letter-spacing: -0.5px;
}

.hs-heading-line {
  display: block;
}

.hs-heading-accent {
  background: linear-gradient(90deg, #8fd3ff, #5bb8ff 55%, #dff2ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hs-desc {
  margin-top: 20px;
  font-size: 16.5px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.82);
  max-width: 460px;
}

.hs-cta-row {
  margin-top: 34px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hs-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 15px 28px;
  border-radius: 32px;
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  transition: background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.hs-btn-primary {
  background: linear-gradient(135deg, #2f7dff, var(--primary-blue));
  color: var(--white);
  box-shadow: 0 14px 30px rgba(13, 94, 244, 0.4);
}

.hs-btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(13, 94, 244, 0.55);
}

.hs-btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.hs-btn-ghost:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.6);
  transform: translateY(-3px);
}

/* ---------- Right: product visual + water splash ---------- */
.hs-slide-visual {
  position: relative;
  flex: 0 0 46%;
  max-width: 560px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hs-product-img {
  position: relative;
  z-index: 2;
  max-width: 92%;
  max-height: 76%;
  object-fit: contain;
  filter: drop-shadow(0 30px 45px rgba(3, 15, 35, 0.55));
  opacity: 0;
  transform: scale(0.86) translateY(26px);
  transition: opacity 0.8s ease, transform 1s cubic-bezier(0.19, 1, 0.22, 1);
}

.hs-slide.is-active .hs-product-img {
  opacity: 1;
  transform: scale(1) translateY(0);
  transition-delay: 0.16s;
}

.hs-splash {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.hs-glow {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(1);
  background: radial-gradient(circle, rgba(91, 184, 255, 0.55), rgba(13, 94, 244, 0) 70%);
  filter: blur(30px);
  animation: hs-glow-pulse 4.5s ease-in-out infinite;
}

.hs-ring {
  position: absolute;
  left: 50%;
  top: 52%;
  border-radius: 50%;
  border: 2px solid rgba(191, 224, 255, 0.55);
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.4);
}

.hs-ring-a { width: 230px; height: 230px; }
.hs-ring-b { width: 330px; height: 330px; }

.hs-splash.is-bursting .hs-ring-a { animation: hs-ring-burst 1s ease-out; }
.hs-splash.is-bursting .hs-ring-b { animation: hs-ring-burst 1.15s ease-out 0.1s; }

.hs-wave {
  position: absolute;
  left: 4%;
  right: 4%;
  bottom: 10%;
  width: 92%;
  height: auto;
  opacity: 0.85;
  animation: hs-wave-bob 5s ease-in-out infinite;
}

.hs-droplet {
  position: absolute;
  left: calc(50% + (var(--d) - 3) * 30px);
  bottom: 20%;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #ffffff, #bfe4ff 55%, rgba(13, 94, 244, 0.25) 100%);
  opacity: 0;
}

.hs-splash.is-bursting .hs-droplet {
  animation: hs-droplet-pop 1.15s ease-out forwards;
  animation-delay: calc(var(--d) * 80ms);
}

/* ---------- Controls: arrows + dots ---------- */
.hs-controls {
  position: absolute;
  left: 50%;
  bottom: 36px;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 22px;
}

.hs-arrow {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}

.hs-arrow:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.55);
  transform: translateY(-2px);
}

.hs-dots {
  display: flex;
  align-items: center;
  gap: 9px;
}

.hs-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: width 0.35s ease, background 0.35s ease;
}

.hs-dot.is-active {
  width: 30px;
  border-radius: 6px;
  background: linear-gradient(90deg, #5bb8ff, var(--primary-blue));
}

/* ---------- Keyframes ---------- */
@keyframes hs-bg-zoom {
  from { transform: scale(1); }
  to   { transform: scale(1.08); }
}

@keyframes hs-glow-pulse {
  0%, 100% { opacity: 0.35; transform: translate(-50%, -50%) scale(1); }
  50%      { opacity: 0.6;  transform: translate(-50%, -50%) scale(1.14); }
}

@keyframes hs-wave-bob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-9px); }
}

@keyframes hs-ring-burst {
  0%   { opacity: 0.7; transform: translate(-50%, -50%) scale(0.4); }
  70%  { opacity: 0.22; }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1.55); }
}

@keyframes hs-droplet-pop {
  0%   { opacity: 0; transform: translate(-50%, 40px) scale(0.3); }
  28%  { opacity: 1; }
  75%  { opacity: 0.9; }
  100% { opacity: 0; transform: translate(-50%, -95px) scale(0.85); }
}

/* ---------- Responsive ---------- */
@media (max-width: 1180px) {
  .hs-heading { font-size: 44px; }
  .hs-slide-visual { flex: 0 0 42%; }
}

@media (max-width: 900px) {
  .hs-inner {
    padding: calc(var(--navbar-height) + 30px) 20px 130px;
    height: auto;
    min-height: 100vh;
  }
  .hs-slide {
    flex-direction: column;
    justify-content: center;
    text-align: center;
    gap: 18px;
  }
  .hs-slide-text {
    max-width: 100%;
  }
  .hs-desc { margin-left: auto; margin-right: auto; }
  .hs-cta-row { justify-content: center; }
  .hs-slide-visual {
    flex: 0 0 auto;
    width: 100%;
    max-width: 360px;
    height: 280px;
  }
  .hs-heading { font-size: 36px; }
}

@media (max-width: 480px) {
  .hs-inner { padding: calc(var(--navbar-height) + 20px) 16px 90px; }
  .hs-heading { font-size: 29px; }
  .hs-desc { font-size: 15px; }
  .hs-btn { padding: 13px 22px; font-size: 14px; }
  .hs-slide-visual { height: 220px; }
  .hs-controls { bottom: 22px; gap: 16px; }
  .hs-arrow { width: 40px; height: 40px; }
}

/* Very short viewports (small phones in DevTools presets, some landscape
   phones) — the fixed padding above leaves almost no room for content when
   height is this constrained, so trim it further. Scoped to mobile widths
   only via max-width so desktop/tablet browser windows are never affected.

   .hs-inner uses height:auto at the 900px breakpoint above; percentage
   heights (.hs-slides { height: 100% }) don't resolve against an `auto`
   ancestor per spec, so .hs-slides silently collapsed to 0px here and the
   text only ever appeared because of overflow:visible painting outside
   that collapsed box — centering it then overflowed equally in both
   directions, pushing the heading up behind the navbar. Giving .hs-inner
   an explicit height fixes the percentage chain properly. */
@media (max-height: 700px) and (max-width: 900px) {
  .hs-inner {
    height: 100vh;
    padding-top: 100px;
    padding-bottom: 20px;
  }
  .hs-slides {
    max-height: 100%;
  }
  .hs-slide {
    overflow-y: auto;
    gap: 8px;
    padding-bottom: 54px; /* reserve room for the absolutely-positioned dot/arrow controls */
  }
  .hs-slide-visual {
    display: none;
  }
  .hs-tag {
    padding: 6px 12px 6px 10px;
    font-size: 10.5px;
  }
  .hs-heading {
    margin-top: 10px;
    font-size: 22px;
  }
  .hs-desc {
    margin-top: 8px;
    font-size: 13px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
  }
  .hs-cta-row {
    margin-top: 12px;
  }
  .hs-controls {
    bottom: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hs-bg { animation: none; }
  .hs-glow { animation: none; }
  .hs-wave { animation: none; }
  .hs-ring, .hs-droplet { animation: none !important; }
  .hs-slide, .hs-slide-text > *, .hs-product-img { transition-duration: 0.01s; }
}