/* ═══════════════════════════════════════════════════════════════
   GenVue V3 — Homepage CSS
═══════════════════════════════════════════════════════════════ */

/* ── Hero ─────────────────────────────────────────────────── */
.home-hero {
  position: relative;
  margin-top: -70px;
  height: 100vh;
  min-height: 680px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.home-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 40%;
  background-repeat: no-repeat;
  transform: scale(1.05);
  animation: heroZoom 12s ease-out forwards;
}
@keyframes heroZoom {
  from { transform: scale(1.05); }
  to   { transform: scale(1.0); }
}
.home-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(15,19,25,0.78) 0%,
    rgba(15,19,25,0.5) 50%,
    rgba(15,19,25,0.15) 100%
  );
}
.home-hero-overlay::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 200px;
  background: linear-gradient(to top, #ffffff 0%, rgba(255,255,255,0.5) 40%, transparent 100%);
}
.home-hero-content {
  position: relative;
  z-index: 2;
  padding: 0 var(--gv-pad);
  max-width: 780px;
}
.home-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--ff-sub);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gv-teal);
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(12px);
  animation: fadeUp 0.8s 0.3s var(--ease) forwards;
}
.home-hero-eyebrow::before {
  content: '';
  width: 32px; height: 1.5px;
  background: var(--gv-teal);
}
.home-hero-title {
  font-family: var(--ff-display);
  font-size: clamp(3rem, 7vw, 7rem);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.025em;
  color: #ffffff;
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(24px);
  animation: fadeUp 0.9s 0.5s var(--ease) forwards;
}
.home-hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, #1db68b, #00a8cc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.home-hero-sub {
  font-family: var(--ff-sub);
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  font-weight: 400;
  color: rgba(255,255,255,0.7);
  max-width: 520px;
  line-height: 1.75;
  margin-bottom: 2.5rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.9s 0.7s var(--ease) forwards;
}
.home-hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.9s 0.9s var(--ease) forwards;
}
.home-hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  animation: fadeIn 1s 1.4s forwards;
}
.home-hero-scroll span {
  font-family: var(--ff-sub);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}
.home-hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
  animation: scrollLine 1.5s 1.5s ease-in-out infinite;
}
@keyframes scrollLine {
  0%, 100% { transform: scaleY(1); opacity: 0.5; }
  50% { transform: scaleY(0.6); opacity: 1; }
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  to { opacity: 1; }
}

/* ── Products Showcase ─────────────────────────────────────── */
.home-products {
  position: relative;
}
.home-products-sticky-wrap {
  height: 500vh;
  position: relative;
}
.home-products-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
}

/* Background panels */
.hp-bg-panel {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 0.8s var(--ease);
  transform: scale(1.02);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.hp-bg-panel.active {
  opacity: 1;
  transform: scale(1);
}
.hp-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(15,19,25,0.88) 0%,
    rgba(15,19,25,0.6) 45%,
    rgba(15,19,25,0.2) 100%
  );
  z-index: 1;
}

/* Layout */
.hp-layout {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 0 var(--gv-pad);
  gap: 4rem;
}

/* Left: Product content */
.hp-content-area { position: relative; }
.hp-product {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%) translateX(-20px);
  opacity: 0;
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
  pointer-events: none;
}
.hp-product.active {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
  pointer-events: auto;
}
.hp-product-index {
  font-family: var(--ff-display);
  font-size: 8rem;
  font-weight: 700;
  line-height: 1;
  color: rgba(255,255,255,0.05);
  position: absolute;
  top: -2rem;
  left: -1rem;
  letter-spacing: -0.04em;
  user-select: none;
}
.hp-product-tag {
  font-family: var(--ff-sub);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gv-teal);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.hp-product-tag::before { content: ''; width: 24px; height: 1.5px; background: var(--gv-teal); }
.hp-product-name {
  font-family: var(--ff-display);
  font-size: clamp(2.5rem, 4vw, 4.5rem);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.025em;
  color: #ffffff;
  margin-bottom: 1.25rem;
}
.hp-product-desc {
  font-family: var(--ff-sub);
  font-size: 1.05rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.75;
  max-width: 440px;
  margin-bottom: 2rem;
}
.hp-product-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--ff-sub);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gv-teal);
  transition: gap 0.2s;
}
.hp-product-link:hover { gap: 0.85rem; }
.hp-product-link::after { content: '→'; }

/* Right: Product nav */
.hp-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-self: center;
}
.hp-nav-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem 1.5rem;
  border-radius: 12px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.3s var(--ease);
  background: rgba(255,255,255,0.03);
}
.hp-nav-item.active {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.12);
}
.hp-nav-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  opacity: 0.4;
  transition: opacity 0.3s, transform 0.3s;
}
.hp-nav-item.active .hp-nav-dot { opacity: 1; transform: scale(1.3); }
.hp-nav-item-name {
  font-family: var(--ff-sub);
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(255,255,255,0.45);
  transition: color 0.3s;
}
.hp-nav-item.active .hp-nav-item-name { color: rgba(255,255,255,0.9); }
.hp-nav-item-tag {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.25);
  margin-left: auto;
  font-family: var(--ff-sub);
  font-weight: 500;
  transition: color 0.3s;
}
.hp-nav-item.active .hp-nav-item-tag { color: rgba(255,255,255,0.5); }

/* Progress bar */
.hp-progress {
  position: absolute;
  bottom: 2rem;
  left: var(--gv-pad);
  right: var(--gv-pad);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.hp-progress-bar {
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,0.12);
  border-radius: 1px;
  overflow: hidden;
}
.hp-progress-fill {
  height: 100%;
  background: var(--gv-teal);
  border-radius: 1px;
  width: 20%;
  transition: width 0.1s linear;
}
.hp-progress-count {
  font-family: var(--ff-display);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.1em;
  white-space: nowrap;
}

/* ── Stats ─────────────────────────────────────────────────── */
.home-stats {
  padding: 5rem var(--gv-pad);
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.home-stats-grid {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.home-stat {
  background: var(--bg);
  padding: 2.5rem 2rem;
  text-align: center;
  transition: background 0.2s;
}
.home-stat:hover { background: var(--bg-2); }
.home-stat-number {
  font-family: var(--ff-display);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  background: linear-gradient(135deg,#1db68b,#00a8cc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.4rem;
}
.home-stat-label {
  font-family: var(--ff-sub);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--tx-light);
}

/* ── About Teaser ───────────────────────────────────────────── */
.home-about {
  padding: 7rem var(--gv-pad);
  background: var(--bg);
}
.home-about-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}
.home-about-media {
  position: relative;
  aspect-ratio: 4/5;
  border-radius: 24px;
  overflow: hidden;
}
.home-about-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 8s var(--ease);
}
.home-about-media:hover img { transform: scale(1.04); }
.home-about-badge {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  border-radius: 16px;
  padding: 1.25rem 1.5rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  text-align: center;
}
.home-about-badge-num {
  font-family: var(--ff-display);
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg,#1db68b,#00a8cc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.home-about-badge-text {
  font-family: var(--ff-sub);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--tx-light);
  margin-top: 0.25rem;
}
.home-about-text { padding: 2rem 0; }
.home-about-text h2 { margin: 1.5rem 0 1.75rem; }
.home-about-text p {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--tx-body);
  margin-bottom: 1.25rem;
}

/* ── Projects Reel ─────────────────────────────────────────── */
.home-projects {
  padding: 6rem 0;
  background: var(--bg-2);
  overflow: hidden;
}
.home-projects-header {
  padding: 0 var(--gv-pad);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2.5rem;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 2.5rem;
}
.home-projects-reel {
  display: flex;
  gap: 1.5rem;
  padding: 0 var(--gv-pad);
  overflow-x: auto;
  scrollbar-width: none;
  cursor: grab;
  -webkit-overflow-scrolling: touch;
}
.home-projects-reel::-webkit-scrollbar { display: none; }
.home-projects-reel.dragging { cursor: grabbing; user-select: none; }
.home-project-card {
  flex-shrink: 0;
  width: clamp(280px, 35vw, 440px);
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  aspect-ratio: 3/4;
  background: var(--bg-3);
}
.home-project-card img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.home-project-card:hover img { transform: scale(1.05); }
.home-project-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15,19,25,0.8) 0%, transparent 55%);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.home-project-card-tag {
  font-family: var(--ff-sub);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gv-teal);
  margin-bottom: 0.5rem;
}
.home-project-card-name {
  font-family: var(--ff-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.01em;
}
.home-project-card-loc {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
  margin-top: 0.25rem;
  font-family: var(--ff-sub);
}

/* ── Instagram ─────────────────────────────────────────────── */
.home-instagram {
  padding: 5rem var(--gv-pad);
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.home-instagram-inner { max-width: 1280px; margin: 0 auto; }
.home-instagram-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.home-instagram-handle {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--ff-sub);
  font-size: 1rem;
  font-weight: 700;
  color: var(--tx);
  text-decoration: none;
  transition: color 0.2s;
}
.home-instagram-handle:hover { color: var(--gv-teal); }
.home-instagram-handle svg { color: #E1306C; }
.home-instagram-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.75rem;
}
@media (max-width: 900px) {
  .home-instagram-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 480px) {
  .home-instagram-grid { grid-template-columns: repeat(2, 1fr); }
}
.home-instagram-post {
  aspect-ratio: 1;
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-2);
  position: relative;
}
.home-instagram-post img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}
.home-instagram-post:hover img { transform: scale(1.08); }
.home-instagram-post-overlay {
  position: absolute;
  inset: 0;
  background: rgba(29,182,139,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s;
}
.home-instagram-post:hover .home-instagram-post-overlay { opacity: 1; }
.home-instagram-post-overlay svg { color: white; width: 28px; height: 28px; }

/* ── CTA / Contact ─────────────────────────────────────────── */
.home-cta {
  padding: 7rem var(--gv-pad);
  background: var(--bg-dark);
  position: relative;
  overflow: hidden;
}
.home-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 60% at 70% 50%, rgba(29,182,139,0.08) 0%, transparent 65%);
}
.home-cta-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  position: relative;
  z-index: 1;
}
.home-cta-copy h2 { margin: 1.5rem 0; color: #ffffff; }
.home-cta-copy p { font-size: 1rem; color: rgba(255,255,255,0.55); line-height: 1.8; margin-bottom: 2rem; }

/* Contact Form */
.home-cta-form { display: flex; flex-direction: column; gap: 1rem; }
.cta-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.cta-form-group input,
.cta-form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  color: #ffffff;
  font-family: var(--ff-body);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
  box-sizing: border-box;
}
.cta-form-group input::placeholder,
.cta-form-group textarea::placeholder { color: rgba(255,255,255,0.25); }
.cta-form-group input:focus,
.cta-form-group textarea:focus {
  border-color: var(--gv-teal);
  background: rgba(29,182,139,0.05);
}
.cta-form-group textarea { resize: vertical; min-height: 100px; }
.cta-form-submit {
  background: var(--gv-teal);
  color: var(--bg-dark);
  border: none;
  border-radius: 100px;
  padding: 0.9rem 2rem;
  font-family: var(--ff-sub);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
  letter-spacing: 0.02em;
  align-self: flex-start;
}
.cta-form-submit:hover { background: #18d4a2; transform: translateY(-2px); }
.cta-form-msg {
  font-size: 0.85rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  display: none;
}
.cta-form-msg.success { display: block; background: rgba(29,182,139,0.1); border: 1px solid rgba(29,182,139,0.3); color: var(--gv-teal); }
.cta-form-msg.error   { display: block; background: rgba(243,124,71,0.1);  border: 1px solid rgba(243,124,71,0.3);  color: var(--gv-orange); }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hp-layout { grid-template-columns: 1fr; padding-top: 5rem; align-items: flex-end; padding-bottom: 8rem; }
  .hp-nav { flex-direction: row; overflow-x: auto; }
  .hp-nav-item { min-width: 120px; }
  .hp-nav-item-tag { display: none; }
  .home-about-inner { grid-template-columns: 1fr; gap: 3rem; }
  .home-about-media { max-width: 480px; }
  .home-cta-inner { grid-template-columns: 1fr; gap: 3rem; }
  .home-stats-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 768px) {
  .home-hero-overlay::after { height: 120px; }
  .home-hero-ctas { flex-direction: column; align-items: flex-start; }
  .home-projects-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .home-instagram-header { flex-direction: column; align-items: flex-start; }
  .cta-form-row { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .home-stats-grid { grid-template-columns: repeat(2,1fr); }
  .hp-nav { gap: 0.5rem; }
  .hp-nav-item { padding: 0.75rem 1rem; }
  .hp-nav-item-name { font-size: 0.78rem; }
}
/* ═══════════════════════════════════════════════════════════════
   GenVue V4 — Homepage additions (appended to homepage.css)
   Scroll-driven building reveal + 3D interactive
═══════════════════════════════════════════════════════════════ */

/* ══ Scroll-Driven Building Reveal ══════════════════════════ */
.home-reveal { position: relative; background: #0e1420; }
.home-reveal-wrap { height: 600vh; position: relative; }
.home-reveal-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 0 var(--gv-pad);
  gap: 4rem;
  overflow: hidden;
}

/* Building column */
.hrv-building-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}
.hrv-building {
  width: 280px;
  height: 480px;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.4s ease;
  cursor: pointer;
}
/* 3D tilt on mouse move — applied via JS */
.hrv-tilt-hint {
  font-family: var(--ff-sub);
  font-size: 0.7rem;
  color: rgba(255,255,255,0.2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 1.5rem;
  text-align: center;
  animation: hintPulse 2s ease-in-out infinite;
}
@keyframes hintPulse { 0%,100% { opacity: 0.3; } 50% { opacity: 0.8; } }

/* Building zones — stacked vertically */
.hrv-zone {
  position: relative;
  width: 100%;
  overflow: hidden;
}
.hrv-zone[data-zone="motion"]     { flex: 1.4; }
.hrv-zone[data-zone="powerskin"]  { flex: 1.2; }
.hrv-zone[data-zone="aether"]     { flex: 1.3; }
.hrv-zone[data-zone="shade"]      { flex: 0.8; }

.hrv-building {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 0 12px;
  box-shadow:
    0 0 0 2px rgba(255,255,255,0.06),
    0 40px 80px rgba(0,0,0,0.7),
    20px 20px 60px rgba(0,0,0,0.4);
  border-radius: 4px;
  background: #0a0f1e;
}

/* Zone panels grid */
.hrv-zone-panels {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2px;
  padding: 2px 0;
  position: relative;
  z-index: 2;
}
.hrv-panel {
  aspect-ratio: 0.65;
  border-radius: 1px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  transition: background 0.8s, border-color 0.8s, box-shadow 0.8s;
  position: relative;
  overflow: hidden;
}
/* Panel shimmer */
.hrv-panel::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.0) 0%, rgba(255,255,255,0.05) 50%, rgba(255,255,255,0.0) 100%);
  transform: translateX(-100%);
  transition: transform 0.0s;
}

/* Zone glows — hidden by default, activated by JS */
.hrv-zone-glow {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s;
  pointer-events: none;
  z-index: 1;
}
.hrv-glow-motion    { background: radial-gradient(ellipse 100% 100% at 50% 50%, rgba(0,168,204,0.25), transparent 70%); }
.hrv-glow-powerskin { background: radial-gradient(ellipse 100% 100% at 50% 50%, rgba(253,206,9,0.2), transparent 70%); }
.hrv-glow-aether    { background: radial-gradient(ellipse 100% 100% at 50% 50%, rgba(29,182,139,0.2), transparent 70%); }
.hrv-glow-shade     { background: radial-gradient(ellipse 100% 100% at 50% 50%, rgba(138,154,181,0.2), transparent 70%); }

/* Active zone states */
.hrv-zone.active-motion    .hrv-panel { background: rgba(0,168,204,0.15); border-color: rgba(0,168,204,0.3); }
.hrv-zone.active-motion    .hrv-zone-glow { opacity: 1; }
.hrv-zone.active-powerskin .hrv-panel { background: rgba(253,206,9,0.12); border-color: rgba(253,206,9,0.25); }
.hrv-zone.active-powerskin .hrv-zone-glow { opacity: 1; }
.hrv-zone.active-aether    .hrv-panel { background: rgba(29,182,139,0.12); border-color: rgba(29,182,139,0.25); }
.hrv-zone.active-aether    .hrv-zone-glow { opacity: 1; }
.hrv-zone.active-shade     .hrv-panel { background: rgba(138,154,181,0.25); border-color: rgba(138,154,181,0.3); }
.hrv-zone.active-shade     .hrv-zone-glow { opacity: 1; }
/* Shade: tinted effect */
.hrv-zone.active-shade     .hrv-panel::after {
  background: rgba(40,50,80,0.4);
  transform: translateX(0);
  transition: none;
}

/* LED animation for Motion panels */
@keyframes ledFlicker {
  0%,100% { opacity: 1; }
  25%      { opacity: 0.7; }
  75%      { opacity: 0.9; }
}
.hrv-zone.active-motion .hrv-panel { animation: ledFlicker 2s ease-in-out infinite; }
.hrv-zone.active-motion .hrv-panel:nth-child(odd) { animation-delay: 0.3s; }
.hrv-zone.active-motion .hrv-panel:nth-child(3n)  { animation-delay: 0.6s; }

/* Solar particles for PowerSkin */
@keyframes solarRise {
  0%   { transform: translateY(0) scale(1); opacity: 0.7; }
  100% { transform: translateY(-60px) scale(0.3); opacity: 0; }
}
.hrv-solar-particle {
  position: absolute;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: #fdce09;
  pointer-events: none;
  animation: solarRise 1.5s ease-out infinite;
  z-index: 3;
}

/* Aether shimmer */
@keyframes aetherShimmer {
  0%,100% { opacity: 0.12; }
  50% { opacity: 0.3; }
}
.hrv-zone.active-aether .hrv-panel::after {
  background: linear-gradient(135deg, rgba(29,182,139,0.0) 0%, rgba(29,182,139,0.2) 50%, rgba(29,182,139,0.0) 100%);
  transform: translateX(0);
  animation: aetherShimmer 2.5s ease-in-out infinite;
  transition: none;
}

/* Building structural elements */
.hrv-structure {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
}
.hrv-col-left, .hrv-col-right {
  position: absolute;
  top: 0; bottom: 0;
  width: 10px;
  background: rgba(255,255,255,0.06);
}
.hrv-col-left  { left: 0; }
.hrv-col-right { right: 0; }
.hrv-rooftop {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 4px 4px 0 0;
  z-index: 4;
}
.hrv-shadow {
  position: absolute;
  bottom: -30px; left: 10%;
  width: 80%; height: 30px;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0,0,0,0.5), transparent);
  pointer-events: none;
}

/* Info panels */
.hrv-info-col { position: relative; min-height: 300px; }
.hrv-info-item {
  position: absolute;
  top: 50%;
  left: 0; right: 0;
  transform: translateY(calc(-50% + 20px));
  opacity: 0;
  transition: opacity 0.5s, transform 0.5s;
  pointer-events: none;
}
.hrv-info-item.active {
  opacity: 1;
  transform: translateY(-50%);
  pointer-events: auto;
}
.hrv-info-tag {
  font-family: var(--ff-sub);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gv-teal);
  margin-bottom: 1rem;
}
.hrv-info-title {
  font-family: var(--ff-display);
  font-size: clamp(2rem, 3.5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.025em;
  color: #ffffff;
  margin-bottom: 1.25rem;
}
.hrv-info-desc {
  font-family: var(--ff-sub);
  font-size: 1rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.75;
  max-width: 440px;
  margin-bottom: 2rem;
}
.hrv-info-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--ff-sub);
  font-size: 0.875rem;
  font-weight: 600;
  transition: gap 0.2s;
}
.hrv-info-link:hover { gap: 0.75rem; }
.hrv-progress-dots {
  display: flex;
  gap: 0.5rem;
  margin-top: 2.5rem;
}
.hrv-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  cursor: pointer;
  transition: transform 0.3s, background 0.3s;
}
.hrv-dot.active { transform: scale(1.4); }

/* ══ 3D Building Interactive ════════════════════════════════ */
.home-3d-section { background: var(--bg-2); }
.home-3d-section .gv-section-inner { position: relative; }
.h3d-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.h3d-canvas-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 540px;
  min-height: 400px;
}
.h3d-building-3d {
  position: relative;
  width: 260px;
  height: 420px;
  transform-style: preserve-3d;
  transition: transform 0.15s ease;
  cursor: crosshair;
}
.h3d-frame {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  padding: 0 8px;
  background: #1a2035;
  border-radius: 4px;
  overflow: hidden;
}
.h3d-panel {
  border-radius: 1px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.06);
  cursor: pointer;
  transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
  position: relative;
}
.h3d-panel:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.2);
}
/* Product zone colours */
.h3d-panel[data-zone="motion"].highlighted {
  background: rgba(0,168,204,0.3);
  border-color: rgba(0,168,204,0.6);
  box-shadow: 0 0 12px rgba(0,168,204,0.4);
}
.h3d-panel[data-zone="powerskin"].highlighted {
  background: rgba(253,206,9,0.25);
  border-color: rgba(253,206,9,0.5);
  box-shadow: 0 0 12px rgba(253,206,9,0.3);
}
.h3d-panel[data-zone="aether"].highlighted {
  background: rgba(29,182,139,0.25);
  border-color: rgba(29,182,139,0.5);
  box-shadow: 0 0 12px rgba(29,182,139,0.3);
}
.h3d-panel[data-zone="shade"].highlighted {
  background: rgba(138,154,181,0.35);
  border-color: rgba(138,154,181,0.5);
  box-shadow: 0 0 12px rgba(138,154,181,0.3);
}
.h3d-panel[data-zone="powermotion"].highlighted {
  background: rgba(243,124,71,0.3);
  border-color: rgba(243,124,71,0.5);
  box-shadow: 0 0 12px rgba(243,124,71,0.3);
}
/* Building 3D sides */
.h3d-side-left, .h3d-side-right {
  position: absolute;
  top: 4px; bottom: 4px;
  width: 24px;
  background: #0d1220;
  transform-origin: left center;
}
.h3d-side-left {
  left: -22px;
  transform: rotateY(90deg) translateZ(0px);
  border-right: 1px solid rgba(255,255,255,0.05);
}
.h3d-side-right {
  right: -22px;
  transform: rotateY(-90deg);
  border-left: 1px solid rgba(255,255,255,0.05);
}
.h3d-top {
  position: absolute;
  top: -16px; left: -10px; right: -10px;
  height: 18px;
  background: #1a2540;
  border-radius: 3px 3px 0 0;
  transform: rotateX(-90deg);
  transform-origin: bottom center;
}
.h3d-shadow {
  position: absolute;
  bottom: -24px; left: -20px; right: -20px;
  height: 24px;
  background: radial-gradient(ellipse 90% 40% at 50% 0%, rgba(0,0,0,0.35), transparent);
}
/* Info card */
.h3d-product-info { margin-top: 2rem; min-height: 80px; }
.h3d-info-card {
  padding: 1.25rem 1.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.3s;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}
.h3d-info-card-tag {
  font-family: var(--ff-sub);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}
.h3d-info-card-name {
  font-family: var(--ff-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--tx);
  margin-bottom: 0.3rem;
  letter-spacing: -0.02em;
}
.h3d-info-card-desc {
  font-size: 0.82rem;
  color: var(--tx-light);
  line-height: 1.6;
}
.h3d-info-card-link {
  display: inline-block;
  margin-top: 0.75rem;
  font-family: var(--ff-sub);
  font-size: 0.8rem;
  font-weight: 600;
  transition: gap 0.2s;
}

/* ══ Responsive ════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .home-reveal-sticky { grid-template-columns: 1fr; }
  .hrv-building-col { display: none; }
  .hrv-info-col { min-height: 250px; }
  .hrv-info-item { position: static; transform: none; opacity: 0; transition: opacity 0.5s; }
  .hrv-info-item.active { opacity: 1; transform: none; }
  .h3d-layout { grid-template-columns: 1fr; }
  .h3d-canvas-wrap { min-height: 300px; }
  .h3d-building-3d { width: 200px; height: 320px; }
}
@media (max-width: 768px) {
  .home-reveal-wrap { height: 400vh; }
  .home-reveal-sticky { padding: 0 1.5rem; }
}