/* ==========================================================================
   STEGNCE LYF TEK — COMPONENT STYLES
   ========================================================================== */

/* ==========================================================================
   NAVIGATION
   ========================================================================== */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: all var(--trans-base);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.site-nav.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
  border-bottom-color: #cbd5e1;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.brand-logo-img {
  height: 46px;
  width: auto;
  object-fit: contain;
  transition: transform var(--trans-fast);
}

.nav-brand:hover .brand-logo-img {
  transform: scale(1.02);
}

.brand-text-block {
  display: none; /* Official logo already contains STEGNCE Hope Meets Engineering */
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.85rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #334155;
  transition: color var(--trans-fast);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link:hover, .nav-link.active {
  color: #0f172a;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2.5px;
  background-color: var(--brand-purple);
  transition: width var(--trans-base);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  position: relative;
  justify-content: center;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  color: var(--text-primary);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  position: absolute;
  transition: transform var(--trans-base), opacity var(--trans-base);
}

.nav-toggle span:nth-child(1) { transform: translateY(-6px); }
.nav-toggle span:nth-child(2) { transform: translateY(0); }
.nav-toggle span:nth-child(3) { transform: translateY(6px); }

.nav-toggle.open span:nth-child(1) { transform: translateY(0) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(0) rotate(-45deg); }

/* Mobile Menu Drawer */
.mobile-menu {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--nav-height));
  background: rgba(7, 12, 24, 0.98);
  backdrop-filter: blur(20px);
  padding: 2.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--trans-smooth), opacity var(--trans-smooth);
  z-index: 999;
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.mobile-nav-link {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-nav-link:hover {
  color: var(--accent-teal);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: calc(var(--nav-height) + 2rem);
  padding-bottom: 4rem;
  background: radial-gradient(circle at 75% 35%, rgba(124, 58, 237, 0.08) 0%, transparent 60%),
              radial-gradient(circle at 20% 80%, rgba(124, 58, 237, 0.06) 0%, transparent 50%),
              var(--bg-primary);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.95fr;
  align-items: center;
  gap: clamp(2.5rem, 5vw, 5rem);
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-teal);
  margin-bottom: 1.25rem;
}

.hero-eyebrow::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--accent-teal);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: var(--text-hero);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  color: #ffffff;
}

.hero-title .highlight {
  background: linear-gradient(135deg, #ffffff 40%, var(--accent-teal) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: var(--text-body-lg);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 2rem;
  max-width: 540px;
}

.hero-product-badge {
  display: inline-block;
  background: rgba(16, 26, 49, 0.85);
  border-left: 3px solid var(--accent-teal);
  border-top: 1px solid var(--border-subtle);
  border-right: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-xs);
  margin-bottom: 2.25rem;
  max-width: 520px;
}

.product-id-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.35rem;
}

.product-name-bold {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #ffffff;
}

.product-id-tag {
  font-size: 0.65rem;
  font-family: var(--font-heading);
  color: var(--accent-teal);
  font-weight: 600;
  letter-spacing: 0.1em;
  background: var(--accent-teal-subtle);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-xs);
}

.product-short-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
}

/* Hero Visual & Real Product Showcase */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-stage {
  position: relative;
  width: 100%;
  max-width: 580px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-halo {
  position: absolute;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, rgba(124, 58, 237, 0.12) 50%, transparent 70%);
  filter: blur(50px);
  pointer-events: none;
  z-index: 1;
}

.hero-product-image-wrap {
  position: relative;
  z-index: 2;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-tech);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7), 0 0 30px rgba(124, 58, 237, 0.15);
  overflow: hidden;
  background: #0b111e;
  transition: transform var(--trans-smooth), box-shadow var(--trans-smooth);
}

.hero-product-image-wrap:hover {
  transform: translateY(-4px);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 40px rgba(124, 58, 237, 0.25);
  border-color: var(--accent-teal);
}

.hero-product-img {
  width: 100%;
  height: auto;
  max-height: 480px;
  object-fit: cover;
  display: block;
}

/* Subtle Technical HUD Badges positioned around hero knee */
.hud-telemetry {
  position: absolute;
  z-index: 4;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  background: rgba(7, 12, 24, 0.92);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-tech);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-xs);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.6);
  pointer-events: none;
}

.hud-telemetry .telemetry-label {
  font-family: var(--font-heading);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent-teal);
  text-transform: uppercase;
}

.hud-telemetry .telemetry-val {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: #ffffff;
  font-weight: 600;
}

.hud-pos-1 { top: -15px; right: 20px; }
.hud-pos-2 { top: 45%; left: -25px; }
.hud-pos-3 { bottom: 15%; right: -25px; }
.hud-pos-4 { bottom: -15px; left: 20px; }
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent-teal);
  text-transform: uppercase;
}

.hud-telemetry .telemetry-val {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--text-primary);
  font-weight: 500;
}

.hud-pos-1 { top: 12%; right: -5%; }
.hud-pos-2 { top: 38%; left: -8%; }
.hud-pos-3 { bottom: 30%; right: -6%; }
.hud-pos-4 { bottom: 8%; left: -2%; }

/* ==========================================================================
   SECTION 01: THE PROBLEM
   ========================================================================== */
.problem-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: center;
}

.problem-statement-quote {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 2.8vw, 2.4rem);
  font-weight: 600;
  line-height: 1.3;
  color: #ffffff;
  margin-bottom: 1.5rem;
  position: relative;
}

.problem-statement-quote::before {
  content: '“';
  position: absolute;
  top: -0.6rem;
  left: -1.2rem;
  font-size: 4rem;
  color: var(--accent-teal);
  opacity: 0.3;
  line-height: 1;
  pointer-events: none;
}

.problem-narrative p {
  font-size: var(--text-body-lg);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.stats-card-group {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.stat-item-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 1.5rem 1.75rem;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--trans-fast), border-color var(--trans-fast);
}

.stat-item-box:hover {
  border-color: var(--accent-teal);
  transform: translateX(4px);
}

.stat-item-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--accent-teal);
}

.stat-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3vw, 2.75rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1;
}

.stat-label-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.stat-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   SECTION 02: THE SOLUTION (MEET STHIRĀ)
   ========================================================================== */
.solution-pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin-bottom: 3.5rem;
}

.pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2.25rem 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: all var(--trans-base);
}

.pillar-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-teal);
  box-shadow: var(--shadow-glow-teal);
}

.pillar-number {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent-teal);
  letter-spacing: 0.05em;
}

.pillar-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #ffffff;
  text-transform: uppercase;
}

.pillar-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.credentials-strip {
  background: rgba(12, 20, 39, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2.25rem;
}

.credentials-strip-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: #ffffff;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.credentials-strip-title::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--accent-teal);
  border-radius: 50%;
}

.credentials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem 2rem;
}

.credential-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.925rem;
  color: var(--text-primary);
}

.credential-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-teal-subtle);
  color: var(--accent-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.75rem;
  font-weight: bold;
}

/* ==========================================================================
   SECTION 03: PRODUCT SHOWCASE (TECHNICAL DARKROOM)
   ========================================================================== */
.showcase-stage-wrap {
  position: relative;
  background: radial-gradient(circle at 50% 50%, rgba(15, 29, 58, 0.9) 0%, #060a14 80%);
  border: 1px solid var(--border-tech);
  border-radius: var(--radius-md);
  padding: clamp(2rem, 4vw, 3.5rem) 1.5rem;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
}

.showcase-stage {
  max-width: 820px;
  margin: 0 auto;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.8);
  border: 1px solid var(--border-subtle);
}

.showcase-product-img {
  width: 100%;
  height: auto;
  max-height: min(580px, 72vh);
  object-fit: contain;
  display: block;
}

/* Interactive Hotspot Elements */
.hotspot-pin {
  position: absolute;
  width: 34px;
  height: 34px;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pin-core {
  width: 14px;
  height: 14px;
  background: var(--accent-teal);
  border-radius: 50%;
  border: 2px solid #ffffff;
  box-shadow: 0 0 14px var(--accent-teal);
  transition: transform var(--trans-fast), background-color var(--trans-fast);
}

.pin-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 2px solid var(--accent-teal);
  border-radius: 50%;
  animation: pulse-ring 2.2s infinite cubic-bezier(0.215, 0.61, 0.355, 1);
}

.hotspot-pin:hover .pin-core, .hotspot-pin.active .pin-core {
  transform: scale(1.35);
  background: #ffffff;
  box-shadow: 0 0 18px #ffffff;
}

/* Hotspot Callout Cards */
.hotspot-card {
  position: absolute;
  width: 270px;
  background: rgba(7, 12, 24, 0.96);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-tech);
  border-radius: var(--radius-xs);
  padding: 1.15rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--trans-base), transform var(--trans-base);
  z-index: 25;
}

.hotspot-card.visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.hotspot-card-title {
  font-family: var(--font-heading);
  font-size: 0.925rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent-teal);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}

.hotspot-card-desc {
  font-size: 0.825rem;
  color: #e2e8f0;
  line-height: 1.5;
}

.hotspot-mobile-panel {
  display: none;
}

/* Accurate Coordinates matching the physical photograph */
.hotspot-1 { top: 6%; left: 51%; } /* Male Pyramid Connector */
.hotspot-1 .hotspot-card { top: 20px; left: 45px; }

.hotspot-2 { top: 18%; left: 40%; } /* Polycentric Axis & Pivot Bolt */
.hotspot-2 .hotspot-card { top: -20px; right: 45px; }

.hotspot-3 { top: 35%; left: 52%; } /* Pneumatic Cylinder & Polished Rod */
.hotspot-3 .hotspot-card { top: -20px; left: 45px; }

.hotspot-4 { top: 30%; left: 38%; } /* Lightweight Skeletonized Chassis */
.hotspot-4 .hotspot-card { top: 10px; right: 45px; }

.hotspot-5 { bottom: 20%; left: 49%; } /* Lower Tube Clamp & Resistance Adjuster */
.hotspot-5 .hotspot-card { bottom: -20px; left: 45px; }

/* ==========================================================================
   SECTION 04: WHY STHIRĀ? (COMPARISON SECTION)
   ========================================================================== */
.comparison-table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  box-shadow: var(--shadow-md);
  margin-bottom: 1.5rem;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 650px;
}

.comparison-table th, .comparison-table td {
  padding: 1.25rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.comparison-table th {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: rgba(12, 20, 39, 0.95);
}

.comparison-table th.col-sthira {
  background: rgba(124, 58, 237, 0.1);
  color: var(--accent-teal);
  border-top: 3px solid var(--accent-teal);
}

.comparison-table td.col-sthira {
  background: rgba(124, 58, 237, 0.03);
  font-weight: 600;
  color: #ffffff;
}

.comparison-table tr:hover td {
  background-color: rgba(255, 255, 255, 0.02);
}

.comparison-table tr:hover td.col-sthira {
  background-color: rgba(124, 58, 237, 0.06);
}

.disclaimer-box {
  background: rgba(245, 158, 11, 0.06);
  border-left: 3px solid var(--status-pending);
  padding: 0.9rem 1.25rem;
  border-radius: var(--radius-xs);
  font-size: 0.825rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   SECTION 05: FEATURES (DESIGNED FOR EVERYDAY MOVEMENT)
   ========================================================================== */
.features-grid {
  display: grid;
  width: 100%;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.75rem;
}

.features-showcase-media {
  position: relative;
  width: 100%;
  max-width: none;
  height: clamp(280px, 38vw, 520px);
  aspect-ratio: auto;
  margin-bottom: 1.75rem;
  overflow: hidden;
  background: #050b16;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.features-showcase-video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.features-showcase-shade {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(5, 11, 22, 0.02) 45%, rgba(5, 11, 22, 0.58) 100%);
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: all var(--trans-base);
  position: relative;
  overflow: hidden;
  min-width: 0;
}

.feature-card:hover {
  border-color: var(--accent-teal);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-teal);
}

.feature-icon-box {
  width: 54px;
  height: 54px;
  background: var(--accent-teal-subtle);
  border: 1px solid rgba(124, 58, 237, 0.25);
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-teal);
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
}

.feature-desc {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.feature-benefit-tag {
  margin-top: auto;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-teal);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ==========================================================================
   SECTION 06: HOW IT WORKS
   ========================================================================== */
.gait-flow-wrap {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2.5rem 2rem;
  margin-bottom: 2.5rem;
}

.gait-diagram {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  overflow-x: auto;
  padding: 1rem 0;
}

.gait-node {
  flex: 1;
  min-width: 160px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 1.25rem 1rem;
  text-align: center;
  position: relative;
  transition: all var(--trans-fast);
}

.gait-node.active {
  border-color: var(--accent-teal);
  box-shadow: 0 0 15px rgba(124, 58, 237, 0.25);
  background: rgba(124, 58, 237, 0.05);
}

.gait-node-step {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-teal);
  letter-spacing: 0.1em;
  margin-bottom: 0.35rem;
}

.gait-node-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  text-transform: uppercase;
}

.gait-arrow {
  padding: 0 0.75rem;
  color: var(--accent-teal);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.passive-traits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
}

.trait-item {
  background: rgba(16, 26, 49, 0.6);
  border: 1px solid var(--border-subtle);
  padding: 1.15rem;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.trait-badge-no {
  font-size: 0.65rem;
  font-weight: 700;
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  padding: 0.2rem 0.45rem;
  border-radius: var(--radius-xs);
  letter-spacing: 0.05em;
}

/* ==========================================================================
   SECTION 07: TECHNOLOGY ARCHITECTURE (KINEMATIC CHAIN)
   ========================================================================== */
.chain-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
  position: relative;
}

.chain-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2rem 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  position: relative;
}

.chain-card.highlight {
  background: rgba(124, 58, 237, 0.06);
  border-color: var(--accent-teal);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.15);
}

.chain-card.highlight::before {
  content: 'CORE PRODUCT';
  position: absolute;
  top: -11px;
  font-family: var(--font-heading);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  background: var(--accent-teal);
  color: #051923;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-xs);
}

.chain-level {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

.chain-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: #ffffff;
}

.chain-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.tech-advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
}

.tech-advantage-pill {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 1.15rem;
  border-radius: var(--radius-xs);
  text-align: center;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: #ffffff;
  letter-spacing: 0.03em;
}

/* ==========================================================================
   SECTION 08: TECHNICAL SPECIFICATIONS
   ========================================================================== */
.spec-table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
}

.spec-table th, .spec-table td {
  padding: 1.15rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.spec-table th {
  background: rgba(12, 20, 39, 0.95);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.spec-param-name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.925rem;
  color: #ffffff;
}

.spec-param-cat {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.spec-param-val {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-primary);
}

/* ==========================================================================
   SECTION 09 & 13: VALIDATION & TRACTION TIMELINE
   ========================================================================== */
.timeline-track {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
  position: relative;
  margin-top: 2rem;
}

.timeline-track::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 5%;
  width: 90%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-teal) 0%, rgba(124, 58, 237, 0.3) 100%);
  z-index: 1;
}

.timeline-step {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
}

.timeline-dot {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--accent-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-teal);
  box-shadow: 0 0 12px rgba(124, 58, 237, 0.25);
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 1.25rem 1rem;
  width: 100%;
}

.timeline-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.35rem;
}

.timeline-status {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   SECTION 10: APPLICATIONS (AUDIENCE CARDS)
   ========================================================================== */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
}

.app-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2.25rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: all var(--trans-base);
}

.app-card:hover {
  border-color: var(--accent-teal);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-teal);
}

.app-card-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
}

.app-card-desc {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   SECTION 11 & 12: ACCESS, DISTRIBUTION & GO-TO-MARKET
   ========================================================================== */
.channels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.channel-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.channel-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-teal-subtle);
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-teal);
  flex-shrink: 0;
}

.channel-name {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
}

.distribution-feature-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 2rem;
  align-items: stretch;
  margin: 2.5rem 0 2rem;
}

.distribution-video-wrap,
.social-impact-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  overflow: hidden;
}

.distribution-video {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 260px;
  object-fit: cover;
}

.social-impact-panel {
  padding: clamp(1.5rem, 3vw, 2.25rem);
}

.social-impact-panel h3 {
  margin: 0.75rem 0 1rem;
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  color: #ffffff;
}

.social-impact-panel p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* Ecosystem Horizontal Journey */
.gtm-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 1.5rem 0;
  margin-bottom: 3rem;
}

.gtm-node {
  flex: 1;
  min-width: 150px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 1.25rem 0.75rem;
  text-align: center;
}

.gtm-node-title {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #ffffff;
  text-transform: uppercase;
}

.gtm-arrow {
  color: var(--accent-teal);
  font-size: 1.15rem;
  flex-shrink: 0;
}

/* 4 Channel Strategies */
.strategies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.strategy-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.strategy-num {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-teal);
}

.strategy-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
}

.strategy-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   SECTION 14: INTERACTIVE GALLERY & LIGHTBOX
   ========================================================================== */
/* ==========================================================================
   SECTION 15 & 16: TEAM, VISION & FUNDING / DEVELOPMENT
   ========================================================================== */
.team-vision-banner {
  background: rgba(12, 20, 39, 0.85);
  border-left: 3px solid var(--accent-teal);
  border-top: 1px solid var(--border-subtle);
  border-right: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1.5rem 2rem;
  border-radius: var(--radius-xs);
  margin-bottom: 3.5rem;
}

.team-vision-quote {
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  font-weight: 500;
  color: #ffffff;
  font-style: italic;
}

.team-group-label {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-teal);
  margin-bottom: 1.25rem;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.75rem;
  margin-bottom: 3rem;
}

.team-member-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: all var(--trans-base);
}

.team-member-card:hover {
  border-color: var(--accent-teal);
  transform: translateY(-3px);
}

.team-member-photo {
  width: 88px;
  height: 88px;
  object-fit: cover;
  object-position: center;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
}

.team-member-role {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent-teal);
  text-transform: uppercase;
}

.team-member-name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
}

.support-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.support-card-logo {
  width: 100%;
  height: 84px;
  object-fit: contain;
  object-position: center;
  background: rgba(255, 255, 255, 0.96);
  border-radius: var(--radius-xs);
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.25rem;
}

.support-card-tag {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--brand-purple-light);
  text-transform: uppercase;
}

.support-card-name {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: #ffffff;
}

.support-card-desc {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   SECTION 17: COMPANY PROFILE
   ========================================================================== */
.company-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: clamp(2rem, 4vw, 3.5rem);
}

.company-meta-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 3rem;
  padding-bottom: 2rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-subtle);
}

.company-meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.meta-key {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.meta-val {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
}

/* ==========================================================================
   SECTION 18: FUTURE PRODUCT (GROWSTEP)
   ========================================================================== */
.growstep-box {
  background: linear-gradient(135deg, rgba(17, 29, 56, 0.8) 0%, rgba(12, 20, 39, 0.95) 100%);
  border: 1px solid var(--border-tech);
  border-radius: var(--radius-sm);
  padding: clamp(2rem, 4vw, 3.5rem);
  position: relative;
  overflow: hidden;
}

.growstep-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 3rem;
}

.growstep-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--status-pending);
  background: var(--status-pending-bg);
  border: 1px solid rgba(245, 158, 11, 0.35);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-xs);
  margin-bottom: 1rem;
}

.growstep-title {
  font-family: var(--font-heading);
  font-size: var(--text-h2);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.5rem;
}

.patent-citation {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-teal);
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}

.growstep-desc {
  font-size: var(--text-body-lg);
  color: var(--text-secondary);
  line-height: 1.6;
}

.growstep-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
}

.growstep-girl-image {
  display: block;
  width: 100%;
  max-width: 400px;
  max-height: 360px;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
}

/* ==========================================================================
   SECTION 19: SAFETY & COMPLIANCE
   ========================================================================== */
.compliance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.compliance-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.compliance-status {
  margin-top: auto;
  padding-top: 0.75rem;
}

.compliance-name {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
}

.compliance-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   SECTION 20 & 21: CONTACT & FOOTER
   ========================================================================== */
.contact-hero-wrap {
  background: radial-gradient(circle at 50% 30%, rgba(124, 58, 237, 0.1) 0%, transparent 60%),
              var(--bg-secondary);
  border: 1px solid var(--border-tech);
  border-radius: var(--radius-md);
  padding: clamp(2.5rem, 5vw, 4.5rem) 2rem;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.contact-headline {
  font-family: var(--font-heading);
  font-size: var(--text-h1);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1rem;
}

.contact-subtext {
  font-size: var(--text-body-lg);
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto 2.5rem auto;
  line-height: 1.6;
}

.contact-direct-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  margin-bottom: 3.5rem;
}

.directors-contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.75rem;
  max-width: 750px;
  margin: 0 auto;
  text-align: left;
}

.director-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.director-role {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-teal);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.director-name {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
}

.director-phone-link {
  font-size: 0.95rem;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.25rem;
  transition: color var(--trans-fast);
}

.director-phone-link:hover {
  color: var(--accent-teal);
}

.contact-address {
  max-width: 620px;
  margin: 0 auto 2.5rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  line-height: 1.6;
}

.contact-address strong {
  display: block;
  margin-bottom: 0.25rem;
  color: #ffffff;
  font-family: var(--font-heading);
}

/* Site Footer */
.site-footer {
  background: #03060c;
  border-top: 1px solid var(--border-subtle);
  padding: 3.5rem 0 2rem 0;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-tagline {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  color: var(--accent-teal);
  font-style: italic;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-nav-link {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--trans-fast);
}

.footer-nav-link:hover {
  color: #ffffff;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-top: 2rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   PRODUCT VIDEO & GAIT MOTION SHOWCASE
   ========================================================================== */
.video-showcase-box {
  position: relative;
  background: radial-gradient(circle at 50% 50%, rgba(15, 29, 58, 0.9) 0%, #060913 85%);
  border: 1px solid var(--border-tech);
  border-radius: var(--radius-md);
  padding: clamp(1.75rem, 4vw, 3rem) clamp(1.25rem, 3vw, 2.5rem);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.75), 0 0 40px rgba(124, 58, 237, 0.12);
  overflow: hidden;
}

.video-player-wrap {
  position: relative;
  width: 100%;
  max-width: 940px;
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  background: #040812;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.9);
}

.video-element {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.video-poster-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(5, 9, 18, 0.55), rgba(5, 9, 18, 0.85)), url('../assets/sthira-knee-hero.png');
  background-size: cover;
  background-position: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 5;
  cursor: pointer;
  transition: opacity var(--trans-base);
}

.video-poster-overlay.playing {
  opacity: 0;
  pointer-events: none;
}

.video-play-btn {
  width: 76px;
  height: 76px;
  background: var(--accent-teal);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #051923;
  box-shadow: 0 0 35px rgba(124, 58, 237, 0.7);
  cursor: pointer;
  transition: transform var(--trans-fast), background-color var(--trans-fast);
}

.video-poster-overlay:hover .video-play-btn {
  transform: scale(1.1);
  background: #ffffff;
  color: #070c18;
}

.video-meta-label {
  margin-top: 1.25rem;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.video-meta-sub {
  font-size: 0.85rem;
  color: var(--accent-teal);
  margin-top: 0.35rem;
  font-weight: 500;
}

.video-timeline-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.video-timestamp-btn {
  background: rgba(16, 26, 49, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 0.65rem 1.15rem;
  color: var(--text-secondary);
  font-family: var(--font-heading);
  font-size: 0.825rem;
  font-weight: 600;
  transition: all var(--trans-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.video-timestamp-btn:hover, .video-timestamp-btn.active {
  color: #ffffff;
  border-color: var(--accent-teal);
  background: rgba(124, 58, 237, 0.12);
  transform: translateY(-2px);
}