/* ==========================================================================
   CHEMZONE - COMING SOON EXPERIENCE
   Architecture: Advanced Construction Chemistry Laboratory
   Style System: Vanilla CSS with Custom Properties, Spatial Perspective & GPU Acceleration
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. DESIGN TOKENS & SYSTEM VARIABLES
   -------------------------------------------------------------------------- */
:root {
  /* Canvas & Spatial Surfaces */
  --canvas: #090e14;              /* Deep technical obsidian tinted with cool cyan */
  --canvas-deep: #05080c;         /* Subterranean foundation black */
  --canvas-elevated: #0f1722;     /* Mid-tier architectural plane */
  --panel: rgba(15, 23, 34, 0.72); /* Glassmorphic laboratory panel */
  --panel-raised: #15202e;        /* Elevated card & specimen plinth */
  --panel-border: rgba(124, 211, 247, 0.12); /* Precision perimeter line */
  --panel-border-hover: rgba(0, 162, 255, 0.35);

  /* Brand Palette Extracted from Chemzone Identity */
  --brand-primary: #0f5ca8;       /* Chemzone Brand Blue */
  --brand-secondary: #0088d6;     /* Precision Cobalt / Cyan */
  --brand-accent: #00a8ff;        /* Active Laboratory Energy / Focus */
  --brand-accent-glow: rgba(0, 168, 255, 0.28);
  --brand-highlight: #7cd3f7;     /* Crystal facet light blue */
  --brand-amber: #f59e0b;         /* Industrial yellow-amber accent for technical alerts */

  /* Typography Colors */
  --text-primary: #f2f6fa;        /* Pure technical readable off-white */
  --text-secondary: #9db2c9;      /* Calibrated slate blue for readable body copy */
  --text-muted: #566c82;          /* Restrained coordinate grey */
  --text-bright: #ffffff;

  /* Architectural Grid & Technical Coordinate Guides */
  --grid-line: rgba(0, 136, 214, 0.05);
  --grid-line-strong: rgba(0, 136, 214, 0.12);
  --crosshair: rgba(124, 211, 247, 0.22);
  --focus-ring: #00a8ff;

  /* Typography Families */
  --font-display: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Space Mono", "SF Mono", Consolas, Menlo, monospace;

  /* Spatial Transitions & Easing Curves */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out-smooth: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 0.2s;
  --duration-medium: 0.4s;
  --duration-slow: 0.8s;

  /* Layout Boundaries */
  --max-width: 1340px;
  --header-height: 80px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-pill: 9999px;
}

/* --------------------------------------------------------------------------
   2. RESET & BASE ELEMENTS
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
  background-color: var(--canvas);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.65;
  color: var(--text-secondary);
  background: var(--canvas);
  min-height: 100vh;
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
  position: relative;
}

/* Accessibility: Skip to Content */
.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 1000;
  padding: 0.75rem 1.25rem;
  background: var(--brand-accent);
  color: #000;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transform: translateY(-200%);
  transition: transform var(--duration-fast) ease;
}
.skip-link:focus-visible {
  transform: translateY(0);
}

/* Focus Visible Standard */
:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Pause animations when tab is backgrounded */
body.tab-paused *,
body.tab-paused *::before,
body.tab-paused *::after {
  animation-play-state: paused !important;
}

/* --------------------------------------------------------------------------
   3. GLOBAL AMBIENT ENVIRONMENT & FIXED CANVAS
   -------------------------------------------------------------------------- */
.ambient-environment {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
  contain: strict;
}

/* Technical Architectural Grid */
.ambient-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(circle at 50% 40%, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.2) 80%, transparent 100%);
  -webkit-mask-image: radial-gradient(circle at 50% 40%, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.2) 80%, transparent 100%);
}

/* Subterranean Radial Lab Lighting */
.ambient-glow {
  position: absolute;
  top: -15%;
  left: 50%;
  transform: translateX(-50%);
  width: min(1200px, 100vw);
  height: 800px;
  background: radial-gradient(ellipse at center, rgba(15, 92, 168, 0.18) 0%, rgba(0, 136, 214, 0.08) 45%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
}

.ambient-glow-secondary {
  position: absolute;
  bottom: 10%;
  right: 0;
  width: min(800px, 80vw);
  height: 700px;
  background: radial-gradient(circle at center, rgba(0, 168, 255, 0.07) 0%, transparent 70%);
  filter: blur(90px);
  pointer-events: none;
}

/* Top Subtle Horizon Line */
.ambient-horizon {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(124, 211, 247, 0.2), transparent);
}

/* Container Structure */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1rem, 3.5vw, 3rem);
  padding-right: clamp(1rem, 3.5vw, 3rem);
  position: relative;
  z-index: 2;
  overflow-x: clip;
}

/* --------------------------------------------------------------------------
   4. HEADER & FLOATING NAVIGATION
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 100;
  transition: background-color var(--duration-medium) ease, 
              border-color var(--duration-medium) ease, 
              backdrop-filter var(--duration-medium) ease,
              box-shadow var(--duration-medium) ease;
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background-color: rgba(9, 14, 20, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--panel-border);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}

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

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: opacity var(--duration-fast) ease;
}
.brand-link:hover {
  opacity: 0.92;
}

.brand-logo-img {
  height: 38px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.4));
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0.25rem;
  transition: color var(--duration-fast) ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--brand-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-fast) var(--ease-out-expo);
}

.nav-link:hover {
  color: var(--text-bright);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

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

/* High-precision Architectural Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out-expo);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand-secondary), var(--brand-primary));
  color: var(--text-bright);
  border: 1px solid rgba(124, 211, 247, 0.4);
  box-shadow: 0 4px 18px rgba(0, 136, 214, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--brand-accent), var(--brand-secondary));
  border-color: var(--brand-highlight);
  box-shadow: 0 6px 24px var(--brand-accent-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(15, 23, 34, 0.6);
  color: var(--text-primary);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(21, 32, 46, 0.85);
  border-color: var(--brand-secondary);
  color: var(--text-bright);
  transform: translateY(-1px);
}

.btn-header {
  padding: 0.55rem 1.1rem;
  font-size: 0.7188rem;
}

/* Mobile Menu Toggle Button */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--panel-border);
  background: rgba(15, 23, 34, 0.7);
  z-index: 110;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--text-primary);
  transition: transform var(--duration-fast) ease, opacity var(--duration-fast) ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation Drawer */
.mobile-drawer {
  position: fixed;
  inset: 0;
  background: rgba(9, 14, 20, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 90;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-10px);
  transition: opacity var(--duration-medium) ease, transform var(--duration-medium) var(--ease-out-expo);
  padding: 2rem;
}

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

.mobile-nav-link {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  transition: color var(--duration-fast) ease;
}
.mobile-nav-link:hover {
  color: var(--brand-accent);
}

/* --------------------------------------------------------------------------
   5. HERO SECTION & 3D MULTI-PLANE SYSTEM
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + 2rem);
  padding-bottom: 4rem;
  overflow: hidden;
  perspective: 1200px;
}

/* Canvas Plane: Chemzone Molecular Structure Field */
.hero-canvas-container {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: auto;
}

#hero-molecule-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Hero Content Grid: Front Planes */
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 4.5rem);
  position: relative;
  z-index: 3;
}

/* Hero Text & Narrative Plane */
.hero-narrative {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transform-style: preserve-3d;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-mono);
  font-size: clamp(0.625rem, 2.4vw, 0.6875rem);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-highlight);
  background: rgba(0, 136, 214, 0.12);
  border: 1px solid rgba(124, 211, 247, 0.28);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1.5rem;
  backdrop-filter: blur(6px);
  max-width: 100%;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--brand-accent);
  box-shadow: 0 0 10px var(--brand-accent);
  animation: pulse-dot 2.5s infinite var(--ease-in-out-smooth);
  flex-shrink: 0;
}

@keyframes pulse-dot {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.35;
    transform: scale(0.85);
  }
}

.hero-label {
  font-family: var(--font-mono);
  font-size: clamp(0.6875rem, 2.2vw, 0.75rem);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brand-secondary);
  margin-bottom: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.hero-label::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--brand-secondary);
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 3.85rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text-bright);
  margin-bottom: 1.5rem;
  max-width: 24ch;
  text-wrap: balance;
  word-break: break-word;
  overflow-wrap: break-word;
}

.hero-headline-highlight {
  background: linear-gradient(135deg, #ffffff 40%, var(--brand-highlight) 90%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: clamp(1rem, 1.25vw, 1.125rem);
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 48ch;
  margin-bottom: 2.25rem;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.1rem;
  margin-bottom: 2.5rem;
}

/* Technical Coordinate Metadata strip */
.hero-metadata-strip {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--panel-border);
  width: 100%;
  max-width: 520px;
}

.metadata-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.metadata-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.metadata-val {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

/* --------------------------------------------------------------------------
   6. HERO PRODUCT 3D LABORATORY STAGE
   -------------------------------------------------------------------------- */
.hero-product-stage {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform-style: preserve-3d;
}

/* Laboratory Specimen Plinth and Brackets */
.specimen-podium {
  position: relative;
  width: 100%;
  max-width: 460px;
  background: linear-gradient(165deg, rgba(21, 32, 46, 0.75) 0%, rgba(11, 17, 25, 0.85) 100%);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem 1.75rem;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 
    0 24px 60px rgba(0, 0, 0, 0.6),
    0 0 40px rgba(0, 136, 214, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  transform-style: preserve-3d;
  transition: transform 0.15s ease-out, border-color var(--duration-medium) ease;
}

.specimen-podium:hover {
  border-color: var(--panel-border-hover);
}

/* Precision Corner Crosshair Brackets */
.podium-corner {
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--brand-highlight);
  pointer-events: none;
  opacity: 0.75;
}
.podium-corner.tl { top: 8px; left: 8px; border-top: 2px solid; border-left: 2px solid; }
.podium-corner.tr { top: 8px; right: 8px; border-top: 2px solid; border-right: 2px solid; }
.podium-corner.bl { bottom: 8px; left: 8px; border-bottom: 2px solid; border-left: 2px solid; }
.podium-corner.br { bottom: 8px; right: 8px; border-bottom: 2px solid; border-right: 2px solid; }

.podium-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px dashed rgba(124, 211, 247, 0.15);
}

.podium-tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--brand-highlight);
  background: rgba(0, 136, 214, 0.15);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
}

.podium-coord {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

/* Product Photographic Chamber */
.specimen-viewport {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 340px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 50%, #ffffff 0%, #f4f6f9 65%, #e2e8f0 100%);
  border-radius: var(--radius-md);
  box-shadow: 
    inset 0 0 20px rgba(0, 0, 0, 0.08),
    0 16px 36px rgba(0, 0, 0, 0.45);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.specimen-image {
  max-width: 86%;
  max-height: 86%;
  object-fit: contain;
  transition: transform var(--duration-medium) var(--ease-out-expo), opacity var(--duration-medium) ease;
  filter: drop-shadow(0 14px 22px rgba(0, 0, 0, 0.22));
}

.specimen-info {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.specimen-name {
  font-family: var(--font-display);
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.01em;
}

.specimen-category {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--brand-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.specimen-specs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.spec-item {
  display: flex;
  flex-direction: column;
}

.spec-key {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  text-transform: uppercase;
  color: var(--text-muted);
}

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

/* Hero Mini Specimen Selector */
.podium-selector {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 1.25rem;
  width: 100%;
}

.podium-dot {
  width: 36px;
  height: 4px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
  transition: all var(--duration-fast) ease;
  border: none;
  cursor: pointer;
}

.podium-dot:hover {
  background: rgba(124, 211, 247, 0.5);
}

.podium-dot.active {
  background: var(--brand-accent);
  box-shadow: 0 0 8px var(--brand-accent);
  width: 54px;
}

/* Refined Scroll Indicator */
.hero-scroll-cue {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 4;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: opacity var(--duration-fast) ease;
}

.scroll-track {
  width: 18px;
  height: 30px;
  border: 1px solid rgba(124, 211, 247, 0.25);
  border-radius: var(--radius-pill);
  display: flex;
  justify-content: center;
  padding-top: 4px;
}

.scroll-thumb {
  width: 3px;
  height: 6px;
  background-color: var(--brand-accent);
  border-radius: var(--radius-pill);
  animation: scroll-bob 2.2s infinite ease-in-out;
}

@keyframes scroll-bob {
  0% { transform: translateY(0); opacity: 1; }
  60% { transform: translateY(12px); opacity: 0; }
  61% { transform: translateY(0); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

/* --------------------------------------------------------------------------
   7. ABOUT CHEMZONE SECTION
   Editorial Architectural Layout
   -------------------------------------------------------------------------- */
.section-wrapper {
  position: relative;
  padding: clamp(5rem, 8vw, 8rem) 0;
  z-index: 2;
}

.section-header-tag {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.7188rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brand-secondary);
  margin-bottom: 1.5rem;
}

.section-header-tag::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 2px;
  background-color: var(--brand-accent);
}

.about-editorial-grid {
  display: grid;
  grid-template-columns: 1.15fr 40px 1fr;
  gap: 2.5rem;
  align-items: start;
}

.about-statement-col {
  display: flex;
  flex-direction: column;
}

.about-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.about-statement {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.4vw, 3.125rem);
  font-weight: 700;
  line-height: 1.18;
  color: var(--text-bright);
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
  text-wrap: balance;
}

.about-statement-accent {
  color: var(--brand-highlight);
}

.about-taxonomy-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1rem;
}

.taxonomy-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: var(--panel);
  border: 1px solid var(--panel-border);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) ease;
}

.taxonomy-badge:hover {
  border-color: var(--brand-secondary);
  color: var(--text-bright);
  transform: translateY(-2px);
}

/* Corporate Presentation Profile Matrix */
.corporate-presentation-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--panel-border);
}

.profile-card {
  background: rgba(14, 22, 32, 0.7);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  transition: border-color var(--duration-fast) ease, transform var(--duration-fast) ease;
}

.profile-card:hover {
  border-color: var(--brand-secondary);
  transform: translateY(-2px);
}

.profile-card-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-highlight);
}

.profile-card-val {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-bright);
}

.profile-card-desc {
  font-size: 0.8438rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Center Technical Line */
.about-divider-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  position: relative;
}

.technical-line {
  width: 1px;
  height: 100%;
  min-height: 320px;
  background: linear-gradient(to bottom, transparent, var(--panel-border-hover) 20%, var(--brand-secondary) 50%, var(--panel-border-hover) 80%, transparent);
  position: relative;
}

.technical-node {
  width: 9px;
  height: 9px;
  background: var(--brand-accent);
  border: 2px solid var(--canvas);
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 10px var(--brand-accent);
}

.about-narrative-col {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.about-narrative-col p strong {
  color: var(--text-primary);
  font-weight: 600;
}

.quote-panel {
  background: rgba(15, 23, 34, 0.5);
  border-left: 2px solid var(--brand-secondary);
  padding: 1.25rem 1.5rem;
  margin-top: 1rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.quote-panel p {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-style: italic;
  color: var(--text-bright);
  line-height: 1.5;
}

.quote-author {
  display: block;
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-style: normal;
  color: var(--brand-highlight);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   8. SIGNATURE INTERACTIVE MOMENT: "BUILD THE BOND"
   -------------------------------------------------------------------------- */
.bond-interactive-section {
  position: relative;
  padding: clamp(4rem, 7vw, 6rem) 0;
  z-index: 2;
  overflow: hidden;
  scroll-margin-top: 100px;
}

.bond-chamber {
  position: relative;
  background: linear-gradient(170deg, rgba(17, 26, 38, 0.8) 0%, rgba(9, 14, 20, 0.95) 100%);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 4rem);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
  text-align: center;
}

.bond-header {
  max-width: 680px;
  margin: 0 auto 2.5rem;
}

.bond-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
}

.bond-subline {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Substrate Systems Selector Bar */
.substrate-systems-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  max-width: 900px;
  margin: 0 auto 1.75rem;
  padding: 0.35rem;
  background: rgba(15, 23, 34, 0.7);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  overflow-x: auto;
  scrollbar-width: none;
}

.substrate-systems-bar::-webkit-scrollbar {
  display: none;
}

.sub-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 0.8rem;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
  cursor: pointer;
  transition: all var(--duration-fast) ease;
}

.sub-tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.sub-tab-btn.active {
  color: var(--text-bright);
  background: rgba(15, 92, 168, 0.35);
  border-color: var(--brand-secondary);
  box-shadow: 0 0 12px rgba(0, 136, 214, 0.25);
}

.sub-tab-num {
  font-size: 0.6875rem;
  color: var(--brand-accent);
  opacity: 0.8;
}

/* Material Cross Section Apparatus */
.bond-apparatus {
  position: relative;
  width: 100%;
  max-width: 880px;
  min-height: 250px;
  margin: 0 auto 2.25rem;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  padding: 0;
}

.substrate-block {
  width: 38%;
  background: linear-gradient(145deg, rgba(20, 31, 45, 0.96), rgba(12, 18, 28, 0.98));
  border: 1px solid rgba(124, 211, 247, 0.22);
  border-radius: var(--radius-md);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.25rem;
  overflow: hidden;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.6), 0 8px 30px rgba(0, 0, 0, 0.35);
  transition: transform 0.2s cubic-bezier(0.2, 0, 0.3, 1), border-color 0.3s ease, box-shadow 0.3s ease;
}

.substrate-block.bonded {
  border-color: var(--brand-accent);
  box-shadow: inset 0 0 25px rgba(0, 168, 255, 0.15), 0 8px 32px rgba(0, 136, 214, 0.25);
}

.substrate-left {
  transform: translateX(0);
}

.substrate-right {
  transform: translateX(0);
}

/* Architectural Strata / Hatching Texture Layer */
.substrate-texture-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.65;
  transition: opacity 0.3s ease;
}

.substrate-hatch-svg {
  width: 100%;
  height: 100%;
  display: block;
}

.strata-grid-line {
  stroke: rgba(124, 211, 247, 0.08);
  stroke-width: 1;
  stroke-dasharray: 2 4;
}

.hatch-line {
  stroke: rgba(255, 255, 255, 0.05);
  stroke-width: 1;
}

.aggregate-poly {
  fill: rgba(15, 92, 168, 0.18);
  stroke: rgba(124, 211, 247, 0.2);
  stroke-width: 1;
}

.aggregate-circle {
  fill: rgba(0, 168, 255, 0.15);
  stroke: rgba(255, 255, 255, 0.15);
  stroke-width: 0.75;
}

/* Substrate Card Content */
.substrate-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.substrate-meta-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.substrate-tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-accent);
}

.substrate-class-badge {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.125rem 0.375rem;
  background: rgba(0, 136, 214, 0.2);
  border: 1px solid rgba(0, 168, 255, 0.3);
  border-radius: var(--radius-xs);
  color: var(--text-bright);
  text-transform: uppercase;
}

.substrate-name {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin: 0;
}

.substrate-grade {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  margin-bottom: 0.75rem;
}

.substrate-spec-pills {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-top: auto;
}

.sub-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.25rem 0.5rem;
  background: rgba(10, 15, 23, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 0.625rem;
}

.sub-pill-k {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.sub-pill-v {
  color: var(--brand-highlight);
  font-weight: 600;
}

/* Interfacial Micro-Anchor Teeth on Substrate Edge */
.interface-edge {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 6px;
  z-index: 3;
  pointer-events: none;
  background: repeating-linear-gradient(
    180deg,
    rgba(0, 136, 214, 0.3) 0,
    rgba(0, 136, 214, 0.3) 6px,
    transparent 6px,
    transparent 12px
  );
  transition: all 0.2s ease;
}

.edge-right {
  right: 0;
  border-left: 1px solid rgba(0, 168, 255, 0.3);
}

.edge-left {
  left: 0;
  border-right: 1px solid rgba(0, 168, 255, 0.3);
}

.substrate-block.bonded .interface-edge {
  background: repeating-linear-gradient(
    180deg,
    var(--brand-accent) 0,
    var(--brand-accent) 6px,
    rgba(0, 136, 214, 0.5) 6px,
    rgba(0, 136, 214, 0.5) 12px
  );
  box-shadow: 0 0 10px var(--brand-accent);
}

/* Physical Bond Gap with Formulation Matrix */
.bond-gap {
  position: relative;
  flex: 1;
  min-height: 100%;
  margin: 0 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.bond-agent-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.625rem;
  background: rgba(15, 92, 168, 0.25);
  border: 1px solid rgba(0, 168, 255, 0.35);
  border-radius: 9999px;
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--brand-highlight);
  white-space: nowrap;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.bond-agent-indicator .agent-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-accent);
  box-shadow: 0 0 6px var(--brand-accent);
  animation: pulse-dot 2s infinite;
}

#bond-lattice-svg {
  width: 100%;
  height: 130px;
  overflow: visible;
}

.lattice-path {
  fill: none;
  stroke: var(--brand-secondary);
  stroke-width: 1.5;
  stroke-dasharray: 4 4;
  opacity: 0.25;
  transition: opacity 0.15s ease, stroke 0.15s ease;
}

.lattice-active {
  stroke: var(--brand-accent);
  stroke-dasharray: none;
  opacity: 1;
  filter: drop-shadow(0 0 6px var(--brand-accent));
}

.bond-particle {
  fill: var(--brand-highlight);
  transition: transform 0.15s ease, opacity 0.15s ease;
}

/* Status Milestones Bar */
.bond-milestones {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  max-width: 740px;
  margin: 0 auto 2.5rem;
}

.milestone-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  opacity: 0.4;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.milestone-node.lit {
  opacity: 1;
  transform: translateY(-2px);
}

.milestone-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--panel-raised);
  border: 2px solid var(--text-muted);
  transition: all 0.3s ease;
}

.milestone-node.lit .milestone-indicator {
  background: var(--brand-accent);
  border-color: var(--text-bright);
  box-shadow: 0 0 10px var(--brand-accent);
}

.milestone-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.milestone-node.lit .milestone-label {
  color: var(--brand-highlight);
}

/* Hold Interaction Trigger Button */
.bond-trigger-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.bond-hold-btn {
  position: relative;
  min-width: 290px;
  height: 58px;
  background: rgba(15, 23, 34, 0.9);
  border: 1px solid var(--panel-border-hover);
  border-radius: var(--radius-sm);
  color: var(--text-bright);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  user-select: none;
  touch-action: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  transition: border-color var(--duration-fast) ease, transform 0.1s ease;
}

.bond-hold-btn:active {
  transform: scale(0.98);
}

.btn-progress-fill {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 0%;
  background: linear-gradient(90deg, rgba(15, 92, 168, 0.8), rgba(0, 168, 255, 0.85));
  z-index: 1;
  pointer-events: none;
  box-shadow: 0 0 20px rgba(0, 168, 255, 0.5);
  transition: width 0.05s linear;
}

.btn-label-text {
  position: relative;
  z-index: 2;
  pointer-events: none;
}

.bond-instruction {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

/* Result Reveal Box */
.bond-result-panel {
  display: none;
  margin-top: 2rem;
  padding: 1.5rem 2rem;
  background: rgba(15, 92, 168, 0.15);
  border: 1px solid var(--brand-secondary);
  border-radius: var(--radius-sm);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  box-shadow: 0 8px 30px rgba(0, 136, 214, 0.18);
  animation: fade-in-up 0.5s var(--ease-out-expo) forwards;
}

.bond-result-panel.visible {
  display: block;
}

.bond-result-headline {
  font-family: var(--font-display);
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--brand-highlight);
  letter-spacing: -0.01em;
  margin: 0 0 0.35rem;
}

.bond-result-text {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   9. THREE FORCES SECTION (TECHNOLOGY, MAN POWER, SUCCESS)
   Distinct layout architecture for each force
   -------------------------------------------------------------------------- */
.forces-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto clamp(3rem, 6vw, 5rem);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.12;
  color: var(--text-bright);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Force 1: Technology Power (Interactive Formulation Coordinate Engine) */
.force-block {
  margin-bottom: clamp(4rem, 7vw, 6.5rem);
}

.force-card-tech {
  background: linear-gradient(165deg, rgba(18, 27, 39, 0.75) 0%, rgba(10, 15, 22, 0.85) 100%);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 4vw, 3.5rem);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 3.5rem;
  align-items: center;
}

.force-kicker {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brand-highlight);
  margin-bottom: 0.85rem;
}

.force-heading {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 2.8vw, 2.6rem);
  font-weight: 700;
  line-height: 1.18;
  color: var(--text-bright);
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
}

.force-copy {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.75rem;
}

.tech-status-indicators {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.indicator-box {
  background: rgba(15, 23, 34, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: border-color var(--duration-fast) ease;
}

.indicator-box:hover {
  border-color: var(--brand-secondary);
}

.indicator-signal {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--brand-secondary);
  box-shadow: 0 0 6px var(--brand-secondary);
}

.indicator-name {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--text-primary);
  text-transform: uppercase;
}

/* Precision SVG Instrument Graphic */
.tech-schematic-wrap {
  position: relative;
  background: rgba(7, 11, 16, 0.8);
  border: 1px solid rgba(0, 136, 214, 0.2);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.7);
}

.schematic-header {
  display: flex;
  justify-content: space-between;
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

#tech-schematic-svg {
  width: 100%;
  height: auto;
  max-height: 280px;
}

/* Force 2: Man Power (Architectural Typography Banner & Field Expertise) */
.force-card-man {
  background: linear-gradient(135deg, rgba(16, 25, 36, 0.8) 0%, rgba(20, 31, 46, 0.6) 100%);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: clamp(2.5rem, 5vw, 4rem);
  position: relative;
  overflow: hidden;
}

.man-motto-banner {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.man-motto-tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--brand-secondary);
  margin-bottom: 0.5rem;
}

.man-motto-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text-bright);
}

.man-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.man-facet {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.man-facet-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--brand-highlight);
  letter-spacing: 0.1em;
}

.man-facet-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-bright);
}

.man-facet-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Force 3: Success Power (Disciplined Decisions & Analytical Rigor) */
.force-card-success {
  background: linear-gradient(165deg, rgba(14, 21, 31, 0.75) 0%, rgba(9, 14, 20, 0.85) 100%);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 4vw, 3.5rem);
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.success-pillars {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.pillar-row {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem 1.25rem;
  background: rgba(15, 23, 34, 0.5);
  border-left: 2px solid var(--brand-secondary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  transition: all var(--duration-fast) ease;
}

.pillar-row:hover {
  background: rgba(21, 32, 46, 0.7);
  border-left-color: var(--brand-accent);
  transform: translateX(4px);
}

.pillar-title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 0.25rem;
}

.pillar-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   10. TECHNOLOGY PROCESS VISUAL SECTION
   "PRECISION IN. CONSISTENCY OUT."
   -------------------------------------------------------------------------- */
.tech-flow-section {
  position: relative;
  padding: clamp(5rem, 8vw, 8rem) 0;
  z-index: 2;
  background: linear-gradient(180deg, transparent, rgba(15, 23, 34, 0.5) 50%, transparent);
}

.tech-flow-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 4rem;
}

.tech-flow-diagram {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.flow-step-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--duration-medium) var(--ease-out-expo);
}

.flow-step-card:hover {
  border-color: var(--brand-secondary);
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
}

.step-number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--brand-highlight);
  letter-spacing: 0.14em;
  margin-bottom: 1.25rem;
}

.step-node-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(0, 136, 214, 0.12);
  border: 1px solid rgba(124, 211, 247, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--brand-accent);
}

.step-node-icon svg {
  width: 22px;
  height: 22px;
}

.step-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.step-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Connecting Connector Vector Arrow */
.flow-step-card::after {
  content: "→";
  position: absolute;
  right: -1.1rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--brand-secondary);
  z-index: 5;
  pointer-events: none;
}
.flow-step-card:last-child::after {
  display: none;
}

/* --------------------------------------------------------------------------
   11. WHO WE ARE / EXPERTISE SECTION
   Spatial 3D Capability Node System
   -------------------------------------------------------------------------- */
.expertise-section {
  position: relative;
  padding: clamp(5rem, 8vw, 8rem) 0;
  z-index: 2;
}

.expertise-system-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
  margin-top: 3rem;
}

/* Left: Interactive Spatial Capability Nodes */
.expertise-nodes-column {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.expertise-node-card {
  background: rgba(15, 23, 34, 0.65);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.75rem;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out-expo);
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  position: relative;
}

.expertise-node-card:hover {
  background: rgba(21, 32, 46, 0.85);
  border-color: var(--panel-border-hover);
  transform: translateX(4px);
}

.expertise-node-card.active {
  background: linear-gradient(135deg, rgba(21, 35, 52, 0.95), rgba(15, 23, 34, 0.95));
  border-color: var(--brand-secondary);
  box-shadow: 0 10px 30px rgba(0, 136, 214, 0.2);
}

.node-code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--brand-highlight);
  background: rgba(0, 136, 214, 0.14);
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  margin-top: 0.15rem;
}

.node-text-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.node-title {
  font-family: var(--font-display);
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--text-bright);
}

.node-summary {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Right: Spatial Hub Viewport Display */
.expertise-display-column {
  position: relative;
  background: linear-gradient(165deg, rgba(17, 26, 38, 0.85), rgba(9, 14, 20, 0.95));
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 4vw, 3rem);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  min-height: 420px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hub-display-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.hub-active-id {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--brand-accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hub-status-live {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--brand-highlight);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hub-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-accent);
  box-shadow: 0 0 6px var(--brand-accent);
}

.hub-content-body {
  margin: 1.75rem 0;
}

.hub-detail-headline {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.hub-detail-paragraphs {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

.hub-detail-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
}

.hub-metric-item {
  display: flex;
  flex-direction: column;
}

.hub-metric-k {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hub-metric-v {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   12. PRODUCT PREVIEW SECTION
   Spatial Product Range Browser
   -------------------------------------------------------------------------- */
.products-section {
  position: relative;
  padding: clamp(5rem, 8vw, 8rem) 0;
  z-index: 2;
}

.product-browser-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
  margin-top: 3.5rem;
}

/* Left: Large Active Product Specimen Stage */
.active-product-stage {
  position: relative;
  background: linear-gradient(165deg, rgba(20, 30, 44, 0.8), rgba(11, 17, 25, 0.95));
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 4vw, 3rem);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
}

.product-viewport-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 380px;
  margin: 0 auto 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 50%, #ffffff 0%, #f1f5f9 70%, #cbd5e1 100%);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 
    inset 0 0 20px rgba(0, 0, 0, 0.08),
    0 16px 36px rgba(0, 0, 0, 0.4);
  overflow: hidden;
}

.browser-main-img {
  max-width: 84%;
  max-height: 84%;
  object-fit: contain;
  transition: transform var(--duration-medium) var(--ease-out-expo), opacity var(--duration-medium) ease;
  filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.25));
}

.product-spec-strip {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.product-id-tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--brand-highlight);
  text-transform: uppercase;
}

.product-title-large {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.2vw, 2rem);
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.01em;
}

.product-desc-large {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.product-attributes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.attr-item {
  display: flex;
  flex-direction: column;
}

.attr-k {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  text-transform: uppercase;
  color: var(--text-muted);
}

.attr-v {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Right: Technical Product Index */
.product-index-column {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.index-filter-bar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: rgba(15, 23, 34, 0.6);
  border: 1px solid var(--panel-border);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  transition: all var(--duration-fast) ease;
}

.filter-btn:hover,
.filter-btn.active {
  color: var(--text-bright);
  background: rgba(0, 136, 214, 0.2);
  border-color: var(--brand-secondary);
}

.product-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  max-height: 480px;
  overflow-y: auto;
  padding-right: 0.5rem;
}

/* Precision scrollbar */
.product-nav-list::-webkit-scrollbar {
  width: 4px;
}
.product-nav-list::-webkit-scrollbar-track {
  background: rgba(15, 23, 34, 0.3);
}
.product-nav-list::-webkit-scrollbar-thumb {
  background: var(--panel-border-hover);
  border-radius: 2px;
}

.product-nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: rgba(15, 23, 34, 0.5);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--duration-fast) ease;
}

.product-nav-item:hover {
  background: rgba(21, 32, 46, 0.8);
  border-color: var(--panel-border-hover);
  transform: translateX(3px);
}

.product-nav-item.active {
  background: linear-gradient(135deg, rgba(21, 35, 52, 0.9), rgba(15, 23, 34, 0.9));
  border-color: var(--brand-secondary);
  box-shadow: 0 4px 18px rgba(0, 136, 214, 0.15);
}

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

.nav-item-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
}
.product-nav-item.active .nav-item-num {
  color: var(--brand-highlight);
}

.nav-item-info {
  display: flex;
  flex-direction: column;
}

.nav-item-name {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
}
.product-nav-item.active .nav-item-name {
  color: var(--text-bright);
}

.nav-item-category {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.nav-item-arrow {
  color: var(--text-muted);
  font-size: 0.875rem;
  transition: transform var(--duration-fast) ease, color var(--duration-fast) ease;
}
.product-nav-item:hover .nav-item-arrow,
.product-nav-item.active .nav-item-arrow {
  color: var(--brand-accent);
  transform: translateX(3px);
}

/* --------------------------------------------------------------------------
   13. COMING SOON MESSAGE & CONTACT SECTION
   -------------------------------------------------------------------------- */
.coming-soon-section {
  position: relative;
  padding: clamp(5rem, 8vw, 8rem) 0;
  z-index: 2;
}

.coming-soon-card {
  position: relative;
  background: linear-gradient(165deg, rgba(18, 27, 39, 0.85) 0%, rgba(9, 14, 20, 0.95) 100%);
  border: 1px solid var(--panel-border-hover);
  border-radius: var(--radius-lg);
  padding: clamp(2.5rem, 5vw, 4.5rem);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 4rem;
  align-items: center;
}

.coming-soon-narrative {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.coming-soon-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.12;
  color: var(--text-bright);
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.coming-soon-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 2rem;
}

/* Verified Corporate Coordinates Panel */
.corporate-meta-box {
  background: rgba(12, 18, 26, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  width: 100%;
}

.meta-box-header {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brand-secondary);
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
}

.meta-entries {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.meta-entry {
  display: flex;
  flex-direction: column;
}

.meta-entry-label {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  text-transform: uppercase;
  color: var(--text-muted);
}

.meta-entry-val {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Inquiry Interface (Clean Finished Form with Development Mode Notification) */
.inquiry-card {
  background: rgba(14, 21, 31, 0.75);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.inquiry-card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-bright);
}

.inquiry-card-sub {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.form-input,
.form-textarea {
  width: 100%;
  background: rgba(8, 12, 18, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.875rem;
  transition: border-color var(--duration-fast) ease;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--brand-accent);
}

.form-textarea {
  resize: vertical;
  min-height: 90px;
}

.form-status-notice {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  line-height: 1.5;
  background: rgba(15, 23, 34, 0.6);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  border-left: 2px solid var(--brand-secondary);
}

/* --------------------------------------------------------------------------
   14. FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--panel-border);
  background: var(--canvas-deep);
  padding: 4rem 0 2.5rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3.5rem;
  margin-bottom: 3.5rem;
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.25rem;
}

.footer-logo-img {
  height: 34px;
  width: auto;
  object-fit: contain;
}

.footer-statement {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 40ch;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

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

.footer-link:hover {
  color: var(--brand-highlight);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
}

.footer-note {
  letter-spacing: 0.05em;
}

/* --------------------------------------------------------------------------
   15. GLOBAL MOTION & TRANSITION CLASSES
   GPU-Friendly transform & opacity transitions with IntersectionObserver
   -------------------------------------------------------------------------- */
.reveal-init {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slow) var(--ease-out-expo), transform var(--duration-slow) var(--ease-out-expo);
}

.reveal-init.in {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger utilities */
.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }
.delay-4 { transition-delay: 0.32s; }

/* --------------------------------------------------------------------------
   16. RESPONSIVE MEDIA QUERIES
   Calibrated for 1440px, 1280px, 1024px, 768px, 430px, 390px, 375px
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }

  .hero-narrative {
    align-items: center;
    text-align: center;
  }

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

  .hero-label::before {
    display: none;
  }

  .hero-description {
    max-width: 60ch;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .hero-metadata-strip {
    justify-content: center;
    max-width: 100%;
  }

  .hero-product-stage {
    margin: 0 auto;
    width: 100%;
  }

  .about-editorial-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-divider-col {
    display: none;
  }

  .force-card-tech {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .man-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .force-card-success {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .tech-flow-diagram {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  .flow-step-card::after {
    display: none;
  }

  .expertise-system-container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .product-browser-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .coming-soon-card {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .nav-desktop,
  .btn-header {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .hero-section {
    padding-top: calc(var(--header-height) + 1.5rem);
    min-height: auto;
  }

  .specimen-podium {
    padding: 1.75rem 1.25rem 1.25rem;
  }

  .specimen-viewport {
    max-width: 260px;
  }

  .substrate-systems-bar {
    justify-content: flex-start;
    padding: 0.25rem;
  }

  .sub-tab-btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.6875rem;
  }

  .bond-apparatus {
    min-height: 220px;
    height: auto;
    margin-bottom: 2rem;
  }

  .substrate-block {
    width: 44%;
    padding: 0.875rem;
  }

  .substrate-name {
    font-size: 0.9375rem;
  }

  .bond-milestones {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .tech-status-indicators {
    grid-template-columns: 1fr;
  }

  .tech-flow-diagram {
    grid-template-columns: 1fr;
  }

  .corporate-presentation-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .brand-logo-img {
    height: 28px;
    max-width: 180px;
  }

  .site-header {
    height: 68px;
  }

  .hero-section {
    padding-top: calc(68px + 1rem);
  }

  .hero-headline {
    font-size: clamp(1.45rem, 6.5vw, 1.9rem);
    line-height: 1.15;
    word-break: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
  }

  .status-badge {
    font-size: 0.6rem;
    padding: 0.35rem 0.65rem;
  }

  .hero-label {
    font-size: 0.65rem;
    letter-spacing: 0.12em;
  }

  .hero-description {
    font-size: 0.9375rem;
    line-height: 1.6;
  }

  .btn {
    width: 100%;
    min-height: 48px;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .hero-metadata-strip {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }

  .bond-apparatus {
    flex-direction: column;
    height: auto;
    min-height: auto;
    gap: 0.75rem;
  }

  .substrate-block {
    width: 100%;
    min-height: 130px;
    height: auto;
    padding: 0.875rem;
  }

  .edge-right,
  .edge-left {
    display: none;
  }

  .bond-gap {
    height: auto;
    min-height: 90px;
    width: 100%;
    margin: 0;
  }

  #bond-lattice-svg {
    height: 90px;
  }

  .bond-hold-btn {
    min-width: 100%;
  }

  .product-viewport-frame {
    max-width: 240px;
  }

  .product-attributes {
    grid-template-columns: 1fr;
  }
}

/* Touch Targets Standard */
@media (pointer: coarse) {
  .btn {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .nav-link,
  .footer-link,
  .product-nav-item {
    min-height: 44px;
    display: flex;
    align-items: center;
  }
}

/* --------------------------------------------------------------------------
   17. ACCESSIBILITY & PREFERS-REDUCED-MOTION
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal-init {
    opacity: 1 !important;
    transform: none !important;
  }

  .hero-scroll-cue,
  .status-dot {
    animation: none !important;
  }

  .btn-progress-fill {
    transition: none !important;
  }

  .substrate-left,
  .substrate-right {
    transform: none !important;
  }

  .milestone-node {
    opacity: 1 !important;
    transform: none !important;
  }

  .bond-result-panel {
    display: block !important;
  }
}