/* ============================================================
   ITGOESON — v6 — Senior UX Polish + Product Redesign
   ============================================================ */

:root {
  --bg-parchment:     #fcfbf8;
  --glass-bg:         rgba(252, 251, 248, 0.48);
  --glass-blur:       14px;
  --glass-border:     rgba(255, 255, 255, 0.5);
  --glass-card-bg:    rgba(255, 255, 255, 0.5);

  --text-dark:        #1a1f24;
  --text-muted:       #5c6873;
  --border-delicate:  rgba(0, 0, 0, 0.06);

  --accent-sage:      #2e7d32;
  --accent-sage-10:   rgba(46, 125, 50, 0.10);
  --accent-peach:     #c25c27;
  --accent-lavender:  #4f46e5;
  --accent-gold:      #a16207;

  --font-serif:   'Cormorant Garamond', Georgia, serif;
  --font-sans:    'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;

  --max-width:    1080px;
  --radius-sm:    4px;
  --radius-md:    8px;
  --radius-lg:    12px;

  --shadow-sm:    0 2px 8px rgba(0,0,0,0.04);
  --shadow-md:    0 8px 32px rgba(0,0,0,0.06);
  --shadow-lg:    0 16px 48px rgba(0,0,0,0.09);
  --shadow-glow:  0 0 32px rgba(46,125,50,0.12);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; background: var(--bg-parchment); }

body {
  background: var(--bg-parchment);
  color: var(--text-dark);
  font-family: var(--font-body);
  font-size: 15px; line-height: 1.72;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { text-decoration: none; color: inherit; transition: color 0.25s; }

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

.font-mono {
  font-family: var(--font-sans) !important;
  font-weight: 500; letter-spacing: 1.5px;
  text-transform: uppercase; font-size: 11px;
}

.font-typewriter {
  font-family: 'Courier New', Courier, monospace !important;
  font-size: 13.5px; line-height: 1.7; color: #3f4e5a;
}

#dna-canvas { position: fixed; inset: 0; z-index: 0; pointer-events: none; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(252,251,248,0.82);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-delicate);
  transition: background 0.4s, box-shadow 0.4s;
}

.header-container {
  max-width: var(--max-width); margin: 0 auto; padding: 14px 40px;
  display: flex; justify-content: space-between; align-items: center;
}

.brand-logo-img { height: 60px; display: block; }
.main-nav { display: flex; gap: 28px; }
.main-nav .nav-link {
  color: var(--text-muted);
  position: relative; padding-bottom: 4px;
}
.main-nav .nav-link::after {
  content: ''; position: absolute;
  bottom: 0; left: 0; width: 0; height: 1.5px;
  background: var(--accent-sage);
  transition: width 0.3s ease;
}
.main-nav .nav-link:hover { color: var(--text-dark); }
.main-nav .nav-link:hover::after { width: 100%; }

.header-cta-btn {
  display: inline-flex; align-items: center; padding: 9px 20px;
  background: var(--text-dark); color: #fff;
  font-family: var(--font-sans); font-size: 11px;
  font-weight: 500; letter-spacing: 1px; text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all 0.3s;
}
.header-cta-btn:hover { background: #374151; transform: translateY(-1px); box-shadow: var(--shadow-sm); }

/* ============================================================
   HERO
   ============================================================ */
.hero-editorial {
  position: relative; z-index: 1;
  max-width: var(--max-width); margin: 0 auto;
  padding: 150px 40px 100px;
}

.hero-inner {
  display: grid; grid-template-columns: 1.1fr 1fr;
  gap: 56px; align-items: center;
}

.hero-text-col { max-width: 540px; }
.hero-cat { color: var(--accent-sage); display: block; margin-bottom: 24px; }

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 5.5vw, 4.6rem);
  font-weight: 300; line-height: 1.08;
  color: var(--text-dark); margin-bottom: 28px;
}

.hero-title em {
  font-style: italic; font-weight: 400;
  background: linear-gradient(135deg, var(--accent-sage), #43a047, var(--accent-lavender));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

.hero-lead { font-size: 16.5px; color: var(--text-muted); line-height: 1.8; margin-bottom: 36px; }
.hero-cta-row { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.hero-patent { color: var(--text-muted); font-size: 10px; opacity: 0.5; }

/* Hero Constellation */
.hero-visual-col { display: flex; align-items: center; justify-content: center; position: relative; min-height: 480px; }
.hero-composition { position: relative; width: 340px; height: 340px; }

.hero-glow-ring { position: absolute; border-radius: 50%; border: 1px solid; pointer-events: none; }
.ring-1 { inset: -16px; border-color: rgba(46,125,50,0.18); animation: pulse-ring 4s ease-in-out infinite; }
.ring-2 { inset: -38px; border-color: rgba(79,70,229,0.08); border-style: dashed; animation: slow-spin 40s linear infinite; }
.ring-3 { inset: -60px; border-color: rgba(161,98,7,0.06); animation: pulse-ring 6s ease-in-out infinite 1.5s; }

@keyframes pulse-ring { 0%,100%{opacity:.4;transform:scale(1)}50%{opacity:1;transform:scale(1.02)} }
@keyframes slow-spin { from{transform:rotate(0)}to{transform:rotate(360deg)} }

.hero-main-circle {
  width: 100%; height: 100%; border-radius: 50%; overflow: hidden;
  position: relative; z-index: 3;
  border: 3px solid rgba(46,125,50,0.2);
  box-shadow: 0 0 80px rgba(46,125,50,0.1), 0 24px 64px rgba(0,0,0,0.12);
  animation: gentle-float 6s ease-in-out infinite;
}
.hero-main-circle img { width: 100%; height: 100%; object-fit: cover; }

@keyframes gentle-float { 0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)} }

.hero-satellite { position: absolute; z-index: 4; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.hero-satellite img {
  width: 76px; height: 76px; border-radius: 50%; object-fit: cover;
  border: 2.5px solid rgba(255,255,255,0.9);
  box-shadow: 0 6px 28px rgba(0,0,0,0.15);
  transition: transform 0.3s, box-shadow 0.3s;
}
.hero-satellite img:hover { transform: scale(1.12); box-shadow: 0 10px 36px rgba(0,0,0,0.22); }
.sat-label { font-size: 9px !important; letter-spacing: 1.5px; color: var(--text-muted); white-space: nowrap; }
.sat-connector { position: absolute; background: linear-gradient(to bottom, rgba(46,125,50,0.15), transparent); width: 1px; pointer-events: none; }

.sat-1 { top: -35px; left: -55px; animation: sat-float 5s ease-in-out infinite; }
.sat-2 { top: -25px; right: -65px; animation: sat-float 6s ease-in-out infinite 1s; }
.sat-3 { bottom: -45px; left: 50%; transform: translateX(-50%); animation: sat-float-3 5.5s ease-in-out infinite 2s; }
.sat-1 .sat-connector { height: 65px; bottom: -65px; left: 50%; }
.sat-2 .sat-connector { height: 55px; bottom: -55px; left: 50%; }
.sat-3 .sat-connector { height: 55px; top: -55px; left: 50%; }

@keyframes sat-float { 0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)} }
@keyframes sat-float-3 { 0%,100%{transform:translateX(-50%)translateY(0)}50%{transform:translateX(-50%)translateY(-12px)} }

/* ============================================================
   UNIFIED SECTION — ONE GLASS BACKGROUND
   ============================================================ */
.section-wrap {
  padding: 96px 40px;
  position: relative; z-index: 1;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-top: 1px solid var(--glass-border);
}

.section-inner { max-width: var(--max-width); margin: 0 auto; }

/* ============================================================
   DNA INTERLUDES — EDITORIAL STORIES
   ============================================================ */
.dna-interlude {
  padding: 100px 40px;
  position: relative;
  z-index: 1;
  background: transparent; /* Transparent to let helix shine through */
}

.dna-interlude-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 64px;
  align-items: center;
}

.dna-interlude-container--reverse {
  direction: ltr;
}

.dna-interlude-container--reverse .dna-interlude-visual {
  order: 2;
}
.dna-interlude-container--reverse .dna-interlude-content {
  order: 1;
}

/* Visual Frame */
.dna-interlude-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.visual-frame {
  position: relative;
  padding: 12px;
  background: var(--glass-card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  width: 100%;
  max-width: 360px;
}

.visual-frame:hover {
  transform: translateY(-4px) rotate(-0.5deg);
  box-shadow: var(--shadow-lg);
}

.visual-img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: var(--radius-md);
  filter: contrast(1.02) brightness(0.98);
}

.frame-tag {
  position: absolute;
  bottom: 24px;
  right: 24px;
  background: var(--text-dark);
  color: #fff;
  padding: 4px 10px;
  font-size: 8px !important;
  letter-spacing: 1.5px;
  border-radius: var(--radius-sm);
  opacity: 0.85;
}

/* Content Details */
.dna-interlude-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 500px;
}

.dna-interlude-label {
  color: var(--accent-sage);
  font-size: 11px !important;
  letter-spacing: 2.5px;
}

.dna-interlude-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  line-height: 1.15;
  font-weight: 400;
  color: var(--text-dark);
  letter-spacing: -0.01em;
}

.dna-interlude-desc {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.75;
}

.dna-interlude-quote {
  position: relative;
  margin-top: 12px;
  padding: 16px 20px;
  border-left: 2px solid var(--accent-sage);
  background: rgba(46, 125, 50, 0.03);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  font-size: 13px;
  line-height: 1.6;
  color: #3f4e5a;
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
.sec-number { color: var(--accent-sage); display: block; margin-bottom: 14px; }

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 400; line-height: 1.12;
  color: var(--text-dark); margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.section-desc { font-size: 15px; color: var(--text-muted); line-height: 1.8; }
.section-center-head { text-align: center; max-width: 620px; margin: 0 auto 52px; }
.section-lead { font-size: 15px; color: var(--text-muted); line-height: 1.8; }

.drop-cap::first-letter {
  font-family: var(--font-serif); font-size: 3.6em;
  float: left; line-height: 0.8;
  margin-right: 10px; margin-top: 6px;
  color: var(--accent-sage); font-weight: 600;
}

/* ============================================================
   PULL QUOTE
   ============================================================ */
.pull-quote {
  position: relative; padding: 36px 0 36px 36px;
  border-left: 3px solid var(--accent-peach);
  max-width: 720px; margin: 0 auto;
}

.pull-quote::before {
  content: '\201C'; position: absolute; top: -16px; left: -10px;
  font-family: var(--font-serif); font-size: 6rem;
  color: var(--accent-peach); opacity: 0.18; line-height: 1;
}

.pull-quote p {
  font-family: var(--font-serif); font-size: 1.5rem;
  font-style: italic; font-weight: 400;
  color: var(--text-dark); line-height: 1.55;
}

.pull-quote cite {
  display: block; font-family: var(--font-sans);
  font-size: 11px; font-style: normal;
  text-transform: uppercase; letter-spacing: 1.5px;
  color: var(--text-muted); margin-top: 16px;
}

/* ============================================================
   STATS BAR
   ============================================================ */
.stats-bar {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: rgba(0,0,0,0.04);
  border: 1px solid var(--glass-border); border-radius: var(--radius-md); overflow: hidden;
}

.stat-item {
  background: var(--glass-card-bg); backdrop-filter: blur(8px);
  padding: 36px 20px; text-align: center;
  transition: background 0.3s, transform 0.3s;
}
.stat-item:hover { background: rgba(255,255,255,0.75); transform: translateY(-2px); }

.stat-number {
  font-family: var(--font-sans); font-size: 2.4rem; font-weight: 700;
  color: var(--text-dark); display: block; margin-bottom: 8px; line-height: 1;
}

.stat-label { font-size: 10px; color: var(--text-muted); }

/* ============================================================
   JOURNEY — INSTRUMENTED TIMELINE & TECHNICAL GRID CARDS
   ============================================================ */
.journey-header { text-align: center; max-width: 620px; margin: 0 auto 64px; }

.journey-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 56px;
  align-items: start;
}

/* Vertical Timeline Instrumented Track */
.journey-track {
  position: sticky;
  top: 130px;
  display: flex;
  flex-direction: column;
}

.track-line {
  position: absolute;
  left: 20px;
  top: 24px;
  bottom: 24px;
  width: 2px;
  background: rgba(0, 0, 0, 0.05);
  border-radius: 1px;
  z-index: 0;
}

/* Calibration notches along the timeline vertical line */
.track-line::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0; left: -4px; width: 10px;
  background-image: linear-gradient(rgba(0, 0, 0, 0.1) 1px, transparent 1px);
  background-size: 10px 10px;
  pointer-events: none;
}

.track-line-fill {
  width: 100%;
  height: 0%;
  background: linear-gradient(to bottom, var(--accent-sage), rgba(46, 125, 50, 0.4));
  border-radius: 1px;
  transition: height 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.track-step {
  position: relative;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 0;
  cursor: pointer;
  z-index: 1;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  opacity: 0.35;
}

.track-step:hover {
  opacity: 0.75;
  transform: translateX(4px);
}

.track-step.active {
  opacity: 1;
}

.track-dot {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  border: 1.5px solid rgba(0, 0, 0, 0.08);
  background: rgba(252, 251, 248, 0.88);
  backdrop-filter: blur(8px);
  color: var(--text-muted);
  flex-shrink: 0;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.track-step.active .track-dot {
  background: var(--accent-sage);
  border-color: var(--accent-sage);
  color: #fff;
  box-shadow: 
    0 0 0 4px rgba(46, 125, 50, 0.15),
    0 0 20px rgba(46, 125, 50, 0.22);
  transform: scale(1.12);
}

.track-step:hover .track-dot {
  border-color: var(--accent-sage);
}

.track-label {
  font-size: 10.5px !important;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  transition: color 0.3s;
}

.track-step.active .track-label {
  color: var(--accent-sage);
  font-weight: 600;
}

/* Glass Slide Cards Layout */
.journey-slides {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
  min-height: 340px;
}

.journey-card {
  grid-area: 1 / 1 / 2 / 2;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.98);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.5s;
  pointer-events: none;
  position: relative;
  background: var(--glass-card-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.journey-card.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

/* Card inner grid */
.journey-card-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 36px;
  align-items: center;
}

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

.card-watermark {
  position: absolute;
  top: -24px;
  right: 12px;
  font-family: var(--font-serif);
  font-size: 8rem;
  font-weight: 300;
  color: var(--accent-sage);
  opacity: 0.04;
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.card-phase {
  display: inline-block;
  color: var(--accent-sage);
  margin-bottom: 16px;
  padding: 4px 12px;
  border: 1px solid rgba(46, 125, 50, 0.18);
  border-radius: 20px;
  font-size: 9.5px !important;
  letter-spacing: 1px;
}

.card-heading {
  font-family: var(--font-serif);
  font-size: 2.1rem;
  font-weight: 400;
  color: var(--text-dark);
  margin-bottom: 20px;
  line-height: 1.25;
}

.journey-card p {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.78;
  margin-bottom: 16px;
}

.journey-card p:last-child {
  margin-bottom: 0;
}

.journey-card strong {
  color: var(--text-dark);
  font-weight: 600;
}

/* Illustration Box on Right */
.journey-card-illustration {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.02);
  border: 1px dashed var(--border-delicate);
  border-radius: var(--radius-md);
  padding: 24px;
  aspect-ratio: 4 / 3;
}

.journey-svg {
  width: 100%;
  height: auto;
  display: block;
}

/* ============================================================
   SVG blue-print animations
   ============================================================ */
/* DNA spirals floating inside glass vials */
.vial-dna-helix.active {
  stroke-dasharray: 40;
  stroke-dashoffset: 40;
  animation: vial-dna-glow 3s linear infinite;
}

.vial-dna-helix.active-lavender {
  stroke-dasharray: 40;
  stroke-dashoffset: 40;
  animation: vial-dna-glow 3.5s linear infinite;
}

.vial-dna-helix.active-peach {
  stroke-dasharray: 40;
  stroke-dashoffset: 40;
  animation: vial-dna-glow 2.8s linear infinite;
}

@keyframes vial-dna-glow {
  to { stroke-dashoffset: 0; }
}

/* Downward arrows moving */
.bp-arrow-anim {
  animation: arrow-plunge 2s infinite ease-in-out;
}

@keyframes arrow-plunge {
  0%, 100% { transform: translateY(0); opacity: 0.3; }
  50% { transform: translateY(4px); opacity: 1; }
}

/* Press seal bezel moving down */
.bp-bezel-glide {
  animation: press-seal 3s infinite ease-in-out;
}

@keyframes press-seal {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(12px); }
}

/* Shrine core breathing glow */
.bp-shrine-core {
  animation: core-glow 4s ease-in-out infinite;
}

@keyframes core-glow {
  0%, 100% { fill: rgba(46, 125, 50, 0.04); stroke-opacity: 0.3; }
  50% { fill: rgba(46, 125, 50, 0.16); stroke-opacity: 0.8; }
}

/* Radar pulse expanding circles */
.radar-wave-anim {
  transform-origin: 55px 50px;
  animation: radar-ripple 2.4s linear infinite;
}

@keyframes radar-ripple {
  0% { transform: scale(0.5); opacity: 0; }
  50% { opacity: 0.8; }
  100% { transform: scale(1.3); opacity: 0; }
}

/* Cell mitosis growth lines */
.cell-growth-anim {
  stroke-dasharray: 80;
  stroke-dashoffset: 80;
  animation: growth-draw 5s linear infinite;
}

@keyframes growth-draw {
  0%, 100% { stroke-dashoffset: 80; }
  50% { stroke-dashoffset: 0; }
}

/* ============================================================
   PRODUCT SHOWCASE — TECHNICAL SPECIMEN VISUALIZER
   ============================================================ */
.showcase-header { text-align: center; max-width: 620px; margin: 0 auto 56px; }

.specimen-dashboard {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: stretch;
}

/* Left side Visualizer Stage */
.visualizer-stage {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Mode toggle controls */
.visualizer-controls {
  display: flex;
  background: rgba(0, 0, 0, 0.04);
  padding: 4px;
  border-radius: 30px;
  border: 1px solid var(--border-delicate);
  align-self: center;
  gap: 4px;
}

.viz-toggle-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 8px 18px;
  border-radius: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.viz-toggle-btn .dot {
  width: 6px;
  height: 6px;
  background: var(--text-muted);
  border-radius: 50%;
  display: inline-block;
  transition: background 0.3s;
}

.viz-toggle-btn:hover {
  color: var(--text-dark);
}

.viz-toggle-btn.active {
  background: #fff;
  color: var(--text-dark);
  box-shadow: var(--shadow-sm);
}

.viz-toggle-btn.active .dot {
  background: var(--accent-sage);
  box-shadow: 0 0 6px var(--accent-sage);
}

/* Viewport for Visualizer */
.visualizer-viewport {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--glass-card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: border-color 0.4s;
}

.visualizer-viewport:hover {
  border-color: rgba(46, 125, 50, 0.25);
}

/* Solid view wrapper */
.viewport-solid {
  position: absolute;
  /* inset: 40px; */
  opacity: 0;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  transform: scale(0.96);
  z-index: 2;
}

.viewport-solid.active {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1);
}

.product-glow {
  position: absolute;
  width: 250px;
  height: 250px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(46, 125, 50, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: product-breathe 4s ease-in-out infinite;
}

@keyframes product-breathe {
  0%, 100% { opacity: 0.4; transform: translate(-50%,-50%) scale(0.95); }
  50% { opacity: 1; transform: translate(-50%,-50%) scale(1.15); }
}

.showcase-product-img {
  width: 100%;
  max-width: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.08));
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.showcase-product-img:hover {
  transform: scale(1.03) translateY(-4px);
}

/* X-ray view wrapper */
.viewport-xray {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  transform: scale(1.04);
  z-index: 1;
}

.viewport-xray.active {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1);
}

.xray-grid-lines {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 0, 0, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.02) 1px, transparent 1px);
  background-size: 20px 20px;
  background-position: center;
  opacity: 0.7;
}

.xray-blueprint {
  width: 85%;
  height: 85%;
  z-index: 2;
}

/* SVG Blueprint Styling */
.bp-line {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke 0.3s, stroke-width 0.3s;
}

.bp-outline {
  stroke: rgba(26, 31, 36, 0.2);
  stroke-width: 1.2px;
}

.bp-mech {
  stroke: rgba(79, 70, 229, 0.3);
  stroke-width: 1px;
}

.bp-lock-ring {
  stroke: var(--accent-sage);
  stroke-width: 1.5px;
}

.bp-accent {
  fill: var(--accent-sage);
  stroke: none;
}

.bp-chamber {
  stroke: rgba(26, 31, 36, 0.15);
  stroke-width: 1px;
  fill: rgba(0, 0, 0, 0.01);
}

.bp-vial-body {
  stroke: rgba(92, 104, 115, 0.4);
  stroke-width: 1px;
  fill: rgba(255, 255, 255, 0.4);
  transition: all 0.3s;
}

.bp-vial-body.active {
  stroke: var(--accent-sage);
  stroke-width: 1.2px;
  fill: rgba(46, 125, 50, 0.08);
}

.bp-vial-cap {
  stroke: rgba(92, 104, 115, 0.5);
  stroke-width: 1.5px;
}

.bp-vial-cap.active {
  stroke: var(--accent-sage);
}

.bp-dna-spiral {
  stroke: rgba(92, 104, 115, 0.2);
  stroke-width: 0.8px;
  stroke-dasharray: 2 2;
}

.bp-dna-spiral.active {
  stroke: var(--accent-sage);
  stroke-dasharray: none;
  stroke-width: 1px;
}

.bp-dot {
  fill: rgba(161, 98, 7, 0.25);
  stroke: none;
}

.bp-base {
  stroke: rgba(26, 31, 36, 0.3);
  stroke-width: 1.5px;
  fill: rgba(0, 0, 0, 0.02);
}

/* Floating hotspots overlay */
.hotspot {
  position: absolute;
  z-index: 10;
  width: 32px;
  height: 32px;
  cursor: pointer;
  transform: translate(-50%, -50%);
  transition: opacity 0.4s;
}

.hotspot-ping {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid var(--accent-sage);
  animation: hotspot-ping 2.2s cubic-bezier(0, 0, 0.2, 1) infinite;
  pointer-events: none;
}

@keyframes hotspot-ping {
  0% { transform: scale(1); opacity: 0.8; }
  75%, 100% { transform: scale(2.4); opacity: 0; }
}

.hotspot-num {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--text-dark);
  color: #fff;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-sans);
  z-index: 2;
  box-shadow: var(--shadow-sm);
  transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
}

.hotspot:hover .hotspot-num,
.hotspot.active .hotspot-num {
  background: var(--accent-sage);
  transform: scale(1.12);
  box-shadow: 0 0 16px rgba(46, 125, 50, 0.4);
}

.hs-1 { top: 25%; left: 50%; }
.hs-2 { top: 50%; left: 30%; }
.hs-3 { top: 75%; left: 50%; }

/* Right side Spec Ledger */
.spec-ledger {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.ledger-header {
  border-bottom: 1px solid var(--border-delicate);
  padding-bottom: 16px;
}

.ledger-tag {
  color: var(--accent-sage);
  font-size: 10px !important;
  letter-spacing: 2px;
  display: block;
  margin-bottom: 8px;
}

.ledger-title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--text-dark);
}

.ledger-nav {
  display: flex;
  gap: 10px;
  border-bottom: 1px solid var(--border-delicate);
  padding-bottom: 12px;
}

.ledger-tab-btn {
  background: transparent;
  border: none;
  font-family: var(--font-body);
  font-size: 13.5px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px 12px;
  border-bottom: 2px solid transparent;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s;
}

.ledger-tab-btn .num {
  font-size: 9px !important;
  color: var(--text-muted);
  opacity: 0.6;
}

.ledger-tab-btn:hover {
  color: var(--text-dark);
}

.ledger-tab-btn.active {
  color: var(--text-dark);
  font-weight: 500;
  border-bottom-color: var(--accent-sage);
}

.ledger-tab-btn.active .num {
  color: var(--accent-sage);
  opacity: 1;
}

/* Ledger Details Panel */
.ledger-details {
  position: relative;
  min-height: 260px;
}

.ledger-card {
  display: none;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s ease, transform 0.4s ease;
  background: var(--glass-card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.ledger-card.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.spec-prop-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.spec-prop {
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--border-delicate);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

.spec-prop .label {
  display: block;
  font-size: 8px !important;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.spec-prop .val {
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-dark);
}

.detail-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.detail-desc {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 12px;
}

.detail-rationale {
  font-size: 12.5px;
  color: var(--text-muted);
  border-top: 1px dashed var(--border-delicate);
  padding-top: 12px;
  line-height: 1.6;
}

.detail-rationale strong {
  color: var(--text-dark);
  font-weight: 500;
}

/* ============================================================
   EDITORIAL GRID (legacy, for reuse)
   ============================================================ */
.editorial-grid {
  display: grid; grid-template-columns: 1fr 1.4fr;
  gap: 60px; align-items: start;
}

.grid-left-sticky { position: sticky; top: 100px; }

/* ============================================================
   BONDS — OVERLAPPING GLASS CARDS
   ============================================================ */
.editorial-cards-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }

.editorial-card-item {
  display: flex; flex-direction: column;
  position: relative;
  transition: transform 0.5s cubic-bezier(0.16,1,0.3,1);
}
.editorial-card-item:nth-child(1) { transform: rotate(-1.2deg); z-index: 2; }
.editorial-card-item:nth-child(2) { transform: rotate(0.8deg) translateY(20px); z-index: 1; }
.editorial-card-item:hover { transform: rotate(0deg) translateY(-6px) !important; z-index: 10; }

.card-img-wrap {
  border: 1px solid var(--glass-border); padding: 8px;
  background: var(--glass-card-bg); backdrop-filter: blur(8px);
  margin-bottom: 20px; border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: box-shadow 0.4s, transform 0.4s;
}
.editorial-card-item:hover .card-img-wrap { box-shadow: var(--shadow-lg); }

.card-pic { width: 100%; border-radius: var(--radius-sm); }
.card-meta { color: var(--accent-sage); margin-bottom: 8px; }

.card-title {
  font-family: var(--font-serif); font-size: 1.7rem;
  font-weight: 400; margin-bottom: 10px; color: var(--text-dark);
  letter-spacing: -0.01em;
}

.card-body { font-size: 14px; color: var(--text-muted); line-height: 1.72; }

/* ============================================================
   CHRONOMETER
   ============================================================ */
.projection-header-ed { margin-bottom: 40px; }
.slider-box-full { width: 100%; margin-bottom: 48px; }
.slider-title { display: block; margin-bottom: 16px; color: var(--text-dark); }

.editorial-slider-full {
  -webkit-appearance: none; width: 100%; height: 3px;
  background: rgba(0,0,0,0.08); outline: none; border-radius: 2px;
}
.editorial-slider-full::-webkit-slider-thumb {
  -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%;
  background: var(--accent-sage); cursor: pointer;
  box-shadow: 0 0 12px rgba(46,125,50,0.25);
  transition: transform 0.2s, box-shadow 0.2s;
}
.editorial-slider-full::-webkit-slider-thumb:hover {
  transform: scale(1.25);
  box-shadow: 0 0 24px rgba(46,125,50,0.45);
}

.slider-marks {
  display: flex; justify-content: space-between;
  margin-top: 14px; font-size: 10px; color: var(--text-muted);
}

.projection-details-bottom {
  display: grid; grid-template-columns: 1.2fr 0.8fr;
  gap: 40px; align-items: start;
}

.editorial-calc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }

.calc-grid-col {
  background: var(--glass-card-bg); backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  padding: 24px; border-radius: var(--radius-md);
  display: flex; flex-direction: column;
  transition: box-shadow 0.3s, transform 0.3s;
}
.calc-grid-col:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

.calc-grid-col .label { font-size: 10px; color: var(--text-muted); text-transform: uppercase; margin-bottom: 6px; letter-spacing: 0.5px; }
.calc-grid-col .val { font-family: var(--font-sans); font-size: 1.55rem; font-weight: 700; color: var(--text-dark); }
.text-mint { color: var(--accent-sage) !important; }

.philosophy-sheet-full {
  background: var(--glass-card-bg); backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  padding: 28px; border-radius: var(--radius-md);
}

.philosophy-sheet-full h4 { font-family: var(--font-serif); font-size: 18px; font-weight: 500; margin-bottom: 12px; }
.philosophy-sheet-full p { color: var(--text-muted); margin-bottom: 10px; font-size: 13.5px; }
.lottery-quote { font-style: italic; color: var(--text-dark) !important; font-weight: 500; }

/* ============================================================
   FEEDBACK LOGS
   ============================================================ */
.logs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.log-block {
  background: var(--glass-card-bg); backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-left: 3px solid var(--accent-lavender);
  padding: 28px; border-radius: 0 var(--radius-md) var(--radius-md) 0;
  position: relative;
  transition: box-shadow 0.4s, transform 0.4s;
}
.log-block:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }

.log-block::before {
  content: '\201C'; font-family: var(--font-serif); font-size: 4rem;
  color: var(--accent-lavender); opacity: 0.1;
  position: absolute; top: 2px; left: 12px; line-height: 1;
}

.log-block .log-index { color: var(--accent-lavender); display: block; margin-bottom: 12px; }
.log-block p { font-style: italic; color: var(--text-muted); line-height: 1.72; }

/* ============================================================
   FAQ ACCORDION SECTION
   ============================================================ */
.faq-accordion {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--glass-card-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-item[open] {
  box-shadow: var(--shadow-sm);
  border-color: rgba(46, 125, 50, 0.25);
  background: rgba(255, 255, 255, 0.65);
}

.faq-question {
  padding: 22px 28px;
  font-family: var(--font-serif);
  font-size: 1.22rem;
  font-weight: 500;
  color: var(--text-dark);
  cursor: pointer;
  list-style: none; /* Hide default arrow */
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  outline: none;
}

/* Custom indicator icon */
.faq-question::after {
  content: '+';
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 300;
  color: var(--accent-sage);
  transition: transform 0.3s ease;
}

.faq-item[open] .faq-question::after {
  transform: rotate(45deg);
}

.faq-question::-webkit-details-marker {
  display: none; /* Webkit browser compatibility */
}

.faq-answer {
  padding: 0 28px 24px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.72;
}

.faq-answer p {
  margin-bottom: 12px;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-answer ul {
  padding-left: 20px;
  margin-top: 8px;
}

.faq-answer li {
  margin-bottom: 6px;
}

/* ============================================================
   CONTACT & REQUEST FORM
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 60px;
  align-items: start;
}

.contact-info-col {
  max-width: 440px;
}

.contact-info-col p {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.78;
  margin-bottom: 24px;
}

.contact-patent-tag {
  display: inline-block;
  font-size: 9px !important;
  color: var(--accent-sage);
  border: 1px solid rgba(46, 125, 50, 0.2);
  padding: 4px 10px;
  border-radius: 12px;
}

/* Form Container */
.contact-form-card {
  background: var(--glass-card-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  box-shadow: var(--shadow-md);
}

.form-group-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.form-group.last {
  margin-bottom: 32px;
}

.form-label {
  font-family: var(--font-sans);
  font-size: 9.5px !important;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-dark);
  font-weight: 500;
}

.form-input,
.form-select,
.form-textarea {
  background: transparent;
  border: none;
  border-bottom: 1.5px solid var(--border-delicate);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-dark);
  padding: 8px 0;
  outline: none;
  border-radius: 0;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.form-select {
  cursor: pointer;
  color: var(--text-muted);
}

.form-select option {
  background: #fcfbf8;
  color: var(--text-dark);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-bottom-color: var(--accent-sage);
  box-shadow: 0 4px 12px -6px rgba(46,125,50,0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

/* Common Primary Button */
.btn-primary-ed {
  border: 2px solid var(--text-dark); padding: 14px 32px;
  color: var(--text-dark); display: inline-block;
  font-size: 12px; letter-spacing: 1.5px;
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  font-family: var(--font-sans);
  text-transform: uppercase;
  transition: all 0.35s cubic-bezier(0.16,1,0.3,1);
}
.btn-primary-ed:hover {
  background: var(--text-dark); color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.15);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { padding-bottom: 40px; position: relative; z-index: 1; }
.footer-divider { max-width: var(--max-width); margin: 56px auto; height: 1px; background: var(--border-delicate); }

.footer-container {
  max-width: var(--max-width); margin: 0 auto; padding: 0 40px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
}

.footer-logo { height: 60px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--text-muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--text-dark); }
.footer-copy { width: 100%; text-align: center; color: var(--text-muted); font-size: 10px; margin-top: 16px; }

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.scroll-reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1), transform 0.8s cubic-bezier(0.16,1,0.3,1);
}
.scroll-reveal.active { opacity: 1; transform: translateY(0); }

.scroll-reveal .stagger-child { opacity: 0; transform: translateY(18px); transition: opacity 0.55s ease, transform 0.55s ease; }
.scroll-reveal.active .stagger-child:nth-child(1) { opacity: 1; transform: translateY(0); transition-delay: 0.08s; }
.scroll-reveal.active .stagger-child:nth-child(2) { opacity: 1; transform: translateY(0); transition-delay: 0.18s; }
.scroll-reveal.active .stagger-child:nth-child(3) { opacity: 1; transform: translateY(0); transition-delay: 0.28s; }
.scroll-reveal.active .stagger-child:nth-child(4) { opacity: 1; transform: translateY(0); transition-delay: 0.38s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-text-col { max-width: 100%; }
  .hero-visual-col { min-height: 380px; }
  .hero-composition { width: 280px; height: 280px; }
  .journey-layout { grid-template-columns: 1fr; gap: 36px; }
  .journey-track { position: static; flex-direction: row; flex-wrap: wrap; gap: 8px; }
  .track-line { display: none; }
  .track-step { padding: 8px; }
  
  /* Journey Responsive */
  .journey-card-grid { grid-template-columns: 1fr; gap: 32px; }
  .journey-card-illustration { aspect-ratio: 16 / 9; max-height: 180px; }
  
  /* DNA Interludes responsive */
  .dna-interlude-container { grid-template-columns: 1fr; gap: 40px; }
  .dna-interlude-container--reverse .dna-interlude-visual { order: 0; }
  .dna-interlude-container--reverse .dna-interlude-content { order: 0; }
  .visual-frame { max-width: 100%; }
  
  /* Specimen Dashboard responsive */
  .specimen-dashboard { grid-template-columns: 1fr; gap: 40px; }
  .visualizer-viewport { aspect-ratio: 1.1 / 1; }
  
  /* Contact Responsive */
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  
  .editorial-grid { grid-template-columns: 1fr; gap: 36px; }
  .grid-left-sticky { position: static; }
  .editorial-cards-grid { grid-template-columns: 1fr; gap: 36px; }
  .editorial-card-item:nth-child(1), .editorial-card-item:nth-child(2) { transform: none; }
  .logs-grid { grid-template-columns: 1fr; gap: 20px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .projection-details-bottom { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 700px) {
  .header-container { padding: 14px 20px; }
  .main-nav { display: none; }
  .section-wrap { padding: 64px 20px; }
  .hero-editorial { padding: 120px 20px 60px; }
  .dna-interlude { padding: 60px 20px; }
  .hero-composition { width: 240px; height: 240px; }
  .hero-satellite img { width: 56px; height: 56px; }
  .sat-1 { left: -20px; } .sat-2 { right: -20px; }
  .journey-card { padding: 28px 24px 24px; }
  .journey-card-illustration { aspect-ratio: 16 / 9; max-height: 140px; padding: 16px; }
  .card-watermark { font-size: 5rem; }
  .footer-container { flex-direction: column; align-items: center; text-align: center; padding: 0 20px; }
  .stats-bar { grid-template-columns: 1fr 1fr; }
  .editorial-calc-grid { grid-template-columns: 1fr; }
  .visualizer-viewport { padding: 20px; aspect-ratio: 1 / 1; }
  .spec-prop-row { grid-template-columns: 1fr; gap: 8px; }
  .ledger-details { min-height: 380px; }
  
  /* Form field columns stacking */
  .form-group-row { grid-template-columns: 1fr; gap: 0; }
  .contact-form-card { padding: 32px 24px; }
}