/* ═══════════════════════════════════════════
   Twin Matrix — Official Website
   Theme: Green-Cream + Hex-Digital Matrix
   Computational / Data-Stream Aesthetic
   ═══════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=JetBrains+Mono:wght@400;500&family=Inter:wght@300;400;500;600;700&display=swap');

html { font-size: 120%; }

:root {
  --cream: #fafaf5;
  --cream-dark: #f0efe8;
  --green-deep: #2d4a35;
  --green-forest: #4a7c59;
  --green-sage: #8dae9a;
  --green-light: #c5d9cb;
  --green-glow: #6fdb8f;
  --green-neon: #00ff88;
  --text-primary: #1a1a1a;
  --text-secondary: #4a4a4a;
  --text-muted: #7a7a7a;
  --terminal-bg: #0a120c;
  --terminal-green: #6fdb8f;
  --terminal-dim: #3a6b45;
  --font-serif: 'EB Garamond', Georgia, serif;
  --font-sans: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  font-family: var(--font-serif);
  background: var(--cream);
  color: var(--text-primary);
  line-height: 1.75;
  overflow-x: hidden;
}

/* ── Hex Matrix Background (computational atmosphere) ── */
#hex-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
}

/* ── Navigation ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  width: 100%; max-width: 100vw;
  padding: 1rem 2.5rem;
  display: flex; justify-content: space-between; align-items: center;
  background: rgba(250, 250, 245, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--green-light);
  transition: transform 0.3s ease;
  overflow: hidden;
}
.nav-logo {
  display: flex; align-items: center;
  font-family: var(--font-mono);
  font-size: 0.85rem; font-weight: 500;
  color: var(--green-deep);
  text-decoration: none; letter-spacing: 0.15em;
}
.nav-links { display: flex; gap: 2rem; list-style: none; align-items: center; }
.nav-links a {
  font-family: var(--font-mono); font-size: 0.68rem;
  color: var(--text-muted); text-decoration: none;
  transition: color 0.3s; letter-spacing: 0.06em; font-weight: 400;
}
.nav-links a:hover { color: var(--green-forest); }
.nav-links .nav-cta {
  background: var(--green-deep); color: var(--cream) !important;
  padding: 0.5rem 1.2rem; border-radius: 6px; font-weight: 500;
  transition: transform 0.2s, box-shadow 0.2s;
}
.nav-links .nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(45, 74, 53, 0.25);
}
.nav-social { display: flex; gap: 0.75rem; align-items: center; margin-left: 1rem; }
.nav-social a {
  display: flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 6px;
  color: var(--text-muted); transition: all 0.2s;
}
.nav-social a:hover { color: var(--green-forest); background: rgba(74, 124, 89, 0.06); }
.nav-social svg { width: 16px; height: 16px; }
/* Element Market logo: white SVG needs inversion in light mode */
.nav-element-logo img {
  filter: invert(1);
  opacity: 0.55;
  transition: opacity 0.3s;
}
.nav-element-logo:hover img { opacity: 0.9; }
body.dark .nav-element-logo img { filter: none; opacity: 0.7; }
body.dark .nav-element-logo:hover img { opacity: 1; }

/* ── Page ── */
.page-wrapper { position: relative; z-index: 1; }

/* ── Hero ── */
.hero {
  position: relative;
  overflow: clip;
  min-height: 100vh;
  display: flex; flex-direction: column;
  justify-content: center; align-items: center; text-align: center;
  padding: 7rem 2rem 4rem;
}
.hero-eyebrow {
  font-family: var(--font-mono); font-size: 0.62rem;
  letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--green-forest); margin-bottom: 1.5rem;
  opacity: 0; transform: translateY(20px);
  animation: fadeUp 0.8s ease 0.3s forwards;
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 700; line-height: 1.08;
  color: var(--green-deep); margin-bottom: 1.5rem;
  opacity: 0; transform: translateY(30px);
  animation: fadeUp 1s ease 0.5s forwards;
}
.hero-subtitle {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2.2vw, 1.4rem);
  font-style: italic; color: var(--text-secondary);
  max-width: 560px; margin-bottom: 2.5rem;
  opacity: 0; transform: translateY(20px);
  animation: fadeUp 0.8s ease 0.8s forwards;
}
.hero-stats {
  display: flex; gap: 3rem; flex-wrap: wrap; justify-content: center;
  margin-bottom: 2rem;
  opacity: 0; animation: fadeUp 0.6s ease 1.1s forwards;
}
.hero-stat { text-align: center; }
.hero-stat .stat-value {
  font-family: var(--font-mono);
  font-size: 1.5rem; font-weight: 500; color: var(--green-deep);
  letter-spacing: 0.05em;
}
.hero-stat .stat-label {
  font-family: var(--font-mono); font-size: 0.55rem;
  color: var(--text-muted); letter-spacing: 0.12em; text-transform: uppercase;
}
.hero-scroll {
  position: absolute; bottom: 2.5rem; left: 0; right: 0;
  width: 100%;
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  opacity: 0; animation: fadeUp 0.6s ease 1.4s forwards;
}
.hero-scroll span {
  font-family: var(--font-mono); font-size: 0.55rem;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--text-muted);
}
.scroll-arrow {
  width: 16px; height: 16px;
  border-right: 1.5px solid var(--green-sage);
  border-bottom: 1.5px solid var(--green-sage);
  transform: rotate(45deg);
  animation: bounceArrow 2s ease infinite;
}
@keyframes bounceArrow {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(6px); }
}

/* ── Narrative Sections (Split 50/50) ── */
.narrative-section {
  position: relative; min-height: 100vh;
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
}
.narrative-section.reverse { direction: rtl; }
.narrative-section.reverse > * { direction: ltr; }

/* ── Stage Header ── */
.stage-header {
  padding: 6rem 2rem 3rem; text-align: center;
}
.stage-number {
  font-family: var(--font-mono); font-size: 0.6rem;
  letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--green-sage); margin-bottom: 0.5rem;
}
.stage-title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 4.5vw, 3.5rem);
  font-weight: 700; color: var(--green-deep);
  line-height: 1.12; margin-bottom: 1rem;
}
.stage-lead {
  font-family: var(--font-serif);
  font-size: 1.1rem; font-style: italic;
  color: var(--text-secondary); max-width: 600px;
  margin: 0 auto;
}

/* ── Text Panel ── */
.text-panel {
  padding: 6rem 4rem 5rem 5rem;
  display: flex; flex-direction: column; justify-content: center;
}
.section-number {
  font-family: var(--font-mono); font-size: 0.58rem;
  letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--green-sage); margin-bottom: 0.8rem;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700; color: var(--green-deep);
  margin-bottom: 1.2rem; line-height: 1.15;
}
.section-lead {
  font-family: var(--font-serif);
  font-size: 1.05rem; font-style: italic;
  color: var(--green-forest); margin-bottom: 1.8rem;
  padding-left: 1.3rem; border-left: 2px solid var(--green-sage);
}
.section-body { font-size: 0.92rem; color: var(--text-secondary); max-width: 520px; }
.section-body p { margin-bottom: 1rem; }
.section-body strong { color: var(--text-primary); font-weight: 600; }

/* ── Visual Panel (Sticky) ── */
.visual-panel {
  position: sticky; top: 0; height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 2rem; overflow: hidden;
}

/* ── Vitruvian Matrix Visual ── */
.vitruvian-matrix {
  opacity: 0; transform: scale(0.92);
  transition: all 1s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.vitruvian-matrix.visible { opacity: 1; transform: scale(1); }
.vitruvian-matrix svg { max-width: 100%; height: auto; }

/* Vitruvian figure Y-axis spin */
.vitruvian-figure {
  transform-origin: 200px 220px;
  animation: vitruvianSpin 8s ease-in-out infinite;
}
@keyframes vitruvianSpin {
  0%   { transform: scaleX(1); }
  25%  { transform: scaleX(0.15); }
  50%  { transform: scaleX(-1); }
  75%  { transform: scaleX(0.15); }
  100% { transform: scaleX(1); }
}

/* ── 256D Grid ── */
.dim-grid {
  width: 100%; height: 100%;
  display: grid;
  grid-template-columns: repeat(16, 1fr);
  grid-template-rows: repeat(16, 1fr);
  gap: 1px;
  border-radius: 8px;
  overflow: hidden;
}
.dim-cell {
  background: rgba(45, 74, 53, 0.08);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 7.5px; color: rgba(74, 124, 89, 0.5);
  transition: all 0.3s;
  position: relative; overflow: hidden;
}
.dim-cell.active {
  background: rgba(45, 74, 53, 0.18);
  color: var(--green-forest);
}
.dim-grid-wrapper {
  position: relative; width: 510px; height: 510px;
  opacity: 0; transform: scale(0.92);
  transition: all 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.dim-grid-wrapper.visible { opacity: 1; transform: scale(1); }
.dim-grid-wrapper .quadrant-overlay {
  position: absolute; inset: 0;
  display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr;
  pointer-events: none; z-index: 2;
}
.quadrant-label-cell {
  position: relative;
  display: grid; place-items: center;
  pointer-events: all;
  cursor: default;
}
.quadrant-label-cell span {
  font-family: var(--font-mono); font-size: 9px;
  font-weight: 700; color: var(--green-deep);
  letter-spacing: 0.12em; text-transform: uppercase;
  text-shadow: 0 0 8px rgba(250, 250, 245, 0.9), 0 0 16px rgba(250, 250, 245, 0.7);
}
body.dark .quadrant-label-cell span {
  text-shadow: 0 0 8px rgba(12, 26, 16, 0.9), 0 0 16px rgba(12, 26, 16, 0.7);
}
.quadrant-tip {
  position: absolute;
  top: calc(50% + 14px);
  left: 50%; transform: translateX(-50%);
  width: 180px;
  padding: 0.5rem 0.6rem;
  background: rgba(250, 250, 245, 0.95);
  backdrop-filter: blur(6px);
  border: 1px solid var(--green-light);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 0.52rem; font-weight: 400;
  color: var(--text-body);
  line-height: 1.5;
  letter-spacing: 0.01em;
  text-transform: none;
  text-shadow: none;
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s ease;
  z-index: 10;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}
body.dark .quadrant-tip {
  background: rgba(12, 26, 16, 0.95);
  border-color: var(--gold-warm);
  color: var(--gold-secondary);
}
.quadrant-label-cell:hover .quadrant-tip { opacity: 1; }

/* ── Soul Injection Flow (NO background blocks) ── */
.injection-flow {
  display: flex; flex-direction: column; align-items: center; gap: 0;
  opacity: 0; transform: translateY(20px);
  transition: all 0.8s ease;
}
.injection-flow.visible { opacity: 1; transform: translateY(0); }

.flow-node {
  width: 260px; padding: 1.5rem 1rem;
  text-align: center;
  opacity: 0; transform: scale(0.9);
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  /* NO background, NO border — transparent */
}
.flow-node.visible { opacity: 1; transform: scale(1); }
.flow-node svg { margin-bottom: 0.6rem; }
.flow-node h4 {
  font-family: var(--font-serif); font-size: 1.15rem;
  font-weight: 700; margin-bottom: 0.3rem;
  color: var(--green-deep);
}
.flow-node p {
  font-family: var(--font-mono); font-size: 0.58rem;
  color: var(--text-muted); letter-spacing: 0.06em;
}

/* Just different text colors per node type */
.flow-node.soul-node h4 { color: var(--green-deep); }
.flow-node.agent-node h4 { color: var(--green-forest); }
.flow-node.result-node h4 { color: var(--green-deep); }

/* ── Data Stream Arrows (hex values flowing) ── */
.flow-arrow {
  width: 2px; height: 48px; position: relative;
  opacity: 0; transition: opacity 0.5s ease 0.3s;
}
.flow-arrow.visible { opacity: 1; }
.flow-arrow::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 2px; height: 100%;
  background: linear-gradient(to bottom, transparent, var(--green-sage), transparent);
}
.flow-arrow::after {
  content: ''; position: absolute; bottom: -4px; left: -3px;
  width: 0; height: 0;
  border-left: 4px solid transparent; border-right: 4px solid transparent;
  border-top: 6px solid var(--green-sage);
}
/* Hex data particles streaming down */
.flow-arrow .particle {
  position: absolute; left: -6px; top: 0;
  font-family: var(--font-mono); font-size: 7px;
  color: var(--green-glow); font-weight: 500;
  animation: dataStream 1.8s ease-in-out infinite;
}
.flow-arrow .particle::before {
  content: 'FF';
  text-shadow: 0 0 6px rgba(111, 219, 143, 0.6);
}
.flow-arrow .particle2 {
  position: absolute; left: 4px; top: 0;
  font-family: var(--font-mono); font-size: 6px;
  color: var(--green-sage); font-weight: 400;
  animation: dataStream 1.8s ease-in-out 0.6s infinite;
}
.flow-arrow .particle2::before {
  content: 'A3';
}
.flow-arrow .particle3 {
  position: absolute; left: -2px; top: 0;
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--green-glow);
  box-shadow: 0 0 6px var(--green-glow);
  animation: dataStream 1.8s ease-in-out 1.2s infinite;
}
@keyframes dataStream {
  0% { top: -6px; opacity: 0; }
  15% { opacity: 1; }
  85% { opacity: 0.8; }
  100% { top: 100%; opacity: 0; }
}
/* ── Mini SBT Matrix (flow icon) ── */
.mini-matrix {
  width: 120px; height: 120px;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  gap: 1px;
  border-radius: 6px;
  overflow: hidden;
  margin: 0 auto 0.6rem;
  background: var(--bg-cream, #f5f3ee);
  border: 2px solid rgba(74, 124, 89, 0.35);
  box-shadow: 0 2px 16px rgba(74, 124, 89, 0.2);
  animation: miniPulse 3s ease-in-out infinite;
}
.mini-matrix .mc {
  background: rgba(45, 74, 53, 0.1);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 6.5px; color: rgba(74, 124, 89, 0.55);
  line-height: 1;
}
.mini-matrix .mc.a {
  background: rgba(45, 74, 53, 0.25);
  color: var(--green-forest);
  font-weight: 700;
}
@keyframes miniPulse {
  0%, 100% { box-shadow: 0 0 12px rgba(74, 124, 89, 0.15); }
  50% { box-shadow: 0 0 20px rgba(74, 124, 89, 0.35); }
}

/* ── Terminal ── */
.terminal-box {
  width: 400px; max-width: 92%;
  background: var(--terminal-bg);
  border-radius: 8px; overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  border: 1px solid rgba(111, 219, 143, 0.08);
}
.terminal-header {
  display: flex; align-items: center; gap: 6px;
  padding: 0.6rem 0.8rem;
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid rgba(111, 219, 143, 0.06);
}
.terminal-dot { width: 8px; height: 8px; border-radius: 50%; }
.terminal-dot.r { background: #ff5f57; }
.terminal-dot.y { background: #febc2e; }
.terminal-dot.g { background: #28c840; }
.terminal-title {
  font-family: var(--font-mono); font-size: 0.55rem;
  color: var(--terminal-dim); margin-left: 0.5rem;
  letter-spacing: 0.1em; text-transform: uppercase;
}
.terminal-body {
  padding: 0.8rem 1rem;
  font-family: var(--font-mono); font-size: 0.65rem;
  line-height: 1.85; color: var(--terminal-green);
  min-height: 240px;
}
.terminal-line {
  opacity: 0; transform: translateX(-8px);
  transition: all 0.35s ease;
}
.terminal-line.visible { opacity: 1; transform: translateX(0); }
.terminal-line .dim { color: var(--terminal-dim); }
.terminal-line .bright { color: #a5f5b8; font-weight: 500; }
.terminal-line .accent { color: #f0c674; }
.terminal-line .comment { color: #5a8a65; font-style: italic; }
.cursor-blink {
  display: inline-block; width: 6px; height: 12px;
  background: var(--terminal-green);
  animation: blink 1s step-end infinite;
  vertical-align: middle; margin-left: 2px;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ── Network Canvas ── */
.network-container {
  position: relative;
  width: 620px; height: 620px;
}
.network-canvas {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  cursor: default;
}

/* Lightweight canvas tooltip */
.network-tooltip {
  position: absolute;
  width: 200px;
  padding: 0.6rem 0.8rem;
  background: rgba(250, 250, 245, 0.95);
  backdrop-filter: blur(8px);
  border: 1px solid var(--green-light);
  border-radius: 6px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  transform: translate(-50%, -100%);
  z-index: 100;
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}
body.dark .network-tooltip {
  background: rgba(12, 26, 16, 0.95);
  border-color: var(--gold-warm);
  box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}
.network-tooltip.visible { opacity: 1; }
.network-tooltip strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--green-deep);
  margin-bottom: 0.2rem;
}
body.dark .network-tooltip strong { color: var(--gold-warm); }
.network-tooltip p {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--text-body);
  line-height: 1.45;
  margin: 0;
}
body.dark .network-tooltip p { color: var(--gold-secondary); }

/* ── Agent Nodes Overlay ── */
.agent-nodes-overlay {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}
.agent-node-html {
  position: absolute;
  display: flex; flex-direction: column; align-items: center;
  gap: 0.25rem;
  pointer-events: all;
  cursor: default;
  transition: transform 0.3s ease;
}
.agent-node-html:hover { transform: scale(1.12); }
.agent-node-html .agent-icon {
  width: 48px; height: 48px;
  border-radius: 50%;
  border: 1.5px solid var(--green-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  background: rgba(250, 250, 245, 0.85);
  backdrop-filter: blur(4px);
  transition: border-color 0.3s, box-shadow 0.3s;
}
body.dark .agent-node-html .agent-icon {
  background: rgba(12, 26, 16, 0.85);
  border-color: var(--gold-warm);
}
.agent-node-html:hover .agent-icon {
  border-color: var(--green-forest);
  box-shadow: 0 0 16px rgba(111, 219, 143, 0.3);
}
body.dark .agent-node-html:hover .agent-icon {
  border-color: var(--gold-warm);
  box-shadow: 0 0 16px rgba(212, 200, 154, 0.3);
}
.agent-node-html .agent-label {
  font-family: var(--font-mono);
  font-size: 0.58rem; font-weight: 600;
  color: var(--green-deep);
  text-align: center;
  letter-spacing: 0.06em;
  line-height: 1.2;
  text-transform: uppercase;
}
body.dark .agent-node-html .agent-label { color: var(--gold-warm); }

/* Center node */
.agent-node-html.center-node {
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.agent-node-html.center-node .agent-icon {
  width: 72px; height: 72px;
  border-width: 2px;
  font-size: 28px;
  background: rgba(250, 250, 245, 0.95);
}
body.dark .agent-node-html.center-node .agent-icon {
  background: rgba(12, 26, 16, 0.95);
}
.agent-node-html.center-node .agent-label {
  font-size: 0.52rem; font-weight: 700;
}

/* Octagonal positions */
.agent-node-html[data-pos="top"]          { top: 2%;   left: 50%;  transform: translateX(-50%); }
.agent-node-html[data-pos="top-right"]    { top: 12%;  right: 4%;  }
.agent-node-html[data-pos="right"]        { top: 50%;  right: 0;   transform: translateY(-50%); }
.agent-node-html[data-pos="bottom-right"] { bottom: 12%; right: 4%; }
.agent-node-html[data-pos="bottom"]       { bottom: 2%;  left: 50%;  transform: translateX(-50%); }
.agent-node-html[data-pos="bottom-left"]  { bottom: 12%; left: 4%;  }
.agent-node-html[data-pos="left"]         { top: 50%;  left: 0;    transform: translateY(-50%); }
.agent-node-html[data-pos="top-left"]     { top: 12%;  left: 4%;   }

/* Hover scale overrides for positioned nodes */
.agent-node-html[data-pos="top"]:hover          { transform: translateX(-50%) scale(1.12); }
.agent-node-html[data-pos="right"]:hover        { transform: translateY(-50%) scale(1.12); }
.agent-node-html[data-pos="bottom"]:hover       { transform: translateX(-50%) scale(1.12); }
.agent-node-html[data-pos="left"]:hover         { transform: translateY(-50%) scale(1.12); }

/* Tooltips */
.agent-tooltip {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%; transform: translateX(-50%);
  width: 220px;
  padding: 0.8rem 1rem;
  background: rgba(250, 250, 245, 0.96);
  backdrop-filter: blur(8px);
  border: 1px solid var(--green-light);
  border-radius: 8px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  transform: translateX(-50%) translateY(4px);
  z-index: 100;
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}
body.dark .agent-tooltip {
  background: rgba(12, 26, 16, 0.96);
  border-color: var(--gold-warm);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}
.agent-node-html:hover .agent-tooltip {
  opacity: 1; pointer-events: all;
  transform: translateX(-50%) translateY(0);
}
.agent-tooltip strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 0.75rem;
  color: var(--green-deep);
  margin-bottom: 0.3rem;
}
body.dark .agent-tooltip strong { color: var(--gold-warm); }
.agent-tooltip p {
  font-family: var(--font-body);
  font-size: 0.62rem;
  color: var(--text-body);
  line-height: 1.5;
  margin: 0 0 0.4rem;
}
body.dark .agent-tooltip p { color: var(--gold-secondary); }
.agent-tooltip em {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--green-forest);
  letter-spacing: 0.04em;
}
body.dark .agent-tooltip em { color: var(--gold-warm); }
/* Tooltip position adjustments for edge nodes */
.agent-node-html[data-pos="top"] .agent-tooltip,
.agent-node-html[data-pos="top-left"] .agent-tooltip,
.agent-node-html[data-pos="top-right"] .agent-tooltip {
  top: calc(100% + 8px); bottom: auto;
}
.agent-node-html[data-pos="bottom"] .agent-tooltip,
.agent-node-html[data-pos="bottom-left"] .agent-tooltip,
.agent-node-html[data-pos="bottom-right"] .agent-tooltip {
  top: auto; bottom: calc(100% + 8px);
  transform: translateX(-50%) translateY(-4px);
}
.agent-node-html[data-pos="bottom"]:hover .agent-tooltip,
.agent-node-html[data-pos="bottom-left"]:hover .agent-tooltip,
.agent-node-html[data-pos="bottom-right"]:hover .agent-tooltip {
  transform: translateX(-50%) translateY(0);
}

/* ── Economy Cards (minimal, no heavy backgrounds) ── */
.economy-cards { display: flex; flex-direction: column; gap: 10px; width: 340px; }
.economy-card {
  display: flex; gap: 1rem; padding: 0.8rem 1rem;
  border-left: 2px solid var(--green-sage);
  opacity: 0; transform: translateX(30px);
  transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.economy-card.visible { opacity: 1; transform: translateX(0); }
.economy-card .eco-icon { flex-shrink: 0; color: var(--green-forest); }
.economy-card .eco-icon svg { width: 24px; height: 24px; }
.economy-card h4 {
  font-family: var(--font-serif); font-size: 0.88rem; font-weight: 600;
  color: var(--green-deep);
}
.economy-card p {
  font-family: var(--font-mono); font-size: 0.52rem;
  color: var(--text-muted); margin-top: 0.1rem; line-height: 1.5;
}

/* ── CTA ── */
.cta-section {
  min-height: 65vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center; padding: 5rem 2rem;
}
.cta-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700; color: var(--green-deep); margin-bottom: 0.8rem;
}
.cta-subtitle {
  font-family: var(--font-serif);
  font-size: 1rem; font-style: italic;
  color: var(--text-secondary); max-width: 460px; margin-bottom: 2rem;
}
.cta-button {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.9rem 2.2rem;
  background: var(--green-deep);
  color: var(--cream); font-family: var(--font-mono);
  font-size: 0.78rem; font-weight: 500;
  border: none; border-radius: 6px;
  cursor: pointer; text-decoration: none;
  letter-spacing: 0.06em;
  transition: all 0.3s ease;
  box-shadow: 0 2px 12px rgba(45, 74, 53, 0.2);
}
.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(45, 74, 53, 0.3);
}
.cta-links {
  margin-top: 1.5rem; display: flex; gap: 1.5rem; flex-wrap: wrap; justify-content: center;
}
.cta-links a {
  display: flex; align-items: center; gap: 0.35rem;
  font-family: var(--font-mono); font-size: 0.62rem;
  color: var(--text-muted); text-decoration: none;
  letter-spacing: 0.06em; transition: color 0.3s;
}
.cta-links a svg { width: 14px; height: 14px; }
.cta-links a:hover { color: var(--green-forest); }

/* ── Footer ── */
.footer {
  padding: 2.5rem 2rem; text-align: center;
  font-family: var(--font-mono); font-size: 0.85rem;
  color: var(--text-secondary); letter-spacing: 0.04em;
  border-top: 1px solid rgba(197, 217, 203, 0.4);
  line-height: 2.2;
}

/* ── Scroll Animations ── */
.fade-in {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .narrative-section { grid-template-columns: 1fr; }
  .narrative-section.reverse { direction: ltr; }
  .text-panel { padding: 5rem 2rem 2rem; }
  .visual-panel { position: relative; height: auto; min-height: 50vh; padding: 2rem; }
  .nav-links a:not(.nav-cta) { display: none; }
  .nav-social { margin-left: 0.5rem; gap: 0.4rem; }
  .nav-social a { width: 26px; height: 26px; }
  .nav-social svg { width: 14px; height: 14px; }
  .nav { padding: 0.8rem 1rem; }
  .theme-toggle { width: 26px; height: 26px; margin-left: 0.3rem; }
  .theme-toggle svg { width: 12px; height: 12px; }
  .nav-element-logo img { width: 16px; height: 16px; }
}
@media (max-width: 600px) {
  .hero-title { font-size: 2.4rem; }
  .text-panel { padding: 4rem 1.5rem 2rem; }
  .dim-grid-wrapper, .dim-grid { width: 420px; height: 420px; }
  .terminal-box { width: 95%; }
  .hero-stats { gap: 1.5rem; }
  .vitruvian-matrix svg { width: 300px; }
}

/* ── Theme Toggle ── */
.theme-toggle {
  display: flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 6px;
  background: none; border: 1px solid var(--green-light);
  color: var(--text-muted); cursor: pointer;
  transition: all 0.3s; margin-left: 0.5rem;
}
.theme-toggle:hover { color: var(--green-forest); border-color: var(--green-sage); }
.theme-toggle svg { width: 14px; height: 14px; }

/* ═══════════════════════════════════════════
   DARK MODE — Deep Forest Green + Gold
   ═══════════════════════════════════════════ */
body.dark {
  --cream: #0c1a10;
  --cream-dark: #0f2014;
  --green-deep: #d4c89a;
  --green-forest: #a8b87a;
  --green-sage: #6a8a5a;
  --green-light: rgba(168, 184, 122, 0.15);
  --green-glow: #a0e86f;
  --green-neon: #b8ff6a;
  --text-primary: #e8e0c8;
  --text-secondary: #bfb89a;
  --text-muted: #8a8468;
  --terminal-bg: #060e08;
  --terminal-green: #a0e86f;
  --terminal-dim: #4a6a3a;
}

body.dark {
  background: #0c1a10;
  color: var(--text-primary);
}

body.dark .nav {
  background: rgba(12, 26, 16, 0.88);
  border-bottom-color: rgba(168, 184, 122, 0.12);
}
body.dark .nav-logo { color: #d4c89a; }
body.dark .nav-links a { color: #8a8468; }
body.dark .nav-links a:hover { color: #d4c89a; }
body.dark .nav-links .nav-cta {
  background: #d4c89a; color: #0c1a10 !important;
}
body.dark .nav-links .nav-cta:hover {
  box-shadow: 0 4px 16px rgba(212, 200, 154, 0.2);
}
body.dark .nav-social a { color: #8a8468; }
body.dark .nav-social a:hover { color: #d4c89a; background: rgba(212, 200, 154, 0.06); }
body.dark .theme-toggle { border-color: rgba(168, 184, 122, 0.2); color: #8a8468; }
body.dark .theme-toggle:hover { color: #d4c89a; border-color: rgba(212, 200, 154, 0.3); }

/* Hero */
body.dark .hero-eyebrow { color: #a8b87a; }
body.dark .hero-title { color: #d4c89a; }
body.dark .hero-subtitle { color: #bfb89a; }
body.dark .hero-stat .stat-value { color: #d4c89a; }
body.dark .hero-stat .stat-label { color: #8a8468; }
body.dark .hero-scroll span { color: #6a6a50; }
body.dark .scroll-arrow { border-color: #6a8a5a; }

/* Stage */
body.dark .stage-number { color: #6a8a5a; }
body.dark .stage-title { color: #d4c89a; }
body.dark .stage-lead { color: #bfb89a; }

/* Text */
body.dark .section-number { color: #6a8a5a; }
body.dark .section-title { color: #d4c89a; }
body.dark .section-lead { color: #a8b87a; border-left-color: #4a6a3a; }
body.dark .section-body { color: #bfb89a; }
body.dark .section-body strong { color: #e8e0c8; }

/* 256D Grid */
body.dark .dim-cell {
  background: rgba(168, 184, 122, 0.06);
  color: rgba(160, 232, 111, 0.4);
}
body.dark .dim-cell.active {
  background: rgba(168, 184, 122, 0.15);
  color: #a0e86f;
}
body.dark .quadrant-label-cell span {
  color: #d4c89a;
  text-shadow: 0 0 8px rgba(12, 26, 16, 0.9), 0 0 16px rgba(12, 26, 16, 0.7);
}

/* Flow nodes */
body.dark .flow-node h4 { color: #d4c89a; }
body.dark .flow-node p { color: #8a8468; }
body.dark .flow-node svg { color: #a8b87a; }

/* Terminal */
body.dark .terminal-box {
  background: #060e08;
  border-color: rgba(160, 232, 111, 0.08);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

/* Economy cards */
body.dark .economy-card { border-left-color: #4a6a3a; }
body.dark .economy-card .eco-icon { color: #a8b87a; }
body.dark .economy-card h4 { color: #d4c89a; }
body.dark .economy-card p { color: #8a8468; }

/* CTA */
body.dark .cta-title { color: #d4c89a; }
body.dark .cta-subtitle { color: #bfb89a; }
body.dark .cta-button {
  background: #d4c89a; color: #0c1a10;
  box-shadow: 0 2px 12px rgba(212, 200, 154, 0.15);
}
body.dark .cta-button:hover {
  box-shadow: 0 6px 24px rgba(212, 200, 154, 0.25);
}
body.dark .cta-links a { color: #8a8468; }
body.dark .cta-links a:hover { color: #d4c89a; }

/* Footer */
body.dark .footer {
  color: #9a9a80;
  border-top-color: rgba(168, 184, 122, 0.15);
}

/* Vitruvian SVG */
body.dark .vitruvian-matrix svg line,
body.dark .vitruvian-matrix svg circle:not([fill]),
body.dark .vitruvian-matrix svg ellipse,
body.dark .vitruvian-matrix svg rect:not([fill]) {
  stroke: #a8b87a;
}
body.dark .vitruvian-matrix svg text {
  fill: #8a8468;
}

/* ═══════════════════════════════════════════
   zkHumanity Verification Modal
   ═══════════════════════════════════════════ */
.zkh-modal-overlay {
  position: fixed; inset: 0;
  z-index: 10000;
  display: flex; align-items: center; justify-content: center;
  background: rgba(45, 74, 53, 0.35);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: 0; visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}
.zkh-modal-overlay.active {
  opacity: 1; visibility: visible;
}
.zkh-modal-container {
  position: relative;
  width: 480px; max-width: 92vw;
  max-height: 88vh;
  background: rgba(250, 250, 245, 0.96);
  backdrop-filter: blur(20px);
  border: 1px solid var(--green-light);
  border-radius: 16px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(74, 124, 89, 0.08);
  overflow: hidden;
  transform: scale(0.92) translateY(20px);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.zkh-modal-overlay.active .zkh-modal-container {
  transform: scale(1) translateY(0);
}

/* Modal header */
.zkh-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid rgba(197, 217, 203, 0.4);
}
.zkh-modal-header-left {
  display: flex; align-items: center; gap: 0.6rem;
}
.zkh-modal-header-icon {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--green-forest), var(--green-deep));
  border-radius: 8px;
  font-size: 16px; line-height: 1;
}
.zkh-modal-title {
  font-family: var(--font-serif);
  font-size: 1.05rem; font-weight: 600;
  color: var(--green-deep);
}
.zkh-modal-subtitle {
  font-family: var(--font-mono);
  font-size: 0.52rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}
.zkh-modal-close {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  background: none; border: 1px solid var(--green-light);
  border-radius: 8px; cursor: pointer;
  color: var(--text-muted);
  transition: all 0.2s;
  font-size: 18px; line-height: 1;
}
.zkh-modal-close:hover {
  color: var(--green-deep);
  border-color: var(--green-sage);
  background: rgba(74, 124, 89, 0.06);
}

/* Modal body — embed container */
.zkh-modal-body {
  padding: 1.5rem;
  min-height: 420px;
  overflow-y: auto;
}

/* Modal footer */
.zkh-modal-footer {
  padding: 0.8rem 1.5rem;
  border-top: 1px solid rgba(197, 217, 203, 0.3);
  text-align: center;
}
.zkh-modal-footer span {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

/* Success toast */
.zkh-toast {
  position: fixed; top: 1.5rem; right: 1.5rem;
  z-index: 10001;
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.8rem 1.2rem;
  background: rgba(250, 250, 245, 0.96);
  backdrop-filter: blur(12px);
  border: 1px solid var(--green-sage);
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(45, 74, 53, 0.15);
  font-family: var(--font-mono);
  font-size: 0.7rem; color: var(--green-deep);
  opacity: 0; transform: translateY(-20px);
  transition: all 0.4s ease;
  pointer-events: none;
}
.zkh-toast.visible {
  opacity: 1; transform: translateY(0);
  pointer-events: auto;
}
.zkh-toast-icon { font-size: 1.2rem; }

/* Dark mode */
body.dark .zkh-modal-overlay {
  background: rgba(6, 14, 8, 0.5);
}
body.dark .zkh-modal-container {
  background: rgba(12, 26, 16, 0.96);
  border-color: rgba(168, 184, 122, 0.15);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(168, 184, 122, 0.06);
}
body.dark .zkh-modal-header {
  border-bottom-color: rgba(168, 184, 122, 0.1);
}
body.dark .zkh-modal-header-icon {
  background: linear-gradient(135deg, #a8b87a, #d4c89a);
}
body.dark .zkh-modal-title { color: #d4c89a; }
body.dark .zkh-modal-subtitle { color: #6a6a50; }
body.dark .zkh-modal-close {
  color: #8a8468;
  border-color: rgba(168, 184, 122, 0.15);
}
body.dark .zkh-modal-close:hover {
  color: #d4c89a;
  border-color: rgba(212, 200, 154, 0.3);
  background: rgba(212, 200, 154, 0.06);
}
body.dark .zkh-modal-footer {
  border-top-color: rgba(168, 184, 122, 0.08);
}
body.dark .zkh-modal-footer span { color: #6a6a50; }
body.dark .zkh-toast {
  background: rgba(12, 26, 16, 0.96);
  border-color: #6a8a5a;
  color: #d4c89a;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

/* Responsive */
@media (max-width: 600px) {
  .zkh-modal-container {
    max-width: 96vw;
    max-height: 92vh;
    border-radius: 12px;
  }
  .zkh-modal-body { padding: 1rem; min-height: 360px; }
}