/* ==========================================================================
   VEKTORAX — LIVING INTELLIGENCE SYSTEM
   Award-Winning Editorial Design System & Kinetic Scroll Reveal Engine
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,300;0,400;0,500;0,700;1,400&family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400;1,600&display=swap');

:root {
  /* Color Tokens */
  --bg-bone: #F7F6F2;
  --bg-bone-subtle: #ECEAE2;
  --bg-bone-card: rgba(255, 255, 255, 0.65);
  
  --bg-dark: #08090B;
  --bg-dark-subtle: #0F1014;
  --bg-dark-card: #121318;
  --bg-dark-card-hover: #181A21;

  --text-dark: #121316;
  --text-dark-muted: #5C5B58;
  --text-dark-light: #8A8884;

  --text-light: #F6F6F8;
  --text-light-muted: #88898C;
  --text-light-dim: #525357;

  --signal-green: #00FF66;
  --signal-lime: #D4FF00;
  --signal-amber: #FFB800;
  --signal-red: #FF3B30;

  --border-light: rgba(0, 0, 0, 0.07);
  --border-light-hover: rgba(0, 0, 0, 0.18);
  --border-dark: rgba(255, 255, 255, 0.08);
  --border-dark-hover: rgba(255, 255, 255, 0.22);
  
  --grid-cross-light: rgba(0, 0, 0, 0.18);
  --grid-cross-dark: rgba(255, 255, 255, 0.2);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', monospace;

  /* Fluid Scales */
  --font-hero: clamp(56px, 9vw, 150px);
  --font-major: clamp(40px, 6.2vw, 96px);
  --font-h1: clamp(32px, 4.8vw, 68px);
  --font-h2: clamp(24px, 3.2vw, 44px);
  --font-body: clamp(16px, 1.25vw, 20px);
  --font-mono-hud: clamp(10px, 0.85vw, 12px);

  /* Easing */
  --ease-cinematic: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-smooth: cubic-bezier(0.25, 1, 0.5, 1);
}

/* Base & Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  background-color: var(--bg-bone);
  color: var(--text-dark);
  font-family: var(--font-sans);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  position: relative;
  width: 100%;
  min-height: 100vh;
  background-color: var(--bg-bone);
  transition: background-color 0.8s var(--ease-cinematic), color 0.8s var(--ease-cinematic);
  overflow-x: hidden;
}

body.theme-dark {
  background-color: var(--bg-dark);
  color: var(--text-light);
}

/* Custom Selection */
::selection {
  background-color: var(--signal-green);
  color: #000000;
}

/* ==========================================================================
   SCROLL REVEAL & KINETIC ANIMATION ENGINE
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(45px);
  transition: opacity 1.1s var(--ease-cinematic), transform 1.1s var(--ease-cinematic);
  will-change: opacity, transform;
}

.reveal.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.12s; }
.reveal-delay-2 { transition-delay: 0.24s; }
.reveal-delay-3 { transition-delay: 0.36s; }
.reveal-delay-4 { transition-delay: 0.48s; }

/* Line Draw Reveal */
.reveal-line {
  width: 100%;
  height: 1px;
  background-color: var(--border-light);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.2s var(--ease-cinematic);
  margin: 40px 0;
}

.dark-theme-section .reveal-line,
body.theme-dark .reveal-line {
  background-color: var(--border-dark);
}

.reveal-line.is-revealed {
  transform: scaleX(1);
}

/* Stagger Grid Children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity 0.9s var(--ease-cinematic), transform 0.9s var(--ease-cinematic);
}

.reveal-stagger.is-revealed > *:nth-child(1) { opacity: 1; transform: translateY(0); transition-delay: 0.05s; }
.reveal-stagger.is-revealed > *:nth-child(2) { opacity: 1; transform: translateY(0); transition-delay: 0.15s; }
.reveal-stagger.is-revealed > *:nth-child(3) { opacity: 1; transform: translateY(0); transition-delay: 0.25s; }
.reveal-stagger.is-revealed > *:nth-child(4) { opacity: 1; transform: translateY(0); transition-delay: 0.35s; }
.reveal-stagger.is-revealed > *:nth-child(5) { opacity: 1; transform: translateY(0); transition-delay: 0.45s; }
.reveal-stagger.is-revealed > *:nth-child(6) { opacity: 1; transform: translateY(0); transition-delay: 0.55s; }

/* ==========================================================================
   PERSISTENT BACKGROUND CORE CANVAS
   ========================================================================== */
#core-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 1;
}

/* ==========================================================================
   GLOBAL SYSTEM HUD (COORDINATES HEADER & FOOTER)
   ========================================================================== */
.system-hud {
  position: fixed;
  left: 0;
  width: 100%;
  pointer-events: none;
  z-index: 90;
  font-family: var(--font-mono);
  font-size: var(--font-mono-hud);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dark-muted);
  transition: color 0.5s var(--ease-cinematic);
}

body.theme-dark .system-hud {
  color: var(--text-light-muted);
}

.system-hud-top {
  top: 0;
  padding: 24px 44px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.03);
}

body.theme-dark .system-hud-top {
  border-bottom-color: rgba(255, 255, 255, 0.04);
}

.system-hud-bottom {
  bottom: 0;
  padding: 20px 44px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid rgba(0, 0, 0, 0.03);
}

body.theme-dark .system-hud-bottom {
  border-top-color: rgba(255, 255, 255, 0.04);
}

.hud-interactive {
  pointer-events: auto;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--text-dark);
  text-decoration: none;
  transition: color 0.3s var(--ease-cinematic);
}

body.theme-dark .brand-wrapper {
  color: var(--text-light);
}

.signal-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--signal-green);
  box-shadow: 0 0 12px var(--signal-green);
  animation: pulseSignal 2.2s infinite ease-in-out;
}

@keyframes pulseSignal {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.8); }
}

.hud-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hud-btn {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--border-light);
  padding: 8px 18px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: var(--font-mono-hud);
  color: inherit;
  cursor: pointer;
  letter-spacing: 0.08em;
  transition: all 0.3s var(--ease-cinematic);
  text-decoration: none;
}

body.theme-dark .hud-btn {
  background: rgba(18, 19, 24, 0.6);
  border-color: var(--border-dark);
}

.hud-btn:hover {
  background-color: var(--signal-green);
  color: #000 !important;
  border-color: var(--signal-green);
  transform: translateY(-1px);
}

.system-position-bar {
  display: flex;
  align-items: center;
  gap: 16px;
}

.progress-track {
  width: 160px;
  height: 2px;
  background-color: var(--border-light);
  position: relative;
}

body.theme-dark .progress-track {
  background-color: var(--border-dark);
}

.progress-thumb {
  position: absolute;
  top: 50%;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--signal-green);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 10px var(--signal-green);
  transition: left 0.05s linear;
}

/* ==========================================================================
   CHAPTER 00: THE BOOT SCREEN
   ========================================================================== */
#boot-screen {
  position: fixed;
  inset: 0;
  background-color: var(--bg-bone);
  z-index: 200;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: opacity 0.6s var(--ease-cinematic), transform 0.7s var(--ease-cinematic);
  cursor: pointer;
}

#boot-screen.boot-done {
  opacity: 0;
  pointer-events: none;
  transform: scale(1.08);
}

.boot-content {
  text-align: center;
  font-family: var(--font-mono);
}

.boot-center-node {
  width: 7px;
  height: 7px;
  background-color: var(--text-dark);
  border-radius: 50%;
  margin: 0 auto 24px auto;
  transition: transform 0.4s var(--ease-cinematic);
}

.boot-core-id {
  font-size: 13px;
  letter-spacing: 0.22em;
  font-weight: 500;
  margin-bottom: 28px;
}

.boot-log-container {
  height: 26px;
  overflow: hidden;
  margin-bottom: 32px;
}

.boot-log-msg {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--text-dark-muted);
}

.boot-percentage {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.boot-ready-text {
  display: none;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: var(--text-dark);
  margin-top: 18px;
}

/* ==========================================================================
   CHAPTER SECTIONS — SPACIOUS EDITORIAL LAYOUT
   ========================================================================== */
.main-experience {
  position: relative;
  z-index: 10;
  width: 100%;
}

.chapter-section {
  position: relative;
  width: 100%;
  min-height: 100vh;
  padding: 200px 8vw 180px 8vw;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-bottom: 1px solid var(--border-light);
  transition: background-color 0.8s var(--ease-cinematic), color 0.8s var(--ease-cinematic);
}

.chapter-section.dark-theme-section {
  background-color: var(--bg-dark);
  color: var(--text-light);
  border-bottom-color: var(--border-dark);
}

.chapter-section.light-theme-section {
  background-color: var(--bg-bone);
  color: var(--text-dark);
  border-bottom-color: var(--border-light);
}

.chapter-inner {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  position: relative;
}

/* Grid Crosshairs & Coordinate Markers */
.grid-corner-cross {
  position: absolute;
  top: -60px;
  left: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--grid-cross-light);
  pointer-events: none;
}

.dark-theme-section .grid-corner-cross {
  color: var(--grid-cross-dark);
}

.mono-tag {
  font-family: var(--font-mono);
  font-size: var(--font-mono-hud);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dark-muted);
  margin-bottom: 28px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.dark-theme-section .mono-tag {
  color: var(--text-light-muted);
}

.mono-tag::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  background-color: var(--signal-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--signal-green);
}

.major-headline {
  font-size: var(--font-major);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  max-width: 1180px;
}

.section-desc {
  max-width: 580px;
  font-size: var(--font-body);
  line-height: 1.65;
  color: var(--text-dark-muted);
  margin-top: 28px;
}

.dark-theme-section .section-desc {
  color: var(--text-light-muted);
}

/* ==========================================================================
   CHAPTER 01: HERO
   ========================================================================== */
#ch-01-hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding-top: 220px;
  padding-bottom: 100px;
}

.hero-headline {
  font-size: var(--font-hero);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -0.045em;
  text-transform: uppercase;
  max-width: 1280px;
}

.headline-line {
  display: block;
  transition: transform 0.1s linear;
}

.hero-footer-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-top: 80px;
  border-top: 1px solid var(--border-light);
  padding-top: 36px;
}

.hero-coords {
  font-family: var(--font-mono);
  font-size: var(--font-mono-hud);
  letter-spacing: 0.1em;
  text-align: right;
  color: var(--text-dark-muted);
  line-height: 1.8;
}

/* ==========================================================================
   CHAPTER 02: SYSTEM MAP
   ========================================================================== */
.map-editorial {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
}

.map-node-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.map-node-item {
  padding: 22px 24px;
  background: var(--bg-bone-card);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.35s var(--ease-cinematic);
  backdrop-filter: blur(8px);
}

.map-node-item.active {
  border-color: var(--signal-green);
  background-color: rgba(0, 255, 102, 0.08);
  box-shadow: 0 4px 20px rgba(0, 255, 102, 0.1);
}

.map-node-item:hover {
  border-color: var(--border-light-hover);
  transform: translateY(-3px);
}

/* ==========================================================================
   CHAPTER 03 & 04: OBSERVE & CONNECT
   ========================================================================== */
.stats-hud-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 50px;
  margin-top: 60px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.stat-box {
  border-left: 2px solid var(--signal-green);
  padding-left: 20px;
}

.stat-label {
  color: var(--text-dark-muted);
  font-size: 10px;
  letter-spacing: 0.12em;
  margin-bottom: 8px;
}

.dark-theme-section .stat-label {
  color: var(--text-light-muted);
}

.stat-val {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* ==========================================================================
   CHAPTER 06: DECISION ENGINE (SPACIOUS GLASSMORPHIC CONTAINER)
   ========================================================================== */
.decision-simulator-box {
  background-color: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: 12px;
  padding: 44px;
  margin-top: 48px;
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 44px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7);
}

.decision-controls {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.control-header {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-light-muted);
}

.custom-range {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.custom-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--signal-green);
  cursor: pointer;
  box-shadow: 0 0 14px var(--signal-green);
  transition: transform 0.2s ease;
}

.custom-range::-webkit-slider-thumb:hover {
  transform: scale(1.3);
}

.decision-canvas-wrap {
  position: relative;
  width: 100%;
  min-height: 380px;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
}

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

.decision-output-row {
  display: flex;
  gap: 16px;
  margin-top: 20px;
}

.path-card {
  flex: 1;
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-dark);
  border-radius: 6px;
  font-family: var(--font-mono);
  transition: all 0.35s var(--ease-cinematic);
}

.path-card.active-path {
  border-color: var(--signal-green);
  background: rgba(0, 255, 102, 0.08);
  box-shadow: 0 0 20px rgba(0, 255, 102, 0.15);
}

.path-score {
  font-size: 22px;
  font-weight: 700;
  margin-top: 6px;
}

.recommended-pill {
  display: inline-block;
  background-color: var(--signal-green);
  color: #000;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: 999px;
  margin-top: 18px;
}

/* ==========================================================================
   CHAPTER 08: COMMAND TERMINAL
   ========================================================================== */
.terminal-command-deck {
  margin-top: 50px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  font-family: var(--font-mono);
}

.terminal-row {
  background: rgba(255, 255, 255, 0.02);
  border-left: 3px solid rgba(255, 255, 255, 0.15);
  padding: 22px 30px;
  border-radius: 0 6px 6px 0;
  transition: all 0.4s var(--ease-cinematic);
}

.terminal-row.active {
  border-color: var(--signal-green);
  background: rgba(0, 255, 102, 0.06);
}

.terminal-prompt {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 8px;
}

.terminal-result {
  font-size: 14px;
  color: var(--signal-green);
}

/* ==========================================================================
   CHAPTER 09: HUMAN INTERRUPTION
   ========================================================================== */
.human-statement-1 {
  font-size: clamp(38px, 6vw, 90px);
  font-weight: 700;
  letter-spacing: -0.03em;
  max-width: 960px;
}

.human-spacer {
  height: 30vh;
}

.human-statement-2 {
  font-size: clamp(38px, 6vw, 90px);
  font-weight: 700;
  letter-spacing: -0.03em;
  max-width: 960px;
  color: var(--text-dark-muted);
}

/* ==========================================================================
   CHAPTER 10: REAL-WORLD IMPACT
   ========================================================================== */
.impact-typography-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 48px;
}

.impact-mask-word {
  font-size: clamp(60px, 9.5vw, 150px);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.05em;
  text-transform: uppercase;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.2);
  background-image: linear-gradient(135deg, #FFF 0%, var(--signal-green) 50%, #444 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  cursor: pointer;
  transition: all 0.45s var(--ease-cinematic);
}

.impact-mask-word:hover {
  -webkit-text-stroke: 1px var(--signal-green);
  background-position: 100% 100%;
  transform: translateX(24px);
}

/* ==========================================================================
   CHAPTER 11: INFINITE CANVAS
   ========================================================================== */
.infinite-cards-wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 50px;
}

.infinite-project-card {
  border: 1px solid var(--border-dark);
  background: var(--bg-dark-card);
  padding: 36px 32px;
  border-radius: 6px;
  font-family: var(--font-mono);
  transition: all 0.45s var(--ease-cinematic);
}

.infinite-project-card:hover {
  transform: translateY(-10px);
  border-color: var(--signal-green);
  background: var(--bg-dark-card-hover);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

.project-coords {
  font-size: 11px;
  color: var(--signal-green);
  margin-bottom: 16px;
}

.project-title {
  font-family: var(--font-sans);
  font-size: 24px;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 12px;
}

/* ==========================================================================
   CHAPTER 12: CASE STUDY
   ========================================================================== */
.case-metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 60px;
}

.case-metric-cell {
  border-top: 2px solid var(--signal-green);
  padding-top: 28px;
}

.case-metric-number {
  font-size: clamp(52px, 7vw, 100px);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--signal-green);
  line-height: 1;
}

.case-metric-label {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  margin-top: 14px;
  color: var(--text-light-muted);
}

/* ==========================================================================
   CHAPTER 13: TYPOGRAPHIC MACHINE
   ========================================================================== */
.typo-machine-sequence {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 48px;
  font-size: clamp(34px, 5vw, 74px);
  font-weight: 800;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.typo-stage {
  opacity: 0.25;
  transition: opacity 0.45s var(--ease-cinematic), transform 0.45s var(--ease-cinematic);
}

.typo-stage.active-stage {
  opacity: 1;
  color: var(--signal-green);
  transform: translateX(20px);
}

.machine-arrow {
  font-family: var(--font-mono);
  font-size: 26px;
  color: var(--text-light-muted);
}

/* ==========================================================================
   CHAPTER 14: LIVE SYSTEM PANEL
   ========================================================================== */
.live-telemetry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 54px;
  font-family: var(--font-mono);
}

.telemetry-cell {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  padding: 32px 28px;
  border-radius: 6px;
  transition: all 0.35s ease;
}

.telemetry-cell:hover {
  border-color: var(--border-dark-hover);
  transform: translateY(-4px);
}

.telemetry-val {
  font-size: clamp(32px, 3.8vw, 52px);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-light);
  margin: 14px 0;
}

/* ==========================================================================
   CHAPTER 15 & 16: CORE RETURNS
   ========================================================================== */
.interaction-hints {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-light-muted);
}

.hint-pill {
  padding: 10px 20px;
  border: 1px solid var(--border-dark);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
}

/* ==========================================================================
   CHAPTER 17: FINAL STATEMENT & CONTACT CTA
   ========================================================================== */
#ch-17-final {
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.final-headline {
  font-size: var(--font-major);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  max-width: 960px;
  margin-bottom: 48px;
}

.cta-trigger-wrap {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
}

.final-origin-node {
  width: 12px;
  height: 12px;
  background-color: #000;
  border-radius: 50%;
  margin-bottom: 28px;
  transition: transform 0.3s var(--ease-cinematic);
}

.cta-button-link {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #000;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 34px;
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 999px;
  transition: all 0.35s var(--ease-cinematic);
  background: rgba(255, 255, 255, 0.6);
}

.cta-button-link:hover {
  background-color: #000;
  color: var(--signal-green);
  border-color: #000;
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

/* ==========================================================================
   EXPANDING SINGLE NODE CONTACT TAKEOVER MODAL
   ========================================================================== */
#contact-modal {
  position: fixed;
  inset: 0;
  background-color: var(--bg-dark);
  color: var(--text-light);
  z-index: 300;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px;
  opacity: 0;
  pointer-events: none;
  clip-path: circle(0% at 50% 50%);
  transition: clip-path 0.8s var(--ease-cinematic), opacity 0.5s ease;
}

#contact-modal.active {
  opacity: 1;
  pointer-events: auto;
  clip-path: circle(150% at 50% 50%);
}

.contact-modal-inner {
  width: 100%;
  max-width: 860px;
  position: relative;
}

.modal-close-btn {
  position: absolute;
  top: -44px;
  right: 0;
  background: transparent;
  border: none;
  color: var(--text-light-muted);
  font-family: var(--font-mono);
  font-size: 13px;
  cursor: pointer;
  letter-spacing: 0.1em;
}

.modal-close-btn:hover {
  color: var(--signal-green);
}

.contact-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 36px;
}

.form-full {
  grid-column: span 2;
}

.input-field {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-dark);
  border-radius: 6px;
  padding: 18px 22px;
  color: #FFF;
  font-family: var(--font-sans);
  font-size: 15px;
  outline: none;
  transition: border-color 0.3s ease;
}

.input-field:focus {
  border-color: var(--signal-green);
}

.send-signal-btn {
  background: var(--signal-green);
  color: #000;
  border: none;
  padding: 18px 40px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.3s var(--ease-cinematic);
}

.send-signal-btn:hover {
  background: #FFF;
  transform: translateY(-2px);
}

.form-success-state {
  display: none;
  text-align: center;
  padding: 60px 0;
}

.form-success-state.active {
  display: block;
}

/* ==========================================================================
   CUSTOM CONTEXT CURSOR
   ========================================================================== */
#custom-cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--signal-green);
  pointer-events: none;
  z-index: 999;
  transform: translate(-50%, -50%);
  transition: width 0.3s var(--ease-cinematic), height 0.3s var(--ease-cinematic), background-color 0.3s ease;
  display: flex;
  justify-content: center;
  align-items: center;
}

#cursor-badge {
  display: none;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #000;
  white-space: nowrap;
}

#custom-cursor.cursor-expand {
  width: 66px;
  height: 66px;
  background-color: var(--signal-green);
}

#custom-cursor.cursor-expand #cursor-badge {
  display: block;
}

@media (pointer: coarse), (max-width: 768px) {
  #custom-cursor {
    display: none !important;
  }
}

/* ==========================================================================
   ARCHITECTURAL MODE OVERLAY (EASTER EGG "BUILD")
   ========================================================================== */
#architect-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 400;
  display: none;
}

#architect-overlay.active {
  display: block;
}

.arch-grid-columns {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
  height: 100%;
  padding: 0 8vw;
}

.arch-col {
  border-left: 1px dashed rgba(255, 59, 48, 0.35);
  border-right: 1px dashed rgba(255, 59, 48, 0.35);
  background: rgba(255, 59, 48, 0.02);
  height: 100%;
}

.arch-hud-badge {
  position: fixed;
  top: 80px;
  right: 44px;
  background: #000;
  border: 1px solid var(--signal-red);
  color: var(--signal-red);
  padding: 16px 22px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  pointer-events: auto;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.8);
}

/* ==========================================================================
   RESPONSIVE DESIGN (TABLET & MOBILE)
   ========================================================================== */
@media (max-width: 1024px) {
  .decision-simulator-box {
    grid-template-columns: 1fr;
  }
  .case-metrics-grid, .live-telemetry-grid, .infinite-cards-wrap {
    grid-template-columns: 1fr 1fr;
  }
  .map-editorial {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .chapter-section {
    padding: 120px 6vw 100px 6vw;
  }
  .system-hud-top, .system-hud-bottom {
    padding: 16px 20px;
  }
  .progress-track {
    display: none;
  }
  .map-node-list {
    grid-template-columns: 1fr;
  }
  .case-metrics-grid, .live-telemetry-grid, .infinite-cards-wrap {
    grid-template-columns: 1fr;
  }
  .contact-form-grid {
    grid-template-columns: 1fr;
  }
  .form-full {
    grid-column: span 1;
  }
}