/* ===== Reset ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #fafafa;
  --color-text: #1a1a1a;
  --color-text-light: #737373;
  --color-accent: #2563eb;

  /* Protocol Colors - Match Time to Build */
  --color-inference: #083A52;    /* iosp-blue */
  --color-quality: #177973;      /* iosp-teal */
  --color-engagement: #5B3A8F;   /* iosp-purple */
  --color-coordination: #C23555; /* iosp-coral */
  --color-preservation: #0191BD; /* iosp-cyan */

  --timeline-height: 220px; /* Increased for 5 tracks + labels */
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
}

/* ===== Intro Section Wrapper - spans all intro moments ===== */
.intro-section-wrapper {
  position: relative;
}

/* ===== Narrative Moments - New Scrollytelling Structure ===== */
.narrative-moment {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 0 2rem;
}

.moment-content {
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 10;
  opacity: 0;
}

.moment-content h1 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0 auto 1.5rem;
  text-align: center;
  width: 100%;
}

.moment-content h2 {
  font-size: clamp(1.75rem, 4.5vw, 3.5rem);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.moment-content p {
  font-size: clamp(1.1rem, 2.5vw, 1.8rem);
  color: var(--color-text-light);
  line-height: 1.6;
  max-width: 800px;
  margin: 0 auto;
}

/* Intro Dots Container - spans all intro moments */
.intro-dots-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 5;
  opacity: 1;
}

.intro-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  will-change: transform;
  pointer-events: none;
  opacity: 0.8;
}

/* Protocol Labels Container for Five Circles */
.protocol-labels-container {
  position: fixed;
  top: 50%;
  left: 0;
  width: 100%;
  height: 0;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  z-index: 10;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%);
}

.protocol-label-wrapper {
  position: absolute;
  text-align: center;
  width: 200px;
  transform: translateX(-50%);
}

/* Position each label to match the circle positions */
.protocol-label-wrapper[data-protocol="Inference"] {
  left: calc(100vw / 6 * 1);
}

.protocol-label-wrapper[data-protocol="Quality"] {
  left: calc(100vw / 6 * 2);
}

.protocol-label-wrapper[data-protocol="Engagement"] {
  left: calc(100vw / 6 * 3);
}

.protocol-label-wrapper[data-protocol="Coordination"] {
  left: calc(100vw / 6 * 4);
}

.protocol-label-wrapper[data-protocol="Preservation"] {
  left: calc(100vw / 6 * 5);
}

.protocol-label-text {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.protocol-label-subtext {
  font-size: clamp(0.75rem, 1.5vw, 0.95rem);
  color: var(--color-text-light);
  font-style: italic;
}

/* Protocol-specific colors for labels */
.protocol-label-wrapper[data-protocol="Inference"] .protocol-label-text {
  color: var(--color-inference);
}

.protocol-label-wrapper[data-protocol="Quality"] .protocol-label-text {
  color: var(--color-quality);
}

.protocol-label-wrapper[data-protocol="Engagement"] .protocol-label-text {
  color: var(--color-engagement);
}

.protocol-label-wrapper[data-protocol="Coordination"] .protocol-label-text {
  color: var(--color-coordination);
}

.protocol-label-wrapper[data-protocol="Preservation"] .protocol-label-text {
  color: var(--color-preservation);
}

/* Visual containers */
.visual-container {
  position: relative;
  width: 100%;
  max-width: 600px;
  height: 400px;
  margin: 2rem auto 0;
}

/* Protocol Visual Styles */
.protocol-visual {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Single Circle */
.protocol-visual.single-circle {
  display: flex;
  align-items: center;
  justify-content: center;
}

.circle-ring {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 3px solid var(--color-accent);
  position: relative;
  animation: rotate-circle 20s linear infinite;
}

/* Protocol-specific colors */
.circle-ring.inference { border-color: var(--color-inference); }
.circle-ring.quality { border-color: var(--color-quality); }
.circle-ring.engagement { border-color: var(--color-engagement); }
.circle-ring.coordination { border-color: var(--color-coordination); }
.circle-ring.preservation { border-color: var(--color-preservation); }

@keyframes rotate-circle {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Five Circles Layout */
.protocol-visual.five-circles {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  padding: 2rem;
}

.protocol-circle {
  flex: 1;
  min-width: 150px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.protocol-circle .circle-ring {
  width: 120px;
  height: 120px;
}

.protocol-label {
  text-align: center;
}

.protocol-name {
  font-size: clamp(1rem, 2vw, 1.4rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.protocol-subtext {
  font-size: clamp(0.75rem, 1.5vw, 0.95rem);
  color: var(--color-text-light);
  font-style: italic;
}

/* Inference protocol */
.protocol-circle[data-protocol="Inference"] .protocol-name {
  color: var(--color-inference);
}

/* Quality protocol */
.protocol-circle[data-protocol="Quality"] .protocol-name {
  color: var(--color-quality);
}

/* Engagement protocol */
.protocol-circle[data-protocol="Engagement"] .protocol-name {
  color: var(--color-engagement);
}

/* Coordination protocol */
.protocol-circle[data-protocol="Coordination"] .protocol-name {
  color: var(--color-coordination);
}

/* Preservation protocol */
.protocol-circle[data-protocol="Preservation"] .protocol-name {
  color: var(--color-preservation);
}

/* Systems Visual Styles */
.three-systems-visual {
  position: fixed;
  top: 50%;
  left: 0;
  width: 100%;
  height: 0;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  z-index: 10;
  opacity: 0; /* Controlled by GSAP */
  pointer-events: none;
  transform: translateY(-50%);
}

.system-label-wrapper {
  position: absolute;
  text-align: center;
  width: 250px;
  transform: translateX(-50%);
}

.system-label-wrapper .system-name {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.system-label-wrapper .system-subtext {
  font-size: clamp(0.75rem, 1.5vw, 0.95rem);
  color: var(--color-text-light);
  font-style: italic;
}

/* Color each system label */
.system-label-wrapper[data-system="Corporate"] .system-name {
  color: #ef4444;
}

.system-label-wrapper[data-system="Institutional"] .system-name {
  color: #3b82f6;
}

.system-label-wrapper[data-system="Benefactor"] .system-name {
  color: #10b981;
}

/* Position each label to match the circle positions */
.system-label-wrapper[data-system="Corporate"] {
  left: 25%; /* First third */
}

.system-label-wrapper[data-system="Institutional"] {
  left: 50%; /* Middle */
}

.system-label-wrapper[data-system="Benefactor"] {
  left: 75%; /* Last third */
}

/* Systems Phase Headers (above circles) */
.systems-phase-header {
  position: fixed;
  top: 15%;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  width: 90%;
  max-width: 800px;
  z-index: 15;
  opacity: 0; /* Controlled by GSAP */
}

.systems-header-configs,
.systems-header-infra {
  /* Both start hidden, GSAP controls visibility */
}

/* System Config and Infra Labels - positioned BELOW the dot circles */
.system-config,
.system-infra {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 25vh; /* Offset below the circle center */
  width: max-content;
  max-width: 220px;
  font-size: clamp(0.8rem, 1.5vw, 1rem);
  opacity: 0; /* Controlled by GSAP */
  line-height: 1.4;
  text-align: center;
  color: var(--color-text);
  font-weight: 500;
}

/* Infra labels use same styling as config labels */

.system-circle {
  flex: 1;
  min-width: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.system-circle .circle-ring {
  display: none; /* Hide solid circles - dots will form the circles */
}

.system-circle.corporate .circle-ring {
  border-color: #ef4444;
}

.system-circle.institutional .circle-ring {
  border-color: #3b82f6;
}

.system-circle.benefactor .circle-ring {
  border-color: #10b981;
}

.system-label {
  text-align: center;
}

.system-name {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.system-subtext {
  font-size: clamp(0.8rem, 1.5vw, 1rem);
  color: var(--color-text-light);
  font-style: italic;
}

/* Convergence dot visual */
.convergence-dot-visual {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-accent);
  margin: 0 auto;
  box-shadow: 0 0 30px rgba(37, 99, 235, 0.6);
  animation: pulse-dot 2s ease-in-out infinite;
  opacity: 0; /* Start hidden */
}

@keyframes pulse-dot {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.3);
    opacity: 0.8;
  }
}

/* Floating Cards Container (for scenes 8 & 9) */
.floating-cards-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.floating-card {
  position: absolute;
  opacity: 0;
  padding: 1rem 1.5rem;
  border-radius: 8px;
  max-width: 350px;
  backdrop-filter: blur(4px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  font-weight: 500;
  line-height: 1.5;
  pointer-events: none;
}

.floating-card.stressor {
  background: rgba(254, 242, 242, 0.9);
  border: 1px solid rgba(220, 38, 38, 0.3);
  color: #991b1b;
}

.floating-card.achievement {
  background: rgba(240, 253, 244, 0.9);
  border: 1px solid rgba(5, 150, 105, 0.3);
  color: #14532d;
}

.floating-card-year {
  display: block;
  font-size: 0.75em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.floating-card.stressor .floating-card-year {
  color: #dc2626;
}

.floating-card.achievement .floating-card-year {
  color: #059669;
}

/* Timeline reveal spacer */
.timeline-reveal-spacer {
  height: 20vh;
}

/* Alternative timeline spacer - gives space after alternative events */
.alt-timeline-spacer {
  height: 100vh; /* Just enough to let final scene complete */
  background: var(--color-bg);
}

/* Scene-specific styles - backgrounds now controlled by JS */
.scene-moment.scene-stress {
  background: transparent;
}

.scene-moment.scene-breaking {
  background: transparent;
  min-height: 400vh; /* 3x longer than default 100vh */
}

.scene-moment.scene-achievements {
  background: transparent;
  min-height: 400vh; /* 4x longer than default 100vh */
}

/* Closing scenes (15-18) - white background */
.scene-moment.scene-future,
.scene-moment.scene-three-systems {
  background: var(--color-bg);
}

/* Scene 18 - Extended for final scene */
.scene-moment.scene-institute {
  background: var(--color-bg);
  min-height: 1200vh; /* 2x longer than default 100vh */
}

/* Scene 17 - Extended height for longer dot spawning */
.scene-moment.scene-thousands {
  background: var(--color-bg);
  min-height: 200vh; /* Reduced from 1200vh */
}

/* Scene 17.5 - Each Connected via a Shared Technical Substrate */
.scene-moment.scene-substrate {
  background: var(--color-bg);
  min-height: 200vh; /* Increased from 100vh */
}

/* Fixed background overlay for Act III scenes */
.act-three-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  background: var(--color-bg);
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .narrative-moment {
    padding: 2rem 1rem;
  }

  .protocol-labels-container {
    flex-direction: column;
    gap: 2rem;
    width: 100%;
  }

  .protocol-label-wrapper {
    min-width: 100%;
  }

  .protocol-visual.five-circles {
    flex-direction: column;
    gap: 2rem;
  }

  .protocol-circle {
    min-width: 100%;
  }

  .three-systems-visual {
    flex-direction: column;
    gap: 2rem;
  }

  .system-circle {
    min-width: 100%;
  }

  .floating-card {
    max-width: 90%;
    font-size: 0.85rem;
    padding: 0.85rem 1.25rem;
  }
}

/* ===== Animated Intro Section ===== */
.intro-animation-section {
  height: 100vh;
  position: relative;
  overflow: hidden;
  background: var(--color-bg);
}

.intro-content-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Intro text phases */
.intro-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 10;
  pointer-events: none;
}

.intro-text h1 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0;
  max-width: 800px;
}

/* Phase 1: Initial text */
.intro-phase-1 {
  opacity: 1;
}

/* Phase 2: Protocol labels (5 circles layout) */
.intro-phase-2 {
  opacity: 0;
  width: 90%;
  max-width: 1400px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.protocol-label-container {
  flex: 1;
  min-width: 180px;
  text-align: center;
}

.protocol-label-text {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.protocol-label-subtext {
  font-size: clamp(0.75rem, 1.5vw, 0.95rem);
  color: var(--color-text-light);
  font-style: italic;
}

/* Protocol-specific colors for labels */
.protocol-label-container[data-protocol="Inference"] .protocol-label-text {
  color: var(--color-inference);
}

.protocol-label-container[data-protocol="Quality"] .protocol-label-text {
  color: var(--color-quality);
}

.protocol-label-container[data-protocol="Engagement"] .protocol-label-text {
  color: var(--color-engagement);
}

.protocol-label-container[data-protocol="Coordination"] .protocol-label-text {
  color: var(--color-coordination);
}

.protocol-label-container[data-protocol="Preservation"] .protocol-label-text {
  color: var(--color-preservation);
}

/* Phase 3: Recombined text */
.intro-phase-3 {
  opacity: 0;
}

/* Phase 4: Institutional system text */
.intro-phase-4 {
  opacity: 0;
}

/* System labels for Scene 12 (similar to protocol labels) */
.system-labels-container {
  position: absolute;
  width: 95%;
  max-width: none;
  display: flex;
  justify-content: space-evenly;
  align-items: center;
  flex-wrap: nowrap;
  gap: 0;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  pointer-events: none;
  opacity: 0;
  padding: 0 2rem;
}

.system-label-container {
  flex: 1;
  text-align: center;
}

.system-label-text {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-text);
}

/* Intro dots container */
#intro-dots-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  pointer-events: none;
  z-index: 5;
}

/* Systems Animation Section (Scenes 11-13) - matches intro structure */
.systems-animation-section {
  height: 100vh;
  position: relative;
  overflow: hidden;
  background: var(--color-bg);
}

.systems-content-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Systems section wrapper - like intro-section-wrapper */
.systems-section-wrapper {
  position: relative;
}

/* Systems dots container (shared by all systems moments) */
#systems-dots-container {
  position: fixed; /* Fixed like intro-dots-container should be */
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  pointer-events: none;
  z-index: 5;
  opacity: 0; /* Start hidden */
}

/* Scene phases within systems section */
.scene-phase-11a,
.scene-phase-11b,
.scene-phase-12,
.scene-phase-13 {
  opacity: 0;
}

/* Individual intro dots */
.intro-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  will-change: transform;
  pointer-events: none;
}

/* Mobile adjustments for intro */
@media (max-width: 768px) {
  .intro-phase-2 {
    flex-direction: column;
    gap: 3rem;
  }

  .protocol-label-container {
    min-width: 100%;
  }

  .intro-dot {
    width: 6px;
    height: 6px;
  }

  .system-labels-container {
    flex-direction: column;
    gap: 3rem;
  }

  .system-label-container {
    min-width: 100%;
  }
}

/* ===== Event Sections ===== */
.event-section, .alt-event-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  padding-bottom: calc(var(--timeline-height) + 2rem);
  position: relative;
}

/* ===== Simple Events (just scroll past, no cards) ===== */
.simple-event, .alt-simple-event {
  min-height: 20vh;
  padding: 2rem;
  padding-bottom: calc(var(--timeline-height) + 2rem);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 4rem;
}

.simple-event-content {
  width: 800px;
  max-width: 800px;
  margin: 0;
  opacity: 0.7;
}

.simple-year {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.simple-title {
  font-size: 1.1rem;
  color: var(--color-text);
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.simple-protocols {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.simple-description {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-light);
  max-width: 600px;
}

.protocol-effects {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.protocol-effects-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.protocol-effect {
  margin-bottom: 0.75rem;
  line-height: 1.6;
  display: block;
}

.protocol-effect-name {
  font-weight: 700;
  font-size: 0.9rem;
  margin-right: 0.5rem;
}

.protocol-effect-text {
  font-size: 0.9rem;
  color: var(--color-text);
}

.simple-reference {
  font-size: 0.75rem;
  color: var(--color-accent);
  margin-top: 0.5rem;
}

.simple-reference a {
  color: var(--color-accent);
  text-decoration: underline;
  opacity: 0.7;
}

.simple-reference a:hover {
  opacity: 1;
}

/* ===== Stressor Events (system failures) ===== */
.stressor-event, .alt-stressor-event {
  min-height: 20vh;
  padding: 2rem;
  padding-bottom: calc(var(--timeline-height) + 2rem);
  display: flex;
  align-items: flex-start;
  padding-top: 4rem;
  background: linear-gradient(to right, transparent, rgba(239, 68, 68, 0.03), transparent);
}

.stressor-event-content {
  max-width: 800px;
  margin: 0 auto;
  opacity: 0.85;
  padding: 1.25rem;
  border-left: 3px solid #ef4444;
  background: linear-gradient(to right, #fef2f2, transparent);
  border-radius: 4px;
}

.stressor-year {
  font-size: 0.875rem;
  font-weight: 600;
  color: #dc2626;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.stressor-title {
  font-size: 1.1rem;
  color: #991b1b;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.stressor-description {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  max-width: 600px;
  margin-bottom: 0.5rem;
}

.stressor-reference {
  font-size: 0.75rem;
  color: #dc2626;
  font-style: italic;
}

.stressor-reference a {
  color: #dc2626;
  text-decoration: underline;
  opacity: 0.7;
}

.stressor-reference a:hover {
  opacity: 1;
}

/* Stressor Era Card (inline within first stressor event) */
.stressor-era-card {
  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
  border: 1px solid #fca5a5;
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.stressor-era-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #991b1b;
  margin: 0 0 0.75rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.stressor-era-title::before {
  content: "⚠";
  font-size: 1.25rem;
}

.stressor-era-overview {
  font-size: 1rem;
  line-height: 1.7;
  color: #7f1d1d;
  margin: 0;
}

/* Era cards - full width, professional, compact */
.era-card {
  max-width: 1200px;
  margin: 0 auto;
  background: white;
  padding: 2rem 2.5rem;
  border-radius: 6px;
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
  border: 1px solid #e5e7eb;
  position: relative;
  transform-origin: center center;
}

/* System cards - professional styling */
.system-card {
  position: relative;
  background: #fafbfc;
  border-left: 3px solid #3b82f6;
}

.system-tagline {
  font-size: 0.9rem;
  color: #6b7280;
  font-style: italic;
  margin-top: 0.25rem;
  margin-bottom: 0.75rem;
}

.system-section-subtitle {
  font-size: 0.8rem;
  font-weight: 600;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
  margin-top: 1.25rem;
}

.system-configuration {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid #e5e7eb;
}

.config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.config-item {
  font-size: 0.875rem;
  line-height: 1.5;
  color: #4b5563;
}

.config-item strong {
  color: #374151;
  font-weight: 600;
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.system-tech-infra,
.system-problem,
.system-difference,
.system-rebellion {
  font-size: 0.875rem;
  line-height: 1.6;
  color: #4b5563;
  margin-top: 1rem;
}

.system-tech-infra strong,
.system-problem strong,
.system-difference strong,
.system-rebellion strong {
  color: #374151;
  font-weight: 600;
}

.system-policies {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid #e5e7eb;
}

.policy-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.policy-list li {
  font-size: 0.875rem;
  line-height: 1.6;
  color: #4b5563;
  margin-bottom: 0.5rem;
  padding-left: 1rem;
  position: relative;
}

.policy-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: #9ca3af;
}

.policy-list li strong {
  color: #374151;
  font-weight: 600;
}

/* Alternative Era Cards - REFACTORED to match main timeline quality */
.alt-era-card {
  background: linear-gradient(135deg, #ffffff 0%, #f9fafb 100%);
  border: 1px solid #e5e7eb;
  border-radius: 1rem;
  padding: 2.5rem 3rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  max-width: 900px;
  margin: 0 auto;
}

.era-tagline {
  font-size: 0.85rem;
  color: #6b7280;
  font-style: italic;
  margin-top: 0.2rem;
  margin-bottom: 0.65rem;
}

.era-meanwhile,
.era-key-dev,
.era-status,
.era-inflection {
  font-size: 0.85rem;
  line-height: 1.5;
  color: #4b5563;
  margin-top: 0.85rem;
}

.era-meanwhile strong,
.era-key-dev strong,
.era-status strong,
.era-inflection strong {
  color: #374151;
  font-weight: 600;
}

.alt-era-card .era-overview {
  font-size: 0.875rem;
  line-height: 1.5;
  margin-bottom: 0.85rem;
}

.alt-era-card .event-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: #1a1a1a;
}

.era-crisis-section {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid #e5e7eb;
}

.era-section-subtitle {
  font-size: 0.75rem;
  font-weight: 600;
  color: #9ca3af;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.65rem;
}

.era-crisis-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.era-crisis-list li {
  font-size: 0.875rem;
  line-height: 1.6;
  color: #4b5563;
  margin-bottom: 0.5rem;
  padding-left: 1rem;
  position: relative;
}

.era-crisis-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: #dc2626;
}

.era-crisis-list li strong {
  color: #374151;
  font-weight: 600;
}

/* Work Ahead Section (for 2025 Substrate card) - VERY COMPACT */
.era-work-ahead {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid #e5e7eb;
}

.work-ahead-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem 2rem;
  margin-top: 0.5rem;
}

.work-item {
  font-size: 0.8rem;
  line-height: 1.4;
  color: #4b5563;
}

.work-component {
  font-weight: 600;
  color: #374151;
}

/* Additional era card fields */
.era-emergence {
  font-size: 0.9rem;
  line-height: 1.6;
  color: #6b7280;
  margin-top: 1rem;
  font-style: italic;
}

.era-antifragility {
  font-size: 0.9rem;
  line-height: 1.6;
  color: #4b5563;
  margin-top: 1rem;
  padding: 0.75rem;
  background: #f9fafb;
  border-radius: 4px;
}

.era-antifragility strong {
  color: #059669;
  font-weight: 600;
}

.era-emotional-tone {
  font-size: 0.95rem;
  line-height: 1.5;
  color: #111827;
  margin-top: 1.25rem;
  font-style: italic;
  font-weight: 500;
  text-align: center;
}

.era-goal {
  font-size: 0.9rem;
  line-height: 1.6;
  color: #4b5563;
  margin-top: 1rem;
}

.era-goal strong {
  color: #374151;
  font-weight: 600;
}

/* System badge in top-right corner */
.system-card::before {
  content: 'SYSTEM';
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  padding: 0.4rem 0.8rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  border-radius: 6px;
  z-index: 10;
}

/* Institutional system - blue tint */
.system-section[data-system-name*="Institutional"] .system-card {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border: 2px solid #bfdbfe;
}

.system-section[data-system-name*="Institutional"] .system-card::before {
  background: #2563eb;
  color: white;
}

/* Corporate system - red tint */
.system-section[data-system-name*="Corporate"] .system-card {
  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
  border: 2px solid #fecaca;
}

.system-section[data-system-name*="Corporate"] .system-card::before {
  background: #ef4444;
  color: white;
}

/* Benefactor system - green tint */
.system-section[data-system-name*="Benefactor"] .system-card {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  border: 2px solid #bbf7d0;
}

.system-section[data-system-name*="Benefactor"] .system-card::before {
  background: #10b981;
  color: white;
}

.era-card .event-year {
  color: #6b7280;
  font-size: 0.9rem;
}

.era-card .event-title {
  font-size: 1.65rem;
  font-weight: 600;
  color: #111827;
  margin-bottom: 0.4rem;
  letter-spacing: -0.01em;
}

.era-card .event-description {
  font-size: 1rem;
  color: #4b5563;
  line-height: 1.6;
}

/* Era Card Header - Professional Single Column Layout */
.era-header-section {
  margin-bottom: 2rem;
}

.era-header-left {
  margin-bottom: 1.25rem;
}

.era-header-right {
  /* No special styling needed */
}

/* Enhanced Era Substrate / Technical Foundation Display */
.era-substrate-section {
  margin: 1rem 0;
  padding: 0.75rem 1rem;
  background: rgba(124, 58, 237, 0.08);
  border-left: 3px solid rgba(124, 58, 237, 0.5);
  border-radius: 0 4px 4px 0;
}

.era-substrate-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  color: #7c3aed;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.substrate-icon {
  font-size: 0.9rem;
}

.era-substrate-text {
  margin: 0;
  font-size: 0.9rem;
  color: #374151;
  line-height: 1.5;
  font-style: italic;
}

/* Enhanced Era Status Section - for divergence warnings */
.era-status-section {
  margin: 1rem 0;
  padding: 0.75rem 1rem;
  background: rgba(234, 88, 12, 0.1);
  border-left: 3px solid rgba(234, 88, 12, 0.6);
  border-radius: 0 4px 4px 0;
}

.era-status-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  color: #ea580c;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-icon {
  font-size: 0.9rem;
}

.era-status-text {
  margin: 0;
  font-size: 0.9rem;
  color: #374151;
  line-height: 1.5;
}

/* Legacy class kept for backwards compatibility */
.era-substrate {
  font-size: 0.85rem;
  color: #6b7280;
  font-style: italic;
  line-height: 1.5;
  padding: 0.75rem 0;
  border-top: 1px solid #f3f4f6;
  border-bottom: 1px solid #f3f4f6;
  margin-bottom: 1rem;
}

.era-substrate strong {
  font-weight: 600;
  color: #374151;
  font-style: normal;
}

.era-overview {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #374151;
  margin-bottom: 1.25rem;
}

/* Protocol Details - Simplified Format */
.protocol-details-container {
  margin-top: 1.5rem;
  overflow-x: auto;
}

/* Protocol Functions Section - Professional & Compact */
.protocol-functions-container {
  margin-bottom: 1.25rem;
}

.protocol-section-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: #9ca3af;
  margin-bottom: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.protocol-row-simple {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.25rem;
  margin-bottom: 0;
  padding: 0.45rem 0;
  border-bottom: 1px solid #f9fafb;
  align-items: baseline;
}

.protocol-row-simple:last-child {
  border-bottom: none;
}

.protocol-name-badge {
  font-size: 0.8rem;
  font-weight: 600;
  color: #6b7280;
  white-space: nowrap;
  flex-shrink: 0;
  text-transform: capitalize;
  letter-spacing: 0.01em;
}

.protocol-function-text {
  font-size: 0.875rem;
  line-height: 1.55;
  color: #374151;
  flex: 1;
}

/* Success/Failure Section - Professional & Compact */
.era-success-failure {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid #e5e7eb;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.era-success,
.era-failure {
  font-size: 0.875rem;
  line-height: 1.6;
  color: #4b5563;
}

.era-success strong {
  color: #059669;
  font-weight: 600;
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  display: block;
}

.era-failure strong {
  color: #dc2626;
  font-weight: 600;
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  display: block;
}


/* Legacy table format (keep for backwards compatibility) */
.protocols-table {
  width: 100%;
  border-collapse: collapse;
}

.protocols-table thead tr {
  border-bottom: 2px solid rgba(0, 0, 0, 0.1);
}

.protocol-header {
  text-align: left;
  padding: 0.75rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: #52525b;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.protocol-row {
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: background-color 0.2s;
}

.protocol-row:hover {
  background-color: rgba(0, 0, 0, 0.02);
}

.protocol-row:last-child {
  border-bottom: none;
}

.protocol-name-cell {
  padding: 0.85rem;
  width: 12%;
}

.protocol-name {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.protocol-subhead {
  font-size: 0.7rem;
  font-style: italic;
  color: #737373;
}

.protocol-data-cell {
  padding: 0.85rem;
  font-size: 0.85rem;
  line-height: 1.5;
  color: #1a1a1a;
  vertical-align: top;
}

.mechanism-cell {
  width: 28%;
}

.success-cell {
  width: 30%;
}

.failure-cell {
  width: 30%;
}

.event-protocols-badges {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.protocol-badge {
  font-size: 0.7rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  font-weight: 600;
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.event-year {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.event-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  color: var(--color-text);
}

.event-description {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  line-height: 1.7;
  color: var(--color-text-light);
}

/* ===== Outro Section ===== */
.outro-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  padding-bottom: calc(var(--timeline-height) + 2rem);
}

.outro-content h2 {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.outro-content p {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== Fixed Timeline ===== */
.timeline-fixed {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--timeline-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-top: 1px solid #e5e5e5;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0; /* Start hidden, fade in via GSAP */
  pointer-events: none;
}

/* visible class no longer needed - GSAP handles opacity */
.timeline-fixed.visible {
  pointer-events: auto;
}

.timeline-svg {
  width: 90%;
  max-width: 1200px;
  height: 180px; /* Increased for 5 protocol tracks */
}

/* ===== Year Axis ===== */
.year-tick line {
  stroke: #d4d4d4;
  stroke-width: 1;
}

.year-tick text {
  font-size: 0.75rem;
  fill: var(--color-text-light);
  font-weight: 500;
}

.year-tick.major line {
  stroke: #a3a3a3;
  stroke-width: 2;
}

.year-tick.major text {
  font-size: 0.85rem;
  fill: var(--color-text);
  font-weight: 600;
}

/* ===== Timeline Axis Line ===== */
.axis-line {
  stroke: #d4d4d4;
  stroke-width: 2;
  fill: none;
}

/* ===== Protocol Tracks ===== */
.protocol-track {
  stroke-width: 2;
  stroke-opacity: 0.3;
  fill: none;
}

.protocol-track.Inference { stroke: var(--color-inference); }
.protocol-track.Quality { stroke: var(--color-quality); }
.protocol-track.Engagement { stroke: var(--color-engagement); }
.protocol-track.Coordination { stroke: var(--color-coordination); }
.protocol-track.Preservation { stroke: var(--color-preservation); }

.protocol-label {
  font-size: 0.75rem;
  font-weight: 600;
  fill: var(--color-text-light);
}

/* ===== Event Dots on Timeline ===== */
.event-dot {
  opacity: 0;
  transform-origin: center;
  cursor: pointer;
}

.event-dot.visible {
  opacity: 1 !important; /* Force visible once added */
}

.event-dot circle {
  stroke: white;
  stroke-width: 2;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

/* Protocol-specific dot colors */
.event-dot.Inference circle { fill: var(--color-inference); }
.event-dot.Quality circle { fill: var(--color-quality); }
.event-dot.Engagement circle { fill: var(--color-engagement); }
.event-dot.Coordination circle { fill: var(--color-coordination); }
.event-dot.Preservation circle { fill: var(--color-preservation); }

/* Stressor dots are always red, regardless of protocol */
.event-dot.stressor-dot circle {
  fill: #ef4444 !important;
  stroke: #dc2626 !important;
  stroke-width: 2.5;
}

.event-dot:hover circle {
  r: 10;
}

.event-dot.stressor-dot:hover circle {
  fill: #dc2626 !important;
}

/* ===== Floating Dots (for morph animation) ===== */
#floating-dots {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 1001; /* Above timeline (which is 1000) */
}

.floating-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  /* Background color will be set by JavaScript based on protocol */
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  pointer-events: none;
}

/* ===== Mobile Responsive ===== */
@media (max-width: 768px) {
  .era-card {
    padding: 1.5rem;
    max-width: 100%;
  }

  .era-card .event-title {
    font-size: 1.5rem;
  }

  .era-overview {
    font-size: 0.95rem;
  }

  .era-substrate {
    font-size: 0.8rem;
  }

  .protocol-header {
    font-size: 0.75rem;
    padding: 0.75rem 0.5rem;
  }

  .protocol-name-cell,
  .protocol-data-cell {
    padding: 1rem 0.5rem;
    font-size: 0.85rem;
  }

  .protocol-name {
    font-size: 0.9rem;
  }

  .protocol-subhead {
    font-size: 0.7rem;
  }

  /* Simplified format mobile */
  .protocol-row-simple {
    grid-template-columns: 100px 1fr;
    gap: 1rem;
    padding: 0.4rem 0;
  }

  .protocol-name-badge {
    font-size: 0.75rem;
  }

  .protocol-function-text {
    font-size: 0.85rem;
  }

  .era-success-failure {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .era-success,
  .era-failure {
    font-size: 0.85rem;
  }

  .protocol-section-title {
    font-size: 0.7rem;
  }

  /* Allow horizontal scroll on very small screens */
  .protocol-details-container {
    -webkit-overflow-scrolling: touch;
  }

  .timeline-fixed {
    height: 100px;
  }

  .timeline-svg {
    width: 95%;
    height: 60px;
  }

  .year-tick text {
    font-size: 0.65rem;
  }
}

/* ===== ACT III: Individual Scene Sections ===== */
.outro-scene-section {
  position: relative;
  min-height: 100vh;
  background: var(--color-bg);
  transition: background 0.5s ease;
}

.outro-scene-section.dark-bg {
  background: #1a1a1a;
}

/* Individual scene styles - each scene is independent */
.scene-5, .scene-6, .scene-7, .scene-8, .scene-9, .scene-10,
.scene-vision-1, .scene-vision-2, .scene-vision-3, .scene-vision-4, .scene-vision-5,
.scene-metaphor-1, .scene-metaphor-2, .scene-metaphor-3 {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  opacity: 1;
  z-index: 10;
}

/* Scene 14 wrapper contains both transition and all alternative timeline events */
.scene-alternative-wrapper {
  position: relative;
  width: 100%;
}

/* Scene 14 transition moment (100vh only) */
.scene-alternative {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  opacity: 1;
  z-index: 10;
}

.scene-5 h2, .scene-6 h2, .scene-7 h2, .scene-8 h2, .scene-9 h2, .scene-10 h2, .scene-alternative h2,
.scene-vision-1 h2, .scene-vision-2 h2, .scene-vision-3 h2, .scene-vision-4 h2, .scene-vision-5 h2,
.scene-metaphor-1 h2, .scene-metaphor-2 h2, .scene-metaphor-3 h2,
.scene-phase-12 h2, .scene-phase-13 h2 {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  color: var(--color-text);
  line-height: 1.2;
  position: relative;
  z-index: 100;
}

.scene-5 p, .scene-6 p, .scene-7 p, .scene-8 p, .scene-9 p, .scene-10 p, .scene-alternative p,
.scene-vision-1 p, .scene-vision-2 p, .scene-vision-3 p, .scene-vision-4 p, .scene-vision-5 p,
.scene-metaphor-1 p, .scene-metaphor-2 p, .scene-metaphor-3 p,
.scene-phase-12 p, .scene-phase-13 p {
  font-size: clamp(1.1rem, 2.5vw, 1.8rem);
  color: var(--color-text-light);
  max-width: 800px;
  line-height: 1.6;
  position: relative;
  z-index: 100;
}

/* Timeline enlargement for Scene 5-7 */
.timeline-fixed.enlarged {
  height: 50vh !important;
  bottom: 0 !important;
  z-index: 1000 !important;
}

.timeline-fixed.enlarged .timeline-svg {
  height: calc(50vh - 40px) !important;
}

/* CSS animations with 3 iterations */
@keyframes pulse-protocol {
  0%, 100% {
    opacity: 0.6;
    transform: scale(1);
    filter: drop-shadow(0 0 0px transparent);
  }
  50% {
    opacity: 1;
    transform: scale(1.15);
    filter: drop-shadow(0 0 12px currentColor);
  }
}

@keyframes pulse-protocol-track {
  0%, 100% {
    stroke-opacity: 0.3;
    filter: drop-shadow(0 0 0px transparent);
  }
  50% {
    stroke-opacity: 0.8;
    filter: drop-shadow(0 0 8px currentColor);
  }
}

@keyframes pulse-event-dot {
  0%, 100% {
    r: 5;
    filter: drop-shadow(0 0 0px transparent);
  }
  50% {
    r: 6;
    filter: drop-shadow(0 0 4px currentColor);
  }
}

.protocol-label.pulsing {
  animation: pulse-protocol 1s ease-in-out 3;
  animation-fill-mode: forwards;
  animation-play-state: paused;
}

.protocol-label.pulsing.playing {
  animation-play-state: running;
}

.protocol-track.pulsing {
  animation: pulse-protocol-track 1s ease-in-out 3;
  animation-fill-mode: forwards;
  animation-play-state: paused;
}

.protocol-track.pulsing.playing {
  animation-play-state: running;
}

.event-dot.pulsing circle {
  animation: pulse-event-dot 1s ease-in-out 3;
  animation-fill-mode: forwards;
  animation-play-state: paused;
}

.event-dot.pulsing.playing circle {
  animation-play-state: running;
}

/* Era divider pulsing (3 iterations) */
@keyframes pulse-era-divider {
  0%, 100% {
    opacity: 0.4;
    stroke-width: 1.5;
  }
  50% {
    opacity: 0.7;
    stroke-width: 2;
  }
}

@keyframes pulse-era-label {
  0%, 100% {
    opacity: 0.8;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
}

.era-divider.pulsing {
  animation: pulse-era-divider 1s ease-in-out 3;
  animation-fill-mode: forwards;
  animation-play-state: paused;
}

.era-divider.pulsing.playing {
  animation-play-state: running;
}

.era-label.pulsing {
  animation: pulse-era-label 1s ease-in-out 3;
  animation-fill-mode: forwards;
  animation-play-state: paused;
}

.era-label.pulsing.playing {
  animation-play-state: running;
}

/* Shrink all dots during Scene 5 pulsing (stressor dots) and Scene 6 pulsing (all dots) */
.event-dot.shrunk circle {
  r: 3.5;
  transition: r 0.3s ease;
}

/* Stressor dot pulsing for Scene 7 (3 iterations) */
@keyframes pulse-stressor-dot {
  0%, 100% {
    r: 5;
    opacity: 1;
  }
  50% {
    r: 8;
    opacity: 0.75;
  }
}

.event-dot.stressor-dot.pulsing circle {
  animation: pulse-stressor-dot 1s ease-in-out 3;
  animation-fill-mode: forwards;
  animation-play-state: paused;
}

.event-dot.stressor-dot.pulsing.playing circle {
  animation-play-state: running;
}

/* Stressor dot emphasis (legacy - may not be used) */
.event-dot.stressor-dot.emphasized circle {
  r: 12;
  animation: pulse-stressor 1s infinite;
}

@keyframes pulse-stressor {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

/* Alternative timeline event dots - MUST start hidden like main timeline */
.alt-event-dot {
  opacity: 0;
  transform-origin: center;
  cursor: pointer;
}

.alt-event-dot.visible {
  opacity: 1 !important;
}

.alt-event-dot circle {
  stroke: white;
  stroke-width: 2;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

/* Protocol-specific colors for alternative timeline */
.alt-event-dot.Inference circle { fill: var(--color-inference); }
.alt-event-dot.Quality circle { fill: var(--color-quality); }
.alt-event-dot.Engagement circle { fill: var(--color-engagement); }
.alt-event-dot.Coordination circle { fill: var(--color-coordination); }
.alt-event-dot.Preservation circle { fill: var(--color-preservation); }

.alt-event-dot:hover circle {
  r: 10;
}

/* System-based glows ONLY for founding events (1950, 1980, 2017) */
.alt-event-dot[data-founding-event="true"][data-system="institutional"] circle {
  filter: drop-shadow(0 0 6px rgba(59, 130, 246, 0.8)) drop-shadow(0 0 10px rgba(59, 130, 246, 0.5));
}

.alt-event-dot[data-founding-event="true"][data-system="corporate"] circle {
  filter: drop-shadow(0 0 6px rgba(239, 68, 68, 0.8)) drop-shadow(0 0 10px rgba(239, 68, 68, 0.5));
}

.alt-event-dot[data-founding-event="true"][data-system="benefactor"] circle {
  filter: drop-shadow(0 0 6px rgba(16, 185, 129, 0.8)) drop-shadow(0 0 10px rgba(16, 185, 129, 0.5));
}

/* No glow for pluralist/other system dots (not founding events) */

.timeline-fixed.stress-mode {
  background: linear-gradient(to top, rgba(255, 255, 255, 0.95), rgba(254, 242, 242, 0.95));
}

/* Floating text for scenes 8-9 - BACKGROUND LAYER */
#floating-stressor-text,
#floating-achievement-text {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1; /* Behind scene text (which is z-index: 100) */
  overflow: hidden;
}

/* Background overlay for depth */
#floating-stressor-text::before,
#floating-achievement-text::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, transparent 0%, rgba(250, 250, 250, 0.6) 100%);
  z-index: 1;
  pointer-events: none;
}

.floating-text-item {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  padding: 1rem 1.5rem;
  border-radius: 8px;
  max-width: 400px;
  backdrop-filter: blur(4px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  font-weight: 500;
  line-height: 1.5;
  z-index: 1; /* Same as parent container, behind h2/p which are z-index: 100 */
}

.floating-text-item.stressor {
  background: rgba(254, 242, 242, 0.85);
  border: 1px solid rgba(220, 38, 38, 0.3);
  color: #991b1b;
}

.floating-text-item .stressor-year {
  display: inline-block;
  font-size: 0.75em;
  font-weight: 700;
  color: #dc2626;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.floating-text-item.achievement {
  background: rgba(240, 253, 244, 0.85);
  border: 1px solid rgba(5, 150, 105, 0.3);
  color: #14532d;
}

.floating-text-item .achievement-year {
  display: inline-block;
  font-size: 0.75em;
  font-weight: 700;
  color: #059669;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

/* Duplicate CSS removed - see line 673 for systems-dots-container */

.multiplication-dot {
  position: fixed;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  opacity: 0;
  pointer-events: none;
  will-change: opacity, transform;
}

/* Alternative Fixed Timeline (same style as main timeline) */
.alt-timeline-fixed {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--timeline-height);
  background: rgba(255, 255, 255, 1); /* Fully opaque background */
  backdrop-filter: blur(10px);
  border-top: 1px solid #e5e5e5;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
}

.alt-timeline-fixed.visible {
  opacity: 1; /* Can be overridden by GSAP */
  pointer-events: auto;
}

/* Substrate Gap Section */
.substrate-gap-section {
  position: relative;
  min-height: 100vh;
  background: var(--color-bg);
}

.substrate-gap-content {
  position: relative;
  width: 100%;
  height: 100vh;
}

.gap-phase-1, .gap-phase-2, .gap-phase-3, .gap-phase-4, .gap-phase-5 {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  opacity: 0;
  width: 90%;
  max-width: 900px;
}

.gap-phase-1 h2, .gap-phase-2 h2, .gap-phase-3 h2, .gap-phase-4 h2, .gap-phase-5 h2 {
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

.gap-phase-1 p, .gap-phase-2 p, .gap-phase-3 p {
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  color: var(--color-text-light);
  line-height: 1.6;
}

.substrate-components {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.component-item {
  font-size: 0.85rem;
  padding: 0.65rem 0.85rem;
  background: white;
  border-radius: 4px;
  border: 1px solid #e5e7eb;
  color: #374151;
  font-weight: 500;
  text-align: center;
}

/* Vision & Substrate Demand Section */
.vision-demand-section {
  position: relative;
  min-height: 100vh;
  background: var(--color-bg);
}

.vision-demand-content {
  position: relative;
  width: 100%;
  height: 100vh;
}

.vision-demand-phase-1,
.vision-demand-phase-2,
.vision-demand-phase-3 {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  opacity: 0;
  width: 90%;
  max-width: 1000px;
}

.vision-demand-phase-1 h2,
.vision-demand-phase-2 h2,
.vision-demand-phase-3 h2 {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.2;
}

#convergence-dots-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 5;
}

.convergence-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  opacity: 0;
}

/* Substrate Technologies Card Section */
.substrate-card-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  padding: 2rem;
}

.substrate-card-container {
  width: 100%;
  max-width: 1200px;
}

.substrate-tech-card {
  border-left: 3px solid #3b82f6;
}

/* Final CTA Section */
.final-cta-section {
  position: relative;
  min-height: 100vh;
  background: var(--color-bg);
}

.final-cta-content {
  position: relative;
  width: 100%;
  height: 100vh;
}

.cta-phase-1,
.cta-phase-2 {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  opacity: 0;
  width: 90%;
  max-width: 900px;
}

.cta-phase-1 h2,
.cta-phase-2 h2 {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.2;
}

/* Vision Section (keep existing for old scenes if needed) */
.vision-section {
  position: relative;
  min-height: 100vh;
  background: #f5f5f5;
}

.vision-content {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
}





/* Timeline background shift for stress scene */
.timeline-svg.stress-background {
  background: linear-gradient(to top, transparent, rgba(254, 226, 226, 0.3));
}

/* Convergence center dot */
.convergence-dot {
  /* GSAP controls all animation - no CSS animation */
  position: fixed;
  border-radius: 50%;
  z-index: 1500;
  pointer-events: none;
}

/* Additional convergence dots - NO animation, controlled by GSAP */
.additional-convergence-dot {
  animation: none !important;
}

@keyframes pulse-convergence {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0;  /* Changed to 0 - only show when explicitly enabled */
    box-shadow: 0 0 30px rgba(37, 99, 235, 0.8);
  }
  50% {
    transform: translate(-50%, -50%) scale(1.4);
    opacity: 0;  /* Changed to 0 */
    box-shadow: 0 0 50px rgba(37, 99, 235, 1);
  }
}

/* Timeline Overlay Text - Fixed Position Over Timeline */
.timeline-overlay-text {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  opacity: 0;
  z-index: 1500; /* Above timeline (1000) and floating dots (1001) */
  pointer-events: none;
  width: 90%;
  max-width: 1000px;
}

.timeline-overlay-text h2 {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.2;
  text-shadow: 0 2px 10px rgba(255, 255, 255, 0.8);
}

/* Mobile adjustments for Act III */
@media (max-width: 768px) {
  .scene-5 h2, .scene-6 h2, .scene-7 h2, .scene-8 h2, .scene-9 h2, .scene-10 h2, .scene-alternative h2,
  .scene-vision-1 h2, .scene-vision-2 h2, .scene-vision-3 h2, .scene-vision-4 h2, .scene-vision-5 h2,
  .scene-metaphor-1 h2, .scene-metaphor-2 h2, .scene-metaphor-3 h2,
  .scene-phase-12 h2, .scene-phase-13 h2 {
    font-size: clamp(1.5rem, 6vw, 2.5rem);
  }

  .scene-5 p, .scene-6 p, .scene-7 p, .scene-8 p, .scene-9 p, .scene-10 p, .scene-alternative p,
  .scene-vision-1 p, .scene-vision-2 p, .scene-vision-3 p, .scene-vision-4 p, .scene-vision-5 p,
  .scene-metaphor-1 p, .scene-metaphor-2 p, .scene-metaphor-3 p,
  .scene-phase-12 p, .scene-phase-13 p {
    font-size: clamp(0.9rem, 3vw, 1.2rem);
  }

  .timeline-fixed.enlarged {
    height: 40vh;
  }

  .timeline-fixed.enlarged .timeline-svg {
    height: 35vh;
  }

  .substrate-components {
    grid-template-columns: repeat(2, 1fr);
  }

  .component-item {
    font-size: 0.8rem;
    padding: 0.5rem 0.65rem;
  }

  .gap-phase-1 h2, .gap-phase-2 h2, .gap-phase-3 h2, .gap-phase-4 h2, .gap-phase-5 h2 {
    font-size: clamp(1.5rem, 5vw, 2.25rem);
  }

  .work-ahead-grid {
    grid-template-columns: 1fr;
  }

  .work-item {
    font-size: 0.75rem;
  }
}

/* ===== Scroll Indicator ===== */
.scroll-indicator {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2000;
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.scroll-indicator.visible {
  opacity: 1;
}

.scroll-indicator.hidden {
  opacity: 0;
}

.scroll-indicator-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.scroll-indicator-mouse {
  width: 26px;
  height: 40px;
  border: 2px solid var(--color-text);
  border-radius: 13px;
  position: relative;
  opacity: 0.6;
}

.scroll-indicator-wheel {
  width: 4px;
  height: 8px;
  background: var(--color-text);
  border-radius: 2px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll-wheel 1.5s ease-in-out infinite;
}

@keyframes scroll-wheel {
  0%, 100% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  50% {
    opacity: 0.3;
    transform: translateX(-50%) translateY(8px);
  }
}

.scroll-indicator-text {
  font-size: 0.875rem;
  color: var(--color-text-light);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.scroll-indicator-arrow {
  color: var(--color-text-light);
  opacity: 0.6;
  animation: bounce-arrow 1.5s ease-in-out infinite;
}

@keyframes bounce-arrow {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.6;
  }
  50% {
    transform: translateY(8px);
    opacity: 0.3;
  }
}

/* ===== Scene Navigation Controls ===== */
.scene-navigation-controls {
  position: fixed;
  top: 2rem;
  right: 2rem;
  z-index: 2000;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.scene-navigation-controls.visible {
  opacity: 1;
  transform: translateY(0);
}

.scene-navigation-wrapper {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.75rem;
}

.jump-to-last-event {
  padding: 0.5rem 1rem;
  border-radius: 8px;
  background: rgba(20, 184, 166, 0.95);
  color: white;
  border: 1px solid rgba(20, 184, 166, 1);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.jump-to-last-event:hover {
  background: rgba(20, 184, 166, 1);
  box-shadow: 0 4px 12px rgba(20, 184, 166, 0.3);
  transform: translateY(-1px);
}

.jump-to-last-event:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(20, 184, 166, 0.2);
}

.jump-to-act-three {
  padding: 0.5rem 1rem;
  border-radius: 8px;
  background: rgba(37, 99, 235, 0.95);
  color: white;
  border: 1px solid rgba(37, 99, 235, 1);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.jump-to-act-three:hover {
  background: rgba(37, 99, 235, 1);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
  transform: translateY(-1px);
}

.jump-to-act-three:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.2);
}

.scene-label {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: 1px solid #e5e5e5;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  max-width: 300px;
  transition: opacity 0.3s ease;
}

.scene-label.updated {
  animation: label-pulse 0.3s ease;
}

@keyframes label-pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);
  }
}

.scene-label-text {
  font-size: 0.875rem;
  color: var(--color-text);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}

.scene-buttons {
  display: flex;
  gap: 0.5rem;
}

/* Next Scene Preview */
.next-scene-preview {
  background: rgba(20, 184, 166, 0.1);
  backdrop-filter: blur(10px);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: 1px solid rgba(20, 184, 166, 0.3);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  max-width: 300px;
}

.next-scene-text {
  font-size: 0.875rem;
  color: #0d9488;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}

/* Navigation Rows */
.nav-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.nav-row[style*="display: none"] {
  opacity: 0;
  transform: translateY(-10px);
}

.nav-row-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text);
  opacity: 0.7;
  min-width: 45px;
  text-align: right;
}

/* Card label styles (same as scene label) */
.card-label {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: 1px solid #e5e5e5;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  max-width: 300px;
  transition: opacity 0.3s ease;
}

.card-label.updated {
  animation: label-pulse 0.3s ease;
}

.card-label-text {
  font-size: 0.875rem;
  color: var(--color-text);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}

.card-buttons {
  display: flex;
  gap: 0.5rem;
}

.scene-nav-button {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid #e5e5e5;
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.scene-nav-button:hover:not(:disabled) {
  background: white;
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  transform: translateY(-1px);
}

.scene-nav-button:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.scene-nav-button:disabled,
.scene-nav-button.disabled {
  opacity: 0.3;
  cursor: not-allowed;
  background: rgba(255, 255, 255, 0.7);
}

.scene-nav-button svg {
  width: 20px;
  height: 20px;
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .scene-navigation-controls {
    top: 1rem;
    right: 1rem;
  }

  .scene-label,
  .card-label {
    max-width: 150px;
    padding: 0.4rem 0.75rem;
  }

  .scene-label-text,
  .card-label-text {
    font-size: 0.7rem;
  }

  .nav-row-label {
    font-size: 0.65rem;
    min-width: 38px;
  }

  .scene-nav-button {
    width: 36px;
    height: 36px;
  }

  .scroll-indicator {
    bottom: 60px;
  }

  .scroll-indicator-text {
    font-size: 0.75rem;
  }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }

  .scroll-indicator {
    display: none;
  }
}

/* Thousands Dots Container for Scene 17 */
#thousands-dots-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 5;
  overflow: hidden;
}

.thousands-convergence-dot {
  will-change: opacity, transform;
}