/* ===== CSS Custom Properties ===== */
:root {
  --color-primary: #1a1a2e;
  --color-secondary: #16213e;
  --color-accent: #e94560;
  --color-gold: #d4a843;
  --color-light: #f0f0f0;
  --color-text-light: #e8e8e8;
  --color-text-dark: #1a1a2e;
  --color-text-muted: #8a8a9a;
  --color-border: rgba(255,255,255,0.1);
  --color-border-light: rgba(0,0,0,0.08);

  --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
  --font-body: 'Source Serif 4', 'Georgia', serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-2xl: 8rem;

  --max-width: 1200px;
  --max-width-narrow: 800px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text-dark);
  background: var(--color-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg {
  display: block;
  max-width: 100%;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  font-weight: 700;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 0;
  transition: background 0.3s, padding 0.3s, box-shadow 0.3s;
}

.nav.scrolled {
  background: rgba(26, 26, 46, 0.95);
  backdrop-filter: blur(12px);
  padding: 0.6rem 0;
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--color-text-light);
  letter-spacing: 0.15em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color 0.2s;
  letter-spacing: 0.02em;
}

.nav-links a:hover {
  color: var(--color-text-light);
}

.nav-paper-link {
  background: var(--color-accent);
  color: white !important;
  padding: 0.5rem 1.2rem;
  border-radius: 6px;
  font-weight: 600 !important;
  transition: background 0.2s, transform 0.2s !important;
}

.nav-paper-link:hover {
  background: #d63a52;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-light);
  transition: 0.3s;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-primary);
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-figures {
  position: absolute;
  inset: 0;
  opacity: 0.12;
  perspective: 800px;
}

.hero-figure {
  position: absolute;
  width: 30px;
  height: 60px;
  transform-style: preserve-3d;
  transition: transform 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.hero-figure-body {
  width: 100%;
  height: 100%;
  background: var(--color-text-light);
  border-radius: 15px 15px 4px 4px;
  position: relative;
}

.hero-figure-head {
  width: 16px;
  height: 16px;
  background: var(--color-text-light);
  border-radius: 50%;
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: var(--space-md);
}

.hero-superlabel {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 4rem);
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-text-muted);
  max-width: 700px;
  margin: 0 auto var(--space-md);
  line-height: 1.8;
}

.hero-meta {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.hero-meta-sep {
  color: var(--color-accent);
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.8rem 2rem;
  border-radius: 8px;
  transition: all 0.2s;
  display: inline-block;
}

.btn-primary {
  background: var(--color-accent);
  color: white;
}

.btn-primary:hover {
  background: #d63a52;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(233, 69, 96, 0.3);
}

.btn-secondary {
  background: rgba(255,255,255,0.08);
  color: var(--color-text-light);
  border: 1px solid rgba(255,255,255,0.15);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.15);
  transform: translateY(-2px);
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.scroll-arrow {
  width: 24px;
  height: 24px;
  border-right: 2px solid var(--color-text-muted);
  border-bottom: 2px solid var(--color-text-muted);
  transform: rotate(45deg);
  animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translateY(0); opacity: 0.6; }
  50% { transform: rotate(45deg) translateY(8px); opacity: 1; }
}

/* ===== Sections ===== */
.section {
  padding: var(--space-2xl) 0;
}

.section-dark {
  background: var(--color-primary);
  color: var(--color-text-light);
}

.section-light {
  background: var(--color-light);
  color: var(--color-text-dark);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container.narrow {
  max-width: var(--max-width-narrow);
}

.section-header {
  margin-bottom: var(--space-lg);
}

.section-label {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: var(--space-xs);
}

.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: -0.02em;
}

.section-intro {
  font-size: 1.15rem;
  max-width: 700px;
  margin-bottom: var(--space-lg);
  color: var(--color-text-muted);
}

.section-light .section-intro {
  color: #555;
}

/* ===== Two Column Layout ===== */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.col-text p {
  margin-bottom: var(--space-sm);
  font-size: 1.05rem;
}

.col-text p:last-child {
  margin-bottom: 0;
}

/* ===== Evidence Timeline ===== */
.evidence-timeline {
  position: relative;
  padding-left: 2rem;
}

.evidence-timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: rgba(255,255,255,0.15);
}

.timeline-item {
  position: relative;
  padding: 0 0 var(--space-md) 1.5rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -2rem;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-secondary);
  border: 2px solid var(--color-text-muted);
}

.timeline-item.active .timeline-dot {
  background: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: 0 0 12px rgba(233, 69, 96, 0.4);
}

.timeline-item h4 {
  font-size: 1rem;
  margin-bottom: 0.3rem;
  color: var(--color-text-light);
}

.timeline-item.active h4 {
  color: var(--color-accent);
}

.timeline-item p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.timeline-item::before {
  content: attr(data-year);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-muted);
  position: absolute;
  top: 7px;
  left: -6.5rem;
  text-align: right;
  width: 4rem;
  letter-spacing: 0.02em;
}

/* ===== Pipeline ===== */
.pipeline {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  margin-bottom: var(--space-lg);
}

.pipeline-step {
  flex: 1;
  max-width: 280px;
  text-align: center;
  padding: var(--space-md);
  background: rgba(0,0,0,0.15);
  border-radius: 12px;
  border: 1px solid var(--color-border-light);
  transition: transform 0.3s, box-shadow 0.3s;
}

.section-light .pipeline-step {
  background: white;
  border: 1px solid rgba(0,0,0,0.08);
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.pipeline-step:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.pipeline-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-sm);
  color: var(--color-accent);
}

.pipeline-step h3 {
  font-size: 1.4rem;
  margin-bottom: 0.3rem;
}

.pipeline-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.02em;
}

.section-light .pipeline-label {
  color: #888;
}

.pipeline-step p:last-child {
  font-size: 0.95rem;
}

.section-light .pipeline-step p:last-child {
  color: #555;
}

.pipeline-arrow {
  display: flex;
  align-items: center;
  padding-top: 3rem;
  color: var(--color-text-muted);
  width: 40px;
  flex-shrink: 0;
}

.section-light .pipeline-arrow {
  color: #bbb;
}

/* ===== Scenario Box ===== */
.scenario {
  background: rgba(233, 69, 96, 0.08);
  border-left: 3px solid var(--color-accent);
  padding: var(--space-md);
  border-radius: 0 8px 8px 0;
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.scenario-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--color-accent);
  margin-top: 2px;
}

.scenario p {
  font-size: 1rem;
  color: #555;
  font-style: italic;
}

/* ===== Stats Banner ===== */
.stats-banner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stat {
  text-align: center;
}

.stat-number {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-accent);
  display: block;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

/* ===== Stimuli Section ===== */
.stimuli-section {
  margin-bottom: var(--space-xl);
}

.stimuli-section h3 {
  font-size: 1.4rem;
  margin-bottom: var(--space-sm);
}

.stimuli-section > p {
  color: var(--color-text-muted);
  max-width: 700px;
  margin-bottom: var(--space-md);
}

.stimuli-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.stimulus-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.3s;
}

.stimulus-card:hover {
  border-color: rgba(255,255,255,0.2);
}

.stimulus-visual {
  padding: var(--space-md);
  display: flex;
  justify-content: center;
  background: rgba(255,255,255,0.02);
}

.stimulus-svg {
  width: 100%;
  max-width: 200px;
  height: auto;
  color: var(--color-text-muted);
}

.stimulus-info {
  padding: var(--space-sm) var(--space-md);
}

.stimulus-info strong {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  display: block;
  margin-bottom: 0.3rem;
}

.stimulus-info p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* ===== Paradigm Cards ===== */
.paradigm-cards h3 {
  font-size: 1.4rem;
  margin-bottom: var(--space-md);
}

.paradigm-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.paradigm-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: var(--space-md);
  transition: border-color 0.3s, transform 0.3s;
}

.paradigm-card:hover {
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.paradigm-number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.paradigm-card h4 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.paradigm-question {
  font-style: italic;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
  font-size: 0.95rem;
}

.paradigm-desc p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.paradigm-tag {
  display: inline-block;
  margin-top: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  padding: 0.3rem 0.8rem;
  background: rgba(233, 69, 96, 0.15);
  color: var(--color-accent);
  border-radius: 20px;
}

/* ===== Finding Cards ===== */
.finding-card {
  background: white;
  border-radius: 16px;
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  box-shadow: 0 2px 20px rgba(0,0,0,0.04);
  border: 1px solid rgba(0,0,0,0.06);
}

.finding-card:last-of-type {
  margin-bottom: var(--space-lg);
}

.finding-number {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.finding-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
  color: var(--color-text-dark);
}

.finding-summary {
  font-size: 1.05rem;
  color: #555;
  max-width: 800px;
  margin-bottom: var(--space-md);
}

.chart-container {
  margin-top: var(--space-md);
}

.chart-caption {
  font-size: 0.85rem;
  color: #888;
  margin-top: var(--space-sm);
  line-height: 1.5;
  font-style: italic;
}

.chart-title {
  font-size: 1rem;
  margin-bottom: var(--space-md);
  color: var(--color-text-dark);
}

.chart-note {
  font-size: 0.9rem;
  color: #666;
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid rgba(0,0,0,0.06);
}

.data-highlight {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--color-accent);
}

.data-sm {
  font-family: var(--font-mono);
  font-size: 0.8em;
  color: #888;
}

/* ===== Attention Chart ===== */
.attention-comparison {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.attention-pair {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-sm);
  align-items: center;
}

.attention-label-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 500;
  grid-column: 1 / -1;
  margin-bottom: -0.3rem;
}

.attn-label-vs {
  font-size: 0.7rem;
  color: #aaa;
  font-weight: 400;
}

.attention-bar-wrapper {
  height: 32px;
  background: rgba(0,0,0,0.04);
  border-radius: 6px;
  position: relative;
  overflow: hidden;
}

.attention-bar {
  height: 100%;
  width: var(--bar-width);
  background: linear-gradient(90deg, var(--color-accent), #f06292);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 0.8rem;
  min-width: 60px;
  transition: width 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.attention-bar.highlight {
  background: linear-gradient(90deg, var(--color-accent), #c0392b);
}

.attention-bar.nonsig {
  background: rgba(0,0,0,0.1);
}

.attention-value {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: white;
}

.attention-bar.nonsig .attention-value {
  color: #888;
}

.attention-sig {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #888;
  white-space: nowrap;
}

.attention-sig.ns {
  color: #bbb;
}

.attention-pair.muted {
  opacity: 0.7;
}

/* ===== Bar Chart ===== */
.bar-chart {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.bar-group {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-sm);
  align-items: center;
}

.bar-label {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 500;
  text-align: right;
}

.bar-track {
  height: 36px;
  background: rgba(0,0,0,0.04);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}

.bar-fill {
  height: 100%;
  width: var(--bar-pct);
  border-radius: 6px;
  display: flex;
  align-items: center;
  padding-left: 0.8rem;
  transition: width 1s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.bar-fill.accent-gold {
  background: linear-gradient(90deg, var(--color-gold), #c99a30);
}

.bar-fill.accent-muted {
  background: linear-gradient(90deg, #7a8a9a, #6a7a8a);
}

.bar-fill.accent-dim {
  background: linear-gradient(90deg, #aaa, #999);
}

.bar-value {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: white;
}

/* ===== Lollipop Chart ===== */
.lollipop-chart {
  margin-bottom: var(--space-md);
}

.lollipop-row {
  display: grid;
  grid-template-columns: 120px 1fr 100px;
  gap: var(--space-sm);
  align-items: center;
  margin-bottom: 0.8rem;
}

.lollipop-label {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 500;
  text-align: right;
}

.lollipop-track {
  height: 3px;
  background: rgba(0,0,0,0.06);
  border-radius: 2px;
  position: relative;
}

.lollipop-line {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: var(--lollipop-pct);
  background: var(--color-accent);
  border-radius: 2px;
}

.lollipop-dot {
  position: absolute;
  left: var(--lollipop-pct);
  top: 50%;
  width: 14px;
  height: 14px;
  background: var(--color-accent);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  border: 3px solid white;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.lollipop-dot.muted {
  background: #7a8a9a;
}

.lollipop-dot.dim {
  background: #aaa;
}

.lollipop-value {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #555;
}

/* ===== Speed Sex Difference ===== */
.speed-sex-diff {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: rgba(0,0,0,0.02);
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.06);
}

.sex-block {
  text-align: center;
}

.sex-icon {
  font-size: 1.5rem;
  display: block;
  margin-bottom: 0.3rem;
}

.sex-value {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  display: block;
  margin-bottom: 0.2rem;
}

.sex-block.male .sex-value {
  color: var(--color-accent);
}

.sex-block.female .sex-value {
  color: var(--color-gold);
}

.sex-label {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  color: #888;
}

.sex-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  padding: 0 var(--space-sm);
}

.sex-diff {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent);
}

.sex-sig {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #aaa;
}

/* ===== Line Chart (Formidability) ===== */
.line-chart-container {
  margin-bottom: var(--space-md);
}

.line-chart {
  display: grid;
  grid-template-columns: 30px 1fr;
  grid-template-rows: 1fr auto auto;
  gap: 0;
}

.chart-y-axis {
  grid-row: 1;
  grid-column: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #888;
  text-align: right;
  padding-right: 8px;
}

.chart-area {
  grid-row: 1;
  grid-column: 2;
  aspect-ratio: 7/3;
  position: relative;
}

.chart-svg {
  width: 100%;
  height: 100%;
}

.chart-x-axis {
  grid-row: 2;
  grid-column: 2;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #888;
  padding-top: 8px;
}

.chart-x-label {
  grid-row: 3;
  grid-column: 2;
  text-align: center;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  color: #888;
  padding-top: 8px;
}

.chart-legend {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-sm);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  color: #666;
}

.legend-line {
  width: 24px;
  height: 3px;
  border-radius: 2px;
}

.legend-line.solid.accent {
  background: var(--color-accent);
}

.legend-line.dashed.gold {
  background: repeating-linear-gradient(
    90deg,
    var(--color-gold) 0px,
    var(--color-gold) 6px,
    transparent 6px,
    transparent 10px
  );
}

/* ===== Formidability Stats ===== */
.formidability-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(0,0,0,0.06);
}

.fstat {
  text-align: center;
}

.fstat-value {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-accent);
  display: block;
  margin-bottom: 0.3rem;
}

.fstat-label {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  color: #666;
  display: block;
  margin-bottom: 0.2rem;
  line-height: 1.3;
}

.fstat-sig {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #aaa;
}

/* ===== Sex Difference Grid ===== */
.sex-diff-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.sex-diff-card {
  padding: var(--space-md);
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.06);
}

.sex-diff-card h4 {
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
}

.male-card {
  background: rgba(233, 69, 96, 0.04);
  border-color: rgba(233, 69, 96, 0.15);
}

.male-card h4 {
  color: var(--color-accent);
}

.female-card {
  background: rgba(212, 168, 67, 0.04);
  border-color: rgba(212, 168, 67, 0.15);
}

.female-card h4 {
  color: var(--color-gold);
}

.sex-diff-card ul {
  list-style: none;
  padding: 0;
}

.sex-diff-card li {
  padding: 0.4rem 0;
  font-size: 0.95rem;
  color: #555;
  padding-left: 1rem;
  position: relative;
}

.sex-diff-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.85rem;
  width: 5px;
  height: 5px;
  border-radius: 50%;
}

.male-card li::before {
  background: var(--color-accent);
}

.female-card li::before {
  background: var(--color-gold);
}

/* ===== Scorecard ===== */
.scorecard {
  margin-top: var(--space-lg);
  background: white;
  border-radius: 16px;
  padding: var(--space-lg);
  box-shadow: 0 2px 20px rgba(0,0,0,0.04);
  border: 1px solid rgba(0,0,0,0.06);
}

.scorecard h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.scorecard-subtitle {
  font-size: 1rem;
  color: #666;
  margin-bottom: var(--space-md);
}

.score-highlight {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-gold);
  font-size: 1.1em;
}

.scorecard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.8rem;
}

.score-cell {
  padding: 0.8rem 1rem;
  border-radius: 8px;
  border: 1px solid rgba(0,0,0,0.06);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  transition: transform 0.2s;
}

.score-cell:hover {
  transform: translateY(-2px);
}

.score-cell.supported {
  background: rgba(212, 168, 67, 0.06);
  border-color: rgba(212, 168, 67, 0.2);
}

.score-cell.partly {
  background: rgba(212, 168, 67, 0.03);
  border-color: rgba(212, 168, 67, 0.15);
}

.score-cell.not-supported {
  background: rgba(0,0,0,0.02);
  border-color: rgba(0,0,0,0.06);
}

.score-id {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: #888;
}

.score-status {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
}

.score-cell.supported .score-status {
  color: var(--color-gold);
}

.score-cell.partly .score-status {
  color: #b8942e;
}

.score-cell.not-supported .score-status {
  color: #aaa;
}

.score-desc {
  font-size: 0.8rem;
  color: #888;
  line-height: 1.3;
}

/* ===== Meaning Section ===== */
.meaning-content p {
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
  color: var(--color-text-muted);
  line-height: 1.8;
}

.meaning-content strong {
  color: var(--color-text-light);
}

.meaning-content em {
  color: var(--color-gold);
  font-style: italic;
}

.next-steps {
  margin-top: var(--space-lg);
  padding: var(--space-md);
  background: rgba(233, 69, 96, 0.08);
  border-radius: 12px;
  border: 1px solid rgba(233, 69, 96, 0.15);
}

.next-steps h3 {
  font-size: 1.2rem;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.next-steps p {
  font-size: 1rem !important;
  margin-bottom: 0 !important;
}

/* ===== Footer ===== */
.footer {
  background: var(--color-secondary);
  color: var(--color-text-light);
  padding: var(--space-xl) 0 var(--space-md);
}

.team {
  margin-bottom: var(--space-xl);
}

.team h3 {
  font-size: 1.3rem;
  margin-bottom: var(--space-md);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}

.team-member {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.8rem;
}

.team-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(233, 69, 96, 0.2);
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(233, 69, 96, 0.3);
}

.team-info strong {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  display: block;
  margin-bottom: 0.2rem;
}

.team-info span {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.team-affiliation {
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
}

/* ===== Resources ===== */
.resources {
  margin-bottom: var(--space-lg);
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.resource-block h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.resource-block a {
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 500;
  transition: opacity 0.2s;
}

.resource-block a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

/* ===== Funding ===== */
.funding {
  margin-bottom: var(--space-lg);
}

.funding p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 700px;
}

.funding strong {
  color: var(--color-text-light);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-md);
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer-bottom a {
  color: var(--color-accent);
}

.footer-bottom a:hover {
  text-decoration: underline;
}

.footer-privacy {
  font-size: 0.72rem !important;
  opacity: 0.7;
  max-width: 60ch;
  margin: var(--space-sm) auto 0;
  line-height: 1.5;
}

/* ===== Scroll Reveal Animations ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.reveal.visible .pipeline-step,
.reveal.visible .stat,
.reveal.visible .paradigm-card,
.reveal.visible .score-cell {
  animation: fadeUp 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.reveal.visible .pipeline-step:nth-child(1) { animation-delay: 0.1s; }
.reveal.visible .pipeline-step:nth-child(3) { animation-delay: 0.2s; }
.reveal.visible .pipeline-step:nth-child(5) { animation-delay: 0.3s; }

.reveal.visible .stat:nth-child(1) { animation-delay: 0.1s; }
.reveal.visible .stat:nth-child(2) { animation-delay: 0.2s; }
.reveal.visible .stat:nth-child(3) { animation-delay: 0.3s; }
.reveal.visible .stat:nth-child(4) { animation-delay: 0.4s; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .two-col {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .timeline-item::before {
    display: none;
  }

  .formidability-stats {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(26, 26, 46, 0.98);
    flex-direction: column;
    padding: var(--space-md);
    gap: var(--space-sm);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .section {
    padding: var(--space-xl) 0;
  }

  .stats-banner {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  .stimuli-grid {
    grid-template-columns: 1fr;
  }

  .paradigm-grid {
    grid-template-columns: 1fr;
  }

  .pipeline {
    flex-direction: column;
    align-items: center;
  }

  .pipeline-arrow {
    transform: rotate(90deg);
    padding-top: 0;
    height: 40px;
  }

  .pipeline-step {
    max-width: 100%;
  }

  .sex-diff-grid {
    grid-template-columns: 1fr;
  }

  .speed-sex-diff {
    flex-direction: column;
  }

  .sex-divider {
    padding: var(--space-sm) 0;
  }

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

  .resources-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .scorecard-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }

  .finding-card {
    padding: var(--space-md);
  }

  .bar-group {
    grid-template-columns: 90px 1fr;
  }

  .lollipop-row {
    grid-template-columns: 90px 1fr 80px;
  }

  .chart-legend {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .stats-banner {
    grid-template-columns: 1fr 1fr;
  }

  .team-grid {
    grid-template-columns: 1fr;
  }

  .attention-pair {
    grid-template-columns: 1fr;
  }
}