:root {
  --bg: #0d1117;
  --bg-elevated: #161b22;
  --card-bg: #1c2128;
  --card-border: #30363d;
  --text: #e6edf3;
  --text-secondary: #8b949e;
  --text-tertiary: #6e7681;
  --accent: #58a6ff;
  --accent-muted: #1f6feb;
  --stress-low: #3fb950;
  --stress-mid: #d29922;
  --stress-high: #f85149;
  --highlight: #ffd43b;
}

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

html,
body {
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Roboto", sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

.container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 40px 20px;
}

.flow-viz-wrapper {
  display: flex;
  justify-content: center;
  margin: 30px auto;
}

#flowViz {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  min-height: 550px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  width: 100%;
  max-width: 1400px;
}

.story-header {
  max-width: 900px;
  margin: 0 auto 60px;
  text-align: center;
}

.chapter-label {
  display: inline-block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 20px;
  padding: 8px 16px;
  border: 1px solid var(--accent);
  border-radius: 20px;
  background: rgba(88, 166, 255, 0.05);
}

.story-header h1 {
  font-family: "Crimson Pro", serif;
  font-size: 4rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.1;
  letter-spacing: -0.5px;
}

.story-subtitle {
  font-family: "DM Sans", sans-serif;
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 30px;
  letter-spacing: 0.5px;
}

.narrative-intro {
  font-family: "Crimson Pro", serif;
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 750px;
  margin: 0 auto;
  font-style: italic;
}

.story-section {
  margin-bottom: 80px;
}

.overview-section {
  background: var(--bg-elevated);
  border-radius: 12px;
  padding: 60px 40px;
  margin-bottom: 60px;
}

.overview-section .chapter-label {
  margin-bottom: 30px;
}

.story-section > .chapter-label {
  display: block;
  text-align: center;
  margin-bottom: 30px;
}

.section-header {
  max-width: 900px;
  margin: 0 auto 60px;
  text-align: center;
}

.story-section:last-of-type .section-header {
  margin-bottom: 40px;
}

.section-header h2 {
  font-family: "Crimson Pro", serif;
  font-size: 2rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}

.section-description {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

.key-facts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
  margin-top: 40px;
}

.fact-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 32px 24px;
  text-align: center;
  transition: transform 0.3s ease, border-color 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}

.fact-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.fact-number {
  font-family: "Crimson Pro", serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
  line-height: 1;
}

.fact-label {
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text);
  margin-bottom: 8px;
}

.fact-description {
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--text-tertiary);
}

.visualization-container {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 30px;
  margin-bottom: 40px;
}

#mainViz {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  min-height: 750px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.guide-panel {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.guide-panel h3 {
  font-family: "Crimson Pro", serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: -0.2px;
}

.guide-item {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--card-border);
}

.guide-item:last-of-type {
  margin-bottom: 24px;
}

.guide-icon {
  flex-shrink: 0;
}

.guide-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.guide-text strong {
  font-size: 0.95rem;
  color: var(--text);
  font-weight: 600;
}

.guide-text span {
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

.guide-instruction {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text);
  padding: 16px;
  background: rgba(88, 166, 255, 0.1);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  font-weight: 500;
}

.guide-instruction strong {
  color: var(--accent);
  font-weight: 700;
}

.detail-panel {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) translateY(100%);
  width: 100%;
  max-width: 1400px;
  background: rgba(28, 33, 40, 0.95);
  border-top: 2px solid var(--card-border);
  border-left: 1px solid var(--card-border);
  border-right: 1px solid var(--card-border);
  border-radius: 12px 12px 0 0;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
  padding: 20px 24px;
  max-height: min(40vh, 400px);
  overflow-y: auto;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
    max-height 0.35s ease;
  z-index: 1000;
  backdrop-filter: blur(2px);
}

.detail-panel.expanded {
  max-height: min(50vh, 600px);
}

.detail-panel::-webkit-scrollbar {
  width: 8px;
}

.detail-panel::-webkit-scrollbar-track {
  background: var(--bg-elevated);
}

.detail-panel::-webkit-scrollbar-thumb {
  background: var(--card-border);
  border-radius: 4px;
}

.detail-panel::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

.detail-panel:not(.hidden) {
  transform: translateX(-50%) translateY(0);
}

.detail-panel.hidden {
  pointer-events: none;
  transform: translateX(-50%) translateY(100%);
}

.detail-panel-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.1);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  backdrop-filter: none;
}

.detail-panel-backdrop.visible {
  opacity: 1;
  pointer-events: all;
}

.detail-panel-backdrop-flow {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.1);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  backdrop-filter: none;
}

.detail-panel-backdrop-flow:not(.hidden) {
  opacity: 1;
  pointer-events: all;
}

.detail-panel-flow {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) translateY(100%);
  width: 100%;
  max-width: 1400px;
  background: rgba(28, 33, 40, 0.95);
  border-top: 2px solid var(--card-border);
  border-left: 1px solid var(--card-border);
  border-right: 1px solid var(--card-border);
  border-radius: 12px 12px 0 0;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
  padding: 20px 24px;
  max-height: min(40vh, 400px);
  overflow-y: auto;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
    max-height 0.35s ease;
  z-index: 1000;
  backdrop-filter: blur(2px);
}

.detail-panel-flow:not(.hidden) {
  transform: translateX(-50%) translateY(0);
}

.detail-panel-flow.hidden {
  pointer-events: none;
  transform: translateX(-50%) translateY(100%);
}

.visualization-container {
  position: relative;
}

.detail-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--card-border);
  gap: 12px;
}

.detail-close-btn,
.detail-expand-btn {
  background: transparent;
  border: 1px solid var(--card-border);
  border-radius: 6px;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}

.detail-close-btn:hover,
.detail-expand-btn:hover {
  background: var(--bg-elevated);
  border-color: var(--accent);
  color: var(--text);
}

.detail-label-small {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-tertiary);
  font-weight: 600;
  margin-bottom: 0;
}

.detail-panel h3 {
  font-family: "Crimson Pro", serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin: 8px 0 0 0;
  line-height: 1.3;
}

.detail-content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

@media (min-width: 1200px) {
  .detail-content-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 768px) {
  .detail-panel {
    max-width: 100%;
    left: 0;
    transform: translateY(100%);
    border-left: none;
    border-right: none;
    border-radius: 12px 12px 0 0;
    padding: 16px;
    max-height: min(50vh, 350px);
  }

  .detail-panel.expanded {
    max-height: min(65vh, 500px);
  }

  .detail-panel:not(.hidden) {
    transform: translateY(0);
  }

  .detail-panel.hidden {
    transform: translateY(100%);
  }

  .detail-content-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .detail-panel-header {
    flex-direction: column;
    gap: 12px;
  }

  .detail-close-btn {
    align-self: flex-end;
  }
}

.detail-stat {
  margin-bottom: 0;
}

.detail-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-tertiary);
  margin-bottom: 6px;
  font-weight: 600;
}

.detail-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.detail-range {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-bottom: 8px;
  font-style: italic;
}

.detail-subtext {
  font-size: 0.7rem;
  color: var(--text-tertiary);
  margin-top: 4px;
}

.key-insight {
  padding: 24px;
  background: rgba(88, 166, 255, 0.08);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text);
}

.key-insight strong {
  color: var(--accent);
  font-weight: 700;
}

.detail-bar-container {
  height: 6px;
  background: var(--bg-elevated);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}

.detail-bar {
  height: 100%;
  border-radius: 3px;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.insights-section {
  background: transparent;
  border-radius: 12px;
  padding: 80px 40px;
  margin-top: 100px;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
  max-width: 1400px;
  margin: 60px auto 0;
}

.insight-card {
  background: rgba(28, 33, 40, 0.6);
  border: 1px solid rgba(48, 54, 61, 0.5);
  border-radius: 16px;
  padding: 48px 40px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.insight-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(139, 148, 158, 0.3),
    transparent
  );
  opacity: 1;
  transition: opacity 0.4s ease;
}

.insight-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  border-color: rgba(139, 148, 158, 0.4);
  background: rgba(28, 33, 40, 0.8);
}

.insight-card:hover::before {
  opacity: 1;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(139, 148, 158, 0.5),
    transparent
  );
}

.insight-number {
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(139, 148, 158, 0.7);
  margin-bottom: 20px;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.insight-card h3 {
  font-family: "Crimson Pro", serif;
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -0.5px;
  line-height: 1.3;
}

.insight-subtitle {
  font-size: 0.9rem;
  color: rgba(139, 148, 158, 0.8);
  margin-bottom: 32px;
  font-style: normal;
  font-weight: 400;
  letter-spacing: 0.2px;
}

.insight-content {
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(230, 237, 243, 0.9);
  font-weight: 400;
  letter-spacing: 0.1px;
}

.insight-content p {
  margin-bottom: 1.2em;
}

.insight-content p:last-child {
  margin-bottom: 0;
}

.insight-content strong {
  color: var(--text);
  font-weight: 600;
}

.insight-content .take-action {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(139, 148, 158, 0.2);
  font-weight: 500;
  color: var(--text);
}

.insight-content .take-action:first-of-type {
  margin-top: 24px;
}

.insight-content .take-action::before {
  content: "→ ";
  color: rgba(139, 148, 158, 0.6);
  margin-right: 6px;
}

.story-footer {
  margin-top: 80px;
  padding-top: 40px;
  border-top: 1px solid var(--card-border);
  text-align: center;
}

.story-footer p {
  font-size: 0.9rem;
  color: var(--text-tertiary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

.axis line,
.axis path {
  stroke: var(--card-border);
  shape-rendering: crispEdges;
}

.axis text {
  fill: var(--text-secondary);
  font-size: 11px;
  font-weight: 500;
}

.axis-label {
  fill: var(--text);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.grid-line {
  stroke: rgba(255, 255, 255, 0.03);
  stroke-dasharray: 2, 4;
}

.job-bubble {
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  stroke: rgba(255, 255, 255, 0.2);
  stroke-width: 2;
}

.job-bubble:hover {
  stroke: var(--highlight);
  stroke-width: 3;
  filter: brightness(1.15);
}

.job-bubble.selected {
  stroke: var(--highlight);
  stroke-width: 3;
  filter: drop-shadow(0 0 16px rgba(255, 212, 59, 0.5));
}

.job-bubble.faded {
  opacity: 0.15;
  stroke-width: 1;
}

.individual-dot {
  fill: var(--text);
  opacity: 0.9;
  stroke: var(--bg);
  stroke-width: 2.5;
  transition: all 0.2s ease;
  cursor: pointer;
  pointer-events: all;
  filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.3));
}

.individual-dots {
  pointer-events: all;
}

.individual-dot:hover {
  opacity: 1;
  stroke: var(--highlight);
  stroke-width: 3;
  filter: drop-shadow(0 0 6px rgba(255, 212, 59, 0.8));
  r: 5;
}

.bubbles {
  pointer-events: all;
}

.job-bubble {
  pointer-events: all;
}

.job-label {
  fill: var(--text);
  font-size: 11px;
  font-weight: 600;
  pointer-events: none;
  text-shadow: 0 0 8px rgba(13, 17, 23, 0.9), 0 0 4px rgba(13, 17, 23, 0.9);
  opacity: 0.95;
}

.job-label.large {
  font-size: 13px;
  font-weight: 700;
}

.annotation-line {
  stroke: var(--accent);
  stroke-width: 1.5;
  stroke-dasharray: 4, 4;
  opacity: 0.3;
}

.annotations {
  pointer-events: none;
}

.annotation-text {
  fill: var(--accent);
  font-family: "DM Sans", sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.tooltip {
  position: absolute;
  background: var(--card-bg);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 16px;
  color: var(--text);
  font-size: 13px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: 1000;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
  max-width: 280px;
  line-height: 1.6;
}

.tooltip.visible {
  opacity: 1;
}

.tooltip-title {
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  font-size: 15px;
  border-bottom: 1px solid var(--card-border);
  padding-bottom: 8px;
}

.tooltip-stat {
  display: flex;
  justify-content: space-between;
  margin: 8px 0;
  font-size: 13px;
}

.tooltip-label {
  color: var(--text-secondary);
}
.tooltip-value {
  font-weight: 600;
  color: var(--text);
}

@media (max-width: 1400px) {
  .visualization-container {
    grid-template-columns: 1fr 340px;
  }
}

@media (max-width: 1100px) {
  .visualization-container {
    grid-template-columns: 1fr;
  }
  .sidebar {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .guide-panel,
  .detail-panel {
    flex: 1;
    min-width: 300px;
  }
}

@media (max-width: 1024px) {
  .key-facts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .container {
    padding: 20px 15px;
  }
  .story-header h1 {
    font-size: 2.5rem;
  }
  .story-subtitle {
    font-size: 1.1rem;
  }
  .narrative-intro {
    font-size: 1rem;
  }
  .section-header h2 {
    font-size: 1.5rem;
  }
  .overview-section {
    padding: 40px 20px;
  }
  .key-facts-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .fact-number {
    font-size: 2.5rem;
  }
  #mainViz {
    min-height: 500px;
  }
  #flowViz {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    min-height: 550px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    margin-top: 0;
    grid-column: 1 / 2;
  }
  .insights-section {
    padding: 60px 30px;
  }
  .insights-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .insight-card {
    padding: 36px 28px;
  }
  .sidebar {
    flex-direction: column;
  }
}

#dreamLab {
  position: relative;
  width: 100%;
  height: 700px;
  background: #0d1117;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.3);
  margin-top: 24px;
}

#dreamLab.deep-sleep {
  background: #050810;
}

.dl-layer-canvas,
.dl-zzz-canvas {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
}

.dl-axis line,
.dl-axis path {
  stroke: #30363d;
}
.dl-axis text {
  fill: #8b949e;
  font-size: 11px;
}
.dl-axis-label {
  fill: #cbd3eb;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
}

.dl-node {
  cursor: pointer;
}
.dl-dot {
  fill: #58a6ff;
  opacity: 0.85;
}
.dl-dot-halo {
  fill: none;
  stroke-width: 8;
  opacity: 0.2;
  pointer-events: none;
}
.dl-dot-ring {
  fill: none;
  stroke-width: 2;
  opacity: 0.6;
  pointer-events: none;
}

.dl-link {
  stroke: #30363d;
  stroke-width: 1;
  stroke-opacity: 0.15;
}
.dl-link.insomnia {
  stroke: #7c4dff;
}
.dl-link.apnea {
  stroke: #f85149;
}
.dl-link.narco {
  stroke: #ffd43b;
}
.dl-link.rls {
  stroke: #3fb950;
}
.dl-link.none {
  stroke: #8b949e;
}

.dl-density {
  fill: #58a6ff;
  opacity: 0.08;
  pointer-events: none;
}

.dl-tooltip {
  position: absolute;
  background: rgba(13, 17, 23, 0.95);
  border: 1px solid #30363d;
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 12px;
  color: #e6edf3;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  z-index: 1000;
}
.dl-tooltip.visible {
  opacity: 1;
}

.dreamlab-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  padding: 24px;
  background: rgba(22, 27, 34, 0.6);
  border-radius: 12px;
  margin: 20px 0;
  border: 1px solid #30363d;
}

.controls-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.controls-title {
  font-size: 14px;
  font-weight: 600;
  color: #cbd3eb;
  margin: 0 0 12px 0;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: 2px solid #30363d;
  padding-bottom: 8px;
}

.controls-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 140px;
}

.control-group label {
  font-size: 11px;
  color: #8b949e;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.control-group input[type="number"],
.control-group select {
  padding: 8px 12px;
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 6px;
  color: #e6edf3;
  font-size: 13px;
  min-width: 120px;
}

.control-group input[type="range"] {
  width: 100%;
  max-width: 200px;
  height: 6px;
  background: #30363d;
  border-radius: 3px;
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.control-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  background: #58a6ff;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  transition: all 0.2s;
}

.control-group input[type="range"]::-webkit-slider-thumb:hover {
  background: #79c0ff;
  transform: scale(1.1);
}

.control-group input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: #58a6ff;
  border-radius: 50%;
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  transition: all 0.2s;
}

.control-group input[type="range"]::-moz-range-thumb:hover {
  background: #79c0ff;
  transform: scale(1.1);
}

.range-value {
  display: inline-block;
  font-size: 12px;
  color: #58a6ff;
  font-weight: 600;
  margin-left: 8px;
}

.checkbox-group {
  flex-direction: row;
  align-items: center;
  min-width: auto;
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  text-transform: none;
  cursor: pointer;
  padding: 6px 12px;
  border-radius: 6px;
  transition: background 0.2s;
}

.checkbox-group label:hover {
  background: rgba(88, 166, 255, 0.1);
}

.checkbox-group input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: #58a6ff;
}

.checkbox-group span {
  font-size: 13px;
  color: #cbd3eb;
}

.bmi-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}
.dl-chip {
  display: inline-flex;
  align-items: center;
}
.dl-chip input[type="checkbox"] {
  display: none;
}

.dl-chip label {
  padding: 6px 14px;
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 16px;
  font-size: 12px;
  color: #8b949e;
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
}

.dl-chip input[type="checkbox"]:checked + label {
  background: #1f6feb;
  border-color: #58a6ff;
  color: #ffffff;
  font-weight: 500;
}

.dl-chip label:hover {
  border-color: #58a6ff;
  color: #cbd3eb;
}

.disorder-legend {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
}
.legend-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 8px currentColor;
}
.legend-item span {
  font-size: 13px;
  color: #cbd3eb;
}

@media (max-width: 1200px) {
  .dreamlab-controls {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  #dreamLab {
    height: 500px;
  }
  .controls-row {
    flex-direction: column;
  }
  .disorder-legend {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

.sankey-link-outline {
  pointer-events: none;
}

#flowViz .sankey-link {
  transition: stroke-opacity 0.25s ease;
}

.sankey-legend {
  max-width: 920px;
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 22px;
}

.sankey-legend-title {
  margin: 0;
  white-space: nowrap;
  font-family: "Crimson Pro", serif;
}

.sankey-legend .legend-inline {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: nowrap;
}

.sankey-legend .legend-section {
  flex: 0 0 auto;
}
.sankey-legend .legend-section svg {
  width: 240px;
  height: 54px;
}

@media (max-width: 900px) {
  .sankey-legend {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .sankey-legend .legend-inline {
    flex-wrap: wrap;
    gap: 14px;
  }
  .sankey-legend .legend-section svg {
    width: 220px;
  }
}

@media (max-width: 600px) {
  .sankey-legend {
    max-width: 100%;
  }
  .sankey-legend .legend-inline {
    flex-direction: column;
    align-items: flex-start;
  }
  .sankey-legend .legend-section svg {
    width: 100%;
  }
}

#flowViz .sankey-link-flow {
  pointer-events: none;
  will-change: stroke-dashoffset;
}
@media (prefers-reduced-motion: reduce) {
  #flowViz .sankey-link-flow {
    display: none;
  }
}