/* ==========================================================================
   YOUR HAND IS THE MOUSE — Spatial Hand Tracking Installation Stylesheet
   Aesthetic: Near-Black Cosmos, Generative Kinetic Aesthetics, Digital Exhibition
   ========================================================================== */

:root {
  --bg-deep: #060608;
  --bg-surface: rgba(14, 15, 20, 0.65);
  --bg-surface-elevated: rgba(22, 24, 32, 0.85);

  --glass-border: rgba(255, 255, 255, 0.09);
  --glass-border-subtle: rgba(255, 255, 255, 0.05);
  --glass-border-active: rgba(255, 255, 255, 0.25);

  --text-primary: #f5f5f7;
  --text-secondary: #9a9aa2;
  --text-muted: #5e5e68;

  --accent-cyan: #38bdf8;
  --accent-emerald: #10b981;
  --accent-rose: #f43f5e;
  --accent-amber: #f59e0b;

  --font-display: 'Syne', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Space Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 9999px;

  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  user-select: none;
  -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   CANVAS & AMBIENT TEXTURE
   ========================================================================== */

.generative-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

.ambient-vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(circle at 50% 50%, transparent 40%, rgba(6, 6, 8, 0.7) 100%);
}

/* Glassmorphism primitives */
.glass-card {
  background: var(--bg-surface);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
  position: relative;
  overflow: hidden;
}

.glass-pill {
  background: rgba(14, 15, 20, 0.75);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  border-radius: var(--radius-full);
}

.glass-panel {
  background: rgba(14, 15, 20, 0.78);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.65);
  border-radius: var(--radius-md);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px 36px;
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-smooth);
}

.btn-primary {
  background: #f5f5f7;
  color: #060608;
  box-shadow: 0 0 35px rgba(255, 255, 255, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  background: #ffffff;
  box-shadow: 0 0 50px rgba(255, 255, 255, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

.btn-shine {
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transform: skewX(-20deg);
  animation: shineSweep 4.5s infinite;
}

@keyframes shineSweep {
  0%, 60% { left: -100%; }
  100% { left: 200%; }
}

kbd {
  display: inline-block;
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 4px;
  color: #fff;
}

.meta-dot {
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
}

/* ==========================================================================
   1. LANDING SCREEN
   ========================================================================== */

.screen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 2;
  transition: opacity var(--transition-slow), transform var(--transition-slow), visibility var(--transition-slow);
}

body.state-landing #landingScreen {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

body.state-landing #experienceUI {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

body.state-main #landingScreen {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: scale(0.97);
}

body.state-main #experienceUI {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.landing-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.landing-content {
  max-width: 920px;
  width: 100%;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.landing-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  letter-spacing: 0.22em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.landing-title {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 7.5vw, 6.8rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.035em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.title-glow {
  background: linear-gradient(180deg, #ffffff 30%, rgba(255, 255, 255, 0.45) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  text-shadow: 0 0 60px rgba(255, 255, 255, 0.2);
}

.landing-subheading {
  font-size: clamp(1.15rem, 2.2vw, 1.85rem);
  font-weight: 300;
  color: var(--text-secondary);
  letter-spacing: -0.01em;
  max-width: 620px;
}

.landing-cta-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  margin-top: 10px;
}

.privacy-note {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.landing-footer-hints {
  position: absolute;
  bottom: 34px;
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

/* ==========================================================================
   2. MAIN EXPERIENCE HUD & INTERLAYS
   ========================================================================== */

.experience-ui {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none; /* Allows mouse/hand interactions to pass through */
  transition: opacity var(--transition-slow);
}

.experience-ui * {
  pointer-events: auto;
}

/* TOP-LEFT BRAND TAG */
.hud-top-left {
  position: fixed;
  top: 28px;
  left: 32px;
  z-index: 10;
  padding: 8px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.hud-pill-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.8); }
}

.hud-pill-title {
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: 0.12em;
}

.hud-pill-sub {
  color: var(--text-secondary);
}

/* CENTER PROMPT: SHOW ME YOUR HAND */
.no-hand-prompt {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

.no-hand-prompt.is-visible {
  opacity: 1;
  visibility: visible;
}

.hand-scan-icon {
  color: rgba(255, 255, 255, 0.4);
  animation: floatHand 3s infinite ease-in-out;
}

@keyframes floatHand {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.prompt-text {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-primary);
}

.prompt-subtext {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* CONTEXTUAL TOAST: PINCH -> SCALE */
.gesture-toast {
  position: fixed;
  top: 90px;
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  z-index: 10;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--glass-border-active);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: #ffffff;
  box-shadow: 0 0 25px rgba(255, 255, 255, 0.15);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all var(--transition-fast);
}

.gesture-toast.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* STANDOUT MOMENT: TWO HANDS TYPOGRAPHIC CHOREOGRAPHY */
.two-hands-word-container {
  position: fixed;
  top: 42%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 8;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.two-hands-word-container.is-active {
  opacity: 1;
  visibility: visible;
}

.two-hands-word {
  font-family: var(--font-display);
  font-size: clamp(4rem, 10vw, 9.5rem);
  font-weight: 800;
  letter-spacing: 0.15em;
  color: #ffffff;
  line-height: 1;
  text-transform: uppercase;
  text-shadow: 0 0 80px rgba(255, 255, 255, 0.4);
  transition: letter-spacing 0.1s ease-out, transform 0.1s ease-out;
}

.two-hands-distance-bar {
  width: 320px;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.two-hands-distance-fill {
  height: 100%;
  background: #ffffff;
  box-shadow: 0 0 16px rgba(255, 255, 255, 0.8);
  transition: width 0.08s ease-out;
}

.two-hands-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
}

/* BOTTOM-LEFT EDUCATIONAL DATA READOUT [Toggle: D] */
.hud-bottom-left {
  position: fixed;
  bottom: 96px;
  left: 32px;
  z-index: 10;
  width: 280px;
  padding: 20px;
  transition: opacity var(--transition-smooth), transform var(--transition-smooth), visibility var(--transition-smooth);
}

.hud-bottom-left.is-hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  pointer-events: none;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.panel-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--text-secondary);
}

.telemetry-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.telemetry-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.telemetry-label {
  color: var(--text-muted);
}

.telemetry-value {
  color: var(--text-primary);
  font-weight: 700;
}

.telemetry-gesture-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-primary);
}

.telemetry-gesture-badge .badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
}

.telemetry-note {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* BOTTOM-RIGHT WEBCAM FEED + SKELETON [Toggle: C] */
.camera-panel {
  position: fixed;
  bottom: 96px;
  right: 32px;
  z-index: 10;
  width: 290px;
  padding: 14px;
  border-radius: var(--radius-md);
  transition: opacity var(--transition-smooth), transform var(--transition-smooth), visibility var(--transition-smooth);
}

.camera-panel.is-hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  pointer-events: none;
}

.camera-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.cam-indicator {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
}

.cam-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-emerald);
}

.cam-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.cam-hud-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border-subtle);
  border-radius: var(--radius-sm);
  padding: 3px 8px;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.72rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all var(--transition-fast);
}

.cam-hud-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.cam-hud-btn.active {
  background: rgba(56, 189, 248, 0.2);
  border-color: rgba(56, 189, 248, 0.4);
  color: var(--accent-cyan);
}

.camera-viewport {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #000;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

#webcamVideo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1); /* Horizontal mirror */
  display: block;
}

.skeleton-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform: scaleX(-1); /* Match mirrored video */
  pointer-events: none;
}

/* PROJECTOR HUD BAR */
.projector-hud {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  padding: 6px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hud-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.hud-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--glass-border);
  color: #fff;
}

.hud-btn.active {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  color: #fff;
}

/* ==========================================================================
   3. TEACHING OVERLAY MODAL [H]
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(6, 6, 8, 0.88);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 36px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

.modal-backdrop.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.modal-card {
  max-width: 960px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 44px;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: 28px;
  transform: translateY(20px) scale(0.98);
  transition: transform var(--transition-smooth);
}

.modal-backdrop.is-open .modal-card {
  transform: translateY(0) scale(1);
}

.modal-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-close-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.teaching-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.8vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

/* Pipeline diagram */
.pipeline-diagram {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 10px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border-subtle);
  border-radius: var(--radius-md);
}

.pipeline-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
}

.pipeline-node .node-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pipeline-node.highlight .node-icon {
  background: #ffffff;
  color: #060608;
  box-shadow: 0 0 24px rgba(255, 255, 255, 0.35);
}

.node-label {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-primary);
}

.node-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.35;
}

.pipeline-arrow {
  color: var(--text-muted);
  font-size: 1.3rem;
  text-align: center;
}

/* Teaching Manifesto */
.teaching-manifesto {
  padding: 24px 28px;
  background: rgba(255, 255, 255, 0.04);
  border-left: 3px solid #ffffff;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.manifesto-lead {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.2vw, 1.95rem);
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.02em;
}

.manifesto-follow {
  font-family: var(--font-sans);
  font-size: clamp(1.05rem, 1.7vw, 1.45rem);
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Hand Anatomy SVG Card */
.hand-anatomy-card {
  padding: 24px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border-subtle);
  border-radius: var(--radius-md);
}

.anatomy-title {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 18px;
}

.anatomy-content {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
  align-items: center;
}

.svg-hand-container {
  width: 100%;
  max-width: 280px;
}

.svg-hand-diagram {
  width: 100%;
  height: auto;
}

.joint-node {
  fill: rgba(255, 255, 255, 0.4);
  stroke: #ffffff;
  stroke-width: 1;
}

.main-node {
  fill: #ffffff;
}

.highlight-node {
  fill: var(--accent-cyan);
  stroke: #ffffff;
}

.emitter-node {
  fill: #ffffff;
  stroke: var(--accent-cyan);
  stroke-width: 2;
  filter: drop-shadow(0 0 6px #fff);
}

.bone-line {
  stroke: rgba(255, 255, 255, 0.2);
  stroke-width: 1.5;
}

.active-bone {
  stroke: rgba(255, 255, 255, 0.55);
}

.pinch-vector-line {
  stroke: var(--accent-cyan);
  stroke-width: 2;
  stroke-dasharray: 4 3;
}

.joint-label {
  fill: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.accent-text {
  fill: var(--accent-cyan);
  font-weight: 700;
}

.emitter-text {
  fill: #ffffff;
  font-weight: 700;
}

.pinch-vector-label {
  fill: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.1em;
}

.anatomy-explanations {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.explanation-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.item-tag {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-primary);
}

.explanation-item p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.modal-footer-bar {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ==========================================================================
   4. DIAGNOSTIC / ERROR MODAL
   ========================================================================== */

.error-card {
  max-width: 620px;
}

.error-heading {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.error-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.diagnostic-checklist ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.diagnostic-checklist li strong {
  color: var(--text-primary);
}

.error-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ==========================================================================
   RESPONSIVE DESIGN (1920x1080 and 1366x768)
   ========================================================================== */

@media (max-width: 1200px) {
  .anatomy-content {
    grid-template-columns: 1fr;
  }
  .pipeline-diagram {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .pipeline-arrow {
    transform: rotate(0deg);
  }
}

@media (max-width: 900px) {
  .hud-bottom-left {
    display: none;
  }
  .camera-panel {
    width: 220px;
    bottom: 84px;
    right: 20px;
  }
}