.item-list {
  margin-top: 3rem;
}

.item-row {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 2rem;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-faint);
}

.item-row img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.item-meta h4 {
  margin: 0;
  font-size: 0.95rem;
}

.item-meta p {
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.item-tags {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-violet);
}




.item-detail {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 2rem;
  margin-top: 1rem;
}

.item-detail img {
  width: 100%;
  border-radius: var(--radius-lg);
  margin-top: 6px;
  border: 10px solid #000000;
  transition: opacity 0.3s ease;
  max-width: 35em;
}

/* Right column becomes its own vertical grid */
.item-info-group {
  display: grid;
  /* gap: 1.5rem; */
}


.item-info {
  align-self: start;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.item-info h2 {
  margin-top: 0;
  padding-top: 0;
  word-wrap: break-word;
  overflow-wrap: break-word;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--heading-blue);
  font-size: 0.95rem;
  font-weight: 400;
}

.item-data h2 {
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.spec-list {
  margin-top: 2rem;
  border-top: 1px solid var(--border-faint);
}

.spec {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-faint);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

@media (max-width: 900px) {
  .item-detail {
    display: block;
  }
  
  .item-detail .item-info {
    margin-top: 1rem;
  }
}

@media (max-width: 800px) {
  .item-detail {
    gap: 1rem;
  }
}

@media (max-width: 750px) {
  .item-detail {
    display: block;
  }
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  /* gap: 1rem; */
  gap: 0.5rem;
}

.info-grid {
  background: linear-gradient(rgba(16, 19, 26, 0.85), rgba(16, 19, 26, 0.85)), var(--tex-panel) repeat;
  border: 1px solid #21211f;
}

 


.info-card {
    border: 1px solid #283a66;
    padding: 0.15em 0.5em;
    line-height: normal;
}

.info-card h3 {
  margin: 0 0 0.5rem 0;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 400;
}

.info-card p {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--accent-cyan);
}

@media (max-width: 600px) {
  .info-card {
    /* display: flex; */
    gap: 0.5rem;
    text-align: left;
  }
  
  .info-card h3 {
    margin: 0;
  }
  
  .info-card p {
    margin: 0;
  }
}




.text-panel h3 {
  margin-top: 0;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--heading-blue);
  font-size: 0.95rem;
  font-weight: 400;
}

.text-panel p {
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0.75rem 0 0 0;
}

.text-panel strong {
  color: var(--accent-cyan);
  /* font-weight: 600; */
  /* text-decoration: underline; */
          font-size: large;
}


.panel-acronym h3 {
  font-size: larger;
}

.panel-acronym p {
  word-spacing: 6px;
      margin-top: 0;
}

.item-detail .item-image {
  background: none;
  border: none;
  padding: 0;
  max-width: 35em;

  }
    /* .item-detail .item-image img:hover {
        transform: scale(1.02);
    } */
.item-detail .item-info {
  background: none;
  border: none;
  padding: 0;
}

@media (max-width: 750px) {
  .item-detail .item-image,
  .item-detail .item-info {
    margin-bottom: 1rem;
  }
}

/* Panel Variants */
/* [class*="panel-"] { */
  /* padding-top: 0.8em !important; */
/* } */

.dual-panel-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  /* margin-top: 1rem; */
  /* padding-top: 0; */
}

.triple-panel-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
  margin-bottom: 1rem;
}

@media (max-width: 900px) {
  .dual-panel-row {
    display: block;
  }
  
  .dual-panel-row .text-panel {
    margin-bottom: 1rem;
  }
  
  .triple-panel-row {
    display: block;
  }
  
  .triple-panel-row .text-panel {
    margin-bottom: 1rem;
  }
}


.triple-panel-row-60-40-40 {
  display: grid;
  grid-template-columns: 3fr 2fr 2fr;
  gap: 1rem;
  margin-top: 1rem;
  margin-bottom: 1rem;
}




.panel-info {
  /* padding: 1rem; */
  padding: 0.5rem;
  /* border-top: 2px solid #00d4ff !important; */
}

.panel-specs {
  padding: 1rem;
  /* border-top: 2px solid #ff00ff !important; */
}

.panel-acronym {
  /* padding: 1rem; */
  border-left: 3px solid var(--accent-cyan);
  /* border-top: 2px solid #00ffcc !important; */
  padding-top: 0.5em;
  padding-bottom: 0.5em;
}

section.text-panel.panel-accordion {
  padding: 0 1em;
}

/* Accordion Styles */
.analysis-accordion {
  margin-top: 0;
}

.analysis-accordion summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  user-select: none;
}

.analysis-accordion summary::-webkit-details-marker {
  display: none;
}

/* .analysis-accordion summary h3 { */
  /* margin: 0; */
  /* font-size: 1.1rem; */
  /* letter-spacing: 0.05em; */
/* } */

.accordion-icon {
  font-size: 0.8rem;
  transition: transform 0.3s ease;
  color: var(--accent-cyan);
}

.analysis-accordion[open] .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  /* margin-top: 1rem; */
  padding-top: 1rem;
  border-top: 1px solid var(--border-faint);
}

@media (min-width: 1200px) {
  .accordion-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
  }
}

.accordion-content .dual-panel-row {
  margin-top: 0;
}

.accordion-content .text-panel {
  border-left: none;
  padding: 1rem 1.5em;
  margin-bottom: 1em;
  border-left: 2px solid #0088ff !important;
}

.accordion-content .text-panel h3 {
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  color: var(--ink-base);
}

.accordion-content .text-panel p {
  margin: 0;
}


.panel-design {
  padding: 1rem;
  border-left: 3px solid var(--accent-violet);
  /* border-top: 2px solid #0014ff !important; */
}

.panel-tech {
  padding: 1rem;
  border-left: 3px solid var(--accent-blue);
  /* border-top: 2px solid #0088ff !important; */
}

/* VectorForce Energy Gauge Styles */
.energy-gauge-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 1.5rem 0;
}

.vf-gauge {
  display: block;
  margin: auto;
}

/* Background containment */
.vf-ring-bg {
  fill: none;
  stroke: #1a1e27;
  stroke-width: 10;
}

/* Energy arc */
.vf-ring-energy {
  fill: none;
  stroke: #ff9f1c;
  stroke-width: 10;
  stroke-linecap: round;

  /* Arc control */
  stroke-dasharray: 62 100;
  stroke-dashoffset: 25;

  filter: drop-shadow(0 0 6px rgba(255, 159, 28, 0.6));

  animation:
    vf-energy-pulse 6s ease-in-out infinite,
    vf-energy-drift 18s linear infinite;
}

/* Inner frame */
.vf-ring-inner {
  fill: none;
  stroke: #2a3040;
  stroke-width: 2;
}

/* Main numeric readout */
.vf-readout {
  font-family: "Orbitron", system-ui, sans-serif;
  font-size: 20px;
  fill: #e6e6eb;
  letter-spacing: 0.05em;
}

/* Status text */
.vf-subtext {
  font-family: system-ui, sans-serif;
  font-size: 9px;
  fill: #ff9f1c;
  letter-spacing: 0.2em;
}

/* Critical state modifier */
.vf-gauge[data-state="critical"] .vf-ring-energy {
  stroke: #ff3b3b;
  animation-duration: 3s;
}

/* Animations */
@keyframes vf-energy-pulse {
  0%, 100% {
    stroke-opacity: 0.75;
    filter: drop-shadow(0 0 4px rgba(255, 159, 28, 0.4));
  }
  50% {
    stroke-opacity: 1;
    filter: drop-shadow(0 0 10px rgba(255, 159, 28, 0.8));
  }
}

@keyframes vf-energy-drift {
  from {
    stroke-dashoffset: 25;
  }
  to {
    stroke-dashoffset: -75;
  }
}

/* Pause animations when offscreen */
.panel-energy.paused .vf-ring-energy {
  animation-play-state: paused;
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .vf-ring-energy {
    animation: none;
  }
}

/* Beam Visualization Styles */
.vf-beam {
  display: block;
  margin-top: 0.5rem;
}

/* Frame */
.vf-beam-frame {
  fill: none;
  stroke: rgba(255, 255, 255, 0.04);
  stroke-width: 1;
}

/* Emission origin */
.vf-beam-origin {
  fill: #ff9f1c;
  filter: drop-shadow(0 0 6px rgba(255, 159, 28, 0.6));
}

/* Core beam */
.vf-beam-core {
  stroke: #ffb347;
  stroke-width: 11px;
  stroke-linecap: round;

  stroke-dasharray: 34;
  animation: vf-beam-flow 12s linear infinite;
}

/* Halo beam */
.vf-beam-halo {
  stroke: rgba(255, 159, 28, 0.35);
  stroke-width: 24;
  stroke-linecap: round;
  filter: blur(2px);

  animation: vf-beam-breathe 6s ease-in-out infinite;
}

/* Particles */
.vf-beam-particles circle {
  fill: rgba(255, 200, 120, 0.7);
  animation: vf-particle-drift 10s linear infinite;
}

/* LED-style segments */
.vf-beam-segment {
  fill: #ff9f1c;
  stroke: rgba(255, 159, 28, 0.5);
  stroke-width: 1;
  filter: drop-shadow(0 0 8px rgba(255, 159, 28, 0.8));
  animation: segment-pulse 2s ease-in-out infinite;
}

.vf-beam-segment.segment-1 { animation-delay: 0s; }
.vf-beam-segment.segment-2 { animation-delay: 0.15s; }
.vf-beam-segment.segment-3 { animation-delay: 0.3s; }
.vf-beam-segment.segment-4 { animation-delay: 0.45s; }
.vf-beam-segment.segment-5 { animation-delay: 0.6s; }
.vf-beam-segment.segment-6 { animation-delay: 0.75s; }
.vf-beam-segment.segment-7 { animation-delay: 0.9s; }
.vf-beam-segment.segment-8 { animation-delay: 1.05s; }

/* Beam type modifiers */
.vf-beam[data-type="field"] .vf-beam-core {
  stroke-dasharray: 2 10;
}

.vf-beam[data-type="pulse"] .vf-beam-halo {
  animation-duration: 3s;
}

/* Beam Animations */
@keyframes segment-pulse {
  0%, 100% { 
    opacity: 0.5;
    fill: #ff9f1c;
  }
  50% { 
    opacity: 1;
    fill: #ffb347;
  }
}

@keyframes vf-beam-flow {
  from { stroke-dashoffset: 0; }
  to   { stroke-dashoffset: -48; }
}

@keyframes vf-beam-breathe {
  0%, 100% { opacity: 0.4; }
  50%      { opacity: 0.7; }
}

@keyframes vf-particle-drift {
  from { transform: translateX(0); opacity: 0.2; }
  to   { transform: translateX(20px); opacity: 0.8; }
}

/* Beam motion reduction */
@media (prefers-reduced-motion: reduce) {
  .vf-beam-core,
  .vf-beam-halo,
  .vf-beam-particles circle {
    animation: none;
  }
}

/* Instrument Panel Styles */
.instrument-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  /* padding: 1.5rem 0; */
}

.status-indicator {
  display: block;
  margin: 0 auto;
}

.status-label-text {
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.3em;
  font-weight: 600;
  text-align: center;
  margin-top: 0;
  padding-top: 0;
  color: var(--safety-color);
  text-transform: uppercase;
  text-shadow: 0 0 8px currentColor;
}

.panel-status .status-label-text {
  color: var(--ops-color);
}

.panel-domain .status-label-text {
  color: var(--domain-color);
}

/* SAFETY PANEL */
.safety-instrument {
  --safety-color: #00ff88;
}

.panel-safety[data-status="secure"] {
  --safety-color: #00d4ff;
  border-left-color: #00d4ff;
}

.panel-safety[data-status="stable"] {
  --safety-color: #00ff88;
  border-left-color: #00ff88;
}

.panel-safety[data-status="caution"] {
  --safety-color: #ffc107;
  border-left-color: #ffc107;
}

.panel-safety[data-status="unstable"] {
  --safety-color: #ff9f1c;
  border-left-color: #ff9f1c;
}

.panel-safety[data-status="critical"] {
  --safety-color: #ff3b3b;
  border-left-color: #ff3b3b;
}

.safety-ring-outer {
  fill: none;
  stroke: var(--safety-color);
  stroke-width: 2;
  opacity: 0.3;
}

.safety-ring-seg1,
.safety-ring-seg2,
.safety-ring-seg3 {
  fill: none;
  stroke: var(--safety-color);
  stroke-width: 6;
  stroke-linecap: round;
  filter: drop-shadow(0 0 4px var(--safety-color));
}

.safety-ring-seg1 {
  stroke-dasharray: 25 75;
  stroke-dashoffset: 0;
  animation: safety-drift-1 12s linear infinite;
}

.safety-ring-seg2 {
  stroke-dasharray: 25 75;
  stroke-dashoffset: 33;
  animation: safety-drift-2 12s linear infinite;
}

.safety-ring-seg3 {
  stroke-dasharray: 25 75;
  stroke-dashoffset: 66;
  animation: safety-drift-3 12s linear infinite;
}

.safety-shield {
  fill: none;
  stroke: var(--safety-color);
  stroke-width: 3;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 6px var(--safety-color));
}

.safety-check {
  stroke: var(--safety-color);
  stroke-width: 4;
  stroke-linecap: round;
}

.status-bar {
  position: relative;
  width: 100%;
  max-width: 200px;
  height: 20px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--safety-color);
  margin-top: 1rem;
  overflow: hidden;
}

.status-fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 92%;
  background: linear-gradient(90deg, var(--safety-color) 0%, rgba(0, 255, 136, 0.3) 100%);
  box-shadow: 0 0 10px var(--safety-color);
  animation: safety-pulse 3s ease-in-out infinite;
}

.status-percent {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--safety-color);
  font-weight: 600;
  letter-spacing: 0.1em;
}

@keyframes safety-drift-1 {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: -100; }
}

@keyframes safety-drift-2 {
  from { stroke-dashoffset: 33; }
  to { stroke-dashoffset: -67; }
}

@keyframes safety-drift-3 {
  from { stroke-dashoffset: 66; }
  to { stroke-dashoffset: -34; }
}

@keyframes safety-pulse {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 1; }
}

/* OPERATIONAL STATUS PANEL */
.ops-instrument {
  --ops-color: #00d4ff;
}

.panel-status[data-status="online"],
.panel-status[data-status="active"] {
  --ops-color: #00d4ff;
  border-left-color: #00d4ff;
}

.panel-status[data-status="degraded"] {
  --ops-color: #ffc107;
  border-left-color: #ffc107;
}

.panel-status[data-status="maintenance"] {
  --ops-color: #9d4edd;
  border-left-color: #9d4edd;
}

.panel-status[data-status="offline"] {
  --ops-color: #666;
  border-left-color: #666;
}

.ops-frame {
  fill: none;
  stroke: var(--ops-color);
  stroke-width: 2;
  opacity: 0.4;
}

.ops-bands .ops-band {
  fill: var(--ops-color);
  opacity: 0.6;
  animation: ops-flow 3s ease-in-out infinite;
}

.ops-band-2 {
  animation-delay: 0.2s;
}

.ops-band-3 {
  animation-delay: 0.4s;
}

.ops-band-4 {
  animation-delay: 0.6s;
}

.ops-power-ring {
  fill: none;
  stroke: var(--ops-color);
  stroke-width: 2;
  animation: ops-pulse-ring 2s ease-in-out infinite;
}

.ops-power-core {
  fill: var(--ops-color);
  filter: drop-shadow(0 0 8px var(--ops-color));
  animation: ops-pulse-core 2s ease-in-out infinite;
}

@keyframes ops-flow {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.9; }
}

@keyframes ops-pulse-ring {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

@keyframes ops-pulse-core {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 1; }
}

/* DOMAIN PANEL */
.domain-instrument {
  --domain-color: #0088ff;
}

.panel-domain {
  /* max-height: 17em; */
  overflow: hidden;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.panel-domain h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.panel-domain .instrument-panel {
  margin-top: 0;
  margin-bottom: 0;
}

.panel-domain[data-domain="local"] {
  --domain-color: #7fd4ff;
  border-left-color: #7fd4ff;
}

.panel-domain[data-domain="global"] {
  --domain-color: #0088ff;
  border-left-color: #0088ff;
}

.panel-domain[data-domain="orbital"] {
  --domain-color: #9d4edd;
  border-left-color: #9d4edd;
}

.panel-domain[data-domain="temporal"] {
  --domain-color: #00ffc8;
  border-left-color: #00ffc8;
}

.domain-globe,
.domain-ring {
  fill: none;
  stroke: var(--domain-color);
  stroke-width: 2;
  opacity: 0.6;
}

.domain-grid {
  stroke: var(--domain-color);
  stroke-width: 1;
  opacity: 0.3;
}

.domain-marker {
  fill: var(--domain-color);
  /* opacity: 0.8 !important; */
  /* animation: domain-pulse 7s ease-in-out infinite; */
}

.domain-marker:nth-child(2) {
  animation-delay: 0.3s;
}

.domain-marker:nth-child(3) {
  animation-delay: 0.6s;
}

.domain-sweep {
  stroke: #ff9f1c;
  stroke-width: 2;
  stroke-linecap: round;
  opacity: 0.7;
  transform-origin: 100px 100px;
  /* animation: domain-sweep 4s linear infinite; */
  filter: drop-shadow(0 0 4px var(--domain-color));
  display: none;
}

@keyframes domain-pulse {
  0%, 100% { opacity: 0.4; r: 3; }
  50% { opacity: 1; r: 4; }
}

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

/* Reduced motion for instrument panels */
@media (prefers-reduced-motion: reduce) {
  .safety-ring-seg1,
  .safety-ring-seg2,
  .safety-ring-seg3,
  .status-fill,
  .ops-band,
  .ops-power-ring,
  .ops-power-core,
  .domain-marker,
  .domain-sweep {
    animation: none;
  }
}

.panel-highlight {
  padding: 1rem;
  border-left: 3px solid var(--accent-yellow);
  /* border-top: 2px solid #ffcc00 !important; */
}

.panel-note {
  padding: 1rem;
  background: linear-gradient(rgba(20, 25, 35, 0.9), rgba(20, 25, 35, 0.9)), var(--tex-panel) repeat;
  /* border-top: 2px solid #666666 !important; */
}

.panel-warning {
  padding: 1rem;
  border-left: 3px solid var(--accent-orange);
  /* border-top: 2px solid #ff6600 !important; */
}

.panel-success {
  padding: 1rem;
  border-left: 3px solid var(--accent-green);
  /* border-top: 2px solid #00ff88 !important; */
}

.panel-data {
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  /* border-top: 2px solid #44ff44 !important; */
}

.panel-feature {
  padding: 1rem;
  border: 2px solid var(--accent-cyan);
  /* border-top: 2px solid #00ffff !important; */
}

/* Alternate Views Panel */
.view-thumbnails {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 0.75rem;
  margin-top: 0.75rem;
  max-width: 35em;
}

.view-thumb {
  background: var(--bg-overlay);
  border: 2px solid var(--border-blue);
  border-radius: var(--radius-sm);
  padding: 0;
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
  /* aspect-ratio: 1; */
}

.view-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.7;
  transition: opacity 0.3s;
}

.view-thumb:hover {
  border-color: var(--accent-cyan-bright);
  transform: translateY(-2px);
}

.view-thumb:hover img {
  opacity: 0.9;
}

.view-thumb.active {
  border-color: var(--heading-blue);
  background: rgba(127, 212, 255, 0.1);
}

.view-thumb.active img {
  opacity: 1;
}

.view-thumb:focus-visible {
  outline: 2px solid #7fd4ff;
  outline-offset: 2px;
}

/* Overlay System */
.item-overlay {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 2rem;
  margin-top: 1rem;
}

@media (max-width: 900px) {
  .item-overlay {
    display: block;
  }
  
  .item-overlay .item-info {
    margin-bottom: 1rem;
  }
}

@media (max-width: 800px) {
  .item-overlay {
    gap: 1rem;
  }
}

@media (max-width: 750px) {
  .item-overlay {
    display: block;
  }
}

.overlay-container {
  position: relative;
  display: inline-block;
}

.base-image {
  width: 100%;
  border-radius: var(--radius-lg);
  margin-top: 6px;
  border: 10px solid #000000;
  display: block;
}

.overlay-image {
  position: absolute;
  top: 6px;
  left: 0;
  width: 100%;
  border-radius: var(--radius-lg);
  transition: opacity 0.3s ease-in-out;
  pointer-events: none;
  border: 10px solid transparent;
}

.overlay-thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 0.75rem;
  margin-top: 0.75rem;
  max-width: 35em;
}

.overlay-thumb {
  background: var(--bg-overlay);
  border: 2px solid var(--border-blue);
  border-radius: var(--radius-sm);
  padding: 0;
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
}

.overlay-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.7;
  transition: opacity 0.3s;
}

.overlay-thumb:hover {
  border-color: var(--accent-cyan-bright);
  transform: translateY(-2px);
}

.overlay-thumb:hover img {
  opacity: 0.9;
}

.overlay-thumb.active {
  border-color: var(--heading-blue);
  background: rgba(127, 212, 255, 0.1);
}

.overlay-thumb.active img {
  opacity: 1;
}

.overlay-thumb:focus-visible {
  outline: 2px solid #7fd4ff;
  outline-offset: 2px;
}

/* Secondary Panel Grid */
.secondary-panels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 2rem;
  border-top: 1px solid rgba(127, 212, 255, 0.15);
  padding-top: 2rem;
}

.secondary-panels .artifact-panel {
  padding: 0.875rem;
  margin-bottom: 0;
  min-height: 180px;
}

.secondary-panels .artifact-panel h3 {
  margin-top: 0;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--heading-blue);
  font-size: 0.85rem;
  font-weight: 400;
  margin-bottom: 0.75rem;
}

/* Ensure system-control has proper spacing */
.secondary-panels + .system-control {
  margin-top: 2.5rem;
}

/* Mobile: Full-width stacked panels */
@media (max-width: 640px) {
  .secondary-panels {
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
  }
  
  .secondary-panels .artifact-panel {
    min-height: auto;
  }
  
  .view-thumbnails {
    grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
    gap: 0.5rem;
  }
}

/* Tablet: 2 columns */
@media (min-width: 641px) and (max-width: 1024px) {
  .secondary-panels {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
  }
}

/* Technical Schematic Panel */
.schematic-diagram {
  width: 100%;
  min-height: 400px;
  height: auto;
  display: block;
  background: linear-gradient(135deg, rgba(10, 15, 25, 0.8), rgba(20, 25, 35, 0.8));
  border: 1px solid rgba(127, 212, 255, 0.3);
  border-radius: var(--radius-sm);
  padding: 2rem;
  margin-top: 0.75rem;
}

/* Schematic regions - default state */
.schematic-region {
  transition: opacity 0.3s ease;
}

.schematic-region rect,
.schematic-region circle,
.schematic-region path,
.schematic-region line {
  transition: stroke 0.3s ease, fill 0.3s ease;
}

/* Callout labels */
.callout-label {
  fill: var(--heading-blue);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-anchor: middle;
  text-transform: uppercase;
}

.callout-detail {
  fill: rgba(127, 212, 255, 0.6);
  font-family: var(--font-mono);
  font-size: 13px;
  text-anchor: middle;
}

/* Callout lines - default state */
.schematic-callout line {
  transition: stroke-width 0.3s ease, opacity 0.3s ease;
}

/* Hover interaction: highlight callout and its region */
.schematic-callout:hover {
  cursor: pointer;
}

.schematic-callout:hover line {
  stroke-width: 2;
  opacity: 1;
  stroke-dasharray: none;
}

.schematic-callout:hover .callout-label {
  fill: var(--accent-cyan-bright);
  font-weight: 700;
}

/* Dim other regions when hovering a callout */
.schematic-diagram:has(.schematic-callout:hover) .schematic-region {
  opacity: 0.3;
}

/* Highlight the targeted region */
.schematic-diagram:has(.schematic-callout[data-target="barrel"]:hover) .schematic-region[data-region="barrel"],
.schematic-diagram:has(.schematic-callout[data-target="targeting"]:hover) .schematic-region[data-region="targeting"],
.schematic-diagram:has(.schematic-callout[data-target="core"]:hover) .schematic-region[data-region="core"],
.schematic-diagram:has(.schematic-callout[data-target="structure"]:hover) .schematic-region[data-region="structure"],
.schematic-diagram:has(.schematic-callout[data-target="dampeners"]:hover) .schematic-region[data-region="dampeners"] {
  opacity: 1;
}

/* Highlighted region gets cyan glow */
.schematic-diagram:has(.schematic-callout[data-target="barrel"]:hover) .schematic-region[data-region="barrel"] rect,
.schematic-diagram:has(.schematic-callout[data-target="barrel"]:hover) .schematic-region[data-region="barrel"] line,
.schematic-diagram:has(.schematic-callout[data-target="targeting"]:hover) .schematic-region[data-region="targeting"] circle,
.schematic-diagram:has(.schematic-callout[data-target="targeting"]:hover) .schematic-region[data-region="targeting"] line,
.schematic-diagram:has(.schematic-callout[data-target="core"]:hover) .schematic-region[data-region="core"] rect,
.schematic-diagram:has(.schematic-callout[data-target="core"]:hover) .schematic-region[data-region="core"] circle,
.schematic-diagram:has(.schematic-callout[data-target="structure"]:hover) .schematic-region[data-region="structure"] path,
.schematic-diagram:has(.schematic-callout[data-target="structure"]:hover) .schematic-region[data-region="structure"] line,
.schematic-diagram:has(.schematic-callout[data-target="dampeners"]:hover) .schematic-region[data-region="dampeners"] rect,
.schematic-diagram:has(.schematic-callout[data-target="dampeners"]:hover) .schematic-region[data-region="dampeners"] line {
  stroke: var(--accent-cyan-bright);
  stroke-width: 3;
  filter: drop-shadow(0 0 6px rgba(0, 255, 255, 0.6));
}

/* Mobile adjustments for schematic */
@media (max-width: 640px) {
  .schematic-diagram {
    padding: 0.5rem;
  }
  
  .callout-label {
    font-size: 9px;
  }
  
  .callout-detail {
    font-size: 7px;
  }
}

/* Operational States Panel */
.states-diagram {
  width: 100%;
  height: auto;
  min-height: 180px;
  background: linear-gradient(135deg, rgba(10, 15, 25, 0.6), rgba(20, 25, 35, 0.6));
  border: 1px solid rgba(127, 212, 255, 0.2);
  border-radius: var(--radius-sm);
  padding: 2rem 1rem;
  margin-top: 0.75rem;
  margin-bottom: 1rem;
}

/* State nodes - default */
.state-node {
  cursor: pointer;
  transition: all 0.3s ease;
}

.state-node polygon {
  transition: all 0.3s ease;
}

.state-label {
  fill: var(--heading-blue);
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-anchor: middle;
  text-transform: uppercase;
  pointer-events: none;
}

.state-icon {
  fill: rgba(127, 212, 255, 0.8);
  font-size: 42px;
  text-anchor: middle;
  pointer-events: none;
}

/* Hover state */
.state-node:hover polygon {
  fill: rgba(127, 212, 255, 0.2);
  stroke: var(--accent-cyan-bright);
  stroke-width: 3;
}

.state-node:hover .state-label {
  fill: var(--accent-cyan-bright);
}

/* Active state */
.state-node.active polygon {
  fill: rgba(255, 204, 0, 0.2);
  stroke: var(--accent-yellow);
  stroke-width: 3;
  filter: drop-shadow(0 0 8px rgba(255, 204, 0, 0.5));
}

.state-node.active .state-label {
  fill: var(--accent-yellow);
  font-weight: 700;
}

.state-node.active .state-icon {
  fill: var(--accent-yellow);
}

/* Connectors - highlight when adjacent to active state */
.state-connector {
  transition: opacity 0.3s ease;
}

/* State description area */
.state-description {
  position: relative;
  min-height: 80px;
  padding: 1.25rem;
  background: linear-gradient(135deg, rgba(10, 15, 25, 0.8), rgba(20, 25, 35, 0.8));
  border: 1px solid rgba(127, 212, 255, 0.3);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
}

.state-desc-content {
  display: none;
}

.state-desc-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.state-desc-content strong {
  color: #7fd4ff;
  display: block;
  margin-bottom: 0.25rem;
}

/* Mobile adjustments for states */
@media (max-width: 640px) {
  .states-diagram {
    overflow-x: auto;
  }
  
  .state-label {
    font-size: 9px;
  }
  
  .state-icon {
    font-size: 16px;
  }
  
  .state-description {
    font-size: 0.85rem;
  }
}