/* FlyBrain Snake — Laboratory Electrophysiology Workstation Stylesheet
 * Senior Laboratory Instrument UI Specification
 * Typography: Inter (UI) + JetBrains Mono (Telemetry/Tabular)
 */

:root {
  /* Chassis & Module Surfaces */
  --chassis-base: #080c12;
  --chassis-sub: #0c111a;
  --module-bg: #101722;
  --module-well: #06090e;
  --border-line: #1c2637;
  --border-active: #2b394f;
  --border-focus: #38bdf8;

  /* Calibrated Instrument Signals */
  --signal-green: #10b981;
  --signal-green-dim: rgba(16, 185, 129, 0.15);
  --signal-green-border: rgba(16, 185, 129, 0.4);

  --signal-amber: #f59e0b;
  --signal-amber-dim: rgba(245, 158, 11, 0.15);
  --signal-amber-border: rgba(245, 158, 11, 0.4);

  --signal-red: #ef4444;
  --signal-red-dim: rgba(239, 68, 68, 0.15);
  --signal-red-border: rgba(239, 68, 68, 0.4);

  --signal-cyan: #38bdf8;
  --signal-cyan-dim: rgba(56, 189, 248, 0.15);
  --signal-cyan-border: rgba(56, 189, 248, 0.4);

  --signal-purple: #a855f7;

  /* Typography Colors */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-dim: #475569;
  --text-muted: #334155;

  /* Fonts */
  --font-ui: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

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

body {
  background-color: var(--chassis-base);
  color: var(--text-primary);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.4;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ==========================================================================
   1. Masthead & Telemetry Rack
   ========================================================================== */

.app-header {
  background-color: var(--chassis-sub);
  border-bottom: 1px solid var(--border-line);
  padding: 0.85rem 1.75rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.rig-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--signal-cyan);
  background-color: var(--signal-cyan-dim);
  border: 1px solid var(--signal-cyan-border);
  padding: 0.25rem 0.55rem;
  border-radius: 2px;
  text-transform: uppercase;
}

.header-title-group {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.header-title {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.header-subtitle {
  font-size: 0.72rem;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
}

.header-metrics {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.metric-card {
  background-color: var(--module-bg);
  border: 1px solid var(--border-line);
  border-radius: 2px;
  padding: 0.35rem 0.85rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 96px;
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 0.15rem;
}

.metric-number {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

/* Status Indicator LED */
.status-indicator {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--signal-green);
  box-shadow: 0 0 6px var(--signal-green);
  animation: ledPulse 2s infinite ease-in-out;
}

@keyframes ledPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: transparent;
  color: var(--signal-green);
}

.badge-running {
  color: var(--signal-green);
}

.badge-paused {
  color: var(--signal-amber);
}

.badge-paused ~ .status-dot,
.metric-card:has(.badge-paused) .status-dot {
  background-color: var(--signal-amber);
  box-shadow: 0 0 6px var(--signal-amber);
}

.badge-over {
  color: var(--signal-red);
}

.badge-over ~ .status-dot,
.metric-card:has(.badge-over) .status-dot {
  background-color: var(--signal-red);
  box-shadow: 0 0 6px var(--signal-red);
  animation: none;
}

/* ==========================================================================
   2. Benchtop Control Console
   ========================================================================== */

.control-bar {
  background-color: var(--chassis-base);
  border-bottom: 1px solid var(--border-line);
  padding: 0.65rem 1.75rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.btn-group {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.4rem 0.85rem;
  border-radius: 2px;
  border: 1px solid var(--border-line);
  cursor: pointer;
  background-color: var(--module-bg);
  color: var(--text-secondary);
  transition: all 0.12s ease;
  user-select: none;
}

.btn:hover {
  background-color: #172130;
  color: var(--text-primary);
  border-color: var(--border-active);
}

.btn:active {
  background-color: #0d131b;
  transform: translateY(1px);
}

.btn-primary {
  background-color: rgba(16, 185, 129, 0.12);
  color: var(--signal-green);
  border-color: var(--signal-green-border);
}

.btn-primary:hover {
  background-color: rgba(16, 185, 129, 0.22);
  color: #34d399;
}

.btn-danger {
  color: var(--signal-red);
  border-color: rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background-color: rgba(239, 68, 68, 0.15);
  color: #f87171;
}

.btn-odor.active {
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--signal-amber);
  border-color: var(--signal-amber-border);
}

.speed-control {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.speed-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

#speedSlider {
  appearance: none;
  width: 130px;
  height: 4px;
  background: var(--border-line);
  border-radius: 1px;
  outline: none;
  cursor: pointer;
}

#speedSlider::-webkit-slider-thumb {
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 2px;
  background: var(--signal-cyan);
  border: 1px solid #ffffff;
  cursor: pointer;
  box-shadow: 0 0 4px rgba(56, 189, 248, 0.5);
}

.speed-value {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--signal-cyan);
  min-width: 60px;
}

.key-legend {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

/* ==========================================================================
   3. Main Rackmount Instrument Modules
   ========================================================================== */

.grid-container {
  flex: 1;
  padding: 1.5rem 1.75rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 1.25rem;
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
}

.card {
  background-color: var(--module-bg);
  border: 1px solid var(--border-line);
  border-radius: 2px;
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s ease;
  position: relative;
}

.card:hover {
  border-color: var(--border-active);
}

.card-featured {
  grid-column: span 1;
}

@media (min-width: 1080px) {
  .card-featured {
    grid-column: span 2;
  }
}

.card-header {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  margin-bottom: 0.65rem;
}

.card-header-row {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.card-title-group {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.card-channel {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--signal-cyan);
  text-transform: uppercase;
}

.card-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.card-tag {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

.card-tools {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.btn-xs {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.5rem;
  border-radius: 2px;
  background-color: var(--chassis-base);
  color: var(--text-secondary);
  border: 1px solid var(--border-line);
  cursor: pointer;
  transition: all 0.12s ease;
}

.btn-xs:hover {
  background-color: #172130;
  color: var(--text-primary);
  border-color: var(--border-active);
}

.btn-xs.active {
  background-color: var(--signal-cyan-dim);
  color: var(--signal-cyan);
  border-color: var(--signal-cyan-border);
}

/* Canvas Display Wells */
.canvas-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--module-well);
  border: 1px solid #131b26;
  border-radius: 2px;
  padding: 0.35rem;
  min-height: 360px;
  position: relative;
}

canvas {
  max-width: 100%;
  max-height: 100%;
  display: block;
}

.brain3d-wrapper {
  cursor: grab;
}

.brain3d-wrapper:active {
  cursor: grabbing;
}

/* Module Status Footers */
.card-footer {
  margin-top: 0.65rem;
  font-size: 0.7rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  line-height: 1.35;
  border-top: 1px solid #141c28;
  padding-top: 0.45rem;
}

.brain3d-footer {
  min-height: 2.75rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.25rem;
}

.brain3d-footer-status {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brain3d-footer-status .status-label {
  color: var(--text-dim);
  font-weight: 600;
  font-size: 0.66rem;
}

.brain3d-footer-status .status-value {
  font-weight: 500;
  color: #34d399;
}

.brain3d-footer-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.66rem;
}

.legend-regions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
}

.legend-meta {
  color: var(--text-dim);
}

/* ==========================================================================
   4. Footer
   ========================================================================== */

.app-footer {
  background-color: var(--chassis-sub);
  border-top: 1px solid var(--border-line);
  padding: 0.85rem 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
}

.footer-content {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.footer-rig {
  color: var(--signal-cyan);
  font-weight: 600;
}

.footer-build {
  color: var(--text-secondary);
}

/* ==========================================================================
   5. Responsive Rules
   ========================================================================== */

@media (max-width: 768px) {
  .app-header, .control-bar {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.85rem 1rem;
  }
  .grid-container {
    grid-template-columns: 1fr;
    padding: 1rem;
  }
  .header-metrics {
    width: 100%;
    justify-content: space-between;
  }
}