/* ==========================================================================
   QUANTUM LAB / CORE SCIENTIFIC & ALGORITHMIC WORKBENCH
   Module-Specific Visual Layouts: Canvases, Matrix Grids, DSP, Logic, Hex
   File: css/modules.css
   ========================================================================== */

/* Canvases & Simulation Viewports */
.canvas-viewport-container {
  position: relative;
  width: 100%;
  background: var(--bg-code);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.canvas-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
  z-index: 10;
}

.canvas-toolbar-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.simulation-canvas {
  width: 100%;
  height: 420px;
  display: block;
  cursor: crosshair;
}

.canvas-overlay-stats {
  position: absolute;
  bottom: 8px;
  left: 8px;
  background: rgba(10, 14, 23, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  pointer-events: none;
}

/* Linear Algebra Matrix Grid */
.matrix-container {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.matrix-bracket {
  width: 8px;
  border: 2px solid var(--text-secondary);
  align-self: stretch;
}
.matrix-bracket-left { border-right: none; border-radius: 4px 0 0 4px; }
.matrix-bracket-right { border-left: none; border-radius: 0 4px 4px 0; }

.matrix-grid {
  display: grid;
  gap: 4px;
}

.matrix-cell {
  width: 52px;
  height: 32px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  border-radius: var(--radius-xs);
}
.matrix-cell:focus {
  border-color: var(--accent-cyan);
}

/* Audio Synthesizer Piano Keys & Controls */
.synth-keyboard {
  display: flex;
  height: 120px;
  position: relative;
  user-select: none;
  background: #0b0f19;
  padding: 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.white-key {
  flex: 1;
  background: #e2e8f0;
  border: 1px solid #94a3b8;
  border-radius: 0 0 4px 4px;
  position: relative;
  z-index: 1;
  cursor: pointer;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 6px;
  color: #334155;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  transition: background 0.08s;
}

.white-key.active, .white-key:active {
  background: #38bdf8;
  color: #030712;
}

.black-key {
  width: 4.5%;
  height: 65%;
  background: #0f172a;
  border: 1px solid #000;
  border-radius: 0 0 3px 3px;
  position: absolute;
  z-index: 2;
  cursor: pointer;
  color: #94a3b8;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 4px;
  transition: background 0.08s;
}

.black-key.active, .black-key:active {
  background: #00d2ff;
  color: #030712;
}

/* Hex Editor View */
.hex-editor-container {
  display: flex;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  background: var(--bg-code);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px;
  overflow-x: auto;
  line-height: 1.6;
}

.hex-offsets {
  color: var(--text-muted);
  padding-right: 14px;
  border-right: 1px solid var(--border-subtle);
  user-select: none;
}

.hex-bytes {
  padding: 0 14px;
  color: var(--text-main);
  letter-spacing: 0.08em;
  white-space: pre;
}

.hex-ascii {
  padding-left: 14px;
  border-left: 1px solid var(--border-subtle);
  color: var(--accent-emerald);
  white-space: pre;
}

/* Digital Logic Simulator */
.logic-board {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.logic-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.logic-pin {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-fast);
}

.logic-pin-0 {
  background: var(--bg-primary);
  color: var(--text-muted);
  border: 1px solid var(--border-medium);
}

.logic-pin-1 {
  background: var(--accent-emerald);
  color: #030712;
  border: 1px solid var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald-glow);
}

.logic-gate-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  color: var(--accent-cyan);
}

/* Subnet Bitmask Visualizer */
.ip-bit-stream {
  display: flex;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  overflow-x: auto;
  padding: 8px 0;
}

.ip-octet-block {
  display: flex;
  gap: 2px;
}

.ip-bit {
  width: 14px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 2px;
  font-weight: 700;
}

.ip-bit-net {
  background: rgba(0, 210, 255, 0.2);
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan-dim);
}

.ip-bit-host {
  background: var(--bg-surface);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

/* Graph Node Canvas Controls */
.graph-control-strip {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

/* Color Engine Swatches */
.color-preview-box {
  width: 100%;
  height: 80px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(0,0,0,0.8);
}