/**
 * GramFrame Component Styles - Military/Industrial Theme
 */

/* Container that replaces the config table */
.gram-frame-container {
  position: relative;
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: #1a1a1a;
}

/* Military-style table layout for proper resizing */
.gram-frame-table {
  display: table;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 50%, #0f0f0f 100%);
  border: 3px solid #444;
  border-radius: 8px;
  box-shadow: 
    inset 0 2px 4px rgba(255,255,255,0.1),
    inset 0 -2px 4px rgba(0,0,0,0.3),
    0 4px 8px rgba(0,0,0,0.5);
}

.gram-frame-row {
  display: table-row;
}

.gram-frame-row:nth-child(2) {
  height: 100%; /* Main panel row should stretch */
}

.gram-frame-cell {
  display: table-cell;
  vertical-align: middle;
  padding: 0;
}


/* Main panel with military frame */
.gram-frame-main-panel {
  padding: 15px;
  background: linear-gradient(135deg, #333 0%, #1a1a1a 50%, #000 100%);
  border: 3px solid #555;
  border-radius: 8px;
  box-shadow: 
    inset 0 3px 6px rgba(0,0,0,0.5),
    inset 0 -2px 4px rgba(255,255,255,0.1),
    0 0 10px rgba(0,0,0,0.7);
  position: relative;
}

.gram-frame-main-panel:before {
  content: '';
  position: absolute;
  top: 5px;
  left: 5px;
  right: 5px;
  bottom: 5px;
  border: 1px solid #666;
  border-radius: 4px;
  pointer-events: none;
}

/* SVG container for drawing the spectrogram and overlays */
.gram-frame-svg {
  display: block;
  width: 100%;
  height: auto;
  background: #000;
  border: 2px solid #333;
  border-radius: 4px;
  cursor: crosshair;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.8);
}

/* SVG image element for the spectrogram */
.gram-frame-image {
  /* Remove width/height CSS to allow SVG attributes to control positioning */
}

/* SVG axes styling - white on dark background */
.gram-frame-axis-line {
  stroke: #fff;
  stroke-width: 1;
  fill: none;
}

.gram-frame-axis-tick {
  stroke: #fff;
  stroke-width: 1;
}

.gram-frame-axis-tick-major {
  stroke: #fff;
  stroke-width: 1;
}

.gram-frame-axis-tick-minor {
  stroke: #fff;
  stroke-width: 1;
}

.gram-frame-axis-label {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  font-size: 12px;
  fill: #fff;
  dominant-baseline: central;
}

.gram-frame-axis-label-major {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  font-size: 10px;
  fill: #fff;
  dominant-baseline: central;
}




/* Military-style display panel */
.gram-frame-display-panel {
  padding: 10px;
  background: linear-gradient(180deg, #333 0%, #1a1a1a 50%, #000 100%);
  border-top: 2px solid #555;
}

.gram-frame-readout {
  flex: 0 1 auto;
  padding: 0;
  background: transparent;
}

/* Harmonics mode CSS removed - now using unified layout */

/* Harmonics layout container - two columns */

/* Left column for controls - 40% width */
.gram-frame-harmonics-controls {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 0 0 40%;
  max-width: 40%;
}

/* Top row in left column */
.gram-frame-harmonics-top-row {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

/* Right column for table - 60% width */
.gram-frame-harmonics-table-column {
  flex: 0 0 60%;
  max-width: 60%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* Make color picker more compact in harmonics mode */
.gram-frame-harmonics-mode .gram-frame-color-picker {
  margin: 0;
}

/* Harmonic panel layout - always visible in unified layout */

/* Military-style display windows */
.gram-frame-led {
  font-family: 'Courier New', monospace;
  background: linear-gradient(135deg, #1a1a1a 0%, #000 50%, #0a0a0a 100%);
  color: #00ff00; /* LED green */
  padding: 6px 0px;
  border: 2px solid #333;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  flex: 0 0 auto;
  min-width: 100px;
  text-align: center;
  box-shadow: 
    inset 0 2px 6px rgba(0,0,0,0.8),
    inset 0 -1px 2px rgba(255,255,255,0.05),
    0 2px 4px rgba(0,0,0,0.5);
  position: relative;
  font-size: 11px;
  height: fit-content;
}

.gram-frame-led:before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  right: 2px;
  bottom: 2px;
  border: 1px solid #444;
  border-radius: 2px;
  pointer-events: none;
}

/* LED label */
.gram-frame-led-label {
  font-size: 10px;
  color: #00ff00;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: bold;
}

/* LED value */
.gram-frame-led-value {
  font-size: 14px;
  font-weight: bold;
  text-shadow: 0 0 4px #00ff00;
}

/* Manual harmonic button */
.gram-frame-manual-button {
  padding: 6px 12px;
  background: linear-gradient(180deg, #6a6a6a 0%, #4a4a4a 50%, #2a2a2a 100%);
  color: #ddd;
  border: 2px solid #555;
  border-radius: 4px;
  cursor: pointer;
  font-weight: bold;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 
    inset 0 1px 2px rgba(255,255,255,0.2),
    inset 0 -1px 2px rgba(0,0,0,0.3),
    0 2px 4px rgba(0,0,0,0.3);
  transition: all 0.1s ease;
  min-width: 80px;
}

.gram-frame-manual-button:hover {
  background: linear-gradient(180deg, #7a7a7a 0%, #5a5a5a 50%, #3a3a3a 100%);
  box-shadow: 
    inset 0 1px 2px rgba(255,255,255,0.3),
    inset 0 -1px 2px rgba(0,0,0,0.4),
    0 3px 6px rgba(0,0,0,0.4);
}

.gram-frame-manual-button:active {
  transform: translateY(1px);
  box-shadow: 
    inset 0 2px 4px rgba(0,0,0,0.4),
    0 1px 2px rgba(0,0,0,0.2);
}

/* Color picker for harmonics */
.gram-frame-color-picker {
  position: absolute;
  top: 115px; /* Fixed position below cursor LEDs */
  margin-top: 0;
  padding: 8px;
  background: linear-gradient(135deg, #1a1a1a 0%, #000 50%, #0a0a0a 100%);
  border: 2px solid #333;
  border-radius: 4px;
  box-shadow: 
    inset 0 2px 6px rgba(0,0,0,0.8),
    inset 0 -1px 2px rgba(255,255,255,0.05),
    0 2px 4px rgba(0,0,0,0.5);
  max-width: 200px;
  flex-shrink: 0;
}

.gram-frame-color-picker-label {
  font-size: 10px;
  color: #00ff00;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: bold;
  text-align: center;
}

.gram-frame-color-palette {
  position: relative;
}

.gram-frame-color-canvas {
  width: 140px;
  max-width: 140px;
  height: 20px;
  border: 1px solid #555;
  border-radius: 2px;
  cursor: pointer;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.5);
}

.gram-frame-color-indicator {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 3px;
  height: 26px;
  background: #fff;
  border: 1px solid #000;
  border-radius: 1px;
  pointer-events: none;
  box-shadow: 0 0 2px rgba(0,0,0,0.8);
}

/* Analysis mode layout styles */
.gram-frame-analysis-layout {
  height: 100%;
}

.gram-frame-analysis-controls {
  align-self: flex-start;
}

.gram-frame-analysis-leds {
  /* Side-by-side LEDs container */
}

.gram-frame-analysis-leds .gram-frame-led {
  /* Ensure LEDs in the horizontal container are sized properly */
  font-size: 9px; /* Slightly smaller to fit side-by-side */
}

.gram-frame-analysis-leds .gram-frame-led-label {
  font-size: 8px; /* Smaller label text */
  color: #00ff00;
}

.gram-frame-analysis-markers {
  height: 100%;
}

/* Markers table styles */
.gram-frame-markers-container {
  padding: 8px;
  background: linear-gradient(135deg, #1a1a1a 0%, #000 50%, #0a0a0a 100%);
  border: 2px solid #333;
  border-radius: 4px;
  box-shadow: 
    inset 0 2px 6px rgba(0,0,0,0.8),
    inset 0 -1px 2px rgba(255,255,255,0.05),
    0 2px 4px rgba(0,0,0,0.5);
}

.gram-frame-markers-label {
  font-size: 10px;
  color: #00ff00;
  margin: 0 0 8px 0;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: bold;
  text-align: center;
}

.gram-frame-markers-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 10px;
  color: #ccc;
  table-layout: fixed;
}

.gram-frame-markers-table th {
  background: #222;
  color: #00ff00;
  padding: 4px;
  text-align: center;
  border: 1px solid #444;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.gram-frame-markers-table td {
  padding: 4px;
  text-align: center;
  border: 1px solid #444;
  background: #1a1a1a;
}

.gram-frame-color-swatch {
  margin: 0 auto;
  display: block;
}

.gram-frame-marker-delete-btn {
  padding: 2px 6px;
  border-radius: 2px;
  transition: background-color 0.2s;
}

.gram-frame-marker-delete-btn:hover {
  background-color: #ff4444 !important;
  color: #fff !important;
}

/* Marker rendering styles */
.gram-frame-marker-line {
  opacity: 0.8;
}

.gram-frame-marker-point {
  opacity: 0.9;
}

.gram-frame-current-color {
  border: 1px solid #555;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.5);
}

/* Military-style mode selection header */
.gram-frame-mode-header {
  padding: 10px;
  background: linear-gradient(180deg, #444 0%, #2a2a2a 50%, #1a1a1a 100%);
  border-bottom: 2px solid #555;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  justify-content: flex-start;
}

.gram-frame-modes {
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
  align-items: stretch;
  flex: 0 0 auto;
  flex-shrink: 0;
}

/* Guidance panel */
.gram-frame-guidance {
  flex: 1;
  padding: 8px 12px;
  background: linear-gradient(135deg, #1a1a1a 0%, #000 50%, #0a0a0a 100%);
  border: 2px solid #333;
  border-radius: 4px;
  color: #ccc;
  font-size: 12px;
  line-height: 1.4;
  box-shadow: 
    inset 0 2px 6px rgba(0,0,0,0.8),
    inset 0 -1px 2px rgba(255,255,255,0.05),
    0 2px 4px rgba(0,0,0,0.5);
}

.gram-frame-guidance h4 {
  margin: 0 0 6px 0;
  font-size: 11px;
  color: #00ff00;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: bold;
}

.gram-frame-guidance p {
  margin: 0 0 4px 0;
}

/* Military-style metal buttons */
.gram-frame-mode-btn {
  padding: 8px 20px;
  background: linear-gradient(180deg, #6a6a6a 0%, #4a4a4a 50%, #2a2a2a 100%);
  color: #ddd;
  border: 2px solid #555;
  border-radius: 4px;
  cursor: pointer;
  font-weight: bold;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 
    inset 0 1px 2px rgba(255,255,255,0.2),
    inset 0 -1px 2px rgba(0,0,0,0.3),
    0 2px 4px rgba(0,0,0,0.3);
  transition: all 0.1s ease;
}

.gram-frame-mode-btn:hover {
  background: linear-gradient(180deg, #7a7a7a 0%, #5a5a5a 50%, #3a3a3a 100%);
  box-shadow: 
    inset 0 1px 2px rgba(255,255,255,0.3),
    inset 0 -1px 2px rgba(0,0,0,0.4),
    0 3px 6px rgba(0,0,0,0.4);
}

.gram-frame-mode-btn.active {
  background: linear-gradient(180deg, #4a6a4a 0%, #2a4a2a 50%, #1a2a1a 100%);
  color: #aaffaa;
  border-color: #4a8a4a;
  box-shadow: 
    inset 0 1px 2px rgba(0,0,0,0.3),
    inset 0 -1px 2px rgba(255,255,255,0.1),
    0 0 4px rgba(74, 138, 74, 0.3);
}

.gram-frame-mode-btn:active {
  transform: translateY(1px);
  box-shadow: 
    inset 0 2px 4px rgba(0,0,0,0.4),
    0 1px 2px rgba(0,0,0,0.2);
}

/* Rate input UI styles removed - backend functionality preserved */

/* SVG cursor styles removed - using CSS cursor only */

/* SVG Harmonic line styles */


.gram-frame-harmonic-line {
  stroke-width: 2;
  fill: none;
  pointer-events: none;
  stroke-linecap: round;
}


.gram-frame-harmonic-number {
  font-family: Arial, sans-serif;
  font-size: 12px;
  font-weight: bold;
  pointer-events: none;
  /* Add text shadow for readability */
  filter: drop-shadow(1px 1px 1px rgba(0, 0, 0, 0.5));
}

/* SVG Harmonic Set styles (new system) */

.gram-frame-harmonic-set-line {
  stroke-width: 2;
  fill: none;
  pointer-events: auto !important;
  /*cursor: grab !important;*/
  stroke-linecap: round;
}

.gram-frame-harmonic-set-line:hover {
  stroke-width: 3;
  /* cursor: grab !important; */
}

.gram-frame-harmonic-set-line:active {
  cursor: grabbing !important;
}

/* Legacy harmonic styles (for backward compatibility) */
.gram-frame-harmonic {
  position: absolute;
  height: 1px;
  background-color: rgba(255, 255, 0, 0.7);
  pointer-events: none;
}



/* Debug grid */

/* Canvas boundary overlay */

/* Message display */

/* Error state */
.gram-frame-error {
  padding: 10px;
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
  border-radius: 4px;
  margin: 10px 0;
}

/* Harmonic Management Panel - always visible in unified layout */
.gram-frame-harmonic-panel {
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 10px;
  flex: 1;
  background: linear-gradient(135deg, #1a1a1a 0%, #000 50%, #0a0a0a 100%);
  border: 2px solid #333;
  border-radius: 4px;
  box-shadow: 
    inset 0 2px 6px rgba(0,0,0,0.8),
    inset 0 -1px 2px rgba(255,255,255,0.05),
    0 2px 4px rgba(0,0,0,0.5);
  position: relative;
  z-index: 1;
  pointer-events: auto;
}

.gram-frame-harmonic-header h4 {
  margin: 0 0 10px 0;
  font-size: 11px;
  color: #00ff00;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: bold;
}

.gram-frame-harmonic-list {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  min-height: 0;
}

.gram-frame-harmonic-table {
  width: 100%;
  border-collapse: collapse;
  font-family: 'Courier New', monospace;
  font-size: 11px;
  color: #ccc;
}

.gram-frame-harmonic-table th,
.gram-frame-harmonic-table td {
  padding: 6px 8px;
  text-align: left;
  border-bottom: 1px solid #444;
}

.gram-frame-harmonic-table th {
  background: #2a2a2a;
  color: #00ff00;
  font-weight: bold;
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: 1px;
}

.gram-frame-harmonic-table td {
  background: #1a1a1a;
}

.gram-frame-harmonic-table tr:hover td {
  background: #2a2a2a;
}

.gram-frame-harmonic-spacing,
.gram-frame-harmonic-rate {
  font-size: 14px;
  font-weight: bold;
}

.gram-frame-harmonic-color {
  width: 20px;
  height: 12px;
  border: 1px solid #555;
  border-radius: 2px;
  display: inline-block;
}

.gram-frame-harmonic-delete {
  background: linear-gradient(180deg, #6a4a4a 0%, #4a2a2a 50%, #2a1a1a 100%);
  color: #ff6666;
  border: 1px solid #555;
  border-radius: 2px;
  width: 20px;
  height: 20px;
  cursor: pointer;
  font-weight: bold;
  font-size: 12px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.1s ease;
}

.gram-frame-harmonic-delete:hover {
  background: linear-gradient(180deg, #8a5a5a 0%, #6a3a3a 50%, #4a2a2a 100%);
  border-color: #777;
}

.gram-frame-harmonic-delete:active {
  transform: translateY(1px);
}

.gram-frame-harmonic-empty {
  color: #666;
  font-style: italic;
  text-align: center;
  padding: 20px;
  font-size: 12px;
}

/* Doppler mode styles */
.gram-frame-doppler-fPlus {
  cursor: grab;
  pointer-events: auto;
}

.gram-frame-doppler-fPlus:active {
  cursor: grabbing;
}

.gram-frame-doppler-fMinus {
  cursor: grab;
  pointer-events: auto;
}

.gram-frame-doppler-fMinus:active {
  cursor: grabbing;
}

.gram-frame-doppler-crosshair {
  cursor: grab;
  pointer-events: auto;
}

.gram-frame-doppler-crosshair:active {
  cursor: grabbing;
}

.gram-frame-doppler-curve {
  pointer-events: none;
}

.gram-frame-doppler-guide {
  pointer-events: none;
}

.gram-frame-doppler-label {
  pointer-events: none;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, monospace;
}

/* Cursor position readout styles */
.gram-frame-cursor-readout {
  display: flex;
  gap: 15px;
  margin-bottom: 10px;
  padding: 8px;
  background: linear-gradient(180deg, #2a2a2a 0%, #1a1a1a 50%, #0a0a0a 100%);
  border: 1px solid #444;
  border-radius: 4px;
}

.gram-frame-readout-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 80px;
}

.gram-frame-readout-label {
  font-size: 10px;
  color: #aaa;
  text-transform: uppercase;
  margin-bottom: 2px;
  font-weight: bold;
}

.gram-frame-readout-value {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: bold;
  color: #00ff00;
  background: #000;
  padding: 4px 8px;
  border: 1px solid #333;
  border-radius: 2px;
  text-align: center;
  min-width: 60px;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.8);
}

/* Modal dialog styles */
.gram-frame-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.gram-frame-modal {
  background: linear-gradient(180deg, #3a3a3a 0%, #2a2a2a 50%, #1a1a1a 100%);
  border: 2px solid #555;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
  min-width: 350px;
  max-width: 500px;
  color: #ddd;
}

.gram-frame-modal-header {
  padding: 15px 20px;
  border-bottom: 1px solid #444;
  background: linear-gradient(180deg, #444 0%, #333 100%);
  border-radius: 6px 6px 0 0;
}

.gram-frame-modal-header h3 {
  margin: 0;
  font-size: 16px;
  color: #fff;
  text-align: center;
}

.gram-frame-modal-body {
  padding: 20px;
}

.gram-frame-modal-input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.gram-frame-modal-input-group label {
  font-weight: bold;
  color: #ccc;
  font-size: 14px;
}

.gram-frame-modal-input-group input {
  padding: 10px 12px;
  border: 2px solid #555;
  border-radius: 4px;
  background: linear-gradient(180deg, #2a2a2a 0%, #1a1a1a 100%);
  color: #fff;
  font-size: 14px;
  font-family: 'Courier New', monospace;
}

.gram-frame-modal-input-group input:focus {
  outline: none;
  border-color: #777;
  box-shadow: 0 0 4px rgba(119, 119, 119, 0.3);
}

.gram-frame-modal-error {
  color: #ff6b6b;
  font-size: 12px;
  margin-top: 4px;
}

.gram-frame-modal-footer {
  padding: 15px 20px;
  border-top: 1px solid #444;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  background: linear-gradient(180deg, #2a2a2a 0%, #1a1a1a 100%);
  border-radius: 0 0 6px 6px;
}

.gram-frame-modal-btn {
  padding: 8px 16px;
  border: 2px solid #555;
  border-radius: 4px;
  cursor: pointer;
  font-weight: bold;
  font-size: 12px;
  transition: all 0.1s ease;
  min-width: 80px;
}

.gram-frame-modal-cancel {
  background: linear-gradient(180deg, #6a4a4a 0%, #4a2a2a 50%, #2a1a1a 100%);
  color: #ffaaaa;
}

.gram-frame-modal-cancel:hover {
  background: linear-gradient(180deg, #7a5a5a 0%, #5a3a3a 50%, #3a2a2a 100%);
}

.gram-frame-modal-add {
  background: linear-gradient(180deg, #4a6a4a 0%, #2a4a2a 50%, #1a2a1a 100%);
  color: #aaffaa;
}

.gram-frame-modal-add:hover {
  background: linear-gradient(180deg, #5a7a5a 0%, #3a5a3a 50%, #2a3a2a 100%);
}

.gram-frame-modal-add:disabled {
  background: linear-gradient(180deg, #444 0%, #333 50%, #222 100%);
  color: #666;
  cursor: not-allowed;
}

.gram-frame-modal-btn:active:not(:disabled) {
  transform: translateY(1px);
}

/* Transform-Based Zoom Controls */
.gram-frame-zoom-controls {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  border: 2px solid #555;
  border-radius: 6px;
  background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 50%, #0f0f0f 100%);
  box-shadow: 
    inset 0 1px 2px rgba(255,255,255,0.1),
    inset 0 -1px 2px rgba(0,0,0,0.3),
    0 4px 8px rgba(0,0,0,0.3);
  z-index: 10;
}

.gram-frame-zoom-btn {
  min-width: 32px;
  height: 32px;
  border: 2px solid #666;
  border-radius: 4px;
  background: linear-gradient(180deg, #4a4a4a 0%, #3a3a3a 50%, #2a2a2a 100%);
  color: #fff;
  font-family: 'Courier New', monospace;
  font-weight: bold;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 
    0 2px 4px rgba(0,0,0,0.3),
    inset 0 1px 2px rgba(255,255,255,0.2);
}

.gram-frame-zoom-btn:hover:not(:disabled) {
  background: linear-gradient(180deg, #5a5a5a 0%, #4a4a4a 50%, #3a3a3a 100%);
  border-color: #777;
}

.gram-frame-zoom-btn:active:not(:disabled) {
  transform: translateY(1px);
  box-shadow: 
    0 1px 2px rgba(0,0,0,0.4),
    inset 0 -1px 2px rgba(255,255,255,0.1);
}

.gram-frame-zoom-btn:disabled {
  background: linear-gradient(180deg, #333 0%, #222 50%, #111 100%);
  color: #666;
  border-color: #444;
  cursor: not-allowed;
  opacity: 0.6;
}

.gram-frame-zoom-reset {
  font-size: 12px;
  min-width: 40px;
}

.gram-frame-pan-toggle.active {
  background: linear-gradient(180deg, #4a6a4a 0%, #2a4a2a 50%, #1a2a1a 100%);
  color: #aaffaa;
  border-color: #4a8a4a;
  box-shadow: 
    inset 0 1px 2px rgba(0,0,0,0.3),
    inset 0 -1px 2px rgba(255,255,255,0.1),
    0 0 4px rgba(74, 138, 74, 0.3);
}

.gram-frame-zoom-display {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: bold;
  color: #00ff00;
  text-shadow: 0 0 4px rgba(0,255,0,0.5);
  min-width: 50px;
  text-align: center;
  background: rgba(0,0,0,0.3);
  padding: 4px 8px;
  border-radius: 3px;
  border: 1px solid #333;
}

/* Unified Layout Styles */
.gram-frame-unified-layout {
  display: flex;
  gap: 12px;
  width: 100%;
  height: 100%;
}

.gram-frame-left-column {
  position: relative; /* Enable absolute positioning for child elements */
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 0 0 250px;
  width: 250px;
  background: linear-gradient(180deg, #2a2a2a 0%, #1a1a1a 50%, #0a0a0a 100%);
  border: 1px solid #444;
  border-radius: 4px;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.3);
}

.gram-frame-middle-column {
  display: flex;
  flex-direction: column;
  flex: 0 0 300px;
  width: 300px;
  padding: 10px;
  background: linear-gradient(180deg, #2a2a2a 0%, #1a1a1a 50%, #0a0a0a 100%);
  border: 1px solid #444;
  border-radius: 4px;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.3);
}

.gram-frame-right-column {
  display: flex;
  flex-direction: column;
  flex: 0 0 300px;
  width: 300px;
  padding: 10px;
  background: linear-gradient(180deg, #2a2a2a 0%, #1a1a1a 50%, #0a0a0a 100%);
  border: 1px solid #444;
  border-radius: 4px;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.3);
}

.gram-frame-cursor-leds {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  align-items: flex-start;
  flex: 0 0 auto;
  height: fit-content;
}

.gram-frame-markers-persistent-container,
.gram-frame-harmonics-persistent-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

.gram-frame-markers-persistent-container h4,
.gram-frame-harmonics-persistent-container h4 {
  margin: 0 0 8px 0;
  flex-shrink: 0;
  color: #ddd;
  font-size: 14px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: 1px solid #444;
  padding-bottom: 4px;
}

.gram-frame-harmonics-button-container {
  margin-bottom: 8px;
  display: flex;
  justify-content: center;
}

/* Responsive behavior for smaller screens */
@media (max-width: 1200px) {
  .gram-frame-unified-layout {
    flex-direction: column;
    gap: 8px;
  }
  
  .gram-frame-left-column,
  .gram-frame-middle-column,
  .gram-frame-right-column {
    flex: 0 0 auto;
    min-height: 200px;
  }
}

/* Selection highlighting for keyboard control */
.gram-frame-selected-row {
  background: linear-gradient(135deg, #4a6a4a 0%, #2a4a2a 50%, #1a2a1a 100%) !important;
  color: #aaffaa !important;
  border: 2px solid #4a8a4a !important;
  box-shadow: 
    inset 0 1px 2px rgba(255,255,255,0.1),
    inset 0 -1px 2px rgba(0,0,0,0.3),
    0 0 6px rgba(74, 138, 74, 0.4) !important;
}

.gram-frame-selected-row td {
  color: #aaffaa !important;
  border-color: #4a8a4a !important;
}

/* Enhanced table row interactivity */
.gram-frame-markers-table tbody tr,
.gram-frame-harmonic-table tbody tr {
  cursor: pointer;
  transition: all 0.2s ease;
}

.gram-frame-markers-table tbody tr:hover,
.gram-frame-harmonic-table tbody tr:hover {
  background: linear-gradient(135deg, #3a3a3a 0%, #2a2a2a 50%, #1a1a1a 100%);
  box-shadow: 
    inset 0 1px 2px rgba(255,255,255,0.05),
    inset 0 -1px 2px rgba(0,0,0,0.2),
    0 0 4px rgba(255,255,255,0.1);
}

/* Selected Doppler marker highlighting */
.gram-frame-selected-doppler-marker {
  stroke: #4a8a4a !important;
  stroke-width: 3 !important;
  filter: drop-shadow(0 0 8px rgba(74, 138, 74, 0.6)) !important;
}

.gram-frame-selected-doppler-marker[fill] {
  fill: #4a8a4a !important;
  stroke: #aaffaa !important;
}