/**
 * Radar Speed & Projection Tracker Stylesheet
 */

:root {
  --primary-blue: #007BFF;
  --primary-red: #DC3545;
  --border-color: #dee2e6;
  --bg-light: #f8f9fa;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  margin: 0;
  padding: 20px;
  background-color: #f0f2f5;
  display: flex;
  justify-content: safe center;
}

.app-container {
  background: white;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  width: fit-content;
}

/* Top Stats Panel Layout */
.stats-panel {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
  margin-bottom: 20px;
  background: var(--bg-light);
  padding: 15px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  width: 400px;
  box-sizing: border-box;
}

.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.stat-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: #6c757d;
  font-weight: 600;
  margin-bottom: 4px;
}

.stat-value {
  font-size: 0.95rem;
  font-weight: bold;
  color: #212529;
}

.stat-card.blue .stat-value { 
  color: var(--primary-blue); 
}

.stat-card.red .stat-value { 
  color: var(--primary-red); 
}

/* Main Workspace Layout */
.workspace {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: center;
}

/* Canvas Drawing Workspace (Strictly 400x400 Crop Box) */
.canvas-container {
  width: 400px;
  height: 400px;
  border: 2px solid #333;
  border-radius: 4px;
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
  background: #000;
}

/* Base configuration centered crop frame window logic */
.radar-layer {
  position: absolute;
  pointer-events: none;
  display: none;
}

#paint-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  cursor: crosshair;
}

/* Controls Configuration Grid Panels */
.controls-panel {
  width: 400px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.mode-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.btn-mode {
  padding: 10px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: white;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-mode.active[data-mode="measure"] {
  background: var(--primary-blue);
  color: white;
  border-color: var(--primary-blue);
}

.btn-mode.active[data-mode="projection"] {
  background: var(--primary-red);
  color: white;
  border-color: var(--primary-red);
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.control-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: #495057;
}

select, input[type="range"] {
  width: 100%;
  margin: 6px 0;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  box-sizing: border-box;
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}