/* Custom styles for the Context Engineering Radar tool (Light Theme) */
:root {
  --radar-bg-canvas: #f9fafb;
  --radar-border: #e5e7eb;
  --radar-text: #1f2937;
  --radar-text-muted: #6b7280;
  
  /* HSL customized theme colors for each level */
  --radar-primary: #0284c7;    /* Primary: Sky Blue */
  --radar-secondary: #7c3aed;  /* Secondary: Violet */
  --radar-tertiary: #d97706;   /* Tertiary: Amber */
}

/* Radar Layout container */
.radar-shell {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  margin-top: 24px;
}

@media (max-width: 900px) {
  .radar-shell {
    grid-template-columns: 1fr;
  }
}

/* Hero Section */
.page-hero {
  padding: 32px 0 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.page-hero h1 {
  font-size: 2.25rem;
  margin-bottom: 8px;
}

.page-intro {
  color: var(--muted);
  font-size: 1.1rem;
  font-weight: 400;
}

/* Radar Section Visualizer */
.radar-viz-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px;
}

.radar-chart-area {
  width: 100%;
  max-width: 500px;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: var(--radar-bg-canvas);
  border: 1px solid var(--radar-border);
  border-radius: var(--radius);
  padding: 16px;
}

.radar-svg {
  width: 100%;
  height: 100%;
}

/* SVG Styling */
.radar-ring {
  fill: none;
  stroke: rgba(0, 0, 0, 0.08);
  stroke-width: 1.5;
}

.radar-axis {
  stroke: rgba(0, 0, 0, 0.06);
  stroke-width: 1;
  stroke-dasharray: 4 4;
}

.radar-ring-text {
  fill: var(--radar-text-muted);
  font-size: 10px;
  font-weight: 600;
  pointer-events: none;
}

.radar-quadrant-text {
  fill: var(--radar-text-muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  pointer-events: none;
}

.radar-node {
  cursor: pointer;
  transition: transform 0.15s ease;
}

.radar-node circle {
  transition: r 0.15s ease, stroke-width 0.15s ease;
}

.radar-node:hover {
  transform: scale(1.25);
}

.radar-node.active {
  transform: scale(1.35);
}

.radar-node-connector {
  stroke-dasharray: 3 3;
  stroke-width: 1;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.radar-node-connector.active {
  opacity: 0.6;
}

/* Legend */
.radar-legend-bar {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-top: 16px;
}

.radar-legend-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--radar-text-muted);
}

.legend-color-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.dot-primary { background-color: var(--radar-primary); }
.dot-secondary { background-color: var(--radar-secondary); }
.dot-tertiary { background-color: var(--radar-tertiary); }

/* Sidebar */
.radar-sidebar {
  display: flex;
  flex-direction: column;
  max-height: 600px;
}

.search-field {
  margin-bottom: 12px;
}

.filter-bar {
  display: flex;
  gap: 6px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  margin-bottom: 16px;
}

.filter-pill {
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.filter-pill:hover {
  background: #f3f4f6;
  color: var(--text);
}

.filter-pill.active {
  background: #eff6ff;
  border-color: #bfdbfe;
  color: var(--accent);
}

/* Sidebar List scroll */
.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
  padding-right: 4px;
  flex-grow: 1;
}

.sidebar-list::-webkit-scrollbar {
  width: 6px;
}
.sidebar-list::-webkit-scrollbar-track {
  background: transparent;
}
.sidebar-list::-webkit-scrollbar-thumb {
  background: #d1d5db;
  border-radius: 999px;
}

/* Cards list */
.radar-card {
  border-left-width: 4px !important;
  cursor: pointer;
}

.radar-card:hover {
  transform: translateY(-1px);
}

.radar-card.active {
  background: #fdfeff;
  border-color: #93c5fd;
  box-shadow: 0 4px 16px rgba(0,0,0,0.05);
}

.radar-card.ring-primary { border-left-color: var(--radar-primary) !important; }
.radar-card.ring-secondary { border-left-color: var(--radar-secondary) !important; }
.radar-card.ring-tertiary { border-left-color: var(--radar-tertiary) !important; }

/* Modal details */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-popup {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  width: 90%;
  max-width: 480px;
  position: relative;
  transform: scale(0.95);
  transition: transform 0.25s ease;
  padding: 36px 24px 24px;
}

.modal-overlay.open .modal-popup {
  transform: scale(1);
}

.close-popup-btn {
  position: absolute;
  right: 16px;
  top: 12px;
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
}

.close-popup-btn:hover {
  color: var(--text);
}

.popup-tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 700;
  border-radius: 4px;
  text-transform: uppercase;
  margin-bottom: 12px;
  color: #ffffff;
}

.popup-title {
  font-size: 1.5rem;
  font-weight: 750;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.25;
}

.popup-description {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: 20px;
}

.popup-meta-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 12px;
  border-radius: 10px;
  background: #f9fafb;
  border: 1px solid var(--border);
  margin-bottom: 20px;
}

.meta-box-item {
  display: flex;
  flex-direction: column;
}

.meta-box-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--radar-text-muted);
  margin-bottom: 2px;
}

.meta-box-value {
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
}

.popup-actions {
  display: flex;
  justify-content: flex-end;
}