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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f5f5f5;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.site-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 3rem 0;
  margin-bottom: 2rem;
}

.site-title {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.scope {
  background: rgba(255, 255, 255, 0.1);
  padding: 2rem;
  border-radius: 8px;
  margin-top: 2rem;
}

.scope h2 {
  margin-bottom: 1rem;
}

.scope p {
  margin-bottom: 1rem;
}

/* Visualization Wrapper */
.visualization-wrapper {
  padding: 1.5rem 2rem 2rem;
  max-width: 1600px;
  margin: 0 auto;
}

/* Stack Toolbar */
.stack-toolbar {
  background: white;
  border-radius: 8px;
  padding: 1rem 1.25rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: center;
  margin-bottom: 1.25rem;
}

.stats-header h2 {
  font-size: 1.1rem;
  margin: 0;
  color: #667eea;
  white-space: nowrap;
}

.stats-content {
  display: flex;
  gap: 0.75rem;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-width: 118px;
  padding: 0.55rem 0.75rem;
  background: #f7f8fc;
  border: 1px solid #e5e7ef;
  border-radius: 6px;
  font-size: 0.9rem;
}

.stat-label {
  color: #666;
  font-weight: 500;
}

.stat-value {
  font-size: 1.25rem;
  font-weight: bold;
  color: #667eea;
}

.stat-value.nonprofit {
  color: #27ae60;
}

.stat-value.commercial {
  color: #3498db;
}



.filters-section {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.filters-section h3 {
  font-size: 0.9rem;
  margin: 0;
  color: #333;
}

.filter-group {
  display: flex;
  gap: 0.8rem;
}

.filter-label {
  display: flex;
  align-items: center;
  cursor: pointer;
  font-size: 0.9rem;
  color: #333;
}

.filter-checkbox {
  margin-right: 0.2rem;
  cursor: pointer;
  width: 16px;
  height: 16px;
}

.filter-swatch {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 0.3rem;
}

.nonprofit-swatch {
  background: #27ae60;
}

.commercial-swatch {
  background: #3498db;
}

.reset-btn {
  width: auto;
  padding: 0.55rem 0.75rem;
  background: #667eea;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
  transition: background 0.3s ease;
}

.reset-btn:hover {
  background: #764ba2;
}

/* Map Wrapper */
.map-wrapper {
  position: relative;
  width: 100%;
  max-width: none;
  padding: 0;
}

.layers-container {
  display: grid;
  gap: 1.25rem;
}

.connectors-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* Layers */
.layer {
  background: white;
  padding: 1.35rem;
  border-radius: 8px;
  border-left: 6px solid #667eea;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  min-width: 0;
  position: relative;
  z-index: 2;
  transition: all 0.3s ease;
}

.layer.hidden {
  opacity: 0.3;
  pointer-events: none;
}

.stack-notes {
  background: white;
  padding: 1.35rem;
  border-radius: 8px;
  border-left: 6px solid #7f8c8d;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  position: relative;
  z-index: 2;
}

.stack-notes h2 {
  color: #59636d;
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}

.stack-notes > p {
  color: #666;
  margin-bottom: 0.6rem;
}

.note-group + .note-group {
  margin-top: 0.75rem;
}

.note-group h3 {
  color: #59636d;
  margin-bottom: 0.4rem;
  font-size: 1rem;
}

.note-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.note-entry {
  display: grid;
  grid-template-columns: 8px auto minmax(0, 1fr);
  align-items: baseline;
  gap: 0.45rem;
  padding: 0.45rem 0;
  border-top: 1px solid #e4e7eb;
}

.note-entry::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ccc;
}

.note-entry[data-type="nonprofit"]::before,
.note-entry[data-type="civic project"]::before {
  background: #27ae60;
}

.note-entry[data-type="commercial"]::before,
.note-entry[data-type="for-profit"]::before {
  background: #3498db;
}

.note-entry.hidden {
  display: none;
}

.note-entry a {
  color: #333;
  text-decoration: none;
}

.note-entry a:hover {
  color: #667eea;
  text-decoration: underline;
}

.note-entry strong {
  font-size: 0.9rem;
}

.note-entry .item-note {
  margin: 0;
}

/* Color coding by layer */
.layer:nth-child(1) {
  border-left-color: #e74c3c;
}

.layer:nth-child(2) {
  border-left-color: #f39c12;
}

.layer:nth-child(3) {
  border-left-color: #3498db;
}

.layer:nth-child(4) {
  border-left-color: #9b59b6;
}

.layer:nth-child(5) {
  border-left-color: #1abc9c;
}

.layer h2 {
  color: #667eea;
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}

.layer > p {
  color: #666;
  margin-bottom: 1rem;
}

.categories {
  align-items: start;
  display: grid;
  gap: 1rem;
  grid-auto-columns: minmax(260px, 1fr);
  grid-auto-flow: column;
  grid-template-columns: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  padding-bottom: 0.65rem;
  scroll-snap-type: x proximity;
  scrollbar-color: #aeb5c7 #eef0f5;
  scrollbar-width: thin;
}

.categories.has-overflow-end {
  -webkit-mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 2rem), transparent 100%);
  mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 2rem), transparent 100%);
}

.categories.is-scrollable:focus-visible {
  outline: 2px solid #667eea;
  outline-offset: 3px;
}

.categories::-webkit-scrollbar {
  height: 10px;
}

.categories::-webkit-scrollbar-track {
  background: #eef0f5;
  border-radius: 999px;
}

.categories::-webkit-scrollbar-thumb {
  background: #aeb5c7;
  border: 2px solid #eef0f5;
  border-radius: 999px;
}

.categories::-webkit-scrollbar-thumb:hover {
  background: #858da3;
}

.category {
  background: #f9f9f9;
  padding: 1rem;
  border-radius: 6px;
  border: 1px solid #e0e0e0;
  scroll-snap-align: start;
}

.category h3 {
  color: #764ba2;
  margin-bottom: 0.7rem;
  font-size: 1rem;
}

.items {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.category-empty {
  margin: 0;
  padding: 0.7rem 0.8rem;
  border: 1px dashed #c8ccd8;
  border-radius: 4px;
  background: white;
  color: #777;
  font-size: 0.85rem;
  font-style: italic;
}

.item {
  background: white;
  padding: 0.7rem 0.8rem;
  border-radius: 4px;
  border: 1px solid #ddd;
  border-left: 4px solid #ccc;
  transition: all 0.3s ease;
  cursor: pointer;
}

.item.hidden {
  display: none;
}

/* Color coding by entity type */
.item[data-type="nonprofit"],
.item[data-type="civic project"] {
  border-left-color: #27ae60;
  background: #f0fdf4;
}

.item[data-type="commercial"],
.item[data-type="for-profit"] {
  border-left-color: #3498db;
  background: #f0f9ff;
}

.item:hover {
  border-color: #667eea;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
  transform: translateY(-2px);
}

.item a {
  text-decoration: none;
  color: inherit;
  display: block;
}

.item strong {
  color: #333;
  display: block;
  margin-bottom: 0.15rem;
  font-size: 0.95rem;
}

.item-org {
  font-size: 0.8rem;
  color: #666;
}

.item-note {
  margin-top: 0.35rem;
  font-size: 0.85rem;
  color: #666;
}

.loading {
  text-align: center;
  padding: 2rem;
  color: #666;
  font-style: italic;
}

.error {
  background: #fee;
  color: #c00;
  padding: 2rem;
  border-radius: 8px;
  text-align: center;
}

.site-footer {
  background: #333;
  color: white;
  padding: 2rem;
  margin-top: 3rem;
  text-align: center;
  border-top: 1px solid #555;
}

.site-footer code {
  background: #444;
  padding: 0.25rem 0.5rem;
  border-radius: 3px;
  font-family: monospace;
}

@media (max-width: 1024px) {
  .visualization-wrapper {
    padding: 1rem;
  }

  .stack-toolbar {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .stats-content,
  .filters-section {
    flex-wrap: wrap;
  }

  .site-title {
    font-size: 1.8rem;
  }

  .layer {
    padding: 1rem;
  }

  .stack-notes {
    padding: 1rem;
  }
}

@media (max-width: 640px) {
  .stats-content {
    display: grid;
    grid-template-columns: 1fr;
  }

  .stat-item {
    justify-content: space-between;
  }

  .filters-section {
    align-items: flex-start;
    flex-direction: column;
  }

}