/* ===== Base Styles & CSS Variables ===== */
:root {
  --bg-main: #0f172a;
  --bg-sidebar: #1e293b;
  --bg-panel: #1e293b;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent-color: #0ea5e9;
  --accent-hover: #38bdf8;
  --border-color: #334155;
  --map-bg: #0f172a;
  
  --font-family: 'Inter', sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden; /* Prevent body scroll, layout manages scrolling */
}

/* ===== Layout Structure ===== */
.app-layout {
  display: flex;
  height: 100vh;
  width: 100vw;
}

/* ===== Sidebar ===== */
.sidebar {
  width: 320px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 10;
  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.2);
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sidebar-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  background: linear-gradient(90deg, #38bdf8, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge {
  background-color: var(--accent-color);
  color: #fff;
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* ===== Tree View ===== */
.tree-container {
  flex: 1;
  overflow-y: auto;
  padding: 15px;
}

/* Custom scrollbar for tree */
.tree-container::-webkit-scrollbar {
  width: 6px;
}
.tree-container::-webkit-scrollbar-thumb {
  background-color: var(--border-color);
  border-radius: 3px;
}

.tree-node {
  margin: 4px 0;
}

.tree-node-label {
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 6px;
  transition: background-color 0.2s ease, color 0.2s ease;
  user-select: none;
  font-size: 0.9rem;
}

.tree-node-label:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

.tree-node-label.active {
  background-color: rgba(14, 165, 233, 0.2);
  color: var(--accent-hover);
}

.toggle-icon {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 6px;
  font-size: 0.7rem;
  color: var(--text-muted);
  transition: transform 0.2s;
}

.tree-node.expanded > .tree-node-label .toggle-icon {
  transform: rotate(90deg);
}

.tree-children {
  display: none;
  padding-left: 18px;
  border-left: 1px solid var(--border-color);
  margin-left: 8px;
}

.tree-node.expanded > .tree-children {
  display: block;
}

.node-icon {
  margin-right: 8px;
  font-size: 1rem;
}

/* ===== Main Content Area ===== */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* ===== Topbar & Tabs ===== */
.topbar {
  background-color: var(--bg-sidebar);
  border-bottom: 1px solid var(--border-color);
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.tabs {
  display: flex;
  gap: 10px;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.95rem;
  padding: 10px 16px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
  font-weight: 500;
}

.tab-btn:hover {
  color: var(--text-main);
}

.tab-btn.active {
  color: var(--accent-hover);
  border-bottom-color: var(--accent-color);
}

/* ===== View Containers ===== */
.view-container {
  flex: 1;
  position: relative;
  background-color: var(--bg-main);
}

.view {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.view.active {
  opacity: 1;
  pointer-events: auto;
}

/* ===== Map View ===== */
#map {
  width: 100%;
  height: 100%;
  background-color: var(--map-bg);
}

/* Customizing Leaflet popups for dark mode */
.leaflet-popup-content-wrapper, .leaflet-popup-tip {
  background-color: var(--bg-sidebar) !important;
  color: var(--text-main) !important;
  box-shadow: 0 4px 15px rgba(0,0,0,0.5) !important;
  border: 1px solid var(--border-color);
}
.leaflet-popup-content {
  margin: 14px 16px;
  font-family: var(--font-family);
}
.leaflet-container a.leaflet-popup-close-button {
  color: var(--text-muted) !important;
}

/* ===== Table View ===== */
.table-wrapper {
  padding: 20px;
  height: 100%;
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-panel);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

thead {
  background-color: rgba(255, 255, 255, 0.05);
}

th, td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.9rem;
}

th {
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

tbody tr:last-child td {
  border-bottom: none;
}

/* ===== Placeholder Views (2D/3D) ===== */
.placeholder-view {
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, var(--bg-sidebar) 0%, var(--bg-main) 100%);
}

.placeholder-content {
  text-align: center;
  padding: 40px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.placeholder-content h3 {
  font-size: 2rem;
  margin-bottom: 10px;
  background: linear-gradient(90deg, #38bdf8, #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.placeholder-content p {
  color: var(--text-muted);
}

/* ===== Filters ===== */
.filters-container {
  display: flex;
  gap: 12px;
  align-items: center;
}

.filter-select {
  background-color: var(--bg-main);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.85rem;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s;
}

.filter-select:hover {
  border-color: var(--accent-color);
}

.filter-select:focus {
  border-color: var(--accent-hover);
  box-shadow: 0 0 0 2px rgba(14, 165, 233, 0.2);
}

.filter-select option {
  background-color: var(--bg-sidebar);
  color: var(--text-main);
}

/* ===== Search ===== */
.search-input {
  background-color: var(--bg-main);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.85rem;
  outline: none;
  width: 220px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-input:hover {
  border-color: var(--accent-color);
}

.search-input:focus {
  border-color: var(--accent-hover);
  box-shadow: 0 0 0 2px rgba(14, 165, 233, 0.2);
}

.search-input::placeholder {
  color: var(--text-muted);
}

/* ===== Checkboxes ===== */
.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.checkbox-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color 0.2s;
  user-select: none;
}

.checkbox-label:hover {
  color: var(--text-main);
}

.checkbox-label input[type="checkbox"] {
  cursor: pointer;
  accent-color: var(--accent-color);
}

/* ===== Map Label Tooltips ===== */
.map-label-tooltip {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  color: #ec1515 !important;
  font-weight: 600;
  font-size: 11px;
  text-shadow: 
    -1px -1px 0 #000, 
     1px -1px 0 #000, 
    -1px  1px 0 #000, 
     1px  1px 0 #000,
     0px  0px 4px rgba(0,0,0,0.8);
  white-space: pre-line;
  direction: ltr;
}
.map-label-tooltip::before {
  display: none !important; /* Hide the little triangle pointer */
}