/* ==========================================================================
   SI-FDM Spatial Freight Dashboard Design System
   Theme: WinAI / SJ Corporate Dark Mode with Glassmorphism & High-Contrast Maps
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-dark: #0f172a;
  --bg-card: rgba(30, 41, 59, 0.85);
  --bg-card-hover: rgba(51, 65, 85, 0.9);
  --border-color: rgba(255, 255, 255, 0.1);
  --border-accent: rgba(56, 189, 248, 0.3);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --color-source: #10b981;  /* Emerald */
  --color-demand: #f43f5e;  /* Crimson Rose */
  --color-primary: #0284c7; /* Sky Blue */
  --color-accent: #38bdf8;  /* Cyan */
  --color-warning: #f59e0b; /* Amber */
  --color-purple: #a855f7;  /* Purple */
  
  --shadow-main: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --backdrop-blur: blur(16px);
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* --------------------------------------------------------------------------
   Header Bar
   -------------------------------------------------------------------------- */
.navbar {
  height: 64px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: var(--backdrop-blur);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 1000;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #0284c7, #38bdf8);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.4);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.3px;
  background: linear-gradient(90deg, #ffffff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-subtitle {
  font-size: 11px;
  color: var(--color-accent);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.header-badges {
  display: flex;
  align-items: center;
  gap: 12px;
}

.badge {
  padding: 4px 12px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border-color);
  background: rgba(30, 41, 59, 0.6);
}

.badge-source {
  color: #34d399;
  border-color: rgba(52, 211, 153, 0.3);
  background: rgba(16, 185, 129, 0.1);
}

.badge-demand {
  color: #fb7185;
  border-color: rgba(251, 113, 133, 0.3);
  background: rgba(244, 63, 94, 0.1);
}

/* --------------------------------------------------------------------------
   App Layout: Sidebar + Map Container
   -------------------------------------------------------------------------- */
.app-container {
  display: flex;
  flex: 1;
  height: calc(100vh - 64px);
  position: relative;
}

.sidebar {
  width: 420px;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: var(--backdrop-blur);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 500;
  overflow-y: auto;
}

.sidebar-section {
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
}

.section-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* KPI Summary Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 14px;
  transition: all 0.2s ease;
}

.kpi-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

.kpi-label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}

.kpi-value {
  font-size: 22px;
  font-weight: 800;
  margin-top: 4px;
  font-family: 'JetBrains Mono', monospace;
}

.kpi-value.source { color: var(--color-source); }
.kpi-value.demand { color: var(--color-demand); }
.kpi-value.accent { color: var(--color-accent); }

/* Filter Controls */
.filter-group {
  margin-bottom: 14px;
}

.filter-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
  display: block;
}

.search-input, .select-input {
  width: 100%;
  padding: 10px 14px;
  background: rgba(30, 41, 59, 0.9);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
}

.search-input:focus, .select-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pill-btn {
  padding: 6px 12px;
  border-radius: 20px;
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.pill-btn:hover {
  background: rgba(51, 65, 85, 0.9);
  color: var(--text-main);
}

.pill-btn.active {
  background: var(--color-primary);
  border-color: var(--color-accent);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 0 10px rgba(2, 132, 199, 0.4);
}

/* Node List View */
.node-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 20px 20px 20px;
}

.node-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.node-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateX(4px);
}

.node-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.node-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}

.node-meta {
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  gap: 8px;
  align-items: center;
}

.node-tons {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 14px;
  text-align: right;
}

.tag-source { color: var(--color-source); }
.tag-demand { color: var(--color-demand); }

/* --------------------------------------------------------------------------
   Map Area
   -------------------------------------------------------------------------- */
#map {
  flex: 1;
  height: 100%;
  background: #090d16;
}

/* Custom Leaflet Dark Popup Styling */
.leaflet-popup-content-wrapper {
  background: rgba(15, 23, 42, 0.96) !important;
  backdrop-filter: blur(16px) !important;
  border: 1px solid rgba(56, 189, 248, 0.35) !important;
  color: var(--text-main) !important;
  border-radius: 14px !important;
  box-shadow: 0 20px 35px -5px rgba(0, 0, 0, 0.8), 0 0 15px rgba(2, 132, 199, 0.15) !important;
  padding: 0 !important;
  overflow: hidden;
}

.leaflet-popup-content {
  margin: 0 !important;
  line-height: 1.4 !important;
}

.leaflet-popup-tip {
  background: rgba(15, 23, 42, 0.96) !important;
  border: 1px solid rgba(56, 189, 248, 0.35) !important;
}

.popup-container {
  padding: 16px 18px;
  width: 320px;
  max-width: 340px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

.popup-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 8px;
}

.popup-title {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.35;
  margin-bottom: 6px;
  letter-spacing: -0.2px;
}

.popup-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.popup-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
}

.popup-pill-source {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(52, 211, 153, 0.3);
}

.popup-pill-demand {
  background: rgba(244, 63, 94, 0.15);
  color: #fb7185;
  border: 1px solid rgba(251, 113, 133, 0.3);
}

.popup-pill-com {
  background: rgba(56, 189, 248, 0.15);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.popup-volume-card {
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.popup-volume-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #94a3b8;
}

.popup-volume-val {
  font-size: 15px;
  font-weight: 800;
  font-family: 'JetBrains Mono', monospace;
  color: #ffffff;
}

.popup-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.popup-grid-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 8px;
  align-items: baseline;
}

.popup-grid-label {
  color: #94a3b8;
  font-size: 11.5px;
  font-weight: 500;
}

.popup-grid-val {
  color: #f1f5f9;
  font-size: 12px;
  font-weight: 600;
  word-break: break-word;
}

.popup-notes {
  font-size: 11px;
  color: #94a3b8;
  background: rgba(15, 23, 42, 0.6);
  border-left: 2px solid var(--color-accent);
  padding: 6px 10px;
  border-radius: 0 6px 6px 0;
  font-style: italic;
  line-height: 1.4;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  text-align: center;
  width: 100%;
}

.status-converged { background: rgba(16, 185, 129, 0.2); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.4); }
.status-under { background: rgba(244, 63, 94, 0.2); color: #fb7185; border: 1px solid rgba(244, 63, 94, 0.4); }
.status-over { background: rgba(245, 158, 11, 0.2); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.4); }

/* --------------------------------------------------------------------------
   Basemap Switcher Widget
   -------------------------------------------------------------------------- */
.basemap-widget {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(15, 23, 42, 0.90);
  backdrop-filter: blur(12px);
  padding: 6px 10px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-main);
  flex-wrap: wrap;
}

.basemap-group-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  padding: 0 4px;
}

.basemap-divider {
  width: 1px;
  height: 20px;
  background: var(--border-color);
  margin: 0 4px;
}

.basemap-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 4px;
}

.basemap-btn:hover {
  color: #fff;
  background: rgba(51, 65, 85, 0.7);
}

.basemap-btn.active {
  color: #fff;
  background: var(--color-primary);
  border-color: var(--color-accent);
  box-shadow: 0 0 10px rgba(2, 132, 199, 0.4);
}

.overlay-btn {
  background: transparent;
  border: 1px solid rgba(148, 163, 184, 0.2);
  color: var(--text-muted);
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 4px;
}

.overlay-btn:hover {
  color: #fff;
  border-color: rgba(56, 189, 248, 0.5);
  background: rgba(51, 65, 85, 0.7);
}

.overlay-btn.active {
  color: #38bdf8;
  background: rgba(2, 132, 199, 0.25);
  border-color: #38bdf8;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.35);
}

/* --------------------------------------------------------------------------
   OD Freight Flow Desire Line Animations & Details Card
   -------------------------------------------------------------------------- */
.od-flow-card {
  position: absolute;
  bottom: 24px;
  right: 24px;
  width: 380px;
  background: rgba(15, 23, 42, 0.94);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  z-index: 1000;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.7);
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.od-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
  margin-bottom: 12px;
}

.od-corridor-title {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
}

.od-pair-subtitle {
  font-size: 11px;
  color: #38bdf8;
  margin-top: 2px;
}

.od-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
}

.od-close-btn:hover {
  color: #fff;
}

.od-metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
}

.od-metric-box {
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
}

.od-metric-label {
  font-size: 10px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.od-metric-val {
  font-size: 14px;
  color: var(--text-main);
  font-family: 'JetBrains Mono', monospace;
  margin-top: 2px;
}

.od-details-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.od-details-row strong {
  color: var(--text-main);
  font-family: 'JetBrains Mono', monospace;
}

/* Animated Flow Dashes */
@keyframes flowDash {
  to {
    stroke-dashoffset: -40;
  }
}

.leaflet-interactive.od-flow-line {
  stroke-dasharray: 8, 8;
  animation: flowDash 1.5s linear infinite;
}