/* ==========================================================================
   FLEET MANAGEMENT SYSTEM (FMS) - LINEAR DESIGN SYSTEM
   Supports: Dark High-Density Telemetry & Crisp Light Enterprise Themes
   Features: Hide/Show Collapsible Sidebar, Realtime Map Styles, Responsive
   ========================================================================== */

:root {
  /* DARK THEME (DEFAULT) */
  --canvas: #010102;
  --surface-1: #0f1011;
  --surface-2: #141516;
  --surface-3: #18191a;
  --surface-4: #222326;
  --surface-hover: #1c1d1f;
  
  /* Hairline Borders */
  --hairline: #23252a;
  --hairline-strong: #34343a;
  --hairline-tertiary: #3e3e44;
  --hairline-focus: #5e6ad2;
  
  /* Brand & Primary Accent */
  --primary: #5e6ad2;
  --primary-hover: #828fff;
  --primary-focus: #5e69d1;
  --primary-glow: rgba(94, 106, 210, 0.25);
  
  /* Ink & Typography */
  --ink: #f7f8f8;
  --ink-muted: #d0d6e0;
  --ink-subtle: #8a8f98;
  --ink-tertiary: #62666d;
  
  /* Status Colors */
  --status-loading: #00f0ff;       /* Electric Cyan */
  --status-loading-bg: rgba(0, 240, 255, 0.12);
  --status-hauling: #27a644;       /* Emerald */
  --status-hauling-bg: rgba(39, 166, 68, 0.14);
  --status-dumping: #a855f7;       /* Purple */
  --status-dumping-bg: rgba(168, 85, 247, 0.14);
  --status-return: #3b82f6;        /* Blue */
  --status-return-bg: rgba(59, 130, 246, 0.14);
  --status-idle: #f59e0b;          /* Amber */
  --status-idle-bg: rgba(245, 158, 11, 0.14);
  --status-breakdown: #ef4444;     /* Rose / Red */
  --status-breakdown-bg: rgba(239, 68, 68, 0.14);
  
  /* Metrics & Gauges */
  --metric-cyan: #06b6d4;
  --metric-purple: #8b5cf6;
  --metric-emerald: #10b981;
  
  /* Radii */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;

  /* Card Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
}

/* LIGHT THEME OVERRIDES */
[data-theme="light"] {
  --canvas: #f8fafc;
  --surface-1: #ffffff;
  --surface-2: #f1f5f9;
  --surface-3: #e2e8f0;
  --surface-4: #cbd5e1;
  --surface-hover: #e2e8f0;
  
  --hairline: #e2e8f0;
  --hairline-strong: #cbd5e1;
  --hairline-tertiary: #94a3b8;
  --hairline-focus: #4f5cd1;
  
  --primary: #4f5cd1;
  --primary-hover: #3b48b8;
  --primary-focus: #4350c2;
  --primary-glow: rgba(79, 92, 209, 0.2);
  
  --ink: #0f172a;
  --ink-muted: #334155;
  --ink-subtle: #64748b;
  --ink-tertiary: #94a3b8;
  
  --status-loading: #0284c7;
  --status-loading-bg: rgba(2, 132, 199, 0.12);
  --status-hauling: #16a34a;
  --status-hauling-bg: rgba(22, 163, 74, 0.14);
  --status-dumping: #9333ea;
  --status-dumping-bg: rgba(147, 51, 234, 0.12);
  --status-return: #2563eb;
  --status-return-bg: rgba(37, 99, 235, 0.12);
  --status-idle: #d97706;
  --status-idle-bg: rgba(217, 119, 6, 0.14);
  --status-breakdown: #dc2626;
  --status-breakdown-bg: rgba(220, 38, 38, 0.14);

  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
}

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

html, body {
  width: 100%;
  min-height: 100vh;
  background-color: var(--canvas);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--canvas);
}
::-webkit-scrollbar-thumb {
  background: var(--hairline-strong);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--ink-tertiary);
}

/* App Container */
.app-container {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

/* ==========================================================================
   SIDEBAR & COLLAPSIBLE CONTROLS
   ========================================================================== */

.app-sidebar {
  width: 260px;
  min-width: 260px;
  background: var(--surface-1);
  border-right: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 100;
  transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1), min-width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
}

.sidebar-header {
  padding: 16px 18px;
  border-bottom: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

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

.brand-badge {
  width: 34px;
  height: 34px;
  min-width: 34px;
  background: linear-gradient(135deg, #5e6ad2 0%, #3b4cb8 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  box-shadow: 0 0 16px var(--primary-glow);
}

.brand-text {
  display: flex;
  flex-direction: column;
  white-space: nowrap;
  transition: opacity 0.2s ease;
}

.brand-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.2px;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-tag {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  background: var(--surface-3);
  color: var(--primary-hover);
  border: 1px solid var(--hairline-strong);
  padding: 1px 5px;
  border-radius: 4px;
}

.brand-sub {
  font-size: 11px;
  color: var(--ink-subtle);
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.nav-group-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--ink-tertiary);
  padding: 0 10px 6px 10px;
  white-space: nowrap;
}

.nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.nav-item a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--ink-muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.15s ease;
  position: relative;
  white-space: nowrap;
}

.nav-item a:hover {
  background: var(--surface-2);
  color: var(--ink);
}

.nav-item.active a,
.nav-item a.active {
  background: var(--surface-3);
  color: var(--ink);
  font-weight: 600;
  border: 1px solid var(--hairline-strong);
}

.nav-item.active a::before,
.nav-item a.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  background: var(--primary);
  border-radius: 0 2px 2px 0;
}

.nav-item a .nav-icon {
  width: 18px;
  height: 18px;
  min-width: 18px;
  color: var(--ink-subtle);
  transition: color 0.15s;
}

.nav-item:hover .nav-icon,
.nav-item.active .nav-icon {
  color: var(--primary-hover);
}

.nav-badge {
  margin-left: auto;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: var(--radius-full);
  background: var(--surface-4);
  color: var(--ink-subtle);
}

.nav-badge.danger {
  background: var(--status-breakdown-bg);
  color: var(--status-breakdown);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid var(--hairline);
  background: var(--surface-1);
}

.shift-info-card {
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.shift-status-dot {
  width: 8px;
  height: 8px;
  min-width: 8px;
  border-radius: 50%;
  background: var(--status-hauling);
  box-shadow: 0 0 8px var(--status-hauling);
}

/* ==========================================================================
   SIDEBAR COLLAPSED MODE
   ========================================================================== */

.sidebar-collapsed .app-sidebar {
  width: 68px;
  min-width: 68px;
}

.sidebar-collapsed .brand-text,
.sidebar-collapsed .nav-group-label,
.sidebar-collapsed .nav-item a span,
.sidebar-collapsed .nav-badge,
.sidebar-collapsed .sidebar-footer .shift-details,
.sidebar-collapsed .quick-insights-container {
  display: none !important;
}

.sidebar-collapsed .sidebar-header {
  padding: 16px 12px;
  justify-content: center;
}

.sidebar-collapsed .nav-item a {
  justify-content: center;
  padding: 10px;
}

.sidebar-collapsed .nav-item.active a::before {
  left: 0;
}

.sidebar-collapsed .sidebar-footer {
  padding: 12px;
  display: flex;
  justify-content: center;
}

.sidebar-collapsed .shift-info-card {
  padding: 8px;
  justify-content: center;
}

/* ==========================================================================
   MAIN CONTENT AREA & TOP HEADER
   ========================================================================== */

.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow-x: hidden;
}

.top-header {
  height: 56px;
  background: var(--surface-1);
  border-bottom: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  position: sticky;
  top: 0;
  z-index: 90;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
  gap: 12px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex-shrink: 1;
  overflow: hidden;
}

.page-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--ink-subtle);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-breadcrumbs .divider {
  color: var(--ink-tertiary);
  flex-shrink: 0;
}

.page-breadcrumbs .current {
  color: var(--ink);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 1440px) {
  .breadcrumb-prefix {
    display: none !important;
  }
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  flex-wrap: nowrap;
}

/* Icon Buttons (Theme, Sidebar, & Settings Toggle) */
.btn-icon-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: var(--surface-2);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-sm);
  color: var(--ink-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-icon-toggle:hover {
  background: var(--surface-3);
  color: var(--ink);
  border-color: var(--primary);
}

.btn-icon-toggle svg,
.btn-icon-toggle i,
.btn svg,
.btn i,
.color-swatch-btn svg {
  pointer-events: none;
}

.live-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--status-hauling);
  background: var(--status-hauling-bg);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(39, 166, 68, 0.3);
}

.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--status-hauling);
  animation: pulse-glow 1.6s infinite;
}

@keyframes pulse-glow {
  0% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(39, 166, 68, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 6px rgba(39, 166, 68, 0); }
  100% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(39, 166, 68, 0); }
}

/* Content Viewport */
.content-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ==========================================================================
   KPI CARDS & PANELS
   ========================================================================== */

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.kpi-card {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.2s, transform 0.2s, background-color 0.25s;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.kpi-card:hover {
  border-color: var(--hairline-strong);
  transform: translateY(-1px);
}

.kpi-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.kpi-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-subtle);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.kpi-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-hover);
}

.kpi-value-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.kpi-value {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.8px;
}

.kpi-unit {
  font-size: 12px;
  color: var(--ink-subtle);
  font-weight: 500;
}

.kpi-trend {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
}

.kpi-trend.positive {
  background: var(--status-hauling-bg);
  color: var(--status-hauling);
}

.kpi-trend.negative {
  background: var(--status-breakdown-bg);
  color: var(--status-breakdown);
}

.kpi-trend.neutral {
  background: var(--surface-3);
  color: var(--ink-subtle);
}

/* Card Panels */
.panel {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.panel-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.panel-title-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.panel-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.2px;
}

.panel-subtitle {
  font-size: 12px;
  color: var(--ink-subtle);
}

.panel-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-body {
  padding: 20px;
  flex: 1;
}

/* ==========================================================================
   BUTTONS & FORMS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 7px 14px;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-sans);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary-focus);
}

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 0 14px var(--primary-glow);
}

.btn-secondary {
  background: var(--surface-2);
  color: var(--ink);
  border-color: var(--hairline-strong);
}

.btn-secondary:hover {
  background: var(--surface-3);
  border-color: var(--hairline-tertiary);
}

.btn-ghost {
  background: transparent;
  color: var(--ink-muted);
  border-color: transparent;
}

.btn-ghost:hover {
  background: var(--surface-2);
  color: var(--ink);
}

.btn-sm {
  padding: 5px 11px;
  font-size: 11.5px;
  line-height: 1.2;
  gap: 6px;
}

.btn-sm i,
.btn-sm svg {
  width: 13px !important;
  height: 13px !important;
  flex-shrink: 0;
}

/* Form Controls */
.input, .select {
  background: var(--surface-2);
  border: 1px solid var(--hairline-strong);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 13px;
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.input:focus, .select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

.input-search {
  padding-left: 32px;
}

.search-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.search-wrapper svg {
  position: absolute;
  left: 10px;
  width: 15px;
  height: 15px;
  color: var(--ink-subtle);
  pointer-events: none;
}

/* Status Badges */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.status-pill::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.status-loading {
  background: var(--status-loading-bg);
  color: var(--status-loading);
  border: 1px solid rgba(0, 240, 255, 0.3);
}
.status-loading::before { background: var(--status-loading); }

.status-hauling {
  background: var(--status-hauling-bg);
  color: var(--status-hauling);
  border: 1px solid rgba(39, 166, 68, 0.3);
}
.status-hauling::before { background: var(--status-hauling); }

.status-dumping {
  background: var(--status-dumping-bg);
  color: var(--status-dumping);
  border: 1px solid rgba(168, 85, 247, 0.3);
}
.status-dumping::before { background: var(--status-dumping); }

.status-return {
  background: var(--status-return-bg);
  color: var(--status-return);
  border: 1px solid rgba(59, 130, 246, 0.3);
}
.status-return::before { background: var(--status-return); }

.status-idle {
  background: var(--status-idle-bg);
  color: var(--status-idle);
  border: 1px solid rgba(245, 158, 11, 0.3);
}
.status-idle::before { background: var(--status-idle); }

.status-breakdown {
  background: var(--status-breakdown-bg);
  color: var(--status-breakdown);
  border: 1px solid rgba(239, 68, 68, 0.3);
}
.status-breakdown::before { background: var(--status-breakdown); }

/* Maintenance Status Badges */
.status-overdue {
  background: rgba(239, 68, 68, 0.18) !important;
  color: #ef4444 !important;
  border: 1px solid rgba(239, 68, 68, 0.4) !important;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.status-overdue::before { background: #ef4444; }

.status-soon {
  background: rgba(245, 158, 11, 0.18) !important;
  color: #f59e0b !important;
  border: 1px solid rgba(245, 158, 11, 0.4) !important;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.status-soon::before { background: #f59e0b; }

.status-normal {
  background: rgba(34, 197, 94, 0.18) !important;
  color: #22c55e !important;
  border: 1px solid rgba(34, 197, 94, 0.4) !important;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.status-normal::before { background: #22c55e; }

.status-ws {
  background: rgba(59, 130, 246, 0.18) !important;
  color: #3b82f6 !important;
  border: 1px solid rgba(59, 130, 246, 0.4) !important;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.status-ws::before { background: #3b82f6; }

.service-chip {
  background: var(--surface-3);
  color: var(--ink);
  border: 1px solid var(--hairline-strong);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
}

/* Tables */
.table-container {
  width: 100%;
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}

.table th {
  padding: 10px 14px;
  background: var(--surface-2);
  color: var(--ink-subtle);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--hairline);
  white-space: nowrap;
}

.table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--hairline);
  color: var(--ink-muted);
  vertical-align: middle;
}

.table tr:hover td {
  background: var(--surface-2);
  color: var(--ink);
}

.table .mono {
  font-family: var(--font-mono);
  font-size: 12px;
}

/* ==========================================================================
   INTERACTIVE MAP & SCRUBBER
   ========================================================================== */

.map-view-wrapper {
  position: relative;
  width: 100%;
  height: 600px;
  background: var(--surface-2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
}

#fms-map, #replay-map {
  width: 100%;
  height: 100%;
  z-index: 1;
}

.map-overlay-hud {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 10;
  display: flex;
  gap: 10px;
}

.map-hud-stat {
  background: var(--surface-1);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-md);
  color: var(--ink);
}

.map-hud-stat .num {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
}

.map-legend {
  position: absolute;
  bottom: 16px;
  right: 16px;
  z-index: 10;
  background: var(--surface-1);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 11px;
  box-shadow: var(--shadow-md);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-muted);
}

/* Replay Controls */
.replay-controls-bar {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-sm);
}

.timeline-scrubber-slider {
  width: 100%;
  -webkit-appearance: none;
  height: 6px;
  border-radius: 3px;
  background: var(--surface-3);
  outline: none;
}

.timeline-scrubber-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid #fff;
  cursor: pointer;
  box-shadow: 0 0 10px var(--primary-glow);
}

/* Modals */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

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

.modal-dialog {
  background: var(--surface-1);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 680px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  max-height: 85vh;
  overflow: hidden;
}

/* Truck Leaflet Marker */
.truck-marker {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--surface-1);
  border: 2px solid #fff;
  box-shadow: 0 0 10px rgba(0,0,0,0.5);
  transition: transform 0.2s;
}

.truck-marker.hauling { border-color: var(--status-hauling); color: var(--status-hauling); }
.truck-marker.loading { border-color: var(--status-loading); color: var(--status-loading); }
.truck-marker.dumping { border-color: var(--status-dumping); color: var(--status-dumping); }
.truck-marker.idle { border-color: var(--status-idle); color: var(--status-idle); }
.truck-marker.breakdown { border-color: var(--status-breakdown); color: var(--status-breakdown); }

/* Responsive */
@media (max-width: 1024px) {
  .app-sidebar {
    width: 68px;
    min-width: 68px;
  }
  .brand-text, .nav-group-label, .nav-item a span, .nav-badge, .shift-info-card .shift-details, .quick-insights-container {
    display: none !important;
  }
  .nav-item a {
    justify-content: center;
    padding: 10px;
  }
}

/* ==========================================================================
   THEME COLOR ACCENTS (Customizable UI Palette & Header Theming)
   ========================================================================== */

/* DEFAULT (Clean White Header in Light Mode, Pure Dark in Dark Mode) */
[data-accent="default"],
:root:not([data-accent]) {
  --primary: #5e6ad2;
  --primary-hover: #828fff;
  --primary-focus: #5e69d1;
  --primary-glow: rgba(94, 106, 210, 0.25);
  --brand-gradient: linear-gradient(135deg, #5e6ad2 0%, #3b4cb8 100%);
}

[data-theme="light"][data-accent="default"],
[data-theme="light"]:not([data-accent]) {
  --primary: #4f5cd1;
  --primary-hover: #3b48b8;
  --primary-focus: #4350c2;
  --primary-glow: rgba(79, 92, 209, 0.2);
  --header-bg: #ffffff;
  --header-ink: #0f172a;
  --header-ink-subtle: #64748b;
  --header-btn-bg: #f1f5f9;
  --header-btn-border: #cbd5e1;
  --brand-gradient: linear-gradient(135deg, #5e6ad2 0%, #3b4cb8 100%);
}

[data-theme="light"][data-accent="default"] .top-header,
[data-theme="light"]:not([data-accent]) .top-header {
  background: #ffffff !important;
  border-bottom: 1px solid #e2e8f0 !important;
  color: #0f172a !important;
}

[data-theme="light"][data-accent="default"] .top-header .page-breadcrumbs .current,
[data-theme="light"]:not([data-accent]) .top-header .page-breadcrumbs .current {
  color: #0f172a !important;
}

[data-theme="light"][data-accent="default"] .top-header .page-breadcrumbs span,
[data-theme="light"]:not([data-accent]) .top-header .page-breadcrumbs span {
  color: #64748b !important;
}

[data-theme="light"][data-accent="default"] .top-header .btn-icon-toggle,
[data-theme="light"]:not([data-accent]) .top-header .btn-icon-toggle {
  background: #f1f5f9 !important;
  color: #334155 !important;
  border-color: #cbd5e1 !important;
}

[data-theme="light"][data-accent="default"] .top-header .btn-icon-toggle:hover,
[data-theme="light"]:not([data-accent]) .top-header .btn-icon-toggle:hover {
  background: #e2e8f0 !important;
  color: #0f172a !important;
}

[data-theme="light"][data-accent="default"] .top-header #live-time-display,
[data-theme="light"]:not([data-accent]) .top-header #live-time-display {
  background: #f1f5f9 !important;
  color: #334155 !important;
  border-color: #e2e8f0 !important;
}

[data-theme="light"][data-accent="default"] .top-header .btn-secondary,
[data-theme="light"]:not([data-accent]) .top-header .btn-secondary {
  background: #f1f5f9 !important;
  color: #0f172a !important;
  border-color: #cbd5e1 !important;
}

[data-theme="light"][data-accent="default"] .top-header .btn-secondary:hover,
[data-theme="light"]:not([data-accent]) .top-header .btn-secondary:hover {
  background: #e2e8f0 !important;
}

[data-theme="light"][data-accent="default"] .top-header .live-indicator,
[data-theme="light"]:not([data-accent]) .top-header .live-indicator {
  background: rgba(22, 163, 74, 0.12) !important;
  color: #16a34a !important;
  border-color: rgba(22, 163, 74, 0.3) !important;
}

[data-theme="light"][data-accent="default"] .top-header .live-indicator .pulse-dot,
[data-theme="light"]:not([data-accent]) .top-header .live-indicator .pulse-dot {
  background: #16a34a !important;
  box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.7);
}

/* DARK MODE ACCENT THEMES */
[data-accent="indigo"] {
  --primary: #5e6ad2;
  --primary-hover: #828fff;
  --primary-focus: #5e69d1;
  --primary-glow: rgba(94, 106, 210, 0.25);
  --brand-gradient: linear-gradient(135deg, #5e6ad2 0%, #3b4cb8 100%);
}

[data-accent="emerald"] {
  --primary: #10b981;
  --primary-hover: #34d399;
  --primary-focus: #059669;
  --primary-glow: rgba(16, 185, 129, 0.25);
  --brand-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

[data-accent="ocean"] {
  --primary: #00f0ff;
  --primary-hover: #38bdf8;
  --primary-focus: #0284c7;
  --primary-glow: rgba(0, 240, 255, 0.25);
  --brand-gradient: linear-gradient(135deg, #0284c7 0%, #00f0ff 100%);
}

[data-accent="navy"] {
  --primary: #60a5fa;
  --primary-hover: #93c5fd;
  --primary-focus: #3b82f6;
  --primary-glow: rgba(96, 165, 250, 0.25);
  --brand-gradient: linear-gradient(135deg, #334155 0%, #1e293b 100%);
}

/* LIGHT MODE ACCENT THEMES (With JM Cloud / DMS-Style Themed Header) */
[data-theme="light"][data-accent="indigo"] {
  --primary: #4f5cd1;
  --primary-hover: #3b48b8;
  --primary-focus: #4350c2;
  --primary-glow: rgba(79, 92, 209, 0.25);
  --header-bg: #4338ca;
  --header-ink: #ffffff;
  --header-ink-subtle: rgba(255, 255, 255, 0.85);
  --header-btn-bg: rgba(255, 255, 255, 0.15);
  --header-btn-border: rgba(255, 255, 255, 0.3);
  --brand-gradient: linear-gradient(135deg, #5e6ad2 0%, #4338ca 100%);
}

[data-theme="light"][data-accent="emerald"] {
  --primary: #16a34a;
  --primary-hover: #15803d;
  --primary-focus: #166534;
  --primary-glow: rgba(22, 163, 74, 0.25);
  --header-bg: #15803d;
  --header-ink: #ffffff;
  --header-ink-subtle: rgba(255, 255, 255, 0.85);
  --header-btn-bg: rgba(255, 255, 255, 0.15);
  --header-btn-border: rgba(255, 255, 255, 0.3);
  --brand-gradient: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
}

[data-theme="light"][data-accent="ocean"] {
  --primary: #0284c7;
  --primary-hover: #0369a1;
  --primary-focus: #075985;
  --primary-glow: rgba(2, 132, 199, 0.25);
  --header-bg: #0369a1;
  --header-ink: #ffffff;
  --header-ink-subtle: rgba(255, 255, 255, 0.85);
  --header-btn-bg: rgba(255, 255, 255, 0.15);
  --header-btn-border: rgba(255, 255, 255, 0.3);
  --brand-gradient: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
}

[data-theme="light"][data-accent="navy"] {
  --primary: #334155;
  --primary-hover: #1e293b;
  --primary-focus: #0f172a;
  --primary-glow: rgba(51, 65, 85, 0.25);
  --header-bg: #1e293b;
  --header-ink: #ffffff;
  --header-ink-subtle: rgba(255, 255, 255, 0.85);
  --header-btn-bg: rgba(255, 255, 255, 0.15);
  --header-btn-border: rgba(255, 255, 255, 0.3);
  --brand-gradient: linear-gradient(135deg, #334155 0%, #1e293b 100%);
}

/* ==========================================================================
   THEMED HEADER STYLES (Light Mode with Accents vs Clean White Default)
   ========================================================================== */

/* 1. CLEAN WHITE THEME (Default) */
[data-theme="light"][data-accent="default"] .top-header,
[data-theme="light"]:not([data-accent]) .top-header {
  background: #ffffff !important;
  border-bottom: 1px solid #e2e8f0 !important;
  color: #0f172a !important;
}

[data-theme="light"][data-accent="default"] .top-header .page-breadcrumbs .current,
[data-theme="light"]:not([data-accent]) .top-header .page-breadcrumbs .current {
  color: #0f172a !important;
}

[data-theme="light"][data-accent="default"] .top-header .page-breadcrumbs span,
[data-theme="light"]:not([data-accent]) .top-header .page-breadcrumbs span {
  color: #64748b !important;
}

[data-theme="light"][data-accent="default"] .top-header .page-breadcrumbs .divider,
[data-theme="light"]:not([data-accent]) .top-header .page-breadcrumbs .divider {
  color: #94a3b8 !important;
}

[data-theme="light"][data-accent="default"] .top-header .btn-icon-toggle,
[data-theme="light"]:not([data-accent]) .top-header .btn-icon-toggle {
  background: #f1f5f9 !important;
  color: #334155 !important;
  border-color: #cbd5e1 !important;
}

[data-theme="light"][data-accent="default"] .top-header .btn-icon-toggle:hover,
[data-theme="light"]:not([data-accent]) .top-header .btn-icon-toggle:hover {
  background: #e2e8f0 !important;
  color: #0f172a !important;
}

[data-theme="light"][data-accent="default"] .top-header .btn-secondary,
[data-theme="light"]:not([data-accent]) .top-header .btn-secondary {
  background: #f1f5f9 !important;
  color: #0f172a !important;
  border-color: #cbd5e1 !important;
}

[data-theme="light"][data-accent="default"] .top-header .btn-secondary:hover,
[data-theme="light"]:not([data-accent]) .top-header .btn-secondary:hover {
  background: #e2e8f0 !important;
  color: #0f172a !important;
}

[data-theme="light"][data-accent="default"] .top-header .live-indicator,
[data-theme="light"]:not([data-accent]) .top-header .live-indicator {
  background: rgba(22, 163, 74, 0.12) !important;
  color: #16a34a !important;
  border-color: rgba(22, 163, 74, 0.35) !important;
}

[data-theme="light"][data-accent="default"] .top-header .live-indicator .pulse-dot,
[data-theme="light"]:not([data-accent]) .top-header .live-indicator .pulse-dot {
  background: #16a34a !important;
  box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.7);
}

[data-theme="light"][data-accent="default"] .top-header #live-clock-wita,
[data-theme="light"]:not([data-accent]) .top-header #live-clock-wita {
  color: #0f172a !important;
}

[data-theme="light"][data-accent="default"] .top-header .header-action-icon,
[data-theme="light"]:not([data-accent]) .top-header .header-action-icon {
  color: #475569 !important;
}

[data-theme="light"][data-accent="default"] .top-header #header-user-name,
[data-theme="light"]:not([data-accent]) .top-header #header-user-name {
  color: #0f172a !important;
}

[data-theme="light"][data-accent="default"] .top-header #header-user-role,
[data-theme="light"]:not([data-accent]) .top-header #header-user-role {
  color: #4f5cd1 !important;
}

/* 2. COLORED ACCENT THEMES (Emerald, Indigo, Ocean, Navy) */
[data-theme="light"][data-accent="indigo"] .top-header,
[data-theme="light"][data-accent="emerald"] .top-header,
[data-theme="light"][data-accent="ocean"] .top-header,
[data-theme="light"][data-accent="navy"] .top-header {
  background: var(--header-bg, #4338ca) !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.12) !important;
  color: #ffffff !important;
}

[data-theme="light"][data-accent="indigo"] .top-header .page-breadcrumbs .current,
[data-theme="light"][data-accent="emerald"] .top-header .page-breadcrumbs .current,
[data-theme="light"][data-accent="ocean"] .top-header .page-breadcrumbs .current,
[data-theme="light"][data-accent="navy"] .top-header .page-breadcrumbs .current {
  color: var(--header-ink, #ffffff) !important;
}

[data-theme="light"][data-accent="indigo"] .top-header .page-breadcrumbs span,
[data-theme="light"][data-accent="emerald"] .top-header .page-breadcrumbs span,
[data-theme="light"][data-accent="ocean"] .top-header .page-breadcrumbs span,
[data-theme="light"][data-accent="navy"] .top-header .page-breadcrumbs span {
  color: var(--header-ink-subtle, rgba(255, 255, 255, 0.85)) !important;
}

[data-theme="light"][data-accent="indigo"] .top-header .btn-icon-toggle,
[data-theme="light"][data-accent="emerald"] .top-header .btn-icon-toggle,
[data-theme="light"][data-accent="ocean"] .top-header .btn-icon-toggle,
[data-theme="light"][data-accent="navy"] .top-header .btn-icon-toggle {
  background: var(--header-btn-bg, rgba(255, 255, 255, 0.18)) !important;
  color: var(--header-ink, #ffffff) !important;
  border-color: var(--header-btn-border, rgba(255, 255, 255, 0.35)) !important;
}

[data-theme="light"][data-accent="indigo"] .top-header .btn-icon-toggle:hover,
[data-theme="light"][data-accent="emerald"] .top-header .btn-icon-toggle:hover,
[data-theme="light"][data-accent="ocean"] .top-header .btn-icon-toggle:hover,
[data-theme="light"][data-accent="navy"] .top-header .btn-icon-toggle:hover {
  background: rgba(255, 255, 255, 0.28) !important;
}

[data-theme="light"][data-accent="indigo"] .top-header .btn-secondary,
[data-theme="light"][data-accent="emerald"] .top-header .btn-secondary,
[data-theme="light"][data-accent="ocean"] .top-header .btn-secondary,
[data-theme="light"][data-accent="navy"] .top-header .btn-secondary {
  background: var(--header-btn-bg, rgba(255, 255, 255, 0.18)) !important;
  color: var(--header-ink, #ffffff) !important;
  border-color: var(--header-btn-border, rgba(255, 255, 255, 0.35)) !important;
}

[data-theme="light"][data-accent="indigo"] .top-header .btn-secondary:hover,
[data-theme="light"][data-accent="emerald"] .top-header .btn-secondary:hover,
[data-theme="light"][data-accent="ocean"] .top-header .btn-secondary:hover,
[data-theme="light"][data-accent="navy"] .top-header .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.28) !important;
}

[data-theme="light"][data-accent="indigo"] .top-header .live-indicator,
[data-theme="light"][data-accent="emerald"] .top-header .live-indicator,
[data-theme="light"][data-accent="ocean"] .top-header .live-indicator,
[data-theme="light"][data-accent="navy"] .top-header .live-indicator {
  background: rgba(255, 255, 255, 0.2) !important;
  color: #ffffff !important;
  border-color: rgba(255, 255, 255, 0.4) !important;
}

[data-theme="light"][data-accent="indigo"] .top-header .live-indicator .pulse-dot,
[data-theme="light"][data-accent="emerald"] .top-header .live-indicator .pulse-dot,
[data-theme="light"][data-accent="ocean"] .top-header .live-indicator .pulse-dot,
[data-theme="light"][data-accent="navy"] .top-header .live-indicator .pulse-dot {
  background: #4ade80 !important;
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.7);
}

[data-theme="light"][data-accent="indigo"] .top-header .header-action-icon,
[data-theme="light"][data-accent="emerald"] .top-header .header-action-icon,
[data-theme="light"][data-accent="ocean"] .top-header .header-action-icon,
[data-theme="light"][data-accent="navy"] .top-header .header-action-icon,
[data-theme="light"][data-accent="indigo"] .top-header i[data-lucide],
[data-theme="light"][data-accent="emerald"] .top-header i[data-lucide],
[data-theme="light"][data-accent="ocean"] .top-header i[data-lucide],
[data-theme="light"][data-accent="navy"] .top-header i[data-lucide],
[data-theme="light"][data-accent="indigo"] .top-header svg,
[data-theme="light"][data-accent="emerald"] .top-header svg,
[data-theme="light"][data-accent="ocean"] .top-header svg,
[data-theme="light"][data-accent="navy"] .top-header svg {
  color: #ffffff !important;
}

[data-theme="light"][data-accent="indigo"] .top-header #header-user-name,
[data-theme="light"][data-accent="emerald"] .top-header #header-user-name,
[data-theme="light"][data-accent="ocean"] .top-header #header-user-name,
[data-theme="light"][data-accent="navy"] .top-header #header-user-name {
  color: #ffffff !important;
}

[data-theme="light"][data-accent="indigo"] .top-header #header-user-role,
[data-theme="light"][data-accent="emerald"] .top-header #header-user-role,
[data-theme="light"][data-accent="ocean"] .top-header #header-user-role,
[data-theme="light"][data-accent="navy"] .top-header #header-user-role {
  color: #fde047 !important;
}

[data-theme="light"][data-accent="indigo"] .top-header #live-clock-wita,
[data-theme="light"][data-accent="emerald"] .top-header #live-clock-wita,
[data-theme="light"][data-accent="ocean"] .top-header #live-clock-wita,
[data-theme="light"][data-accent="navy"] .top-header #live-clock-wita {
  color: #ffffff !important;
}

/* Header Notification Badges - High Contrast Solid Colors for all Themes */
.header-notif-pill {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  display: inline-flex;
  align-items: center;
  gap: 3px;
  line-height: 1.2;
  white-space: nowrap;
}

.header-notif-alert {
  background: #dc2626 !important;
  color: #ffffff !important;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.45);
}

.header-notif-maint {
  background: #f59e0b !important;
  color: #0f172a !important;
  font-weight: 800 !important;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.45);
}

.header-action-icon {
  color: var(--primary);
  transition: color 0.15s ease;
}

.brand-badge {
  background: var(--brand-gradient, linear-gradient(135deg, #5e6ad2 0%, #3b4cb8 100%)) !important;
}

/* ==========================================================================
   SETTINGS DROPDOWN POPOVER (DMS Style)
   ========================================================================== */

.settings-dropdown-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.settings-popover {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 290px;
  background: var(--surface-1);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 14px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.settings-popover.active {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.settings-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--ink-subtle);
  margin-bottom: 8px;
}

.settings-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--ink);
}

/* Switch Toggle UI */
.switch-control {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 20px;
}

.switch-control input {
  opacity: 0;
  width: 0;
  height: 0;
}

.switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--surface-3);
  border: 1px solid var(--hairline-strong);
  transition: .2s;
  border-radius: 20px;
}

.switch-slider:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 2px;
  bottom: 2px;
  background-color: #fff;
  transition: .2s;
  border-radius: 50%;
}

.switch-control input:checked + .switch-slider {
  background-color: var(--primary);
  border-color: var(--primary-focus);
}

.switch-control input:checked + .switch-slider:before {
  transform: translateX(16px);
}

/* Volume Slider */
.volume-slider {
  width: 100%;
  -webkit-appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--surface-3);
  outline: none;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid #fff;
  cursor: pointer;
}

/* Theme Color Swatches */
.theme-colors-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.color-swatch-btn {
  height: 32px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: transform 0.15s ease, border-color 0.15s ease;
  position: relative;
}

.color-swatch-btn:hover {
  transform: scale(1.06);
}

.color-swatch-btn.active {
  border-color: #fff;
  box-shadow: 0 0 0 2px var(--primary-glow);
}