:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --border-focus: #3b82f6;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] {
  --primary: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-light: #1e293b;
  --bg-main: #0b1120;
  --bg-card: #131c31;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border: #1e2d4a;
  --border-focus: #60a5fa;
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 20px -3px rgba(0, 0, 0, 0.6);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 24px 20px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

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

.brand-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

.brand-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

/* User Profile Badge & Menu */
.user-menu-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

.user-role-badge {
  font-size: 0.72rem;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
}

.role-admin { background: #dbeafe; color: #1e40af; }
.role-editor { background: #dcfce7; color: #15803d; }
.role-viewer { background: #f1f5f9; color: #475569; }

[data-theme="dark"] .role-admin { background: #1e3a8a; color: #93c5fd; }
[data-theme="dark"] .role-editor { background: #064e3b; color: #86efac; }
[data-theme="dark"] .role-viewer { background: #1e293b; color: #cbd5e1; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  font-size: 0.88rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease-in-out;
  text-decoration: none;
  line-height: 1.2;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-main);
  border-color: var(--border);
}

.btn-secondary:hover {
  background-color: var(--primary-light);
  border-color: var(--border-focus);
}

.btn-danger {
  background-color: #fee2e2;
  color: var(--danger);
  border-color: #fecaca;
}

.btn-danger:hover {
  background-color: #fecaca;
}

[data-theme="dark"] .btn-danger {
  background-color: #450a0a;
  color: #f87171;
  border-color: #7f1d1d;
}

.btn-icon-sm {
  padding: 7px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  cursor: pointer;
  color: var(--text-muted);
}

.btn-icon-sm:hover {
  background: var(--primary-light);
  color: var(--text-main);
}

/* Dashboard / Stats Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  padding: 18px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 16px;
}

.stat-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon.blue { background: #dbeafe; color: #1d4ed8; }
.stat-icon.green { background: #d1fae5; color: #047857; }
.stat-icon.amber { background: #fef3c7; color: #b45309; }
.stat-icon.purple { background: #ede9fe; color: #6d28d9; }

[data-theme="dark"] .stat-icon.blue { background: #1e3a8a; color: #93c5fd; }
[data-theme="dark"] .stat-icon.green { background: #064e3b; color: #6ee7b7; }
[data-theme="dark"] .stat-icon.amber { background: #78350f; color: #fde68a; }
[data-theme="dark"] .stat-icon.purple { background: #4c1d95; color: #ddd6fe; }

.stat-content {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Category distribution breakdown */
.category-breakdown-bar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.breakdown-items {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.breakdown-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 500;
}

.breakdown-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

/* Control Panel */
.controls-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
}

.filter-group {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.form-control {
  padding: 8px 12px;
  font-size: 0.88rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-main);
  outline: none;
  transition: border-color 0.15s ease-in-out;
}

.form-control:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* Trips Table */
.table-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.table-header-title {
  padding: 16px 20px;
  font-size: 1.05rem;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.trips-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.trips-table th {
  background: var(--primary-light);
  padding: 12px 18px;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.trips-table td {
  padding: 14px 18px;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.trips-table tr:hover {
  background-color: var(--primary-light);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.2;
}

.badge-roundtrip {
  background: #e0e7ff;
  color: #3730a3;
  border: 1px solid #c7d2fe;
}

[data-theme="dark"] .badge-roundtrip {
  background: #1e1b4b;
  color: #c7d2fe;
  border-color: #312e81;
}

.badge-legs {
  background: var(--primary-light);
  color: var(--text-main);
  border: 1px solid var(--border);
  cursor: pointer;
}

.badge-legs:hover {
  border-color: var(--border-focus);
}

/* Sub-legs nested list */
.legs-subrow {
  background-color: var(--bg-main);
  padding: 0;
}

.legs-wrapper {
  padding: 14px 24px;
  border-left: 3px solid var(--primary);
  margin: 6px 16px 12px 16px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.legs-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.leg-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 0.85rem;
}

.leg-item:last-child {
  border-bottom: none;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-muted);
}

.empty-state svg {
  width: 52px;
  height: 52px;
  stroke: var(--text-muted);
  margin-bottom: 12px;
}

.empty-state h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 4px;
}

/* Modal styles */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  padding: 16px;
}

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

.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 650px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  transform: translateY(10px);
  transition: transform 0.2s ease;
}

.modal-box.modal-lg {
  max-width: 900px;
}

.modal-backdrop.active .modal-box {
  transform: translateY(0);
}

.modal-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  color: var(--text-muted);
}

.modal-close:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 20px 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  background: var(--primary-light);
  border-bottom-left-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}

/* Form Layout */
.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-label-hint {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-muted);
}

/* Live Kilometer Calculation Box */
.km-calc-panel {
  background: var(--primary-light);
  border: 1px solid var(--border-focus);
  border-radius: var(--radius-md);
  padding: 16px;
}

.km-calc-header {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.live-badge {
  background: var(--primary);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Checkbox Toggle */
.checkbox-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  cursor: pointer;
  user-select: none;
  transition: all 0.15s ease;
}

.checkbox-card:hover {
  background: var(--primary-light);
  border-color: var(--border-focus);
}

.checkbox-card input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--primary);
}

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

.checkbox-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
}

.checkbox-subtext {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Sub-legs builder in modal */
.legs-builder {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px;
  background: var(--bg-card);
}

.legs-builder-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.leg-row-input {
  display: grid;
  grid-template-columns: 2fr 2fr 1fr 34px;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.btn-remove-leg {
  background: #fee2e2;
  color: #dc2626;
  border: none;
  border-radius: 4px;
  height: 36px;
  width: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.btn-remove-leg:hover {
  background: #fecaca;
}

[data-theme="dark"] .btn-remove-leg {
  background: #450a0a;
  color: #f87171;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #1e293b;
  color: #ffffff;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 2000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.success { background: #065f46; }
.toast.error { background: #991b1b; }

/* Monthly Report Specific Styles */
.monthly-report-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.monthly-stats-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin: 12px 0 16px 0;
}

.m-stat-box {
  background: var(--primary-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}

.m-stat-val {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.m-stat-lbl {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* User management styles */
.user-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}

/* Print Stylesheet for Monthly Report */
@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }
  .app-header, .stats-grid, .category-breakdown-bar, .controls-card, .table-card, .toast, .modal-backdrop:not(#monthlyReportModal) {
    display: none !important;
  }
  #monthlyReportModal {
    position: static !important;
    background: none !important;
    backdrop-filter: none !important;
    opacity: 1 !important;
    pointer-events: auto !important;
    padding: 0 !important;
  }
  #monthlyReportModal .modal-box {
    box-shadow: none !important;
    border: none !important;
    max-width: 100% !important;
    max-height: none !important;
    transform: none !important;
  }
  #monthlyReportModal .modal-header,
  #monthlyReportModal .modal-footer,
  #monthlyReportModal .btn,
  #monthlyReportControls {
    display: none !important;
  }
  .m-stat-box {
    background: #f8fafc !important;
    border: 1px solid #cbd5e1 !important;
  }
  .trips-table th {
    background: #f1f5f9 !important;
    color: #000000 !important;
    border-bottom: 2px solid #000000 !important;
  }
  .trips-table td {
    color: #000000 !important;
    border-bottom: 1px solid #e2e8f0 !important;
  }
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .form-grid-2, .form-grid-3 {
    grid-template-columns: 1fr;
  }
  .leg-row-input {
    grid-template-columns: 1fr;
  }
  .trips-table th, .trips-table td {
    padding: 10px 12px;
  }
}