/* Import premium Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Colors */
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --success: #0d9488;
  --success-light: #f0fdfa;
  --warning: #ea580c;
  --warning-light: #fff7ed;
  --danger: #e11d48;
  --danger-light: #fff1f2;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  
  /* Fonts */
  --font-display: 'Outfit', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Layout details */
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 8px -1px rgba(15, 23, 42, 0.03);
  --shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 10px 10px -5px rgba(15, 23, 42, 0.03);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
}

/* App Container Layout */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
.app-header {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-sm);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-icon {
  background-color: var(--primary-light);
  color: var(--primary);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.brand-title h1 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
}

.brand-title p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

/* Main Content Area */
.main-content {
  flex: 1;
  padding: 2rem;
  max-width: 1600px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.9rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}

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

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

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

.btn-secondary:hover {
  background-color: #f8fafc;
  border-color: #cbd5e1;
}

.btn-success {
  background-color: var(--success);
  color: white;
}

.btn-success:hover {
  background-color: #0b7a70;
}

.btn-icon-only {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-md);
  background-color: white;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.btn-icon-only:hover {
  background-color: #f8fafc;
  color: var(--text-main);
}

/* Import/Upload Area */
.import-section {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 992px) {
  .import-section {
    grid-template-columns: 1fr;
  }
}

.upload-card {
  background-color: var(--bg-card);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.upload-card:hover, .upload-card.dragover {
  border-color: var(--primary);
  background-color: var(--primary-light);
}

.upload-card input[type="file"] {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.upload-icon {
  width: 64px;
  height: 64px;
  background-color: #f1f5f9;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1.75rem;
  transition: var(--transition);
}

.upload-card:hover .upload-icon {
  background-color: white;
  color: var(--primary);
  transform: translateY(-4px);
}

/* Summary Cards (KPIs) */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.kpi-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 1.25rem;
  transition: var(--transition);
}

.kpi-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.kpi-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
}

.kpi-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.kpi-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.kpi-value {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
}

.kpi-subtext {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Color codes for KPI cards */
.kpi-blue .kpi-icon { background-color: var(--primary-light); color: var(--primary); }
.kpi-teal .kpi-icon { background-color: var(--success-light); color: var(--success); }
.kpi-orange .kpi-icon { background-color: var(--warning-light); color: var(--warning); }
.kpi-red .kpi-icon { background-color: var(--danger-light); color: var(--danger); }

/* Dashboard Charts Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 1200px) {
  .dashboard-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

.chart-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.chart-title h3 {
  font-size: 1rem;
  color: var(--text-main);
  font-weight: 600;
}

.chart-container {
  position: relative;
  height: 260px;
  width: 100%;
}

/* Filter panel */
.filter-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-control {
  padding: 0.625rem 0.875rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  font-family: var(--font-body);
  font-size: 0.9rem;
  background-color: white;
  color: var(--text-main);
  outline: none;
  transition: var(--transition);
  width: 100%;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Tabs for Tables */
.tabs-container {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.tabs-header {
  border-bottom: 1px solid var(--border-color);
  background-color: #fafbfc;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 1.5rem;
}

.tabs {
  display: flex;
  gap: 1.5rem;
}

.tab-btn {
  padding: 1.25rem 0.5rem;
  background: none;
  border: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
  cursor: pointer;
  position: relative;
  transition: var(--transition);
}

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

.tab-btn.active {
  color: var(--primary);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--primary);
  border-radius: 3px 3px 0 0;
}

.table-actions {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem 0;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

th {
  background-color: #fafbfc;
  color: var(--text-muted);
  font-weight: 600;
  padding: 0.65rem 0.5rem;
  border-bottom: 1px solid var(--border-color);
  white-space: normal;
  font-size: 0.8rem;
  line-height: 1.25;
  vertical-align: bottom;
}

td {
  padding: 0.65rem 0.5rem;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
  font-size: 0.825rem;
}

.building-cell {
  white-space: normal !important;
  max-width: 160px;
  min-width: 100px;
  word-break: break-word;
}

tr:hover td {
  background-color: #f8fafc;
}

/* Badges for status */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
}

.badge-success {
  background-color: var(--success-light);
  color: var(--success);
  border: 1px solid rgba(13, 148, 136, 0.2);
}

.badge-warning {
  background-color: var(--warning-light);
  color: var(--warning);
  border: 1px solid rgba(234, 88, 12, 0.2);
}

/* Settings Side Panel / Modal Drawer */
.drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

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

.drawer {
  position: fixed;
  top: 0;
  right: -420px;
  width: 420px;
  height: 100%;
  background-color: var(--bg-card);
  box-shadow: var(--shadow-lg);
  z-index: 201;
  display: flex;
  flex-direction: column;
  transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 2rem;
}

.drawer.active {
  right: 0;
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
}

.drawer-body {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.drawer-footer {
  margin-top: 2rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
}

/* Modal for Add / Edit Point */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
  z-index: 250;
  opacity: 0;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s ease;
}

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

.modal {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 500px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.95);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-backdrop.active .modal {
  transform: scale(1);
}

.modal-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #fafbfc;
}

.modal-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-height: 70vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Grid helper for forms */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* Actions in tables */
.action-buttons {
  display: flex;
  gap: 0.35rem;
}

.btn-table-action {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  background-color: white;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

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

.btn-table-action.btn-delete:hover {
  background-color: var(--danger-light);
  color: var(--danger);
  border-color: var(--danger);
}

/* Highlight tags */
.tag-indicator {
  font-family: monospace;
  font-size: 0.8rem;
  background-color: #f1f5f9;
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  color: #334155;
}

/* Utility styles */
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-bold { font-weight: 700; }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.d-none { display: none !important; }

/* Empty state styling */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
  color: var(--text-muted);
  gap: 1rem;
}

.empty-state-icon {
  font-size: 3rem;
  color: #cbd5e1;
}

/* Loading overlays */
.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255,255,255,0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  border-radius: var(--radius-lg);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--primary);
}