/**
 * Flux - Energy Optimizer Styles
 * Modern Dark Theme with Sidebar Navigation
 * (c) KamH GmbH & dxb gmbh
 */

:root {
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --primary-light: #60a5fa;
  --secondary: #64748b;
  --success: #22c55e;
  --success-dark: #16a34a;
  --warning: #f59e0b;
  --danger: #ef4444;
  --bg-dark: #0a0a0f;
  --bg-primary: #111118;
  --bg-secondary: #1a1a24;
  --bg-tertiary: #252532;
  --bg-hover: #2d2d3d;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: #2d2d3d;
  --border-light: #3d3d4d;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
  --transition: all 0.2s ease;
  --sidebar-width: 260px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
}

/* ===================== LOGIN SCREEN ===================== */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-primary) 100%);
  padding: 2rem;
}

.login-box {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.login-logo {
  text-align: center;
  margin-bottom: 2rem;
}

.login-logo h1 {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-logo .subtitle {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.login-form .form-group {
  margin-bottom: 1.25rem;
}

.login-form input {
  height: 48px;
  font-size: 1rem;
}

.login-form .btn {
  width: 100%;
  height: 48px;
  font-size: 1rem;
  margin-top: 0.5rem;
}

.login-divider {
  display: flex;
  align-items: center;
  margin: 1.5rem 0;
  color: var(--text-muted);
  font-size: 0.75rem;
}

.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.login-divider span {
  padding: 0 1rem;
}

.btn-passkey {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  height: 48px;
}

.btn-passkey:hover {
  background: var(--bg-hover);
  border-color: var(--border-light);
}

.login-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--danger);
  color: var(--danger);
  padding: 0.75rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 0.875rem;
  display: none;
}

.login-error.show {
  display: block;
}

/* ===================== APP LAYOUT ===================== */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-primary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 100;
}

.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
}

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

.sidebar-logo h1 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
}

.sidebar-logo .version {
  font-size: 0.625rem;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
}

.sidebar-nav {
  flex: 1;
  padding: 1rem 0;
  overflow-y: auto;
}

.nav-section {
  padding: 0 0.75rem;
  margin-bottom: 1.5rem;
}

.nav-section-title {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding: 0 0.75rem;
  margin-bottom: 0.5rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: var(--radius);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.875rem;
  font-weight: 500;
}

.nav-item:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--primary);
  color: white;
}

.nav-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
}

.user-menu {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
}

.user-menu:hover {
  background: var(--bg-tertiary);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
}

.user-info {
  flex: 1;
  min-width: 0;
}

.user-name {
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

/* Main Content */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  background: var(--bg-dark);
}

.main-header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 50;
}

.page-title {
  font-size: 1.25rem;
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.main-body {
  padding: 1.5rem 2rem;
}

/* ===================== CARDS & PANELS ===================== */
.card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
}

.card-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-header h2 {
  font-size: 1rem;
  font-weight: 600;
}

.card-body {
  padding: 1.5rem;
}

/* ===================== KPI CARDS ===================== */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.kpi-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.kpi-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.kpi-icon.blue { background: rgba(59, 130, 246, 0.15); color: var(--primary); }
.kpi-icon.green { background: rgba(34, 197, 94, 0.15); color: var(--success); }
.kpi-icon.orange { background: rgba(245, 158, 11, 0.15); color: var(--warning); }
.kpi-icon.purple { background: rgba(168, 85, 247, 0.15); color: #a855f7; }

.kpi-content {
  flex: 1;
  min-width: 0;
}

.kpi-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.kpi-value {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
}

.kpi-change {
  font-size: 0.75rem;
  margin-top: 0.25rem;
}

.kpi-change.positive { color: var(--success); }
.kpi-change.negative { color: var(--danger); }

/* ===================== CHART GRID ===================== */
.chart-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.chart-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.chart-card h3 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.chart-container {
  height: 280px;
}

/* ===================== OBJECT SELECTOR ===================== */
.object-selector {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.select-wrapper {
  position: relative;
  min-width: 240px;
}

.select-wrapper select {
  width: 100%;
  appearance: none;
  padding: 0.75rem 2.5rem 0.75rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.875rem;
  cursor: pointer;
}

.select-wrapper::after {
  content: '';
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid var(--text-secondary);
  pointer-events: none;
}

/* ===================== DATA TABLE ===================== */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 0.875rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

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

.data-table tr:hover td {
  background: var(--bg-hover);
}

.data-table .actions {
  display: flex;
  gap: 0.5rem;
}

/* ===================== FORMS ===================== */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 0.875rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

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

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.form-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.input-group {
  display: flex;
}

.input-group input {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.input-group .btn {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  white-space: nowrap;
}

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
}

.btn svg {
  width: 18px;
  height: 18px;
}

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

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

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

.btn-success:hover {
  background: var(--success-dark);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-hover);
}

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

.btn-danger:hover {
  background: #dc2626;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
}

/* ===================== OBJECTS LIST ===================== */
.objects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
}

.object-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  cursor: pointer;
  transition: var(--transition);
}

.object-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.object-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
}

.object-card h3 {
  font-size: 1rem;
  font-weight: 600;
}

.object-card-address {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.object-card-stats {
  display: flex;
  gap: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.object-stat {
  font-size: 0.75rem;
}

.object-stat-value {
  font-weight: 600;
  color: var(--primary);
}

.object-stat-label {
  color: var(--text-muted);
}

/* ===================== MAP ===================== */
.map-container {
  height: 300px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  margin-top: 1rem;
}

#object-map {
  height: 100%;
  width: 100%;
  background: var(--bg-tertiary);
}

/* Leaflet dark mode fixes */
.leaflet-container {
  background: var(--bg-tertiary);
}

.leaflet-popup-content-wrapper {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-radius: var(--radius);
}

.leaflet-popup-tip {
  background: var(--bg-secondary);
}

/* Azimuth marker */
.azimuth-marker {
  background: transparent !important;
  border: none !important;
}

.azimuth-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.azimuth-label {
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-secondary);
  color: #f59e0b;
  font-size: 10px;
  font-weight: 600;
  padding: 1px 4px;
  border-radius: 2px;
  white-space: nowrap;
}

/* ===================== MODALS ===================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal-overlay.show {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow: auto;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  font-size: 1.125rem;
  font-weight: 600;
}

.modal-body {
  padding: 1.5rem;
}

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

/* ===================== USER MANAGEMENT ===================== */
.user-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.user-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  transition: var(--transition);
}

.user-item:hover {
  background: var(--bg-hover);
}

.user-item-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

.user-item-info {
  flex: 1;
}

.user-item-name {
  font-weight: 500;
}

.user-item-email {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.user-item-role {
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  background: var(--bg-secondary);
}

.user-item-role.admin {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

/* ===================== TOAST ===================== */
.toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  padding: 1rem 1.5rem;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  z-index: 2000;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: slideIn 0.3s ease;
  max-width: 400px;
}

.toast.success {
  border-color: var(--success);
}

.toast.success::before {
  content: '';
  width: 4px;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background: var(--success);
  border-radius: var(--radius) 0 0 var(--radius);
}

.toast.error {
  border-color: var(--danger);
}

.toast.error::before {
  content: '';
  width: 4px;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background: var(--danger);
  border-radius: var(--radius) 0 0 var(--radius);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* ===================== UPLOAD ===================== */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.upload-zone:hover {
  border-color: var(--primary);
  background: rgba(59, 130, 246, 0.05);
}

.upload-zone.dragover {
  border-color: var(--primary);
  background: rgba(59, 130, 246, 0.1);
}

.upload-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  color: var(--text-muted);
}

.upload-text {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

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

/* ===================== SIMULATION ===================== */
.mode-description {
  display: flex;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  border-left: 3px solid var(--primary);
}

.mode-desc-icon {
  flex-shrink: 0;
  color: var(--primary);
  margin-top: 0.125rem;
}

.mode-desc-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.simulation-results {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.result-card {
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
}

.result-card.highlight {
  background: linear-gradient(135deg, var(--success) 0%, var(--success-dark) 100%);
  color: white;
}

.result-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.result-card.highlight .result-label {
  color: rgba(255, 255, 255, 0.8);
}

.result-value {
  font-size: 1.5rem;
  font-weight: 700;
}

/* ===================== EMPTY STATE ===================== */
.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text-muted);
}

.empty-state svg {
  width: 64px;
  height: 64px;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.empty-state p {
  font-size: 0.875rem;
}

/* Dashboard Placeholder */
.dashboard-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 2rem;
  min-height: 400px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--border);
}

.dashboard-placeholder svg {
  width: 64px;
  height: 64px;
  margin-bottom: 1.5rem;
  color: var(--text-muted);
  opacity: 0.6;
}

.dashboard-placeholder h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.dashboard-placeholder p {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 300px;
}

/* ===================== VIEWS ===================== */
.view {
  display: none;
}

.view.active {
  display: block;
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 1024px) {
  .chart-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: var(--transition);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .objects-grid {
    grid-template-columns: 1fr;
  }
}

/* ===================== HIDDEN/SHOW UTILITY ===================== */
.hidden {
  display: none !important;
}

/* ===================== DROPDOWN ===================== */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 0.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-width: 180px;
  box-shadow: var(--shadow-lg);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition);
}

.dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.875rem;
}

.dropdown-item:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.dropdown-item.danger {
  color: var(--danger);
}

.dropdown-divider {
  height: 1px;
  background: var(--border);
  margin: 0.5rem 0;
}

/* ===================== AG GRID DARK THEME ===================== */
.ag-theme-alpine-dark {
  --ag-background-color: var(--bg-secondary);
  --ag-header-background-color: var(--bg-tertiary);
  --ag-odd-row-background-color: var(--bg-primary);
  --ag-row-hover-color: var(--bg-hover);
  --ag-border-color: var(--border);
  --ag-header-foreground-color: var(--text-secondary);
  --ag-foreground-color: var(--text-primary);
  --ag-secondary-foreground-color: var(--text-muted);
  --ag-selected-row-background-color: rgba(59, 130, 246, 0.2);
  --ag-range-selection-border-color: var(--primary);
  --ag-input-focus-border-color: var(--primary);
  --ag-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --ag-font-size: 13px;
  --ag-grid-size: 6px;
  --ag-row-height: 48px;
  --ag-header-height: 44px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}

.ag-theme-alpine-dark .ag-header-cell {
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.ag-theme-alpine-dark .ag-cell {
  display: flex;
  align-items: center;
}

/* Grid Action Buttons */
.grid-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.grid-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.375rem 0.625rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}

.grid-btn svg {
  width: 14px;
  height: 14px;
}

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

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

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

.grid-btn-success:hover {
  background: var(--success-dark);
}

.grid-btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.grid-btn-secondary:hover {
  background: var(--bg-hover);
}

.grid-btn-icon {
  width: 28px;
  height: 28px;
  padding: 0;
}

.grid-btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
}

/* Data Cell with Status */
.data-cell {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.data-status {
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  white-space: nowrap;
}

.data-status-ok {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
}

.data-status-missing {
  background: rgba(100, 116, 139, 0.15);
  color: var(--text-muted);
  font-style: italic;
}

/* Grid Status Badges */
.grid-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
}

.grid-badge-success {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
}

.grid-badge-warning {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
}

.grid-badge-muted {
  background: var(--bg-tertiary);
  color: var(--text-muted);
}

/* ===================== PREVIEW MODAL ===================== */
.preview-info {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.preview-info-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.preview-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.preview-info-item span:last-child {
  font-weight: 500;
  color: var(--text-primary);
}

.preview-valid-count {
  color: var(--success) !important;
}

.preview-invalid-count {
  color: var(--danger) !important;
}

/* Metadata section */
.preview-metadata {
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
  max-height: 150px;
  overflow-y: auto;
}

.metadata-header {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.metadata-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.metadata-row {
  display: flex;
  gap: 0.75rem;
  font-size: 0.8125rem;
  line-height: 1.4;
}

.metadata-row-num {
  color: var(--text-muted);
  min-width: 60px;
  flex-shrink: 0;
}

.metadata-content {
  color: var(--text-secondary);
  word-break: break-word;
}

/* Preview warning */
.preview-warning {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius);
  color: var(--danger);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.preview-warning svg {
  flex-shrink: 0;
}

/* Status badges in grid */
.status-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.125rem 0.5rem;
  border-radius: 4px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-valid {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
}

.status-invalid {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

/* Invalid row styling in grid */
.ag-row-invalid {
  background: rgba(239, 68, 68, 0.08) !important;
}

.ag-row-invalid:hover {
  background: rgba(239, 68, 68, 0.12) !important;
}

.invalid-row {
  color: var(--text-muted) !important;
}