:root {
  /* Clean White Canvas Theme (Default for prajaedukasi.com) */
  --bg-dark: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --border-card: #e2e8f0;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --purple: #8b5cf6;
  --sidebar-width: 260px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
}

/* Dark Mode Override when toggled */
body.dark-mode {
  --bg-dark: #0f172a;
  --bg-card: rgba(30, 41, 59, 0.7);
  --bg-card-hover: rgba(51, 65, 85, 0.8);
  --border-card: rgba(255, 255, 255, 0.1);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Inter', sans-serif;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
}

.app-container {
  display: flex;
  min-height: 100vh;
}

/* White Canvas Card Styling */
.glass {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
}

/* Sidebar Styling */
.sidebar {
  width: var(--sidebar-width);
  background: #f8fafc;
  border-right: 1px solid var(--border-card);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
}

body.dark-mode .sidebar {
  background: #090d16;
}

.brand {
  padding: 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--border-card);
}

.brand-logo {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: white;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.brand-info h2 {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: #0f172a;
}

body.dark-mode .brand-info h2 {
  color: #f8fafc;
}

.brand-info span {
  font-size: 11px;
  color: var(--text-muted);
}

.nav-menu {
  padding: 20px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.nav-section {
  font-size: 10px;
  font-weight: 700;
  color: #94a3b8;
  letter-spacing: 1px;
  padding: 12px 10px 4px 10px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: #475569;
  text-decoration: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}

body.dark-mode .nav-item {
  color: #94a3b8;
}

.nav-item i {
  font-size: 16px;
  width: 20px;
  text-align: center;
}

.nav-item:hover {
  background: #f1f5f9;
  color: var(--primary);
}

body.dark-mode .nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
}

.nav-item.active {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.nav-item .badge {
  margin-left: auto;
  background: rgba(255, 255, 255, 0.2);
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-card);
}

.server-status {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #ffffff;
  border: 1px solid var(--border-card);
  padding: 12px;
  border-radius: 10px;
}

body.dark-mode .server-status {
  background: rgba(15, 23, 42, 0.6);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-muted);
}

.status-dot.online {
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.status-info strong {
  display: block;
  font-size: 12px;
}

.status-info span {
  font-size: 11px;
  color: var(--text-muted);
}

/* Main Content */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 30px;
  background: #f8fafc;
}

body.dark-mode .main-content {
  background: var(--bg-dark);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 26px;
}

.topbar-left h1 {
  font-size: 22px;
  font-weight: 800;
  color: #0f172a;
}

body.dark-mode .topbar-left h1 {
  color: #f8fafc;
}

.topbar-left p {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

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

.branch-selector-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #ffffff;
  border: 1px solid var(--border-card);
  padding: 9px 14px;
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
}

body.dark-mode .branch-selector-wrapper {
  background: var(--bg-card);
}

.branch-selector-wrapper i {
  color: var(--primary);
}

.branch-selector-wrapper select {
  background: transparent;
  border: none;
  color: #0f172a;
  font-size: 13px;
  font-weight: 600;
  outline: none;
  cursor: pointer;
}

body.dark-mode .branch-selector-wrapper select {
  color: var(--text-main);
}

.btn {
  padding: 9px 16px;
  border-radius: 10px;
  border: none;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.btn-refresh {
  background: #ffffff;
  color: #0f172a;
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-sm);
}

body.dark-mode .btn-refresh {
  background: var(--bg-card);
  color: var(--text-main);
}

.btn-refresh:hover {
  background: #f1f5f9;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

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

/* Tabs Toggle */
.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

.metric-card {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.metric-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.metric-icon.blue { background: #eff6ff; color: #2563eb; }
.metric-icon.green { background: #ecfdf5; color: #10b981; }
.metric-icon.orange { background: #fffbeb; color: #d97706; }
.metric-icon.purple { background: #f5f3ff; color: #7c3aed; }

.metric-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
}

.metric-data h3 {
  font-size: 24px;
  font-weight: 800;
  margin: 3px 0;
  color: #0f172a;
}

body.dark-mode .metric-data h3 {
  color: #f8fafc;
}

.metric-sub {
  font-size: 11px;
  color: var(--text-muted);
}

.text-green { color: var(--success); }

/* Charts Grid */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
}

.chart-card {
  padding: 22px;
}

.chart-card.full-width {
  grid-column: 1 / -1;
}

.chart-header {
  margin-bottom: 18px;
}

.chart-header h3 {
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #0f172a;
}

body.dark-mode .chart-header h3 {
  color: #f8fafc;
}

.chart-header span {
  font-size: 12px;
  color: var(--text-muted);
}

.chart-body {
  position: relative;
  height: 280px;
}

/* Lead Table Styling */
.table-controls {
  padding: 14px 18px;
  margin-bottom: 18px;
  display: flex;
  gap: 14px;
}

.search-box {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #ffffff;
  border: 1px solid var(--border-card);
  padding: 9px 14px;
  border-radius: 10px;
}

body.dark-mode .search-box {
  background: rgba(15, 23, 42, 0.6);
}

.search-box input {
  background: transparent;
  border: none;
  color: #0f172a;
  width: 100%;
  outline: none;
  font-size: 13px;
}

body.dark-mode .search-box input {
  color: var(--text-main);
}

.filter-group select {
  background: #ffffff;
  border: 1px solid var(--border-card);
  color: #0f172a;
  padding: 9px 14px;
  border-radius: 10px;
  font-size: 13px;
  outline: none;
  font-weight: 500;
}

body.dark-mode .filter-group select {
  background: rgba(15, 23, 42, 0.6);
  color: var(--text-main);
}

.table-card {
  overflow: hidden;
}

.table-responsive {
  overflow-x: auto;
}

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

.data-table th {
  background: #f8fafc;
  padding: 12px 16px;
  color: #475569;
  font-weight: 700;
  border-bottom: 1px solid var(--border-card);
}

body.dark-mode .data-table th {
  background: rgba(15, 23, 42, 0.8);
  color: var(--text-muted);
}

.data-table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border-card);
  color: #1e293b;
}

body.dark-mode .data-table td {
  color: var(--text-main);
}

.data-table tr:hover {
  background: #f1f5f9;
}

body.dark-mode .data-table tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.status-badge {
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  display: inline-block;
}

.status-badge.inquiry { background: #fffbe6; color: #d97706; border: 1px solid #fef3c7; }
.status-badge.registered { background: #e6fffa; color: #059669; border: 1px solid #a7f3d0; }
.status-badge.contacted { background: #eff6ff; color: #2563eb; border: 1px solid #bfdbfe; }
.status-badge.enrolled { background: #f5f3ff; color: #7c3aed; border: 1px solid #ddd6fe; }

.source-tag {
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  color: #475569;
}

body.dark-mode .source-tag {
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: #cbd5e1;
}

.btn-wa {
  background: #25d366;
  color: white;
  padding: 5px 12px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 12px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-wa:hover {
  background: #128c7e;
}

/* Config Grid */
.config-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.config-card {
  padding: 22px;
}

.config-card.full-width {
  grid-column: 1 / -1;
}

.config-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.config-header i {
  font-size: 22px;
}

.config-header.blue i { color: #2563eb; }
.config-header.green i { color: #10b981; }
.config-header.orange i { color: #d97706; }

.config-header h3 {
  font-size: 15px;
  font-weight: 700;
  color: #0f172a;
}

body.dark-mode .config-header h3 {
  color: #f8fafc;
}

.config-header p {
  font-size: 12px;
  color: var(--text-muted);
}

.config-body textarea {
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: 10px;
  color: #0f172a;
  padding: 14px;
  font-size: 13px;
  line-height: 1.5;
  outline: none;
  resize: vertical;
}

body.dark-mode .config-body textarea {
  background: rgba(15, 23, 42, 0.8);
  color: var(--text-main);
}

.template-variables {
  margin-top: 10px;
  font-size: 12px;
  color: var(--text-muted);
}

.template-variables code {
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
  color: #0284c7;
}

body.dark-mode .template-variables code {
  background: rgba(255, 255, 255, 0.1);
  color: #38bdf8;
}

.config-footer {
  margin-top: 20px;
  text-align: right;
}

/* Embed Code Card */
.embed-card {
  background: #ffffff;
  border: 1px solid var(--border-card);
  padding: 20px;
  border-radius: 12px;
  margin-top: 20px;
}

.embed-code-box {
  background: #1e293b;
  color: #38bdf8;
  padding: 14px;
  border-radius: 8px;
  font-family: monospace;
  font-size: 12px;
  overflow-x: auto;
  margin-top: 10px;
}

/* Sessions Grid */
.sessions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}

.session-card {
  padding: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.session-info strong {
  display: block;
  font-size: 14px;
  color: #0f172a;
}

body.dark-mode .session-info strong {
  color: #f8fafc;
}

.session-info span {
  font-size: 12px;
  color: var(--text-muted);
}