/* App Modern Design System */
:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #06b6d4;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-family);
  background-color: var(--slate-100);
  color: var(--slate-800);
  font-size: 14px;
  line-height: 1.5;
}

/* Header Navbar */
.app-header {
  height: 60px;
  background: var(--slate-900);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.app-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 18px;
  color: #ffffff;
  text-decoration: none;
  letter-spacing: -0.3px;
}

.app-brand .badge-tag {
  background: linear-gradient(135deg, #3b82f6, #6366f1);
  color: white;
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--slate-800);
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid var(--slate-700);
  font-size: 13px;
}

.role-pill {
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
}
.role-pill.admin { background: #dc2626; color: #fff; }
.role-pill.gv { background: #2563eb; color: #fff; }

/* Layout Shell */
.app-shell {
  display: flex;
  height: calc(100vh - 60px);
  overflow: hidden;
}

.app-sidebar {
  width: 280px;
  background: #ffffff;
  border-right: 1px solid var(--slate-200);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transition: width 0.2s ease;
}

.app-main {
  flex: 1;
  background: var(--slate-100);
  overflow-y: auto;
  position: relative;
}

/* Sidebar Menu */
.menu-group {
  padding: 16px 12px 6px;
}

.menu-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--slate-500);
  letter-spacing: 0.8px;
  margin-bottom: 8px;
  padding-left: 8px;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  color: var(--slate-700);
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: all 0.15s ease;
  margin-bottom: 2px;
}

.menu-item:hover {
  background: var(--slate-100);
  color: var(--primary);
}

.menu-item.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

.menu-item svg {
  width: 18px;
  height: 18px;
  stroke-width: 2;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
  white-space: nowrap;
}

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

.btn-secondary { background: #fff; border-color: var(--slate-200); color: var(--slate-700); }
.btn-secondary:hover { background: var(--slate-100); color: var(--slate-900); }

.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-warning { background: var(--warning); color: #fff; }

.btn-sm { padding: 4px 10px; font-size: 12px; border-radius: var(--radius-sm); }
.btn-lg { padding: 12px 20px; font-size: 15px; }

/* Cards & Stats */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.stat-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stat-val {
  font-size: 26px;
  font-weight: 800;
  color: var(--slate-900);
  line-height: 1.2;
}

.stat-lbl {
  font-size: 12px;
  color: var(--slate-500);
  font-weight: 500;
  margin-top: 2px;
}

.stat-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
}

.card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
  overflow: hidden;
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--slate-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #ffffff;
}

.card-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--slate-900);
}

.card-body {
  padding: 20px;
}

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

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

table.data-table th {
  background: var(--slate-50);
  color: var(--slate-600);
  font-weight: 600;
  padding: 10px 14px;
  border-bottom: 1px solid var(--slate-200);
}

table.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--slate-200);
  color: var(--slate-800);
}

table.data-table tr:hover td {
  background: var(--slate-50);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}
.badge-blue { background: #dbeafe; color: #1e40af; }
.badge-green { background: #d1fae5; color: #065f46; }
.badge-amber { background: #fef3c7; color: #92400e; }
.badge-red { background: #fee2e2; color: #991b1b; }
.badge-gray { background: #f3f4f6; color: #374151; }

/* Tabs */
.tab-nav {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--slate-200);
  padding: 0 20px;
  background: #ffffff;
}

.tab-btn {
  padding: 12px 16px;
  border: none;
  background: transparent;
  font-size: 14px;
  font-weight: 500;
  color: var(--slate-600);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.15s ease;
}

.tab-btn:hover { color: var(--primary); }
.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

/* Forms */
.form-group {
  margin-bottom: 16px;
}
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--slate-700);
  margin-bottom: 6px;
}
.form-control {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-family: inherit;
  transition: border-color 0.15s ease;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.iframe-container {
  width: 100%;
  height: 100%;
  border: none;
  background: #ffffff;
}