/* =====================================================
   কুষ্টিয়া পৌরসভা — Admin Design System
   Modern Government Digital Service Platform
   ===================================================== */

/* --- Design Tokens --- */
:root {
  /* Brand */
  --primary: #1a56db;
  --primary-hover: #1648b8;
  --primary-light: #e8effc;
  --primary-50: #f0f5ff;

  /* Semantic */
  --success: #0d9f6e;
  --success-light: #def7ec;
  --warning: #c27803;
  --warning-light: #fdf6b2;
  --danger: #c81e1e;
  --danger-light: #fde8e8;
  --info: #1e40af;
  --info-light: #e1effe;

  /* Neutral */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* Surface */
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-sidebar: #0f172a;
  --bg-sidebar-hover: rgba(255,255,255,0.06);
  --bg-sidebar-active: rgba(59,130,246,0.15);

  /* Text */
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --text-inverse: #ffffff;

  /* Border */
  --border: #e5e7eb;
  --border-light: #f3f4f6;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Shadow */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --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);

  /* Layout */
  --sidebar-w: 260px;
  --sidebar-collapsed-w: 72px;
  --topbar-h: 64px;

  /* Font */
  --font: 'Hind Siliguri', 'HindSiliguriLocal', 'Noto Sans Bengali', system-ui, -apple-system, sans-serif;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  font-family: var(--font);
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

img { max-width: 100%; height: auto; }

/* --- Sidebar --- */
.admin-sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--bg-sidebar);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.sidebar-brand {
  padding: 20px 20px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.sidebar-brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: cover;
}

.sidebar-brand-text {
  display: flex;
  flex-direction: column;
}

.sidebar-brand-name {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.3;
}

.sidebar-brand-sub {
  color: var(--gray-400);
  font-size: 11px;
  font-weight: 400;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 10px;
  overflow-y: auto;
}

.sidebar-section {
  color: var(--gray-500);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 12px 12px 6px;
  margin-top: 4px;
}

.sidebar-nav .nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  color: var(--gray-400);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 500;
  transition: all 0.15s;
  margin-bottom: 1px;
  cursor: pointer;
}

.sidebar-nav .nav-item:hover {
  background: var(--bg-sidebar-hover);
  color: var(--gray-200);
}

.sidebar-nav .nav-item.active {
  background: var(--bg-sidebar-active);
  color: #60a5fa;
  font-weight: 600;
}

.sidebar-nav .nav-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.7;
}

.sidebar-nav .nav-item.active svg {
  opacity: 1;
}

/* --- Main Content Area --- */
.admin-main {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.admin-topbar {
  height: var(--topbar-h);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.topbar-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
}

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

.topbar-user {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-secondary);
}

.topbar-user:hover {
  background: var(--gray-100);
}

.admin-content {
  flex: 1;
  padding: 24px 28px 40px;
}

/* --- Cards --- */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
}

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

.card-header h5, .card-header h6 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.card-body { padding: 20px; }

/* --- Stat Cards --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 20px;
  border: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: box-shadow 0.2s;
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
}

.stat-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon svg { width: 20px; height: 20px; }
.stat-icon.blue { background: var(--info-light); color: var(--info); }
.stat-icon.green { background: var(--success-light); color: var(--success); }
.stat-icon.amber { background: var(--warning-light); color: var(--warning); }
.stat-icon.red { background: var(--danger-light); color: var(--danger); }
.stat-icon.purple { background: #ede9fe; color: #7c3aed; }
.stat-icon.teal { background: #e6f6fa; color: #0e7490; }

.stat-info { flex: 1; }

.stat-value {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.1;
}

.stat-label {
  font-size: 12.5px;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 2px;
}

.stat-trend {
  font-size: 11px;
  font-weight: 600;
  margin-top: 4px;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 6px;
  border-radius: var(--radius-full);
}

.stat-trend.up { color: var(--success); background: var(--success-light); }
.stat-trend.down { color: var(--danger); background: var(--danger-light); }

/* --- Tables --- */
.table {
  width: 100%;
  font-size: 13.5px;
  border-collapse: collapse;
}

.table thead th {
  background: var(--gray-50);
  font-weight: 600;
  font-size: 11.5px;
  color: var(--text-muted);
  padding: 10px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-primary);
  vertical-align: middle;
}

.table tbody tr { transition: background 0.1s; }
.table tbody tr:hover { background: var(--gray-50); }
.table tbody tr:last-child td { border-bottom: none; }

.table-id {
  font-weight: 700;
  color: var(--primary);
  font-size: 13px;
}

/* --- Status Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
  gap: 4px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.badge-submitted { background: #ede9fe; color: #6d28d9; }
.badge-submitted .badge-dot { background: #7c3aed; }
.badge-received { background: var(--info-light); color: #1e40af; }
.badge-received .badge-dot { background: #3b82f6; }
.badge-under_review { background: var(--warning-light); color: #92400e; }
.badge-under_review .badge-dot { background: #f59e0b; }
.badge-in_progress { background: var(--success-light); color: #065f46; }
.badge-in_progress .badge-dot { background: #10b981; }
.badge-resolved { background: #d1fae5; color: #065f46; }
.badge-resolved .badge-dot { background: #059669; }
.badge-rejected { background: var(--danger-light); color: #991b1b; }
.badge-rejected .badge-dot { background: #dc2626; }

/* ── Citizen Services status badges ─────────────────────────────── */
.badge-service-submitted { background: #ede9fe; color: #6d28d9; }
.badge-service-under_review { background: #fef3c7; color: #92400e; }
.badge-service-additional_info_required { background: #ffedd5; color: #9a3412; }
.badge-service-approved { background: #dbeafe; color: #1e40af; }
.badge-service-ready_for_collection { background: #e0f2fe; color: #075985; }
.badge-service-completed { background: #d1fae5; color: #065f46; }
.badge-service-rejected { background: #fee2e2; color: #991b1b; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

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

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

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

.btn-outline:hover { background: var(--gray-50); border-color: var(--gray-300); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: none;
  padding: 6px 10px;
}

.btn-ghost:hover { background: var(--gray-100); color: var(--text-primary); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; }

.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-lg { padding: 10px 24px; font-size: 14px; }

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-sm);
}

/* --- Forms --- */
.form-group { margin-bottom: 16px; }

.form-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 5px;
}

.form-control {
  width: 100%;
  padding: 9px 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 13.5px;
  color: var(--text-primary);
  background: var(--bg-card);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,86,219,0.1);
}

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

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

/* --- Filter Bar --- */
.filter-bar {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 16px 20px;
  margin-bottom: 20px;
}

.filter-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.filter-row .form-group { margin-bottom: 0; flex: 1; min-width: 140px; }
.filter-row .form-group:last-child { flex: 0; }

/* --- Pagination --- */
.pagination-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  font-size: 13px;
  color: var(--text-muted);
}

.pagination {
  display: flex;
  gap: 4px;
}

.pagination .page-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  background: var(--bg-card);
  cursor: pointer;
  transition: all 0.15s;
}

.pagination .page-btn:hover { background: var(--gray-50); }
.pagination .page-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* --- Empty States --- */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--gray-100);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.empty-state-icon svg { width: 24px; height: 24px; color: var(--gray-400); }

.empty-state h5 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.empty-state p {
  font-size: 13px;
  color: var(--text-muted);
}

/* --- Modal --- */
.modal-content {
  border-radius: var(--radius-lg);
  border: none;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border-light);
}

.modal-title { font-size: 15px; font-weight: 700; }

.modal-body { padding: 20px; }

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border-light);
}

/* --- Toast --- */
.toast-container {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 9999;
}

.toast {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: none;
  font-size: 13px;
}

/* --- Timeline --- */
.timeline {
  position: relative;
  padding-left: 24px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: 20px;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -21px;
  top: 3px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid var(--bg-card);
  box-shadow: 0 0 0 2px var(--primary);
}

.timeline-item.resolved .timeline-dot { background: var(--success); box-shadow: 0 0 0 2px var(--success); }
.timeline-item.rejected .timeline-dot { background: var(--danger); box-shadow: 0 0 0 2px var(--danger); }

.timeline-time {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.timeline-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.timeline-note {
  font-size: 12.5px;
  color: var(--text-secondary);
  background: var(--gray-50);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--primary);
  margin-top: 6px;
}

.timeline-note.internal {
  border-left-color: var(--warning);
  background: #fffbeb;
  color: #92400e;
}

.timeline-author {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* --- Detail Page --- */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.detail-section {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 20px;
  margin-bottom: 16px;
}

.detail-section-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.detail-row {
  display: flex;
  padding: 7px 0;
  border-bottom: 1px solid var(--border-light);
}

.detail-row:last-child { border-bottom: none; }

.detail-label {
  width: 120px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-muted);
  flex-shrink: 0;
}

.detail-value {
  font-size: 13.5px;
  color: var(--text-primary);
}

/* --- Image Gallery --- */
.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
}

.image-gallery img {
  width: 100%;
  height: 130px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: transform 0.15s;
}

.image-gallery img:hover { transform: scale(1.02); }

/* --- Page Header --- */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.page-header h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.page-header-actions {
  display: flex;
  gap: 8px;
}

/* --- Mobile Sidebar Overlay --- */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 999;
  display: none;
  backdrop-filter: blur(2px);
}

.sidebar-overlay.show { display: block; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .admin-sidebar { transform: translateX(-100%); }
  .admin-sidebar.show { transform: translateX(0); }
  .admin-main { margin-left: 0; }
  .admin-content { padding: 16px; }
  .admin-topbar { padding: 0 16px; }
  .stats-grid { grid-template-columns: 1fr; }
  .filter-row { flex-direction: column; }
  .filter-row .form-group { min-width: 100%; }
  .topbar-right .topbar-user span { display: none; }
}

/* --- Dashboard --- */
.status-summary {
  grid-template-columns: repeat(5, 1fr);
  margin-bottom: 0;
}

.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

@media (max-width: 1024px) {
  .status-summary { grid-template-columns: repeat(3, 1fr); }
  .charts-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .status-summary { grid-template-columns: repeat(2, 1fr); }
}

/* --- Settings --- */
.settings-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 20px;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

@media (max-width: 768px) {
  .settings-grid { grid-template-columns: 1fr; }
  .form-grid-2 { grid-template-columns: 1fr; }
}

/* --- Print --- */
@media print {
  .admin-sidebar, .admin-topbar, .sidebar-overlay, .no-print { display: none !important; }
  .admin-main { margin-left: 0 !important; }
  .admin-content { padding: 0 !important; }
}