/* ===== Invoicing App – Complete UI Theme ===== */
:root {
  /* Primary – Indigo */
  --app-primary: #4f46e5;
  --app-primary-dark: #4338ca;
  --app-primary-light: #818cf8;
  --app-primary-bg: rgba(79, 70, 229, 0.08);
  /* Surfaces */
  --app-surface: #1e1b4b;
  --app-surface-light: #312e81;
  --app-bg: #f8fafc;
  --app-card: #ffffff;
  --app-text: #0f172a;
  --app-text-muted: #64748b;
  --app-border: #e2e8f0;
  --app-border-light: #f1f5f9;
  /* Semantic */
  --app-success: #059669;
  --app-danger: #dc2626;
  --app-warning: #d97706;
  /* Effects */
  --app-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
  --app-shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --app-shadow-lg: 0 12px 40px -8px rgba(15, 23, 42, 0.12);
  --app-radius: 14px;
  --app-radius-sm: 10px;
  --app-radius-xs: 6px;
  --sidebar-width: 272px;
  --header-height: 64px;
}

* { box-sizing: border-box; }

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--app-bg);
  color: var(--app-text);
  margin: 0;
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ----- Auth pages ----- */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, #1e1b4b 0%, #312e81 40%, #4f46e5 100%);
  padding: 24px;
  position: relative;
  overflow: hidden;
}
.auth-page::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(129, 140, 248, 0.25), transparent);
  pointer-events: none;
}
.auth-card {
  background: var(--app-card);
  border-radius: var(--app-radius);
  box-shadow: var(--app-shadow-lg);
  padding: 48px 44px;
  width: 100%;
  max-width: 420px;
  position: relative;
  z-index: 1;
  border: 1px solid var(--app-border-light);
}
.auth-card .auth-logo {
  display: block;
  margin: 0 auto 24px;
  max-width: 180px;
  height: auto;
}
.auth-card .auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--app-text);
  text-align: center;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}
.auth-card .auth-subtitle {
  font-size: 0.9375rem;
  color: var(--app-text-muted);
  text-align: center;
  margin-bottom: 28px;
}
.auth-card .form-label {
  font-weight: 600;
  color: var(--app-text);
  margin-bottom: 8px;
  font-size: 0.9rem;
}
.auth-card .form-control,
.auth-card .form-select {
  border-radius: var(--app-radius-sm);
  border: 1px solid var(--app-border);
  padding: 12px 14px;
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.auth-card .form-control:focus,
.auth-card .form-select:focus {
  border-color: var(--app-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
  outline: none;
}
.auth-card .btn-auth {
  width: 100%;
  padding: 14px;
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--app-radius-sm);
  background: var(--app-primary);
  border: none;
  color: #fff;
  margin-top: 10px;
  transition: background 0.2s, transform 0.1s;
}
.auth-card .btn-auth:hover {
  background: var(--app-primary-dark);
  color: #fff;
}
.auth-card .btn-auth:active { transform: scale(0.99); }
.auth-card .auth-footer {
  text-align: center;
  margin-top: 28px;
  font-size: 0.8125rem;
  color: var(--app-text-muted);
}
.auth-card .btn-back {
  position: absolute;
  top: 24px;
  left: 24px;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 2;
  transition: color 0.2s;
}
.auth-card .btn-back:hover { color: #fff; }
/* Back button on auth page (e.g. Login) – when placed in .auth-page, not inside .auth-card */
.auth-page .btn-back {
  position: absolute;
  top: 24px;
  left: 24px;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 2;
  transition: color 0.2s;
}
.auth-page .btn-back:hover { color: #fff; }
.auth-page-wrap { position: relative; }

/* ----- App Layout ----- */
.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--app-card);
  border-bottom: 1px solid var(--app-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 1000;
  box-shadow: var(--app-shadow);
}
.app-header .header-logo {
  height: 38px;
  width: auto;
  max-width: 160px;
}
.app-header .header-nav {
  display: flex;
  align-items: center;
  gap: 16px;
}
.app-header .company-select {
  padding: 8px 12px;
  border-radius: var(--app-radius-sm);
  border: 1px solid var(--app-border);
  font-size: 0.9rem;
  min-width: 168px;
  background: var(--app-card);
  color: var(--app-text);
}
.app-header .company-select:focus {
  border-color: var(--app-primary);
  box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.1);
}
.app-header .user-menu-wrap { position: relative; }
.app-header .user-menu-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--app-radius-sm);
  border: 1px solid var(--app-border);
  background: var(--app-card);
  color: var(--app-text);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.app-header .user-menu-btn:hover {
  background: var(--app-bg);
  border-color: var(--app-border);
}
.app-header .user-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 6px;
  min-width: 180px;
  background: var(--app-card);
  border-radius: var(--app-radius-sm);
  box-shadow: var(--app-shadow-lg);
  border: 1px solid var(--app-border);
  padding: 6px;
  display: none;
}
.app-header .user-dropdown.show { display: block; }
.app-header .user-dropdown a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  color: var(--app-text);
  text-decoration: none;
  font-size: 0.9rem;
  border-radius: var(--app-radius-xs);
  transition: background 0.15s;
}
.app-header .user-dropdown a:hover { background: var(--app-bg); }
.app-header .toggle-sidebar {
  display: none;
  background: none;
  border: none;
  font-size: 1.35rem;
  color: var(--app-text);
  padding: 8px;
  cursor: pointer;
}
@media (max-width: 991px) {
  .app-header .toggle-sidebar { display: block; }
}

/* ----- Sidebar ----- */
.app-sidebar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--app-surface);
  z-index: 999;
  overflow-y: auto;
  transition: transform 0.25s ease;
}
.app-sidebar .sidebar-nav {
  list-style: none;
  margin: 0;
  padding: 20px 12px;
}
.app-sidebar .nav-item { margin-bottom: 2px; }
.app-sidebar .nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--app-radius-sm);
  border-left: 3px solid transparent;
  transition: color 0.15s, background 0.15s;
}
.app-sidebar .nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}
.app-sidebar .nav-link.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border-left-color: var(--app-primary-light);
}
.app-sidebar .nav-link i {
  font-size: 1.15rem;
  opacity: 0.9;
  flex-shrink: 0;
}
.app-sidebar .nav-content {
  list-style: none;
  margin: 0;
  padding: 4px 0 4px 0;
  background: rgba(0, 0, 0, 0.15);
  border-radius: var(--app-radius-sm);
  margin-top: 2px;
  border-left: 3px solid transparent;
}
.app-sidebar .nav-content .nav-link {
  padding: 10px 16px 10px 44px;
  font-size: 0.9rem;
}
.app-sidebar .nav-content.collapse:not(.show) { display: none; }
.app-sidebar .nav-content.collapse.show { display: block; }
.app-sidebar [data-bs-toggle="collapse"] .bi-chevron-down {
  margin-left: auto;
  transition: transform 0.2s;
}
.app-sidebar [data-bs-toggle="collapse"]:not(.collapsed) .bi-chevron-down {
  transform: rotate(180deg);
}
@media (max-width: 991px) {
  .app-sidebar {
    transform: translateX(-100%);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
  }
  .app-sidebar.mobile-open { transform: translateX(0); }
}

/* ----- Main content ----- */
.app-main {
  margin-left: var(--sidebar-width);
  margin-top: var(--header-height);
  min-height: calc(100vh - var(--header-height));
  padding: 28px;
  transition: margin 0.2s;
}
@media (max-width: 991px) {
  .app-main { margin-left: 0; padding: 20px; }
}

/* ----- Page header & breadcrumb ----- */
.page-header { margin-bottom: 28px; }
.page-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--app-text);
  margin: 0 0 6px 0;
  letter-spacing: -0.02em;
}
.breadcrumb {
  background: none;
  padding: 0;
  margin: 0;
  font-size: 0.875rem;
  color: var(--app-text-muted);
}
.breadcrumb a { color: var(--app-primary); text-decoration: none; font-weight: 500; }
.breadcrumb a:hover { text-decoration: underline; }

/* ----- Cards ----- */
.app-card {
  background: var(--app-card);
  border-radius: var(--app-radius);
  box-shadow: var(--app-shadow);
  border: 1px solid var(--app-border);
  overflow: hidden;
  margin-bottom: 24px;
}
.app-card .card-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--app-border);
  font-weight: 600;
  font-size: 1rem;
  color: var(--app-text);
  background: var(--app-bg);
}
.app-card .card-body { padding: 24px; }

/* ----- Form pages (Add / Edit) ----- */
.form-card .card-body { padding: 28px 24px; }
.form-section {
  margin-bottom: 28px;
}
.form-section:last-of-type { margin-bottom: 0; }
.form-section-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--app-text);
  margin: 0 0 16px 0;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--app-border);
}
.form-group {
  margin-bottom: 18px;
}
.form-group label,
.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--app-text);
  margin-bottom: 6px;
}
.form-group .form-control,
.form-group .form-select {
  width: 100%;
  max-width: 100%;
  border-radius: var(--app-radius-sm);
  border: 1px solid var(--app-border);
  padding: 10px 14px;
  font-size: 0.9375rem;
}
.form-group .form-control:focus,
.form-group .form-select:focus {
  border-color: var(--app-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
  outline: none;
}
.form-group .form-control[readonly] {
  background: var(--app-bg);
  color: var(--app-text-muted);
}
.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--app-border);
}
.form-actions .btn { min-width: 100px; }
.form-check-inline {
  margin-right: 16px;
}
.form-check-inline .form-check-input {
  margin-right: 6px;
}
.form-check-inline .form-check-label {
  font-weight: 500;
  color: var(--app-text);
}
.app-main .form-card .card-body .row.mb-3 { margin-bottom: 18px; }
.app-main .form-card .card-body .col-form-label {
  font-weight: 600;
  color: var(--app-text);
  margin-bottom: 6px;
}

/* ----- Dashboard stats ----- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}
.stat-card {
  background: var(--app-card);
  border-radius: var(--app-radius);
  padding: 22px;
  border: 1px solid var(--app-border);
  box-shadow: var(--app-shadow);
  transition: box-shadow 0.2s, border-color 0.2s;
}
.stat-card:hover {
  box-shadow: var(--app-shadow-md);
  border-color: var(--app-border);
}
.stat-card .stat-label {
  font-size: 0.875rem;
  color: var(--app-text-muted);
  margin-bottom: 6px;
  font-weight: 500;
}
.stat-card .stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--app-text);
  letter-spacing: -0.02em;
}
.stat-card.primary .stat-value { color: var(--app-primary); }

/* ----- Charts ----- */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.chart-card {
  background: var(--app-card);
  border-radius: var(--app-radius);
  padding: 22px;
  border: 1px solid var(--app-border);
  box-shadow: var(--app-shadow);
}
.chart-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 14px 0;
  color: var(--app-text);
}
.chart-card .chart-wrap { position: relative; height: 160px; }
.chart-card .chart-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--app-primary);
  margin-top: 10px;
}

/* ----- Tables ----- */
.app-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.app-table th,
.app-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--app-border);
}
.app-table th {
  font-weight: 600;
  color: var(--app-text-muted);
  background: var(--app-bg);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.app-table tbody tr {
  transition: background 0.15s;
}
.app-table tbody tr:hover td { background: var(--app-primary-bg); }
.app-table .btn-icon {
  padding: 8px 12px;
  border-radius: var(--app-radius-xs);
  border: none;
  cursor: pointer;
  margin-right: 6px;
  font-size: 0.9rem;
  transition: opacity 0.15s;
}
.app-table .btn-icon.edit { background: var(--app-primary-bg); color: var(--app-primary); }
.app-table .btn-icon.delete { background: rgba(220, 38, 38, 0.1); color: var(--app-danger); }
.app-table .btn-icon:hover { opacity: 0.85; }

/* ----- List pages (Invoice list, Customer, Practice, Bank, etc.) ----- */
.list-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 20px;
}
.list-toolbar .search-wrap {
  flex: 1;
  min-width: 200px;
  max-width: 400px;
}
.list-toolbar .search-wrap .form-label {
  font-size: 0.8125rem;
  color: var(--app-text-muted);
  margin-bottom: 6px;
}
.list-toolbar .search-wrap .form-control {
  border-radius: var(--app-radius-sm);
  padding: 10px 14px;
}
.list-toolbar .actions-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}
.list-toolbar .actions-wrap .form-select {
  padding: 8px 12px;
  border-radius: var(--app-radius-sm);
  border: 1px solid var(--app-border);
  font-size: 0.9rem;
  min-width: 140px;
}
.list-card-title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--app-text);
  margin: 0 0 16px 0;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--app-border);
}
/* Table inside list card – use app-table or table for legacy */
.app-card .table-responsive {
  border-radius: var(--app-radius-xs);
  overflow: hidden;
  border: 1px solid var(--app-border);
}
.app-card .table,
.app-main .app-card .table {
  margin: 0;
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.app-card .table th,
.app-card .table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--app-border);
  vertical-align: middle;
}
.app-card .table thead th {
  font-weight: 600;
  color: var(--app-text-muted);
  background: var(--app-bg);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.app-card .table tbody tr {
  transition: background 0.15s;
}
.app-card .table tbody tr:hover td {
  background: var(--app-primary-bg);
}
.app-card .table tbody tr:last-child td { border-bottom: none; }
.app-card .table .row-clickable {
  cursor: pointer;
}
/* Status badges for Invoice list and similar */
.status-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: capitalize;
}
.status-badge--success { background: rgba(5, 150, 105, 0.12); color: var(--app-success); }
.status-badge--warning { background: rgba(217, 119, 6, 0.12); color: var(--app-warning); }
.status-badge--danger { background: rgba(220, 38, 38, 0.1); color: var(--app-danger); }
.status-badge--muted { background: var(--app-bg); color: var(--app-text-muted); }
.status-badge--primary { background: var(--app-primary-bg); color: var(--app-primary); }
/* Action cell – group of icon buttons */
.list-actions-cell {
  white-space: nowrap;
}
.list-actions-cell .btn {
  padding: 8px 10px;
  border-radius: var(--app-radius-xs);
  margin-right: 4px;
  font-size: 0.9rem;
  border: none;
  transition: opacity 0.15s;
}
.list-actions-cell .btn:hover { opacity: 0.9; }
.list-actions-cell .btn.btn-edit { background: var(--app-primary-bg); color: var(--app-primary); }
.list-actions-cell .btn.btn-delete { background: rgba(220, 38, 38, 0.1); color: var(--app-danger); }
.list-actions-cell .btn.btn-secondary { background: var(--app-bg); color: var(--app-text-muted); }
/* Pagination bar */
.pagination-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--app-border);
}
.pagination-bar .pagination { margin: 0; }
.pagination-bar .pagination .page-link {
  padding: 8px 12px;
  font-size: 0.875rem;
}
/* List alert (e.g. bulk update message) */
.list-alert {
  padding: 12px 16px;
  border-radius: var(--app-radius-sm);
  margin-bottom: 16px;
  font-size: 0.9rem;
}
.list-alert.list-alert--danger {
  background: rgba(220, 38, 38, 0.08);
  border: 1px solid rgba(220, 38, 38, 0.2);
  color: var(--app-danger);
}
/* Empty state */
.list-empty {
  text-align: center;
  padding: 48px 24px;
  color: var(--app-text-muted);
  font-size: 0.95rem;
}
/* Legacy .table-striped / .table-bordered inside .app-main – match theme */
.app-main .table.table-striped tbody tr:nth-of-type(even) td { background: var(--app-bg); }
.app-main .table.table-striped tbody tr:hover td { background: var(--app-primary-bg); }
.app-main .table.table-bordered th,
.app-main .table.table-bordered td { border: 1px solid var(--app-border); }
.app-main .table.table-bordered thead th { background: var(--app-bg); }

/* ----- Buttons ----- */
.btn-app-primary {
  background: var(--app-primary);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: var(--app-radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.2s, transform 0.1s;
}
.btn-app-primary:hover {
  background: var(--app-primary-dark);
  color: #fff;
}
.btn-app-primary:active { transform: scale(0.98); }
.btn-app-outline {
  background: transparent;
  color: var(--app-primary);
  border: 1px solid var(--app-primary);
  padding: 10px 20px;
  border-radius: var(--app-radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.2s, color 0.2s;
}
.btn-app-outline:hover {
  background: var(--app-primary-bg);
  color: var(--app-primary-dark);
}

/* ----- Footer ----- */
.app-footer {
  margin-left: var(--sidebar-width);
  padding: 18px 24px;
  border-top: 1px solid var(--app-border);
  background: var(--app-card);
  font-size: 0.875rem;
  color: var(--app-text-muted);
  text-align: center;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.app-footer a { color: var(--app-primary); text-decoration: none; font-weight: 500; }
.app-footer a:hover { text-decoration: underline; }
@media (max-width: 991px) {
  .app-footer { margin-left: 0; }
}

/* ----- Modal ----- */
.modal-content {
  border-radius: var(--app-radius);
  border: 1px solid var(--app-border);
  box-shadow: var(--app-shadow-lg);
}
.modal-header {
  border-bottom: 1px solid var(--app-border);
  padding: 18px 24px;
}
.modal-footer {
  border-top: 1px solid var(--app-border);
  padding: 18px 24px;
}
.modal-title { font-weight: 600; color: var(--app-text); }

/* ----- Forms ----- */
.form-group label { font-weight: 500; color: var(--app-text); }
.form-control:focus,
.form-select:focus {
  border-color: var(--app-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
  outline: none;
}
.input-group .btn { border-radius: 0 var(--app-radius-sm) var(--app-radius-sm) 0; }

/* ----- Pagination ----- */
.pagination .page-link {
  color: var(--app-primary);
  border-color: var(--app-border);
  font-weight: 500;
}
.pagination .page-link:hover {
  background: var(--app-primary-bg);
  border-color: var(--app-border);
  color: var(--app-primary-dark);
}
.pagination .page-item.active .page-link {
  background: var(--app-primary);
  border-color: var(--app-primary);
  color: #fff;
}

/* ----- Global overrides (Bootstrap inside .app-main) ----- */
.app-main .card {
  border-radius: var(--app-radius);
  border: 1px solid var(--app-border);
  box-shadow: var(--app-shadow);
}
.app-main .card-header {
  background: var(--app-bg);
  border-bottom: 1px solid var(--app-border);
  font-weight: 600;
  padding: 16px 24px;
  color: var(--app-text);
}
.app-main .table { color: var(--app-text); }
.app-main .btn-primary {
  background: var(--app-primary);
  border-color: var(--app-primary);
}
.app-main .btn-primary:hover {
  background: var(--app-primary-dark);
  border-color: var(--app-primary-dark);
}
.app-main .breadcrumb-item.active { color: var(--app-text-muted); }
.app-main .form-control:focus,
.app-main .form-select:focus {
  border-color: var(--app-primary);
  box-shadow: 0 0 0 0.2rem rgba(79, 70, 229, 0.15);
  outline: none;
}
.app-main .text-danger { color: var(--app-danger) !important; }

/* ----- Edit Invoice page ----- */
.invoice-edit-card .card-body { padding: 28px 24px; }
.invoice-edit-card .form-section { margin-bottom: 28px; }
.invoice-edit-card .form-section-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--app-text);
  margin: 0 0 16px 0;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--app-border);
}
.invoice-edit-card .invoice-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px 24px;
  margin-bottom: 20px;
}
.invoice-edit-card .invoice-info-grid .form-group { margin-bottom: 0; }
.invoice-edit-card .nav-tabs {
  border-bottom: 2px solid var(--app-border);
  gap: 4px;
  margin-bottom: 20px;
}
.invoice-edit-card .nav-tabs .nav-link {
  border: 1px solid var(--app-border);
  border-bottom: none;
  border-radius: var(--app-radius-sm) var(--app-radius-sm) 0 0;
  padding: 12px 20px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--app-text-muted);
  background: var(--app-bg);
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.invoice-edit-card .nav-tabs .nav-link:hover {
  color: var(--app-primary);
  background: var(--app-primary-bg);
  border-color: var(--app-border);
}
.invoice-edit-card .nav-tabs .nav-link.active {
  color: var(--app-primary);
  background: var(--app-card);
  border-color: var(--app-border);
  border-bottom: 1px solid var(--app-card);
  margin-bottom: -2px;
  padding-bottom: 13px;
}
.invoice-edit-card .tab-content { padding-top: 8px; }
.invoice-edit-card .invoice-item,
.invoice-edit-card .service-row {
  background: var(--app-bg);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius-sm);
  padding: 16px;
  margin-bottom: 12px;
}
.invoice-edit-card .invoice-item .form-control,
.invoice-edit-card .service-row .form-control {
  border-radius: var(--app-radius-xs);
  border: 1px solid var(--app-border);
}
.invoice-edit-card .invoice-summary {
  background: var(--app-bg);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius-sm);
  padding: 20px 24px;
  margin: 24px 0;
}
.invoice-edit-card .invoice-summary .row { margin-bottom: 14px; }
.invoice-edit-card .invoice-summary .row:last-child { margin-bottom: 0; }
.invoice-edit-card .invoice-summary label,
.invoice-edit-card .invoice-summary .form-label {
  font-weight: 600;
  color: var(--app-text);
}
.invoice-edit-card .attachment-link {
  color: var(--app-primary);
  font-weight: 500;
  text-decoration: none;
}
.invoice-edit-card .attachment-link:hover { text-decoration: underline; }
.invoice-edit-card .form-actions-invoice {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--app-border);
}
.invoice-edit-card .form-actions-invoice .btn { min-width: 120px; }
.invoice-edit-card .btn-success { background: var(--app-success); border-color: var(--app-success); }
.invoice-edit-card .btn-success:hover { background: #047857; border-color: #047857; color: #fff; }
#loader {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 9999;
  background: rgba(0, 0, 0, 0.5);
  padding: 20px;
  border-radius: var(--app-radius-sm);
}
#loader .spinner {
  border: 4px solid rgba(0, 0, 0, 0.1);
  border-left: 4px solid var(--app-primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.invoice-edit-card .custom-modal { max-width: 60%; }
.invoice-edit-card .form-control:focus,
.invoice-edit-card .form-select:focus {
  border-color: var(--app-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
  outline: none;
}

/* Practice autocomplete (Add Invoice) */
.invoice-edit-card #suggestions-container,
.invoice-create-card #suggestions-container {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  max-height: 200px;
  overflow-y: auto;
  background: var(--app-card);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius-xs);
  z-index: 1000;
  margin-top: 4px;
  padding: 0;
  list-style: none;
  box-shadow: var(--app-shadow-md);
}
.invoice-edit-card #suggestions-container .suggestion-item,
.invoice-create-card #suggestions-container .suggestion-item {
  padding: 10px 14px;
  cursor: pointer;
  border-bottom: 1px solid var(--app-border);
  font-size: 0.9rem;
}
.invoice-edit-card #suggestions-container .suggestion-item:last-child,
.invoice-create-card #suggestions-container .suggestion-item:last-child {
  border-bottom: none;
}
.invoice-edit-card #suggestions-container .suggestion-item:hover,
.invoice-create-card #suggestions-container .suggestion-item:hover {
  background: var(--app-primary-bg);
}
.invoice-edit-card #suggestions-container.hidden,
.invoice-create-card #suggestions-container.hidden {
  display: none;
}
.invoice-create-card .col-md-4 { position: relative; }
.invoice-create-card .invalid-input { border: 1px solid var(--app-danger) !important; }
.invoice-create-card .custom-checkbox { display: flex; align-items: center; }
.invoice-create-card .custom-checkbox input { margin-right: 10px; }

/* ----- Add Practice page (shared form-card) ----- */
.practice-form-card .form-section { margin-bottom: 28px; }
.practice-form-card .form-section-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--app-text);
  margin: 0 0 16px 0;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--app-border);
}
.practice-form-card .nav-tabs {
  border-bottom: 2px solid var(--app-border);
  gap: 4px;
  margin-bottom: 20px;
}
.practice-form-card .nav-tabs .nav-link {
  border: 1px solid var(--app-border);
  border-bottom: none;
  border-radius: var(--app-radius-sm) var(--app-radius-sm) 0 0;
  padding: 12px 20px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--app-text-muted);
  background: var(--app-bg);
  transition: color 0.2s, background 0.2s;
}
.practice-form-card .nav-tabs .nav-link:hover {
  color: var(--app-primary);
  background: var(--app-primary-bg);
}
.practice-form-card .nav-tabs .nav-link.active {
  color: var(--app-primary);
  background: var(--app-card);
  border-color: var(--app-border);
  border-bottom: 1px solid var(--app-card);
  margin-bottom: -2px;
  padding-bottom: 13px;
}
.practice-form-card #providers-container { margin-top: 15px; }
.practice-form-card .provider-form { margin-bottom: 15px; }
.practice-form-card .removeProviderButton { margin-top: 10px; }