:root {
  --ui-bg: #f4f1ea;
  --ui-ink: #1e2a32;
  --ui-muted: #6b7280;
  --ui-accent: #1f7a8c;
  --ui-accent-2: #e76f51;
  --ui-card: #ffffff;
  --ui-surface:  #1f7a8c;
  --ui-border: #e5e1d8;
  --ui-success: #2a9d8f;
  --ui-warning: #f4a261;
  --ui-danger: #e63946;
  --ui-radius: 16px;
  --ui-shadow: 0 18px 40px rgba(31, 42, 50, 0.12);
  --ui-shadow-soft: 0 8px 22px rgba(31, 42, 50, 0.08);
}

body.ui-theme,
body.ui-auth {
  font-family: "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ui-ink);
  background: radial-gradient(1200px 600px at 10% -10%, #e3f2f4 0%, transparent 60%),
              radial-gradient(800px 500px at 90% 0%, #fde8d7 0%, transparent 55%),
              var(--ui-bg);
}

h1, h2, h3, h4, h5, h6,
.card-header {
  font-family: "Fraunces", "DM Sans", serif;
  letter-spacing: 0.2px;
}

#layoutSidenav_content {
  background: transparent;
}

.page-animate {
  animation: rise 0.6s ease both;
}

.stagger > * {
  opacity: 0;
  transform: translateY(8px);
  animation: fadeUp 0.6s ease forwards;
}

.stagger > *:nth-child(1) { animation-delay: 0.05s; }
.stagger > *:nth-child(2) { animation-delay: 0.1s; }
.stagger > *:nth-child(3) { animation-delay: 0.15s; }
.stagger > *:nth-child(4) { animation-delay: 0.2s; }
.stagger > *:nth-child(5) { animation-delay: 0.25s; }
.stagger > *:nth-child(6) { animation-delay: 0.3s; }

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.card {
  border-radius: var(--ui-radius);
  border: 1px solid var(--ui-border);
  background: var(--ui-card);
  box-shadow: var(--ui-shadow-soft);
}

.card-header {
  background: linear-gradient(90deg, rgba(31, 122, 140, 0.08), rgba(231, 111, 81, 0.08));
  border-bottom: 1px solid var(--ui-border);
}

.card-footer {
  background: var(--ui-surface);
  border-top: 1px solid var(--ui-border);
}

.btn-primary {
  background: var(--ui-accent);
  border-color: var(--ui-accent);
  box-shadow: 0 10px 20px rgba(31, 122, 140, 0.2);
}

.btn-primary:hover,
.btn-primary:focus {
  background: #176372;
  border-color: #176372;
}

.btn-outline-primary {
  color: var(--ui-accent);
  border-color: var(--ui-accent);
}

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

.btn-outline-warning {
  color: #a86224;
  border-color: var(--ui-warning);
}

.btn-outline-success {
  color: #1f776b;
  border-color: var(--ui-success);
}

.form-control, .form-select {
  border-radius: 12px;
  border-color: var(--ui-border);
  background: #fff;
}

.form-control:focus, .form-select:focus {
  border-color: var(--ui-accent);
  box-shadow: 0 0 0 0.2rem rgba(31, 122, 140, 0.15);
}

.table {
  border-color: var(--ui-border);
  background: #fff;
}

.table-dark {
  --bs-table-bg: #1f2937;
}

.badge.bg-success { background: var(--ui-success) !important; }
.badge.bg-warning { background: var(--ui-warning) !important; }
.badge.bg-danger { background: var(--ui-danger) !important; }

.sb-topnav.navbar {
  background: #ffffff !important;
  box-shadow: 0 8px 24px rgba(31, 42, 50, 0.12);
}

.sb-sidenav {
  background: #ffffff !important;
  border-right: 1px solid var(--ui-border);
}

.sb-sidenav .nav-link,
.sb-sidenav .sb-sidenav-menu-heading {
  color: #111827;
}

.sb-sidenav.sb-sidenav-dark,
.sb-sidenav.sb-sidenav-dark .sb-sidenav-menu .nav-link,
.sb-sidenav.sb-sidenav-dark .sb-sidenav-menu .sb-sidenav-menu-heading,
.sb-sidenav.sb-sidenav-dark .sb-sidenav-menu .nav-link.active,
.sb-sidenav.sb-sidenav-dark .sb-sidenav-menu .nav-link:hover {
  color: #111827 !important;
}

.sb-sidenav.sb-sidenav-dark .sb-sidenav-menu .nav-link .sb-nav-link-icon,
.sb-sidenav.sb-sidenav-dark .sb-sidenav-menu .nav-link.active .sb-nav-link-icon,
.sb-sidenav.sb-sidenav-dark .sb-sidenav-menu .nav-link:hover .sb-nav-link-icon {
  color: #0d6efd !important;
}

.sb-sidenav .nav-link:hover {
  color: #0b1320;
  background: rgba(13, 110, 253, 0.08);
  border-radius: 10px;
}

.sb-sidenav .nav-link .sb-nav-link-icon {
  color: #0d6efd;
}

.nav-link.collapsed .sb-sidenav-collapse-arrow {
  transform: rotate(0deg);
}

.nav-link:not(.collapsed) .sb-sidenav-collapse-arrow {
  transform: rotate(180deg);
}

.sb-sidenav-collapse-arrow {
  margin-left: auto;
  transition: transform 0.2s ease;
}

.sb-sidenav-menu-nested .nav-link {
  padding-left: 2.5rem;
  font-size: 0.875rem;
}

.sb-topnav.navbar .navbar-brand,
.sb-topnav.navbar .nav-link,
.sb-topnav.navbar .dropdown-toggle,
.sb-topnav.navbar .fa-user,
.sb-topnav.navbar .fa-bars {
  color: #111827 !important;
}

.sb-sidenav-footer {
  background: #ffffff !important;
  color: #111827;
  border-top: 1px solid var(--ui-border);
}

.auth-card {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
}

body.ui-auth #layoutAuthentication_content {
  min-height: calc(100vh - 120px);
}

@media print {
  .print-hidden,
  .sb-topnav,
  #layoutSidenav_nav,
  .sb-sidenav,
  .sb-sidenav-footer,
  .btn,
  .breadcrumb {
    display: none !important;
  }

  body.ui-theme,
  body.ui-auth {
    background: #ffffff !important;
  }

  #layoutSidenav_content {
    margin: 0 !important;
    padding: 0 !important;
  }

  .card {
    box-shadow: none !important;
    border: 1px solid #ddd !important;
  }
}

/* ---------- Professional layer ---------- */

::selection {
  background: rgba(31, 122, 140, 0.22);
}

:focus-visible {
  outline: 2px solid var(--ui-accent);
  outline-offset: 2px;
}

/* Active sidebar link (set by scripts.js:currentNav) */
.sb-sidenav .sb-sidenav-menu .nav-link.active {
  color: #0b1320 !important;
  font-weight: 600;
  background: rgba(31, 122, 140, 0.12);
  border-radius: 10px;
}

.sb-sidenav .sb-sidenav-menu .nav-link {
  border-radius: 10px;
  margin: 1px 8px;
  padding-left: 12px;
  padding-right: 12px;
}

/* Page headers */
.container-fluid.px-4 > h1.mt-4 {
  font-size: 1.65rem;
  font-weight: 700;
}

.breadcrumb {
  font-size: 0.85rem;
}

.breadcrumb-item a {
  color: var(--ui-accent);
  text-decoration: none;
}

.breadcrumb-item a:hover {
  text-decoration: underline;
}

/* Stat cards: gradient wash + lift on hover */
.card.bg-primary,
.card.bg-success,
.card.bg-warning,
.card.bg-danger,
.card.bg-info {
  border: none;
}

.card.bg-primary { background: linear-gradient(135deg, #1f7a8c, #155e6b) !important; }
.card.bg-success { background: linear-gradient(135deg, #2a9d8f, #1f776b) !important; }
.card.bg-warning { background: linear-gradient(135deg, #e9a23b, #c77e1f) !important; }
.card.bg-danger { background: linear-gradient(135deg, #e63946, #b91c28) !important; }
.card.bg-info { background: linear-gradient(135deg, #1d9bf0, #0b6cab) !important; }

.card.bg-primary.shadow,
.card.bg-success.shadow,
.card.bg-warning.shadow,
.card.bg-danger.shadow,
.card.bg-info.shadow {
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

a.stretched-link:hover ~ .card-body,
.card:has(a.stretched-link:hover) {
  transform: translateY(-2px);
}

/* Tables */
.table-responsive {
  border-radius: 0 0 var(--ui-radius) var(--ui-radius);
}

.table > thead th {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.table > tbody > tr {
  transition: background 0.12s ease;
}

.table-striped > tbody > tr:hover {
  --bs-table-accent-bg: rgba(31, 122, 140, 0.06);
}

.table td, .table th {
  padding: 0.65rem 0.75rem;
  vertical-align: middle;
}

/* Buttons */
.btn {
  border-radius: 10px;
  font-weight: 500;
}

.btn-sm {
  border-radius: 8px;
}

.btn-secondary {
  background: #eef0f3;
  border-color: #eef0f3;
  color: var(--ui-ink);
}

.btn-secondary:hover {
  background: #e2e6ea;
  border-color: #e2e6ea;
  color: var(--ui-ink);
}

/* Alerts */
.alert {
  border: none;
  border-left: 4px solid;
  border-radius: 12px;
  box-shadow: var(--ui-shadow-soft);
}

.alert-success { border-left-color: var(--ui-success); }
.alert-danger { border-left-color: var(--ui-danger); }
.alert-warning { border-left-color: var(--ui-warning); }
.alert-info { border-left-color: var(--ui-accent); }

/* Modals + dropdowns + pagination */
.modal-content {
  border: none;
  border-radius: var(--ui-radius);
  box-shadow: var(--ui-shadow);
}

.dropdown-menu {
  border: 1px solid var(--ui-border);
  border-radius: 12px;
  box-shadow: var(--ui-shadow-soft);
  font-size: 0.9rem;
}

.page-link {
  color: var(--ui-accent);
  border-color: var(--ui-border);
}

.page-item.active .page-link {
  background: var(--ui-accent);
  border-color: var(--ui-accent);
}

/* DataTables filter/length controls inherit form styling */
.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
  border: 1px solid var(--ui-border);
  border-radius: 10px;
  padding: 0.3rem 0.6rem;
  margin-left: 0.4rem;
}

.dataTables_wrapper .dataTables_filter input:focus,
.dataTables_wrapper .dataTables_length select:focus {
  border-color: var(--ui-accent);
  outline: none;
  box-shadow: 0 0 0 0.2rem rgba(31, 122, 140, 0.15);
}

/* Footer */
footer.bg-light {
  background: transparent !important;
  color: var(--ui-muted);
}

/* ---------- Responsive ---------- */

@media (max-width: 767.98px) {
  .page-head {
    flex-direction: column;
    align-items: stretch !important;
  }

  .page-head .d-flex.gap-2 {
    width: 100%;
  }

  .page-head .d-flex.gap-2 .btn {
    flex: 1;
  }

  .page-title {
    font-size: 1.3rem;
  }

  .stat-value {
    font-size: 1.6rem;
  }

  table.dt-table > thead > tr > th,
  table.dt-table > tbody > tr > td {
    padding-left: 0.6rem;
    padding-right: 0.6rem;
  }

  /* Touch targets */
  .btn-sm {
    min-height: 34px;
  }

  .sb-sidenav .nav-link {
    padding-top: 0.7rem;
    padding-bottom: 0.7rem;
  }
}

/* ---------- Accessibility ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-animate,
  .stagger > *,
  .card:has(a.stretched-link:hover) {
    animation: none !important;
    transition: none !important;
    transform: none !important;
  }
}

/* Visible keyboard focus for interactive table controls */
.dt-table .btn-sm:focus-visible,
.page-head .btn:focus-visible,
.sb-sidenav .nav-link:focus-visible {
  outline: 2px solid var(--ui-accent);
  outline-offset: 2px;
}

/* Never convey status by color alone: pills always carry text labels,
   charts pair color with captions (see dashboard legends). */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Page headers ---------- */

.page-title {
  font-size: 1.5rem;
  font-weight: 700;
}

.page-subtitle {
  color: var(--ui-muted);
  font-size: 0.92rem;
  margin-top: 0.15rem;
}

.page-head .breadcrumb {
  margin-bottom: 0.35rem;
}

/* ---------- Stat cards ---------- */

.stat-card {
  border: none;
  color: #fff;
  overflow: hidden;
  position: relative;
}

.stat-card.stat-teal { background: linear-gradient(135deg, #1f7a8c, #155e6b); }
.stat-card.stat-blue { background: linear-gradient(135deg, #2563eb, #1e40af); }
.stat-card.stat-green { background: linear-gradient(135deg, #2a9d8f, #1f776b); }
.stat-card.stat-amber { background: linear-gradient(135deg, #d97706, #b45309); }
.stat-card.stat-red { background: linear-gradient(135deg, #e63946, #b91c28); }
.stat-card.stat-purple { background: linear-gradient(135deg, #7c3aed, #5b21b6); }

.stat-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.85;
  margin-bottom: 0.15rem;
}

.stat-value {
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.stat-sub {
  font-size: 0.8rem;
  opacity: 0.75;
  margin-top: 0.15rem;
}

.stat-icon {
  font-size: 2rem;
  opacity: 0.35;
}

.stat-link {
  display: inline-block;
  margin-top: 0.6rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: #fff;
  opacity: 0.9;
  text-decoration: none;
}

.stat-link:hover {
  color: #fff;
  opacity: 1;
  text-decoration: underline;
}

/* ---------- Empty states ---------- */

.empty-state {
  padding: 2rem 1rem;
}

.empty-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(31, 122, 140, 0.1);
  color: var(--ui-accent);
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
}

.empty-title {
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.empty-message {
  color: var(--ui-muted);
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* ---------- Row action dropdown trigger ---------- */

.btn-row-menu {
  background: #eef2f5;
  border-color: #eef2f5;
  color: #374151;
  padding: 0.3rem 0.6rem;
  border-radius: 8px;
}

.btn-row-menu:hover {
  background: #dde5ea;
  border-color: #dde5ea;
  color: #111827;
}

.dropdown-menu .dropdown-item {
  font-size: 0.88rem;
  padding: 0.45rem 1rem;
  border-radius: 8px;
}

.dropdown-menu .dropdown-item i {
  width: 1.1rem;
  text-align: center;
  color: var(--ui-muted);
}

.dropdown-menu .dropdown-item.text-danger i {
  color: inherit;
}

/* ---------- Confirm modal ---------- */

.confirm-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #fdecec;
  color: #c62828;
  font-size: 1.3rem;
}

/* ---------- Data tables (x-data-table + .dt-table) ---------- */

/* Card chrome follows the table, even when pages use plain divs,
   thanks to :has() — no per-page wrapper edits required. */
.card:has(> .card-body > table.dt-table),
.card:has(> .table-responsive > table.dt-table),
.data-table-card {
  overflow: hidden;
}

.data-table-card .card-header,
.card:has(table.dt-table) > .card-header {
  background: #fff;
  border-bottom: 1px solid var(--ui-border);
  font-weight: 600;
  padding: 0.85rem 1.1rem;
}

.data-table-card .card-body,
.card:has(table.dt-table) > .card-body {
  padding: 0;
}

.data-table-card .dataTables_wrapper,
.card:has(table.dt-table) .dataTables_wrapper {
  padding: 0.9rem 1.1rem 1.1rem;
}

/* Modern grid: no outer borders, hairline row dividers */
table.dt-table {
  margin-bottom: 0;
  border-color: var(--ui-border);
}

table.dt-table > :not(caption) > * > * {
  border-bottom-width: 1px;
  border-color: #eef1f4;
}

table.dt-table.table-bordered > :not(caption) > * > * {
  border-left-width: 0;
  border-right-width: 0;
}

table.dt-table > thead > tr > th {
  background: #1f2937;
  color: #f8fafc;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  padding: 0.7rem 0.9rem;
  border-bottom: none;
  white-space: nowrap;
}

table.dt-table > thead > tr > th:first-child {
  border-top-left-radius: 0;
}

table.dt-table > tbody > tr > td {
  padding: 0.65rem 0.9rem;
  vertical-align: middle;
}

table.dt-table.table-striped > tbody > tr:nth-of-type(odd) > * {
  --bs-table-accent-bg: #f8fafc;
}

table.dt-table > tbody > tr {
  transition: background 0.12s ease;
}

table.dt-table > tbody > tr:hover > * {
  --bs-table-accent-bg: rgba(31, 122, 140, 0.07);
}

/* Row counter column */
table.dt-table > tbody > tr > td:first-child {
  color: var(--ui-muted);
  font-variant-numeric: tabular-nums;
}

/* Action buttons: quiet icon buttons until hover */
.dt-table .btn-sm {
  padding: 0.3rem 0.5rem;
  border-radius: 8px;
  margin-right: 0.25rem;
}

.dt-table .btn-sm:last-child {
  margin-right: 0;
}

.dt-table .btn-secondary {
  background: #eef2f5;
  border-color: #eef2f5;
  color: #374151;
}

.dt-table .btn-secondary:hover {
  background: #dde5ea;
  border-color: #dde5ea;
  color: #111827;
}

.dt-table .btn-warning {
  background: #fef3e2;
  border-color: #fef3e2;
  color: #b45309;
}

.dt-table .btn-warning:hover {
  background: #fde4c4;
  border-color: #fde4c4;
  color: #92400e;
}

.dt-table .btn-danger {
  background: #fdecec;
  border-color: #fdecec;
  color: #c62828;
}

.dt-table .btn-danger:hover {
  background: #f9d2d2;
  border-color: #f9d2d2;
  color: #991b1b;
}

.dt-table .btn-info {
  background: #e8f0fe;
  border-color: #e8f0fe;
  color: #1565c0;
}

.dt-table .btn-info:hover {
  background: #d3e3fd;
  border-color: #d3e3fd;
  color: #0d47a1;
}

/* Status pills with dot */
.dt-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
}

.dt-pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.dt-pill-green { background: #e5f5ea; color: #16803c; }
.dt-pill-amber { background: #fef3e2; color: #b45309; }
.dt-pill-red { background: #fdecec; color: #c62828; }
.dt-pill-blue { background: #e8f0fe; color: #1565c0; }
.dt-pill-grey { background: #eef2f5; color: #475569; }
.dt-pill-purple { background: #f1eafe; color: #6d28d9; }

/* Empty state rows */
.dt-table td.dt-empty {
  padding: 2.5rem 1rem !important;
  color: var(--ui-muted);
  font-size: 0.95rem;
}

/* Monospace identifiers (reg nos, PINs, serials) */
.dt-table td.dt-mono {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.85em;
}