/*
 * Component system — Sprint 1 (UI redesign).
 *
 * Restyles the exact Bootstrap 5 component classes this app's existing
 * templates/JS already use (buttons, cards, tables, forms, modals,
 * dropdowns, ...) so every business page (dashboard/reports/admin, left
 * untouched this sprint) inherits the new visual language for free, plus
 * a handful of new classes for things Bootstrap has no strong default
 * for (search box, filter bar, empty state, skeleton loader).
 *
 * Bootstrap's own JS (bootstrap.bundle.min.js — modals, dropdowns,
 * tooltips, collapse) is untouched and still does 100% of the interactive
 * behavior; only appearance changes here. Everything is keyed off the
 * tokens in tokens.css — no hardcoded colors/spacing below.
 */

/* ---------------------------------------------------------------------
   Base
--------------------------------------------------------------------- */

html,
body {
  height: 100%;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  font-weight: var(--font-weight-body);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-family-base);
  color: var(--color-text-primary);
  margin: 0;
}

.display,
h1,
.h1 {
  font-size: var(--font-size-h1);
  line-height: var(--line-height-h1);
  letter-spacing: var(--letter-spacing-h1);
  font-weight: var(--font-weight-h1);
}

.display {
  font-size: var(--font-size-display);
  line-height: var(--line-height-display);
  letter-spacing: var(--letter-spacing-display);
  font-weight: var(--font-weight-display);
}

h2,
.h2 {
  font-size: var(--font-size-h2);
  line-height: var(--line-height-h2);
  letter-spacing: var(--letter-spacing-h2);
  font-weight: var(--font-weight-h2);
}

h3,
.h3 {
  font-size: var(--font-size-h3);
  line-height: var(--line-height-h3);
  font-weight: var(--font-weight-h3);
}

h4,
.h4 {
  font-size: var(--font-size-h4);
  line-height: var(--line-height-h4);
  font-weight: var(--font-weight-h4);
}

small,
.text-small {
  font-size: var(--font-size-small);
  line-height: var(--line-height-small);
}

.text-caption {
  font-size: var(--font-size-caption);
  line-height: var(--line-height-caption);
  letter-spacing: var(--letter-spacing-caption);
  font-weight: var(--font-weight-caption);
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.text-muted,
.text-secondary {
  color: var(--color-text-secondary) !important;
}

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

::selection {
  background: var(--color-primary-subtle);
  color: var(--color-text-primary);
}

/* Visible focus ring everywhere, keyboard or not — accessibility
   requirement (Sprint 1: "Visible focus", "Keyboard navigation"). */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ---------------------------------------------------------------------
   Buttons
--------------------------------------------------------------------- */

.btn {
  font-family: var(--font-family-base);
  font-size: var(--font-size-button);
  font-weight: var(--font-weight-button);
  line-height: 1.2;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
}

.btn:active {
  transform: translateY(0.5px);
}

.btn-sm {
  padding: 0.3125rem 0.625rem;
  font-size: var(--font-size-small);
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.625rem 1.125rem;
  font-size: 1rem;
  border-radius: var(--radius-md);
}

.btn-primary {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-on-primary);
  box-shadow: var(--shadow-xs);
}
.btn-primary:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-text-on-primary);
}
.btn-primary:focus-visible {
  box-shadow: 0 0 0 4px var(--color-focus-ring);
}
.btn-primary:active {
  background-color: var(--color-primary-active);
  border-color: var(--color-primary-active);
}

.btn-secondary {
  background-color: var(--color-surface);
  border-color: var(--color-border-strong);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-xs);
}
.btn-secondary:hover {
  background-color: var(--color-hover);
  border-color: var(--color-border-strong);
  color: var(--color-text-primary);
}
.btn-secondary:focus-visible {
  box-shadow: 0 0 0 4px var(--color-focus-ring);
}

.btn-outline-light,
.btn-outline-secondary {
  background-color: transparent;
  border-color: var(--color-border-strong);
  color: var(--color-text-primary);
}
.btn-outline-light:hover,
.btn-outline-secondary:hover {
  background-color: var(--color-hover);
  color: var(--color-text-primary);
}

.btn-danger {
  background-color: var(--color-danger);
  border-color: var(--color-danger);
  color: #ffffff;
}
.btn-danger:hover {
  filter: brightness(0.92);
  color: #ffffff;
}

.btn:disabled,
.btn.disabled {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

/* Loading state: <button class="btn btn-primary is-loading"> — swaps in a
   spinner via CSS only, no JS required, label stays in the DOM (hidden)
   so the button's accessible name doesn't change. */
.btn.is-loading {
  color: transparent !important;
  pointer-events: none;
  position: relative;
}
.btn.is-loading::after {
  content: "";
  position: absolute;
  width: 1em;
  height: 1em;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-top-color: transparent;
  color: inherit;
  animation: spin 0.6s linear infinite;
  /* Re-assert visibility of the pseudo-element's own currentColor even
     though the button text was forced transparent above. */
  opacity: 0.9;
}
.btn-primary.is-loading::after {
  color: var(--color-text-on-primary);
}
.btn-secondary.is-loading::after,
.btn-outline-secondary.is-loading::after {
  color: var(--color-text-primary);
}

.icon-spin {
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---------------------------------------------------------------------
   Forms
--------------------------------------------------------------------- */

.form-label {
  font-size: var(--font-size-small);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.form-text {
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
}

.form-control,
.form-select {
  font-family: var(--font-family-base);
  font-size: var(--font-size-body);
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.75rem;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

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

.form-control:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-focus-ring);
  outline: none;
}

.form-control-sm {
  padding: 0.3125rem 0.625rem;
  font-size: var(--font-size-small);
  border-radius: var(--radius-sm);
}

.form-control:disabled,
.form-select:disabled,
.form-control[readonly] {
  background-color: var(--color-disabled-bg);
  color: var(--color-disabled-text);
  border-color: var(--color-border);
  opacity: 1;
}

.form-control.is-valid,
.form-select.is-valid {
  border-color: var(--color-success);
}
.form-control.is-valid:focus,
.form-select.is-valid:focus {
  box-shadow: 0 0 0 4px var(--color-success-border);
}

.form-control.is-invalid,
.form-select.is-invalid {
  border-color: var(--color-danger);
}
.form-control.is-invalid:focus,
.form-select.is-invalid:focus {
  box-shadow: 0 0 0 4px var(--color-danger-border);
}

.valid-feedback {
  color: var(--color-success);
  font-size: var(--font-size-small);
}
.invalid-feedback {
  color: var(--color-danger);
  font-size: var(--font-size-small);
}

/* Password reveal — a plain button absolutely positioned inside a wrapper
   with position:relative; markup convention documented in
   app/static/js/theme.js's neighbor, sidebar.js is unrelated to this, see
   README component notes. */
.input-with-action {
  position: relative;
  display: flex;
}
.input-with-action .form-control {
  padding-right: 2.5rem;
}
.input-action-btn {
  position: absolute;
  right: 0.25rem;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  padding: 0.375rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  cursor: pointer;
}
.input-action-btn:hover {
  background: var(--color-hover);
  color: var(--color-text-primary);
}

.password-toggle-icon-hide {
  display: none;
}
.input-action-btn[aria-pressed="true"] .password-toggle-icon-show {
  display: none;
}
.input-action-btn[aria-pressed="true"] .password-toggle-icon-hide {
  display: inline-flex;
}

.char-counter {
  font-size: var(--font-size-caption);
  color: var(--color-muted);
  text-align: right;
}
.char-counter.is-over-limit {
  color: var(--color-danger);
  font-weight: 600;
}

/* Checkboxes */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 1.25rem;
}

.form-check-input {
  appearance: none;
  -webkit-appearance: none;
  width: 1.125rem;
  height: 1.125rem;
  margin: 0;
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  cursor: pointer;
  flex-shrink: 0;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast);
  background-repeat: no-repeat;
  background-position: center;
  background-size: 0.75rem;
}

.form-check-input[type="radio"] {
  border-radius: var(--radius-full);
}

.form-check-input:checked {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
}

.form-check-input[type="radio"]:checked {
  background-image: none;
  box-shadow: inset 0 0 0 3px var(--color-surface);
}

.form-check-input:focus-visible {
  box-shadow: 0 0 0 4px var(--color-focus-ring);
  outline: none;
}

.form-check-input:disabled {
  background-color: var(--color-disabled-bg);
  border-color: var(--color-border);
  cursor: not-allowed;
}

.form-check-label {
  font-size: var(--font-size-body);
  color: var(--color-text-primary);
  cursor: pointer;
}

/* Switches */
.form-switch {
  padding-left: 0;
}
.form-switch .form-check-input {
  width: 2.25rem;
  height: 1.25rem;
  border-radius: var(--radius-full);
  background-color: var(--color-border-strong);
  border-color: transparent;
  background-image: radial-gradient(circle closest-side, #fff 100%, transparent 0);
  background-size: 0.875rem 0.875rem;
  background-position: 0.2rem center;
  transition:
    background-color var(--transition-base),
    background-position var(--transition-base);
}
.form-switch .form-check-input:checked {
  background-color: var(--color-primary);
  background-position: calc(100% - 0.2rem) center;
}

/* ---------------------------------------------------------------------
   Cards
--------------------------------------------------------------------- */

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
}

.card-header,
.card-footer {
  background-color: transparent;
  border-color: var(--color-border);
  padding: var(--space-4) var(--space-5);
}

.card-body {
  padding: var(--space-5);
}

/* ---------------------------------------------------------------------
   Tables
--------------------------------------------------------------------- */

.table {
  --bs-table-bg: transparent;
  --bs-table-striped-bg: var(--color-hover);
  --bs-table-hover-bg: var(--color-hover);
  --bs-table-border-color: var(--color-border);
  color: var(--color-text-primary);
  font-size: var(--font-size-small);
  vertical-align: middle;
}

.table > thead > tr > th {
  font-size: var(--font-size-caption);
  letter-spacing: var(--letter-spacing-caption);
  text-transform: uppercase;
  font-weight: 600;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-surface);
}

.table > tbody > tr > td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.table > tbody > tr:last-child > td {
  border-bottom: none;
}

.table-sticky-header thead th {
  position: sticky;
  top: 0;
  z-index: 1;
}

.table > tbody > tr.is-selected > td {
  background-color: var(--color-primary-subtle);
}

/* ---------------------------------------------------------------------
   Badges / tags
--------------------------------------------------------------------- */

.badge {
  font-family: var(--font-family-base);
  font-size: var(--font-size-caption);
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  line-height: 1.3;
}

.badge-neutral,
.text-bg-secondary {
  background-color: var(--color-secondary-subtle) !important;
  color: var(--color-text-secondary) !important;
}
.badge-primary,
.text-bg-primary {
  background-color: var(--color-primary-subtle) !important;
  color: var(--color-primary) !important;
}
.badge-success,
.text-bg-success {
  background-color: var(--color-success-subtle) !important;
  color: var(--color-success) !important;
}
.badge-warning,
.text-bg-warning {
  background-color: var(--color-warning-subtle) !important;
  color: var(--color-warning) !important;
}
.badge-danger,
.text-bg-danger {
  background-color: var(--color-danger-subtle) !important;
  color: var(--color-danger) !important;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: var(--font-size-small);
  font-weight: 500;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  background-color: var(--color-secondary-subtle);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

/* ---------------------------------------------------------------------
   Alerts
--------------------------------------------------------------------- */

.alert {
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-small);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}

.alert-primary {
  background-color: var(--color-primary-subtle);
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.alert-success {
  background-color: var(--color-success-subtle);
  border-color: var(--color-success-border);
  color: var(--color-success);
}
.alert-warning {
  background-color: var(--color-warning-subtle);
  border-color: var(--color-warning-border);
  color: var(--color-warning);
}
.alert-danger,
.error-state {
  background-color: var(--color-danger-subtle);
  border-color: var(--color-danger-border);
  color: var(--color-danger);
}

/* ---------------------------------------------------------------------
   Dropdowns (Bootstrap JS-driven — appearance only)
--------------------------------------------------------------------- */

.dropdown-menu {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  background-color: var(--color-surface-raised);
  padding: var(--space-2);
  min-width: 12rem;
}

.dropdown-item {
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.625rem;
  font-size: var(--font-size-small);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.dropdown-item:hover,
.dropdown-item:focus {
  background-color: var(--color-hover);
  color: var(--color-text-primary);
}

.dropdown-item.active,
.dropdown-item:active {
  background-color: var(--color-primary-subtle);
  color: var(--color-primary);
}

.dropdown-divider {
  border-color: var(--color-border);
  margin: var(--space-2) 0;
}

.dropdown-header {
  font-size: var(--font-size-caption);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-caption);
  color: var(--color-muted);
  padding: 0.375rem 0.625rem;
}

/* ---------------------------------------------------------------------
   Breadcrumbs
--------------------------------------------------------------------- */

.breadcrumb {
  font-size: var(--font-size-small);
  margin: 0;
  --bs-breadcrumb-divider: "/";
}

.breadcrumb-item a {
  color: var(--color-text-secondary);
}
.breadcrumb-item a:hover {
  color: var(--color-text-primary);
}
.breadcrumb-item.active {
  color: var(--color-text-primary);
  font-weight: 500;
}

/* ---------------------------------------------------------------------
   Tabs
--------------------------------------------------------------------- */

.nav-tabs {
  border-bottom: 1px solid var(--color-border);
  gap: var(--space-4);
}

.nav-tabs .nav-link {
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-small);
  font-weight: 500;
  padding: 0.625rem 0.125rem;
  transition:
    color var(--transition-fast),
    border-color var(--transition-fast);
}

.nav-tabs .nav-link:hover {
  color: var(--color-text-primary);
  border-color: var(--color-border-strong);
}

.nav-tabs .nav-link.active {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: transparent;
}

/* ---------------------------------------------------------------------
   Tooltips (Bootstrap JS-driven)
--------------------------------------------------------------------- */

.tooltip .tooltip-inner {
  background-color: var(--color-text-primary);
  color: var(--color-surface);
  font-size: var(--font-size-caption);
  border-radius: var(--radius-sm);
  padding: 0.375rem 0.625rem;
  box-shadow: var(--shadow-md);
}

[data-bs-theme="dark"] .tooltip .tooltip-inner {
  background-color: var(--color-surface-raised);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-strong);
}

.tooltip.bs-tooltip-top .tooltip-arrow::before {
  border-top-color: var(--color-text-primary);
}
[data-bs-theme="dark"] .tooltip.bs-tooltip-top .tooltip-arrow::before {
  border-top-color: var(--color-surface-raised);
}

/* ---------------------------------------------------------------------
   Modals / confirmation dialog
--------------------------------------------------------------------- */

.modal-backdrop {
  --bs-backdrop-bg: var(--color-overlay);
  --bs-backdrop-opacity: 1;
}

.modal-content {
  background-color: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.modal-header {
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-5);
}

.modal-title {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-h3);
}

.modal-body {
  padding: var(--space-5);
}

.modal-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-5);
}

.modal.fade .modal-dialog {
  transform: translateY(8px) scale(0.98);
  transition: transform var(--transition-base), opacity var(--transition-base);
}
.modal.show .modal-dialog {
  transform: translateY(0) scale(1);
}

.modal-confirm .modal-body {
  text-align: center;
  padding-top: var(--space-2);
}
.modal-confirm-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
}
.modal-confirm-icon.is-danger {
  background-color: var(--color-danger-subtle);
  color: var(--color-danger);
}
.modal-confirm-icon.is-warning {
  background-color: var(--color-warning-subtle);
  color: var(--color-warning);
}

/* ---------------------------------------------------------------------
   Pagination (DataTables' Bootstrap-5 integration renders these classes)
--------------------------------------------------------------------- */

.pagination {
  gap: 0.25rem;
}

.page-link {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm) !important;
  color: var(--color-text-primary);
  font-size: var(--font-size-small);
  padding: 0.375rem 0.625rem;
  margin: 0;
  background-color: var(--color-surface);
}

.page-link:hover {
  background-color: var(--color-hover);
  color: var(--color-text-primary);
  border-color: var(--color-border-strong);
}

.page-item.active .page-link {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-on-primary);
}

.page-item.disabled .page-link {
  color: var(--color-disabled-text);
  background-color: var(--color-disabled-bg);
}

/* ---------------------------------------------------------------------
   Search box / filter bar (new — no strong Bootstrap default)
--------------------------------------------------------------------- */

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-box .icon {
  position: absolute;
  left: 0.75rem;
  color: var(--color-muted);
  pointer-events: none;
}

.search-box .form-control {
  padding-left: 2.25rem;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: var(--font-size-small);
  font-weight: 500;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.filter-chip:hover {
  border-color: var(--color-border-strong);
  color: var(--color-text-primary);
}

.filter-chip.is-active {
  background-color: var(--color-primary-subtle);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ---------------------------------------------------------------------
   Empty state / loading skeleton / toast
--------------------------------------------------------------------- */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-2);
  padding: var(--space-12) var(--space-4);
  color: var(--color-text-secondary);
}

.empty-state .icon {
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}

.empty-state-title {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-h4);
  color: var(--color-text-primary);
}

.skeleton {
  position: relative;
  overflow: hidden;
  background-color: var(--color-border);
  border-radius: var(--radius-sm);
  color: transparent !important;
}

.skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, var(--color-hover), transparent);
  animation: skeleton-sweep 1.4s ease-in-out infinite;
}

@keyframes skeleton-sweep {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(100%);
  }
}

.skeleton-text {
  height: 0.875rem;
  width: 100%;
  margin-bottom: var(--space-2);
}
.skeleton-text.is-short {
  width: 40%;
}

.toast {
  background-color: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.toast-header {
  background-color: transparent;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-primary);
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
}

.toast-body {
  color: var(--color-text-primary);
  font-size: var(--font-size-small);
}

/* ---------------------------------------------------------------------
   Loading placeholder (existing class, restyled to match the system —
   app.css keeps ownership of app-specific glue classes; this is the
   shared visual primitive it builds on)
--------------------------------------------------------------------- */

.loading-placeholder {
  color: var(--color-text-secondary);
  font-size: var(--font-size-small);
}

/* ---------------------------------------------------------------------
   Auth pages (login) — standalone, no app shell
--------------------------------------------------------------------- */

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6) var(--space-4);
  background-color: var(--color-background);
}

.auth-card {
  width: 100%;
  max-width: 24rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--space-8);
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  justify-content: center;
  margin-bottom: var(--space-6);
}

.auth-brand .app-sidebar-logo {
  width: 2.25rem;
  height: 2.25rem;
}

.auth-heading {
  text-align: center;
  margin-bottom: var(--space-6);
}

.auth-heading h1 {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-h2);
  margin-bottom: var(--space-1);
}

.auth-heading p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-small);
  margin: 0;
}

.auth-form .form-label {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.auth-form .form-group + .form-group {
  margin-top: var(--space-4);
}

.auth-submit {
  width: 100%;
  margin-top: var(--space-6);
}

.auth-footnote {
  text-align: center;
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
  margin-top: var(--space-5);
}

/* ---------------------------------------------------------------------
   Error pages (403/404/500) — standalone, no app shell
--------------------------------------------------------------------- */

.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6) var(--space-4);
  text-align: center;
  background-color: var(--color-background);
}

.error-page-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-full);
  background-color: var(--color-danger-subtle);
  color: var(--color-danger);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-5);
}

.error-page-code {
  font-size: var(--font-size-caption);
  font-weight: 700;
  letter-spacing: var(--letter-spacing-caption);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.error-page-title {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-h2);
  margin-bottom: var(--space-2);
}

.error-page-message {
  color: var(--color-text-secondary);
  max-width: 26rem;
  margin: 0 auto var(--space-6);
}

.error-page-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
}