/**
 * Shared UI components — Operation Guide design system (Phase B).
 * Loaded globally after main.css. Guide refs: css-layout, scrollability-affordance-hints.
 */

/* ── Page header (gradient card) ── */
.og-page-header.header-card,
.header-card.og-page-header {
  margin-bottom: var(--space-6);
}

.og-page-header .btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.85);
  color: var(--text-inverse);
}

/* ── Stat tile ── */
.og-stat-tile {
  background: var(--surface-raised);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.og-stat-tile:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.og-stat-tile__icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: var(--font-size-lg);
}

.og-stat-tile__icon--primary {
  background: rgba(var(--primary-rgb), 0.12);
  color: var(--primary);
}

.og-stat-tile__icon--success {
  background: rgba(var(--success-rgb), 0.12);
  color: var(--success);
}

.og-stat-tile__value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--text-primary);
  margin: 0;
}

.og-stat-tile__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-muted);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ── Action bar ── */
.og-action-bar {
  background: var(--surface-raised);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.og-action-bar .card-body {
  padding: var(--space-3) var(--space-4);
}

/* ── Empty & loading states ── */
.og-empty-state,
.og-loading-state {
  padding: var(--space-8) var(--space-6);
  text-align: center;
  color: var(--text-muted);
}

.og-empty-state__icon {
  font-size: var(--font-size-3xl);
  opacity: 0.45;
  margin-bottom: var(--space-3);
  display: block;
}

.og-loading-state .spinner-border {
  margin-bottom: var(--space-3);
}

/* ── Data table enhancements ── */
.og-data-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background:
    linear-gradient(to right, var(--surface-color) 30%, transparent) left center / 12px 100% no-repeat,
    linear-gradient(to left, var(--surface-color) 30%, transparent) right center / 12px 100% no-repeat;
  background-attachment: local, local;
}

.og-data-table-wrap .table thead th {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--nav-gradient);
  color: var(--text-inverse);
  border-bottom: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  white-space: nowrap;
}

.og-data-table-wrap .table caption {
  caption-side: top;
  padding: var(--space-2) var(--space-3);
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  text-align: left;
}

/* ── Filter panel (collapsible on mobile) ── */
.og-filter-panel {
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius);
  background: var(--surface-raised);
  margin-bottom: var(--space-4);
}

.og-filter-panel__toggle {
  width: 100%;
  text-align: left;
  padding: var(--space-3) var(--space-4);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .og-filter-panel__toggle {
    display: none;
  }

  .og-filter-panel__body {
    display: block !important;
  }
}

/* ── Semantic badges (app-wide) ── */
.og-badge-muted {
  background: var(--badge-neutral-bg) !important;
  color: var(--badge-neutral-text) !important;
}

.og-badge-info {
  background: var(--badge-info-bg) !important;
  color: var(--badge-info-text) !important;
}

.og-badge-success {
  background: var(--badge-success-bg) !important;
  color: var(--badge-success-text) !important;
}

.og-badge-warning {
  background: var(--badge-warning-bg) !important;
  color: var(--badge-warning-text) !important;
}

.og-badge-danger {
  background: var(--badge-danger-bg) !important;
  color: var(--badge-danger-text) !important;
}

/* ── Skip link (visually hidden until focus) ── */
.og-skip-link {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
  z-index: calc(var(--z-overlay) + 1);
}

.og-skip-link:focus {
  position: fixed;
  top: var(--space-2);
  left: var(--space-2);
  width: auto;
  height: auto;
  margin: 0;
  padding: var(--space-2) var(--space-4);
  overflow: visible;
  clip: auto;
  white-space: normal;
  background: var(--surface-raised);
  color: var(--text-primary);
  border: var(--border-width) solid var(--primary);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
}

/* ── Form validation (pairs with :user-invalid in main.css) ── */
.og-form-field-error {
  font-size: var(--font-size-sm);
  color: var(--danger);
  margin-top: var(--space-1);
}

.form-control[aria-invalid="true"],
.form-select[aria-invalid="true"] {
  border-color: var(--danger);
}

/* ── Image lightbox (og-lightbox.js): click an [data-og-lightbox] image to enlarge ── */
img[data-og-lightbox] {
  cursor: zoom-in;
}

.og-lightbox-backdrop {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal, 100500);
  background: rgba(15, 23, 42, 0.82);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  cursor: zoom-out;
  animation: og-lightbox-fade 0.15s ease-out;
}

.og-lightbox-img {
  /* Scale UP to fill most of the viewport (small source images would
     otherwise show at their natural ~1024px and look tiny on big screens). */
  width: min(94vw, 60rem);
  height: auto;
  max-height: 94vh;
  object-fit: contain;
  border-radius: 0.5rem;
  background: #fff;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

@keyframes og-lightbox-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}