/**
 * Shared Components for Sarnies Inventory Dashboard
 * Reusable UI components used across all pages
 * Requires: unified.css
 */

/* ============================================================================
   KPI CARDS - Used on all dashboard pages
   ============================================================================ */

/* Grid layout for KPI cards */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

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

@media (max-width: 480px) {
    .kpi-grid {
        grid-template-columns: 1fr;
    }
}

/* Standard KPI card (larger, for main metrics) */
.kpi-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
}

.kpi-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

/* Compact KPI card (smaller, for status distribution) */
.kpi-card-compact {
    background: white;
    border: var(--border-width-medium) solid;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: center;
}

.kpi-card-compact:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.kpi-card-compact:active {
    transform: translateY(0);
}

/* KPI card variants by status */
.kpi-card-compact.critical {
    background-color: var(--color-critical-bg);
    border-color: var(--color-critical-border);
}

.kpi-card-compact.critical:hover {
    background-color: var(--color-critical-hover);
}

.kpi-card-compact.alert {
    background-color: var(--color-alert-bg);
    border-color: var(--color-alert-border);
}

.kpi-card-compact.alert:hover {
    background-color: var(--color-alert-hover);
}

.kpi-card-compact.watch {
    background-color: var(--color-watch-bg);
    border-color: var(--color-watch-border);
}

.kpi-card-compact.watch:hover {
    background-color: var(--color-watch-hover);
}

.kpi-card-compact.stable {
    background-color: var(--color-stable-bg);
    border-color: var(--color-stable-border);
}

.kpi-card-compact.stable:hover {
    background-color: var(--color-stable-hover);
}

/* KPI card content elements */
.kpi-card-label {
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
    color: var(--color-gray-600);
}

.kpi-card-value {
    font-size: 2.25rem; /* text-4xl equivalent - much bigger! */
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-gray-900);
}

.kpi-card-subtitle {
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
    color: var(--color-gray-600);
    font-weight: var(--font-weight-medium);
}

/* ============================================================================
   DATA TABLES - Universal table styling
   ============================================================================ */

.table-container {
    overflow-x: auto;
    margin: var(--spacing-md);
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--color-gray-200);
    transition: var(--transition-fast);
}

.table-container:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

@media (max-width: 1200px) {
    .table-container {
        overflow-x: scroll;
        -webkit-overflow-scrolling: touch;
    }
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: var(--font-size-sm);
    min-width: 1000px;
}

/* Sticky header - works with DataTables */
.data-table thead th {
    position: sticky;
    top: 0;
    z-index: var(--z-dropdown);
    background: linear-gradient(to bottom, #f8fafc, #f1f5f9);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.data-table thead th {
    padding: 1rem var(--spacing-md);
    text-align: left;
    font-weight: var(--font-weight-bold);
    color: rgb(31, 41, 55) !important;  /* Always dark gray, not affected by dark mode */
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    border-bottom: 2px solid var(--color-gray-300);
}

/* Numeric columns - right aligned */
.data-table thead th.numeric,
.data-table tbody td.numeric {
    text-align: right;
    font-family: var(--font-family-mono);
    font-variant-numeric: tabular-nums;
}

/* Table rows - striped with subtle alternating colors */
.data-table tbody tr {
    border-bottom: var(--border-width-thin) solid var(--color-gray-200);
    transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

.data-table tbody tr:nth-child(even) {
    background-color: rgba(249, 250, 251, 0.5);
}

.data-table tbody tr:hover {
    background-color: rgba(59, 130, 246, 0.08);
    cursor: pointer;
}

.data-table tbody td {
    padding: 1rem var(--spacing-md);
    vertical-align: middle;
    font-size: 0.875rem;
    color: rgb(17, 24, 39) !important;  /* Always dark gray, not affected by dark mode */
}

/* Conditional row colors by status */
.data-table tbody tr.status-critical {
    background-color: var(--color-critical-row);
    border-left: var(--border-width-thick) solid var(--color-critical-border);
}

.data-table tbody tr.status-critical:hover {
    background-color: var(--color-critical-hover);
}

.data-table tbody tr.status-alert {
    background-color: var(--color-alert-row);
    border-left: var(--border-width-thick) solid var(--color-alert-border);
}

.data-table tbody tr.status-alert:hover {
    background-color: var(--color-alert-hover);
}

.data-table tbody tr.status-watch {
    background-color: var(--color-watch-row);
    border-left: var(--border-width-thick) solid var(--color-watch-border);
}

.data-table tbody tr.status-watch:hover {
    background-color: var(--color-watch-hover);
}

.data-table tbody tr.status-stable {
    background-color: var(--color-stable-row);
    border-left: var(--border-width-thick) solid var(--color-stable-border);
}

.data-table tbody tr.status-stable:hover {
    background-color: var(--color-stable-hover);
}

/* Responsive table */
@media (max-width: 768px) {
    .data-table {
        font-size: var(--font-size-xs);
    }

    .data-table thead th,
    .data-table tbody td {
        padding: var(--spacing-sm);
    }
}

/* ============================================================================
   STATUS BADGES - Used across all pages
   ============================================================================ */

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    white-space: nowrap;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

.status-badge:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.status-badge.critical {
    background-color: var(--color-critical-bg);
    color: var(--color-critical-text);
    border: 1px solid var(--color-critical-border);
}

.status-badge.alert {
    background-color: var(--color-alert-bg);
    color: var(--color-alert-text);
    border: 1px solid var(--color-alert-border);
}

.status-badge.watch {
    background-color: var(--color-watch-bg);
    color: var(--color-watch-text);
    border: 1px solid var(--color-watch-border);
}

.status-badge.stable {
    background-color: var(--color-stable-bg);
    color: var(--color-stable-text);
    border: 1px solid var(--color-stable-border);
}

/* Delta percentage badge - slightly larger and more prominent */
.delta-percent {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.375rem var(--spacing-sm);
    border-radius: var(--border-radius-md);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-sm);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

.delta-percent:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.delta-percent.critical {
    background-color: var(--color-critical-bg);
    color: var(--color-critical-text);
    border: 1px solid var(--color-critical-border);
}

.delta-percent.alert {
    background-color: var(--color-alert-bg);
    color: var(--color-alert-text);
    border: 1px solid var(--color-alert-border);
}

.delta-percent.watch {
    background-color: var(--color-watch-bg);
    color: var(--color-watch-text);
    border: 1px solid var(--color-watch-border);
}

.delta-percent.stable {
    background-color: var(--color-stable-bg);
    color: var(--color-stable-text);
    border: 1px solid var(--color-stable-border);
}

.delta-arrow {
    font-size: var(--font-size-lg);
    line-height: 1;
    font-weight: var(--font-weight-bold);
}

/* ============================================================================
   FILTERS SECTION - Reusable filter container
   ============================================================================ */

.filters-section {
    background: white;
    border-bottom: var(--border-width-thin) solid var(--color-gray-200);
    padding: var(--spacing-md);
}

.filters-section summary {
    cursor: pointer;
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-700);
    font-size: var(--font-size-base);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-md);
    transition: var(--transition-fast);
    list-style: none;
}

.filters-section summary::-webkit-details-marker {
    display: none;
}

.filters-section summary:hover {
    color: var(--color-blue-600);
    background-color: var(--color-gray-50);
}

.filters-section summary .hint {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    font-weight: var(--font-weight-normal);
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

@media (max-width: 1024px) {
    .filters-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .filters-grid {
        grid-template-columns: 1fr;
    }
}

/* Filter inputs */
.filter-input {
    width: 100%;
    padding: var(--spacing-sm);
    border: var(--border-width-thin) solid var(--color-gray-300);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.filter-input:focus {
    outline: none;
    border-color: var(--color-blue-600);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.filter-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-700);
    display: block;
    margin-bottom: var(--spacing-xs);
}

/* ============================================================================
   BUTTONS - Consistent button styles
   ============================================================================ */

.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn:focus {
    outline: var(--border-width-medium) solid var(--color-blue-600);
    outline-offset: 2px;
}

.btn-primary {
    background-color: var(--color-blue-600);
    color: white;
}

.btn-primary:hover {
    background-color: var(--color-blue-700);
}

.btn-secondary {
    background-color: white;
    color: var(--color-gray-700);
    border: var(--border-width-thin) solid var(--color-gray-300);
}

.btn-secondary:hover {
    background-color: var(--color-gray-50);
}

/* ============================================================================
   LOADING SKELETON - Universal loading state
   ============================================================================ */

.table-skeleton {
    padding: var(--spacing-md);
}

.skeleton-row {
    height: 48px;
    background: linear-gradient(
        90deg,
        var(--color-gray-200) 0%,
        var(--color-gray-100) 50%,
        var(--color-gray-200) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-sm);
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ============================================================================
   TOOLTIPS - Reusable tooltip styling
   ============================================================================ */

.tooltip-trigger {
    position: relative;
    cursor: help;
}

.tooltip-trigger[title]::after {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-gray-900);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-xs);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
    z-index: var(--z-tooltip);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-xs);
}

.tooltip-trigger:hover::after {
    opacity: 1;
}

/* ============================================================================
   PAGE HEADER - Standard page header with title
   ============================================================================ */

.page-header {
    background: linear-gradient(to right, var(--color-blue-50), var(--color-blue-100));
    border-bottom: var(--border-width-thin) solid var(--color-gray-200);
    padding: var(--spacing-md);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    box-shadow: var(--shadow-sm);
}

.page-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin: 0;
}

.page-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-top: var(--spacing-xs);
}

/* ============================================================================
   ACCESSIBILITY - Focus states and keyboard navigation
   ============================================================================ */

.kpi-card-compact:focus,
.data-table tbody tr:focus {
    outline: var(--border-width-medium) solid var(--color-blue-600);
    outline-offset: 2px;
}

.data-table tbody tr:focus-visible {
    background-color: var(--color-blue-50);
}

/* ============================================================================
   RESPONSIVE UTILITIES
   ============================================================================ */

.hide-mobile {
    display: block;
}

@media (max-width: 768px) {
    .hide-mobile {
        display: none;
    }
}

.hide-desktop {
    display: none;
}

@media (max-width: 768px) {
    .hide-desktop {
        display: block;
    }
}

/* ============================================================================
   REDUCED MOTION - Accessibility
   ============================================================================ */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}
/* ===== UPGRADE: Status KPI cards (CRITICAL / ALERT / WATCH / STABLE) ===== */

/* Make cards feel clickable & host ripple */
.kpi-card-compact {
  position: relative;
  overflow: hidden;      /* for ripple */
  isolation: isolate;    /* keep ripple inside */
  box-shadow: var(--shadow-sm);
}

/* Stronger hover / press feedback */
.kpi-card-compact:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.kpi-card-compact:active {
  transform: translateY(0) scale(.99);
}

/* Selected / Active state (add .is-active to the chosen one) */
.kpi-card-compact.is-active {
  border-width: var(--border-width-thick);
  box-shadow: 0 10px 24px rgba(0,0,0,.10), inset 0 0 0 2px rgba(0,0,0,.03);
  color: currentColor;
}
.kpi-card-compact.is-active .kpi-card-label { color: currentColor; }

/* Per-status accent when active (uses your existing vars) */
.kpi-card-compact.is-active.critical { color: var(--color-critical-border); }
.kpi-card-compact.is-active.alert    { color: var(--color-alert-border); }
.kpi-card-compact.is-active.watch    { color: var(--color-watch-border); }
.kpi-card-compact.is-active.stable   { color: var(--color-stable-border); }

/* Ripple (CSS-only; improved with tiny JS below) */
.kpi-card-compact::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--rx,50%) var(--ry,50%), currentColor 0%, transparent 40%);
  opacity: 0;
  transform: scale(0);
  pointer-events: none;
  mix-blend-mode: multiply;
}
.kpi-card-compact:active::after { animation: kpiRipple .45s ease-out forwards; }

@keyframes kpiRipple {
  0%   { opacity: .20; transform: scale(0); }
  100% { opacity: 0;   transform: scale(6); }
}