/* ══════════════════════════════════════════════════════════════
   Product Card Styles — Modernized
   Shared by compare, transport, and explorer pages.
   ══════════════════════════════════════════════════════════════ */

/* ── Base Card ──────────────────────────────────────────────── */
.item-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    cursor: pointer;
    position: relative;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.item-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: transparent;
    border-radius: 10px 0 0 10px;
    transition: background 0.22s ease;
    z-index: 2;
}

/* Flex-row layout for cards with checkbox strip (Explorer, Comparator) */
.products-grid-row .item-card {
    display: flex;
    flex-direction: row;
}

.products-grid-row .item-card::before {
    display: none;   /* strip replaces the accent bar */
}

.item-card:hover {
    border-color: #93c5fd;
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.10), 0 2px 4px rgba(0, 0, 0, 0.04);
    transform: translateY(-2px);
}

.item-card:hover::before {
    background: #0d6efd;
}

.item-card.selected {
    border-color: #0d6efd;
    background: linear-gradient(135deg, #eff6ff 0%, #f8faff 100%);
    box-shadow: 0 0 0 1px rgba(13, 110, 253, 0.2),
                0 4px 14px rgba(13, 110, 253, 0.12);
}

.item-card.selected::before {
    background: #0d6efd;
}

/* ── Card Body ──────────────────────────────────────────────── */
.item-card__body {
    flex: 1;
    min-width: 0;
    padding: 0.875rem 1rem;
}

.item-card__name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: block;
    font-size: 0.9375rem;
    font-weight: 600;
    color: #0f172a;
    letter-spacing: -0.01em;
    line-height: 1.4;
}

.item-card__system-id {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: block;
    font-size: 0.8125rem;
    color: #475569;
    margin-top: 0.2rem;
}

.item-card__version {
    display: block;
    font-size: 0.8125rem;
    color: #475569;
    margin-top: 0.15rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.item-card__system-id i,
.item-card__version i {
    font-size: 0.7rem;
    opacity: 0.75;
}

/* ── Version Toggle Strip ───────────────────────────────────── */
.item-card__version-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 0 0.25rem;
    border-left: 1px solid #f1f5f9;
    background: #f8fafc;
}

/* ── Checkbox Strip ─────────────────────────────────────────── */
.item-card__check-strip {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    flex-shrink: 0;
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    border-right: 1px solid #e2e8f0;
    transition: all 0.22s ease;
    cursor: pointer;
}

.item-card:hover .item-card__check-strip {
    background: linear-gradient(180deg, #eff6ff 0%, #dbeafe 100%);
    border-right-color: #93c5fd;
}

.item-card.selected .item-card__check-strip {
    background: linear-gradient(180deg, #dbeafe 0%, #bfdbfe 100%);
    border-right-color: #60a5fa;
}

/* ── Custom Checkbox ────────────────────────────────────────── */
.item-card__checkbox {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid #94a3b8;
    border-radius: 4px;
    cursor: pointer;
    margin: 0;
    position: relative;
    transition: all 0.15s ease;
    background: #fff;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.item-card__checkbox:checked {
    background: #0d6efd;
    border-color: #0d6efd;
    box-shadow: 0 1px 3px rgba(13, 110, 253, 0.3);
}

.item-card__checkbox:checked::after {
    content: '';
    position: absolute;
    left: 4px;
    top: 1px;
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.item-card__checkbox:focus-visible {
    outline: 2px solid #0d6efd;
    outline-offset: 2px;
}

/* ── Grid Layout ────────────────────────────────────────────── */
.products-grid-row .col-xl-4,
.products-grid-row .col-lg-6,
.products-grid-row .col-md-6 {
    display: flex;
}

.products-grid-row .item-card-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
}

.products-grid-row .item-card {
    width: 100%;
    height: 100%;
}

/* ── Version Panel ──────────────────────────────────────────── */
.versions-container {
    background-color: #ffffff;
}

.versions-label {
    color: #64748b;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.version-item {
    cursor: pointer;
    transition: background-color 0.15s ease;
    color: inherit;
}

.version-item.version-active {
    background-color: #f1f5f9;
}

.version-item.version-inactive {
    background-color: #f8fafc;
}

.version-item:hover {
    filter: brightness(0.97);
}

.version-item .version-icon {
    color: #64748b;
}

.explorer-versions-panel,
.compare-versions-panel {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: #fff;
    border: 1px solid #e2e8f0;
    border-top: none;
    border-radius: 0 0 10px 10px;
    max-height: 280px;
    overflow-y: auto;
    overflow-x: hidden;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    scrollbar-width: thin;
    scrollbar-color: #cbd5e1 transparent;
}

.explorer-versions-panel::-webkit-scrollbar,
.compare-versions-panel::-webkit-scrollbar {
    width: 5px;
}

.explorer-versions-panel::-webkit-scrollbar-thumb,
.compare-versions-panel::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}

.explorer-versions-panel::-webkit-scrollbar-track,
.compare-versions-panel::-webkit-scrollbar-track {
    background: transparent;
}

.item-card-wrapper:has(.explorer-versions-panel[style*="display: block"]) .item-card,
.item-card-wrapper:has(.compare-versions-panel[style*="display: block"]) .item-card {
    border-radius: 10px 10px 0 0;
    border-bottom: none;
}

.explorer-versions-toggle {
    font-size: 0.75rem;
    padding: 0.15rem 0.5rem;
    line-height: 1.4;
    white-space: nowrap;
}

.version-item--selected {
    background-color: #eff6ff !important;
    font-weight: 600;
    color: #1e40af;
}

/* ── Version Combo Trigger ──────────────────────────────────── */
.item-card__version--trigger {
    cursor: pointer;
    user-select: none;
    border-radius: 0.25rem;
    transition: background-color 0.15s ease;
    display: inline-flex;
    align-items: center;
    flex-wrap: nowrap;
    gap: 0.15rem;
    max-width: 100%;
    overflow: hidden;
}

.item-card__version--trigger:hover {
    background-color: rgba(13, 110, 253, 0.06);
}

.version-combo-icon {
    flex-shrink: 0;
    margin-left: 0.25rem;
}

.version-effdate {
    font-size: 0.675rem;
    color: #94a3b8;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}

.version-name-suffix {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
    flex-shrink: 1;
}

/* ── Versions Table ─────────────────────────────────────────── */
.versions-table {
    position: relative;
    border-collapse: collapse;
    width: 100%;
    font-size: 0.75rem;
    table-layout: fixed;
}

.versions-table thead th {
    padding: 0.2rem 0.5rem;
    background-color: #f1f5f9;
    color: #64748b;
    font-weight: 600;
    border-bottom: 1px solid #e2e8f0;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    overflow: hidden;
}

.versions-table thead th:nth-child(1) { width: 55px; }
.versions-table thead th:nth-child(2) { width: 80px; }
.versions-table thead th:nth-child(3) { }
.versions-table thead th:nth-child(4) { width: 50px; text-align: center; }

.versions-table .version-item td {
    padding: 0.3rem 0.5rem;
    border-bottom: 1px solid #f1f5f9;
    vertical-align: middle;
    white-space: nowrap;
}

.versions-table .version-item td.version-col-name {
    overflow: hidden;
    text-overflow: ellipsis;
}

.versions-table .version-item td.version-col-active {
    text-align: center;
}

.versions-table .version-item:last-child td {
    border-bottom: none;
}

/* ── Items Container ────────────────────────────────────────── */
.items-container {
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 1rem;
    background-color: #f8fafc;
}

.items-container::-webkit-scrollbar {
    width: 8px;
}

.items-container::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 4px;
}

.items-container::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

.items-container::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* ── Attributes Search ──────────────────────────────────────── */
.attrs-table-scroll {
    max-height: 420px;
    overflow-y: auto;
}

.attrs-table-scroll thead th {
    position: sticky;
    top: 0;
    z-index: 2;
    background-color: #f8fafc;
    box-shadow: inset 0 -1px 0 #e2e8f0;
}

.attrs-search {
    font-size: 0.8rem;
}

.attrs-search:focus {
    box-shadow: none;
    border-color: #0d6efd;
}

.attrs-search-count {
    min-width: 4rem;
    text-align: center;
}

/* ══════════════════════════════════════════════════════════════
   Dark Mode
   ══════════════════════════════════════════════════════════════ */

[data-theme="dark"] .items-container {
    background-color: var(--bg-secondary);
    border-color: var(--border-visible);
}

[data-theme="dark"] .item-card {
    background: var(--bg-tertiary);
    border: 1px solid rgba(148, 163, 184, 0.12);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] .item-card::before {
    background: transparent;
}

[data-theme="dark"] .item-card:hover {
    border-color: rgba(20, 184, 166, 0.35);
    background: var(--bg-elevated);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(20, 184, 166, 0.15);
    transform: translateY(-2px);
}

[data-theme="dark"] .item-card:hover::before {
    background: var(--accent-color);
}

[data-theme="dark"] .item-card.selected {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.08) 0%, var(--bg-elevated) 100%);
    border-color: rgba(20, 184, 166, 0.4);
    box-shadow: 0 0 0 1px rgba(20, 184, 166, 0.2),
                0 4px 20px rgba(0, 0, 0, 0.25),
                0 0 12px rgba(20, 184, 166, 0.08);
}

[data-theme="dark"] .item-card.selected::before {
    background: var(--accent-color);
}

[data-theme="dark"] .item-card__name {
    color: var(--text-primary);
}

[data-theme="dark"] .item-card__system-id,
[data-theme="dark"] .item-card__version {
    color: var(--text-secondary);
}

/* Checkbox strip - Dark Mode */
[data-theme="dark"] .item-card__check-strip {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, rgba(15, 23, 42, 0.7) 100%);
    border-right-color: rgba(148, 163, 184, 0.1);
}

[data-theme="dark"] .item-card:hover .item-card__check-strip {
    background: linear-gradient(180deg, rgba(20, 184, 166, 0.08) 0%, rgba(20, 184, 166, 0.04) 100%);
    border-right-color: rgba(20, 184, 166, 0.15);
}

[data-theme="dark"] .item-card.selected .item-card__check-strip {
    background: linear-gradient(180deg, rgba(20, 184, 166, 0.15) 0%, rgba(20, 184, 166, 0.08) 100%);
    border-right-color: rgba(20, 184, 166, 0.25);
}

[data-theme="dark"] .item-card__checkbox {
    border-color: var(--text-tertiary);
    background: var(--bg-primary);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .item-card__checkbox:checked {
    background: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: 0 1px 4px rgba(20, 184, 166, 0.35);
}

[data-theme="dark"] .item-card__checkbox:checked::after {
    border-color: #0f172a;
}

/* Version panel dark mode */
[data-theme="dark"] .versions-container {
    background-color: var(--bg-tertiary);
}

[data-theme="dark"] .versions-label {
    color: var(--text-secondary);
}

[data-theme="dark"] .version-item {
    color: var(--text-primary);
}

[data-theme="dark"] .version-item.version-active {
    background-color: var(--bg-hover);
}

[data-theme="dark"] .version-item.version-inactive {
    background-color: var(--bg-secondary);
}

[data-theme="dark"] .version-item .version-icon {
    color: var(--text-secondary);
}

[data-theme="dark"] .item-card__version-toggle {
    background: var(--bg-secondary);
    border-left-color: rgba(148, 163, 184, 0.1);
}

/* Explorer/Compare version panel dark mode */
[data-theme="dark"] .explorer-versions-panel,
[data-theme="dark"] .compare-versions-panel {
    background-color: var(--bg-elevated);
    border: 1px solid rgba(148, 163, 184, 0.12);
    border-top: none;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .item-card-wrapper:has(.explorer-versions-panel[style*="display: block"]) .item-card,
[data-theme="dark"] .item-card-wrapper:has(.compare-versions-panel[style*="display: block"]) .item-card {
    border-bottom: none;
}

[data-theme="dark"] .version-item--selected {
    background-color: rgba(20, 184, 166, 0.12) !important;
    color: var(--accent-color-light);
}

[data-theme="dark"] .item-card__version--trigger:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .version-effdate {
    color: var(--text-tertiary);
}

[data-theme="dark"] .versions-table thead th {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border-color: rgba(148, 163, 184, 0.1);
}

[data-theme="dark"] .versions-table .version-item td {
    border-color: rgba(148, 163, 184, 0.06);
}

[data-theme="dark"] .attrs-table-scroll thead th {
    background-color: var(--bg-tertiary);
    box-shadow: inset 0 -1px 0 rgba(148, 163, 184, 0.1);
}

[data-theme="dark"] .attrs-search {
    background-color: var(--bg-primary);
    border-color: rgba(148, 163, 184, 0.2);
    color: var(--text-primary);
}

[data-theme="dark"] .attrs-search::placeholder {
    color: var(--text-tertiary);
}

[data-theme="dark"] .attrs-search:focus {
    border-color: var(--accent-color);
    background-color: var(--bg-primary);
}

[data-theme="dark"] .attrs-search + .attrs-search-count,
[data-theme="dark"] .input-group .input-group-text {
    background-color: var(--bg-secondary);
    border-color: rgba(148, 163, 184, 0.2);
    color: var(--text-secondary);
}