h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

/* ---------- App shell ---------- */

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-danger: #dc2626;
    --color-danger-dark: #b91c1c;
    --color-success: #16a34a;
    --color-text: #1f2937;
    --color-muted: #6b7280;
    --color-border: #e5e7eb;
    --color-surface: #ffffff;
    --color-bg: #f3f4f6;
    --color-backdrop: rgba(17, 24, 39, 0.5);
    --color-overlay: rgba(255, 255, 255, 0.7);
    --table-header-bg: #f9fafb;
    --badge-active-bg: #dcfce7;
    --badge-active-text: #166534;
    --badge-inactive-bg: #f3f4f6;
    --badge-inactive-text: #6b7280;
    --badge-warning-bg: #fef3c7;
    --badge-warning-text: #92400e;
    --toast-success-bg: #dcfce7;
    --toast-success-text: #166534;
    --toast-error-bg: #fee2e2;
    --toast-error-text: #991b1b;
    --toast-info-bg: #dbeafe;
    --toast-info-text: #1e40af;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --color-primary: #3b82f6;
        --color-primary-dark: #60a5fa;
        --color-danger: #f87171;
        --color-danger-dark: #fca5a5;
        --color-success: #4ade80;
        --color-text: #e5e7eb;
        --color-muted: #9ca3af;
        --color-border: #374151;
        --color-surface: #1f2937;
        --color-bg: #111827;
        --color-backdrop: rgba(0, 0, 0, 0.6);
        --color-overlay: rgba(17, 24, 39, 0.75);
        --table-header-bg: #1f2937;
        --badge-active-bg: #14532d;
        --badge-active-text: #bbf7d0;
        --badge-inactive-bg: #374151;
        --badge-inactive-text: #d1d5db;
        --badge-warning-bg: #451a03;
        --badge-warning-text: #fcd34d;
        --toast-success-bg: #14532d;
        --toast-success-text: #bbf7d0;
        --toast-error-bg: #7f1d1d;
        --toast-error-text: #fecaca;
        --toast-info-bg: #1e3a8a;
        --toast-info-text: #bfdbfe;
    }
}

:root[data-theme="dark"] {
    --color-primary: #3b82f6;
    --color-primary-dark: #60a5fa;
    --color-danger: #f87171;
    --color-danger-dark: #fca5a5;
    --color-success: #4ade80;
    --color-text: #e5e7eb;
    --color-muted: #9ca3af;
    --color-border: #374151;
    --color-surface: #1f2937;
    --color-bg: #111827;
    --color-backdrop: rgba(0, 0, 0, 0.6);
    --color-overlay: rgba(17, 24, 39, 0.75);
    --table-header-bg: #1f2937;
    --badge-active-bg: #14532d;
    --badge-active-text: #bbf7d0;
    --badge-inactive-bg: #374151;
    --badge-inactive-text: #d1d5db;
    --badge-warning-bg: #451a03;
    --badge-warning-text: #fcd34d;
    --toast-success-bg: #14532d;
    --toast-success-text: #bbf7d0;
    --toast-error-bg: #7f1d1d;
    --toast-error-text: #fecaca;
    --toast-info-bg: #1e3a8a;
    --toast-info-text: #bfdbfe;
}

body {
    background: var(--color-bg);
    color: var(--color-text);
    margin: 0;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 220px;
    flex-shrink: 0;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.2s ease;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.1rem;
    font-weight: 600;
    padding: 0 0.5rem;
    letter-spacing: -0.01em;
}

.sidebar-brand-icon {
    width: 1.5rem;
    height: 1.5rem;
    flex-shrink: 0;
}

.sidebar-backdrop {
    display: none;
}

.app-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.app-topbar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 1rem;
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface);
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.sidebar-toggle {
    display: none;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 0.4rem;
    width: 2.25rem;
    height: 2.25rem;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    margin-right: auto;
}

.app-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
    box-sizing: border-box;
}

main.app-container {
    padding-top: 1.5rem;
    padding-bottom: 3rem;
}

/* ---------- Nav menu (sidebar) ---------- */

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-menu a {
    color: var(--color-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.55rem 0.75rem;
    border-radius: 0.4rem;
    border-left: 3px solid transparent;
}

.nav-menu a:hover {
    color: var(--color-text);
    background: var(--color-bg);
}

.nav-menu a.active {
    color: var(--color-primary);
    background: var(--color-bg);
    border-left-color: var(--color-primary);
    font-weight: 600;
}

/* ---------- Theme toggle ---------- */

.theme-toggle {
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    width: 2.25rem;
    height: 2.25rem;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
}

.theme-toggle:hover {
    background: var(--color-bg);
}

h1 {
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
}

/* ---------- Dashboard ---------- */

.dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    padding: 1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.stat-card-label {
    color: var(--color-muted);
    font-size: 0.85rem;
    font-weight: 500;
}

.stat-card-value {
    font-size: 1.5rem;
    font-weight: 700;
}

/* ---------- Toolbar ---------- */

.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.results-count {
    color: var(--color-muted);
    font-size: 0.9rem;
}

/* ---------- Filters ---------- */

.filters-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.search-box {
    flex: 1 1 auto;
    min-width: 260px;
    max-width: 360px;
}

.filter-select {
    flex: 0 1 auto;
    min-width: 180px;
    max-width: 200px;
}

/* ---------- Pagination ---------- */

.pagination-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.pagination-info {
    color: var(--color-muted);
    font-size: 0.85rem;
}

.pagination {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.pagination-ellipsis {
    padding: 0 0.4rem;
    color: var(--color-muted);
}

.page-size-select {
    flex: 0 0 auto;
    width: auto;
    max-width: 140px;
}

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

.btn {
    border: 1px solid transparent;
    border-radius: 0.4rem;
    padding: 0.5rem 1rem;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.15s ease, opacity 0.15s ease;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-sm {
    padding: 0.3rem 0.65rem;
    font-size: 0.85rem;
    margin-right: 0.35rem;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-dark);
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-bg);
}

.btn-danger {
    background: var(--color-danger);
    color: #fff;
}

.btn-danger:hover:not(:disabled) {
    background: var(--color-danger-dark);
}

/* ---------- Form controls ---------- */

.form-control {
    width: 100%;
    padding: 0.5rem 0.7rem;
    border: 1px solid var(--color-border);
    border-radius: 0.4rem;
    font-size: 0.95rem;
    box-sizing: border-box;
    background: var(--color-surface);
    color: var(--color-text);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.3rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-check label {
    margin-bottom: 0;
}

.validation-message {
    display: block;
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

/* ---------- Table ---------- */

.table-container {
    position: relative;
}

.table-wrapper {
    overflow-x: auto;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
}

.product-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 520px;
}

.product-table th,
.product-table td {
    text-align: left;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
}

.product-table th {
    background: var(--table-header-bg);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-muted);
}

.product-table th.sortable {
    cursor: pointer;
    user-select: none;
}

.product-table th.sortable:hover {
    color: var(--color-text);
}

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

.actions-col {
    white-space: nowrap;
}

.empty-row {
    text-align: center;
    color: var(--color-muted);
    padding: 2rem 1rem;
}

.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
}

.badge-active {
    background: var(--badge-active-bg);
    color: var(--badge-active-text);
}

.badge-inactive {
    background: var(--badge-inactive-bg);
    color: var(--badge-inactive-text);
}

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

/* ---------- Low stock panel ---------- */

.low-stock-panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    padding: 1.25rem;
    margin-top: 1.5rem;
}

.low-stock-panel h2 {
    margin-top: 0;
    font-size: 1.1rem;
}

.low-stock-count {
    color: var(--color-muted);
    font-weight: 400;
    font-size: 0.95rem;
}

.low-stock-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 360px;
    overflow-y: auto;
}

.low-stock-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.75rem;
    border-radius: 0.4rem;
    background: var(--color-bg);
}

.low-stock-name {
    font-weight: 500;
}

/* ---------- Modal ---------- */

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: var(--color-backdrop);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    z-index: 1050;
}

.modal-panel {
    background: var(--color-surface);
    border-radius: 0.6rem;
    padding: 1.5rem;
    width: 100%;
    max-width: 420px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.modal-panel-sm {
    max-width: 380px;
}

.modal-panel h3 {
    margin-top: 0;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.6rem;
    margin-top: 1.25rem;
}

/* ---------- Loading overlay ---------- */

.loading-overlay {
    position: absolute;
    inset: 0;
    background: var(--color-overlay);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    color: var(--color-muted);
    font-size: 0.9rem;
    border-radius: 0.5rem;
    min-height: 120px;
}

.spinner {
    width: 28px;
    height: 28px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ---------- Toast ---------- */

.toast {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 0.4rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.toast-success {
    background: var(--toast-success-bg);
    color: var(--toast-success-text);
}

.toast-error {
    background: var(--toast-error-bg);
    color: var(--toast-error-text);
}

.toast-info {
    background: var(--toast-info-bg);
    color: var(--toast-info-text);
}

.toast-close {
    background: none;
    border: none;
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
    color: inherit;
}

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

@media (max-width: 900px) {
    .sidebar {
        position: fixed;
        inset: 0 auto 0 0;
        z-index: 1100;
        transform: translateX(-100%);
        box-shadow: 2px 0 12px rgba(0, 0, 0, 0.15);
    }

    .sidebar.sidebar-open {
        transform: translateX(0);
    }

    .sidebar-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.4);
        z-index: 1090;
    }

    .sidebar-toggle {
        display: inline-flex;
    }
}

@media (max-width: 640px) {
    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .filters-bar {
        flex-direction: column;
    }

    .search-box,
    .filter-select {
        min-width: 0;
        max-width: none;
    }

    .pagination-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .pagination {
        justify-content: center;
    }

    .page-size-select {
        max-width: none;
        width: 100%;
    }

    .product-table thead {
        display: none;
    }

    .product-table, .product-table tbody, .product-table tr, .product-table td {
        display: block;
        width: 100%;
        min-width: 0;
    }

    .product-table tr {
        border-bottom: 1px solid var(--color-border);
        padding: 0.5rem 0;
    }

    .product-table td {
        border-bottom: none;
        padding: 0.3rem 1rem;
        white-space: normal;
    }

    .product-table td::before {
        content: attr(data-label);
        display: inline-block;
        font-weight: 600;
        width: 90px;
        color: var(--color-muted);
        font-size: 0.78rem;
        text-transform: uppercase;
    }

    .actions-col {
        display: flex;
        gap: 0.5rem;
    }

    /* Keep scrolling, hide the scrollbar chrome itself on touch/mobile. */
    .low-stock-list,
    .table-wrapper {
        scrollbar-width: none;
        -ms-overflow-style: none;
    }

    .low-stock-list::-webkit-scrollbar,
    .table-wrapper::-webkit-scrollbar {
        display: none;
    }
}