:root {
    --primary-color: #165DFF;
    --primary-hover: #0F4CDD;
    --primary-soft: #edf4ff;
    --primary-ring: rgba(22, 93, 255, 0.16);
    --secondary-bg: #f5f7fb;
    --surface: #ffffff;
    --surface-soft: #f8fafc;
    --text-main: #172033;
    --text-muted: #667085;
    --border-color: #dde5f0;
    --success-color: #12b76a;
    --danger-color: #f04438;
    --warning-color: #f79009;
    --card-shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 10px 30px rgba(16, 24, 40, 0.06);
    --card-hover-shadow: 0 16px 42px rgba(22, 93, 255, 0.12);
    --font-family: Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

html {
    min-height: 100%;
}

body {
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(22, 93, 255, 0.08), transparent 34rem),
        linear-gradient(180deg, #f8fbff 0%, var(--secondary-bg) 42%, #eef3f9 100%) !important;
    color: var(--text-main) !important;
    font-family: var(--font-family) !important;
    letter-spacing: 0;
}

.container {
    max-width: 1180px;
}

.navbar {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: rgba(15, 23, 42, 0.94) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.16) !important;
    backdrop-filter: blur(14px);
    margin-bottom: 1.5rem !important;
    padding: 0.65rem 0 !important;
}

.navbar-brand {
    font-size: 1.05rem !important;
    letter-spacing: 0 !important;
}

.navbar-brand i {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: linear-gradient(135deg, #2f75ff, #65a5ff);
    color: #fff !important;
    font-size: 1.15rem !important;
}

.nav-link {
    border-radius: 8px !important;
    padding: 0.45rem 0.75rem !important;
    font-size: 0.92rem;
}

.nav-link.active,
.nav-link:hover {
    background: rgba(255, 255, 255, 0.12) !important;
    box-shadow: none !important;
    transform: none !important;
}

.user-dropdown-toggle,
.navbar .dropdown-toggle {
    border-radius: 8px !important;
}

.dropdown-menu {
    border: 1px solid var(--border-color) !important;
    border-radius: 8px !important;
    box-shadow: var(--card-shadow) !important;
}

.action-bar,
.filter-bar,
.link-card,
.stat-card,
.form-card,
.login-card,
.error-card,
.modal-content,
.card {
    border: 1px solid rgba(221, 229, 240, 0.92) !important;
    border-radius: 8px !important;
    box-shadow: var(--card-shadow) !important;
    background: rgba(255, 255, 255, 0.96) !important;
}

.link-card:hover,
.stat-card:hover,
.form-card:hover {
    transform: translateY(-2px) !important;
    box-shadow: var(--card-hover-shadow) !important;
}

.action-bar,
.filter-bar {
    padding: 1rem !important;
    margin-bottom: 1rem !important;
}

.card-header-custom,
.form-card-header,
.card-header {
    padding: 1rem 1.15rem !important;
    background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%) !important;
    border-bottom: 1px solid var(--border-color) !important;
    border-radius: 8px 8px 0 0 !important;
}

.card-body-custom,
.form-card-body,
.card-body {
    padding: 1.15rem !important;
}

.card-footer-custom,
.card-footer {
    padding: 0.85rem 1.15rem !important;
    background: var(--surface-soft) !important;
    border-top: 1px solid var(--border-color) !important;
    border-radius: 0 0 8px 8px !important;
}

.card-title-custom,
.card-header-custom h4,
.card-header-custom h5,
.form-card-title,
.card-header h4,
.card-header h5 {
    color: var(--text-main) !important;
    font-size: 1rem !important;
    font-weight: 700 !important;
}

.search-group-container,
.filter-actions,
.url-display-group,
.url-input-group,
.input-group {
    gap: 0.5rem;
}

.search-input-wrapper,
.url-display-group,
.url-input-group,
.input-group,
.form-control,
.form-select,
.form-control-custom,
.form-control-readonly,
.short-url-text {
    border-radius: 8px !important;
}

.search-input-wrapper,
.url-display-group,
.url-input-group {
    background: var(--surface-soft) !important;
    border: 1px solid var(--border-color) !important;
}

.search-input-wrapper:focus-within,
.url-display-group:focus-within,
.url-input-group:focus-within,
.form-control:focus,
.form-select:focus,
.form-control-custom:focus {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 4px var(--primary-ring) !important;
}

.form-control,
.form-select,
.form-control-custom {
    border: 1px solid var(--border-color) !important;
    background-color: #fff !important;
    color: var(--text-main) !important;
    min-height: 42px;
}

.form-label,
.data-label,
.stat-label,
.filter-title {
    color: var(--text-muted) !important;
    font-weight: 650 !important;
}

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

.btn,
.btn-action-sm,
.btn-action-custom,
.btn-copy-sm,
.btn-copy-action,
.search-btn,
.btn-create-new,
.btn-filter {
    border-radius: 8px !important;
    font-weight: 650 !important;
    transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease !important;
}

.btn:hover,
.btn-action-sm:hover,
.btn-action-custom:hover,
.btn-copy-sm:hover,
.btn-copy-action:hover,
.search-btn:hover,
.btn-create-new:hover,
.btn-filter:hover {
    transform: translateY(-1px);
}

.btn-primary,
.btn-primary-gradient,
.btn-create-new,
.btn-filter.active,
.btn-login {
    background: linear-gradient(135deg, var(--primary-color), #3d82ff) !important;
    border: 1px solid transparent !important;
    color: #fff !important;
    box-shadow: 0 8px 18px rgba(22, 93, 255, 0.18) !important;
}

.btn-outline-secondary,
.btn-outline-custom,
.btn-secondary-outline,
.btn-edit,
.btn-filter.inactive {
    background: #fff !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-main) !important;
}

.btn-stats,
.btn-copy-sm,
.btn-copy-action,
.search-btn {
    background: var(--primary-soft) !important;
    color: var(--primary-color) !important;
    border: 1px solid rgba(22, 93, 255, 0.12) !important;
}

.btn-delete {
    color: var(--danger-color) !important;
    background: #fff1f0 !important;
}

.alert {
    border: 1px solid transparent !important;
    border-radius: 8px !important;
    box-shadow: 0 8px 24px rgba(16, 24, 40, 0.08) !important;
}

.alert-success {
    background: #ecfdf3 !important;
    color: #027a48 !important;
    border-color: #abefc6 !important;
}

.alert-danger {
    background: #fef3f2 !important;
    color: #b42318 !important;
    border-color: #fecdca !important;
}

.alert-info {
    background: var(--primary-soft) !important;
    color: #1849a9 !important;
    border-color: #bfdbfe !important;
}

.stats-grid {
    background: var(--surface-soft);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.7rem !important;
}

.stat-value,
.data-value.large {
    color: var(--primary-color) !important;
}

.data-row {
    min-width: 0;
}

.data-value {
    min-width: 0;
}

.data-value-long {
    max-width: min(68%, 34rem);
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.link-detail-card .data-row-url {
    display: block !important;
}

.link-detail-card .data-row-url .data-label {
    display: block;
    margin-bottom: 0.5rem;
}

.link-detail-card .data-row-url .url-input-group {
    width: 100%;
}

.status-dot {
    box-shadow: 0 0 0 3px rgba(18, 183, 106, 0.12);
}

.bg-status-active,
.text-status-active {
    color: var(--success-color) !important;
}

.bg-status-expired,
.text-status-expired {
    color: var(--danger-color) !important;
}

.bg-status-disabled,
.text-status-disabled {
    color: #98a2b3 !important;
}

.badge-custom {
    border-radius: 999px !important;
}

.target-url-preview {
    color: var(--text-muted) !important;
}

.qr-popover {
    border: 1px solid var(--border-color) !important;
    border-radius: 8px !important;
    box-shadow: var(--card-shadow) !important;
}

.chart-wrapper {
    min-height: 240px;
}

.chart-empty {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 0.35rem;
    color: var(--text-muted);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.76), rgba(248, 250, 252, 0.86));
    border: 1px dashed #d5deeb;
    border-radius: 8px;
    pointer-events: none;
}

.chart-empty i {
    font-size: 1.5rem;
    color: #98a2b3;
}

.table-container {
    border-radius: 0 0 8px 8px !important;
}

.table-custom thead th {
    background: #f8fafc !important;
    color: var(--text-muted) !important;
    border-bottom: 1px solid var(--border-color) !important;
}

.table-custom tbody td {
    border-bottom: 1px solid #edf2f7 !important;
}

.table-custom tbody tr:hover {
    background: #f8fbff !important;
}

.empty-state {
    border: 1px dashed #c8d5e8 !important;
    border-radius: 8px !important;
    background: rgba(255, 255, 255, 0.72) !important;
    padding: 2.25rem !important;
}

.empty-icon,
.empty-state i {
    color: #98a2b3 !important;
}

body:has(.login-card) {
    background:
        radial-gradient(circle at 22% 20%, rgba(74, 136, 255, 0.18), transparent 24rem),
        linear-gradient(135deg, #0f172a 0%, #123a7c 52%, #165DFF 100%) !important;
}

.login-card {
    max-width: 390px !important;
    padding: 2rem !important;
}

.logo-icon {
    background: linear-gradient(135deg, var(--primary-color), #65a5ff) !important;
    -webkit-background-clip: text !important;
    background-clip: text !important;
}

.form-title {
    color: var(--text-main) !important;
}

.app-toast {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    z-index: 2000;
    max-width: min(360px, calc(100vw - 2rem));
    padding: 0.75rem 0.95rem;
    border-radius: 8px;
    background: #0f172a;
    color: #fff;
    box-shadow: 0 14px 40px rgba(15, 23, 42, 0.22);
    opacity: 0;
    transform: translateY(8px);
    pointer-events: none;
    transition: opacity 0.18s ease, transform 0.18s ease;
}

.app-toast.show {
    opacity: 1;
    transform: translateY(0);
}

.is-submitting {
    pointer-events: none;
    opacity: 0.78;
}

@media (max-width: 768px) {
    .navbar {
        margin-bottom: 1rem !important;
    }

    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .action-bar,
    .filter-bar {
        padding: 0.85rem !important;
    }

    .card-body-custom,
    .form-card-body,
    .card-body {
        padding: 1rem !important;
    }

    .search-group-container,
    .filter-bar,
    .card-header-custom,
    .card-footer-custom {
        gap: 0.75rem !important;
    }

    .table-container {
        overflow-x: auto;
    }

    .table-custom {
        min-width: 720px;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    body {
        background:
            radial-gradient(circle at top left, rgba(22, 93, 255, 0.06), transparent 20rem),
            linear-gradient(180deg, #f8fbff 0%, #f2f5fa 100%) !important;
    }

    .container {
        max-width: 100%;
        padding-left: 0.75rem !important;
        padding-right: 0.75rem !important;
    }

    .navbar {
        padding: 0.45rem 0 !important;
        margin-bottom: 0.75rem !important;
    }

    .navbar .container {
        gap: 0.35rem;
    }

    .navbar-brand {
        max-width: calc(100vw - 5.5rem);
        font-size: 0.95rem !important;
        gap: 0.45rem !important;
        white-space: nowrap;
        overflow: hidden;
    }

    .navbar-brand i {
        width: 28px;
        height: 28px;
        border-radius: 7px;
        font-size: 1rem !important;
        flex: 0 0 auto;
    }

    .navbar-brand span {
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .navbar-toggler {
        padding: 0.25rem 0.45rem !important;
        border-radius: 7px !important;
    }

    .navbar-toggler-icon {
        width: 1.15em;
        height: 1.15em;
    }

    .navbar-collapse {
        padding-top: 0.45rem;
    }

    .navbar-nav {
        gap: 0.25rem;
    }

    .nav-link,
    .user-dropdown-toggle,
    .navbar .dropdown-toggle {
        min-height: 34px;
        padding: 0.4rem 0.55rem !important;
        margin: 0 !important;
        font-size: 0.88rem !important;
        border-radius: 7px !important;
    }

    .user-avatar {
        width: 26px !important;
        height: 26px !important;
        font-size: 0.78rem !important;
    }

    .dropdown-menu {
        margin-top: 0.35rem !important;
        font-size: 0.88rem;
    }

    .main-container {
        padding-bottom: 1rem !important;
    }

    .row {
        --bs-gutter-x: 0.75rem;
        --bs-gutter-y: 0.75rem;
    }

    .g-4,
    .gy-4 {
        --bs-gutter-y: 0.75rem !important;
    }

    .g-4,
    .gx-4 {
        --bs-gutter-x: 0.75rem !important;
    }

    .mb-4 {
        margin-bottom: 0.85rem !important;
    }

    .pt-4 {
        padding-top: 0.85rem !important;
    }

    .action-bar,
    .filter-bar,
    .link-card,
    .stat-card,
    .form-card,
    .login-card,
    .error-card,
    .card {
        border-radius: 8px !important;
        box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 6px 18px rgba(16, 24, 40, 0.05) !important;
    }

    .action-bar,
    .filter-bar {
        padding: 0.65rem !important;
        margin-bottom: 0.75rem !important;
    }

    .card-header-custom,
    .form-card-header,
    .card-header {
        padding: 0.7rem 0.8rem !important;
        gap: 0.5rem !important;
    }

    .card-body-custom,
    .form-card-body,
    .card-body {
        padding: 0.8rem !important;
    }

    .card-footer-custom,
    .card-footer {
        padding: 0.65rem 0.8rem !important;
    }

    .card-title-custom,
    .card-header-custom h4,
    .card-header-custom h5,
    .form-card-title,
    .card-header h4,
    .card-header h5 {
        font-size: 0.95rem !important;
        line-height: 1.25 !important;
    }

    .card-header .fs-3,
    .form-card-header .fs-3 {
        font-size: 1.25rem !important;
    }

    .search-group-container,
    .filter-actions,
    .action-footer,
    .card-footer-custom,
    .card-header {
        gap: 0.5rem !important;
    }

    .search-group-container form {
        gap: 0.5rem !important;
    }

    .search-input-wrapper input,
    .short-url-text,
    .form-control,
    .form-select,
    .form-control-custom,
    .form-control-readonly,
    .code-input {
        min-height: 38px !important;
        padding: 0.55rem 0.7rem !important;
        font-size: 0.9rem !important;
        line-height: 1.35 !important;
    }

    .form-label,
    .data-label,
    .stat-label,
    .filter-title,
    .form-text,
    .status-indicator,
    .target-url-preview {
        font-size: 0.8rem !important;
        line-height: 1.35 !important;
    }

    .form-text,
    .status-indicator {
        margin-top: 0.35rem !important;
        gap: 0.35rem !important;
    }

    .btn,
    .btn-action-sm,
    .btn-action-custom,
    .btn-copy-sm,
    .btn-copy-action,
    .search-btn,
    .btn-create-new,
    .btn-filter {
        min-height: 36px;
        padding: 0.48rem 0.7rem !important;
        font-size: 0.86rem !important;
        gap: 0.35rem !important;
        border-radius: 7px !important;
        line-height: 1.2 !important;
    }

    .btn-sm {
        min-height: 32px;
        padding: 0.38rem 0.55rem !important;
        font-size: 0.8rem !important;
    }

    .search-btn {
        padding-left: 0.65rem !important;
        padding-right: 0.65rem !important;
    }

    .btn:hover,
    .btn-action-sm:hover,
    .btn-action-custom:hover,
    .btn-copy-sm:hover,
    .btn-copy-action:hover,
    .search-btn:hover,
    .btn-create-new:hover,
    .btn-filter:hover,
    .link-card:hover,
    .stat-card:hover,
    .form-card:hover {
        transform: none !important;
    }

    .alert {
        padding: 0.55rem 0.7rem !important;
        margin-bottom: 0.75rem !important;
        gap: 0.45rem !important;
        font-size: 0.84rem !important;
    }

    .stats-grid {
        gap: 0.5rem !important;
        padding: 0.55rem !important;
    }

    .stat-value,
    .data-value,
    .data-value.large {
        font-size: 0.95rem !important;
        line-height: 1.25 !important;
    }

    .stat-card .data-row {
        display: flex !important;
        flex-direction: column;
        align-items: flex-start !important;
        justify-content: flex-start !important;
        gap: 0.25rem;
        margin-bottom: 0.65rem !important;
    }

    .stat-card .data-value {
        width: 100%;
        max-width: 100% !important;
        text-align: left !important;
        white-space: normal !important;
        overflow: visible !important;
        text-overflow: clip !important;
        overflow-wrap: anywhere;
        word-break: break-word;
    }

    .stat-card .data-value .badge-custom {
        display: inline-flex;
        width: fit-content;
    }

    .link-detail-card .info-grid {
        gap: 0.55rem !important;
    }

    .link-detail-card .info-section h6 {
        margin-bottom: 0.45rem !important;
        font-size: 0.8rem !important;
    }

    .link-detail-card .data-row,
    .link-detail-card .data-row-url {
        display: flex !important;
        flex-direction: row !important;
        align-items: flex-start !important;
        justify-content: space-between !important;
        gap: 0.65rem !important;
        margin-bottom: 0.5rem !important;
    }

    .link-detail-card .data-label {
        flex: 0 0 5.4rem;
        padding-top: 0.08rem;
        white-space: nowrap;
    }

    .link-detail-card .data-value,
    .link-detail-card .data-value-long,
    .link-detail-card .url-input-group {
        flex: 1 1 auto;
        width: auto;
        min-width: 0;
        max-width: none !important;
        text-align: right !important;
    }

    .link-detail-card .data-value-long {
        overflow-wrap: anywhere;
        word-break: break-word;
    }

    .link-detail-card .url-input-group {
        padding: 0.25rem !important;
    }

    .link-detail-card .form-control-readonly {
        min-height: 32px !important;
        padding: 0.35rem 0.45rem !important;
        text-align: right;
    }

    .link-detail-card .btn-copy-action {
        min-height: 32px;
        padding: 0.35rem 0.45rem !important;
        flex: 0 0 auto;
    }

    .target-url-preview {
        margin-bottom: 0.75rem !important;
    }

    .url-display-group,
    .url-input-group,
    .input-group,
    .custom-code-wrapper {
        min-height: 38px;
    }

    .code-prefix {
        padding: 0.5rem 0.7rem !important;
        font-size: 0.78rem !important;
        line-height: 1.3 !important;
        max-width: 100%;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .action-footer,
    .card-body form > .d-flex.justify-content-end {
        flex-direction: column-reverse !important;
        align-items: stretch !important;
        gap: 0.5rem !important;
    }

    .action-footer .btn,
    .card-body form > .d-flex.justify-content-end .btn {
        width: 100%;
        justify-content: center;
    }

    .toggle-container {
        padding: 0.55rem 0.7rem !important;
        margin-top: 0.35rem !important;
        width: 100% !important;
    }

    .toggle-label-text {
        font-size: 0.84rem !important;
    }

    .toggle-switch {
        width: 46px !important;
        height: 24px !important;
    }

    .toggle-slider:before {
        width: 18px !important;
        height: 18px !important;
        left: 3px !important;
        bottom: 3px !important;
    }

    .toggle-switch input:checked + .toggle-slider:before {
        transform: translateX(22px) !important;
    }

    .info-grid {
        grid-template-columns: 1fr !important;
        gap: 0.75rem !important;
    }

    .filter-bar {
        flex-direction: column !important;
        align-items: stretch !important;
    }

    .filter-actions {
        display: grid !important;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        width: 100%;
    }

    .btn-filter {
        width: 100%;
        justify-content: center;
    }

    .chart-wrapper {
        min-height: 180px !important;
    }

    .table-container {
        border-radius: 0 0 8px 8px !important;
    }

    .table-custom {
        min-width: 640px !important;
    }

    .table-custom thead th,
    .table-custom tbody td {
        padding: 0.55rem 0.65rem !important;
        font-size: 0.78rem !important;
        white-space: nowrap;
    }

    .empty-state {
        padding: 1.25rem 0.85rem !important;
    }

    .empty-state h4 {
        font-size: 1rem !important;
    }

    .empty-state p {
        font-size: 0.84rem !important;
        margin-bottom: 0.75rem !important;
    }

    .empty-icon,
    .empty-state i {
        font-size: 2rem !important;
        margin-bottom: 0.5rem !important;
    }

    body:has(.login-card) {
        align-items: stretch !important;
        padding: 0.75rem !important;
    }

    .login-card {
        max-width: none !important;
        padding: 1.15rem !important;
        margin: auto 0 !important;
    }

    .header-section {
        margin-bottom: 1.2rem !important;
    }

    .logo-icon {
        font-size: 2.1rem !important;
        margin-bottom: 0.4rem !important;
    }

    .form-title {
        font-size: 1.35rem !important;
    }

    .form-subtitle,
    .footer-text {
        font-size: 0.78rem !important;
    }

    .custom-input-group {
        height: 44px !important;
        margin-bottom: 0.9rem !important;
    }

    .form-control-custom {
        padding-left: 2.4rem !important;
        padding-right: 2.4rem !important;
    }

    .floating-label {
        left: 2.35rem !important;
        font-size: 0.9rem !important;
    }

    .input-icon-left,
    .password-toggle-btn {
        font-size: 1rem !important;
    }

    .btn-login {
        height: 42px !important;
    }

    .modal-dialog {
        margin: 0.75rem !important;
    }

    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 0.75rem !important;
    }

    .app-toast {
        left: 0.75rem;
        right: 0.75rem;
        bottom: 0.75rem;
        max-width: none;
        padding: 0.6rem 0.75rem;
        font-size: 0.84rem;
    }
}

@media (max-width: 420px) {
    html {
        font-size: 14px;
    }

    .container {
        padding-left: 0.6rem !important;
        padding-right: 0.6rem !important;
    }

    .navbar-brand {
        max-width: calc(100vw - 5rem);
    }

    .search-group-container {
        flex-direction: column !important;
        align-items: stretch !important;
    }

    .search-group-container form {
        width: 100%;
    }

    .btn-create-new {
        width: 100%;
        justify-content: center;
        margin-top: 0 !important;
    }

    .card-footer-custom,
    .link-card .d-flex.gap-2 {
        flex-direction: column !important;
        align-items: stretch !important;
    }

    .card-footer-custom .btn,
    .link-card .d-flex.gap-2 .btn,
    .btn-action-sm {
        width: 100%;
        justify-content: center;
    }

    .filter-actions {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr !important;
    }
}

/* Shared interaction and responsive refinements */
.logout-form {
    margin: 0;
}

.qr-trigger {
    appearance: none;
    border: 0;
    background: transparent;
    color: inherit;
    padding: 0.35rem;
    line-height: 1;
}

.qr-trigger:focus-visible .qr-popover {
    display: block;
    opacity: 1;
    visibility: visible;
}

.pagination-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin: 1.25rem 0 0;
    padding: 0.75rem;
}

.pagination-status {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-align: center;
}

.error-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: linear-gradient(180deg, #f8fbff, #f2f5fa);
}

.error-page .error-card {
    width: min(100%, 480px);
    padding: 2rem;
    text-align: center;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
}

.error-page .error-code {
    color: var(--primary-color);
    font-size: clamp(3.5rem, 14vw, 6rem);
    font-weight: 700;
    line-height: 1;
    margin-bottom: 1rem;
}

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
    outline: 3px solid rgba(22, 93, 255, 0.35) !important;
    outline-offset: 2px;
}

@media (max-width: 768px) {
    .nav-link,
    .user-dropdown-toggle,
    .navbar .dropdown-toggle,
    .navbar-toggler,
    .btn,
    .btn-action-sm,
    .btn-action-custom,
    .btn-copy-sm,
    .btn-copy-action,
    .search-btn,
    .btn-create-new,
    .btn-filter,
    .qr-trigger {
        min-height: 44px !important;
    }

    .table-container {
        overflow: visible !important;
        padding: 0.65rem;
    }

    .table-custom {
        display: block;
        min-width: 0 !important;
    }

    .table-custom thead {
        display: none;
    }

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

    .table-custom tbody tr {
        margin-bottom: 0.75rem;
        padding: 0.4rem 0.75rem;
        border: 1px solid var(--border-color);
        border-radius: 8px;
        background: #fff;
    }

    .table-custom tbody tr:last-child {
        margin-bottom: 0;
    }

    .table-custom tbody td {
        display: grid;
        grid-template-columns: 6.5rem minmax(0, 1fr);
        gap: 0.75rem;
        padding: 0.55rem 0 !important;
        font-size: 0.84rem !important;
        white-space: normal !important;
        overflow-wrap: anywhere;
    }

    .table-custom tbody td::before {
        content: attr(data-label);
        color: var(--text-muted);
        font-weight: 600;
    }

    .table-custom tbody td[colspan] {
        display: block;
    }

    .table-custom tbody td[colspan]::before {
        display: none;
    }

    .table-custom .text-truncate {
        max-width: 100% !important;
        white-space: normal;
    }

    .pagination-wrap {
        gap: 0.5rem;
        padding: 0.75rem 0;
    }

    .pagination-wrap .btn {
        flex: 1 1 0;
    }
}