html {
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    touch-action: manipulation;
}

body {
    overflow-x: hidden;
}

.mobile-only { display: none; }
.desktop-only { display: block; }

.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #ffffff;
    border-top: 1px solid #e2e8f0;
    z-index: 1002;
    padding: 0;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.08);
    pointer-events: auto;
}

.mobile-bottom-nav-inner {
    display: flex;
    justify-content: space-around;
    align-items: stretch;
    height: 56px;
    max-width: 500px;
    margin: 0 auto;
}

.mobile-bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    text-decoration: none;
    color: #64748b;
    font-size: 0.625rem;
    gap: 2px;
    padding: 4px 0;
    transition: color 0.2s;
    border: none;
    background: none;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.mobile-bottom-nav-item i {
    font-size: 1.25rem;
}

.mobile-bottom-nav-item.active,
.mobile-bottom-nav-item:hover {
    color: #2563eb;
}

.mobile-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1001;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-sidebar-overlay.visible {
    display: block;
    opacity: 1;
}

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

    .mobile-bottom-nav {
        display: block;
    }

    body {
        padding-bottom: 64px;
    }

    .dashboard {
        flex-direction: column;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: 280px;
        height: 100vh;
        height: 100dvh;
        z-index: 1000;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        box-shadow: none;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
    }

    .sidebar.mobile-open {
        transform: translateX(0);
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
    }

    body.mobile-nav-open {
        overflow: hidden !important;
        position: fixed !important;
        width: 100% !important;
        height: 100% !important;
    }

    .main-content {
        width: 100%;
        min-height: 100vh;
    }

    .hamburger-menu {
        display: flex !important;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
    }

    .top-bar {
        padding: 0.5rem 1rem;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .top-bar-left {
        flex: 1;
        min-width: 0;
    }

    .page-title {
        font-size: 1.125rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .top-bar-right,
    .top-bar-actions {
        flex-shrink: 0;
    }

    .content {
        padding: 1rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.75rem;
    }

    .stat-card {
        padding: 1rem;
    }

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

    .stat-label {
        font-size: 0.75rem;
    }

    .dashboard-grid,
    .widget-grid,
    .cards-grid,
    .progress-overview-grid,
    .quick-actions-grid {
        grid-template-columns: 1fr 1fr !important;
        gap: 0.75rem;
    }

    .content-section {
        border-radius: 8px;
        margin-bottom: 1rem;
    }

    .section-header {
        padding: 1rem;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .section-title {
        font-size: 1rem;
    }

    .section-content {
        padding: 1rem;
    }

    table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        max-width: 100%;
    }

    thead {
        display: block;
    }

    tbody {
        display: block;
    }

    .table-responsive-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 -1rem;
        padding: 0 1rem;
    }

    .table-as-cards thead {
        display: none !important;
    }

    .table-as-cards tbody {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
    }

    .table-as-cards tr {
        display: flex;
        flex-direction: column;
        background: #fff;
        border: 1px solid #e2e8f0;
        border-radius: 8px;
        padding: 0.75rem;
    }

    .table-as-cards td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.375rem 0;
        border: none;
        border-bottom: 1px solid #f1f5f9;
        font-size: 0.875rem;
    }

    .table-as-cards td:last-child {
        border-bottom: none;
    }

    .table-as-cards td::before {
        content: attr(data-label);
        font-weight: 600;
        color: #64748b;
        font-size: 0.75rem;
        text-transform: uppercase;
        flex-shrink: 0;
        margin-right: 0.5rem;
    }

    .form-control,
    .form-select,
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    input[type="date"],
    input[type="search"],
    textarea,
    select {
        font-size: 16px !important;
        min-height: 44px;
        padding: 0.5rem 0.75rem;
        width: 100%;
        box-sizing: border-box;
    }

    .form-group,
    .mb-3 {
        margin-bottom: 1rem;
    }

    .form-label,
    label {
        font-size: 0.875rem;
        margin-bottom: 0.375rem;
    }

    .form-row,
    .row {
        flex-direction: column;
    }

    .form-row > .col,
    .form-row > [class*="col-"],
    .row > .col,
    .row > [class*="col-"] {
        max-width: 100%;
        flex: 0 0 100%;
        padding-left: 0;
        padding-right: 0;
    }

    .btn,
    button,
    .btn-primary,
    .btn-secondary,
    .btn-success,
    .btn-danger,
    .btn-warning,
    .btn-outline-primary,
    .btn-outline-secondary {
        min-height: 44px;
        min-width: 44px;
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
        -webkit-tap-highlight-color: transparent;
    }

    .btn-group {
        flex-wrap: wrap;
        gap: 0.25rem;
    }

    .btn-group .btn {
        flex: 1;
        min-width: 0;
    }

    .chart-container,
    canvas {
        max-width: 100%;
        height: auto !important;
        min-height: 200px;
    }

    .modal-dialog {
        margin: 0 !important;
        max-width: 100% !important;
        min-height: 100vh;
        display: flex;
        align-items: stretch;
    }

    .modal-content {
        border-radius: 0;
        min-height: 100vh;
        max-height: 100vh;
        overflow-y: auto;
        border: none;
    }

    .modal-header {
        position: sticky;
        top: 0;
        z-index: 10;
        background: #fff;
        border-bottom: 1px solid #e2e8f0;
    }

    .modal-footer {
        position: sticky;
        bottom: 0;
        z-index: 10;
        background: #fff;
        border-top: 1px solid #e2e8f0;
        padding: 0.75rem;
    }

    .modal-footer .btn {
        flex: 1;
    }

    .modal-body {
        padding: 1rem;
    }

    .modal-title {
        font-size: 1.125rem;
    }

    .nav-tabs {
        overflow-x: auto;
        overflow-y: hidden;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }

    .nav-tabs::-webkit-scrollbar {
        display: none;
    }

    .nav-tabs .nav-link,
    .nav-tabs .nav-item {
        white-space: nowrap;
        flex-shrink: 0;
        min-height: 44px;
        padding: 0.5rem 1rem;
        font-size: 0.8125rem;
    }

    .badge {
        font-size: 0.6875rem;
    }

    .alert {
        font-size: 0.875rem;
        padding: 0.75rem;
        border-radius: 8px;
    }

    .card {
        margin-bottom: 0.75rem;
        border-radius: 8px;
    }

    .card-body {
        padding: 1rem;
    }

    .card-header {
        padding: 0.75rem 1rem;
    }

    .card-title {
        font-size: 1rem;
    }

    .dropdown-menu {
        min-width: 200px;
        max-width: calc(100vw - 2rem);
    }

    .dropdown-item {
        min-height: 44px;
        display: flex;
        align-items: center;
        padding: 0.5rem 1rem;
    }

    .pagination {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.25rem;
    }

    .pagination .page-link {
        min-width: 44px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .toast-container {
        bottom: 70px !important;
        left: 1rem !important;
        right: 1rem !important;
    }

    .dashboard-card {
        min-height: auto;
    }

    .dashboard-card-content {
        padding: 0.75rem;
    }

    .dashboard-card-header {
        padding: 0.75rem;
    }

    .dashboard-card-title {
        font-size: 0.875rem;
    }

    .task-overview-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }

    .task-overview-card {
        padding: 1rem;
    }

    .task-count {
        font-size: 1.5rem;
    }

    .task-label {
        font-size: 0.75rem;
    }

    .task-category-grid {
        grid-template-columns: 1fr;
    }

    .task-category-card:not(:last-child) {
        border-right: none;
        border-bottom: 1px solid var(--border-color, #e2e8f0);
    }

    .tile-selector-grid {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .profile-header {
        flex-direction: column;
        padding: 1rem;
    }

    .profile-info {
        flex-direction: column;
        text-align: center;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    h3 {
        font-size: 1.125rem;
    }

    .d-flex {
        flex-wrap: wrap;
    }

    .gap-3 {
        gap: 0.5rem !important;
    }

    .gap-4 {
        gap: 0.75rem !important;
    }

    .p-4 {
        padding: 1rem !important;
    }

    .p-5 {
        padding: 1.5rem !important;
    }

    .search-results {
        position: fixed;
        top: auto;
        left: 1rem;
        right: 1rem;
        max-height: 50vh;
    }

    .global-search-container {
        margin-bottom: 0.5rem;
    }

    .global-search-input {
        min-height: 44px;
    }

    .improvement-detail-grid,
    .detail-grid {
        grid-template-columns: 1fr !important;
    }

    .activity-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .shared-sidebar-topbar .hamburger-btn {
        display: flex !important;
        width: 44px;
        height: 44px;
        align-items: center;
        justify-content: center;
    }

    .checklist-item,
    .routine-item,
    .standard-work-item {
        padding: 0.75rem;
    }

    .filter-bar,
    .filter-controls,
    .toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }

    .filter-bar .btn,
    .filter-controls .btn,
    .toolbar .btn {
        width: 100%;
    }

    .popover {
        max-width: calc(100vw - 2rem);
    }

    .tooltip-inner {
        max-width: calc(100vw - 2rem);
    }

    ::-webkit-scrollbar {
        width: 4px;
        height: 4px;
    }

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

    .notification-panel,
    .notification-dropdown {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 60px !important;
        width: 100% !important;
        max-width: 100% !important;
        max-height: none !important;
        border-radius: 0 !important;
        z-index: 1050 !important;

    }

    .sidebar-search {
        padding: 0.5rem 1rem;
    }

    .sidebar-search-input {
        min-height: 44px;
    }

    #activity-feed-content > div:first-child {
        padding: 0.75rem 1rem !important;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    #activity-feed-content > div:first-child h1 {
        font-size: 1.15rem;
    }

    #activity-feed-content .feed-filter {
        font-size: 0.75rem;
        padding: 0.35rem 0.65rem;
    }

    #activity-feed-content .feed-photo {
        height: 140px;
    }

    #activity-feed-content .feed-card-header {
        padding: 0.75rem 1rem 0.5rem;
    }

    #activity-feed-content .feed-card-body {
        padding: 0 1rem 0.5rem;
    }

    #activity-feed-content .feed-card-footer {
        padding: 0.5rem 1rem;
    }

    #coordination-status-content > div:first-child {
        padding: 0.75rem 1rem !important;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    #coordination-status-content > div:first-child h1 {
        font-size: 1.15rem;
    }

    #coordination-status-content #coord-summary-cards {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.75rem;
    }

    #coordination-status-content .coord-tab {
        font-size: 0.75rem;
        padding: 0.4rem 0.75rem;
        min-height: 36px;
    }

    #coordination-status-content #coord-table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    #coordination-status-content #coord-table-container table {
        min-width: 600px;
    }

    #coord-assign-dropdown {
        left: 1rem !important;
        right: 1rem !important;
        max-width: calc(100vw - 2rem) !important;
    }

    #five-s-management-content .container-fluid {
        padding: 1rem !important;
    }

    #five-s-management-content .d-flex.justify-content-between {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start !important;
    }

    #five-s-management-content .d-flex.justify-content-between > div:last-child {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
        width: 100%;
    }

    #five-s-management-content .d-flex.justify-content-between > div:last-child .btn {
        flex: 1;
        min-width: 0;
        font-size: 0.8rem;
        padding: 0.4rem 0.5rem;
        white-space: nowrap;
    }

    #safety-system-content .container-fluid {
        padding: 1rem !important;
    }

    #safety-system-content .d-flex.justify-content-between {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start !important;
    }

    #safety-system-content .d-flex.justify-content-between .btn-danger {
        width: 100%;
    }

    #training-matrix-content .section-header {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    #scorecard-content .scorecard-page-header {
        flex-direction: column;
        padding: 0.75rem !important;
        gap: 0.5rem;
    }

    #scorecard-content .scorecard-page-title {
        font-size: 1.1rem;
    }

    #scorecard-content .scorecard-page-subtitle {
        font-size: 0.75rem;
    }

    #scorecard-content .scorecard-page-summary {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
        padding: 0 0.25rem;
    }

    #scorecard-content .scorecard-page-summary .summary-card {
        padding: 0.6rem;
    }

    #scorecard-content .scorecard-page-summary .summary-value {
        font-size: 1.1rem;
    }

    #scorecard-content .scorecard-page-summary .summary-label {
        font-size: 0.65rem;
    }

    #scorecard-content .scorecard-year-filters {
        padding: 0.5rem 0;
        gap: 0.25rem;
        flex-wrap: wrap;
    }

    #scorecard-content .scorecard-year-tab {
        padding: 0.3rem 0.6rem;
        font-size: 0.72rem;
    }

    #scorecard-content .scorecard-page-table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 -0.5rem;
        padding: 0 0.5rem;
    }

    #scorecard-content .scorecard-page-table {
        font-size: 0.78rem;
        min-width: 500px;
    }

    #scorecard-content .scorecard-page-table thead th {
        padding: 0.5rem 0.4rem;
        font-size: 0.68rem;
    }

    #scorecard-content .scorecard-page-table tbody td {
        padding: 0.4rem 0.35rem;
    }

    #scorecard-content .sc-group-header td {
        padding: 0.5rem 0.5rem !important;
    }

    #scorecard-content .sc-obj-title {
        font-size: 0.82rem;
    }

    #scorecard-content .sc-progress-bar {
        min-width: 80px;
    }

    #scorecard-content .sc-monthly-icon {
        display: none;
    }

    #scorecard-content .hoshin-objectives-section {
        padding: 0.5rem;
    }

    #master-plan-content .master-plan-header {
        flex-direction: column;
        padding: 1rem !important;
        gap: 0.75rem;
    }

    #master-plan-content .master-plan-title {
        font-size: 1.25rem;
    }

    #tasks-content > div {
        padding: 1rem !important;
    }

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

    .improvements-header {
        flex-direction: column;
        align-items: flex-start !important;
    }

    .improvements-title {
        font-size: 1.5rem !important;
    }
}

@media (max-width: 375px) {
    .stats-grid {
        grid-template-columns: 1fr !important;
    }

    .dashboard-grid,
    .widget-grid,
    .cards-grid,
    .quick-actions-grid {
        grid-template-columns: 1fr !important;
    }

    .task-overview-grid {
        grid-template-columns: 1fr;
    }

    .content {
        padding: 0.75rem;
    }

    .top-bar {
        padding: 0.5rem 0.75rem;
    }

    .page-title {
        font-size: 1rem;
    }

    .stat-card {
        padding: 0.75rem;
    }

    .stat-value {
        font-size: 1.25rem;
    }

    .section-header {
        padding: 0.75rem;
    }

    .section-content {
        padding: 0.75rem;
    }

    .modal-body {
        padding: 0.75rem;
    }

    .btn {
        font-size: 0.8125rem;
    }

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

    #coordination-status-content #coord-summary-cards {
        grid-template-columns: 1fr !important;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .dashboard-grid,
    .widget-grid,
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .content {
        padding: 1.5rem;
    }

    .sidebar {
        width: 240px;
    }

    .modal-dialog {
        margin: 1rem;
        max-width: calc(100% - 2rem);
    }

    .quick-actions-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .tile-selector-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (hover: none) and (pointer: coarse) {
    a,
    button,
    .btn,
    .nav-link,
    .dropdown-item,
    .list-group-item,
    .nav-item,
    .clickable {
        -webkit-tap-highlight-color: rgba(37, 99, 235, 0.1);
    }

    *:focus {
        outline: 2px solid #2563eb;
        outline-offset: 2px;
    }
}

@supports (padding-bottom: env(safe-area-inset-bottom)) {
    .mobile-bottom-nav {
        padding-bottom: env(safe-area-inset-bottom);
    }

    body {
        padding-bottom: calc(64px + env(safe-area-inset-bottom));
    }
}