/* ========================================
   MOBILE OPTIMIZATION AND RESPONSIVE DESIGN
   ======================================== */

/* Mobile-first approach */
@media (max-width: 768px) {
    /* Typography adjustments */
    :root {
        --text-6xl: 2.5rem;
        --text-5xl: 2rem;
        --text-4xl: 1.75rem;
        --text-3xl: 1.5rem;
        --text-2xl: 1.25rem;
        --text-xl: 1.125rem;
        --text-lg: 1rem;
        --text-base: 0.875rem;
        --text-sm: 0.75rem;
        --text-xs: 0.625rem;
    }

    /* Container adjustments */
    .container-fluid {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }

    /* Hero section mobile */
    .hero-section {
        min-height: 100vh;
        padding: var(--space-8) var(--space-4);
    }

    .hero-title {
        font-size: var(--text-4xl);
        line-height: 1.2;
        margin-bottom: var(--space-4);
    }

    .hero-subtitle {
        font-size: var(--text-lg);
        margin-bottom: var(--space-6);
    }

    .hero-actions {
        flex-direction: column;
        gap: var(--space-3);
    }

    .hero-actions .btn {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }

    /* Stats grid mobile */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }

    .stat-card {
        padding: var(--space-4);
    }

    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: var(--text-xl);
    }

    .stat-value {
        font-size: var(--text-2xl);
    }

    /* Feature grid mobile */
    .feature-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }

    .feature-card {
        padding: var(--space-4);
    }

    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: var(--text-2xl);
    }

    /* Form mobile optimizations */
    .form-container {
        margin: var(--space-4);
        padding: var(--space-4);
    }

    .form-header {
        padding: var(--space-4);
    }

    .form-body {
        padding: var(--space-4);
    }

    .step-indicator {
        flex-direction: column;
        gap: var(--space-2);
    }

    .step {
        margin: 0;
        justify-content: center;
    }

    .department-selector {
        grid-template-columns: 1fr;
    }

    .department-option {
        padding: var(--space-3);
    }

    .department-icon {
        width: 40px;
        height: 40px;
        font-size: var(--text-lg);
    }

    /* Dashboard mobile */
    .dashboard-header {
        padding: var(--space-4);
    }

    .dashboard-header h1 {
        font-size: var(--text-2xl);
    }

    .chart-container {
        padding: var(--space-4);
    }

    .chart-header {
        flex-direction: column;
        gap: var(--space-2);
        align-items: start;
    }

    .chart-actions {
        flex-direction: column;
        width: 100%;
    }

    .chart-actions .btn {
        width: 100%;
    }

    /* Table mobile */
    .table-responsive {
        font-size: var(--text-sm);
    }

    .table th,
    .table td {
        padding: var(--space-2);
    }

    /* Question cards mobile */
    .question-card {
        padding: var(--space-4);
    }

    .question-header {
        flex-direction: column;
        align-items: start;
        gap: var(--space-2);
    }

    .question-meta {
        flex-direction: column;
        gap: var(--space-2);
        align-items: start;
    }

    .question-actions {
        flex-direction: column;
        width: 100%;
    }

    .question-actions .btn {
        width: 100%;
    }

    /* Filter section mobile */
    .filter-section {
        padding: var(--space-4);
    }

    .filter-row {
        flex-direction: column;
        gap: var(--space-3);
    }

    .filter-group {
        min-width: 100%;
    }

    /* Modal mobile */
    .modal-dialog {
        margin: var(--space-4);
        max-width: calc(100% - 2rem);
    }

    .modal-content {
        border-radius: var(--radius-xl);
    }

    .modal-header {
        padding: var(--space-4);
    }

    .modal-body {
        padding: var(--space-4);
    }

    .modal-footer {
        padding: var(--space-4);
        flex-direction: column;
        gap: var(--space-2);
    }

    .modal-footer .btn {
        width: 100%;
    }

    /* Navigation mobile */
    .navbar-toggler {
        border: none;
        padding: var(--space-2);
    }

    .navbar-collapse {
        margin-top: var(--space-4);
    }

    .navbar-nav {
        gap: var(--space-2);
    }

    .navbar-nav .nav-link {
        padding: var(--space-3);
        border-radius: var(--radius-lg);
    }

    /* Button mobile */
    .btn {
        padding: var(--space-3) var(--space-4);
        font-size: var(--text-sm);
    }

    .btn-lg {
        padding: var(--space-4) var(--space-6);
        font-size: var(--text-base);
    }

    .btn-sm {
        padding: var(--space-2) var(--space-3);
        font-size: var(--text-xs);
    }

    /* Form controls mobile */
    .form-control,
    .form-select {
        padding: var(--space-3);
        font-size: var(--text-base);
    }

    .form-floating .form-control {
        height: calc(3rem + 2px);
        padding: 1rem 0.75rem;
    }

    .form-floating label {
        padding: 1rem 0.75rem;
    }

    /* Card mobile */
    .card {
        border-radius: var(--radius-xl);
    }

    .card-header {
        padding: var(--space-4);
    }

    .card-body {
        padding: var(--space-4);
    }

    .card-footer {
        padding: var(--space-4);
    }

    /* Alert mobile */
    .alert {
        padding: var(--space-3);
        font-size: var(--text-sm);
    }

    /* Badge mobile */
    .badge {
        font-size: var(--text-xs);
        padding: var(--space-1) var(--space-2);
    }

    /* Progress mobile */
    .progress {
        height: 8px;
    }

    .progress-bar {
        font-size: var(--text-xs);
    }

    /* Tooltip mobile */
    .tooltip {
        font-size: var(--text-xs);
    }

    /* Toast mobile */
    .toast {
        margin: var(--space-2);
        max-width: calc(100% - 1rem);
    }

    /* Utility classes mobile */
    .d-none-mobile {
        display: none !important;
    }

    .d-block-mobile {
        display: block !important;
    }

    .d-flex-mobile {
        display: flex !important;
    }

    .text-center-mobile {
        text-align: center !important;
    }

    .text-right-mobile {
        text-align: right !important;
    }

    .text-left-mobile {
        text-align: left !important;
    }

    .w-100-mobile {
        width: 100% !important;
    }

    .h-100-mobile {
        height: 100% !important;
    }

    .m-0-mobile {
        margin: 0 !important;
    }

    .p-0-mobile {
        padding: 0 !important;
    }

    .p-2-mobile {
        padding: var(--space-2) !important;
    }

    .p-3-mobile {
        padding: var(--space-3) !important;
    }

    .p-4-mobile {
        padding: var(--space-4) !important;
    }

    .m-2-mobile {
        margin: var(--space-2) !important;
    }

    .m-3-mobile {
        margin: var(--space-3) !important;
    }

    .m-4-mobile {
        margin: var(--space-4) !important;
    }

    .mb-2-mobile {
        margin-bottom: var(--space-2) !important;
    }

    .mb-3-mobile {
        margin-bottom: var(--space-3) !important;
    }

    .mb-4-mobile {
        margin-bottom: var(--space-4) !important;
    }

    .mt-2-mobile {
        margin-top: var(--space-2) !important;
    }

    .mt-3-mobile {
        margin-top: var(--space-3) !important;
    }

    .mt-4-mobile {
        margin-top: var(--space-4) !important;
    }
}

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

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

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

    .chart-container {
        padding: var(--space-6);
    }
}

/* Large screen optimizations */
@media (min-width: 1025px) {
    .container-fluid {
        max-width: 1400px;
        margin: 0 auto;
    }

    .hero-section {
        padding: var(--space-16) var(--space-8);
    }

    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }

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

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

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 44px;
        min-width: 44px;
    }

    .form-control,
    .form-select {
        min-height: 44px;
    }

    .card {
        cursor: pointer;
    }

    .card:hover {
        transform: none;
    }

    .btn:hover {
        transform: none;
    }

    .stat-card:hover {
        transform: none;
    }

    .question-card:hover {
        transform: none;
    }
}

/* High DPI display optimizations */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .stat-icon,
    .feature-icon,
    .department-icon {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Print styles */
@media print {
    .no-print {
        display: none !important;
    }

    .print-only {
        display: block !important;
    }

    .hero-section {
        background: none !important;
        color: black !important;
    }

    .card {
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }

    .btn {
        background: none !important;
        color: black !important;
        border: 1px solid #ccc !important;
    }

    .chart-container {
        page-break-inside: avoid;
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dark mode mobile */
@media (max-width: 768px) and (prefers-color-scheme: dark) {
    .hero-section {
        background: linear-gradient(135deg, var(--primary-800) 0%, var(--primary-900) 100%);
    }

    .card {
        background: var(--neutral-800);
        color: var(--neutral-100);
    }

    .form-control,
    .form-select {
        background: var(--neutral-700);
        color: var(--neutral-100);
        border-color: var(--neutral-600);
    }

    .btn-outline-primary {
        border-color: var(--primary-500);
        color: var(--primary-500);
    }

    .btn-outline-primary:hover {
        background: var(--primary-500);
        color: white;
    }
}