/* 
 * Kaviz Academy - Mobile Responsive CSS
 * සියලුම අතුරු මුහුනත් 100% mobile responsive කිරීම සඳහා
 */

/* Base styles for all devices */
* {
    box-sizing: border-box;
}

body {
    font-size: 16px;
    line-height: 1.5;
}

/* Container responsive padding */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Navigation responsive */
.navbar {
    padding: 0.5rem 1rem;
}

.navbar-brand {
    font-size: 1.1rem;
}

.navbar-nav .nav-link {
    padding: 0.5rem 1rem;
}

/* Table responsive improvements */
.table-responsive {
    border: none;
    margin-bottom: 0;
}

.table {
    margin-bottom: 0;
}

.table td, .table th {
    padding: 0.5rem;
    vertical-align: middle;
}

/* Card responsive */
.card {
    margin-bottom: 1rem;
    border: 1px solid rgba(0,0,0,.125);
    border-radius: 0.5rem;
}

.card-header {
    padding: 0.75rem 1rem;
    background-color: rgba(0,0,0,.03);
    border-bottom: 1px solid rgba(0,0,0,.125);
}

.card-body {
    padding: 1rem;
}

/* Button responsive */
.btn {
    padding: 0.5rem 1rem;
    margin: 0.25rem;
    border-radius: 0.375rem;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    margin: 0.125rem;
}

/* Form responsive */
.form-control {
    padding: 0.5rem 0.75rem;
    font-size: 1rem;
    border-radius: 0.375rem;
}

.form-floating > label {
    font-size: 0.875rem;
}

/* Alert responsive */
.alert {
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    border-radius: 0.375rem;
}

/* Badge responsive */
.badge {
    padding: 0.375rem 0.5rem;
    font-size: 0.75rem;
    border-radius: 0.25rem;
}

/* Tablet styles (768px - 991.98px) */
@media (max-width: 991.98px) {
    .container {
        padding: 0 10px;
    }
    
    .navbar {
        padding: 0.5rem;
    }
    
    .card-body {
        padding: 0.75rem;
    }
    
    .table td, .table th {
        padding: 0.4rem;
        font-size: 0.9rem;
    }
    
    .btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }
    
    .btn-sm {
        padding: 0.2rem 0.4rem;
        font-size: 0.8rem;
    }
}

/* Mobile styles (less than 768px) */
@media (max-width: 767.98px) {
    body {
        font-size: 14px;
    }
    
    .container {
        padding: 0 5px;
    }
    
    /* Navigation mobile */
    .navbar {
        padding: 0.25rem 0.5rem;
    }
    
    .navbar-brand {
        font-size: 1rem;
    }
    
    .navbar-nav .nav-link {
        padding: 0.375rem 0.75rem;
        font-size: 0.9rem;
    }
    
    .navbar-toggler {
        padding: 0.25rem 0.5rem;
        font-size: 0.875rem;
    }
    
    /* Hide text on small screens, keep icons */
    .d-sm-inline.d-none {
        display: none !important;
    }
    
    .d-md-inline.d-none {
        display: none !important;
    }
    
    .d-lg-inline.d-none {
        display: none !important;
    }
    
    /* Cards mobile */
    .card {
        margin-bottom: 0.75rem;
        border-radius: 0.375rem;
    }
    
    .card-header {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }
    
    .card-header h1, 
    .card-header h2, 
    .card-header h3 {
        font-size: 1.1rem;
        margin: 0;
    }
    
    .card-body {
        padding: 0.5rem 0.75rem;
    }
    
    /* Table mobile */
    .table-responsive {
        font-size: 0.8rem;
    }
    
    .table td, .table th {
        padding: 0.3rem 0.2rem;
        font-size: 0.8rem;
    }
    
    .table th {
        font-size: 0.75rem;
        text-align: center;
    }
    
    /* Hide columns on mobile */
    .d-none.d-md-table-cell {
        display: none !important;
    }
    
    .d-none.d-lg-table-cell {
        display: none !important;
    }
    
    /* Show mobile-specific content */
    .d-md-none {
        display: block !important;
    }
    
    .d-lg-none {
        display: block !important;
    }
    
    /* Buttons mobile */
    .btn {
        padding: 0.375rem 0.75rem;
        font-size: 0.875rem;
        margin: 0.125rem;
    }
    
    .btn-sm {
        padding: 0.2rem 0.4rem;
        font-size: 0.75rem;
    }
    
    /* Button groups mobile */
    .btn-group-vertical {
        width: 100%;
    }
    
    .btn-group-vertical .btn {
        width: 100%;
        margin: 0.1rem 0;
    }
    
    /* Forms mobile */
    .form-control {
        padding: 0.5rem;
        font-size: 0.9rem;
    }
    
    .form-floating > label {
        font-size: 0.8rem;
    }
    
    .form-floating > .form-control {
        height: calc(2.5rem + 2px);
    }
    
    /* Tab navigation mobile */
    .nav-tabs {
        border-bottom: 1px solid #dee2e6;
    }
    
    .nav-tabs .nav-link {
        padding: 0.5rem 0.4rem;
        font-size: 0.8rem;
        border: 1px solid transparent;
    }
    
    .nav-tabs .nav-link.active {
        border-color: #dee2e6 #dee2e6 #fff;
    }
    
    /* Alert mobile */
    .alert {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }
    
    /* Badge mobile */
    .badge {
        padding: 0.25rem 0.375rem;
        font-size: 0.7rem;
    }
    
    /* Modal mobile */
    .modal-dialog {
        margin: 0.5rem;
        max-width: calc(100% - 1rem);
    }
    
    .modal-content {
        border-radius: 0.375rem;
    }
    
    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 0.75rem;
    }
    
    /* Flexbox utilities mobile */
    .d-flex.flex-column.flex-md-row {
        gap: 0.5rem;
    }
    
    .justify-content-between.align-items-start.align-items-md-center {
        align-items: flex-start !important;
    }
    
    /* QR Scanner mobile */
    #qr-reader {
        height: 250px !important;
        width: 100% !important;
    }
    
    .qr-container {
        padding: 0.5rem;
        border-radius: 0.5rem;
    }
    
    /* ID Card mobile */
    .id-card {
        max-width: 100%;
        width: 100% !important;
        height: auto !important;
        min-height: 200px;
    }
    
    .id-card-container {
        padding: 0.5rem;
    }
    
    /* Photo capture mobile */
    #video {
        max-width: 100%;
        height: auto;
    }
    
    .captured-photo {
        max-width: 100%;
    }
    
    /* Print styles mobile */
    @media print {
        .container {
            padding: 0;
        }
        
        .no-print {
            display: none !important;
        }
        
        body {
            font-size: 12px;
        }
        
        .table td, .table th {
            padding: 0.2rem;
            font-size: 10px;
        }
    }
}

/* Extra small mobile styles (less than 576px) */
@media (max-width: 575.98px) {
    body {
        font-size: 13px;
    }
    
    .container {
        padding: 0 3px;
    }
    
    .navbar {
        padding: 0.2rem 0.3rem;
    }
    
    .navbar-brand {
        font-size: 0.9rem;
    }
    
    .card-header {
        padding: 0.4rem 0.5rem;
    }
    
    .card-header h1, 
    .card-header h2, 
    .card-header h3 {
        font-size: 1rem;
    }
    
    .card-body {
        padding: 0.4rem 0.5rem;
    }
    
    .table td, .table th {
        padding: 0.2rem 0.1rem;
        font-size: 0.7rem;
    }
    
    .btn {
        padding: 0.3rem 0.6rem;
        font-size: 0.8rem;
    }
    
    .btn-sm {
        padding: 0.15rem 0.3rem;
        font-size: 0.7rem;
    }
    
    .nav-tabs .nav-link {
        padding: 0.4rem 0.3rem;
        font-size: 0.75rem;
    }
    
    .modal-dialog {
        margin: 0.25rem;
        max-width: calc(100% - 0.5rem);
    }
    
    .form-control {
        padding: 0.4rem;
        font-size: 0.85rem;
    }
    
    .id-card {
        min-height: 180px;
    }
    
    #qr-reader {
        height: 200px !important;
    }
}

/* Landscape orientation mobile */
@media (max-width: 767.98px) and (orientation: landscape) {
    .navbar {
        padding: 0.2rem 0.5rem;
    }
    
    .card-header {
        padding: 0.4rem 0.75rem;
    }
    
    .card-body {
        padding: 0.4rem 0.75rem;
    }
    
    #qr-reader {
        height: 200px !important;
    }
}

/* Utility classes for responsive visibility */
.mobile-only {
    display: none;
}

.desktop-only {
    display: block;
}

@media (max-width: 767.98px) {
    .mobile-only {
        display: block !important;
    }
    
    .desktop-only {
        display: none !important;
    }
}

/* Responsive spacing utilities */
.p-responsive {
    padding: 1rem;
}

.m-responsive {
    margin: 1rem;
}

@media (max-width: 767.98px) {
    .p-responsive {
        padding: 0.5rem;
    }
    
    .m-responsive {
        margin: 0.5rem;
    }
}

@media (max-width: 575.98px) {
    .p-responsive {
        padding: 0.25rem;
    }
    
    .m-responsive {
        margin: 0.25rem;
    }
}

/* Text responsive */
.text-responsive {
    font-size: 1rem;
}

@media (max-width: 767.98px) {
    .text-responsive {
        font-size: 0.9rem;
    }
}

@media (max-width: 575.98px) {
    .text-responsive {
        font-size: 0.8rem;
    }
}

/* Loading overlay responsive */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loading-content {
    background: white;
    padding: 2rem;
    border-radius: 0.5rem;
    text-align: center;
    margin: 1rem;
    max-width: 90%;
}

@media (max-width: 767.98px) {
    .loading-content {
        padding: 1rem;
        margin: 0.5rem;
        max-width: 95%;
    }
}

/* WhatsApp specific responsive */
.whatsapp-btn {
    padding: 0.75rem 1.5rem;
    border-radius: 1.5rem;
    transition: all 0.3s ease;
}

@media (max-width: 767.98px) {
    .whatsapp-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}

.qr-image {
    max-width: 100%;
    height: auto;
    border-radius: 0.5rem;
}

/* Status indicators responsive */
.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 0.5rem;
}

@media (max-width: 767.98px) {
    .status-indicator {
        width: 8px;
        height: 8px;
        margin-right: 0.25rem;
    }
}

/* Ensure touch targets are large enough on mobile */
@media (max-width: 767.98px) {
    .btn, .nav-link, .navbar-toggler {
        min-height: 44px;
        min-width: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
    
    .table tbody tr {
        cursor: pointer;
    }
    
    .table tbody tr:hover {
        background-color: rgba(0, 0, 0, 0.05);
    }
}

/* Responsive images */
img {
    max-width: 100%;
    height: auto;
}

/* Responsive video */
video {
    max-width: 100%;
    height: auto;
}

/* Ensure forms don't zoom on iOS */
@media (max-width: 767.98px) {
    input[type="text"],
    input[type="email"],
    input[type="tel"],
    input[type="password"],
    textarea,
    select {
        font-size: 16px !important;
    }
}

/* Modern enhancements for dashboard */
@media (max-width: 767.98px) {
    /* Enhanced navbar mobile */
    .navbar-brand {
        font-size: 1.1rem !important;
        font-weight: 600;
    }
    
    .navbar-toggler {
        border: none;
        padding: 0.25rem 0.5rem;
        font-size: 1rem;
    }
    
    .navbar-toggler:focus {
        box-shadow: none;
    }
    
    /* Dashboard header mobile */
    .dashboard-header {
        padding: 1rem 0 !important;
        margin-bottom: 1rem !important;
    }
    
    .dashboard-title {
        font-size: 1.5rem !important;
        margin-bottom: 0.25rem !important;
    }
    
    .dashboard-subtitle {
        font-size: 0.9rem !important;
    }
    
    /* Statistics cards mobile */
    .stats-cards {
        margin-bottom: 1rem !important;
    }
    
    .stat-card {
        padding: 1rem !important;
        margin-bottom: 0.75rem !important;
        text-align: center;
    }
    
    .stat-icon {
        width: 2.5rem !important;
        height: 2.5rem !important;
        margin: 0 auto 0.75rem auto !important;
        font-size: 1rem !important;
    }
    
    .stat-number {
        font-size: 1.5rem !important;
        margin-bottom: 0.25rem !important;
    }
    
    .stat-label {
        font-size: 0.8rem !important;
    }
    
    /* Enhanced card mobile */
    .card {
        border-radius: 8px !important;
        margin-bottom: 1rem !important;
    }
    
    .card-header {
        padding: 1rem !important;
        border-radius: 8px 8px 0 0 !important;
    }
    
    .card-title {
        font-size: 1.1rem !important;
        margin-bottom: 0.25rem !important;
    }
    
    .card-body {
        padding: 0 !important;
    }
    
    /* Enhanced table mobile */
    .table-responsive {
        border-radius: 0 0 8px 8px !important;
        border: none !important;
        margin-bottom: 0 !important;
    }
    
    .table th {
        font-size: 0.75rem !important;
        padding: 0.75rem 0.5rem !important;
        background: #f8fafc !important;
        border-bottom: 1px solid #e2e8f0 !important;
        font-weight: 600 !important;
        text-transform: uppercase !important;
        letter-spacing: 0.025em !important;
        color: #64748b !important;
    }
    
    .table td {
        font-size: 0.8rem !important;
        padding: 0.75rem 0.5rem !important;
        border-bottom: 1px solid #f1f5f9 !important;
        vertical-align: middle !important;
    }
    
    .table tbody tr:hover {
        background-color: #f8fafc !important;
    }
    
    /* Student ID styling mobile */
    .student-id {
        font-size: 0.7rem !important;
        padding: 0.2rem 0.4rem !important;
        border-radius: 4px !important;
        display: inline-block !important;
    }
    
    /* School info mobile */
    .school-info {
        font-size: 0.75rem !important;
        color: #64748b !important;
        margin-top: 0.25rem !important;
    }
    
    /* WhatsApp link mobile */
    .whatsapp-link {
        font-size: 0.75rem !important;
        display: flex !important;
        align-items: center !important;
        gap: 0.25rem !important;
    }
    
    /* Action buttons mobile */
    .action-buttons {
        flex-direction: column !important;
        gap: 0.25rem !important;
        width: 100% !important;
    }
    
    .action-buttons .btn {
        width: 100% !important;
        justify-content: center !important;
        padding: 0.5rem !important;
        font-size: 0.75rem !important;
    }
    
    /* Enhanced tab navigation mobile */
    .nav-tabs {
        border-bottom: 2px solid #e5e7eb !important;
        margin-bottom: 0 !important;
    }
    
    .nav-tabs .nav-link {
        padding: 0.75rem 1rem !important;
        font-size: 0.8rem !important;
        font-weight: 600 !important;
        border: none !important;
        border-radius: 0 !important;
        color: #6b7280 !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        gap: 0.5rem !important;
    }
    
    .nav-tabs .nav-link.active {
        color: #0066cc !important;
        background-color: transparent !important;
        border-bottom: 3px solid #0066cc !important;
    }
    
    /* Empty state mobile */
    .text-center.py-5 {
        padding: 2rem 1rem !important;
    }
    
    .text-center.py-5 i {
        font-size: 2rem !important;
        margin-bottom: 1rem !important;
    }
    
    .text-center.py-5 h4 {
        font-size: 1.1rem !important;
        margin-bottom: 0.5rem !important;
    }
    
    .text-center.py-5 p {
        font-size: 0.9rem !important;
        margin-bottom: 1rem !important;
    }
}

/* Extra small mobile (< 576px) enhancements */
@media (max-width: 575.98px) {
    .container {
        padding: 0 0.5rem !important;
    }
    
    .dashboard-header {
        padding: 0.75rem 0 !important;
    }
    
    .dashboard-title {
        font-size: 1.25rem !important;
    }
    
    .dashboard-subtitle {
        font-size: 0.85rem !important;
    }
    
    .stat-card {
        padding: 0.75rem !important;
    }
    
    .stat-icon {
        width: 2rem !important;
        height: 2rem !important;
        font-size: 0.875rem !important;
    }
    
    .stat-number {
        font-size: 1.25rem !important;
    }
    
    .stat-label {
        font-size: 0.75rem !important;
    }
    
    .card-header {
        padding: 0.75rem !important;
    }
    
    .card-title {
        font-size: 1rem !important;
    }
    
    .table th,
    .table td {
        font-size: 0.7rem !important;
        padding: 0.5rem 0.375rem !important;
    }
    
    .nav-tabs .nav-link {
        padding: 0.625rem 0.75rem !important;
        font-size: 0.75rem !important;
    }
    
    .action-buttons .btn {
        padding: 0.375rem !important;
        font-size: 0.7rem !important;
    }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    .main-container {
        background: rgba(17, 24, 39, 0.95) !important;
        color: #f9fafb !important;
    }
    
    .navbar {
        background: rgba(17, 24, 39, 0.95) !important;
        border-bottom: 1px solid #374151 !important;
    }
    
    .card {
        background: #1f2937 !important;
        border: 1px solid #374151 !important;
    }
    
    .card-header {
        background: #1f2937 !important;
        border-bottom: 1px solid #374151 !important;
    }
    
    .table th {
        background: #374151 !important;
        color: #f9fafb !important;
        border-bottom: 1px solid #4b5563 !important;
    }
    
    .table td {
        border-bottom: 1px solid #374151 !important;
        color: #f9fafb !important;
    }
    
    .table tbody tr:hover {
        background-color: #374151 !important;
    }
}

/* Performance optimizations */
.stat-card,
.card,
.btn,
.nav-link {
    will-change: transform;
}

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

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid currentColor !important;
    }
    
    .card {
        border: 2px solid currentColor !important;
    }
    
    .table th,
    .table td {
        border: 1px solid currentColor !important;
    }
}

/* Focus management for keyboard navigation */
.btn:focus-visible,
.nav-link:focus-visible,
.table tbody tr:focus-visible {
    outline: 2px solid #0066cc !important;
    outline-offset: 2px !important;
}

/* Print optimizations */
@media print {
    .navbar,
    .nav-tabs,
    .action-buttons,
    .btn {
        display: none !important;
    }
    
    .card {
        border: 1px solid #000 !important;
        break-inside: avoid !important;
    }
    
    .table th,
    .table td {
        border: 1px solid #000 !important;
        padding: 0.25rem !important;
        font-size: 10px !important;
    }
    
    .stat-card {
        border: 1px solid #000 !important;
        margin-bottom: 0.5rem !important;
    }
}