/**
 * Mobile Responsiveness Enhancements for UOJ Verification Portal
 * Provides responsive design utilities and mobile-specific optimizations
 */

/* Mobile-first responsive design */
@media (max-width: 576px) {
    /* Base mobile styles */
    .container {
        padding-left: 10px;
        padding-right: 10px;
    }
    
    /* Typography adjustments */
    .page-header h1 {
        font-size: 1.75rem;
        line-height: 1.2;
    }
    
    .page-header .lead {
        font-size: 1rem;
    }
    
    /* Card adjustments */
    .card {
        margin: 5px;
        padding: 0.75rem;
        border-radius: 15px;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    /* Form adjustments */
    .form-outline {
        margin-bottom: 1rem;
    }
    
    .form-control {
        font-size: 16px; /* Prevents zoom on iOS */
        padding: 12px 16px;
    }
    
    .form-label {
        font-size: 0.9rem;
    }
    
    /* Button adjustments */
    .btn {
        padding: 12px 20px;
        font-size: 1rem;
        min-height: 48px; /* Touch target size */
    }
    
    .btn-lg {
        padding: 16px 24px;
        font-size: 1.1rem;
        min-height: 56px;
    }
    
    /* Verification card mobile layout */
    .verification-details {
        padding: 1rem;
    }
    
    .verification-details .row {
        flex-direction: column;
    }
    
    .verification-details p {
        font-size: 1rem;
        margin-bottom: 0.75rem;
    }
    
    /* Action buttons mobile layout */
    .d-flex.gap-2 {
        flex-direction: column;
        gap: 0.75rem !important;
    }
    
    .d-flex.gap-2 .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    /* Alert adjustments */
    .alert {
        padding: 1rem;
        margin: 1rem 0;
        border-radius: 10px;
    }
    
    /* Navigation adjustments */
    .breadcrumb {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }
    
    /* Footer adjustments */
    footer {
        padding: 1.5rem 0;
        text-align: center;
    }
    
    footer .row {
        flex-direction: column;
    }
    
    /* Skip links mobile positioning */
    .skip-links {
        position: fixed;
        top: -100px;
        left: 10px;
        z-index: 1000;
    }
    
    .skip-link {
        padding: 10px 16px;
        font-size: 0.9rem;
    }
}

/* Tablet styles */
@media (min-width: 577px) and (max-width: 768px) {
    .container {
        padding-left: 20px;
        padding-right: 20px;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .card {
        margin: 10px;
        padding: 1.5rem;
    }
    
    .verification-details .row {
        flex-direction: row;
    }
    
    .d-flex.gap-2 {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .d-flex.gap-2 .btn {
        flex: 1;
        min-width: 120px;
    }
}

/* Large mobile and small tablet */
@media (min-width: 769px) and (max-width: 992px) {
    .page-header h1 {
        font-size: 2.25rem;
    }
    
    .card {
        margin: 15px auto;
        padding: 2rem;
    }
    
    .verification-details {
        padding: 1.5rem;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    /* Increase touch targets */
    .btn {
        min-height: 44px;
        padding: 12px 20px;
    }
    
    .form-control {
        min-height: 44px;
        padding: 12px 16px;
    }
    
    /* Remove hover effects on touch devices */
    .btn:hover {
        transform: none;
        box-shadow: none;
    }
    
    .card:hover {
        transform: none;
        box-shadow: none;
    }
    
    /* Add active states for touch feedback */
    .btn:active {
        transform: scale(0.98);
        transition: transform 0.1s ease;
    }
    
    .card:active {
        transform: scale(0.99);
        transition: transform 0.1s ease;
    }
}

/* Landscape mobile orientation */
@media (max-width: 768px) and (orientation: landscape) {
    .page-header {
        margin-bottom: 1rem;
    }
    
    .page-header h1 {
        font-size: 1.5rem;
    }
    
    .card {
        margin: 5px;
        padding: 1rem;
    }
    
    .verification-details {
        padding: 0.75rem;
    }
    
    .verification-details p {
        font-size: 0.9rem;
        margin-bottom: 0.5rem;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    /* Ensure crisp rendering on retina displays */
    .card {
        border-width: 0.5px;
    }
    
    .btn {
        border-width: 0.5px;
    }
    
    .form-control {
        border-width: 0.5px;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #00ffff;
        --primary-dark: #00cccc;
        --dark-color: #000000;
        --dark-secondary: #111111;
    }
    
    .bg-glass {
        background: rgba(0, 0, 0, 0.3);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .form-control {
        background-color: rgba(255, 255, 255, 0.1);
        border-color: rgba(255, 255, 255, 0.2);
        color: white;
    }
    
    .form-control:focus {
        background-color: rgba(255, 255, 255, 0.15);
        border-color: var(--primary-color);
        color: white;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    #particles-js {
        display: none;
    }
    
    .btn:hover,
    .card:hover {
        transform: none;
    }
}

/* Print styles for mobile */
@media print and (max-width: 768px) {
    body {
        font-size: 12px;
        line-height: 1.4;
    }
    
    .card {
        margin: 0;
        padding: 1rem;
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .verification-details {
        padding: 0.5rem;
    }
    
    .verification-details p {
        font-size: 11px;
        margin-bottom: 0.5rem;
    }
    
    .print-header {
        margin-bottom: 1rem;
        padding-bottom: 0.5rem;
    }
}

/* Mobile-specific utility classes */
.mobile-only {
    display: block;
}

.desktop-only {
    display: none;
}

@media (min-width: 769px) {
    .mobile-only {
        display: none;
    }
    
    .desktop-only {
        display: block;
    }
}

/* Mobile navigation */
.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 10px;
    z-index: 1000;
}

.mobile-nav .nav {
    display: flex;
    justify-content: space-around;
    margin: 0;
}

.mobile-nav .nav-item {
    flex: 1;
}

.mobile-nav .nav-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 4px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.75rem;
    transition: color 0.3s ease;
}

.mobile-nav .nav-link:hover,
.mobile-nav .nav-link.active {
    color: var(--primary-color);
}

.mobile-nav .nav-link .material-icons {
    font-size: 1.5rem;
    margin-bottom: 2px;
}

/* Mobile form enhancements */
.mobile-form {
    padding-bottom: 80px; /* Space for mobile nav */
}

.mobile-form .form-control {
    font-size: 16px; /* Prevents zoom on iOS */
    -webkit-appearance: none;
    border-radius: 8px;
}

.mobile-form .btn {
    width: 100%;
    margin-top: 1rem;
}

/* Mobile verification card */
.mobile-verification {
    padding-bottom: 80px;
}

.mobile-verification .verification-details {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 1rem;
    margin: 1rem 0;
}

.mobile-verification .verification-details .row {
    flex-direction: column;
}

.mobile-verification .verification-details .col-md-6 {
    width: 100%;
    margin-bottom: 0.5rem;
}

/* Mobile loading states */
.mobile-loading {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 9999;
}

.mobile-loading .spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.3em;
}

/* Mobile error states */
.mobile-error {
    position: fixed;
    top: 20px;
    left: 10px;
    right: 10px;
    z-index: 9999;
    border-radius: 10px;
}

/* Mobile success states */
.mobile-success {
    position: fixed;
    top: 20px;
    left: 10px;
    right: 10px;
    z-index: 9999;
    border-radius: 10px;
}

/* Mobile-specific animations */
@keyframes slideUpMobile {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.mobile-slide-up {
    animation: slideUpMobile 0.3s ease-out;
}

/* Mobile gesture support */
.mobile-swipe {
    touch-action: pan-x pan-y;
    -webkit-overflow-scrolling: touch;
}

.mobile-swipe .card {
    transition: transform 0.3s ease;
}

.mobile-swipe .card.swipe-left {
    transform: translateX(-100%);
}

.mobile-swipe .card.swipe-right {
    transform: translateX(100%);
}