/* Additional mobile performance optimizations */

/* Reduce layout thrashing */
* {
    box-sizing: border-box;
}

/* Optimize touch interactions */
@media (max-width: 767.98px) {
    /* Remove 300ms click delay on mobile */
    a, button, input, select, textarea, [role="button"] {
        touch-action: manipulation;
    }
    
    /* Prevent text selection on UI elements */
    .navbar, .btn, .badge, .alert .btn-close {
        -webkit-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
    }
    
    /* Optimize animations for mobile */
    @media (prefers-reduced-motion: reduce) {
        * {
            animation-duration: 0.01ms !important;
            animation-iteration-count: 1 !important;
            transition-duration: 0.01ms !important;
        }
    }
    
    /* Hardware acceleration for smooth scrolling */
    .card, .modal, .dropdown-menu {
        transform: translateZ(0);
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
    }
    
    /* Optimize image rendering */
    img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: optimize-contrast;
        -ms-interpolation-mode: nearest-neighbor;
    }
    
    /* Optimize table scrolling */
    .table-responsive {
        -webkit-overflow-scrolling: touch;
        overflow-x: auto;
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
    }
    
    /* Mobile button fixes for invoice page */
    .invoice-header-buttons {
        width: 100%;
    }
    
    .invoice-header-buttons .btn {
        min-width: 44px;
        min-height: 44px;
        white-space: nowrap;
    }
    
    /* Responsive statistics cards */
    .invoice-stats .card-body {
        padding: 0.75rem !important;
    }
    
    .invoice-stats h3 {
        font-size: 1.25rem !important;
    }
    
    .invoice-stats .card-title {
        font-size: 0.7rem !important;
    }
    
    /* Better mobile spacing */
    .container-fluid {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    /* Optimize modal performance */
    .modal {
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
    }
    
    .modal-backdrop {
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
    }
    
    /* Optimize dropdown menus */
    .dropdown-menu {
        will-change: transform;
    }
    
    /* Prevent zoom on form inputs */
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    input[type="tel"],
    input[type="url"],
    input[type="search"],
    input[type="date"],
    input[type="datetime-local"],
    input[type="time"],
    textarea,
    select {
        font-size: 16px !important;
        -webkit-appearance: none;
        -moz-appearance: none;
        appearance: none;
    }
    
    /* Remove outline on touch devices */
    * {
        -webkit-tap-highlight-color: transparent;
        outline: none;
    }
    
    /* Focus styles for accessibility */
    *:focus {
        outline: 2px solid var(--brand-blue);
        outline-offset: 2px;
    }
    
    /* Ensure navbar visibility on mobile */
    .navbar {
        background-color: var(--brand-white) !important;
    }
    
    .navbar-brand {
        color: var(--brand-navy) !important;
    }
    
    .navbar-nav .nav-link {
        color: var(--brand-dark-gray) !important;
    }
    
    .navbar-toggler {
        border: 1px solid var(--brand-dark-gray) !important;
        color: var(--brand-dark-gray) !important;
    }
    
    /* Optimize loading states */
    .loading {
        pointer-events: none;
        opacity: 0.6;
    }
    
    /* Optimize notification positioning for mobile */
    .alert {
        position: relative;
        z-index: 1000;
        border-radius: 0.75rem;
        margin: 0.5rem;
    }
    
    /* Optimize search results for mobile */
    .search-result-card {
        will-change: transform;
        contain: layout style paint;
    }
    
    /* Optimize hero section images */
    .hero-section img {
        will-change: transform;
        contain: layout style paint;
    }
}

/* Performance optimizations for slow connections */
@media (prefers-reduced-motion: reduce), (max-resolution: 1dppx) {
    .fade-in,
    .slide-in,
    .zoom-in {
        animation: none !important;
        transition: none !important;
    }
    
    .card:hover {
        transform: none !important;
    }
}

/* Optimize for very small screens */
@media (max-width: 375px) {
    .container {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
    
    .card {
        margin-bottom: 0.75rem;
    }
    
    .btn {
        padding: 0.625rem 1rem;
        font-size: 0.9rem;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
}

/* Optimize for landscape orientation on mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .hero-section {
        padding: 1rem 0;
    }
    
    .navbar {
        padding: 0.25rem 0;
    }
    
    .container {
        margin-top: 1rem;
    }
}