/* 
 * Enhanced Responsive Design & Mobile Optimization
 * Comprehensive breakpoints, mobile-first approach, and advanced responsive features
 */

/* Mobile-First Responsive Breakpoints */
:root {
    --breakpoint-xs: 0px;
    --breakpoint-sm: 576px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 992px;
    --breakpoint-xl: 1200px;
    --breakpoint-xxl: 1400px;
}

/* Enhanced Mobile Navigation */
@media (max-width: 991.98px) {
    .navbar-collapse {
        background-color: var(--navbar-bg);
        border-radius: var(--border-radius);
        margin-top: 1rem;
        padding: 1rem;
        box-shadow: var(--shadow-hover);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
    }
    
    .navbar-nav {
        gap: 0.5rem;
    }
    
    .navbar-nav .nav-link {
        padding: 0.75rem 1rem !important;
        border-radius: var(--border-radius-sm);
        transition: var(--transition);
    }
    
    .navbar-nav .nav-link:hover {
        background-color: var(--bg-secondary);
        transform: translateX(8px);
    }
    
    .dropdown-menu {
        position: static !important;
        float: none !important;
        margin: 0.5rem 0 0 1rem !important;
        border: none !important;
        box-shadow: none !important;
        background-color: var(--bg-secondary) !important;
    }
    
    .dropdown-item {
        padding: 0.5rem 1rem !important;
        font-size: 0.9rem;
    }
}

/* Enhanced Mobile Hamburger Menu */
@media (max-width: 767.98px) {
    .navbar-brand h2 {
        font-size: 1rem !important;
        line-height: 1.2;
    }
    
    .theme-toggle {
        width: 45px !important;
        height: 45px !important;
        right: 15px !important;
        font-size: 1rem !important;
    }
    
    /* Mobile-optimized topbar */
    .container-fluid .row.gx-0.d-none.d-lg-flex {
        display: none !important;
    }
    
    /* Mobile hero section */
    .header-carousel .owl-carousel-item {
        min-height: 60vh !important;
    }
    
    .header-carousel .owl-carousel-item h1 {
        font-size: 1.75rem !important;
        line-height: 1.2;
    }
    
    .header-carousel .owl-carousel-item p {
        font-size: 0.9rem !important;
        line-height: 1.5;
    }
    
    /* Mobile button adjustments */
    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}

/* Tablet Optimizations */
@media (min-width: 768px) and (max-width: 991.98px) {
    .container {
        max-width: 720px;
    }
    
    .navbar-brand h2 {
        font-size: 1.2rem !important;
    }
    
    .header-carousel .owl-carousel-item h1 {
        font-size: 2.2rem !important;
    }
    
    .header-carousel .owl-carousel-item p {
        font-size: 1rem !important;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .service-item {
        margin-bottom: 2rem;
    }
}

/* Desktop Enhancements */
@media (min-width: 992px) {
    /* Enhanced dropdown animations */
    .navbar .nav-item .dropdown-menu {
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .navbar .nav-item:hover .dropdown-menu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    /* Enhanced hover effects */
    .nav-link {
        position: relative;
        overflow: hidden;
    }
    
    .nav-link::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
        transition: left 0.5s;
    }
    
    .nav-link:hover::before {
        left: 100%;
    }
}

/* Large Desktop Optimizations */
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
    
    .navbar-brand h2 {
        font-size: 1.5rem !important;
    }
    
    .header-carousel .owl-carousel-item h1 {
        font-size: 3rem !important;
    }
    
    .feature-card {
        padding: 2.5rem;
    }
}

/* Extra Large Desktop */
@media (min-width: 1400px) {
    .container {
        max-width: 1320px;
    }
    
    .header-carousel .owl-carousel-item h1 {
        font-size: 3.5rem !important;
    }
}

/* Enhanced Card Responsiveness */
@media (max-width: 575.98px) {
    .service-item,
    .feature-card,
    .card-3d {
        margin-bottom: 1.5rem;
    }
    
    .service-item .p-4 {
        padding: 1.5rem !important;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .display-1 {
        font-size: 3rem !important;
    }
    
    .display-5 {
        font-size: 1.5rem !important;
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    /* Remove hover effects on touch devices */
    .card:hover,
    .service-item:hover,
    .feature-card:hover {
        transform: none;
        box-shadow: var(--shadow-card) !important;
    }
    
    .btn:hover {
        transform: none;
    }
    
    .theme-toggle:hover {
        transform: translateY(-50%) scale(1) !important;
    }
    
    /* Larger touch targets */
    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
    
    .btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    .theme-toggle {
        min-width: 50px;
        min-height: 50px;
    }
}

/* High DPI Display Optimizations */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    /* Sharper text rendering */
    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        text-rendering: optimizeLegibility;
    }
    
    /* Crisp borders */
    .card,
    .btn,
    .navbar {
        border-width: 0.5px;
    }
}

/* Dark Mode Mobile Optimizations */
@media (max-width: 767.98px) {
    [data-theme="dark"] .navbar-collapse {
        background-color: rgba(30, 41, 59, 0.95);
        border: 1px solid var(--border-color);
    }
    
    [data-theme="dark"] .dropdown-menu {
        background-color: var(--bg-tertiary) !important;
    }
}

/* Landscape Mobile Optimizations */
@media (max-width: 767.98px) and (orientation: landscape) {
    .header-carousel .owl-carousel-item {
        min-height: 100vh !important;
    }
    
    .navbar-nav .nav-link {
        padding: 0.5rem 1rem !important;
    }
    
    .theme-toggle {
        top: auto !important;
        bottom: 20px !important;
        transform: none !important;
    }
}

/* Container Fluid Responsiveness */
.container-fluid {
    padding-left: 15px;
    padding-right: 15px;
}

@media (min-width: 576px) {
    .container-fluid {
        padding-left: 20px;
        padding-right: 20px;
    }
}

@media (min-width: 768px) {
    .container-fluid {
        padding-left: 30px;
        padding-right: 30px;
    }
}

@media (min-width: 1200px) {
    .container-fluid {
        padding-left: 40px;
        padding-right: 40px;
    }
}

/* Enhanced Footer Responsiveness */
@media (max-width: 767.98px) {
    .footer .container {
        padding: 2rem 1rem;
    }
    
    .footer .row > div {
        margin-bottom: 2rem;
        text-align: center;
    }
    
    .footer .row > div:last-child {
        margin-bottom: 0;
    }
    
    .footer .btn-social {
        margin: 0 0.25rem;
    }
}

/* Enhanced Back to Top Responsiveness */
@media (max-width: 767.98px) {
    .back-to-top {
        right: 20px !important;
        bottom: 80px !important;
        width: 45px !important;
        height: 45px !important;
    }
}

/* Improved Image Responsiveness */
img {
    max-width: 100%;
    height: auto;
}

.img-fluid {
    max-width: 100%;
    height: auto;
}

/* Enhanced Carousel Responsiveness */
@media (max-width: 767.98px) {
    .owl-carousel .owl-nav {
        display: none;
    }
    
    .owl-carousel .owl-dots {
        text-align: center;
        margin-top: 1rem;
    }
    
    .owl-carousel .owl-dot {
        width: 10px;
        height: 10px;
        border-radius: 50%;
        background-color: rgba(255, 255, 255, 0.5);
        margin: 0 5px;
        transition: var(--transition);
    }
    
    .owl-carousel .owl-dot.active {
        background-color: var(--primary);
    }
}

/* Enhanced Typography Responsiveness */
@media (max-width: 575.98px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    h4 { font-size: 1.125rem; }
    h5 { font-size: 1rem; }
    h6 { font-size: 0.875rem; }
    
    p { font-size: 0.9rem; }
    .small { font-size: 0.8rem; }
}

/* Enhanced Accessibility for Mobile */
@media (max-width: 767.98px) {
    /* Larger focus indicators */
    .btn:focus,
    .nav-link:focus,
    .dropdown-item:focus {
        outline: 3px solid var(--primary);
        outline-offset: 2px;
    }
    
    /* Better spacing for touch targets */
    .navbar-nav .nav-link {
        margin-bottom: 0.25rem;
    }
    
    .dropdown-item {
        margin-bottom: 0.125rem;
    }
}

/* Print Optimizations */
@media print {
    .navbar,
    .theme-toggle,
    .back-to-top,
    .footer {
        display: none !important;
    }
    
    .container,
    .container-fluid {
        width: 100% !important;
        max-width: none !important;
        padding: 0 !important;
        margin: 0 !important;
    }
    
    .card,
    .service-item,
    .feature-card {
        break-inside: avoid;
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
    
    h1, h2, h3 {
        break-after: avoid;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: #000 !important;
        background: #fff !important;
    }
}

/* Reduced Motion Preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .animate-on-scroll {
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --shadow-card: 0 0 0 2px var(--border-color);
        --shadow-hover: 0 0 0 3px var(--primary);
    }
    
    .btn,
    .card,
    .navbar,
    .dropdown-menu {
        border: 2px solid var(--border-color) !important;
    }
    
    .btn-primary {
        background: var(--primary) !important;
        border-color: var(--primary-dark) !important;
    }
    
    .theme-toggle {
        border: 2px solid var(--primary) !important;
    }
}