/* DSLLM Blog - Responsive Design */
/* Philosophy: "Adapt like water, flow to any container" */

/* Mobile First Approach - Base styles are mobile */

/* Small devices (phones, 576px and up) */
@media (max-width: 575.98px) {
    :root {
        --spacing-4: 0.75rem;
        --spacing-8: 1.5rem;
        --spacing-12: 2rem;
        --spacing-16: 2.5rem;
    }
    
    .nav-container {
        padding: 0 var(--spacing-4);
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary-color);
        flex-direction: column;
        padding: var(--spacing-4);
        box-shadow: var(--shadow-lg);
        border-radius: 0 0 var(--border-radius-xl) var(--border-radius-xl);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links li {
        margin-bottom: var(--spacing-2);
    }
    
    .nav-links a {
        display: block;
        padding: var(--spacing-3);
        text-align: center;
        border-radius: var(--border-radius);
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: var(--spacing-12) 0;
    }
    
    .hero-container {
        padding: 0 var(--spacing-4);
    }
    
    .hero h1 {
        font-size: var(--font-size-3xl);
        margin-bottom: var(--spacing-3);
    }
    
    .hero p {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-6);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-button {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .main-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
        padding: var(--spacing-8) var(--spacing-4);
    }
    
    .blog-post {
        padding: var(--spacing-6);
    }
    
    .post-title {
        font-size: var(--font-size-xl);
    }
    
    .post-meta {
        flex-wrap: wrap;
        gap: var(--spacing-2);
    }
    
    .sidebar {
        order: -1; /* Move sidebar above content on mobile */
        gap: var(--spacing-6);
    }
    
    .sidebar-widget {
        padding: var(--spacing-4);
    }
    
    .footer-container {
        padding: 0 var(--spacing-4);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 576px) and (max-width: 767.98px) {
    .nav-container {
        padding: 0 var(--spacing-6);
    }
    
    .hero-container {
        padding: 0 var(--spacing-6);
    }
    
    .hero h1 {
        font-size: var(--font-size-4xl);
    }
    
    .main-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-10);
        padding: var(--spacing-10) var(--spacing-6);
    }
    
    .hero-actions {
        flex-direction: row;
        gap: var(--spacing-3);
    }
    
    .cta-button {
        flex: 1;
        max-width: 200px;
    }
    
    .footer-container {
        padding: 0 var(--spacing-6);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 768px) and (max-width: 991.98px) {
    .main-content {
        grid-template-columns: 1fr 300px;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 992px) {
    .hero h1 {
        font-size: 3.5rem;
    }
    
    .main-content {
        grid-template-columns: 2fr 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Ultra-wide screens (1400px and up) */
@media (min-width: 1400px) {
    .nav-container,
    .hero-container,
    .main-content,
    .footer-container {
        max-width: 1400px;
    }
    
    .hero h1 {
        font-size: 4rem;
    }
    
    .hero p {
        font-size: 1.375rem;
    }
}

/* Landscape orientation adjustments */
@media (orientation: landscape) and (max-height: 500px) {
    .hero {
        padding: var(--spacing-8) 0;
    }
    
    .hero h1 {
        font-size: var(--font-size-2xl);
        margin-bottom: var(--spacing-2);
    }
    
    .hero p {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-4);
    }
    
    .hero-actions {
        gap: var(--spacing-2);
    }
    
    .cta-button {
        padding: var(--spacing-2) var(--spacing-4);
        font-size: var(--font-size-sm);
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo img {
        /* Use higher resolution logo for retina displays */
        content: url('/assets/images/logo@2x.svg');
    }
}

/* Touch device specific styles */
@media (hover: none) and (pointer: coarse) {
    .blog-post:hover {
        transform: none; /* Disable hover transforms on touch devices */
    }
    
    .cta-button:hover {
        transform: none;
    }
    
    .read-more:hover {
        gap: var(--spacing-2); /* Reset gap changes on touch */
    }
    
    /* Increase tap targets for better touch interaction */
    .nav-links a,
    .cta-button,
    .search-btn,
    .newsletter-btn {
        min-height: 44px; /* iOS recommended minimum */
        min-width: 44px;
    }
    
    .post-category {
        min-height: 32px;
        display: flex;
        align-items: center;
    }
}

/* Dark theme responsive adjustments */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-gray-50: #1a202c;
        --bg-gray-100: #2d3748;
        --bg-white: #2d3748;
        --text-dark: #f7fafc;
        --text-medium: #e2e8f0;
        --text-light: #a0aec0;
        --border-color: #4a5568;
    }
    
    .hero {
        background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
    }
    
    .header {
        background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
    }
}

/* Print styles for mobile */
@media print {
    .mobile-menu-btn,
    .nav-links,
    .hero-actions,
    .sidebar,
    .footer {
        display: none !important;
    }
    
    .main-content {
        grid-template-columns: 1fr;
        max-width: none;
        margin: 0;
        padding: 0;
    }
    
    .blog-post {
        break-inside: avoid;
        page-break-inside: avoid;
        margin-bottom: 1cm;
    }
    
    .hero {
        padding: 1cm 0;
    }
    
    .hero h1 {
        font-size: 24pt;
        color: #000 !important;
    }
    
    .hero p {
        font-size: 12pt;
        color: #333 !important;
    }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    .blog-post {
        transition: none;
    }
    
    .blog-post:hover {
        transform: none;
    }
    
    .cta-button,
    .read-more,
    .nav-links a {
        transition: none;
    }
    
    .hero-actions {
        animation: none;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0000ee;
        --secondary-color: #000080;
        --text-dark: #000000;
        --text-medium: #000000;
        --bg-white: #ffffff;
        --border-color: #000000;
    }
    
    .blog-post {
        border: 2px solid #000000;
    }
    
    .cta-button.primary {
        background: #000000;
        color: #ffffff;
        border: 2px solid #000000;
    }
    
    .cta-button.secondary {
        background: #ffffff;
        color: #000000;
        border: 2px solid #000000;
    }
}

/* Container queries for modern browsers */
@supports (container-type: inline-size) {
    .sidebar {
        container-type: inline-size;
    }
    
    @container (max-width: 250px) {
        .sidebar-widget {
            padding: var(--spacing-3);
        }
        
        .widget-title {
            font-size: var(--font-size-base);
        }
        
        .search-form {
            flex-direction: column;
        }
        
        .search-btn {
            margin-top: var(--spacing-2);
        }
    }
}

/* Custom scrollbar for webkit browsers */
@media (min-width: 768px) {
    ::-webkit-scrollbar {
        width: 8px;
    }
    
    ::-webkit-scrollbar-track {
        background: var(--bg-gray-100);
    }
    
    ::-webkit-scrollbar-thumb {
        background: var(--primary-color);
        border-radius: 4px;
    }
    
    ::-webkit-scrollbar-thumb:hover {
        background: var(--secondary-color);
    }
}

/* Focus management for responsive design */
@media (max-width: 767.98px) {
    .skip-link {
        left: var(--spacing-2);
        right: var(--spacing-2);
        width: auto;
    }
    
    .skip-link:focus {
        top: var(--spacing-2);
    }
}

/* Adaptive typography for very small screens */
@media (max-width: 320px) {
    html {
        font-size: 14px; /* Reduce base font size */
    }
    
    .hero h1 {
        font-size: var(--font-size-2xl);
        line-height: 1.1;
    }
    
    .hero p {
        font-size: var(--font-size-base);
    }
    
    .post-title {
        font-size: var(--font-size-lg);
        line-height: 1.2;
    }
    
    .main-content {
        padding: var(--spacing-6) var(--spacing-3);
    }
    
    .blog-post {
        padding: var(--spacing-4);
    }
}

/* Aspect ratio utilities for responsive images */
.aspect-ratio {
    position: relative;
    width: 100%;
}

.aspect-ratio::before {
    content: '';
    display: block;
    padding-top: var(--aspect-ratio, 56.25%); /* 16:9 default */
}

.aspect-ratio > * {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Responsive utilities */
.mobile-only {
    display: block;
}

.desktop-only {
    display: none;
}

@media (min-width: 768px) {
    .mobile-only {
        display: none;
    }
    
    .desktop-only {
        display: block;
    }
}

/* Flexible grid system for content */
.responsive-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-6);
}

@media (max-width: 575.98px) {
    .responsive-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
}