/* ===================================
   Responsive Design
   =================================== */

/* Large Screens */
@media (max-width: 1200px) {
    :root {
        --spacing-xxl: 3rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
}

/* Tablets */
@media (max-width: 992px) {
    :root {
        --spacing-xl: 2.5rem;
        --spacing-xxl: 2.5rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    /* Navigation */
    .nav-menu {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        background-color: rgba(255, 255, 255, 0.98);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
        flex-direction: column;
        gap: 0;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        transition: all 0.3s ease;
        pointer-events: none;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-list {
        flex-direction: column;
        width: 100%;
        gap: 0;
    }
    
    .nav-link {
        display: block;
        padding: var(--spacing-md);
        text-align: center;
    }
    
    .nav-actions {
        margin-top: var(--spacing-md);
        padding-top: var(--spacing-md);
        border-top: 1px solid var(--color-border);
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    /* Hero */
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    /* Grid Layouts */
    .posts-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--spacing-lg);
    }
    
    .about-preview-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    /* Typography */
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.875rem; }
    h3 { font-size: 1.375rem; }
    
    .page-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .post-title {
        font-size: 2.5rem;
    }
    
    .about-text h1,
    .contact-info h1 {
        font-size: 2.5rem;
    }
}

/* Mobile Devices */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
        --spacing-xxl: 2rem;
    }
    
    html {
        font-size: 15px;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .container-small {
        padding: 0 var(--spacing-md);
    }
    
    /* Hero */
    .hero {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    /* Sections */
    .featured-posts,
    .blog-posts,
    .about-section,
    .contact-section {
        padding: var(--spacing-xl) 0;
    }
    
    .page-header {
        padding: var(--spacing-xl) 0 var(--spacing-lg) 0;
    }
    
    /* Post Grid */
    .posts-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    /* Post Card */
    .post-card-image {
        height: 200px;
    }
    
    .post-card-content {
        padding: var(--spacing-md);
    }
    
    .post-card-title {
        font-size: 1.25rem;
    }
    
    /* Blog Filter */
    .filter-tabs {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: var(--spacing-xs);
    }
    
    .filter-tab {
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    /* Post Article */
    .post-article {
        padding: var(--spacing-lg) 0;
    }
    
    .post-title {
        font-size: 2rem;
    }
    
    .post-body {
        font-size: 1rem;
    }
    
    .post-meta {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .share-buttons {
        flex-wrap: wrap;
    }
    
    /* Comments */
    .comment-form {
        padding: var(--spacing-md);
    }
    
    .comment {
        padding: var(--spacing-md);
    }
    
    /* About & Contact */
    .about-image,
    .about-preview-image {
        order: -1;
    }
    
    .contact-details {
        margin-top: var(--spacing-lg);
    }
    
    .contact-form-wrapper {
        padding: var(--spacing-lg);
    }
    
    /* Forms */
    .form-group {
        margin-bottom: var(--spacing-md);
    }
    
    /* Typography */
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.25rem; }
    h4 { font-size: 1.125rem; }
    
    .page-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .lead {
        font-size: 1.125rem;
    }
    
    .about-text h1,
    .contact-info h1 {
        font-size: 2rem;
    }
    
    /* Buttons */
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
    }
    
    /* Footer */
    .footer {
        padding: var(--spacing-lg) 0;
    }
    
    .footer-social {
        gap: var(--spacing-sm);
    }
}

/* Small Mobile Devices */
@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .container,
    .container-small {
        padding: 0 var(--spacing-sm);
    }
    
    /* Navigation */
    .navbar {
        padding: var(--spacing-sm) 0;
    }
    
    .nav-brand .logo {
        font-size: 1.25rem;
    }
    
    .language-switcher {
        padding: 0.5rem 0.75rem;
        font-size: 0.813rem;
    }
    
    /* Hero */
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
    }
    
    /* Sections */
    .section-header {
        margin-bottom: var(--spacing-lg);
    }
    
    /* Post Cards */
    .post-card-image {
        height: 180px;
    }
    
    .post-card-meta {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    /* Post Article */
    .post-title {
        font-size: 1.75rem;
    }
    
    .post-image-wrapper {
        margin-left: calc(-1 * var(--spacing-sm));
        margin-right: calc(-1 * var(--spacing-sm));
        border-radius: 0;
    }
    
    .author-avatar {
        width: 40px;
        height: 40px;
    }
    
    /* Share Buttons */
    .share-btn {
        width: 42px;
        height: 42px;
    }
    
    /* Typography */
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.125rem; }
    
    .page-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .page-subtitle,
    .section-subtitle {
        font-size: 1rem;
    }
    
    .about-text h1,
    .contact-info h1 {
        font-size: 1.75rem;
    }
}

/* Landscape Orientation on Mobile */
@media (max-height: 600px) and (orientation: landscape) {
    .hero {
        padding: var(--spacing-lg) 0;
    }
    
    .page-header {
        padding: var(--spacing-lg) 0;
    }
    
    .nav-menu {
        max-height: calc(100vh - 73px);
        overflow-y: auto;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .nav-toggle,
    .language-switcher,
    .filter-tabs,
    .share-buttons,
    .comment-form,
    .footer-social,
    .btn {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
    
    .post-title {
        font-size: 24pt;
    }
    
    a {
        color: #000;
        text-decoration: underline;
    }
    
    img {
        max-width: 100%;
        page-break-inside: avoid;
    }
}

/* High DPI Screens */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* Dark Mode Support (Optional - can be activated later) */
@media (prefers-color-scheme: dark) {
    /* Dark mode styles can be added here if needed */
}