/* ===================================
   Responsive & Cloudflare Optimizations
   =================================== */

/* Large Desktop */
@media (min-width: 1400px) {
    .container {
        max-width: 1320px;
    }
    
    .hero-title {
        font-size: 4rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
}

/* Desktop */
@media (max-width: 1399px) {
    .container {
        max-width: 1140px;
    }
}

/* Tablet Landscape */
@media (max-width: 1023px) {
    :root {
        --spacing-xl: 2.5rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 4rem;
    }
    
    .container {
        max-width: 960px;
        padding: 0 1.5rem;
    }
    
    .hero-title {
        font-size: 2.75rem;
    }
    
    .title-credentials {
        font-size: 1.25rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .about-stats {
        flex-direction: row;
        justify-content: space-between;
        gap: 1rem;
    }
    
    .stat-card {
        flex: 1;
    }
    
    .publications-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box {
        width: 100%;
    }
    
    .media-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .book-cover {
        height: 200px;
    }
}

/* Tablet Portrait */
@media (max-width: 767px) {
    :root {
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 2.5rem;
        --spacing-3xl: 3rem;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .section {
        padding: 2.5rem 0;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    /* Mobile Navigation */
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: rgba(254, 251, 246, 0.98);
        backdrop-filter: blur(8px);
        flex-direction: column;
        padding: 2rem;
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        border-top: 1px solid var(--color-border);
        z-index: 999;
        overflow-y: auto;
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-link {
        padding: 0.75rem;
        border-bottom: 1px solid var(--color-border-light);
        border-radius: 0;
    }
    
    .mobile-menu-toggle {
        display: block;
        color: var(--color-primary);
        padding: 0.5rem;
    }
    
    .hero {
        min-height: auto;
        padding: 100px 0 4rem;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .title-credentials {
        font-size: 1rem;
    }
    
    .hero-links {
        flex-direction: column;
        align-items: stretch;
    }
    
    .social-link {
        justify-content: center;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        justify-content: center;
    }
    
    .about-stats {
        flex-direction: column;
    }
    
    .timeline::before {
        left: 15px;
    }
    
    .timeline-item {
        padding-left: 60px;
        margin-bottom: 2rem;
    }
    
    .timeline-marker {
        left: 6px;
    }
    
    .timeline-content {
        padding: 1.25rem;
    }
    
    .publications-controls {
        gap: 1rem;
    }
    
    .year-filter {
        gap: 0.4rem;
    }
    
    .filter-btn {
        padding: 0.5rem 0.8rem;
        font-size: 0.8rem;
    }
    
    .publication-card,
    .media-card,
    .book-info {
        padding: 1.25rem;
    }
    
    .reviewer-grid {
        grid-template-columns: 1fr;
    }
    
    .books-grid {
        grid-template-columns: 1fr;
    }
    
    .media-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-socials {
        flex-direction: column;
        align-items: stretch;
    }
    
    .social-badge {
        justify-content: center;
    }
}

/* Mobile Small */
@media (max-width: 479px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .timeline-item {
        padding-left: 50px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .filter-btn {
        flex: 1 1 calc(33% - 0.5rem);
        min-width: 60px;
        font-size: 0.75rem;
        padding: 0.4rem 0.5rem;
    }
    
    .social-link {
        font-size: 0.85rem;
        padding: 0.5rem 0.9rem;
    }
    
    .social-link i {
        width: 14px;
        height: 14px;
    }
}

/* Landscape mobile */
@media (max-height: 600px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 100px 0 3rem;
    }
    
    .hero-title {
        font-size: 2rem;
        margin-bottom: 1rem;
    }
    
    .hero-links,
    .hero-cta {
        margin-bottom: 1.5rem;
    }
    
    .scroll-indicator {
        display: none;
    }
}

/* Print styles */
@media print {
    .navbar,
    .mobile-menu-toggle,
    .lang-toggle,
    .hero-cta,
    .scroll-indicator,
    .footer {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
        font-size: 12pt;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    .section {
        page-break-inside: avoid;
        padding: 1rem 0;
    }
    
    .publication-card,
    .media-card,
    .book-card,
    .timeline-content {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
        page-break-inside: avoid;
        background: white !important;
    }
    
    a {
        text-decoration: underline;
        color: #000 !important;
    }
    
    .tag {
        border: 1px solid #ccc;
        background: #f5f5f5 !important;
    }
    
    .stat-card,
    .about-content {
        background: white !important;
        border: 1px solid #ddd !important;
    }
}

/* Cloudflare Pages optimizations */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .nav-link,
    .btn,
    .filter-btn,
    .social-link,
    .social-badge {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }
    
    .timeline-content:hover,
    .publication-card:hover,
    .media-card:hover,
    .book-card:hover {
        transform: none !important;
    }
    
    .btn:active {
        transform: scale(0.98) !important;
    }
    
    .nav-link:active,
    .social-link:active {
        opacity: 0.7;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --color-border: #000;
        --color-text-muted: #000;
    }
    
    .navbar {
        background: white;
        border-bottom: 2px solid var(--color-primary);
    }
    
    .btn-outline {
        border-width: 2px;
    }
    
    .section-divider {
        height: 4px;
    }
}