/* Responsive Design - Mobile-First Approach */

/* Extra Small Devices (Portrait Phones, 320px and up) */
@media (max-width: 575.98px) {
    :root {
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.5rem;
        --font-size-2xl: 1.25rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    /* Header Mobile Adjustments */
    .nav-container {
        padding: 0 var(--spacing-sm);
    }

    .nav-links {
        display: none; /* Hidden by default, shown via mobile menu */
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .search-toggle,
    .theme-toggle {
        padding: var(--spacing-xs);
    }

    /* Hero Section Mobile */
    .hero-section {
        min-height: 50vh;
        padding: var(--spacing-lg) var(--spacing-sm);
        text-align: center;
    }

    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-lg);
    }

    .hero-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .btn {
        width: 100%;
        max-width: 200px;
    }

    /* Search Bar Mobile */
    .search-container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .search-input,
    .search-submit {
        border-radius: var(--radius-md);
        width: 100%;
    }

    /* News Grid Mobile */
    .news-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    /* Categories Mobile */
    .categories-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .category-card {
        padding: var(--spacing-lg);
    }

    /* Newsletter Mobile */
    .newsletter-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: center;
    }

    .form-group {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .newsletter-input,
    .newsletter-submit {
        width: 100%;
        border-radius: var(--radius-md);
    }

    /* Footer Mobile */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: center;
    }

    .footer-section {
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    /* Modal Mobile */
    .alert-content {
        margin: var(--spacing-sm);
        padding: var(--spacing-lg);
    }

    .alert-footer {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    /* AdSense Mobile */
    .header-ad,
    .footer-ad {
        height: 50px;
    }

    .sidebar-ad {
        height: 250px;
    }

    .content-ad {
        height: 200px;
    }
}

/* Small Devices (Landscape Phones, 576px and up) */
@media (min-width: 576px) and (max-width: 767.98px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Medium Devices (Tablets, 768px and up) */
@media (min-width: 768px) and (max-width: 991.98px) {
    .nav-links {
        gap: var(--spacing-md);
    }

    .nav-link {
        font-size: var(--font-size-sm);
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Large Devices (Desktops, 992px and up) */
@media (min-width: 992px) and (max-width: 1199.98px) {
    .news-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Extra Large Devices (Large Desktops, 1200px and up) */
@media (min-width: 1200px) {
    .container {
        max-width: 1400px;
    }

    .news-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    .nav-link,
    .btn,
    .category-link,
    .filter-btn {
        min-height: 44px;
        min-width: 44px;
        padding: var(--spacing-sm) var(--spacing-md);
    }

    /* Remove hover effects that don't work on touch */
    .category-card:hover::before {
        transform: none;
    }

    .btn-primary:hover {
        transform: none;
    }

    /* Optimize for touch scrolling */
    .main-content {
        -webkit-overflow-scrolling: touch;
        scroll-behavior: smooth;
    }
}

/* High Resolution Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    /* Sharper borders and shadows */
    .category-card,
    .alert-content,
    .btn {
        border-width: 0.5px;
    }

    /* Enhanced gradients */
    .hero-title {
        background: linear-gradient(135deg, var(--text-primary), var(--accent-color));
        -webkit-background-clip: text;
        background-clip: text;
    }
}

/* Print Media */
@media print {
    /* Hide interactive elements */
    .search-toggle,
    .theme-toggle,
    .mobile-menu-toggle,
    .newsletter-form,
    .social-links,
    .adsense-placeholder {
        display: none !important;
    }

    /* Optimize colors for print */
    body {
        background: white !important;
        color: black !important;
    }

    .category-card,
    .alert-content {
        border: 1px solid #ccc !important;
        background: white !important;
    }

    /* Ensure text is readable */
    h1, h2, h3, h4, h5, h6 {
        color: black !important;
    }

    p, .hero-subtitle, .category-description {
        color: #333 !important;
    }
}

/* Dark Mode Specific Responsive Adjustments */
@media (prefers-color-scheme: dark) and (max-width: 768px) {
    /* Enhanced contrast for mobile dark mode */
    .nav-link.active {
        background: rgba(79, 70, 229, 0.2);
        border: 1px solid rgba(79, 70, 229, 0.3);
    }

    .category-card {
        border-color: rgba(255, 255, 255, 0.15);
    }

    .btn-primary {
        background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
        box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
    }
}

/* Reduced Motion Responsive Adjustments */
@media (prefers-reduced-motion: reduce) and (max-width: 768px) {
    /* Disable animations that might cause issues */
    .ticker-content,
    .hero-stars,
    .galaxy-spiral {
        animation: none !important;
    }

    /* Static positioning for better accessibility */
    .shooting-star,
    .particle,
    .meteor {
        opacity: 0.2 !important;
    }
}

/* Orientation Changes */
@media (orientation: landscape) and (max-height: 500px) {
    /* Optimize for landscape mobile */
    .hero-section {
        min-height: 70vh;
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .main-content {
        margin-top: 80px;
    }

    .section-header {
        margin-bottom: var(--spacing-lg);
    }
}

/* Container Queries (Future-proof) */
@container (max-width: 600px) {
    .newsletter-content {
        grid-template-columns: 1fr;
    }
}

/* Focus Management for Keyboard Navigation */
@media (prefers-reduced-motion: no-preference) {
    /* Enhanced focus indicators */
    *:focus-visible {
        outline: 2px solid var(--primary-color);
        outline-offset: 2px;
        transition: outline-color var(--transition-fast);
    }

    /* Skip link for screen readers */
    .skip-link {
        position: absolute;
        top: -40px;
        left: 6px;
        background: var(--primary-color);
        color: var(--text-inverse);
        padding: 8px;
        text-decoration: none;
        border-radius: var(--radius-sm);
        z-index: var(--z-tooltip);
    }

    .skip-link:focus {
        top: 6px;
    }
}

/* Performance Optimizations */
@media (max-width: 768px) {
    /* Reduce animation complexity on mobile */
    .stars,
    .space-dust,
    .nebula {
        animation-duration: 2s;
    }

    /* Limit particle effects */
    .particle:nth-child(n+6) {
        display: none;
    }

    .shooting-star:nth-child(n+4) {
        display: none;
    }
}

/* Accessibility Enhancements */
@media (prefers-contrast: high) {
    /* Higher contrast for better visibility */
    :root {
        --border-primary: rgba(255, 255, 255, 0.5);
        --text-secondary: rgba(255, 255, 255, 0.9);
        --bg-card: rgba(20, 20, 31, 0.95);
    }

    .btn {
        border: 2px solid currentColor;
    }

    .category-card {
        border-width: 2px;
    }
}

/* Motion Preferences */
@media (prefers-reduced-motion: reduce) {
    /* Disable all animations */
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    /* Static positioning for reduced motion */
    .category-card:hover {
        transform: none;
    }

    .btn-primary:hover {
        transform: none;
    }
}