/* Tablet Styles */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: var(--font-size-4xl);
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .code-editor {
        max-width: 400px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .about-stats {
        justify-content: center;
    }
}

/* Mobile Styles */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: var(--spacing-xl);
        box-shadow: var(--shadow-medium);
        transform: translateY(-100%);
        transition: transform var(--transition-normal);
        z-index: var(--z-dropdown);
    }
    
    .nav-menu.active {
        transform: translateY(0);
    }
    
    .nav-auth {
        margin-left: 0;
        margin-top: var(--spacing-lg);
        flex-direction: column;
        width: 100%;
    }
    
    .btn-login,
    .btn-signup {
        width: 100%;
        text-align: center;
        justify-content: center;
    }
    
    .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 {
        min-height: auto;
        padding: 120px 0 var(--spacing-3xl);
    }
    
    .hero-text h1 {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .section-header h2 {
        font-size: var(--font-size-3xl);
    }
    
    .course-filter {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: var(--spacing-sm);
    }
    
    .filter-btn {
        white-space: nowrap;
        min-width: auto;
    }
    
    .course-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .input-group {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .back-to-top {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        width: 45px;
        height: 45px;
    }
}

/* Small Mobile Styles */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .nav-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .hero-text h1 {
        font-size: var(--font-size-2xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
    }
    
    .section-header h2 {
        font-size: var(--font-size-2xl);
    }
    
    .section-header p {
        font-size: var(--font-size-base);
    }
    
    .course-card {
        padding: var(--spacing-lg);
    }
    
    .feature-card {
        padding: var(--spacing-lg);
    }
    
    .testimonial-card {
        padding: var(--spacing-lg);
    }
    
    .newsletter-content h2 {
        font-size: var(--font-size-3xl);
    }
    
    .about-image {
        width: 200px;
        height: 200px;
        font-size: 80px;
    }
    
    .code-editor {
        max-width: 100%;
        transform: none;
    }
    
    .floating-elements {
        display: none;
    }
}

/* High DPI / Retina Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero::before {
        background-size: 50% 50%;
    }
}

/* Landscape Mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 100px 0 var(--spacing-2xl);
    }
    
    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
        text-align: left;
    }
    
    .hero-buttons {
        justify-content: flex-start;
        flex-direction: row;
    }
    
    .hero-stats {
        flex-direction: row;
        gap: var(--spacing-xl);
        justify-content: flex-start;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .back-to-top,
    .loading-overlay,
    .floating-elements,
    .scroll-indicator {
        display: none !important;
    }
    
    .hero {
        background: none !important;
        color: black !important;
        min-height: auto;
    }
    
    .hero-text h1,
    .hero-subtitle,
    .hero-stats {
        color: black !important;
    }
    
    .btn-primary,
    .btn-secondary {
        border: 2px solid black !important;
        background: none !important;
        color: black !important;
    }
    
    .course-card,
    .feature-card,
    .testimonial-card {
        break-inside: avoid;
        box-shadow: none !important;
        border: 1px solid #ccc;
    }
    
    .footer {
        background: none !important;
        color: black !important;
    }
}

/* Reduced Motion */
@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;
    }
    
    .floating-icon {
        animation: none;
    }
    
    .scroll-indicator {
        animation: none;
    }
    
    .loading-spinner i {
        animation: none;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --primary-green: #00FF00;
        --text-primary: #000000;
        --text-secondary: #333333;
        --bg-primary: #FFFFFF;
        --bg-secondary: #F0F0F0;
    }
    
    .btn-primary,
    .btn-secondary,
    .btn-outline {
        border-width: 3px;
    }
    
    .course-card,
    .feature-card,
    .testimonial-card {
        border: 2px solid var(--text-primary);
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #ffffff;
        --text-secondary: #cccccc;
        --text-muted: #999999;
        --bg-primary: #1a1a1a;
        --bg-secondary: #2d2d2d;
        --shadow-light: 0 2px 10px rgba(255, 255, 255, 0.1);
        --shadow-medium: 0 4px 20px rgba(255, 255, 255, 0.15);
        --shadow-heavy: 0 8px 30px rgba(255, 255, 255, 0.2);
    }
    
    .navbar {
        background: rgba(26, 26, 26, 0.95);
        border-bottom-color: rgba(0, 208, 132, 0.2);
    }
    
    .course-card,
    .feature-card,
    .testimonial-card {
        background: black);
    }
    
    .search-box input {
        background: var(--bg-secondary);
        color: var(--text-primary);
        border-color: #444444;
    }
    
    .filter-btn {
        background: var(--bg-secondary);
        color: var(--text-primary);
        border-color: #444444;
    }
}

/* Focus Indicators for Accessibility */
@media (prefers-reduced-motion: no-preference) {
    .nav-link:focus,
    .btn-primary:focus,
    .btn-secondary:focus,
    .btn-outline:focus,
    .filter-btn:focus,
    .course-btn:focus,
    .back-to-top:focus {
        outline: 3px solid var(--primary-green);
        outline-offset: 2px;
    }
}

/* Large Desktop Styles */
@media (min-width: 1440px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-text h1 {
        font-size: 4rem;
    }
    
    .section-header h2 {
        font-size: 3.5rem;
    }
    
    .course-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Ultra Wide Screens */
@media (min-width: 1920px) {
    .container {
        max-width: 1600px;
    }
    
    .course-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}