/* Responsive Design */

/* Tablet Styles */
@media (max-width: 1024px) {
    .main-content {
        margin-left: 280px;
        padding: 30px;
    }
    
    .sidebar {
        width: 280px;
    }
    
    .hero-section h1 {
        font-size: 40px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 20px;
    }
    
    .cta-section {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-button {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

/* Mobile Styles */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
        z-index: 1002;
    }
    
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        padding: 20px;
        padding-top: 80px;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-section {
        padding: 40px 20px;
    }
    
    .hero-section h1 {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .content-placeholder {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .placeholder-card {
        padding: 20px;
    }
    
    .contributors-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .content-section h2 {
        font-size: 28px;
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .brand-section h1 {
        font-size: 20px;
    }
    
    .brand-logo {
        font-size: 40px;
    }
    
    .control-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .topics-preview {
        justify-content: center;
    }
}

/* Small Mobile Styles */
@media (max-width: 480px) {
    .main-content {
        padding: 15px;
        padding-top: 70px;
    }
    
    .hero-section {
        padding: 30px 15px;
    }
    
    .hero-section h1 {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 14px;
    }
    
    .stat-card {
        padding: 15px;
    }
    
    .stat-card i {
        font-size: 28px;
    }
    
    .stat-number {
        font-size: 24px;
    }
    
    .placeholder-card {
        padding: 15px;
    }
    
    .content-section h2 {
        font-size: 24px;
    }
    
    .cta-button {
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .sidebar {
        width: 100%;
    }
    
    .sidebar-content {
        padding: 15px;
    }
    
    .brand-section {
        margin-bottom: 20px;
        padding: 15px 0;
    }
    
    .nav-link {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .social-section {
        margin-top: 20px;
    }
}

/* Landscape Mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .hero-section {
        padding: 30px 20px;
    }
    
    .hero-section h1 {
        font-size: 28px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .brand-logo,
    .stat-card i,
    .contributor-avatar i,
    .placeholder-avatar i {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* Print Styles */
@media print {
    .sidebar,
    .mobile-menu-toggle,
    .control-buttons,
    .social-section,
    .cta-section {
        display: none;
    }
    
    .main-content {
        margin-left: 0;
        padding: 0;
    }
    
    .content-section {
        display: block !important;
        page-break-inside: avoid;
    }
    
    .hero-section {
        background: none;
        border: 1px solid #ccc;
    }
    
    .stat-card,
    .placeholder-card,
    .contributor-card {
        border: 1px solid #ccc;
        box-shadow: none;
    }
}

/* Accessibility - Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --text-color: #000000;
        --heading-color: #000000;
        --card-bg: #ffffff;
        --main-bg: #ffffff;
    }
    
    .nav-link.active,
    .cta-button.primary {
        background: #000000;
        color: #ffffff;
    }
    
    .stat-card,
    .placeholder-card,
    .contributor-card {
        border: 2px solid #000000;
    }
}