@media screen and (max-width: 1440px) {
    .container {
        max-width: 1200px;
    }
    
    .footer-grid {
        grid-template-columns: 1.5fr repeat(3, 1fr);
        gap: 40px;
    }
}

@media screen and (max-width: 1200px) {
    .header-container {
        padding: 0 20px;
    }
    
    .nav-menu {
        gap: 4px;
    }
    
    .nav-link {
        padding: 8px 14px;
        font-size: 12px;
    }
    
    .search-input {
        width: 160px;
    }
    
    .search-input:focus {
        width: 200px;
    }
    
    .hero-stats {
        gap: 32px;
    }
    
    .stat-value {
        font-size: 36px;
    }
    
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .experts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .activity-grid {
        gap: 24px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    
    .footer-brand {
        grid-column: span 2;
        max-width: 100%;
    }
}

@media screen and (max-width: 992px) {
    html {
        font-size: 15px;
    }
    
    .main-header {
        background: rgba(10, 10, 15, 0.95);
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-primary);
        flex-direction: column;
        align-items: stretch;
        padding: 24px;
        gap: 8px;
        transform: translateX(-100%);
        transition: var(--transition-normal);
        overflow-y: auto;
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-link {
        padding: 16px 20px;
        font-size: 14px;
        border-radius: var(--radius-md);
        background: var(--bg-card);
        border: 1px solid var(--border-color);
    }
    
    .nav-link:hover,
    .nav-link.active {
        background: rgba(0, 245, 255, 0.1);
        border-color: var(--neon-cyan);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .search-box {
        display: none;
    }
    
    .header-actions .btn {
        display: none;
    }
    
    .hero-section {
        padding: 100px 20px 60px;
    }
    
    .hero-title {
        font-size: clamp(28px, 5vw, 48px);
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
        gap: 24px;
    }
    
    .stat-item {
        min-width: 100px;
    }
    
    .section {
        padding: 80px 20px;
    }
    
    .section-title {
        font-size: clamp(24px, 3.5vw, 36px);
    }
    
    .categories-grid,
    .experts-grid,
    .resources-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .activity-grid {
        grid-template-columns: 1fr;
    }
    
    .activity-sidebar {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .sidebar-card {
        flex: 1;
        min-width: 280px;
    }
    
    .cta-section {
        padding: 60px 20px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-brand {
        grid-column: span 1;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .page-header {
        padding: 120px 20px 40px;
    }
    
    .podium-container {
        flex-wrap: wrap;
        gap: 20px;
    }
    
    .podium-stand {
        width: 120px;
    }
    
    .ranking-item {
        flex-wrap: wrap;
        gap: 16px;
    }
    
    .ranking-stats {
        width: 100%;
        justify-content: flex-start;
        padding-top: 16px;
        border-top: 1px solid var(--border-color);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .header-container {
        height: 60px;
        padding: 0 16px;
    }
    
    .logo-icon {
        width: 38px;
        height: 38px;
        font-size: 16px;
    }
    
    .logo-text {
        font-size: 14px;
    }
    
    .nav-menu {
        top: 60px;
    }
    
    .hero-section {
        min-height: auto;
        padding: 80px 16px 40px;
    }
    
    .hero-badge {
        font-size: 10px;
        padding: 6px 14px;
    }
    
    .hero-title {
        font-size: clamp(24px, 4vw, 36px);
        margin-bottom: 16px;
    }
    
    .hero-subtitle {
        font-size: 14px;
        margin-bottom: 32px;
    }
    
    .hero-stats {
        gap: 20px;
        margin-bottom: 32px;
    }
    
    .stat-value {
        font-size: 28px;
    }
    
    .stat-label {
        font-size: 11px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .hero-scroll {
        display: none;
    }
    
    .section {
        padding: 60px 16px;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .section-tag {
        font-size: 10px;
    }
    
    .section-title {
        font-size: clamp(20px, 3vw, 28px);
    }
    
    .section-desc {
        font-size: 14px;
    }
    
    .categories-grid,
    .experts-grid,
    .resources-grid {
        grid-template-columns: 1fr;
    }
    
    .category-card,
    .expert-card,
    .resource-card {
        padding: 20px;
    }
    
    .category-icon {
        width: 50px;
        height: 50px;
        font-size: 24px;
    }
    
    .expert-header {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .expert-avatar {
        width: 70px;
        height: 70px;
    }
    
    .expert-badges {
        justify-content: center;
    }
    
    .expert-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }
    
    .expert-stat {
        padding: 8px;
    }
    
    .expert-stat-value {
        font-size: 16px;
    }
    
    .activity-item {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .activity-icon {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
    
    .activity-sidebar {
        flex-direction: column;
    }
    
    .sidebar-card {
        min-width: 100%;
    }
    
    .cta-section {
        padding: 48px 16px;
    }
    
    .cta-title {
        font-size: clamp(22px, 3vw, 32px);
    }
    
    .cta-desc {
        font-size: 14px;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-actions .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .main-footer {
        padding: 60px 16px 32px;
    }
    
    .footer-grid {
        gap: 24px;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-column h4 {
        margin-bottom: 16px;
    }
    
    .footer-links {
        gap: 10px;
    }
    
    .footer-legal {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }
    
    .page-header {
        padding: 100px 16px 32px;
    }
    
    .page-title {
        font-size: clamp(24px, 4vw, 36px);
    }
    
    .filter-bar {
        flex-direction: column;
        align-items: stretch;
        padding: 16px;
    }
    
    .filter-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-select {
        width: 100%;
    }
    
    .filter-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
    }
    
    .podium-container {
        flex-direction: column;
        align-items: center;
    }
    
    .podium-item {
        width: 100%;
        max-width: 280px;
    }
    
    .podium-stand {
        width: 100%;
    }
    
    .podium-item.first .podium-stand {
        height: 100px;
    }
    
    .podium-item.second .podium-stand {
        height: 80px;
    }
    
    .podium-item.third .podium-stand {
        height: 60px;
    }
    
    .ranking-item {
        padding: 16px;
    }
    
    .ranking-position {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }
    
    .ranking-avatar {
        width: 40px;
        height: 40px;
    }
    
    .ranking-stats {
        gap: 20px;
    }
    
    .ranking-stat-value {
        font-size: 16px;
    }
    
    .topic-item {
        flex-direction: column;
        padding: 16px;
    }
    
    .topic-avatar {
        width: 40px;
        height: 40px;
    }
    
    .topic-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .topic-meta {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: 32px 20px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .team-card {
        padding: 24px;
    }
    
    .team-avatar {
        width: 100px;
        height: 100px;
    }
    
    .contact-form {
        padding: 24px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
    
    .page-btn {
        width: 36px;
        height: 36px;
        font-size: 13px;
    }
}

@media screen and (max-width: 576px) {
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .stat-item {
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 12px 16px;
        background: var(--bg-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-color);
    }
    
    .stat-value {
        font-size: 24px;
    }
    
    .stat-label {
        font-size: 12px;
    }
    
    .expert-stats {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .expert-stat {
        display: flex;
        justify-content: space-between;
        align-items: center;
        text-align: left;
    }
    
    .expert-stat-value {
        font-size: 18px;
    }
    
    .expert-stat-label {
        font-size: 12px;
    }
    
    .resource-image {
        height: 150px;
    }
    
    .ranking-stats {
        gap: 16px;
    }
    
    .ranking-stat {
        text-align: left;
    }
}

@media screen and (max-width: 375px) {
    .header-container {
        padding: 0 12px;
    }
    
    .logo-text {
        font-size: 12px;
    }
    
    .section {
        padding: 48px 12px;
    }
    
    .category-card,
    .expert-card,
    .resource-card {
        padding: 16px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 12px;
    }
    
    .btn-lg {
        padding: 12px 24px;
    }
}

@media (hover: none) {
    .category-card:hover,
    .expert-card:hover,
    .resource-card:hover,
    .team-card:hover {
        transform: none;
    }
    
    .nav-link:hover::before {
        width: 0;
    }
    
    .btn:hover {
        transform: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .hero-grid {
        animation: none;
    }
    
    .particle {
        display: none;
    }
}

@media (prefers-color-scheme: light) {
    :root {
        --bg-primary: #f5f5f7;
        --bg-secondary: #ffffff;
        --bg-tertiary: #e8e8ed;
        --bg-card: #ffffff;
        --bg-card-hover: #f5f5f7;
        
        --text-primary: #1a1a2e;
        --text-secondary: #4a4a5a;
        --text-muted: #8a8a9a;
        
        --border-color: #d8d8e0;
        --border-glow: rgba(0, 136, 255, 0.3);
        
        --shadow-card: 0 4px 30px rgba(0, 0, 0, 0.08);
    }
    
    body::before {
        background: 
            radial-gradient(ellipse at 20% 20%, rgba(0, 136, 255, 0.08) 0%, transparent 50%),
            radial-gradient(ellipse at 80% 80%, rgba(191, 0, 255, 0.08) 0%, transparent 50%);
    }
    
    .main-header {
        background: rgba(255, 255, 255, 0.9);
    }
    
    .main-header.scrolled {
        background: rgba(255, 255, 255, 0.95);
    }
}

@media print {
    .main-header,
    .hero-bg,
    .hero-particles,
    .hero-scroll,
    .cta-section,
    .main-footer {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .section {
        padding: 20px;
        page-break-inside: avoid;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
}