/* Responsive Design */

/* Large Screens */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 0 30px;
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
}

/* Tablet Styles */
@media (max-width: 768px) {
    /* Global mobile styles */
    body {
        font-size: 14px;
        overflow-x: hidden;
    }
    
    /* Matrix rain on mobile - ВКЛЮЧЕН */
    #matrix-rain {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        width: 100vw !important;
        height: 100vh !important;
        z-index: -1 !important;
        opacity: 0.6 !important;
        display: block !important;
        pointer-events: none !important;
    }
    /* Navigation */
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: 
            linear-gradient(135deg, 
                rgba(0, 20, 30, 0.95) 0%, 
                rgba(10, 30, 50, 0.9) 25%,
                rgba(0, 40, 60, 0.85) 50%,
                rgba(15, 25, 45, 0.9) 75%,
                rgba(5, 15, 35, 0.95) 100%
            ),
            radial-gradient(circle at 30% 70%, rgba(0, 255, 255, 0.15) 0%, transparent 60%),
            radial-gradient(circle at 70% 30%, rgba(0, 255, 255, 0.1) 0%, transparent 60%);
        backdrop-filter: blur(25px) saturate(180%);
        -webkit-backdrop-filter: blur(25px) saturate(180%);
        border-top: 2px solid rgba(0, 255, 255, 0.4);
        border-left: 1px solid rgba(0, 255, 255, 0.2);
        border-right: 1px solid rgba(0, 255, 255, 0.2);
        box-shadow: 
            0 -10px 30px rgba(0, 0, 0, 0.8),
            inset 0 1px 0 rgba(255, 255, 255, 0.1),
            0 0 20px rgba(0, 255, 255, 0.1);
        flex-direction: column;
        gap: 0;
        padding: 2rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
        z-index: 9999;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu.active::after {
        content: "Steam Activation Helper";
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        font-size: 3rem;
        font-weight: bold;
        color: rgba(0, 255, 255, 0.15);
        text-shadow: 
            0 0 20px rgba(0, 255, 255, 0.3),
            0 0 40px rgba(0, 255, 255, 0.2),
            0 0 60px rgba(0, 255, 255, 0.1);
        z-index: -1;
        pointer-events: none;
        white-space: nowrap;
        background: linear-gradient(45deg, 
            rgba(0, 255, 255, 0.1) 0%,
            rgba(0, 255, 255, 0.2) 25%,
            rgba(0, 255, 255, 0.1) 50%,
            rgba(0, 255, 255, 0.2) 75%,
            rgba(0, 255, 255, 0.1) 100%);
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
        animation: holographicPulse 3s ease-in-out infinite;
    }
    
    @keyframes holographicPulse {
        0%, 100% {
            opacity: 0.1;
            transform: translate(-50%, -50%) scale(1);
        }
        50% {
            opacity: 0.25;
            transform: translate(-50%, -50%) scale(1.02);
        }
    }
    
    @keyframes menuGlassSlide {
        0% {
            transform: translateY(-100%);
            opacity: 0;
            backdrop-filter: blur(5px);
        }
        50% {
            backdrop-filter: blur(15px);
        }
        100% {
            transform: translateY(0);
            opacity: 1;
            backdrop-filter: blur(25px);
        }
    }
    
    .nav-link {
        padding: 1.5rem;
        justify-content: flex-start;
        border: 1px solid rgba(0, 255, 255, 0.3);
        width: 100%;
        background: 
            linear-gradient(135deg, 
                rgba(0, 20, 30, 0.85) 0%, 
                rgba(10, 30, 50, 0.9) 25%,
                rgba(0, 40, 60, 0.85) 50%,
                rgba(15, 25, 45, 0.9) 75%,
                rgba(5, 15, 35, 0.85) 100%
            ),
            linear-gradient(135deg, 
                rgba(0, 255, 255, 0.15) 0%, 
                rgba(0, 255, 255, 0.08) 50%, 
                rgba(0, 255, 255, 0.15) 100%
            );
        backdrop-filter: blur(15px) saturate(150%);
        -webkit-backdrop-filter: blur(15px) saturate(150%);
        margin-bottom: 0.5rem;
        border-radius: 12px;
        transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        font-size: 1.1rem;
        font-weight: 500;
        position: relative;
        overflow: hidden;
        box-shadow: 
            0 4px 15px rgba(0, 0, 0, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.1);
    }
    
    .nav-link::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
        transition: left 0.5s ease;
    }
    
    .nav-link:hover::before {
        left: 100%;
    }
    
    .nav-link:hover,
    .nav-link.active {
        background: 
            linear-gradient(135deg, 
                rgba(0, 20, 30, 0.9) 0%, 
                rgba(10, 30, 50, 0.95) 25%,
                rgba(0, 40, 60, 0.9) 50%,
                rgba(15, 25, 45, 0.95) 75%,
                rgba(5, 15, 35, 0.9) 100%
            ),
            linear-gradient(135deg, 
                rgba(0, 255, 255, 0.25) 0%, 
                rgba(0, 255, 255, 0.35) 50%, 
                rgba(0, 255, 255, 0.25) 100%
            );
        border-color: rgba(0, 255, 255, 0.7);
        transform: translateX(10px) scale(1.02);
        color: #ffffff;
        text-shadow: 
            0 0 15px var(--neon-cyan),
            0 0 25px rgba(0, 255, 255, 0.5);
        box-shadow: 
            0 0 25px rgba(0, 255, 255, 0.4),
            0 8px 20px rgba(0, 0, 0, 0.4),
            inset 0 1px 0 rgba(255, 255, 255, 0.3);
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
    }
    
    .nav-link:last-child {
        border-bottom: none;
        margin-bottom: 0;
    }
    
    .nav-link i {
        margin-right: 1rem;
        font-size: 1.2rem;
        color: var(--neon-cyan);
    }
    
    .nav-toggle {
        display: flex;
    }
}

/* Desktop styles to override mobile for larger screens */
@media (min-width: 769px) {
    .nav-container {
        display: flex !important;
        align-items: center !important;
        justify-content: space-between !important;
        max-width: 1200px !important;
        margin: 0 auto !important;
        padding: 0 20px !important;
    }
    
    .nav-brand {
        display: flex !important;
        align-items: center !important;
        gap: 1rem !important;
    }
    
    .nav-menu {
        position: static !important;
        background: transparent !important;
        backdrop-filter: none !important;
        border: none !important;
        box-shadow: none !important;
        flex-direction: row !important;
        gap: 2rem !important;
        padding: 0 !important;
        transform: translateY(0) !important;
        opacity: 1 !important;
        visibility: visible !important;
        display: flex !important;
        margin-left: auto !important;
    }
    
    .nav-link {
        padding: 0.5rem 1rem !important;
        justify-content: center !important;
        border: none !important;
        width: auto !important;
        background: transparent !important;
        backdrop-filter: none !important;
        margin-bottom: 0 !important;
        border-radius: 8px !important;
        font-size: 1rem !important;
        font-weight: normal !important;
        box-shadow: none !important;
        color: var(--text-secondary) !important;
        text-decoration: none !important;
        transition: all var(--transition-fast) !important;
        position: relative !important;
    }
    
    .nav-link:hover,
    .nav-link.active {
        color: var(--neon-cyan) !important;
        background: var(--glass-bg) !important;
        border: 1px solid var(--glass-border) !important;
        box-shadow: var(--shadow-light) !important;
        text-shadow: 0 0 10px var(--neon-cyan) !important;
    }
    
    .nav-toggle {
        display: none !important;
    }
    
    /* Восстанавливаем грид расположение карточек для больших экранов */
    .guides-grid {
        grid-template-columns: 1fr 1fr !important;
        gap: 2rem !important;
    }
    
    .problems-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)) !important;
        gap: 2rem !important;
    }
    
    .contact-grid {
        grid-template-columns: 1fr 1fr !important;
        gap: 4rem !important;
    }
    
    .nav-toggle.active .hamburger-line:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .hamburger-line:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    /* Hero Section */
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-features {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .floating-card {
        bottom: 20px;
        right: 20px;
        max-width: 200px;
        padding: 1rem;
        transform: perspective(1000px) rotateY(0deg);
    }
    
    .floating-card i {
        font-size: 2.5rem;
        margin-bottom: 0.3rem;
    }
    
    .floating-card h3 {
        font-size: 1rem;
        margin-bottom: 0.3rem;
    }
    
    .floating-card p {
        font-size: 0.8rem;
    }
    
    /* Stats Grid */
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 1rem;
    }
    
    /* Sections */
    .section {
        padding: 3rem 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-header {
        margin-bottom: 3rem;
    }
    
    /* Guide Cards - только для мобильных */
    
    .guide-card:hover {
        transform: scale(1);
    }
    
    .card-header {
        padding: 1.5rem 1.5rem 1rem;
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .card-content {
        padding: 1.5rem;
    }
    
    .card-footer {
        flex-direction: column;
        gap: 0.5rem;
        align-items: center;
    }
    
    /* Problems Grid - только для мобильных */
    
    /* Games */
    .games-filter {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
    
    .games-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
    }
    
    .game-card:hover {
        transform: scale(1.02);
    }
    
    /* Contact - только для мобильных */
    
    .help-buttons {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 2rem;
    }
    
    .social-links {
        justify-content: center;
    }
}

/* Mobile Background Fix - Принудительно */
@media (max-width: 768px) {
    html {
        background: #0a0a0a !important;
    }
    
    body {
        background: linear-gradient(135deg, 
            #001420 0%, 
            #0a1e32 25%,
            #00283c 50%,
            #0f192d 75%,
            #050f23 100%
        ) !important;
        background-attachment: fixed !important;
        min-height: 100vh !important;
    }
    
    /* Добавляем паттерны поверх основного фона */
    body::after {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: 
            radial-gradient(circle at 20% 80%, rgba(0, 255, 255, 0.1) 0%, transparent 40%),
            radial-gradient(circle at 80% 20%, rgba(0, 255, 255, 0.08) 0%, transparent 40%),
            radial-gradient(circle at 40% 40%, rgba(0, 255, 255, 0.06) 0%, transparent 40%),
            radial-gradient(circle at 60% 80%, rgba(0, 255, 150, 0.04) 0%, transparent 40%);
        pointer-events: none;
        z-index: -1;
    }
    
    /* Усиливаем фон для всех основных элементов */
    .section {
        background: rgba(0, 20, 30, 0.3) !important;
        backdrop-filter: blur(10px) !important;
    }
}

/* Mobile Styles */
@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    /* Typography */
    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    /* Navigation */
    .nav-container {
        padding: 0 15px;
    }
    
    .nav-logo {
        width: 35px;
        height: 35px;
    }
    
    .brand-text {
        font-size: 1.3rem;
    }
    
    /* Buttons */
    .cyber-button {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .hero-buttons {
        width: 100%;
    }
    
    .cyber-button {
        width: 100%;
        justify-content: center;
    }
    
    /* Cards */
    .stat-card {
        padding: 1.5rem 1rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .stat-label {
        font-size: 1rem;
    }
    
    /* Guide Cards */
    .guide-card {
        margin: 0 -5px;
    }
    
    .activation-steps {
        gap: 1rem;
    }
    
    .step {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .step-number {
        align-self: flex-start;
    }
    
    /* Games */
    .games-grid {
        grid-template-columns: 1fr;
    }
    
    .game-image {
        height: 150px;
    }
    
    .game-placeholder {
        font-size: 3rem;
    }
    
    /* Contact Form */
    .contact-form-container {
        padding: 1.5rem;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 0.8rem;
        font-size: 1rem;
    }
    
    /* FAQ */
    .faq-question {
        padding: 1rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .faq-question h4 {
        font-size: 1rem;
    }
    
    /* Help Buttons */
    .help-btn {
        padding: 1rem;
        text-align: center;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-section ul {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }
    
    /* Loading Screen */
    .loading-content {
        padding: 0 1rem;
    }
    
    .logo-img {
        width: 60px;
        height: 60px;
    }
    
    .loading-bar {
        width: 250px;
    }
    
    /* Particles */
    #particles-container,
    #matrix-rain {
        display: none;
    }
}

/* Extra Small Screens */
@media (max-width: 320px) {
    .container {
        padding: 0 10px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .cyber-button {
        padding: 0.7rem 1rem;
        font-size: 0.8rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .nav-container {
        padding: 0 10px;
    }
    
    .brand-text {
        font-size: 1.1rem;
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .nav-logo,
    .logo-img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Landscape Mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .nav-menu {
        max-height: calc(100vh - 80px);
        overflow-y: auto;
    }
    
    .section {
        padding: 2rem 0;
    }
    
    .hero-content {
        margin-bottom: 3rem;
    }
    
    .loading-screen .loading-content {
        transform: scale(0.8);
    }
}

/* Print Styles */
@media print {
    .nav-toggle,
    .loading-screen,
    #particles-container,
    #matrix-rain,
    .cyber-button,
    .social-links {
        display: none !important;
    }
    
    .cyber-nav {
        position: static;
        background: transparent;
        border-bottom: 1px solid #ccc;
    }
    
    .main-content {
        margin-top: 0;
    }
    
    .section {
        display: block !important;
        page-break-inside: avoid;
    }
    
    .holographic-text,
    .neon-text {
        color: #000 !important;
        text-shadow: none !important;
        -webkit-text-fill-color: initial !important;
    }
    
    .glass-card,
    .guide-card,
    .problem-card,
    .contact-card {
        border: 1px solid #ccc;
        background: #fff;
        box-shadow: none;
    }
}



/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .floating-card {
        animation: none;
    }
    
    .holographic-text {
        animation: none;
    }
    
    #particles-container,
    #matrix-rain {
        display: none;
    }
    

}

/* High Contrast */
@media (prefers-contrast: high) {
    :root {
        --glass-bg: rgba(255, 255, 255, 0.2);
        --glass-border: rgba(255, 255, 255, 0.5);
        --text-secondary: #ffffff;
    }
    
    .cyber-button {
        border-width: 3px;
    }
    
    .holographic-text {
        -webkit-text-fill-color: var(--neon-cyan);
        color: var(--neon-cyan);
    }
}