/* InstantGames.top Design System - Neon Arcade Theme */
/* Extracted from index.html on 2025-12-08 */

:root {
            /* Cyberpunk / Neon Arcade Theme */
            --primary-color: #00f2ff; /* Electric Cyan */
            --secondary-color: #ff00ff; /* Neon Magenta */
            --accent-color: #7000ff; /* Deep Purple */
            
            --bg-color: #0f172a; /* Midnight Blue */
            --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
            
            --text-color: #e2e8f0;
            --text-secondary: #94a3b8;
            
            --card-bg: rgba(30, 41, 59, 0.6); /* Glassy */
            --card-border: 1px solid rgba(255, 255, 255, 0.1);
            
            --header-bg: rgba(15, 23, 42, 0.85);
            --header-text: #f8fafc;
            
            --footer-bg: #020617;
            --footer-text: #94a3b8;
            
            --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
            --glow-primary: 0 0 20px rgba(0, 242, 255, 0.4);
            --glow-secondary: 0 0 20px rgba(255, 0, 255, 0.4);
            
            --border-radius: 16px;
            --font-display: 'Orbitron', sans-serif;
            --font-body: 'Outfit', sans-serif;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            background: var(--bg-gradient);
            background-attachment: fixed;
            color: var(--text-color);
            font-family: var(--font-body);
            line-height: 1.6;
            min-height: 100vh;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-display);
            letter-spacing: 1px;
            color: #fff;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }

        /* Header styles */
        header {
            background-color: var(--header-bg);
            color: var(--header-text);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .header-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            font-family: var(--font-display);
            display: flex;
            align-items: center;
            text-shadow: 0 0 10px rgba(0, 242, 255, 0.3);
        }

        .logo i {
            color: var(--primary-color);
            margin-right: 12px;
            filter: drop-shadow(0 0 5px var(--primary-color));
        }
        
        .logo span {
            background: linear-gradient(to right, #fff, var(--primary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-links {
            display: flex;
            list-style: none;
        }

        .nav-links li {
            margin-left: 30px;
        }

        .nav-links a {
            padding: 0.5rem 0;
            position: relative;
            font-weight: 500;
            font-size: 1.05rem;
            color: var(--text-secondary);
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-color);
            transition: width 0.3s ease;
            box-shadow: 0 0 8px var(--primary-color);
        }

        .nav-links a:hover {
            color: var(--primary-color);
            text-shadow: 0 0 8px rgba(0, 242, 255, 0.4);
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }

        /* Mobile menu button */
        .menu-btn {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--primary-color);
        }

        /* Hero section */
        .hero {
            position: relative;
            background:
                linear-gradient(rgba(15, 23, 42, 0.8), rgba(15, 23, 42, 0.8)),
                url('images/fengmian.png') center/cover no-repeat;
            color: white;
            text-align: center;
            padding: 6rem 20px;
            min-height: 70vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at center, rgba(0, 242, 255, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-content {
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            text-shadow: 0 0 20px rgba(0, 242, 255, 0.5);
            line-height: 1.1;
        }

        .hero p {
            font-size: 1.4rem;
            margin-bottom: 2.5rem;
            color: #cbd5e1;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-button {
            display: inline-block;
            background: transparent;
            color: var(--primary-color);
            padding: 1rem 3rem;
            border-radius: 50px;
            font-weight: 700;
            font-family: var(--font-display);
            font-size: 1.2rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            border: 2px solid var(--primary-color);
            box-shadow: var(--glow-primary), inset var(--glow-primary);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .cta-button:hover {
            transform: translateY(-3px) scale(1.05);
            background: var(--primary-color);
            color: #000;
            box-shadow: 0 0 40px rgba(0, 242, 255, 0.6);
        }

        /* Game categories */
        .categories {
            padding: 3rem 20px;
            max-width: 1400px;
            margin: 0 auto;
            text-align: center;
        }

        .section-title {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: var(--text-color);
            position: relative;
            display: inline-block;
            text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
        }
        
        .section-title span {
            color: var(--secondary-color);
        }

        .section-title::after {
            content: '';
            display: block;
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            margin: 10px auto 0;
            border-radius: 2px;
            box-shadow: 0 0 10px rgba(0, 242, 255, 0.5);
        }

        .section-description {
            max-width: 700px;
            margin: 0 auto 3rem;
            color: var(--text-secondary);
            font-size: 1.1rem;
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 25px;
            margin-top: 30px;
        }

        .category-card {
            background-color: var(--card-bg);
            border: var(--card-border);
            border-radius: var(--border-radius);
            overflow: hidden;
            backdrop-filter: blur(10px);
            transition: all 0.3s ease;
        }
        
        .category-card:hover {
            transform: translateY(-8px);
            border-color: var(--secondary-color);
            box-shadow: var(--glow-secondary);
        }

        .category-icon {
            width: 100%;
            height: 160px;
            display: flex;
            justify-content: center;
            align-items: center;
            overflow: hidden;
            background: rgba(0, 0, 0, 0.2);
        }

        .category-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

        .category-card:hover .category-icon img {
            transform: scale(1.1);
        }

        .category-content {
            padding: 1.5rem;
            text-align: left;
        }

        .category-title {
            font-size: 1.4rem;
            font-family: var(--font-display);
            margin-bottom: 0.5rem;
            color: #fff;
        }

        .category-description {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        /* Featured games */
        .featured-games {
            position: relative;
            padding: 4rem 20px;
            background: linear-gradient(180deg, transparent, rgba(0,0,0,0.3), transparent);
        }

        .featured-container {
            max-width: 1400px;
            margin: 0 auto;
            text-align: center;
        }

        .games-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .game-card {
            background-color: var(--card-bg);
            border: var(--card-border);
            border-radius: var(--border-radius);
            overflow: hidden;
            backdrop-filter: blur(12px);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            position: relative;
            z-index: 1;
        }

        .game-card:hover {
            transform: translateY(-10px) scale(1.02);
            border-color: var(--primary-color);
            box-shadow: var(--glow-primary);
            z-index: 10;
        }

        .game-image {
            width: 100%;
            height: 220px;
            overflow: hidden;
            position: relative;
        }
        
        .game-image::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to bottom, transparent 60%, rgba(15, 23, 42, 0.9));
            pointer-events: none;
        }

        .game-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .game-card:hover .game-image img {
            transform: scale(1.15) rotate(1deg);
        }

        .game-content {
            padding: 1.8rem;
            text-align: left;
        }

        .game-title {
            font-size: 1.6rem;
            font-family: var(--font-display);
            margin-bottom: 0.5rem;
            color: #fff;
            text-shadow: 0 2px 4px rgba(0,0,0,0.5);
        }

        .game-description {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 1.2rem;
            line-height: 1.5;
        }
        
        .game-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 1rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1rem;
        }

        .game-rating {
            display: flex;
            align-items: center;
            color: #ffd700;
            font-weight: 600;
        }

        .game-rating i {
            margin-right: 5px;
            filter: drop-shadow(0 0 5px rgba(255, 215, 0, 0.5));
        }

        .play-button {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            color: var(--primary-color);
            padding: 0.6rem 1.5rem;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            border: 1px solid var(--primary-color);
            transition: all 0.3s;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .play-button:hover {
            background: var(--primary-color);
            color: #000;
            box-shadow: 0 0 15px rgba(0, 242, 255, 0.5);
        }
        
        .game-card:hover .play-button {
            background: var(--primary-color);
            color: #000;
        }

        /* Benefits section */
        .benefits {
            padding: 4rem 20px;
            max-width: 1400px;
            margin: 0 auto;
            text-align: center;
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .benefit-item {
            padding: 2.5rem;
            border-radius: var(--border-radius);
            background-color: var(--card-bg);
            border: var(--card-border);
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            transition: transform 0.3s;
            position: relative;
            overflow: hidden;
        }
        
        .benefit-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
            opacity: 0.7;
        }

        .benefit-item:hover {
            transform: translateY(-5px);
            background: rgba(30, 41, 59, 0.8);
        }

        .benefit-icon {
            font-size: 3rem;
            margin-bottom: 1.5rem;
            color: var(--secondary-color);
            filter: drop-shadow(0 0 10px rgba(255, 0, 255, 0.4));
        }

        .benefit-title {
            font-size: 1.5rem;
            font-family: var(--font-display);
            margin-bottom: 1rem;
            color: #fff;
        }

        .benefit-description {
            color: var(--text-secondary);
        }

        /* Footer */
        footer {
            background-color: var(--footer-bg);
            color: var(--footer-text);
            padding: 4rem 20px 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
        }

        .footer-logo {
            font-size: 1.8rem;
            font-family: var(--font-display);
            font-weight: bold;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            color: #fff;
        }

        .footer-logo i {
            color: var(--primary-color);
            margin-right: 12px;
        }

        .footer-description {
            margin-bottom: 1.5rem;
            opacity: 0.8;
            line-height: 1.7;
        }

        .footer-title {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            font-weight: 700;
            color: #fff;
            position: relative;
            display: inline-block;
        }
        
        .footer-title::after {
            content: '';
            display: block;
            width: 40px;
            height: 3px;
            background: var(--primary-color);
            margin-top: 8px;
            border-radius: 2px;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 1rem;
        }

        .footer-links a {
            opacity: 0.7;
            transition: all 0.3s;
            display: flex;
            align-items: center;
        }
        
        .footer-links a::before {
            content: '>';
            margin-right: 8px;
            color: var(--primary-color);
            font-size: 0.8rem;
            opacity: 0;
            transform: translateX(-10px);
            transition: all 0.3s;
        }

        .footer-links a:hover {
            opacity: 1;
            color: var(--primary-color);
            padding-left: 5px;
            text-shadow: 0 0 10px rgba(0, 242, 255, 0.3);
        }
        
        .footer-links a:hover::before {
            opacity: 1;
            transform: translateX(0);
        }

        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 1.5rem;
        }

        .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.05);
            transition: all 0.3s;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .social-links a:hover {
            background-color: var(--secondary-color);
            box-shadow: 0 0 15px var(--secondary-color);
            transform: translateY(-3px);
            border-color: transparent;
        }

        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 4rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            opacity: 0.6;
            font-size: 0.9rem;
        }

        /* Responsive design */
        @media (max-width: 768px) {
            .menu-btn {
                display: block;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: rgba(15, 23, 42, 0.95);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 2rem 0;
                box-shadow: 0 10px 30px rgba(0,0,0,0.5);
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }

            .nav-links.active {
                display: flex;
            }

            .nav-links li {
                margin: 0;
                text-align: center;
                width: 100%;
            }
            
            .nav-links a {
                display: block;
                padding: 1rem;
                font-size: 1.2rem;
            }

            .hero {
                min-height: 50vh;
                padding: 4rem 20px;
            }

            .hero h1 {
                font-size: 2.2rem;
            }

            .hero p {
                font-size: 1.1rem;
            }

            .section-title {
                font-size: 2rem;
            }
        }
        
        /* Filter Styles for Games */
        .filter-controls {
            margin: 2rem 0;
            text-align: center;
        }

        #filter-status {
            font-size: 1rem;
            color: var(--text-color);
            font-weight: 500;
            margin-left: 1rem;
        }

        .clear-filter-btn {
            background: linear-gradient(135deg, var(--primary-color) 0%, #2563eb 100%);
            color: #000;
            border: none;
            padding: 0.5rem 1.2rem;
            border-radius: 0.5rem;
            font-size: 0.9rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: var(--glow-primary);
        }

        .clear-filter-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 15px var(--primary-color);
        }
        
        /* Animation Classes */
        .game-card.filtered-out {
            opacity: 0;
            transform: scale(0.8);
            pointer-events: none;
            height: 0;
            margin: 0;
            padding: 0;
            overflow: hidden;
        }

        .game-card.filtered-in {
            animation: fadeIn 0.5s ease forwards;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* Scrollbar */
        ::-webkit-scrollbar {
            width: 10px;
        }

        ::-webkit-scrollbar-track {
            background: #0f172a;
        }

        ::-webkit-scrollbar-thumb {
            background: #334155;
            border-radius: 5px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-color);
        }

        /* Contact & Feedback Section */
        .contact-feedback {
            background: linear-gradient(180deg, rgba(30, 41, 59, 0.4) 0%, rgba(15, 23, 42, 1) 100%);
            padding: 4rem 20px;
            position: relative;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .contact-container {
            max-width: 1200px;
            margin: 0 auto;
            text-align: center;
        }

        .contact-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            margin-top: 3rem;
            align-items: start;
        }

        .contact-form-wrapper {
            background: var(--card-bg); /* Glassy */
            border-radius: 20px;
            padding: 2.5rem;
            box-shadow: var(--shadow);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .contact-form {
            text-align: left;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin-bottom: 1.5rem;
        }

        .form-group {
            display: flex;
            flex-direction: column;
        }

        .form-group label {
            font-weight: 600;
            color: var(--text-color);
            margin-bottom: 0.5rem;
            font-size: 0.9rem;
        }

        .required {
            color: var(--secondary-color);
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            background: rgba(15, 23, 42, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            padding: 1rem 1.2rem;
            font-size: 1rem;
            transition: all 0.3s ease;
            font-family: inherit;
            outline: none;
            color: #fff;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            background: rgba(15, 23, 42, 0.9);
            border-color: var(--primary-color);
            box-shadow: 0 0 10px rgba(0, 242, 255, 0.2);
            transform: translateY(-2px);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 120px;
        }

        .submit-btn {
            background: linear-gradient(135deg, var(--primary-color) 0%, #2563eb 100%);
            color: #fff;
            border: none;
            border-radius: 12px;
            padding: 1rem 2rem;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin: 2rem auto 0;
            min-width: 200px;
            justify-content: center;
            font-family: var(--font-display);
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 242, 255, 0.3);
        }

        .form-status {
            margin-top: 1rem;
            padding: 1rem;
            border-radius: 8px;
            text-align: center;
            font-weight: 500;
            display: none;
        }

        /* Contact Info */
        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .info-item {
            background: rgba(255, 255, 255, 0.03);
            border-radius: 16px;
            padding: 1.5rem;
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: transform 0.3s ease;
        }

        .info-item:hover {
            transform: translateY(-5px);
            background: rgba(255, 255, 255, 0.05);
            border-color: var(--primary-color);
        }

        .info-icon {
            background: linear-gradient(135deg, var(--primary-color) 0%, #2563eb 100%);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        }

        .info-content h3 {
            margin: 0 0 0.5rem 0;
            color: #fff;
            font-size: 1.1rem;
            font-family: var(--font-display);
        }

        .info-content p {
            margin: 0 0 0.3rem 0;
            color: var(--primary-color);
            font-weight: 500;
        }

        .info-content small {
            color: var(--text-secondary);
            font-size: 0.85rem;
        }
        
        @media (max-width: 968px) {
            .contact-content {
                grid-template-columns: 1fr;
            }
        }
    
        /* FAQ Section Styles */
        .faq {
            padding: 4rem 20px;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.9) 0%, rgba(30, 41, 59, 1) 100%);
        }

        .faq-container {
            max-width: 900px;
            margin: 3rem auto 0;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .faq-item {
            background: var(--card-bg);
            border: var(--card-border);
            border-radius: var(--border-radius);
            overflow: hidden;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .faq-item:hover {
            border-color: var(--primary-color);
            box-shadow: 0 0 15px rgba(0, 242, 255, 0.1);
        }

        .faq-item.active {
            background: rgba(30, 41, 59, 0.9);
            border-color: var(--primary-color);
            box-shadow: var(--glow-primary);
        }

        .faq-question {
            padding: 1.5rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.1rem;
            font-weight: 600;
            color: #fff;
            margin: 0;
            font-family: var(--font-display);
        }

        .faq-question::after {
            content: '+';
            font-size: 1.8rem;
            color: var(--primary-color);
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            line-height: 1;
        }

        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
            color: var(--secondary-color);
        }

        .faq-answer {
            padding: 0 1.5rem;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease-out;
            color: var(--text-secondary);
            opacity: 0;
        }

        .faq-item.active .faq-answer {
            padding: 0 1.5rem 1.5rem;
            max-height: 500px;
            opacity: 1;
            transition: all 0.3s ease-in;
        }

        .faq-answer ul {
            margin-left: 1.5rem;
            margin-top: 0.8rem;
        }

        .faq-answer li {
            margin-bottom: 0.5rem;
            list-style-type: square;
        }
        
        .faq-answer li::marker {
            color: var(--secondary-color);
        }