:root {
            --black: #0a0a0a;
            --neon-blue: #00f0ff;
            --neon-yellow: #fff200;
            --gray: #333333;
            --light-gray: #aaaaaa;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Pretendard', sans-serif;
        }

        body {
            background-color: var(--black);
            color: white;
            overflow-x: hidden;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* HEADER STYLES */
        header {
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            padding: 20px 0;
            backdrop-filter: blur(10px);
            background-color: rgba(10, 10, 10, 0.7);
            border-bottom: 1px solid rgba(0, 240, 255, 0.3);
            transition: all 0.3s ease;
        }

        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-weight: 900;
            font-size: 2.5rem;
            background: linear-gradient(to right, var(--neon-blue), var(--neon-yellow));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            position: relative;
        }

        .logo::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            background-color: var(--neon-blue);
            border-radius: 50%;
            top: -5px;
            right: -10px;
            filter: blur(10px);
            animation: pulse 2s infinite;
        }

        nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }

        nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            position: relative;
            padding: 5px 0;
            transition: all 0.3s ease;
            letter-spacing: 1px;
        }

        nav a:hover {
            color: var(--neon-blue);
        }

        nav a::before {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: 0;
            left: 0;
            background-color: var(--neon-blue);
            transition: width 0.3s ease;
        }

        nav a:hover::before {
            width: 100%;
            box-shadow: 0 0 10px var(--neon-blue);
        }

        /* HERO SECTION */
        .hero {
            height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            background: 
                radial-gradient(circle at 20% 20%, rgba(0, 240, 255, 0.2) 0%, transparent 30%),
                radial-gradient(circle at 80% 80%, rgba(255, 242, 0, 0.15) 0%, transparent 30%);
            z-index: -1;
        }

        .grid-lines {
            position: absolute;
            width: 200%;
            height: 200%;
            background: 
                linear-gradient(rgba(0, 240, 255, 0.1) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 240, 255, 0.1) 1px, transparent 1px);
            background-size: 30px 30px;
            transform: perspective(500px) rotateX(60deg);
            transform-origin: center top;
            animation: grid-move 15s linear infinite;
            opacity: 0.5;
            z-index: -1;
        }

        .hero-content {
            width: 100%;
        }

        .hero h1 {
            font-size: 4.5rem;
            font-weight: 900;
            margin-bottom: 20px;
            line-height: 1.1;
            position: relative;
            display: inline-block;
        }

        .hero h1 span {
            color: var(--neon-blue);
            text-shadow: 0 0 10px rgba(0, 240, 255, 0.7);
        }

        .hero h1::after {
            content: 'NFP';
            position: absolute;
            left: 3px;
            top: 3px;
            color: rgba(255, 242, 0, 0.7);
            z-index: -1;
            filter: blur(4px);
        }

        .hero p {
            font-size: 1.2rem;
            font-weight: 300;
            margin-bottom: 40px;
            max-width: 600px;
            color: var(--light-gray);
            line-height: 1.6;
        }

        .glitch-btn {
            display: inline-block;
            background-color: transparent;
            color: var(--neon-blue);
            font-weight: 700;
            padding: 15px 40px;
            text-decoration: none;
            border: 2px solid var(--neon-blue);
            border-radius: 5px;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
            z-index: 1;
            letter-spacing: 2px;
            text-transform: uppercase;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
        }

        .glitch-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: var(--neon-blue);
            z-index: -1;
            transition: all 0.3s ease;
        }

        .glitch-btn:hover {
            color: var(--black);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
        }

        .glitch-btn:hover::before {
            left: 0;
        }

        .hero-image {
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 45%;
            height: 70%;
            background: url('/api/placeholder/600/400') center/cover;
            clip-path: polygon(15% 0%, 100% 0%, 100% 100%, 0% 100%);
            z-index: -1;
            opacity: 0.7;
            box-shadow: -10px 0 30px rgba(0, 240, 255, 0.5);
        }

        .hero-image::before {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, transparent 30%, rgba(0, 240, 255, 0.4) 70%, transparent 90%);
            animation: scan-line 3s infinite linear;
            z-index: 1;
        }

        /* GAMES SECTION */
        .games-section {
            padding: 120px 0;
            position: relative;
            overflow: hidden;
        }

        .section-title {
            font-size: 3rem;
            font-weight: 900;
            margin-bottom: 60px;
            text-align: center;
            color: white;
            position: relative;
            display: inline-block;
            left: 50%;
            transform: translateX(-50%);
        }

        .section-title::before {
            content: '';
            position: absolute;
            width: 50px;
            height: 5px;
            background: var(--neon-yellow);
            bottom: -15px;
            left: calc(50% - 25px);
            box-shadow: 0 0 15px var(--neon-yellow);
        }

        .games-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 40px;
            perspective: 1000px;
        }

        .game-card {
            position: relative;
            height: 450px;
            border-radius: 10px;
            overflow: visible;
            perspective: 1000px;
            cursor: pointer;
        }

        .card-inner {
            position: relative;
            width: 100%;
            height: 100%;
            text-align: center;
            transition: transform 0.8s;
            transform-style: preserve-3d;
        }

        .game-card:hover .card-inner {
            transform: rotateY(180deg);
        }

        .card-front, .card-back {
            position: absolute;
            width: 100%;
            height: 100%;
            -webkit-backface-visibility: hidden;
            backface-visibility: hidden;
            border-radius: 10px;
            overflow: hidden;
        }

        .card-front {
            background-color: var(--gray);
            display: flex;
            align-items: flex-end;
        }

        .card-front img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .game-card:hover .card-front img {
            transform: scale(1.1);
        }

        .card-front-content {
            position: absolute;
            width: 100%;
            padding: 30px 20px;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
            z-index: 1;
        }

        .card-front-content h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: white;
            position: relative;
            display: inline-block;
        }

        .card-front-content h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -5px;
            width: 50px;
            height: 3px;
            background-color: var(--neon-blue);
            box-shadow: 0 0 10px var(--neon-blue);
            transition: width 0.3s ease;
        }

        .game-card:hover .card-front-content h3::after {
            width: 100%;
        }

        .card-front-content p {
            font-size: 0.9rem;
            font-weight: 300;
            color: var(--light-gray);
        }

        .card-back {
            background-color: var(--gray);
            transform: rotateY(180deg);
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 40px;
            background: linear-gradient(135deg, #222 0%, #111 100%);
            border: 1px solid rgba(0, 240, 255, 0.3);
            box-shadow: inset 0 0 30px rgba(0, 240, 255, 0.2);
        }

        .card-back h3 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--neon-blue);
            text-shadow: 0 0 5px rgba(0, 240, 255, 0.5);
        }

        .card-back p {
            font-size: 1rem;
            font-weight: 300;
            color: white;
            margin-bottom: 30px;
            line-height: 1.6;
        }

        .card-back a {
            display: block;         /* 또는 inline-block에서 block으로 변경 */
            width: fit-content;     /* 내용 크기만큼만 넓이 */
            margin: 0 auto;         /* 좌우 자동 여백으로 가운데 정렬 */
            /* 기존 스타일 유지 */
            padding: 10px 30px;
            background-color: var(--neon-yellow);
            color: var(--black);
            text-decoration: none;
            font-weight: 700;
            border-radius: 5px;
            transition: all 0.3s ease;
            box-shadow: 0 0 15px rgba(255, 242, 0, 0.5);
            }

        .card-back a:hover {
            background-color: var(--neon-blue);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.7);
        }

        /* FEATURES SECTION */
        .features-section {
            padding: 120px 0;
            background-color: rgba(20, 20, 20, 0.8);
            position: relative;
            overflow: hidden;
        }

        .features-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at center, rgba(0, 240, 255, 0.1) 0%, transparent 70%);
            z-index: -1;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .feature-card {
            background-color: rgba(30, 30, 30, 0.5);
            border-radius: 10px;
            padding: 40px 30px;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.1);
            position: relative;
            overflow: hidden;
        }

        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 30px rgba(0, 0, 0, 0.3);
            border-color: rgba(0, 240, 255, 0.3);
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: -100%;
            left: -100%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(0, 240, 255, 0.15) 0%, transparent 70%);
            opacity: 0;
            transition: opacity 0.5s ease;
            z-index: -1;
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            font-size: 2.5rem;
            color: var(--neon-blue);
            margin-bottom: 20px;
            position: relative;
        }

        .feature-icon::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background-color: var(--neon-blue);
            filter: blur(15px);
            z-index: -1;
        }

        .feature-card h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: white;
        }

        .feature-card p {
            font-size: 1rem;
            font-weight: 300;
            color: var(--light-gray);
            line-height: 1.6;
        }

        /* ABOUT SECTION */
        .about-section {
            padding: 120px 0;
            position: relative;
            overflow: hidden;
        }

        .about-content {
            display: flex;
            align-items: center;
            gap: 60px;
        }

        .about-image {
            flex: 1;
            position: relative;
            height: 500px;
        }

        .about-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 10px;
            position: relative;
            z-index: 1;
        }

        .about-image::before {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            border: 2px solid var(--neon-yellow);
            border-radius: 10px;
            top: 20px;
            left: 20px;
            z-index: 0;
        }

        .about-image::after {
            content: '';
            position: absolute;
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background-color: var(--neon-blue);
            filter: blur(50px);
            opacity: 0.5;
            top: -30px;
            right: -30px;
            z-index: -1;
        }

        .about-text {
            flex: 1;
        }

        .about-text h2 {
            font-size: 3rem;
            font-weight: 900;
            margin-bottom: 30px;
            color: white;
            position: relative;
            display: inline-block;
        }

        .about-text h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -10px;
            width: 80px;
            height: 4px;
            background-color: var(--neon-yellow);
            box-shadow: 0 0 10px var(--neon-yellow);
        }

        .about-text p {
            font-size: 1.1rem;
            font-weight: 300;
            color: var(--light-gray);
            margin-bottom: 30px;
            line-height: 1.8;
        }

        .stat-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--neon-blue);
            margin-bottom: 5px;
            position: relative;
            display: inline-block;
        }

        .stat-number::after {
            content: '+';
            position: absolute;
            font-size: 1.5rem;
            top: 0;
            right: -15px;
        }

        .stat-label {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--light-gray);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        /* FOOTER */
        footer {
            background-color: #050505;
            padding: 80px 0 40px;
            position: relative;
            overflow: hidden;
            border-top: 1px solid rgba(0, 240, 255, 0.2);
        }

        footer::before {
            content: '';
            position: absolute;
            width: 100%;
            height: 1px;
            background: linear-gradient(to right, transparent, var(--neon-blue), transparent);
            top: 0;
            left: 0;
        }

        .footer-content {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 60px;
            margin-bottom: 60px;
        }

        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 20px;
            background: linear-gradient(to right, var(--neon-blue), var(--neon-yellow));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
        }

        .footer-desc {
            font-size: 0.9rem;
            font-weight: 300;
            color: var(--light-gray);
            line-height: 1.6;
            margin-bottom: 30px;
        }

        .social-links {
            display: flex;
            gap: 15px;
        }

        .social-link {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--gray);
            color: white;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .social-link:hover {
            background-color: var(--neon-blue);
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0, 240, 255, 0.5);
        }

        .footer-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 25px;
            color: white;
            position: relative;
            display: inline-block;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -10px;
            width: 30px;
            height: 2px;
            background-color: var(--neon-blue);
        }

        .footer-links li {
            margin-bottom: 15px;
            list-style: none;
        }

        .footer-links a {
            color: var(--light-gray);
            text-decoration: none;
            font-weight: 300;
            transition: all 0.3s ease;
            position: relative;
            padding-left: 15px;
        }

        .footer-links a::before {
            content: '›';
            position: absolute;
            left: 0;
            color: var(--neon-blue);
            transition: transform 0.3s ease;
        }

        .footer-links a:hover {
            color: var(--neon-blue);
        }

        .footer-links a:hover::before {
            transform: translateX(5px);
        }

        .copyright {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            font-weight: 300;
            color: var(--light-gray);
        }

        /* ANIMATIONS */
        @keyframes pulse {
            0% {
                opacity: 0.5;
                transform: scale(1);
            }
            50% {
                opacity: 1;
                transform: scale(1.2);
            }
            100% {
                opacity: 0.5;
                transform: scale(1);
            }
        }

        @keyframes grid-move {
            0% {
                transform: perspective(500px) rotateX(60deg) translateY(0);
            }
            100% {
                transform: perspective(500px) rotateX(60deg) translateY(30px);
            }
        }

        @keyframes scan-line {
            0% {
                transform: translateY(-100%);
            }
            100% {
                transform: translateY(100%);
            }
        }

        @keyframes float {
            0% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-15px);
            }
            100% {
                transform: translateY(0);
            }
        }

        /* RESPONSIVE DESIGN */
        @media (max-width: 1200px) {
            .hero h1 {
                font-size: 3.5rem;
            }
            .hero-content {
                width: 70%;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 992px) {
            .hero-content {
                width: 100%;
            }
            .hero-image {
                display: none;
            }
            .about-content {
                flex-direction: column;
            }
            .about-image {
                width: 100%;
            }
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .hero h1 {
                font-size: 3rem;
            }
            .games-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }
        }

        @media (max-width: 576px) {
            .header-container {
                flex-direction: column;
                gap: 20px;
            }
            nav ul {
                gap: 15px;
            }
            .hero h1 {
                font-size: 2.5rem;
            }
            .section-title {
                font-size: 2.5rem;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
        }