:root {
            --cyber-green: #00ff41;
            --cyber-blue: #0066ff;
            --cyber-purple: #9d00ff;
            --dark-bg: #0a0a0a;
            --dark-secondary: #1a1a1a;
            --dark-accent: #2a2a2a;
            --text-primary: #ffffff;
            --text-secondary: #b0b0b0;
            --glow-effect: 0 0 20px var(--cyber-green);
        }

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

        body {
            font-family: 'Rajdhani', sans-serif;
            background: var(--dark-bg);
            color: var(--text-primary);
            overflow-x: hidden;
            scroll-behavior: smooth;
        }

        /* Animated Background */
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: 
                radial-gradient(circle at 20% 80%, rgba(0, 255, 65, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(0, 102, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 40% 40%, rgba(157, 0, 255, 0.1) 0%, transparent 50%);
            z-index: -1;
            animation: backgroundMove 20s ease-in-out infinite;
        }

        @keyframes backgroundMove {
            0%, 100% { opacity: 0.3; }
            50% { opacity: 0.6; }
        }

        /* Navigation */
        .cyber-nav {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            padding: 1rem 0;
            backdrop-filter: blur(20px);
            background: rgba(10, 10, 10, 0.9);
            border-bottom: 2px solid var(--cyber-green);
            transition: all 0.3s ease;
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 2rem;
        }

        .nav-logo a {
            font-family: 'Orbitron', monospace;
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--cyber-green);
            text-decoration: none;
            text-shadow: var(--glow-effect);
            transition: all 0.3s ease;
        }

        .nav-logo a:hover {
            transform: scale(1.1);
            text-shadow: 0 0 30px var(--cyber-green);
        }

        .nav-list {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-link {
            color: var(--text-primary);
            text-decoration: none;
            font-weight: 500;
            font-size: 1.1rem;
            position: relative;
            transition: all 0.3s ease;
            padding: 0.5rem 1rem;
        }

        .nav-link::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--cyber-green), var(--cyber-blue));
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }

        .nav-link:hover::before {
            width: 100%;
        }

        .nav-link:hover {
            color: var(--cyber-green);
            text-shadow: 0 0 10px var(--cyber-green);
        }

        .hamburger-menu {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--cyber-green);
        }

        /* Hero Section */
        #home {
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            position: relative;
            background: linear-gradient(135deg, rgba(0, 0, 0, 0.8), rgba(26, 26, 26, 0.9));
        }

        .hero-text h1 {
            font-family: 'Orbitron', monospace;
            font-size: clamp(2rem, 5vw, 4rem);
            font-weight: 900;
            background: linear-gradient(45deg, var(--cyber-green), var(--cyber-blue), var(--cyber-purple));
            background-size: 300% 300%;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: gradientShift 3s ease-in-out infinite, typewriter 4s steps(40) 1s both;
            margin-bottom: 1rem;
        }

        .hero-text p {
            font-size: clamp(1.2rem, 3vw, 1.8rem);
            color: var(--text-secondary);
            font-weight: 300;
            animation: fadeInUp 2s ease 2s both;
            position: relative;
        }

        .hero-text p::after {
            content: '|';
            color: var(--cyber-green);
            animation: blink 1s infinite;
            margin-left: 5px;
        }

        @keyframes gradientShift {
            0%, 100% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
        }

        @keyframes typewriter {
            from { width: 0; }
            to { width: 100%; }
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes blink {
            0%, 50% { opacity: 1; }
            51%, 100% { opacity: 0; }
        }

        /* Sections */
        section {
            padding: 5rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-title {
            font-family: 'Orbitron', monospace;
            font-size: 2.5rem;
            text-align: center;
            margin-bottom: 3rem;
            color: var(--cyber-green);
            position: relative;
            text-shadow: var(--glow-effect);
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            width: 100px;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--cyber-green), transparent);
            transform: translateX(-50%);
        }

        /* About Section */
        .about-content {
            display: grid;
            grid-template-columns: 300px 1fr;
            gap: 3rem;
            align-items: center;
            margin-top: 2rem;
        }

        .profile-img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            border-radius: 20px;
            border: 3px solid var(--cyber-green);
            box-shadow: var(--glow-effect);
            transition: all 0.3s ease;
            filter: grayscale(20%);
        }

        .profile-img:hover {
            transform: scale(1.05) rotate(2deg);
            box-shadow: 0 0 40px var(--cyber-green);
            filter: grayscale(0%);
        }

        .about-text {
            font-size: 1.1rem;
            line-height: 1.8;
            color: var(--text-secondary);
            text-align: justify;
        }

        /* Skills Section */
        .skill-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .skill-card {
            background: linear-gradient(135deg, var(--dark-secondary), var(--dark-accent));
            padding: 2rem;
            border-radius: 15px;
            border: 1px solid rgba(0, 255, 65, 0.3);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .skill-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(0, 255, 65, 0.1), transparent);
            transition: all 0.5s ease;
        }

        .skill-card:hover::before {
            left: 100%;
        }

        .skill-card:hover {
            transform: translateY(-5px);
            border-color: var(--cyber-green);
            box-shadow: 0 10px 30px rgba(0, 255, 65, 0.2);
        }

        .skill-card h3 {
            color: var(--cyber-green);
            margin-bottom: 1rem;
            font-size: 1.2rem;
            font-weight: 700;
        }

        .skill-bar {
            height: 8px;
            background: rgba(255,255,255,0.1);
            border-radius: 10px;
            overflow: hidden;
            margin-top: 1rem;
        }

        .skill-progress {
            height: 100%;
            background: linear-gradient(90deg, var(--cyber-green), var(--cyber-blue));
            border-radius: 10px;
            animation: skillLoad 2s ease-in-out;
            position: relative;
        }

        .skill-progress::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
            animation: shimmer 2s infinite;
        }

        @keyframes skillLoad {
            from { width: 0; }
        }

        @keyframes shimmer {
            0% { transform: translateX(-100%); }
            100% { transform: translateX(100%); }
        }

        /* Certification Section */
        .certification-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .certification-box {
            background: linear-gradient(135deg, var(--dark-secondary), var(--dark-accent));
            border-radius: 20px;
            padding: 2rem;
            border: 1px solid rgba(0, 255, 65, 0.3);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .certification-box::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: conic-gradient(from 0deg, transparent, var(--cyber-green), transparent);
            animation: rotate 4s linear infinite;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .certification-box:hover::before {
            opacity: 0.1;
        }

        .certification-box:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 255, 65, 0.2);
            border-color: var(--cyber-green);
        }

        @keyframes rotate {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        .certification-box img {
            width: 100%;
            max-height: 200px;
            object-fit: contain;
            border-radius: 12px;
            margin-bottom: 1.5rem;
            border: 2px solid var(--cyber-green);
            background: #000; /* Opsional: biar gambar gak transparan */
        }


        .certification-content h3 {
            color: var(--cyber-green);
            margin-bottom: 1rem;
            font-size: 1.3rem;
            font-weight: 700;
        }

        .certification-content p {
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Experience Section */
        .experience-container {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        .experience-item {
            display: grid;
            grid-template-columns: 100px 1fr;
            gap: 2rem;
            background: linear-gradient(135deg, var(--dark-secondary), var(--dark-accent));
            padding: 2rem;
            border-radius: 20px;
            border: 1px solid rgba(0, 255, 65, 0.3);
            transition: all 0.3s ease;
            position: relative;
        }

        .experience-item:hover {
            transform: translateX(10px);
            border-color: var(--cyber-green);
            box-shadow: -5px 0 20px rgba(0, 255, 65, 0.2);
        }

        .experience-item img {
            width: 80px;
            height: 80px;
            object-fit: cover;
            border-radius: 15px;
            border: 2px solid var(--cyber-green);
        }

        .experience-content h3 {
            color: var(--cyber-green);
            font-size: 1.3rem;
            margin-bottom: 0.5rem;
            font-weight: 700;
        }

        .experience-content h4 {
            color: var(--cyber-blue);
            font-size: 1.1rem;
            margin-bottom: 1rem;
            font-weight: 500;
        }

        .experience-content p {
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Contact Section */
        .contact-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .contact-info {
            display: grid;
            gap: 2rem;
        }

        .info-item {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            background: linear-gradient(135deg, var(--dark-secondary), var(--dark-accent));
            padding: 2rem;
            border-radius: 15px;
            border: 1px solid rgba(0, 255, 65, 0.3);
            transition: all 0.3s ease;
        }

        .info-item:hover {
            transform: translateY(-5px);
            border-color: var(--cyber-green);
            box-shadow: 0 10px 30px rgba(0, 255, 65, 0.2);
        }

        .info-item i {
            font-size: 2rem;
            color: var(--cyber-green);
            text-shadow: var(--glow-effect);
        }

        .info-item h3 {
            color: var(--cyber-green);
            margin-bottom: 0.5rem;
            font-size: 1.2rem;
        }

        .info-item p {
            color: var(--text-secondary);
            font-size: 1.1rem;
        }

        .contact-map {
            width: 100%;
            height: 300px;
            border: none;
            border-radius: 15px;
            margin-top: 2rem;
            border: 2px solid var(--cyber-green);
            box-shadow: var(--glow-effect);
        }

        /* Footer */
        .footer {
            background: var(--dark-secondary);
            border-top: 2px solid var(--cyber-green);
            padding: 3rem 2rem 1rem;
            text-align: center;
        }

        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
        }

        .footer-content h3 {
            color: var(--cyber-green);
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }

        .footer-content p {
            margin-bottom: 0.5rem;
            color: var(--text-secondary);
        }

        .footer-content a {
            color: var(--cyber-green);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .footer-content a:hover {
            text-shadow: var(--glow-effect);
            text-decoration: underline;
        }

        .footer-bottom {
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 1px solid var(--dark-accent);
        }

        /* Scroll to top button */
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--cyber-green);
            color: var(--dark-bg);
            border: none;
            border-radius: 50%;
            cursor: pointer;
            display: none;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            transition: all 0.3s ease;
            z-index: 1000;
        }

        .scroll-top:hover {
            transform: scale(1.1);
            box-shadow: var(--glow-effect);
        }

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

            .nav-list {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--dark-bg);
                flex-direction: column;
                padding: 2rem;
                border-top: 1px solid var(--cyber-green);
            }

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

            .about-content {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .experience-item {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .certification-container {
                grid-template-columns: 1fr;
            }

            .hero-text h1 {
                font-size: 2rem;
            }

            .hero-text p {
                font-size: 1.2rem;
            }
        }

        /* Loading Animation */
        .loading {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--dark-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 9999;
            transition: all 0.5s ease;
        }

        .loading.hidden {
            opacity: 0;
            pointer-events: none;
        }

        .loader {
            width: 60px;
            height: 60px;
            border: 3px solid var(--dark-accent);
            border-top: 3px solid var(--cyber-green);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* Floating particles */
        .particles {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: -1;
        }

        .particle {
            position: absolute;
            width: 4px;
            height: 4px;
            background: var(--cyber-green);
            border-radius: 50%;
            animation: float 15s infinite linear;
            opacity: 0.3;
        }

        @keyframes float {
            0% {
                transform: translateY(100vh) rotate(0deg);
                opacity: 0;
            }
            10% {
                opacity: 0.3;
            }
            90% {
                opacity: 0.3;
            }
            100% {
                transform: translateY(-100vh) rotate(360deg);
                opacity: 0;
            }
        }