:root {
            --primary: #00ffff;
            --secondary: #00b7b7;
            --dark: #121212;
            --light: #e0e0e0;
            --accent: #00ffff;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: var(--dark);
            color: var(--light);
            overflow-x: hidden;
        }
        
        /* Navigation */
        nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            padding: 20px 10%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background-color: rgba(18, 18, 18, 0.9);
            box-shadow: 0 5px 20px rgba(0, 255, 255, 0.1);
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        
        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
        }
        
        .nav-links {
            display: flex;
            gap: 30px;
        }
        
        .nav-links a {
            text-decoration: none;
            color: var(--light);
            font-weight: 500;
            position: relative;
            transition: all 0.3s ease;
        }
        
        .nav-links a:hover {
            color: var(--primary);
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: width 0.3s ease;
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }
        
        /* Hamburger Menu */
        .hamburger {
            display: none;
            cursor: pointer;
            width: 30px;
            height: 20px;
            position: relative;
            z-index: 1001;
        }
        
        .hamburger span {
            display: block;
            position: absolute;
            height: 3px;
            width: 100%;
            background: var(--primary);
            border-radius: 3px;
            opacity: 1;
            left: 0;
            transform: rotate(0deg);
            transition: .25s ease-in-out;
        }
        
        .hamburger span:nth-child(1) {
            top: 0px;
        }
        
        .hamburger span:nth-child(2), .hamburger span:nth-child(3) {
            top: 10px;
        }
        
        .hamburger span:nth-child(4) {
            top: 20px;
        }
        
        .hamburger.open span:nth-child(1) {
            top: 10px;
            width: 0%;
            left: 50%;
        }
        
        .hamburger.open span:nth-child(2) {
            transform: rotate(45deg);
        }
        
        .hamburger.open span:nth-child(3) {
            transform: rotate(-45deg);
        }
        
        .hamburger.open span:nth-child(4) {
            top: 10px;
            width: 0%;
            left: 50%;
        }
        
        /* Mobile Menu */
        .mobile-menu {
            position: fixed;
            top: 0;
            right: -100%;
            width: 70%;
            max-width: 300px;
            height: 100vh;
            background-color: rgba(30, 30, 30, 0.95);
            backdrop-filter: blur(10px);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 30px;
            transition: right 0.4s ease-in-out;
            z-index: 1000;
            box-shadow: -5px 0 15px rgba(0, 0, 0, 0.2);
        }
        
        .mobile-menu.open {
            right: 0;
        }
        
        .mobile-menu a {
            color: var(--light);
            text-decoration: none;
            font-size: 20px;
            font-weight: 500;
            position: relative;
            padding: 5px 10px;
            transition: all 0.3s ease;
        }
        
        .mobile-menu a:hover {
            color: var(--primary);
        }
        
        .mobile-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: width 0.3s ease;
        }
        
        .mobile-menu a:hover::after {
            width: 100%;
        }
        
        /* Overlay */
        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        
        .overlay.active {
            opacity: 1;
            visibility: visible;
        }

        /* Hero Section */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 0 10%;
            padding-top: 80px;
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 70vh;
            height: 70vh;
            background: linear-gradient(45deg, var(--primary), var(--accent));
            border-radius: 50%;
            z-index: -1;
            opacity: 0.1;
            animation: float 8s ease-in-out infinite;
        }
        
        .hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 50vh;
            height: 50vh;
            background: linear-gradient(45deg, var(--accent), var(--secondary));
            border-radius: 50%;
            z-index: -1;
            opacity: 0.1;
            animation: float 6s ease-in-out infinite 2s;
        }
        
        .hero-content {
            display: flex;
            align-items: center;
            gap: 50px;
            width: 100%;
        }
        
        .profile-img {
            width: 350px;
            height: 350px;
            border-radius: 50%;
            object-fit: cover;
            border: 10px solid rgba(0, 255, 255, 0.1);
            box-shadow: 0 10px 30px rgba(0, 255, 255, 0.1);
            animation: morph 8s ease-in-out infinite;
            transition: all 0.3s ease;
        }
        
        .profile-img:hover {
            transform: scale(1.05);
            box-shadow: 0 15px 40px rgba(0, 255, 255, 0.2);
        }
        
        .hero-text {
            flex: 1;
        }
        
        .hero-text h1 {
            font-size: 48px;
            margin-bottom: 15px;
            color: var(--light);
            /* Menambahkan tinggi minimum agar layout tidak "lompat" saat teks kosong */
            min-height: 60px; 
        }
        
        #typed-name {
            color: var(--primary);
        }
        
        #typed-name::after {
            content: '|';
            animation: blink 0.7s infinite;
            color: var(--primary);
        }

        /* Menghilangkan kursor kedua agar tidak muncul di sapaan */
        #greeting-text::after {
            content: '';
            animation: none;
        }
        
        @keyframes blink {
            50% {
                opacity: 0;
            }
        }
        
        .hero-text h2 {
            font-size: 24px;
            font-weight: 400;
            margin-bottom: 20px;
            color: var(--primary);
        }
        
        .hero-text p {
            font-size: 16px;
            line-height: 1.6;
            margin-bottom: 30px;
            color: #b0b0b0;
            max-width: 600px;
        }
        
        .social-icons {
            display: flex;
            gap: 20px;
            margin-bottom: 30px;
        }
        
        .social-icons a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary);
            color: var(--dark);
            font-size: 18px;
            transition: all 0.3s ease;
        }
        
        .social-icons a:hover {
            background-color: #121212;
            color: cyan;
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0, 255, 255, 0.3);
        }
        
        .btn {
            display: inline-block;
            padding: 12px 30px;
            background-color: var(--primary);
            color: var(--dark);
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0, 255, 255, 0.4);
        }
        
        .btn:hover {
            background-color: #121212;
            color: cyan;
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 255, 255, 0.6);
        }
        
        /* Skills Section */
        .skills {
            padding: 100px 10%;
            background-color: #1e1e1e;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 36px;
            color: var(--light);
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: linear-gradient(to right, var(--primary), var(--accent));
        }
        
        .skills-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        
        .skill-card {
            background-color: #252525;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            transition: all 0.1s ease;
            text-align: center;
        }
        
        .skill-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 255, 255, 0.5);
        }
        
        .skill-icon {
            margin-bottom: 20px;
            text-align: center;
        }
        
        #skills .skill-icon i {
            font-size: 50px;
            color: var(--primary);
        }
        
        #projects .skill-icon {
            position: relative;
            padding-top: 56.25%; /* 16:9 aspect ratio */
        }
        
        #projects .skill-icon img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 5px;
        }
        
        .skill-card h3 {
            font-size: 22px;
            margin-bottom: 15px;
            color: var(--light);
        }
        
        .skill-card p {
            color: #b0b0b0;
            line-height: 1.6;
        }
        
        /* Tools Section */
        .tools {
            padding: 100px 10%;
            background-color: #252525;
        }
        
        .tools-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 25px;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .tool-card {
            background-color: #1e1e1e;
            border-radius: 10px;
            padding: 25px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            transition: all 0.1s ease;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        
        .tool-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 255, 255, 0.5);
        }
        
        .tool-icon {
            width: 60px;
            height: 60px;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            color: var(--primary);
            background-color: rgba(0, 255, 255, 0.1);
            border-radius: 50%;
        }
        
        .tool-card h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--light);
        }
        
        .tool-card p {
            color: #b0b0b0;
            font-size: 14px;
            line-height: 1.5;
        }
        
        /* Footer */
        footer {
            background-color: #1a1a1a;
            padding: 30px 10%;
            text-align: center;
        }
        
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }
        
        .footer-links {
            display: flex;
            gap: 20px;
        }
        
        .footer-links a {
            color: var(--light);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .footer-links a:hover {
            color: var(--primary);
        }
        
        .copyright {
            color: #b0b0b0;
            font-size: 14px;
        }
        
        /* Animations */
        @keyframes float {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-20px);
            }
        }
        
        @keyframes morph {
            0%, 100% {
                border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
            }
            50% {
                border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
            }
        }
        
        /* Responsive Design */
        @media (max-width: 992px) {
            .hero-content {
                flex-direction: column;
                text-align: center;
            }
            
            .profile-img {
                width: 250px;
                height: 250px;
            }
             .hero-text h1 {
                min-height: 45px;
            }
            
            .hero-text p {
                margin-left: auto;
                margin-right: auto;
            }
            
            .social-icons {
                justify-content: center;
            }
            
            .skills-container, .tools-container {
                grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            }
        }
        
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            
            .hamburger {
                display: block;
            }
            
            .hero-text h1 {
                font-size: 36px;
                min-height: 45px;
            }
            
            .hero-text h2 {
                font-size: 20px;
            }
            
            .skills-container, .tools-container {
                grid-template-columns: 1fr;
            }
        }

        html {
            scroll-behavior: smooth;
        }