html {
            scroll-behavior: smooth;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Poppins', sans-serif;
        }
        
        :root {
            --primary-gradient: linear-gradient(135deg, #0a1a30 0%, #1a4a7a 100%);
            --accent-gradient: linear-gradient(45deg, #00e0ff 0%, #0077ff 100%);
            --cyber-teal: #00e0ff;
            --deep-space: #0a1a30;
            --network-blue: #0077ff;
            --text-color: #f0f4f8;
            --section-bg: linear-gradient(135deg, #0a1120 0%, #02172e 100%);
            --success-green: #00d26a;
        }
        
        body {
            background: var(--section-bg);
            color: var(--text-color);
            min-height: 100vh;
            padding-top: 80px;
            padding-bottom: 70px; 
        }
        
        .header {
            background: var(--primary-gradient);
            padding: 1rem 5%;
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.3);
            background-size: 400% 400%;
            animation: gradientFlow 15s ease infinite;
        }
        
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .logo-container {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: url('https://avatars.githubusercontent.com/u/203100969?v=4') center/cover;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid rgba(0,224,255,0.5);
        }
        
        .logo-text {
            color: white;
            font-size: 1.5rem;
            font-weight: 700;
            background: var(--accent-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .nav-links {
            display: flex;
            gap: 2rem;
        }
        
        .nav-links a {
            color: rgba(255,255,255,0.9);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--cyber-teal);
            transition: width 0.3s ease;
        }
        
        .nav-links a:hover {
            color: var(--cyber-teal);
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }
        
        .hero {
            min-height: calc(100vh - 150px); /* Sesuaikan dengan tinggi navbar dan footer */
            background: linear-gradient(rgba(10,26,48,0.85), rgba(16,57,94,0.85)),
                        url('../img/bg.jpg') center/cover;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: var(--text-color);
        }
        
        .hero-content {
            max-width: 800px;
            padding: 2rem;
            background: rgba(10, 26, 48, 0.7);
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.4);
            border: 1px solid rgba(0,224,255,0.2);
            margin: 20px;
        }
        
        .hero-content h1 {
            font-size: 3rem;
            margin-bottom: 1.5rem;
            background: linear-gradient(45deg, #fff 0%, var(--cyber-teal) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .hero-content p {
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            color: rgba(255,255,255,0.9);
            line-height: 1.6;
        }
        
        .exam-info {
            background: rgba(0, 0, 0, 0.3);
            border-radius: 10px;
            padding: 1.5rem;
            margin: 2rem 0;
            text-align: left;
            border-left: 4px solid var(--cyber-teal);
        }
        
        .exam-info h3 {
            color: var(--cyber-teal);
            margin-bottom: 1rem;
            font-size: 1.3rem;
        }
        
        .exam-info ul {
            list-style-type: none;
            padding: 0;
        }
        
        .exam-info li {
            padding: 0.5rem 0;
            display: flex;
            align-items: center;
        }
        
        .exam-info li i {
            color: var(--success-green);
            margin-right: 10px;
            font-size: 1.2rem;
        }
        
        .instructions {
            background: rgba(0, 0, 0, 0.3);
            border-radius: 10px;
            padding: 1.5rem;
            margin: 2rem 0;
            text-align: left;
            border-left: 4px solid var(--network-blue);
        }
        
        .instructions h3 {
            color: var(--network-blue);
            margin-bottom: 1rem;
            font-size: 1.3rem;
        }
        
        .instructions ol {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
        
        .instructions li {
            padding: 0.5rem 0;
        }
        
        .warning {
            color: #ff6b6b;
            font-weight: 500;
            border-top: 1px solid rgba(255,107,107,0.3);
            padding-top: 1rem;
            margin-top: 1rem;
            font-size: 0.95rem;
        }
        
        .exam-form {
            margin: 2rem 0;
        }
        
        .form-group {
            margin-bottom: 1.5rem;
            text-align: left;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: var(--cyber-teal);
        }
        
        .form-group input {
            width: 100%;
            padding: 0.8rem 1rem;
            border-radius: 8px;
            border: 2px solid rgba(0,224,255,0.3);
            background: rgba(0, 0, 0, 0.4);
            color: white;
            font-size: 1rem;
            transition: all 0.3s ease;
        }
        
        .form-group input:focus {
            outline: none;
            border-color: var(--cyber-teal);
            box-shadow: 0 0 15px rgba(0,224,255,0.3);
        }
        
        .cta-button {
            display: inline-block;
            padding: 1rem 2rem;
            background: var(--accent-gradient);
            color: white;
            text-decoration: none;
            border-radius: 50px;
            margin-top: 1.5rem;
            transition: all 0.3s ease;
            border: none;
            position: relative;
            overflow: hidden;
            font-weight: 600;
            letter-spacing: 0.5px;
            font-size: 1.1rem;
            cursor: pointer;
            width: 100%;
            max-width: 300px;
        }
        
        .cta-button::after {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(
                90deg,
                transparent,
                rgba(255,255,255,0.2),
                transparent
            );
            transition: 0.5s;
        }
        
        .cta-button:hover {
            box-shadow: 0 0 20px rgba(0,224,255,0.4);
            transform: translateY(-2px);
        }
        
        .cta-button:hover::after {
            left: 100%;
        }
        
        .footer {
            background: var(--primary-gradient);
            color: var(--text-color);
            padding: 1rem 5%;
            text-align: center;
            position: fixed;
            bottom: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 -2px 10px rgba(0,0,0,0.3);
        }
        
        .footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--accent-gradient);
        }
        
        .footer p {
            max-width: 1200px;
            margin: 0 auto;
            font-size: 0.9rem;
        }
        
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
        
            .hero-content h1 {
                font-size: 2rem;
            }
            
            .hero-content {
                padding: 1.5rem;
                margin: 0 1rem;
            }
            
            .footer {
                padding: 0.8rem 5%;
            }
            
            .footer p {
                font-size: 0.8rem;
            }
            
            body {
                padding-top: 70px;
                padding-bottom: 50px;
            }
        }
        
        @keyframes gradientFlow {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }
        
        .pulse {
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }