:root {
            --primary: #000033; /* Deep Midnight Blue */
            --accent: #a3ff12;  
            --text-light: #ffffffda;
            --text-muted: #d1d5db;
            --bg: #f4f7f6;
        }

        /* --- Keyframe Animations --- */
        @keyframes fadeInDown {
            from { 
            opacity: 0; 
            transform: translateY(-20px); }

            to { 
            opacity: 1; 
            transform: translateY(0); }
        }

        @keyframes slideUp {
            from { 
            opacity: 0; 
            transform: translateY(40px); }

            to { 
            opacity: 1; 
            transform: translateY(0); }
        }

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

        body {
            font-family: 'Helvetica', Arial, sans-serif;
            line-height: 1.6;
            margin: 0;
            color: #333;
            background-image: url(Portfolio-24012026-DNA-Background.jpg);
            scroll-behavior: smooth;
        }

        /* --- Navigation & Hamburger --- */
        nav {
            background: var(--primary);
            color: white;
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 2px solid var(--accent);
        }

        .nav-links {
            display: flex;
            gap: 2rem;
        }

        .nav-links a {
            color: white;
            text-decoration: none;
            text-transform: uppercase;
            font-weight: bold;
            font-size: 0.9rem;
            transition: color 0.4s;
        }

        .nav-links a:hover { color: var(--accent); }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background: var(--accent);
            transition: 0.3s;
        }

        /* --- Header & Hero --- */
        header {
            background: var(--primary);
            color: var(--text-light);
            padding: 4rem 2rem;
            position: relative;
            text-align: center;
            border-bottom: 6px solid var(--accent);
        }

        .header-top {
            max-width: 1100px;
            margin: 0 auto 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            animation: fadeInDown 0.8s ease-out;
        }

        .logo-icon {
            font-size: 2rem;
            border: 2px solid var(--accent);
            padding: 6px;
            border-radius: 50px;
        }

        .logo-text {
            font-size: 1rem;
            letter-spacing: 2px;
            text-transform: uppercase;
            font-weight: bold;
            justify-content: left;
        }

        .profile-photo {
            width: 180px;
            height: 180px;
            border-radius: 50%;
            border: 3px solid var(--accent);
            object-fit: cover;
            background: #222;
        }

        .hero-content {
            max-width: 1100px;
            margin: 0 auto;
            animation: fadeInDown 1s ease-out;
        }

        .tagline { color: var(--accent); 
        font-weight: bold; 
        margin-bottom: 0.5rem; 
    }
        
        h1 { 
        font-size: clamp(2rem, 4vw, 3.5rem); 
        margin: 0; 
        line-height: 1.1; 
    }

        .divider {
            height: 3px;
            background: linear-gradient(to right, var(--accent), transparent);
            margin-top: 2rem;
            animation: expandLine 1.5s ease-in-out forwards;
        }

        /* --- Buttons --- */
        .cta-group {
            margin-top: 2rem;
            display: flex;
            justify-content: center;
            gap: 1rem;
        }

        .btn-cv {
            background: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
            padding: 0.8rem 1.5rem;
            text-decoration: none;
            font-weight: bold;
            text-transform: uppercase;
            border-radius: 4px;
            transition: 0.3s;
        }

        .btn-cv:hover {
            background: var(--accent);
            color: var(--primary);
        }

        /* --- Main Content --- */
        .main-container {
            max-width: 1100px;
            margin: -3rem auto 4rem;
            padding: 0 1rem;
        }

        .skills-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
            margin-bottom: 4rem;
        }

        .card {
            background-color: rgb(245, 245, 245);
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            animation: slideUp 1s ease-out forwards;
        }

        h2 { 
        color: var(--primary); 
        border-bottom: 2px solid var(--accent); display: inline-block; 
        margin-bottom: 1.5rem; 
    }

        .skill-list { 
        list-style: none; 
        padding: 0; 
    }

        .skill-list li { 
        margin-bottom: 0.5rem; 
        padding-left: 1.5rem; 
        position: relative; 
    }

        .skill-list li::before { 
        content: "→"; 
        position: absolute; 
        left: 0; 
        color: var(--accent); 
        font-weight: bold; 
    }


        /* --- Timeline --- */
        .timeline-section {
            background: rgb(245, 245, 245);
            padding: 3rem;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-bottom: 3rem;
        }

        .timeline-item { 
        border-left: 2px solid #ddd; 
        padding-left: 2rem; 
        padding-bottom: 2.5rem; 
        position: relative; 
    }

        .timeline-item::before {
        content: ''; 
        position: absolute; 
        left: -7px; 
        top: 0; 
        width: 12px; 
        height: 12px;
        background: var(--primary); 
        border: 2px solid var(--accent); border-radius: 50%;
        }

        .year { 
        font-weight: bold; 
        color: var(--primary); 
        font-size: 0.9rem; 
    }

        .job-title { 
        margin: 0.2rem 0; 
        font-size: 1.2rem; 
    }

        .company { color: #666; font-style: italic; display: block; }

        .w3-school {
            display: inline-block;
            margin-top: 1rem;
            color: var(--accent);
            text-decoration: none;
            font-weight: bold;
            
        }

        .find-me {
            display: inline-block;
            margin-top: 1rem;
            font-style: italic;
            color: var(--primary);
            text-decoration: none;
            font-weight: bold;
        }

        /* --- Responsive --- */
        @media (max-width: 768px) {
            .menu-toggle { 
            display: flex; }

            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--primary);
                padding: 1rem 0;
                text-align: center;
            }
            .nav-links.active { 
            display: flex; 
        }

            .header-top { 
            flex-direction: column; 
        }

            .profile-photo { 
            margin-top: 1rem; 
        }
        }