:root {
            --bg-body: #0f172a; /* Deep Slate Blue */
            --bg-card: #1e293b;
            --accent-primary: #38bdf8; /* Sky Blue */
            --accent-secondary: #10b981; /* Emerald Green */
            --text-main: #f8fafc;
            --text-muted: #94a3b8;
            --border: #334155;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html { scroll-behavior: smooth; }

        body {
            background-color: var(--bg-body);
            color: var(--text-main);
            font-family: 'Inter', sans-serif;
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* --- Layout --- */
        .container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        section {
            padding: 100px 0;
            opacity: 0;
            transform: translateY(20px);
            transition: var(--transition);
        }

        section.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* --- Navigation --- */
        nav {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(15, 23, 42, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            padding: 1rem 0;
        }

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

        .logo {
            font-family: 'Fira Code', monospace;
            font-weight: 700;
            color: var(--accent-primary);
            text-decoration: none;
            font-size: 1.2rem;
        }

        .nav-links a {
            color: var(--text-muted);
            text-decoration: none;
            margin-left: 2rem;
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
        }

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

        /* --- Hero Section --- */
.hero {
            height: 100vh;
            display: flex;
            align-items: center;
            padding-top: 80px;
        }

        .hero-text h1 {
            font-size: clamp(2.5rem, 8vw, 4.5rem);
            font-weight: 700;
            line-height: 1.1;
            margin-bottom: 1.5rem;
        }

        .hero-text h1 span {
            color: var(--accent-primary);
        }

        .typewriter {
            font-family: 'Fira Code', monospace;
            color: var(--accent-secondary);
            font-size: 1.2rem;
            margin-bottom: 2rem;
            display: block;
        }

        .hero-btns {
            display: flex;
            gap: 1rem;
        }

        .btn {
            padding: 0.8rem 1.8rem;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            display: inline-block;
        }

        .btn-primary {
            background: var(--accent-primary);
            color: var(--bg-body);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(56, 189, 248, 0.2);
        }

        .btn-outline {
            border: 1px solid var(--border);
            color: var(--text-main);
        }

        .btn-outline:hover { background: var(--border); }

        /* --- About / Terminal --- */
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .terminal-window {
            background: #000;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0,0,0,0.4);
            font-family: 'Fira Code', monospace;
            font-size: 0.9rem;
        }

        .terminal-header {
            background: #27272a;
            padding: 10px 15px;
            display: flex;
            gap: 8px;
        }

        .dot { width: 12px; height: 12px; border-radius: 50%; }
        .red { background: #ff5f56; }
        .yellow { background: #ffbd2e; }
        .green { background: #27c93f; }

        .terminal-body {
                    padding: 20px;
            color: #d1d5db;
        }

        .code-accent { color: var(--accent-secondary); }

        /* --- Skills Section --- */
        .section-title {
            font-size: 2rem;
            margin-bottom: 3rem;
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .section-title::after {
            content: "";
            height: 1px;
            background: var(--border);
            flex-grow: 1;
        }

        .skills-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
        }

        .skill-card {
            background: var(--bg-card);
            padding: 2rem;
            border-radius: 12px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .skill-card:hover {
            border-color: var(--accent-primary);
            background: #243146;
        }

        .skill-card h3 {
            margin-bottom: 1rem;
            color: var(--accent-primary);
            font-size: 1.1rem;
        }

        .skill-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }

        .tag {
            background: rgba(56, 189, 248, 0.1);
            color: var(--accent-primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
        }

        /* --- Education & Certs --- */
        .cert-grid {
            display: grid;
            gap: 1rem;
        }

        .cert-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.5rem;
            background: var(--bg-card);
            border-radius: 8px;
            border-left: 4px solid var(--accent-secondary);
        }

        .cert-info h4 { margin-bottom: 0.2rem; }
        .cert-info p { color: var(--text-muted); font-size: 0.85rem; }
        
        .verify-link {
            color: var(--accent-primary);
            text-decoration: none;
            font-size: 0.8rem;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* --- Footer --- */
        footer {
            padding: 50px 0;
            border-top: 1px solid var(--border);
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .social-links {
            margin-bottom: 1.5rem;
            display: flex;
            justify-content: center;
            gap: 2rem;
        }

        .social-links a {
            color: var(--text-muted);
            font-size: 1.5rem;
            transition: var(--transition);
        }
.social-links a:hover { color: var(--accent-primary); }

        /* --- Responsive --- */
        @media (max-width: 768px) {
            .about-grid { grid-template-columns: 1fr; }
            .hero-text h1 { font-size: 3rem; }
            .cert-item { flex-direction: column; align-items: flex-start; gap: 1rem; }
        }