:root {
            --darkBg: #0D1117;
            --cardBg: #161B22;
            --primaryText: #F0F6FC;
            --secondaryText: #8B949E;
            --accent: #3FB950;
            --accentHover: #56D364;
            --customBorder: #30363D;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--darkBg);
            color: var(--primaryText);
            font-family: 'Inter', sans-serif;
            line-height: 1.5;
            -webkit-font-smoothing: antialiased;
        }

        .font-mono {
            font-family: 'JetBrains Mono', monospace;
        }

        /* Container & Layout */
        .container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
        }

        header {
            position: sticky;
            top: 0;
            z-index: 50;
            background-color: rgba(13, 17, 23, 0.9);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--customBorder);
            height: 68px;
            display: flex;
            align-items: center;
        }

        .nav-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .logo {
            font-family: 'JetBrains Mono', monospace;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--primaryText);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color 0.2s ease;
        }

        .logo span {
            color: var(--accent);
        }

        .logo:hover {
            color: var(--accent);
        }

        .nav-links {
            display: flex;
            gap: 32px;
            list-style: none;
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.875rem;
        }

        .nav-links a {
            color: var(--secondaryText);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        .menu-btn {
            display: none;
            background: none;
            border: none;
            color: var(--secondaryText);
            cursor: pointer;
            padding: 8px;
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: 68px;
            left: 0;
            width: 100%;
            background-color: var(--cardBg);
            border-bottom: 1px solid var(--customBorder);
            padding: 20px 24px;
            flex-direction: column;
            gap: 16px;
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.875rem;
        }

        .mobile-menu.active {
            display: flex;
        }

        .mobile-menu a {
            color: var(--secondaryText);
            text-decoration: none;
        }

        .mobile-menu a:hover {
            color: var(--accent);
        }

        .hero {
            min-height: calc(100vh - 68px);
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 64px 0;
        }

        .hero-tag {
            font-family: 'JetBrains Mono', monospace;
            color: var(--accent);
            font-size: 0.95rem;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero h1 {
            font-family: 'JetBrains Mono', monospace;
            font-size: clamp(40px, 6vw, 64px);
            font-weight: 700;
            letter-spacing: -1px;
            margin-bottom: 12px;
        }

        .hero h2 {
            font-family: 'JetBrains Mono', monospace;
            font-size: clamp(22px, 4vw, 32px);
            font-weight: 600;
            color: var(--secondaryText);
            margin-bottom: 24px;
        }

        .hero p {
            font-size: 1.125rem;
            color: var(--secondaryText);
            max-width: 650px;
            margin-bottom: 32px;
            line-height: 1.6;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .btn-primary {
            background-color: var(--accent);
            color: var(--darkBg);
            font-family: 'JetBrains Mono', monospace;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 20px;
            border-radius: 8px;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background-color 0.2s ease, transform 0.2s ease;
            border: none;
            cursor: pointer;
        }

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

        .btn-secondary {
            background: transparent;
            border: 1px solid var(--customBorder);
            color: var(--primaryText);
            font-family: 'JetBrains Mono', monospace;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 20px;
            border-radius: 8px;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: border-color 0.2s ease, background-color 0.2s ease;
            cursor: pointer;
        }

        .btn-secondary:hover {
            border-color: var(--accentHover);
            background-color: rgba(63, 185, 80, 0.05);
        }

        section {
            padding: 96px 0;
            border-top: 1px solid rgba(48, 54, 61, 0.4);
        }

        .section-title {
            font-family: 'JetBrains Mono', monospace;
            font-size: clamp(28px, 4vw, 36px);
            font-weight: 700;
            margin-bottom: 40px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .section-title span {
            color: var(--accent);
            font-size: 0.85em;
        }

        .dev-card {
            background-color: var(--cardBg);
            border: 1px solid var(--customBorder);
            border-radius: 10px;
            padding: 32px;
            transition: border-color 0.2s ease, transform 0.2s ease;
        }

        .dev-card:hover {
            border-color: var(--accentHover);
        }

        .about-text {
            color: var(--secondaryText);
            font-size: 1.125rem;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .skills-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .skill-card {
            background-color: var(--cardBg);
            border: 1px solid var(--customBorder);
            border-radius: 10px;
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 16px;
            transition: border-color 0.2s ease;
        }

        .skill-card:hover {
            border-color: var(--accentHover);
        }

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

        .skill-name {
            font-family: 'JetBrains Mono', monospace;
            font-weight: 600;
            font-size: 1.125rem;
            color: var(--primaryText);
        }

        .skill-badge {
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 20px;
            background-color: rgba(63, 185, 80, 0.1);
            color: var(--accent);
            border: 1px solid rgba(63, 185, 80, 0.2);
        }

        .skill-level {
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.875rem;
            color: var(--secondaryText);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
        }

        .dot-learning {
            background-color: #f59e0b;
        }

        .dot-beginner {
            background-color: var(--secondaryText);
        }

        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .project-card {
            background-color: var(--cardBg);
            border: 1px solid var(--customBorder);
            border-radius: 10px;
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 24px;
            transition: border-color 0.2s ease;
        }

        .project-card:hover {
            border-color: var(--accentHover);
        }

        .project-top {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .project-header-row {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 16px;
        }

        .project-title {
            font-family: 'JetBrains Mono', monospace;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primaryText);
        }

        .project-tag-badge {
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.7rem;
            padding: 4px 10px;
            border-radius: 20px;
            background-color: rgba(63, 185, 80, 0.1);
            color: var(--accent);
            border: 1px solid rgba(63, 185, 80, 0.3);
            white-space: nowrap;
        }

        .project-tag-badge.academic {
            background-color: rgba(139, 148, 158, 0.1);
            color: var(--secondaryText);
            border-color: var(--customBorder);
        }

        .project-desc {
            color: var(--secondaryText);
            font-size: 1rem;
            line-height: 1.6;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .project-focus {
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.8rem;
            color: var(--accent);
            padding-top: 4px;
        }

        .project-footer-row {
            display: flex;
            flex-direction: column;
            gap: 20px;
            border-top: 1px solid rgba(48, 54, 61, 0.6);
            padding-top: 20px;
        }

        .tech-stack {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.75rem;
        }

        .tech-pill {
            background-color: var(--darkBg);
            border: 1px solid var(--customBorder);
            color: var(--primaryText);
            padding: 4px 10px;
            border-radius: 6px;
        }

        .contact-card {
            background-color: var(--cardBg);
            border: 1px solid var(--customBorder);
            border-radius: 10px;
            padding: 40px;
            max-width: 650px;
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .contact-info-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            font-family: 'JetBrains Mono', monospace;
        }

        .contact-item {
            background-color: var(--darkBg);
            border: 1px solid var(--customBorder);
            border-radius: 8px;
            padding: 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }

        .contact-label {
            font-size: 0.75rem;
            color: var(--secondaryText);
            display: block;
            margin-bottom: 4px;
        }

        .contact-val {
            font-size: 0.9rem;
            color: var(--primaryText);
            text-decoration: none;
            font-weight: 500;
        }

        .contact-val:hover {
            color: var(--accent);
        }

        .contact-action {
            font-size: 0.75rem;
            color: var(--accent);
            text-decoration: none;
            white-space: nowrap;
        }

        .contact-action:hover {
            text-decoration: underline;
        }

        footer {
            border-top: 1px solid var(--customBorder);
            padding: 32px 0;
            background-color: var(--darkBg);
            text-align: center;
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.85rem;
            color: var(--secondaryText);
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .menu-btn {
                display: block;
            }
            section {
                padding: 64px 0;
            }
            .contact-card {
                padding: 24px;
            }
            .contact-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }