/* 🎨 Advanced Structural Theme Engine */
        :root {
            /* Dark Mode Baseline (Default) */
            --bg-color: #04060a;
            --header-bg: rgba(4, 6, 10, 0.7);
            --card-bg: rgba(255, 255, 255, 0.02);
            --card-hover-bg: rgba(255, 255, 255, 0.04);
            --card-border: rgba(255, 255, 255, 0.05);
            --text-primary: #f3f4f6;
            --text-secondary: #9ca3af;
            --accent-cyan: #00f2fe;
            --accent-blue: #4facfe;
            --shape-bg: rgba(0, 242, 254, 0.03);
            --shape-border: rgba(0, 242, 254, 0.2);
            --primary-gradient: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
        }

        [data-theme="light"] {
            /* Light Mode Baseline (Optimized for Readability) */
            --bg-color: #f8fafc;
            --header-bg: rgba(248, 250, 252, 0.7);
            --card-bg: rgba(0, 0, 0, 0.02);
            --card-hover-bg: rgba(0, 0, 0, 0.04);
            --card-border: rgba(0, 0, 0, 0.06);
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --accent-cyan: #0284c7;
            --accent-blue: #2563eb;
            --shape-bg: rgba(37, 99, 219, 0.05);
            --shape-border: rgba(37, 99, 219, 0.25);
            --primary-gradient: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Plus Jakarta Sans', sans-serif;
            scroll-behavior: smooth;
            transition: background-color 0.3s, border-color 0.3s, color 0.3s;
        }

        body {
            background-color: var(--bg-color);
            color: var(--text-primary);
            overflow-x: hidden;
        }

        p {
            line-height: 1.7;
            color: var(--text-secondary);
            font-size: 1rem;
        }

        /* Navigation Header */
        header {
            position: fixed;
            top: 1.5rem;
            left: 50%;
            transform: translateX(-50%);
            width: 90%;
            max-width: 1200px;
            padding: 0.8rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            z-index: 100;
            background: var(--header-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--card-border);
            border-radius: 100px;
        }

        .logo {
            font-size: 1.1rem;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 0.5px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 40px;
        }

        nav a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            display: inline-block; 
            margin-right: 25px;
        }

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

        /* Modern Theme Toggle Switch */
        .theme-toggle-btn {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            color: var(--text-primary);
            padding: 0.5rem 1rem;
            border-radius: 50px;
            cursor: pointer;
            font-size: 0.8rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .theme-toggle-btn:hover {
            border-color: var(--accent-cyan);
        }

        /* Hero Split Section Layout */
        .hero {
            min-height: 100vh;
            display: grid;
            grid-template-columns: 55% 45%;
            align-items: center;
            padding: 0 1.5rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .hero-text {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }

        .badge {
            background: var(--shape-bg);
            border: 1px solid var(--shape-border);
            padding: 0.6rem 1.2rem;
            border-radius: 100px;
            font-size: 0.75rem;
            color: var(--accent-cyan);
            margin-bottom: 1rem;
            margin-top: 3.5rem;
            letter-spacing: 2px;
            text-transform: uppercase;
            font-weight: 700;
        }

        .hero h1 {
            font-size: 3.5rem;
            font-weight: 450;
            line-height: 1.5;
            letter-spacing: -1px;
            margin-bottom: 1.5rem;
            font-family:'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
        }

        .hero h1 span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 1.5rem;
            margin-bottom: 2.5rem;
            max-width: 550px;
        }

        /* 🌐 Cool Abstract Hardware/Systems Graphic Node */
        .hero-graphic {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
            height: 400px;
        }

        .tech-node-outer {
            width: 260px;
            height: 260px;
            border: 2px dashed var(--shape-border);
            border-radius: 35% 65% 70% 30% / 50% 40% 60% 50%;
            position: absolute;
            animation: rotateNode 12s infinite linear;
        }

        .tech-node-inner {
            width: 180px;
            height: 180px;
            border: 2px solid var(--accent-cyan);
            border-radius: 60% 40% 30% 70% / 60% 50% 50% 40%;
            position: absolute;
            animation: rotateNodeReverse 8s infinite linear;
            background: var(--shape-bg);
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .tech-core {
            width: 50px;
            height: 50px;
            background: var(--primary-gradient);
            border-radius: 12px;
            box-shadow: 0 0 20px var(--accent-blue);
            transform: rotate(45deg);
            animation: pulseCore 3s infinite alternate ease-in-out;
        }

        @keyframes rotateNode {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        @keyframes rotateNodeReverse {
            0% { transform: rotate(360deg); }
            100% { transform: rotate(0deg); }
        }

        @keyframes pulseCore {
            0% { transform: rotate(45deg) scale(0.9); opacity: 0.8; }
            100% { transform: rotate(45deg) scale(1.1); opacity: 1; }
        }

        .btn {
            padding: 0.9rem 2.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .btn-primary {
            background: var(--primary-gradient);
            color: #ffffff;
        }

        [data-theme="light"] .btn-primary { color: #ffffff; }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 20px rgba(0, 242, 254, 0.3);
        }

        /* Layout Structure */
        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        section { padding: 7rem 0; }

        .section-tag {
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent-blue);
            font-weight: 700;
            margin-bottom: 0.5rem;
            display: block;
        }

        .section-title {
            font-size: 2.3rem;
            font-weight: 800;
            margin-bottom: 3.5rem;
            letter-spacing: -0.5px;
        }

        .section-title span { color: var(--accent-cyan); }

        /* Asymmetric Layout (About Section) */
        .split-layout {
            display: grid;
            grid-template-columns: 40% 60%;
            gap: 4rem;
            align-items: center;
        }

        .profile-frame {
            position: relative;
            width: 300px;
            height: 300px;
            border-radius: 24px;
            border: 1px solid var(--card-border);
            background: var(--card-bg);
            padding: 0.75rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25),      
            inset 0 1px 2px rgba(255, 255, 255, 0.15); 
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
            .profile-frame:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35), 
            inset 0 1px 2px rgba(255, 255, 255, 0.2);
}

        .profile-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 16px;
        }

        /* Grid Layout (Expertise) */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .premium-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 20px;
            padding: 2.5rem;
        }

        .premium-card:hover {
            transform: translateY(-5px);
            background: var(--card-hover-bg);
            border-color: var(--accent-cyan);
        }

        .card-icon {
            font-size: 1.5rem;
            color: var(--accent-cyan);
            margin-bottom: 1.2rem;
        }

        .premium-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        /* Timeline Layout (Deployments) */
        .timeline-list {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .timeline-item {
            background: var(--card-bg);
            border-left: 3px solid var(--accent-blue);
            padding: 2rem 2.5rem;
            border-radius: 0 16px 16px 0;
        }
        .timeline-item a{
            text-decoration: none;
            color: var(--accent-cyan);
            font-size: 15px;
        }

        .timeline-item:hover {
            background: var(--card-hover-bg);
            border-left-color: var(--accent-cyan);
        }

        .project-tag {
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--accent-cyan);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 0.5rem;
            display: inline-block;
        }

        /* Row Layout (Publications) */
        .minimal-row {
            display: flex;
            align-items: center;
            padding: 1.5rem 0;
            border-bottom: 1px solid var(--card-border);
        }

        .row-icon {
            font-size: 1.3rem;
            margin-right: 2rem;
            color: var(--accent-blue);
        }
        #specialtext{
            font-size: 15px;
        }
        .minimal-row a{
            text-decoration: none;
            font-size: 15px;
            color: rgb(233, 138, 13);
        }

        footer {
            text-align: center;
            padding: 5rem 1.5rem;
            border-top: 1px solid var(--card-border);
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        /* Responsive Optimization */
        @media (max-width: 968px) {
            .hero { grid-template-columns: 1fr; padding-top: 8rem; text-align: center; }
            .hero-text { align-items: center; }
            .hero-graphic { height: 320px; order: -1; }
            .split-layout { grid-template-columns: 1fr; gap: 3rem; text-align: center; }
            .profile-frame { margin: 0 auto; }
            .grid-3 { grid-template-columns: 1fr; }
            header { padding: 1rem; width: 95%; }
            nav { display: none; }
        }