:root {
            --primary: #0033ff;
            --primary-glow: rgba(0, 51, 255, 0.4);
            --bg-dark: #010010;
            --card-bg: rgba(10, 10, 35, 0.8);
            --text-main: #ffffff;
            --text-dim: #aeb5d9;
            --accent: #3b82f6;
            --sidebar-width: clamp(240px, 20vw, 300px);
        }

        * { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Poppins', sans-serif; }
        
        body {
            background: var(--bg-dark);
            color: var(--text-main);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column; /* Mobile first stack */
        }

        /* --- Ambient Background --- */
        .bg-glow {
            position: fixed;
            inset: 0;
            background: 
                radial-gradient(circle at 15% 20%, #1a1a50aa, transparent 40%),
                radial-gradient(circle at 85% 70%, #0033ff44, transparent 40%);
            filter: blur(80px); /* Optimized for mobile */
            z-index: -2;
        }

        .grid-overlay {
            position: fixed;
            inset: 0;
            background-image: linear-gradient(rgba(10, 10, 42, 0.2) 1px, transparent 1px),
                              linear-gradient(90deg, rgba(10, 10, 42, 0.2) 1px, transparent 1px);
            background-size: 50px 50px;
            z-index: -1;
        }

        /* --- Mobile Overlay --- */
        .sidebar-overlay {
            display: none; position: fixed; inset: 0;
            background: rgba(0, 0, 0, 0.5); backdrop-filter: blur(4px);
            z-index: 999; opacity: 0; transition: opacity 0.3s ease;
        }
        .sidebar-overlay.active { display: block; opacity: 1; }

        /* --- Sidebar --- */
        nav.sidebar {
            position: fixed; left: 0; top: 0; height: 100vh;
            width: 280px; /* Fixed mobile width */
            background: rgba(2, 2, 20, 0.9); backdrop-filter: blur(15px);
            border-right: 1px solid rgba(255, 255, 255, 0.05);
            display: flex; flex-direction: column; padding: 2.5rem 1.5rem;
            z-index: 1000; transform: translateX(-100%);
            transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            overflow-y: auto;
        }
        nav.sidebar.active { transform: translateX(0); }

        .profile-container { text-align: center; margin-bottom: 2rem; }
        .profile-img {
            width: 100%; max-width: 100px; aspect-ratio: 1/1; border-radius: 50%;
            border: 3px solid var(--primary); padding: 5px;
            box-shadow: 0 0 20px var(--primary-glow); object-fit: cover;
        }

        .nav-links { display: flex; flex-direction: column; gap: 0.5rem; }
        .nav-links a {
            display: flex; align-items: center; padding: 0.75rem 1rem;
            color: var(--text-dim); text-decoration: none; border-radius: 12px;
            transition: 0.3s; font-size: 0.95rem;
        }
        .nav-links a i { width: 25px; font-size: 1.1rem; }
        .nav-links a span { margin-left: 10px; }
        .nav-links a:hover, .nav-links a.active {
            background: rgba(0, 51, 255, 0.15); color: #fff; transform: translateX(5px);
        }

        /* --- Mobile Toggle --- */
        .mobile-toggle {
            display: flex; align-items: center; justify-content: center;
            position: fixed; top: 1rem; right: 1rem; z-index: 2000;
            background: var(--primary); width: 3rem; height: 3rem; border-radius: 12px;
            border: none; color: white; font-size: 1.5rem; cursor: pointer;
            box-shadow: 0 4px 15px var(--primary-glow); transition: transform 0.2s;
        }
        .mobile-toggle:active { transform: scale(0.95); }

        /* --- Main Content Area --- */
        main {
            flex: 1; width: 100%;
            padding: 5rem 1.5rem 6rem; /* Mobile spacing */
            transition: 0.4s; display: flex; justify-content: center;
        }

        .content-wrapper {
            max-width: 1000px; width: 100%; display: flex;
            flex-direction: column; gap: 1.5rem; animation: slideUp 0.8s ease-out;
        }

        @keyframes slideUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .glass-card {
            background: var(--card-bg); border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 24px; padding: 2rem 1.5rem; /* Reduced padding for mobile */
            backdrop-filter: blur(20px); box-shadow: 0 20px 50px rgba(0,0,0,0.3);
            position: relative; overflow: hidden;
        }

        /* Profile Header Card */
        .about-header { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 1.5rem; }
        .about-header .bg-icon {
            display: none; /* Hide huge icon on mobile */
            position: absolute; right: 20px; top: -10px; font-size: 10rem;
            color: rgba(255, 255, 255, 0.03); z-index: 0; pointer-events: none;
        }
        .about-avatar {
            width: 140px; height: 140px; border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), #00d2ff);
            padding: 4px; box-shadow: 0 0 40px var(--primary-glow);
            flex-shrink: 0; z-index: 1;
        }
        .about-avatar img { width: 100%; height: 100%; border-radius: 50%; border: 6px solid var(--bg-dark); object-fit: cover; }
        
        .about-info { z-index: 1; width: 100%; }
        .about-info h2 { color: var(--accent); font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; margin-bottom: 10px; letter-spacing: 2px; }
        .about-info h1 { font-size: clamp(1.8rem, 4vw, 2.5rem); line-height: 1.2; margin-bottom: 20px; }
        
        .shimmer {
            background: linear-gradient(90deg, var(--accent), #ffffff, var(--accent));
            background-size: 200% auto; background-clip: text;
            color: transparent; animation: shimmer 3s linear infinite;
        }
        @keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
        
        .age-box {
            display: inline-flex; flex-direction: column; align-items: center; padding: 15px; width: 100%;
            background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: 16px;
        }
        .age-box span:first-child { color: var(--text-dim); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 5px; }
        .age-box #age-counter { 
            font-family: 'JetBrains Mono', monospace; font-size: 0.95rem; font-weight: bold; 
            color: var(--accent); font-variant-numeric: tabular-nums; 
            white-space: normal; line-height: 1.5; /* Allows nice wrapping on small screens */
        }

        /* Milestone Card */
        .milestone-card { 
            background: linear-gradient(90deg, rgba(0, 51, 255, 0.1), transparent); 
            border: 1px solid rgba(0, 51, 255, 0.3); 
            display: flex; flex-direction: column; align-items: center; text-align: center; gap: 1.5rem; 
        }
        .milestone-icon { 
            width: 70px; height: 70px; background: rgba(0, 51, 255, 0.2); border-radius: 50%; 
            display: flex; align-items: center; justify-content: center; font-size: 1.8rem; 
            color: var(--accent); flex-shrink: 0; transition: 0.3s; 
        }
        .milestone-card:hover .milestone-icon { transform: scale(1.1); box-shadow: 0 0 20px var(--primary-glow); }
        .milestone-text h3 { color: var(--accent); font-family: 'JetBrains Mono', monospace; font-size: 0.85rem; letter-spacing: 2px; margin-bottom: 5px; text-transform: uppercase; }
        .milestone-text p { font-size: 1rem; line-height: 1.6; color: var(--text-main); }
        .highlight { color: #00d2ff; }

        /* Grids */
        .grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); gap: 1.5rem; }
        .grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 350px), 1fr)); gap: 1.5rem; }
        
        .feature-box { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.05); padding: 2rem; border-radius: 20px; transition: 0.3s; }
        .feature-box:hover { background: rgba(0, 51, 255, 0.1); transform: translateY(-5px); border-color: rgba(0, 51, 255, 0.3); }
        .feature-box i { font-size: 2rem; color: var(--accent); margin-bottom: 15px; }
        .feature-box h3 { font-size: 1.2rem; margin-bottom: 10px; }
        .feature-box p { color: var(--text-dim); font-size: 0.95rem; line-height: 1.6; }

        .list-box h3 { font-size: 1.3rem; margin-bottom: 1.5rem; display: flex; align-items: center; gap: 15px; }
        .list-box h3::before { content: ''; display: block; width: 6px; height: 25px; background: var(--primary); border-radius: 10px; }
        .list-box h3.cyan::before { background: #00d2ff; }
        .list-box ul { list-style: none; display: flex; flex-direction: column; gap: 15px; }
        .list-box ul li { color: var(--text-dim); display: flex; align-items: center; gap: 15px; font-size: 1rem; }
        .list-box ul li span { color: var(--accent); font-family: 'JetBrains Mono', monospace; }
        
        .tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
        .tag { padding: 8px 16px; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: 12px; font-size: 0.9rem; transition: 0.3s; cursor: default; }
        .tag:hover { border-color: var(--primary); box-shadow: 0 0 15px var(--primary-glow); background: rgba(0, 51, 255, 0.1); }

        /* --- Particles --- */
        .particle { position: fixed; background: var(--primary); border-radius: 50%; pointer-events: none; z-index: -1; opacity: 0.4; }

        /* --- Footer --- */
        footer {
            position: fixed; bottom: 0; width: 100%; padding: 1rem;
            text-align: center; font-size: 0.8rem; color: var(--text-dim);
            background: rgba(1, 0, 16, 0.8); backdrop-filter: blur(10px);
            border-top: 1px solid rgba(255,255,255,0.05); z-index: 100;
        }

        /* =========================================
           RESPONSIVE BREAKPOINTS
           ========================================= */

        /* --- Tablet (768px and up) --- */
        @media (min-width: 768px) {
            main { padding: 5rem 2.5rem 6rem; }
            .content-wrapper { gap: 2rem; }
            .glass-card { padding: 2.5rem; }
            
            .about-header { flex-direction: row; text-align: left; }
            .about-header .bg-icon { display: block; }
            .about-avatar { width: 180px; height: 180px; }
            .age-box { align-items: flex-start; width: auto; padding: 15px 24px; }
            .age-box #age-counter { font-size: 1.15rem; white-space: nowrap; }
            
            .milestone-card { flex-direction: row; text-align: left; }
        }

        /* --- Desktop (1024px and up) --- */
        @media (min-width: 1024px) {
            body { flex-direction: row; }
            .mobile-toggle { display: none; }
            .sidebar-overlay { display: none !important; }
            
            nav.sidebar { transform: translateX(0); width: var(--sidebar-width); }
            main { margin-left: var(--sidebar-width); padding: 4rem 3rem 6rem; }
            footer { width: calc(100% - var(--sidebar-width)); left: var(--sidebar-width); }
            .bg-glow { filter: blur(120px); }
        }


        /* d */
         /* d */