@import url('https://fonts.googleapis.com/css2?family=Kalam:wght@300;400;700&family=Inter:wght@300;400;500;600&display=swap');
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        :root {
            /* Light theme (default) */
            --bg-gradient-start: #f5f7fa;
            --bg-gradient-end: #e4e7f1;
            --notebook-bg: rgba(255, 255, 255, 0.8);
            --text-primary: #2a2a4a;
            --text-secondary: #6a6a8a;
            --text-content: #4a4a6a;
            --accent-color: #3a3a6a;
            --link-color: #5a7aff;
            --link-hover: #3a5aff;
            --card-bg: rgba(255, 255, 255, 0.6);
            --card-border: rgba(200, 200, 220, 0.4);
            --line-color: rgba(200, 200, 220, 0.3);
            --margin-line: rgba(255, 100, 100, 0.2);
            --doodle-opacity: 0.15;
            --shadow: rgba(31, 38, 135, 0.1);
        }
        
        [data-theme="dark"] {
            --bg-gradient-start: #1a1a2e;
            --bg-gradient-end: #16213e;
            --notebook-bg: rgba(30, 30, 50, 0.8);
            --text-primary: #e0e0ff;
            --text-secondary: #a0a0c0;
            --text-content: #c0c0e0;
            --accent-color: #b0b0ff;
            --link-color: #7f9fff;
            --link-hover: #5f7fff;
            --card-bg: rgba(40, 40, 60, 0.6);
            --card-border: rgba(100, 100, 150, 0.3);
            --line-color: rgba(100, 100, 150, 0.2);
            --margin-line: rgba(255, 150, 150, 0.2);
            --doodle-opacity: 0.2;
            --shadow: rgba(0, 0, 0, 0.3);
        }
        
        [data-theme="sepia"] {
            --bg-gradient-start: #f4f1e8;
            --bg-gradient-end: #e8e0d0;
            --notebook-bg: rgba(251, 248, 243, 0.9);
            --text-primary: #5c4033;
            --text-secondary: #8b4513;
            --text-content: #704214;
            --accent-color: #8b4513;
            --link-color: #a0522d;
            --link-hover: #8b4513;
            --card-bg: rgba(255, 252, 248, 0.7);
            --card-border: rgba(210, 180, 140, 0.4);
            --line-color: rgba(210, 180, 140, 0.3);
            --margin-line: rgba(180, 100, 100, 0.2);
            --doodle-opacity: 0.18;
            --shadow: rgba(139, 69, 19, 0.1);
        }
        
        [data-theme="forest"] {
            --bg-gradient-start: #e8f5e9;
            --bg-gradient-end: #d0e8d0;
            --notebook-bg: rgba(248, 255, 248, 0.85);
            --text-primary: #2e4a2e;
            --text-secondary: #5a7a5a;
            --text-content: #4a6a4a;
            --accent-color: #4a7c59;
            --link-color: #6b9b6b;
            --link-hover: #5a8b5a;
            --card-bg: rgba(255, 255, 255, 0.65);
            --card-border: rgba(180, 210, 180, 0.4);
            --line-color: rgba(180, 210, 180, 0.3);
            --margin-line: rgba(150, 200, 150, 0.3);
            --doodle-opacity: 0.16;
            --shadow: rgba(74, 124, 89, 0.1);
        }
        
        body {
            font-family: 'Inter', sans-serif;
            background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding:90px 20px 30px;
            transition: background 0.3s ease;
        }
        
        .notebook {
            background: var(--notebook-bg);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            max-width: 900px;
            width: 100%;
            min-height: 80vh;
            margin: 20px auto;
            position: relative;
            box-shadow: 0 15px 45px rgba(0,0,0,.25);
            border-radius: 8px;
            overflow: hidden;
            background-image: 
                repeating-linear-gradient(
                    transparent,
                    transparent 30px,
                    var(--line-color) 30px,
                    var(--line-color) 31px
                );
            transition: all 0.3s ease;
        }
        
        .notebook::before {
            content: '';
            position: absolute;
            top: 0;
            left: 80px;
            bottom: 0;
            width: 1px;
            background: var(--margin-line);
            z-index: 1;
            transition: background 0.3s ease;
        }
        
        .paper-texture {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            opacity: 0.05;
            background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='turbulence' baseFrequency='0.9' numOctaves='4' /%3E%3C/filter%3E%3C/defs%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' /%3E%3C/svg%3E");
            pointer-events: none;
        }
        
        .content {
            padding: 60px 100px 60px 120px;
            position: relative;
            z-index: 2;
        }
        
        header {
            margin-bottom: 50px;
        }
        
        h1 {
            font-family: 'Kalam', cursive;
            font-size: 3.2em;
            color: var(--text-primary);
            font-weight: 400;
            margin-bottom: 10px;
            letter-spacing: -0.5px;
            transform: rotate(-1deg);
            text-shadow: 1px 1px 2px rgba(0,0,0,0.05);
            transition: color 0.3s ease;
            text-align: center;
        }
        
        .subtitle {
            font-family:'Inter', sans-serif;
            font-size:1.2rem;
            color: var(--text-secondary);
            font-weight: 400;
            margin-left: 5px;
            transform: rotate(-0.5deg);
            transition: color 0.3s ease;
            letter-spacing:.3px;
        }
        
        .section {
            margin-bottom: 40px;
        }
        
        h2 {
            font-family: 'Kalam', cursive;
            font-size: 1.8em;
            color: var(--text-primary);
            font-weight: 400;
            margin-bottom: 15px;
            transform: rotate(-0.3deg);
            position: relative;
            display: inline-block;
            transition: color 0.3s ease;
        }
        
        h2::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
            opacity: 0.3;
        }
        
        p {
            color: var(--text-content);
            line-height: 1.8;
            font-weight: 300;
            margin-bottom: 15px;
            font-size: 1.05em;
            transition: color 0.3s ease;
        }
        
        .projects {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
            margin-top: 25px;
        }
        
        .project-card {
            background: var(--card-bg);
            padding: 20px;
            border-radius: 8px;
            transition: all 0.3s ease;
            border: 1px solid var(--card-border);
            backdrop-filter: blur(5px);
            -webkit-backdrop-filter: blur(5px);
        }
        
        .project-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px var(--shadow);
            background: var(--notebook-bg);
        }
        
        .project-card h3 {
            font-family: 'Kalam', cursive;
            color: var(--accent-color);
            margin-bottom: 8px;
            font-weight: 400;
            transition: color 0.3s ease;
        }
        
        .project-card p {
            color: var(--text-content);
        }
        
        .contact-info {
            margin-top: 30px;
            padding-top: 20px;
        }
        
        .contact-info a {
            color: var(--link-color);
            text-decoration: none;
            font-weight: 400;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .contact-info a:hover {
            color: var(--link-hover);
        }
        
        .contact-info a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 1px;
            background: var(--link-color);
            transition: width 0.3s ease;
        }
        
        .contact-info a:hover::after {
            width: 100%;
        }
        
        .doodle {
            position: absolute;
            opacity: var(--doodle-opacity);
            z-index: 3;
            transition: opacity 0.3s ease;
        }
        
        .doodle-lightbulb {
            top: 40px;
            right: 40px;
            width: 40px;
            height: 40px;
        }
        
        .doodle-pen {
            bottom: 40px;
            right: 40px;
            width: 35px;
            height: 35px;
        }
        
        .doodle-gear {
            bottom: 40px;
            left: 40px;
            width: 38px;
            height: 38px;
        }
        
        /* Theme Switcher */
        .theme-switcher {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 100;
            display: flex;
            gap: 10px;
            background: var(--notebook-bg);
            padding: 10px;
            border-radius: 30px;
            box-shadow: 0 4px 20px var(--shadow);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--card-border);
        }
        
        .theme-btn {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .theme-btn:hover {
            transform: scale(1.1);
        }
        
        .theme-btn.active {
            border-color: var(--accent-color);
            box-shadow: 0 0 0 2px var(--notebook-bg), 0 0 0 4px var(--accent-color);
        }
        
        .theme-btn.light {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e7f1 100%);
        }
        
        .theme-btn.dark {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
        }
        
        .theme-btn.sepia {
            background: linear-gradient(135deg, #f4f1e8 0%, #e8e0d0 100%);
        }
        
        .theme-btn.forest {
            background: linear-gradient(135deg, #e8f5e9 0%, #d0e8d0 100%);
        }
        
        @media (max-width: 768px) {
            .content {
                padding: 40px 30px 40px 60px;
            }
            
            h1 {
                font-size: 2.5em;
            }
            
            .notebook::before {
                left: 40px;
            }
            
            .projects {
                grid-template-columns: 1fr;
            }
            
            .doodle {
                opacity: calc(var(--doodle-opacity) * 0.7);
            }
            
            .theme-switcher {
                top: 10px;
                right: 10px;
                padding: 8px;
                gap: 8px;
            }
            
            .theme-btn {
                width: 25px;
                height: 25px;
            }
        }

        /* ===========================
           Floating Navigation
        =========================== */


        .top-nav{
            position:fixed;
            top:22px;
            left:50%;
            transform:translateX(-50%);
            overflow-x:auto;
            white-space:nowrap;
        
            display:flex;
            gap:14px;
        
            padding: 10px 16px;
            scrollbar-width:none;
        
            background:var(--card-bg);
            backdrop-filter:blur(6px);
            -webkit-backdrop-filter:blur(10px);
        
            border:1px solid var(--card-border);
            border-radius:999px;
        
            box-shadow:0 8px 25px var(--shadow);
        
            z-index:9999;
        }
        .top-nav::-webkit-scrollbar{
            display:none;
        }

        .nav-btn{
            text-decoration:none;
        
            color:var(--text-primary);
        
            font-family:'Inter', sans-serif;
            font-size:16px;
            font-weight:600;
            letter-spacing:.4px;
        
            padding:10px 18px;
        
            border-radius:999px;
        
            transition:all .25s ease;
        }

        .nav-btn:hover{
            background:var(--card-bg);
        
            transform:translateY(-2px);
        }

        .nav-btn.active{
            background:var(--accent-color);
            color:white;
        }

        .nav-btn{
            transition:.25s;
        }

        .nav-btn:hover{
            transform:translateY(-2px);
        }

        .nav-btn:active{
            transform:translateY(0);
        }

        /* =========================================
           Mobile Warning
        ========================================= */
            
        .mobile-warning{
            display:none;
        }
        
        @media (max-width:768px){
        
            .mobile-warning{
            
                display:flex;
            
                position:fixed;
            
                inset:0;
            
                background:#f8f5ec;
            
                color:#2d2d2d;
            
                justify-content:center;
            
                align-items:center;
            
                flex-direction:column;
            
                text-align:center;
            
                padding:40px;
            
                z-index:99999;
            }
        
            .mobile-warning h1{
            
                margin-bottom:15px;
            
                font-family:'Kalam', cursive;
            }
        
            .mobile-warning p{
            
                max-width:350px;
            
                line-height:1.8;
            }
        
            .notebook,
            .theme-switcher,
            .top-nav{
            
                display:none;
            }
        
        }