:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --secondary: #1e293b;
            --light: #f8fafc;
            --dark: #0f172a;
            --gray: #64748b;
            --gray-light: #e2e8f0;
            --html: #e34f26;
            --css: #1572b6;
            --js: #f7df1e;
            --php: #777bb4;
            --python: #3776ab;
            --transition: all 0.3s ease;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
            --border-radius: 12px;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        /* Loading Screen */
        #loading {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--light);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            transition: opacity 0.5s;
        }

        .loader {
            width: 40px;
            height: 40px;
            border: 3px solid var(--gray-light);
            border-top: 3px solid var(--primary);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

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

        /* Navigation */
        nav {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            padding: 1.2rem 0;
            box-shadow: var(--shadow);
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-family: 'Poppins', sans-serif;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
        }

        .nav-links {
            display: flex;
            gap: 2rem;
            list-style: none;
        }

        .nav-links a {
            color: var(--dark);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            font-size: 0.95rem;
        }

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

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--dark);
            cursor: pointer;
        }

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

        .hero-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .hero-text h1 {
            font-family: 'Poppins', sans-serif;
            font-size: 3rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.5rem;
            line-height: 1.2;
        }

        .hero-text h2 {
            font-size: 1.5rem;
            color: var(--gray);
            font-weight: 400;
            margin-bottom: 1.5rem;
        }

        .hero-text p {
            font-size: 1.1rem;
            color: var(--gray);
            margin-bottom: 2rem;
            max-width: 500px;
        }

        .tech-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-top: 1.5rem;
        }

        .tech-badge {
            padding: 0.5rem 1rem;
            border-radius: 20px;
            font-weight: 500;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .tech-badge.html { background: rgba(227, 79, 38, 0.1); color: var(--html); border: 1px solid rgba(227, 79, 38, 0.3); }
        .tech-badge.css { background: rgba(21, 114, 182, 0.1); color: var(--css); border: 1px solid rgba(21, 114, 182, 0.3); }
        .tech-badge.js { background: rgba(247, 223, 30, 0.1); color: #8b7500; border: 1px solid rgba(247, 223, 30, 0.3); }
        .tech-badge.php { background: rgba(119, 123, 180, 0.1); color: var(--php); border: 1px solid rgba(119, 123, 180, 0.3); }
        .tech-badge.python { background: rgba(55, 118, 171, 0.1); color: var(--python); border: 1px solid rgba(55, 118, 171, 0.3); }

        .hero-image {
            text-align: center;
        }

        .code-display {
            background: var(--dark);
            border-radius: var(--border-radius);
            padding: 2rem;
            box-shadow: var(--shadow-lg);
            text-align: left;
            overflow: hidden;
            position: relative;
        }

        .code-header {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
        }

        .code-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
        }

        .dot-red { background: #ff5f56; }
        .dot-yellow { background: #ffbd2e; }
        .dot-green { background: #27ca3f; }

        .code-content {
            font-family: 'Courier New', monospace;
            color: #e2e8f0;
            font-size: 0.9rem;
            line-height: 1.5;
        }

        .code-line {
            margin-bottom: 0.5rem;
        }

        .code-comment { color: #64748b; }
        .code-tag { color: #ff6b6b; }
        .code-attr { color: #4ecdc4; }
        .code-value { color: #ffe66d; }
        .code-var { color: #9d65c9; }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            font-family: 'Inter', sans-serif;
            font-size: 0.95rem;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-2px);
        }

        /* Sections */
        .section {
            padding: 100px 0;
        }

        .section-title {
            font-family: 'Poppins', sans-serif;
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 3rem;
            text-align: center;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        /* Skills Section */
        .skills-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .skill-category {
            background: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .skill-category:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }

        .category-header {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }

        .category-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: white;
        }

        .icon-html { background: var(--html); }
        .icon-css { background: var(--css); }
        .icon-js { background: var(--js); color: #333; }
        .icon-php { background: var(--php); }
        .icon-python { background: var(--python); }

        .skill-items {
            list-style: none;
        }

        .skill-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.8rem 0;
            border-bottom: 1px solid var(--gray-light);
        }

        .skill-item:last-child {
            border-bottom: none;
        }

        .skill-level {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .level-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--gray-light);
        }

        .level-dot.active {
            background: var(--primary);
        }

        /* Projects Section */
        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
        }

        .project-card {
            background: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .project-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }

        .project-header {
            height: 180px;
            position: relative;
            overflow: hidden;
        }

        .project-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, var(--primary), #4f46e5);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 3rem;
        }

        .project-tech {
            position: absolute;
            bottom: 1rem;
            left: 1rem;
            display: flex;
            gap: 0.5rem;
        }

        .project-tech span {
            background: rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(10px);
            color: white;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
        }

        .project-content {
            padding: 1.5rem;
        }

        .project-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin: 1rem 0;
        }

        .project-tag {
            background: var(--gray-light);
            color: var(--gray);
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.85rem;
        }

        /* Contact Section */
        .contact-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 3rem;
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem;
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }

        .contact-icon {
            width: 50px;
            height: 50px;
            background: var(--gray-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.2rem;
        }

        .social-links {
            display: flex;
            gap: 1rem;
            margin-top: 2rem;
        }

        .social-link {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: white;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gray);
            font-size: 1.2rem;
            text-decoration: none;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }

        .social-link:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-3px);
        }

        .contact-form {
            background: white;
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: var(--dark);
        }

        .form-control {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid var(--gray-light);
            border-radius: 8px;
            font-family: 'Inter', sans-serif;
            font-size: 1rem;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }

        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }

        /* Footer */
        footer {
            background: var(--dark);
            color: white;
            padding: 4rem 0 2rem;
        }

        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
        }

        .footer-logo {
            font-family: 'Poppins', sans-serif;
            font-size: 1.5rem;
            font-weight: 700;
            color: white;
            text-decoration: none;
            margin-bottom: 1rem;
            display: inline-block;
        }

        .footer-links h4 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            font-family: 'Poppins', sans-serif;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 0.8rem;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: white;
        }

        .copyright {
            text-align: center;
            padding-top: 3rem;
            margin-top: 3rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
        }

        /* Back to Top */
        .back-to-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 50px;
            height: 50px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 99;
            box-shadow: var(--shadow);
        }

        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }

        .back-to-top:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
        }

        /* Responsive */
        @media (max-width: 992px) {
            .hero-content {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .hero-text h1 {
                font-size: 2.5rem;
            }

            .code-display {
                order: -1;
                max-width: 500px;
                margin: 0 auto;
            }

            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                padding: 2rem;
                box-shadow: var(--shadow);
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
            }

            .nav-links.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .mobile-menu-btn {
                display: block;
            }
        }

        @media (max-width: 768px) {
            .hero-text h1 {
                font-size: 2rem;
            }

            .section-title {
                font-size: 2rem;
            }

            .section {
                padding: 70px 0;
            }

            .tech-badges {
                justify-content: center;
            }
        }

        /* Animations */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s, transform 0.6s;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Skill Progress */
        .skill-progress {
            height: 8px;
            background: var(--gray-light);
            border-radius: 4px;
            margin-top: 0.5rem;
            overflow: hidden;
        }

        .progress-bar {
            height: 100%;
            border-radius: 4px;
            transition: width 1s ease;
        }

        .progress-html { background: var(--html); width: 90%; }
        .progress-css { background: var(--css); width: 85%; }
        .progress-js { background: var(--js); width: 80%; }
        .progress-php { background: var(--php); width: 75%; }
        .progress-python { background: var(--python); width: 70%; }
        .progress-react { background: #61dafb; width: 75%; }
        .progress-node { background: #339933; width: 70%; }
        .progress-sql { background: #4479a1; width: 80%; }
        .progress-git { background: #f1502f; width: 85%; }