* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
        }

        :root {
            --bg-primary: #ffffff;
            --bg-secondary: #f8f9fa;
            --text-primary: #1a1a1a;
            --text-secondary: #6b7280;
            --accent: #2563eb;
            --accent-hover: #1d4ed8;
            --border: #e5e7eb;
            --shadow: rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }

        [data-theme="dark"] {
            --bg-primary: #0f172a;
            --bg-secondary: #1e293b;
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --accent: #3b82f6;
            --accent-hover: #2563eb;
            --border: #334155;
            --shadow: rgba(0, 0, 0, 0.3);
        }

        /* Modern Preloader Styles */
        .preloader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            z-index: 10000;
            opacity: 1;
            visibility: visible;
            transition: opacity 0.6s ease, visibility 0.6s ease;
        }

        .preloader.hidden {
            opacity: 0;
            visibility: hidden;
        }

        /* Cool Wave Loading Animation */
        .wave-loader {
            display: flex;
            gap: 4px;
            margin-bottom: 2rem;
        }

        .wave-bar {
            width: 4px;
            height: 40px;
            background: linear-gradient(to top, var(--accent), var(--accent-hover));
            border-radius: 2px;
            animation: wave 1.2s ease-in-out infinite;
        }

        .wave-bar:nth-child(1) { animation-delay: 0s; }
        .wave-bar:nth-child(2) { animation-delay: 0.1s; }
        .wave-bar:nth-child(3) { animation-delay: 0.2s; }
        .wave-bar:nth-child(4) { animation-delay: 0.3s; }
        .wave-bar:nth-child(5) { animation-delay: 0.4s; }

        @keyframes wave {
            0%, 40%, 100% {
                transform: scaleY(0.4);
                opacity: 0.5;
            }
            20% {
                transform: scaleY(1);
                opacity: 1;
            }
        }

        .loader-text {
            color: var(--text-primary);
            font-size: 1.1rem;
            font-weight: 600;
            animation: pulse 2s ease-in-out infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 0.6; }
            50% { opacity: 1; }
        }

        /* Particle Background for Preloader */
        .particles {
            position: absolute;
            width: 100%;
            height: 100%;
            overflow: hidden;
        }

        .particle {
            position: absolute;
            width: 3px;
            height: 3px;
            background: var(--accent);
            border-radius: 50%;
            opacity: 0.3;
            animation: float 6s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 0; }
            50% { transform: translateY(-100px) rotate(180deg); opacity: 0.6; }
        }

        html {
            scroll-behavior: smooth;
            scroll-margin-top: 80px;
        }

        body {
            line-height: 1.6;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            transition: var(--transition);
            overflow-x: hidden;
        }

        /* Hide content during loading */
        body.loading .main-content {
            opacity: 0;
        }

        body:not(.loading) .main-content {
            opacity: 1;
            transition: opacity 0.5s ease;
        }

        /* Smooth scroll snap - refined for better UX */
        .snap-section {
            scroll-snap-align: start;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* Navigation - Enhanced Responsiveness */
        .navbar {
            position: fixed;
            top: 0;
            width: 100%;
            background: var(--bg-primary);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            transition: var(--transition);
            opacity: 0.95;
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 3.5rem;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: bold;
            color: var(--text-primary);
            text-decoration: none;
            transition: var(--transition);
        }

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

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 1.5rem;
            align-items: center;
        }

        .nav-link {
            color: var(--text-primary);
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            font-size: 0.9rem;
            font-weight: 500;
            position: relative;
        }

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

        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: -5px;
            left: 50%;
            background-color: var(--accent);
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-controls {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .theme-toggle {
            background: none;
            border: 2px solid var(--bg-primary);
            border-radius: 50%;
            width: 2.25rem;
            height: 2.25rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            color: var(--text-primary);
            font-size: 1rem;
            padding-left: 1px;
            padding-bottom: 1px;
        }

        .theme-toggle:hover {
            transform: scale(1.1);
        }
        
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.25rem;
            cursor: pointer;
            color: var(--text-primary);
        }

        /* Enhanced Mobile Navigation */
        @media (max-width: 980px) {
            .nav-container {
                padding: 0 1.5rem;
            }

            .nav-menu {
                gap: 1rem;
            }

            .nav-link {
                font-size: 0.85rem;
            }
        }

        @media (max-width: 768px) {
            .nav-container {
                padding: 0 1rem;
            }

            .nav-menu {
                position: fixed;
                top: 3.5rem;
                left: -100%;
                width: 100%;
                height: calc(100vh - 3.5rem);
                background: var(--bg-primary);
                flex-direction: column;
                justify-content: flex-start;
                padding-top: 2rem;
                transition: var(--transition);
                border-top: 1px solid var(--border);
                gap: 1.5rem;
            }

            .nav-menu.active {
                left: 0;
            }

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

            .nav-controls {
                gap: 0.5rem;
            }

            .nav-link {
                font-size: 1rem;
            }
        }

        /* Hero Section - Enhanced Responsiveness */
        .hero {
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: 4rem 2rem 4rem;
            background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
            position: relative;
        }

        .hero-content {
            max-width: 800px;
            margin: 0 auto;
        }

        /* Fixed Greeting Animation */
        .greeting {
            font-size: 1.2rem;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 1rem;
            margin-left: 5%;
            opacity: 0;
            animation: slideInFromLeft 1s ease-out 0.5s forwards;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

        .greeting-emoji {
            font-size: 1.1rem;
            display: inline-block;
            animation: wave-hand 2s ease-in-out infinite 1s;
            transform-origin: 70% 70%;
            padding-bottom: 5px;
        }

        @keyframes slideInFromLeft {
            from {
                opacity: 0;
                transform: translateX(-30px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        @keyframes wave-hand {
            0%, 100% { transform: rotate(0deg); }
            10%, 30% { transform: rotate(14deg); }
            20% { transform: rotate(-8deg); }
            40%, 60% { transform: rotate(14deg); }
            50% { transform: rotate(-8deg); }
            70%, 80% { transform: rotate(0deg); }
        }

        .profile-img {
            width: 120px;
            height: 120px;
            border-radius: 50%;
            margin: 0 auto 1.5rem;
            background: var(--bg-secondary);
            animation: fadeInUp 1s ease-out;
            transition: var(--transition);
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .profile-img img {
            width: 100%;
            height: 100%;
            object-fit: contain; 
            border-radius: 50%; 
        }


        .profile-img:hover {
            transform: scale(1.05);
            transform: translateY(-5px);
            box-shadow: 0 4px 12px var(--text-primary);
        }

        .hero-content h1 {
            font-size: clamp(2.5rem, 6vw, 4rem);
            font-weight: bold;
            margin-bottom: 0.75rem;
            animation: fadeInUp 1s ease-out 0.2s both;
        }

        .hero-content .subtitle {
            font-size: clamp(1rem, 3vw, 1.5rem);
            color: var(--text-secondary);
            margin-bottom: 1rem;
            animation: fadeInUp 1s ease-out 0.4s both;
        }

        .hero-content .description {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 500px;
            margin: 0 auto 2rem;
            animation: fadeInUp 1s ease-out 0.6s both;
        }

        .cta-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
            animation: fadeInUp 1s ease-out 0.8s both;
            margin-bottom: 3rem;
        }

        .btn {
            padding: 0.75rem 1.5rem;
            border: none;
            border-radius: 0.5rem;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            display: inline-block;
            position: relative;
            overflow: hidden;
        }

        .btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
            transition: left 0.5s;
        }

        .btn:hover::before {
            left: 100%;
        }

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

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px var(--shadow);
        }

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

        .btn-secondary:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px var(--shadow);
        }

        /* Enhanced Responsive Hero */
        @media (max-width: 980px) {
            .hero {
                padding: 3rem 1.5rem 3rem;
            }

            .hero-content .description {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 768px) {
            .hero {
                padding: 3rem 1rem 3rem;
            }

            .cta-buttons {
                gap: 0.75rem;
                margin-bottom: 2rem;
            }

            .btn {
                padding: 0.6rem 1.2rem;
                font-size: 0.85rem;
            }
        }

        /* Section Headers */
        .section-header {
            text-align: center;
            margin-bottom: 2rem;
        }

        .section-header h2 {
            font-size: clamp(1.8rem, 4vw, 2.2rem);
            margin-bottom: 0.5rem;
        }

        /* About Section - Enhanced Responsiveness */
        .about {
            padding: 2rem;
            justify-content: center; 
            padding-top: 3rem;
        }

        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
            max-width: 1000px;
            margin: 0 auto;
        }

        .about-text p {
            margin-bottom: 1.25rem;
            color: var(--text-secondary);
            font-size: 1rem;
        }

        .about-text b {
            color: var(--accent);
            font-weight: 600;
        }

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

        .social-link {
            width: 2.5rem;
            height: 2.5rem;
            border: 2px solid var(--bg-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            text-decoration: none;
            transition: var(--transition);
            font-size: 1rem;
        }

        .social-link:hover {
            border-color: var(--bg-primary);
            color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px var(--text-primary);
        }

        .social-link svg {
            width: 1.2rem;
            height: 1.2rem;
            fill: currentColor;
        }

        @media (max-width: 980px) {
            .about-content {
                gap: 2rem;
            }

            .about-text p {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 768px) {
            .about-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }

        /* Skills Section */
        .skills {
            background: var(--bg-secondary);
            padding: 2rem;
            padding-top: 3rem;
            display: flex;
            justify-content: center;
        }

        .skills-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr); /* Default: 5 items per row */
            gap: 0.5rem;
            max-width: 1000px;
            width: 100%;
            margin: 0 auto;
            padding: 0 1rem;
            box-sizing: border-box;
        }

        .skill-item {
            background: var(--bg-primary);
            padding: 1rem;
            border-radius: 0.5rem;
            text-align: center;
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: pointer;
            font-size: 0.9rem;
            font-weight: 500;
        }

        .skill-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px var(--shadow);
            border-color: var(--text-primary);
        }

        /* Medium screens (tablets) */
        @media (max-width: 992px) {
            .skills-grid {
                grid-template-columns: repeat(3, 1fr); /* 3 per row */
            }
        }

        /* Small screens (mobiles) */
        @media (max-width: 600px) {
            .skills-grid {
                grid-template-columns: repeat(2, 1fr); /* 2 per row */
            }

            .skill-item {
                font-size: 0.85rem;
                padding: 0.8rem;
            }
        }

        /* Extra small screens */
        @media (max-width: 400px) {
            .skills-grid {
                grid-template-columns: 1fr; /* 1 per row */
            }

            .skill-item {
                font-size: 0.8rem;
                padding: 0.7rem;
            }
        }

        /* Activities Section - Enhanced Responsiveness */
        .activities {
            padding: 2rem;
            padding-top: 3rem;
            justify-content: center; 
        }

        .activities-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .activity-item {
            background: var(--bg-primary);
            padding: 1.5rem;
            border-radius: 0.8rem;
            border: 1px solid var(--border);
            margin-bottom: 1.5rem;
            transition: var(--transition);
        }

        .activity-item:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px var(--shadow);
             border-color: var(--text-primary);
        }

        .activity-item h3 {
            color: var(--accent);
            margin-bottom: 0.5rem;
        }

        .activity-item p {
            color: var(--text-secondary);
            margin-bottom: 0.5rem;
        }

        .activity-item b {
            color: var(--text-primary);
        }

        @media (max-width: 980px) {
            .activity-item {
                padding: 1.2rem;
            }

            .activity-item h3 {
                font-size: 1.1rem;
            }

            .activity-item p {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 768px) {
            .activity-item {
                padding: 1rem;
            }
        }

        /* Projects Section - Enhanced with Blue Fill Animation */
        .projects {
            background: var(--bg-secondary);
            padding: 2rem;
            padding-top: 3rem;
            justify-content: center;
        }

        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
            max-width: 1000px;
            margin: 0 auto;
        }

        .project-card {
            background: var(--bg-primary);
            border-radius: 0.8rem;
            overflow: hidden;
            box-shadow: 0 3px 12px var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            position: relative;
        }

        .project-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 24px var(--shadow);
            border-color: var(--text-primary);
        }

        .project-image {
            width: 100%;
            height: 180px;
            background: var(--bg-secondary);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 2.5rem;
        }

        .project-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .project-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.8);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1.5rem;
            opacity: 0;
            transition: var(--transition);
        }

        .project-card:hover .project-overlay {
            opacity: 1;
        }

        .project-icon {
            width: 3rem;
            height: 3rem;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.2rem;
            transition: var(--transition);
            cursor: pointer;
            backdrop-filter: blur(10px);
            position: relative;
            overflow: hidden;
        }

        .project-icon::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: var(--accent);
            transition: left 0.3s ease;
            z-index: -1;
        }

        .project-icon:hover::before {
            left: 0;
        }

        .project-icon:hover {
            background: var(--accent);
            transform: scale(1.1);
        }

        .project-content {
            padding: 1.5rem;
        }

        .project-title {
            font-size: 1.1rem;
            font-weight: bold;
            margin-bottom: 0.5rem;
        }

        .project-description {
            color: var(--text-secondary);
            margin-bottom: 1rem;
            font-size: 0.9rem;
            line-height: 1.5;
        }

        .project-tech {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }

        .tech-tag {
            background: var(--bg-secondary);
            color: var(--text-secondary);
            padding: 0.2rem 0.6rem;
            border-radius: 0.8rem;
            font-size: 0.75rem;
            border: 1px solid var(--border);
        }

        /* Enhanced Responsive Projects */
        @media (max-width: 980px) {
            .projects-grid {
                grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
                gap: 1.2rem;
            }

            .project-image {
                height: 160px;
                font-size: 2rem;
            }

            .project-content {
                padding: 1.2rem;
            }
        }

        @media (max-width: 768px) {
            .projects-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .project-image {
                height: 150px;
                font-size: 1.8rem;
            }

            .project-content {
                padding: 1rem;
            }
        }

        /* Certifications Section - Enhanced Responsiveness */
        .certifications {
            padding: 2rem;
            padding-top: 3rem;
            justify-content: center;
        }

        .cert-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .cert-card {
            background: var(--bg-primary);
            border-radius: 0.8rem;
            overflow: hidden;
            box-shadow: 0 3px 12px var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            text-decoration: none;
            color: inherit;
        }

        .cert-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 24px var(--shadow);
            text-decoration: none;
            color: inherit;
            border-color: var(--text-primary);
        }

        .cert-image {
            width: 100%;
            height: 160px;
            background: var(--bg-secondary);
            position: relative;
            overflow: hidden;
        }

        .cert-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .cert-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.8);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: var(--transition);
            gap: 1.5rem;
        }

        .cert-card:hover .cert-overlay {
            opacity: 1;
        }

        .cert-icon {
            width: 3rem;
            height: 3rem;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.2rem;
            transition: var(--transition);
            cursor: pointer;
            backdrop-filter: blur(10px);
            position: relative;
            overflow: hidden;
        }

        .cert-icon::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: var(--accent);
            transition: left 0.3s ease;
            z-index: -1;
        }

        .cert-icon:hover::before {
            left: 0;
        }

        .cert-icon:hover {
            background: var(--accent);
            transform: scale(1.1);
        }


        .cert-content {
            padding: 1.25rem;
        }

        .cert-title {
            font-size: 1rem;
            font-weight: bold;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

        .cert-content ul {
            margin-bottom: 1rem;
            padding-left: 1rem;
        }

        .cert-content li {
            color: var(--text-secondary);
            margin-bottom: 0.25rem;
            font-size: 0.85rem;
            line-height: 1.4;
        }

        .cert-provider {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-top: 0.5rem;
        }

        .cert-provider img {
            width: 20px;
            height: 20px;
            object-fit: contain;
        }

        .cert-provider small {
            font-size: 0.7rem;
            color: var(--text-secondary);
        }

        @media (max-width: 980px) {
            .cert-grid {
                grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
                gap: 1.2rem;
            }

            .cert-content {
                padding: 1rem;
            }
        }

        @media (max-width: 768px) {
            .cert-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
        }

        /* Contact Section */
        .contact {
            background: var(--bg-secondary);
            padding: 2rem;
            justify-content: center;
            padding-top: 3rem;
        }

        .contact-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            max-width: 900px;
            margin: 0 auto;
        }

        .contact-info h3 {
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }

        .contact-info p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            font-size: 0.95rem;
        }

        .contact-social {
            display: flex;
            gap: 1rem;
            margin-top: 1.5rem;
        }

        .contact-social-link {
            width: 3rem;
            height: 3rem;
            border: 2px solid var(--bg-secondary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            text-decoration: none;
            transition: var(--transition);
            font-size: 1.2rem;
            background: var(--bg-secondary);
        }

        .contact-social-link:hover {
            border-color: var(--bg-secondary);
            color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px var(--text-primary);
        }

        .contact-social-link svg {
            width: 1.4rem;
            height: 1.4rem;
            fill: currentColor;
        }

        .contact-form {
            background: var(--bg-primary);
            padding: 1.5rem;
            border-radius: 0.8rem;
            border: 1px solid var(--border);
        }

        .form-group {
            margin-bottom: 1rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.4rem;
            font-weight: 500;
            font-size: 0.85rem;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 0.6rem;
            border: 2px solid var(--border);
            border-radius: 0.4rem;
            background: var(--bg-primary);
            color: var(--text-primary);
            transition: var(--transition);
            font-size: 0.85rem;
        }

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

        .form-group textarea {
            resize: vertical;
            min-height: 80px;
        }

        @media (max-width: 980px) {
            .contact-content {
                gap: 2rem;
            }

            .contact-info p {
                font-size: 0.9rem;
            }
        }

        @media (max-width: 768px) {
            .contact-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }

        /* Footer */
        .footer {
            text-align: center;
            padding: 1.5rem;
            border-top: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 0.9rem;
            position: relative;
        }

        /* Scroll to Top Arrow - Enhanced Responsiveness */
        .scroll-to-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 3rem;
            height: 3rem;
            background: var(--accent);
            color: white;
            border: none;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 1000;
            box-shadow: 0 4px 12px var(--shadow);
        }

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

        .scroll-to-top:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px var(--shadow);
        }

        @media (max-width: 980px) {
            .scroll-to-top {
                bottom: 1.5rem;
                right: 1.5rem;
                width: 2.8rem;
                height: 2.8rem;
                font-size: 1.1rem;
            }
        }

        @media (max-width: 768px) {
            .scroll-to-top {
                bottom: 1rem;
                right: 1rem;
                width: 2.5rem;
                height: 2.5rem;
                font-size: 1rem;
            }
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s ease-out;
        }

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

        /* Fixed Scroll indicator with proper spacing */
        .scroll-indicator {
            position: absolute;
            bottom: 2rem;
            left: 50%;
            transform: translateX(-50%);
            animation: bounce 2s infinite;
            color: var(--text-secondary);
            cursor: pointer;
            transition: var(--transition);
            z-index: 10;
        }

        .scroll-indicator:hover {
            color: var(--accent);
            transform: translateX(-50%) scale(1.1);
        }

        @keyframes bounce {
            0%, 20%, 50%, 80%, 100% {
                transform: translateX(-50%) translateY(0);
            }
            40% {
                transform: translateX(-50%) translateY(-8px);
            }
            60% {
                transform: translateX(-50%) translateY(-4px);
            }
        }

        /* Enhanced Responsive Adjustments for 480px-980px */
        @media (max-width: 980px) and (min-width: 481px) {
            .section-header {
                margin-bottom: 2rem;
                padding-top: 1.5rem;
            }

            .section-header h2 {
                font-size: 2rem;
            }

            .skills-subtitle {
                font-size: 1rem;
                margin-bottom: 2.5rem;
            }
        }

        @media (max-width: 768px) and (min-width: 481px) {
            .hero {
                padding: 3.5rem 1.5rem 3.5rem;
            }

            .about {
                padding: 1.5rem;
            }

            .skills {
                padding: 1.5rem;
            }

            .activities {
                padding: 1.5rem;
            }

            .projects {
                padding: 1.5rem;
            }

            .certifications {
                padding: 1.5rem;
            }

            .contact {
                padding: 1.5rem;
            }
        }

        /* Performance optimizations */
        .cert-card,
        .skill-item,
        .btn,
        .project-icon {
            will-change: transform;
        }

        /* Reduced motion for accessibility */
        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }
            
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }