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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #000000 0%, #666666 100%);
            min-height: 100vh;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header */
        .header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            padding: 2rem 0;
            margin-bottom: 3rem;
            border-radius: 0 0 20px 20px;
        }

        .hero {
            text-align: center;
            position: relative;
        }

        .profile-image {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: linear-gradient(45deg, #000066, #a00);
            margin: 0 auto 2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: white;
            font-weight: bold;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            transition: transform 0.3s ease;
        }

        .profile-image:hover {
            transform: scale(1.05);
        }

        .hero h1 {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: black;
            text-shadow: 1px 1px 3px black;
        }

        .hero p {
            font-size: 1.2rem;
            color: #666;
            max-width: 800px;
            margin: 0 auto;
        }

        /* Skills Grid */
        .skills-section {
            padding: 3rem 0;
            position: relative;
        }
        
        .skills-section > img {
            position: absolute;
	    z-index: 10;
	    top: 3.5rem;
	    left: 0;
	    width: 8rem;
	    opacity: 0;
	    transition: opacity .5s;
	}
	
        .skills-section > img.active {
            opacity: 1;
        }
        
        .section-title {
            text-align: center;
            font-size: 2.5rem;
            color: white;
            margin-bottom: 3rem;
            text-shadow: 1px 1px 3px white;
        }

        .skills-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .skill-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 15px;
            padding: 2rem;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .skill-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
        }

        .skill-icon {
            width: 80px;
            height: 80px;
            border-radius: 12px;
            background: linear-gradient(45deg, #000066, #a00);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: white;
            margin-bottom: 1.5rem;
            transition: transform 0.3s ease;
        }

        .skill-card:hover .skill-icon {
            transform: rotate(5deg) scale(1.1);
        }

        .skill-card h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: #333;
            font-weight: 600;
        }

        .skill-card p {
            color: #666;
            line-height: 1.6;
        }

        /* Contact Section */
        .contact-section {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            padding: 3rem;
            margin: 3rem 0;
            text-align: center;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
        }

        .contact-section h2 {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            color: black;
            text-shadow: 1px 1px 1px black;
        }

        .contact-section p {
            font-size: 1.1rem;
            color: #666;
            margin-bottom: 2rem;
        }

        .contact-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            padding: 12px 30px;
            border: none;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            user-select: none;
        }

        .btn-primary {
            background: linear-gradient(45deg, #000, #666);
            color: white;
        }

        .btn-secondary {
            background: transparent;
            color: black;
            border: 2px solid black;
        }

        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
        }
        
        .invisible {
            display: none!important;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.5rem;
            }
            
            .skills-section > img {
                top: 1.9rem;
            }
            
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .skills-grid {
                grid-template-columns: 1fr;
            }
            
            .contact-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .btn {
                width: 200px;
            }
        }

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

        .skill-card {
            animation: fadeInUp 0.6s ease forwards;
        }

        .skill-card:nth-child(even) {
            animation-delay: 0.2s;
        }