:root {
            --primary: #3498db;
            --secondary: #2c3e50;
            --accent: #e74c3c;
            --light: #ecf0f1;
            --dark: #2c3e50;
            --gray: #95a5a6;
            --success: #2ecc71;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #f5f7fa;
            color: var(--dark);
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        header {
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            color: white;
            padding: 2rem 0;
            position: relative;
            overflow: hidden;
        }
        
        .header-content {
            display: flex;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        
        .profile-img {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            object-fit: cover;
            border: 5px solid rgba(255, 255, 255, 0.2);
            margin-right: 2rem;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        .header-text h1 {
            font-size: 2.5rem;
            margin-bottom: 0.5rem;
        }
        
        .header-text p {
            font-size: 1.2rem;
            opacity: 0.9;
            margin-bottom: 1rem;
        }
        
        .contact-info {
            display: flex;
            gap: 1.5rem;
            margin-top: 1rem;
            flex-wrap: wrap;
        }
        
        .contact-info a {
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: opacity 0.3s;
        }
        
        .contact-info a:hover {
            opacity: 0.8;
        }
        
        .btn {
            display: inline-block;
            padding: 0.6rem 1.2rem;
            border-radius: 4px;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            margin-top: 1rem;
        }
        
        .btn-primary {
            background-color: var(--accent);
            color: white;
            border: 2px solid var(--accent);
        }
        
        .btn-primary:hover {
            background-color: transparent;
            color: white;
        }
        
        .btn-outline {
            background-color: transparent;
            color: white;
            border: 2px solid white;
            margin-left: 0.8rem;
        }
        
        .btn-outline:hover {
            background-color: white;
            color: var(--primary);
        }
        
        .header-bg {
            position: absolute;
            top: 0;
            right: 0;
            height: 100%;
            opacity: 0.1;
            z-index: 1;
        }
        
        section {
            padding: 3rem 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 2rem;
            position: relative;
        }
        
        .section-title h2 {
            font-size: 2rem;
            color: var(--secondary);
            display: inline-block;
            padding: 0 1rem;
            background-color: #f5f7fa;
            position: relative;
            z-index: 2;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 0;
            right: 0;
            height: 1px;
            background-color: var(--gray);
            z-index: 1;
        }
        
        .card {
            background: white;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            padding: 2rem;
            margin-bottom: 2rem;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .card-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 1rem;
        }
        
        .card-title {
            font-size: 1.5rem;
            color: var(--primary);
        }
        
        .card-subtitle {
            color: var(--gray);
            font-style: italic;
        }
        
        .card-date {
            background-color: var(--light);
            color: var(--secondary);
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.9rem;
            align-self: flex-start;
        }
        
        .card-content ul {
            list-style-position: inside;
            padding-left: 1rem;
        }
        
        .card-content li {
            margin-bottom: 0.5rem;
        }
        
        .skills-container {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        
        .skill-category {
            flex: 1;
            min-width: 250px;
        }
        
        .skill-category h3 {
            color: var(--primary);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light);
        }
        
        .skill-tag {
            display: inline-block;
            background-color: var(--light);
            color: var(--secondary);
            padding: 0.5rem 1rem;
            border-radius: 20px;
            margin: 0.3rem;
            font-size: 0.9rem;
            transition: all 0.3s;
        }
        
        .skill-tag:hover {
            background-color: var(--primary);
            color: white;
            transform: scale(1.05);
        }
        
        .education {
            text-align: center;
        }
        
        .education-item {
            margin-bottom: 1.5rem;
        }
        
        .education-item h3 {
            color: var(--primary);
            margin-bottom: 0.5rem;
        }
        
        .education-item p {
            color: var(--gray);
        }
        
        footer {
            background-color: var(--secondary);
            color: white;
            text-align: center;
            padding: 2rem 0;
            margin-top: 2rem;
        }
        
        .footer-actions {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin: 1.5rem 0;
        }
        
        .social-links {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin: 1rem 0;
        }
        
        .social-links a {
            color: white;
            font-size: 1.5rem;
            transition: color 0.3s;
        }
        
        .social-links a:hover {
            color: var(--primary);
        }
        
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                text-align: center;
            }
            
            .profile-img {
                margin-right: 0;
                margin-bottom: 1.5rem;
            }
            
            .contact-info {
                justify-content: center;
            }
            
            .header-actions {
                display: flex;
                flex-direction: column;
                align-items: center;
            }
            
            .btn-outline {
                margin-left: 0;
                margin-top: 0.8rem;
            }
            
            .card-header {
                flex-direction: column;
                gap: 0.5rem;
            }
            
            .card-date {
                align-self: flex-end;
            }
            
            .footer-actions {
                flex-direction: column;
                align-items: center;
            }
        }
        
        /* Animation */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .animate {
            animation: fadeIn 0.6s ease-out forwards;
        }
        
        .delay-1 { animation-delay: 0.2s; }
        .delay-2 { animation-delay: 0.4s; }
        .delay-3 { animation-delay: 0.6s; }