:root {
            --primary: #3498db;
            --secondary: #2c3e50;
            --light: #ecf0f1;
            --dark: #2c3e50;
            --accent: #e74c3c;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }


        
        body {
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .whatsapp-link {
            text-decoration: none !important;
        }
        
        header {
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            color: white;
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        header::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('https://images.unsplash.com/photo-1555066931-4365d14bab8c?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1470&q=80') center/cover;
            opacity: 0.2;
            z-index: 0;
        }
        
        header .container {
            position: relative;
            z-index: 1;
        }
        
        .profile-img {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            object-fit: cover;
            border: 5px solid white;
            margin-bottom: 20px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        
        h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
        }
        
        .title {
            font-size: 1.5rem;
            margin-bottom: 20px;
            font-weight: 300;
        }
        
        .contact-info {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 20px;
        }
        
        .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .contact-item i {
            font-size: 1.2rem;
        }
        
        section {
            padding: 60px 0;
        }
        
        section:nth-child(even) {
            background-color: white;
        }
        
        h2 {
            text-align: center;
            margin-bottom: 40px;
            font-size: 2rem;
            color: var(--secondary);
            position: relative;
        }
        
        h2::after {
            content: "";
            display: block;
            width: 80px;
            height: 4px;
            background-color: var(--primary);
            margin: 15px auto;
            border-radius: 2px;
        }
        
        .about-content {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            align-items: center;
        }
        
        .about-text {
            flex: 1;
            min-width: 300px;
        }
        
        .skills {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 30px;
        }
        
        .skill {
            background-color: var(--primary);
            color: white;
            padding: 8px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
        }
        
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }
        
        .timeline::after {
            content: '';
            position: absolute;
            width: 2px;
            background-color: var(--primary);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -1px;
        }
        
        .timeline-item {
            padding: 10px 40px;
            position: relative;
            width: 50%;
            box-sizing: border-box;
        }
        
        .timeline-item::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            background-color: white;
            border: 4px solid var(--primary);
            border-radius: 50%;
            top: 15px;
            z-index: 1;
        }
        
        .left {
            left: 0;
        }
        
        .right {
            left: 50%;
        }
        
        .left::after {
            right: -12px;
        }
        
        .right::after {
            left: -12px;
        }
        
        .timeline-content {
            padding: 20px;
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
        }
        
        .timeline-date {
            color: var(--primary);
            font-weight: bold;
            margin-bottom: 10px;
        }
        
        .timeline-title {
            font-weight: bold;
            margin-bottom: 10px;
        }
        
        .projects {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
        }
        
        .project-card {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        
        .project-card:hover {
            transform: translateY(-10px);
        }
        
        .project-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        
        .project-info {
            padding: 20px;
        }
        
        .project-title {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--secondary);
        }
        
        .project-tech {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 15px 0;
        }
        
        .tech-item {
            background-color: var(--light);
            padding: 5px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
        }
        
        .btn {
            display: inline-block;
            background-color: var(--primary);
            color: white;
            padding: 10px 20px;
            border-radius: 4px;
            text-decoration: none;
            margin-top: 10px;
            transition: background-color 0.3s ease;
        }
        
        .btn:hover {
            background-color: var(--secondary);
        }
        
        .certifications {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
        }
        
        .cert-card {
            background-color: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
            width: 250px;
            text-align: center;
        }
        
        .cert-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 15px;
        }
        
        .cert-title {
            font-weight: bold;
            margin-bottom: 5px;
        }
        
        .cert-date {
            color: #777;
            font-size: 0.9rem;
        }
        
        footer {
            background-color: var(--secondary);
            color: white;
            text-align: center;
            padding: 30px 0;
        }
        
        .social-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin: 20px 0;
        }
        
        .social-link {
            color: white;
            font-size: 1.5rem;
            transition: color 0.3s ease;
        }
        
        .social-link:hover {
            color: var(--primary);
        }
        
        @media screen and (max-width: 768px) {
            .timeline::after {
                left: 31px;
            }
            
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            
            .timeline-item::after {
                left: 21px;
            }
            
            .left::after, .right::after {
                left: 21px;
            }
            
            .right {
                left: 0;
            }
        }