* {
    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, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    margin-top: 20px;
    margin-bottom: 20px;
}

.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px 0;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    border-radius: 10px;
    color: white;
}

.header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.language-toggle {
    display: inline-block;
    margin-top: 15px;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
}

.language-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.project-card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border-left: 4px solid #4facfe;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.project-title {
    font-size: 1.3em;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 15px;
}

.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
}

.tech-tag {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 500;
}

.type-tag {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 500;
}

.project-description {
    color: #555;
    margin-bottom: 15px;
    line-height: 1.6;
}

.project-description ul {
    margin-left: 20px;
    margin-top: 10px;
}

.project-links {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.github-link {
    display: inline-block;
    padding: 8px 16px;
    background: #24292e;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.9em;
    transition: all 0.3s ease;
}

.github-link:hover {
    background: #0366d6;
    transform: translateY(-1px);
}

.private-tag {
    padding: 8px 16px;
    background: #6c757d;
    color: white;
    border-radius: 6px;
    font-size: 0.9em;
}

.certifications-link {
    text-align: center;
    margin-top: 40px;
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.certifications-link a {
    display: inline-block;
    padding: 15px 30px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-size: 1.1em;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(79, 172, 254, 0.3);
}

.certifications-link a:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(79, 172, 254, 0.4);
}

@media (max-width: 768px) {
    .container {
        margin: 10px;
        padding: 15px;
    }
    
    .header h1 {
        font-size: 2em;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .project-card {
        padding: 20px;
    }
    
    .project-meta {
        flex-direction: column;
        align-items: flex-start;
    }
}