:root {
    --bg-color: #ffffff;
    --text-color: #333333;
    --accent-color: #0070f3;
    --secondary-color: #666666;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    margin: 0;
    padding: 0;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    padding: 4rem 0;
}

header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--secondary-color);
}

nav {
    margin-top: 2rem;
}

nav a {
    margin: 0 15px;
    text-decoration: none;
    color: var(--accent-color);
    font-weight: 500;
}

section {
    margin-bottom: 4rem;
}

h2 {
    border-bottom: 2px solid #eee;
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
}

.project-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.project-card {
    padding: 1.5rem;
    border: 1px solid #eaeaea;
    border-radius: 8px;
    transition: transform 0.2s;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.social-links a {
    display: inline-block;
    margin-right: 20px;
    text-decoration: none;
    color: var(--text-color);
    font-size: 1.1rem;
}

footer {
    text-align: center;
    padding: 2rem;
    font-size: 0.9rem;
    color: var(--secondary-color);
}

@media (max-width: 600px) {
    .project-grid {
        grid-template-columns: 1fr;
    }
}