/* Reset and base styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    line-height: 1.6;
    color: #24292e;
    background-color: #f6f8fa;
    padding: 2rem;
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2rem;
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
}

/* Profile section */
.profile {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e1e4e8;
}

.avatar {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin-bottom: 1rem;
    border: 1px solid #e1e4e8;
}

.profile h1 {
    margin-bottom: 0.5rem;
    font-size: 2rem;
    color: #24292e;
}

.username {
    font-size: 1.25rem;
}

.username a {
    color: #586069;
    text-decoration: none;
}

.username a:hover {
    color: #0366d6;
    text-decoration: underline;
}

/* Projects section */
.projects h2 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    border-bottom: 1px solid #eaecef;
    padding-bottom: 0.5rem;
}

.project-card {
    border: 1px solid #e1e4e8;
    border-radius: 6px;
    padding: 1rem;
    margin-bottom: 1rem;
    transition: box-shadow 0.3s ease;
}

.project-card:hover {
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.project-card h3 {
    margin-bottom: 0.5rem;
}

.project-card h3 a {
    color: #0366d6;
    text-decoration: none;
}

.project-card h3 a:hover {
    text-decoration: underline;
}

.project-card p {
    color: #586069;
}

/* Footer */
footer {
    text-align: center;
    margin-top: 3rem;
    color: #586069;
    font-size: 0.9rem;
}

/* Responsive adjustments */
@media (max-width: 600px) {
    body {
        padding: 1rem;
    }
    .container {
        padding: 1rem;
    }
}