:root {
    --bg-color: #f4f4f9;
    --text-color: #333;
    --accent-color: #0070f3;
    --card-bg: #fff;
}

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

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: var(--card-bg);
    padding: 40px 0;
    border-bottom: 1px solid #eaeaea;
    text-align: center;
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
}

.subtitle {
    color: #666;
    font-size: 1.2rem;
    margin-top: 10px;
}

nav {
    margin-top: 20px;
}

nav a {
    margin: 0 10px;
    text-decoration: none;
    color: var(--text-color);
    font-weight: bold;
}

nav a:hover {
    color: var(--accent-color);
}

section {
    padding: 40px 0;
    border-bottom: 1px solid #eaeaea;
}

section:last-child {
    border-bottom: none;
}

h2 {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.project-card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.project-card h3 {
    margin-top: 0;
}

.project-card h3 a {
    color: var(--text-color);
    text-decoration: none;
}

.project-card h3 a:hover {
    color: var(--accent-color);
}

.role {
    font-style: italic;
    color: #666;
    margin-bottom: 10px;
}

.experience-item, .education-item {
    margin-bottom: 20px;
}

.experience-item h3, .education-item h3 {
    margin-bottom: 5px;
}

footer {
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
    background-color: var(--card-bg);
    border-top: 1px solid #eaeaea;
}

footer a {
    color: var(--accent-color);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}