:root {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --accent-color: #00ff9d;
    --card-bg: #1e1e1e;
}

body.light-theme {
    --bg-color: #ffffff;
    --text-color: #121212;
    --card-bg: #f0f0f0;
}

body {
    font-family: 'JetBrains Mono', monospace;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

header {
    text-align: center;
    padding: 50px 0;
    position: relative;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

#theme-toggle {
    cursor: pointer;
    background: var(--card-bg);
    color: var(--text-color);
    border: 1px solid #333;
    padding: 5px 10px;
    border-radius: 4px;
}

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

.project-card {
    background-color: var(--card-bg);
    padding: 20px;
    border: 1px solid #333;
    border-radius: 8px;
}

section {
    max-width: 800px;
    margin: 0 auto 40px;
}