/* Main styles */
:root {
    --primary-color: #4a90e2;
    --secondary-color: #2c3e50;
    --text-color: #333;
    --background-color: #fff;
}

/* Global styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

/* Header styles */
.site-header {
    background: var(--background-color);
    padding: 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Navigation styles */
.main-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Content styles */
.site-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Footer styles */
.site-footer {
    background: var(--secondary-color);
    color: var(--background-color);
    padding: 2rem;
    margin-top: 4rem;
}