:root{font-family:Arial,sans-serif;line-height:1.5;color:#222;background:#fff}*{box-sizing:border-box}body{margin:0}#root{min-height:100vh;display:flex;flex-direction:column}header,main,footer{width:100%;max-width:960px;margin-inline:auto;padding:1rem}main{flex:1}nav{display:flex;gap:1rem}a{color:#2456a6}nav a.active{font-weight:700}.project-card{padding:1rem;border:1px solid #ddd}.project-card h2{margin:0}