.header{padding:80px 20px;text-align:center}.header h1{font-size:3rem}.header h2{font-weight:400;margin-top:10px}.header p{margin-top:15px;color:#aaa}.header-actions{margin-top:30px}.header-actions a{margin:0 10px;padding:10px 16px;border:1px solid #333;border-radius:6px}.section{max-width:900px;margin:0 auto;padding:60px 20px}.section h3{margin-bottom:30px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}.card{border:1px solid #222;padding:20px;border-radius:8px;margin-bottom:25px}.subtitle{color:#aaa;margin-bottom:10px}.tech{color:#999;font-size:.9rem}.links a{margin-right:15px}.cta{margin-top:20px;color:#aaa}