:root{--primary: #111827;--accent: #00c9a7;--text: #ffffff;--light: #f9fafb}body{font-family:Segoe UI,sans-serif;margin:0;padding:0;background-color:var(--light);color:#333}header{background-color:var(--primary);color:var(--text);padding:2rem 0;text-align:center}nav a{color:var(--accent);margin:0 1rem;text-decoration:none;font-weight:700}#hero{background:linear-gradient(to right,#00c9a7,#92fe9d);padding:4rem 2rem;color:#fff;text-align:center}.btn{display:inline-block;background:#fff;color:#00c9a7;padding:.75rem 1.5rem;border-radius:6px;font-weight:700;margin-top:1rem;text-decoration:none}.container{max-width:1100px;margin:0 auto;padding:2rem 1rem}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.5rem;margin-top:2rem}.card{background:#fff;padding:1.5rem;border-radius:8px;box-shadow:0 2px 8px #0000000d}footer{background-color:var(--primary);color:var(--text);text-align:center;padding:1rem;font-size:.9rem}