*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;color:#333;background-color:#f9f9f9}h1,h2,h3,h4,h5,h6{line-height:1.2;margin-bottom:1rem}h1{font-size:3rem;font-weight:700}h2{font-size:2.5rem;font-weight:700}h3{font-size:1.75rem;font-weight:600}p{margin-bottom:1rem}a{color:#007bff;text-decoration:none;transition:color .3s ease}a:hover{color:#0056b3}.btn{display:inline-block;padding:.75rem 1.5rem;border:none;border-radius:4px;font-size:1rem;cursor:pointer;transition:all .3s ease;text-decoration:none}.btn-primary{background-color:#007bff;color:#fff}.btn-primary:hover{background-color:#0056b3;transform:translateY(-2px);box-shadow:0 4px 12px #007bff66;transition:all .3s cubic-bezier(.34,1.56,.64,1)}.btn-secondary{background-color:#6c757d;color:#fff}.btn-secondary:hover{background-color:#5a6268}.container{max-width:1200px;margin:0 auto;padding:0 2rem}.section{padding:4rem 0}.text-center{text-align:center}.text-white{color:#fff}.bg-light{background-color:#f8f9fa}.bg-dark{background-color:#212529;color:#fff}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}.mt-5{margin-top:3rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}.mb-5{margin-bottom:3rem}.py-2{padding:1rem 0}.py-3{padding:1.5rem 0}.py-4{padding:2rem 0}.grid{display:grid;gap:2rem}.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.grid-4{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}@media (max-width: 768px){h1{font-size:2rem}h2{font-size:1.75rem}h3{font-size:1.5rem}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}