.btn-primary{background-color:#2563eb;border:none;padding:10px 20px;border-radius:6px}.btn-primary:hover{background-color:#1e40af}.hero{background:#f8fafc;text-align:center;padding:100px 20px}.hero h1{font-size:48px;font-weight:800}.course-card{border:1px solid #eee;border-radius:12px;overflow:hidden;transition:0.3s;background:#fff}.course-card:hover{transform:translateY(-5px);box-shadow:0 10px 25px rgb(0 0 0 / .08)}.course-card img{width:100%}.testimonial{background:#f9f9f9;padding:25px;border-radius:10px}.cta{background:#2563eb;color:#fff;text-align:center;padding:80px 20px}