body { background: #f6f8fb; } .hero { background: linear-gradient(135deg, #0d6efd, #031b4e); color: white; border-radius: 24px; padding: 56px 28px; } .card { border: 0; border-radius: 18px; box-shadow: 0 10px 30px rgba(0,0,0,.06); } .btn { border-radius: 12px; } .topic-badge { background: #e8f1ff; color: #0d6efd; padding: 6px 10px; border-radius: 99px; font-size: 12px; }