:root{--bs-primary:#2447a6}body{background:#f5f7fb}.card{border:0;border-radius:18px;box-shadow:0 8px 24px rgba(20,30,60,.08)}.btn,.form-control,.form-select{border-radius:12px}.video-wrapper{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:18px;background:#111}.video-wrapper iframe{position:absolute;top:0;left:0;width:100%;height:100%}.module-item{border-left:4px solid #2447a6}.badge{border-radius:999px}