.clinical-trial-header{background:linear-gradient(135deg,#6a11cb,#2575fc);border-radius:10px;box-shadow:0 4px 20px rgba(0,0,0,.1);color:#fff;margin-bottom:2rem;padding:2rem}.stat-card{background:#fff;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.05);margin-bottom:1.5rem;padding:1.5rem;transition:transform .3s}.stat-card:hover{box-shadow:0 5px 15px rgba(0,0,0,.1);transform:translateY(-5px)}.chart-container{background:#fff;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.05);margin-top:2rem;padding:2rem}.dataset-selector{border:2px solid #2575fc;border-radius:8px;font-weight:500;max-width:400px;padding:.5rem 1rem}