body{background:linear-gradient(135deg,#4facfe,#8e44ad);min-height:100vh;margin:0;font-family:Arial,sans-serif}.app{justify-content:center;align-items:center;padding:40px;display:flex}.container{background:#fff;border-radius:20px;width:90%;max-width:700px;padding:30px;box-shadow:0 10px 30px #0003}h1{text-align:center;color:#6c2bd9}input,select{border:1px solid #ccc;border-radius:10px;width:100%;margin-top:10px;margin-bottom:15px;padding:12px;font-size:16px}button{color:#fff;cursor:pointer;background:#6c2bd9;border:none;border-radius:10px;margin-top:10px;padding:12px 18px;font-size:16px}button:hover{background:#5320a8}.lead-card{background:#f5f5f5;border-radius:12px;margin-top:15px;padding:15px}.delete-btn{background:red}.delete-btn:hover{background:#8b0000}