body{background:#fff;font-family:'Segoe UI',sans-serif}.checkout-wrapper{min-height:100vh;padding:60px 0}h1{font-size:2.2rem;font-weight:700;color:#0d0d0d}.card{border:1px solid #e0e0e0;border-radius:12px;box-shadow:0 4px 16px rgba(0,0,0,.04)}.card-header{background:#f8f9fa!important;border-bottom:1px solid #e0e0e0}.card-header h4{font-size:1.2rem;font-weight:600;color:#1a1a1a}.form-label{font-weight:600;font-size:.95rem;color:#333}.form-control{border-radius:8px;border-color:#ccc;font-size:1rem;padding:.8rem}.form-control:focus{border-color:#1e88e5;box-shadow:0 0 0 .15rem rgba(30,136,229,.15)}#proceed-payment{background:#00b16a;border:none;border-radius:10px;padding:1rem;font-size:1.1rem;font-weight:600;color:#fff;transition:.3s}#proceed-payment:hover{background:#00985b}.text-primary{color:#00b16a!important}.alert-info{background:#eef7ff;border:1px solid #d8e9ff;border-radius:8px;color:#0b2e59}small.text-muted{font-size:.8rem}