.clearfix{clear:both}.hidden{display:none}body{box-sizing:border-box;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol;margin:0}header{background:#039be5;padding:1rem 5vw}header a{color:#fff;font-weight:800;text-decoration:none}main{display:none;margin:4rem auto 6rem;max-width:650px;width:90vw}#firebaseui-auth-container{font-weight:800;margin:0 auto 6rem;max-width:650px;width:90vw}footer{color:#444;font-size:.875rem;text-align:center}footer a{color:inherit}.products{display:grid;gap:2rem;grid-template-columns:repeat(2,1fr);margin-top:3rem}.product img{width:300px}.product input{border:1px solid #039be5;border-radius:.25rem;font-size:1.125rem}.product input,button{line-height:1.25rem;padding:.25rem}button{display:block;cursor:pointer;background:#fbc02e;border:none;border-radius:.25rem;color:#fff;font-size:1.25rem;font-weight:800;margin-top:.25rem}button:disabled{opacity:.5;cursor:not-allowed}select{transition:box-shadow .2s ease;background:none;border:5px solid #fbc02e;font-size:1.25rem}label{display:block}.test-card-notice{display:block;margin-block-start:1em;margin-block-end:1em;margin-inline-start:0;margin-inline-end:0}.card-number{display:inline;white-space:nowrap;font-family:Menlo,Consolas,monospace;color:#3c4257;font-weight:500}.card-number span{display:inline-block;width:4px}