* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 
        Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    margin: 2rem;
}
main {
    width: 40rem;
    margin: 0 auto;
}
h3 {
    margin: 1rem 0 0.5rem 0;
}
label {
    display: block;
}
ul {
    list-style-type: none;
}
li {
    display: flex;
    margin-bottom: 0.5rem;
}
button {
    min-width: 4rem;
    padding: 0.25rem;
    cursor: pointer;
    border-radius: 0.25rem;
}
.request {
    display: flex;
}
input[type="text"] {
    width: 100%;
    padding: 0.25rem;
    font-size: 0.875rem;
    border: 1px solid #aaa;
    border-radius: 0.25rem;
}
li input:nth-child(1) {
    border: 1px solid #aaa;
    border-radius: 0.25rem 0 0 0.25rem;
}
li input:nth-child(2) {
    border: none;
    border-top: 1px solid #aaa;
    border-bottom: 1px solid #aaa;
    border-radius: 0;
}
li button {
    border-radius: 0 0.25rem 0.25rem 0;
}
.request input[type="text"], .request select {
    padding: 0.25rem;
    border: none;
    font-size: 0.875rem;
    border-top: 1px solid #aaa;
    border-bottom: 1px solid #aaa;
    border-radius: 0;
}
.request input[type="text"] {
    width: 100%;
}
.request select {
    border-left: 1px solid #aaa;
    border-right: 1px solid #aaa;
    font-weight: bold;
}
.request span {
    padding: 0.25rem;
    font-size: 0.875rem;
    background-color: #f2f2f2;
    border: 1px solid #aaa;
    border-right: none;
    border-radius: 0.25rem 0 0 0.25rem;
}
.request button {
    border: 1px solid #0059c6;
    background-color: #0375ff;
    color: white;
    border-radius: 0 0.25rem 0.25rem 0;
}
button.add {
    border: 1px solid #0059c6;
    background-color: #0375ff;
    color: white;
}
button.remove {
    border: 1px solid #a42403;
    background-color: #dc3912;
    color: white;
}
code.hljs, code {
    border: 1px solid #aaa;
    padding: 13px;
    display: block;
    border-radius: 0.25rem;
}
.results {
    padding: 1rem 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.option-group {
    margin-bottom: 0.5rem;
}
.option-group label {
    margin-bottom: 0.25rem;
}