*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    max-width: 40em;
    margin: 0 auto;
    padding: 1em;
    color: #111;
    background: #fff;
}

a {
    color: #1d70b8;
}

a:focus, button:focus, input:focus {
    outline: 3px solid #fd0;
    outline-offset: 0;
}

.skip-link {
    position: absolute;
    left: -9999px;
}

.skip-link:focus {
    position: static;
    left: auto;
}

nav {
    display: flex;
    gap: 1em;
    padding: 0.5em 0;
    border-bottom: 1px solid #ccc;
    margin-bottom: 1.5em;
}

nav a:first-child {
    font-weight: bold;
    margin-right: auto;
}

main {
    min-height: 60vh;
}

footer {
    margin-top: 3em;
    padding-top: 1em;
    border-top: 1px solid #ccc;
    color: #666;
    font-size: 0.875em;
}

h1 { font-size: 1.75em; margin: 0 0 0.5em; }
h2 { font-size: 1.375em; margin: 1.5em 0 0.5em; }
h3 { font-size: 1.125em; margin: 1.25em 0 0.5em; }

label {
    display: block;
    margin-bottom: 0.25em;
    font-weight: bold;
}

input[type="search"],
input[type="text"],
input[type="file"],
textarea {
    display: block;
    width: 100%;
    padding: 0.5em;
    border: 1px solid #333;
    font-size: 1em;
    margin-bottom: 0.75em;
}

#search-form {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5em;
}

#search-form label {
    width: 100%;
}

#search-form input[type="search"] {
    flex: 1;
    margin-bottom: 0;
}

#search-form button {
    flex-shrink: 0;
}

button, input[type="submit"] {
    padding: 0.5em 1em;
    font-size: 1em;
    cursor: pointer;
    border: 1px solid #333;
    background: #111;
    color: #fff;
}

pre {
    background: #f5f5f5;
    padding: 1em;
    overflow-x: auto;
    border: 1px solid #ddd;
    font-size: 0.875em;
    line-height: 1.5;
}

code {
    background: #f5f5f5;
    padding: 0.1em 0.3em;
    font-size: 0.9em;
}


.prompt-list {
    list-style: none;
    padding: 0;
}

.prompt-list li {
    padding: 0.75em 0;
    border-bottom: 1px solid #eee;
}

.meta {
    color: #666;
    font-size: 0.875em;
}

dt {
    font-weight: bold;
    margin-top: 0.75em;
}

dd {
    margin-left: 0;
}

.notice {
    border-left: 4px solid #111;
    padding: 0.75em 1em;
    background: #f9f9f9;
    margin: 1em 0;
}