:root {
    --page-edge-padding: 0.75rem;
    --page-edge-padding-desktop: 1.5rem;
}

* {
    scrollbar-color: var(--chamois-light) var(--chamois-lightest);
    scrollbar-width: thin;
}

*::-webkit-scrollbar {
    width: 0.7rem;
    height: 0.7rem;
}

*::-webkit-scrollbar-track {
    background: var(--chamois-lightest);
}

*::-webkit-scrollbar-thumb {
    background: var(--chamois-light);
    border: 0.16rem solid var(--chamois-lightest);
    border-radius: 999px;
}

*::-webkit-scrollbar-thumb:hover {
    background: var(--chamois-medium);
}

body {
    font-family: 'Playfair Display', Georgia, serif;
    background-color: var(--chamois-pale);
}

.container-fluid {
    padding-left: var(--page-edge-padding) !important;
    padding-right: var(--page-edge-padding) !important;
}

@media (min-width: 576px) {
    .container-fluid {
        padding-left: var(--page-edge-padding-desktop) !important;
        padding-right: var(--page-edge-padding-desktop) !important;
    }
}

.book-content p {
    max-width: 65ch;
}

.book-content a {
    color: var(--blue);
    text-decoration-color: color-mix(in srgb, var(--blue) 45%, transparent);
    text-underline-offset: 0.14em;
}

.book-content a:hover,
.book-content a:focus {
    color: var(--brown-medium);
    text-decoration-color: currentColor;
}

code, pre, kbd, samp {
    font-family: 'JetBrains Mono', monospace;
}

.pattern-doc :not(pre) > code {
    color: var(--brown-medium);
    background: var(--chamois-whisper);
    border: 1px solid var(--chamois-light);
    border-radius: 0.22rem;
    padding: 0.05rem 0.22rem;
    font-size: 0.88em;
}

.pattern-doc div.sourceCode {
    max-width: 100%;
    margin: 1.25rem 0 1.75rem;
    overflow-x: auto;
}

.pattern-doc pre.sourceCode {
    margin: 0;
    padding: 0;
    line-height: 1.35;
}

.pattern-doc code.sourceCode {
    color: var(--syntax-base);
    font-size: 0.88rem;
}

.pattern-doc code.sourceCode a {
    color: inherit;
    text-decoration: none;
}

.pattern-doc a code {
    color: inherit;
}

.pattern-doc code.sourceCode .kw {
    color: var(--syntax-keyword);
    font-weight: 600;
}

.pattern-doc code.sourceCode .cf {
    color: var(--syntax-control-flow);
    font-weight: 600;
}

.pattern-doc code.sourceCode .im {
    color: var(--syntax-import);
    font-weight: 600;
}

.pattern-doc code.sourceCode .dt {
    color: var(--syntax-data-type);
}

.pattern-doc code.sourceCode .bu {
    color: var(--syntax-built-in);
}

.pattern-doc code.sourceCode .cr {
    color: var(--syntax-constructor);
}

.pattern-doc code.sourceCode .ot {
    color: var(--syntax-type-signature);
}

.pattern-doc code.sourceCode .at {
    color: var(--syntax-attribute);
}

.pattern-doc code.sourceCode .va {
    color: var(--syntax-variable);
}

.pattern-doc code.sourceCode .st {
    color: var(--syntax-string);
}

.pattern-doc code.sourceCode .ch {
    color: var(--syntax-char);
}

.pattern-doc code.sourceCode .ss,
.pattern-doc code.sourceCode .vs {
    color: var(--syntax-special-string);
}

.pattern-doc code.sourceCode .dv,
.pattern-doc code.sourceCode .bn,
.pattern-doc code.sourceCode .fl {
    color: var(--syntax-number);
}

.pattern-doc code.sourceCode .cn {
    color: var(--syntax-constant);
}

.pattern-doc code.sourceCode .co,
.pattern-doc code.sourceCode .do,
.pattern-doc code.sourceCode .cv {
    color: var(--syntax-comment);
    font-style: italic;
}

.pattern-doc code.sourceCode .op,
.pattern-doc code.sourceCode .sy {
    color: var(--syntax-operator);
}

.pattern-doc code.sourceCode .pp {
    color: var(--syntax-preprocessor);
}

.pattern-doc code.sourceCode .fu {
    color: var(--syntax-function);
}

.pattern-doc code.sourceCode .ex {
    color: var(--syntax-extension);
}

.pattern-doc code.sourceCode .al {
    color: var(--syntax-alert);
    font-weight: 600;
}

.pattern-doc code.sourceCode .er {
    color: var(--syntax-error);
    font-weight: 600;
}

.pattern-doc code.sourceCode .wa {
    color: var(--syntax-warning);
    font-weight: 600;
}

.center-wrapper {
    min-height: calc(100vh - 2rem);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.book-top-rule {
    margin-top: 0.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.15);
}


.pattern-nav-sidebar {
    position: sticky;
    top: 1rem;
    max-height: calc(100vh - 2rem);
    overflow-y: auto;
    padding-right: 1rem;
    border-right: 1px solid rgba(0, 0, 0, 0.12);
}

.pattern-nav-sidebar .nav-link {
    color: rgba(0, 0, 0, 0.72);
    line-height: 1.15;
    padding: 0.12rem 0;
}

.pattern-nav-sidebar .mb-1,
.pattern-nav-sidebar .mb-2,
.pattern-nav-sidebar .mb-3 {
    margin-bottom: 0.2rem !important;
}

.pattern-nav-sidebar .nav-link.active {
    background: transparent;
    color: #000;
    font-weight: 600;
}

.pattern-nav-sidebar a.pattern-nav-part.active {
    font-weight: 900;
}

.pattern-nav-sidebar a.pattern-nav-chapter.active {
    font-weight: 700;
}

.pattern-nav-subsection {
    margin-left: 0.8rem;
}

.pattern-nav-part {
    font-size: 1.12rem;
    font-weight: 800;
}

.pattern-nav-chapter {
    font-size: 1.04rem;
    font-weight: 700;
}

.pattern-nav-group {
    font-size: 0.98rem;
}

.pattern-nav-doc {
    font-size: 0.92rem;
}

.pattern-nav-part-label,
.pattern-part-label {
    letter-spacing: 0.08em;
    font-size: 0.75rem;
}

.pattern-doc {
    scroll-margin-top: 2rem;
    padding-top: 0.75rem;
    margin-top: 1.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.pattern-doc h1 {
    font-size: 1.5rem;
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.pattern-doc h2 {
    font-size: 1.15rem;
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
}

.pattern-doc h3,
.pattern-doc h4 {
    font-size: 1rem;
    margin-top: 1.5rem;
    margin-bottom: 0.6rem;
}

.pattern-doc table {
    margin: 1.25rem 0 1.75rem;
}

.pattern-doc table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid var(--chamois-light);
    border-radius: 0.35rem;
    background: var(--chamois-pale);
    font-size: 0.94rem;
}

.pattern-doc thead {
    background: var(--chamois-light);
}

.pattern-doc tbody tr:nth-child(even) {
    background: var(--chamois-whisper);
}

.pattern-doc th,
.pattern-doc td {
    padding: 0.45rem 0.65rem;
    border-right: 1px solid var(--chamois-light);
    border-bottom: 1px solid var(--chamois-light);
    vertical-align: top;
}

.pattern-doc th:last-child,
.pattern-doc td:last-child {
    border-right: 0;
}

.pattern-doc tbody tr:last-child td {
    border-bottom: 0;
}

.pattern-doc th {
    font-weight: 700;
}

.pattern-doc .d2-diagram {
    margin: 1rem 0 1.5rem;
    max-width: 100%;
    overflow-x: auto;
    text-align: left;
}

.pattern-doc .d2-diagram > svg {
    display: block;
    width: min(var(--d2-width, 100%), 100%);
    height: auto;
}

.pattern-part-heading {
    font-weight: 900;
    border-top: 1px solid rgba(0, 0, 0, 0.25);
    margin-top: 4rem;
    padding-top: 0.75rem;
}

.pattern-chapter-heading {
    font-weight: 700;
    border-top: 1px solid rgba(0, 0, 0, 0.15);
    margin-top: 3rem;
    padding-top: 0.75rem;
}

.pattern-group-heading {
    font-weight: 700;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    margin-top: 2rem;
    padding-top: 0.75rem;
}