:root {
    --bd-violet: #7952b3;
    --bd-violet-rgb: 121, 82, 179;
    --bd-teal: #0dcaf0;
    --bd-teal-rgb: 13, 202, 240;
    --bd-sidebar-width: 280px;
    --bd-toc-width: 190px;
    --bd-gap: 1.5rem;
}

html {
    --bs-body-bg: #fff;
    --bs-body-color: #212529;
    --bs-border-color: #dee2e6;
    --bs-link-color: #7952b3;
}

html[data-theme="light"] {
    --bs-body-bg: #fff;
    --bs-body-color: #212529;
    --bs-border-color: #dee2e6;
    --bs-link-color: #7952b3;
    --bd-sidebar-bg: #f8f9fa;
    --bd-navbar-bg: rgba(255, 255, 255, 0.8);
    --bd-code-color: #d63384;
    --bd-heading-color: #212529;
    color-scheme: light;
}

html[data-theme="dark"] {
    --bs-body-bg: #1a1d21;
    --bs-body-color: #dee2e6;
    --bs-border-color: #495057;
    --bs-link-color: #b197fc;
    --bd-sidebar-bg: #212529;
    --bd-navbar-bg: rgba(26, 29, 33, 0.8);
    --bd-code-color: #e599f7;
    --bd-heading-color: #dee2e6;
    color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
    html[data-theme="auto"] {
        --bs-body-bg: #1a1d21;
        --bs-body-color: #dee2e6;
        --bs-border-color: #495057;
        --bs-link-color: #b197fc;
        --bd-sidebar-bg: #212529;
        --bd-navbar-bg: rgba(26, 29, 33, 0.8);
        --bd-code-color: #e599f7;
        --bd-heading-color: #dee2e6;
        color-scheme: dark;
    }
}

@media (prefers-color-scheme: light) {
    html[data-theme="auto"] {
        --bs-body-bg: #fff;
        --bs-body-color: #212529;
        --bs-border-color: #dee2e6;
        --bs-link-color: #7952b3;
        --bd-sidebar-bg: #f8f9fa;
        --bd-navbar-bg: rgba(255, 255, 255, 0.8);
        --bd-code-color: #d63384;
        --bd-heading-color: #212529;
        color-scheme: light;
    }
}

body {
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
    font-family: var(--bs-body-font-family);
    margin: 0;
}

a {
    color: var(--bs-link-color);
}

/* Navbar */
.bd-navbar {
    background-color: var(--bd-navbar-bg);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--bs-border-color);
    padding: 0.5rem 0;
    z-index: 1030;
}

.bd-navbar .navbar-brand {
    font-weight: 700;
    color: var(--bd-violet);
    font-size: 1.25rem;
}

.bd-navbar .nav-link {
    color: var(--bs-body-color);
    font-weight: 500;
}

.bd-navbar .nav-link:hover {
    color: var(--bs-link-color);
}

/* Layout */
.bd-layout {
    display: flex;
    gap: var(--bd-gap);
    min-height: calc(100vh - 60px);
}

.bd-gutter {
    padding-right: calc(var(--bd-gap) * 0.5);
    padding-left: calc(var(--bd-gap) * 0.5);
}

/* Sidebar */
.bd-sidebar {
    position: sticky;
    top: 60px;
    height: calc(100vh - 60px);
    overflow-y: auto;
    padding: 1rem 0;
    width: var(--bd-sidebar-width);
    flex-shrink: 0;
    border-right: 1px solid var(--bs-border-color);
    background-color: var(--bd-sidebar-bg);
}

.bd-links-heading {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--bs-body-color);
    padding: 0.25rem 0.75rem;
    margin-bottom: 0.25rem;
}

.bd-links-link {
    display: block;
    padding: 0.2rem 0.75rem;
    font-size: 0.875rem;
    color: var(--bs-body-color);
    text-decoration: none;
    border-radius: 0.25rem;
}

.bd-links-link:hover {
    color: var(--bs-link-color);
    background-color: rgba(var(--bd-violet-rgb), 0.05);
}

.bd-links-link.active {
    color: var(--bd-violet);
    font-weight: 600;
    background-color: rgba(var(--bd-violet-rgb), 0.1);
}

.bd-links-group {
    margin-bottom: 0.5rem;
}

/* Main content */
.bd-main {
    flex: 1;
    min-width: 0;
    padding: 1.5rem 0;
    max-width: 900px;
}

.bd-intro {
    margin-bottom: 2rem;
}

.bd-intro h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--bd-heading-color);
    margin-bottom: 0.5rem;
}

.bd-intro p.lead {
    font-size: 1.125rem;
    color: var(--bs-body-color);
    opacity: 0.8;
}

.bd-intro > h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--bd-heading-color);
    padding-top: 1.5rem;
    border-top: 1px solid var(--bs-border-color);
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--bd-heading-color);
    margin-top: 1.25rem;
    margin-bottom: 0.75rem;
}

/* Code */
code {
    color: var(--bd-code-color);
    font-size: 0.875em;
}

pre {
    background-color: var(--bd-sidebar-bg);
    border: 1px solid var(--bs-border-color);
    border-radius: 0.375rem;
    padding: 1rem;
    overflow-x: auto;
    margin: 1rem 0;
}

pre code {
    color: var(--bs-body-color);
}

/* Table of Contents */
.bd-toc {
    position: sticky;
    top: 60px;
    height: calc(100vh - 60px);
    overflow-y: auto;
    padding: 1rem 0;
    width: var(--bd-toc-width);
    flex-shrink: 0;
}

.bd-toc-links {
    font-size: 0.8125rem;
}

.bd-toc-links strong {
    font-size: 0.8125rem;
}

.bd-toc-links ul {
    list-style: none;
    padding-left: 0;
}

.bd-toc-links li {
    margin-bottom: 0.125rem;
}

.bd-toc-links a {
    display: block;
    padding: 0.15rem 0;
    color: var(--bs-body-color);
    text-decoration: none;
    opacity: 0.7;
}

.bd-toc-links a:hover {
    color: var(--bs-link-color);
    opacity: 1;
}

/* Tables */
.table {
    color: var(--bs-body-color);
}

/* Responsive */
@media (max-width: 991.98px) {
    .bd-sidebar {
        display: none;
    }

    .bd-toc {
        display: none;
    }

    .bd-layout {
        flex-direction: column;
    }

    .bd-sidebar-dropdown {
        display: block;
        padding: 0.5rem 0;
    }
}

@media (min-width: 992px) {
    .bd-sidebar-dropdown {
        display: none;
    }
}

/* Utility */
.brand-text {
    color: var(--bd-violet);
}