/* ============================================================
   Runic docs — custom theme layer
   Colors derived from logo: #354853 / #254855 / #254754
   Style inspired by pydantic.dev (Inter font, clean layout)
   ============================================================ */

/* ── Fonts (Inter + JetBrains Mono via Google Fonts) ── */
@import url('https://fonts.googleapis.com/css2?family=Geist+Mono:ital,wght@0,100..900;1,100..900&family=Geist:ital,wght@0,100..900;1,100..900&family=Stack+Sans+Notch:wght@200..700&display=swap');

/* ── Root variables not covered by furo's CSS vars ── */
:root {
    --runic-radius: 8px;
    --runic-radius-sm: 4px;
    --runic-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.08), 0 1px 2px -1px rgb(0 0 0 / 0.06);
    --runic-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.06);
    --runic-transition: 150ms ease;
    --font-stack--headings: "Stack Sans Notch", sans-serif;
}

body {
    /* Override Furo brand colors (Matches logo: #354853) */
    --color-brand-primary: #354853;
    --color-brand-content: #254855;
    --color-brand-visited: #254754;

    /* Link colors */
    --color-link: var(--color-brand-primary);
    --color-link--hover: var(--color-brand-content);
    --color-link-underline: transparent;
    --color-link-underline--hover: var(--color-brand-primary);
    --color-link--visited: var(--color-brand-visited);
    --color-link--visited--hover: var(--color-brand-primary);

    /* Admonition overrides */
    --color-admonition-title: var(--color-brand-primary);
    --color-admonition-title-background: rgba(53, 72, 83, 0.15);
}

@media (prefers-color-scheme: dark) {
    body:not([data-theme="light"]) {
        /* Lighter blue-grey for dark mode */
        --color-brand-primary: #87afc2;
        --color-brand-content: #95b8c9;
        --color-brand-visited: #83aabf;

        --color-link: var(--color-brand-content);
        --color-link--hover: #cae3ef;
        --color-link-underline: transparent;
        --color-link-underline--hover: var(--color-brand-content);
        --color-link--visited: var(--color-brand-visited);
        --color-link--visited--hover: var(--color-brand-content);

        --color-admonition-title: var(--color-brand-primary);
        --color-admonition-title-background: rgba(135, 175, 194, 0.15);
    }
}

body[data-theme="dark"] {
    /* Lighter blue-grey for dark mode */
    --color-brand-primary: #87afc2;
    --color-brand-content: #95b8c9;
    --color-brand-visited: #83aabf;

    --color-link: var(--color-brand-content);
    --color-link--hover: #cae3ef;
    --color-link-underline: transparent;
    --color-link-underline--hover: var(--color-brand-content);
    --color-link--visited: var(--color-brand-visited);
    --color-link--visited--hover: var(--color-brand-content);

    --color-admonition-title: var(--color-brand-primary);
    --color-admonition-title-background: rgba(135, 175, 194, 0.15);
}

/* ============================================================
   SIDEBAR
   ============================================================ */

/* ── Sidebar brand: logo + name on ONE ROW ── */
a.sidebar-brand {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 0.65rem;
    padding: 1rem 1rem 0.75rem;
    text-decoration: none;
}

/* Logo container — don't let it push text below */
.sidebar-logo-container {
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

img.sidebar-logo {
    height: 36px !important;
    width: auto !important;
    max-height: 36px !important;
    display: block;
}

/* Brand text next to the logo */
.sidebar-brand-text,
.sidebar-brand-name {
    font-family: var(--font-stack--headings);
    font-size: 1.05rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--color-sidebar-brand-text);
    line-height: 1;
}

/* Section captions (e.g. "Getting started", "Reference") */
.sidebar-caption span {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-sidebar-caption-text);
}

/* Nav links */
.sidebar-tree a {
    font-size: 0.88rem;
    font-weight: 400;
    border-radius: var(--runic-radius-sm);
    transition: background var(--runic-transition), color var(--runic-transition);
}

.sidebar-tree .current > a,
.sidebar-tree .current-page > a {
    font-weight: 600;
    color: var(--color-brand-primary);
}

/* Expander chevrons — smooth rotate */
.sidebar-tree .toctree-expand {
    transition: transform var(--runic-transition);
}

/* Collapse button (sidebar toggle) */
.sidebar-toggle-button {
    border-radius: var(--runic-radius-sm);
    transition: background var(--runic-transition);
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */

body {
    font-family: var(--font-stack);
    font-size: 15.5px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-stack--headings);
}

h1 {
    font-size: 2.2rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    line-height: 1.2;
    margin-top: 0;
}

h2 {
    font-size: 1.6rem;
    font-weight: 400;
    letter-spacing: 0.03em;
    border-bottom: 1px solid var(--color-background-border);
    padding-bottom: 0.3rem;
    margin-top: 2.25rem;
}

h3 {
    font-size: 1.3rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    margin-top: 1.75rem;
}

h4, h5, h6 {
    font-size: 1.1rem;
    font-weight: 400;
    margin-top: 1.25rem;
}

/* Page title rubric (version badge) */
.rubric {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--color-foreground-muted);
    margin-top: -0.8rem;
    margin-bottom: 1.5rem;
    letter-spacing: 0.01em;
}

/* ============================================================
   CONTENT LAYOUT
   ============================================================ */

/* Content layout: wider and more breathing room */
.content-container {
    max-width: 1280px;
}

/* Top margin for the article content area */
article.bd-article,
.bd-article-container {
    padding: 0 1rem;
}

/* Furo article wrapper — push the content down from the header */
div.article-container {
    padding-top: 2rem;
}

/* Page title block */
section > h1:first-child,
article > section > h1:first-child {
    margin-top: 0.5rem;
}

/* ============================================================
   INLINE CODE & CODE BLOCKS
   ============================================================ */

/* Inline code */
code.literal,
p code,
li code,
td code {
    font-family: var(--font-stack--monospace);
    font-size: 0.85em;
    font-weight: 500;
    padding: 0.15em 0.4em;
    border-radius: var(--runic-radius-sm);
    background: var(--color-background-secondary);
    border: 1px solid var(--color-background-border);
}

/* Code blocks */
.highlight {
    border-radius: var(--runic-radius) !important;
    overflow: hidden;
    box-shadow: var(--runic-shadow);
    margin: 1rem 0;
}

div[class*="highlight"] {
    border-radius: var(--runic-radius) !important;
}

pre {
    font-family: var(--font-stack--monospace) !important;
    font-size: 0.85em !important;
    line-height: 1.6;
    padding: 1em 1.2em !important;
    margin: 0 !important;
    overflow-x: auto;
}

/* Code block filename / title bar */
div.code-block-caption {
    background: var(--color-background-secondary);
    border-bottom: 1px solid var(--color-background-border);
    padding: 0.4em 1em;
    font-size: 0.78em;
    font-weight: 500;
    font-family: var(--font-stack--monospace);
    color: var(--color-foreground-muted);
    border-radius: var(--runic-radius) var(--runic-radius) 0 0;
}

/* Copy button */
button.copybtn {
    top: 0.5em !important;
    right: 0.5em !important;
    border-radius: var(--runic-radius-sm) !important;
    opacity: 0;
    transition: opacity var(--runic-transition), background var(--runic-transition) !important;
}

.highlight:hover button.copybtn {
    opacity: 1;
}

/* ============================================================
   ADMONITIONS  (note / tip / warning / important / danger)
   ============================================================ */

.admonition {
    border-radius: var(--runic-radius);
    border: none;
    border-left: 4px solid var(--color-brand-primary);
    background: #f4f5f7; /* Very light gray */
    padding: 0.9rem 1.1rem;
    margin: 1.25rem 0;
    box-shadow: var(--runic-shadow);
}

.admonition > .admonition-title {
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 0.4rem;
    color: var(--color-brand-primary);
}

.admonition > .admonition-title::before {
    content: "";
    display: none;  /* remove default icon */
}

/* Warning / danger get amber / red accents */
.admonition.warning {
    border-left-color: #d97706;
}
.admonition.warning > .admonition-title {
    color: #d97706;
}

.admonition.danger,
.admonition.error {
    border-left-color: #dc2626;
}
.admonition.danger > .admonition-title,
.admonition.error > .admonition-title {
    color: #dc2626;
}

.admonition.tip,
.admonition.hint {
    border-left-color: #059669;
}
.admonition.tip > .admonition-title,
.admonition.hint > .admonition-title {
    color: #059669;
}

/* ============================================================
   SPHINX-DESIGN CARDS  (used on index page grid)
   ============================================================ */

.sd-card {
    border-radius: var(--runic-radius) !important;
    border: 1px solid var(--color-background-border) !important;
    box-shadow: var(--runic-shadow) !important;
    transition: box-shadow var(--runic-transition), border-color var(--runic-transition);
    background: var(--color-background-primary) !important;
}

.sd-card:hover {
    box-shadow: var(--runic-shadow-md) !important;
    border-color: var(--color-brand-primary) !important;
}

.sd-card-title {
    font-size: 0.95rem !important;
    font-weight: 600 !important;
    color: var(--color-brand-primary) !important;
}

.sd-card-body p {
    font-size: 0.88rem;
    color: var(--color-foreground-secondary);
    margin: 0;
}

/* ============================================================
   SPHINX-DESIGN DROPDOWNS (collapsible sections)
   ============================================================ */

details.sd-dropdown {
    border-radius: var(--runic-radius) !important;
    border: 1px solid var(--color-background-border) !important;
    margin: 0.75rem 0;
    background: var(--color-background-secondary);
}

details.sd-dropdown summary.sd-summary-title {
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.65rem 1rem;
    cursor: pointer;
    user-select: none;
    border-radius: var(--runic-radius);
    transition: background var(--runic-transition);
    color: var(--color-brand-primary);
}

details.sd-dropdown summary.sd-summary-title:hover {
    background: var(--color-background-hover);
}

details.sd-dropdown > .sd-summary-content {
    padding: 0 1rem 0.75rem;
    font-size: 0.9rem;
}

/* ============================================================
   API DOCS  (autoclass, autofunction, etc.)
   ============================================================ */

/* Method / class signature bar */
dl.class > dt.sig,
dl.function > dt.sig,
dl.method > dt.sig,
dl.attribute > dt.sig,
dl.exception > dt.sig {
    background: var(--color-background-secondary);
    border: 1px solid var(--color-background-border);
    border-radius: var(--runic-radius);
    padding: 0.55em 0.9em 0.55em 3.4em;
    text-indent: -2.5em;
    font-family: var(--font-stack--monospace);
    font-size: 0.88em;
    line-height: 1.4;
    margin-bottom: 0;
    margin-left: 0;
    margin-right: 0;
    word-break: break-word;
}

/* Signature: class/method name */
dl.class > dt.sig .sig-name,
dl.function > dt.sig .sig-name,
dl.method > dt.sig .sig-name {
    font-weight: 600;
    color: var(--color-brand-primary);
}

/* Parameter annotations */
dl.class > dt.sig .sig-param,
dl.function > dt.sig .sig-param {
    color: var(--color-foreground-secondary);
}

/* Description body — keep flush-left, no extra indent */
dl.class > dd,
dl.function > dd,
dl.method > dd {
    margin-top: 0.4rem;
    margin-left: 0;
    padding-left: 0;
    border-left: none;
}

/* Field lists (Parameters, Returns, etc.) */
.field-list > dt {
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.03em;
    color: var(--color-foreground-secondary);
}

/* ============================================================
   TABLES
   ============================================================ */

table.docutils {
    border-radius: var(--runic-radius);
    overflow: hidden;
    box-shadow: var(--runic-shadow);
    border-collapse: collapse;
    width: 100%;
    margin: 1rem 0;
    font-size: 0.88rem;
}

table.docutils thead tr {
    background: var(--color-background-secondary);
    border-bottom: 2px solid var(--color-background-border);
}

table.docutils thead th {
    font-weight: 600;
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 0.6rem 0.9rem;
    color: var(--color-foreground-secondary);
}

table.docutils tbody td {
    padding: 0.55rem 0.9rem;
    border-bottom: 1px solid var(--color-background-border);
    vertical-align: top;
}

table.docutils tbody tr:last-child td {
    border-bottom: none;
}

table.docutils tbody tr:hover {
    background: var(--color-background-hover);
}

/* ============================================================
   SEARCH
   ============================================================ */

.sidebar-search-container {
    margin-right: 2rem !important;
}

.sidebar-search-container input[type="search"] {
    border-radius: var(--runic-radius-sm);
    font-size: 0.85rem;
    transition: border-color var(--runic-transition), box-shadow var(--runic-transition);
}

.sidebar-search-container input[type="search"]:focus {
    box-shadow: 0 0 0 2px var(--color-brand-primary);
}

.sidebar-search {
    border: 1px solid var(--color-sidebar-search-border) !important;
}

/* ============================================================
   CONTENT NAVIGATION  (prev / next page)
   ============================================================ */

.prev-next-area {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-background-border);
}

.prev-next-info .ref-type {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-foreground-muted);
}

/* ============================================================
   TOC  (right-hand "on this page") & SIDEBAR LAYOUT
   ============================================================ */

/* Main content padding (gap to sidebars) */
.content {
    padding: 0 2rem !important; /* 2rem gap overrides Furo's 0 3em */
}

/* Left sidebar base widths */
.sidebar-container {
    width: 18rem !important;
}
.sidebar-drawer {
    min-width: 18rem !important;
    max-width: 22rem !important;
    /* Furo aligns right edge to content. Content is 46em. Half = 23. + 2rem padding = 25 */
    width: calc(50% - 22rem) !important;
}

.sidebar-tree {
    padding-right: 2rem !important;
}

/* Right TOC hide breakpoint (82em in Furo) */
@media (min-width: 82em) {
    .toc-drawer {
        width: 22rem !important;
        min-width: 22rem !important;
        flex: 0 0 22rem !important;
    }
}
@media (max-width: 82em) {
    .toc-drawer {
        width: 22rem !important;
        right: -22rem !important;
    }
}

/* Left sidebar hide breakpoint (63em in Furo) */
@media (max-width: 63em) {
    .sidebar-drawer {
        left: -22rem !important;
        width: 22rem !important;
        max-width: 22rem !important;
    }
    #__navigation:checked ~ .page .sidebar-drawer {
        left: 0 !important;
    }
}

/* Smaller font + no mid-word breaks */
.toc-drawer {
    font-size: 0.75rem;
}

.toc-title {
    font-size: 0.68rem !important;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-foreground-muted);
}

.toc-tree li {
    font-size: 0.75rem;
    line-height: 1.45;
}

.toc-tree a {
    color: var(--color-foreground-secondary);
    transition: color var(--runic-transition);
    /* Truncate long entries instead of mid-letter breaking */
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.toc-tree a:hover {
    color: var(--color-brand-primary);
    overflow: visible;
    white-space: normal;
}

.toc-tree li.scroll-current > a {
    font-weight: 600;
    color: var(--color-brand-primary);
}

/* ============================================================
   DARK MODE OVERRIDES
   ============================================================ */

@media (prefers-color-scheme: dark) {
    .admonition {
        background: rgba(255, 255, 255, 0.04);
    }

    .sd-card {
        background: var(--color-background-secondary) !important;
    }
}

/* furo's dark-mode toggle activates this */
body[data-theme="dark"] .admonition {
    background: rgba(255, 255, 255, 0.04);
}

body[data-theme="dark"] .sd-card {
    background: var(--color-background-secondary) !important;
}

/* ============================================================
   MISC
   ============================================================ */

/* External link icon — smaller */
.reference.external::after {
    font-size: 0.7em;
    vertical-align: super;
}

/* hr separator */
.rst-content hr,
article hr {
    border: none;
    border-top: 1px solid var(--color-background-border);
    margin: 2rem 0;
}

/* Kbd shortcut rendering */
kbd {
    font-family: var(--font-stack--monospace);
    font-size: 0.8em;
    padding: 0.15em 0.45em;
    border-radius: var(--runic-radius-sm);
    border: 1px solid var(--color-background-border);
    background: var(--color-background-secondary);
    box-shadow: 0 1px 1px rgb(0 0 0 / 0.1);
}