/* ═══════════════════════════════════════════════════════════════
   JD.AI Docs — Custom DocFX Theme
   A modern, developer-focused documentation theme built on
   the DocFX modern template.
   ═══════════════════════════════════════════════════════════════ */

/* ── Font Stack ─────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Instrument+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ── Design Tokens ──────────────────────────────────────────── */
:root {
  /* Brand palette — deep ocean-to-electric blue */
  --jdai-brand: #58a6ff;
  --jdai-brand-rgb: 88, 166, 255;
  --jdai-brand-soft: #79c0ff;
  --jdai-brand-deep: #1f6feb;
  --jdai-brand-glow: rgba(88, 166, 255, 0.12);
  --jdai-accent: #7ee787;
  --jdai-accent-rgb: 126, 231, 135;
  --jdai-warning: #d29922;
  --jdai-danger: #f85149;

  /* Typography */
  --jdai-font-sans: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, sans-serif;
  --jdai-font-mono: 'JetBrains Mono', 'Cascadia Code', 'Fira Code', 'SF Mono', ui-monospace, monospace;

  /* Spacing rhythm */
  --jdai-space-xs: 0.25rem;
  --jdai-space-sm: 0.5rem;
  --jdai-space-md: 1rem;
  --jdai-space-lg: 1.5rem;
  --jdai-space-xl: 2.5rem;
  --jdai-space-2xl: 4rem;

  /* Motion */
  --jdai-ease: cubic-bezier(0.16, 1, 0.3, 1);
  --jdai-duration: 0.5s;

  /* Radius */
  --jdai-radius-sm: 6px;
  --jdai-radius-md: 10px;
  --jdai-radius-lg: 16px;
}

/* ── Light Theme Tokens ─────────────────────────────────────── */
[data-bs-theme="light"] {
  --jdai-bg: #ffffff;
  --jdai-bg-secondary: #f6f8fa;
  --jdai-bg-tertiary: #eef1f5;
  --jdai-text: #1f2328;
  --jdai-text-secondary: #59636e;
  --jdai-text-tertiary: #848d97;
  --jdai-border: #d1d9e0;
  --jdai-border-subtle: #e8ecf0;
  --jdai-code-bg: #f6f8fa;
  --jdai-code-block-bg: #f4f5f7;
  --jdai-header-bg: rgba(255, 255, 255, 0.82);
  --jdai-sidebar-bg: #f9fafb;
  --jdai-sidebar-hover: rgba(88, 166, 255, 0.06);
  --jdai-shadow-sm: 0 1px 3px rgba(31, 35, 40, 0.04);
  --jdai-shadow-md: 0 4px 16px rgba(31, 35, 40, 0.06);
  --jdai-shadow-lg: 0 8px 32px rgba(31, 35, 40, 0.08);
  --jdai-ring: rgba(88, 166, 255, 0.3);
  --jdai-table-stripe: rgba(0, 0, 0, 0.018);
  --jdai-selection: rgba(88, 166, 255, 0.14);
}

/* ── Dark Theme Tokens ──────────────────────────────────────── */
[data-bs-theme="dark"] {
  --jdai-bg: #0d1117;
  --jdai-bg-secondary: #161b22;
  --jdai-bg-tertiary: #1c2129;
  --jdai-text: #e6edf3;
  --jdai-text-secondary: #9198a1;
  --jdai-text-tertiary: #656d76;
  --jdai-border: #30363d;
  --jdai-border-subtle: #21262d;
  --jdai-code-bg: #161b22;
  --jdai-code-block-bg: #0d1117;
  --jdai-header-bg: rgba(13, 17, 23, 0.82);
  --jdai-sidebar-bg: #0d1117;
  --jdai-sidebar-hover: rgba(88, 166, 255, 0.08);
  --jdai-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
  --jdai-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --jdai-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --jdai-ring: rgba(88, 166, 255, 0.35);
  --jdai-table-stripe: rgba(255, 255, 255, 0.015);
  --jdai-selection: rgba(88, 166, 255, 0.2);
}

/* ── Reset & Base ───────────────────────────────────────────── */
::selection {
  background: var(--jdai-selection);
}

body {
  font-family: var(--jdai-font-sans) !important;
  color: var(--jdai-text);
  background: var(--jdai-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  letter-spacing: -0.011em;
}

/* ── Bootstrap Overrides ────────────────────────────────────── */
body {
  --bs-link-color-rgb: var(--jdai-brand-rgb) !important;
  --bs-link-hover-color-rgb: var(--jdai-brand-rgb) !important;
  --bs-body-font-family: var(--jdai-font-sans) !important;
  --bs-code-color: var(--jdai-brand) !important;
}

a {
  color: var(--jdai-brand);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover {
  color: var(--jdai-brand-soft);
  text-decoration: underline;
  text-decoration-color: rgba(var(--jdai-brand-rgb), 0.3);
  text-underline-offset: 3px;
}

/* ════════════════════════════════════════════════════════════════
   HEADER / NAVBAR
   ════════════════════════════════════════════════════════════════ */
header.top-navbar {
  background: var(--jdai-header-bg) !important;
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--jdai-border-subtle) !important;
  box-shadow: var(--jdai-shadow-sm);
}

/* Brand name in navbar */
.navbar .navbar-brand {
  font-weight: 700 !important;
  font-size: 1.15rem !important;
  letter-spacing: -0.03em;
  color: var(--jdai-text) !important;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.navbar .navbar-brand img#logo {
  height: 26px;
  width: 26px;
}

/* Nav links */
.navbar .nav-link {
  font-weight: 500 !important;
  font-size: 0.875rem !important;
  letter-spacing: -0.01em;
  color: var(--jdai-text-secondary) !important;
  transition: color 0.2s ease;
  position: relative;
  padding-bottom: 0.5rem !important;
}
.navbar .nav-link:hover,
.navbar .nav-link.active {
  color: var(--jdai-text) !important;
}
.navbar .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0.5rem;
  right: 0.5rem;
  height: 2px;
  background: var(--jdai-brand);
  border-radius: 1px;
}

/* Theme toggle & icon links in header */
.navbar .bi {
  transition: transform 0.3s var(--jdai-ease), opacity 0.2s ease;
}
.navbar .bi:hover {
  transform: scale(1.15);
}

/* ════════════════════════════════════════════════════════════════
   SIDEBAR / TOC
   ════════════════════════════════════════════════════════════════ */
.sidebar {
  background: var(--jdai-sidebar-bg) !important;
  border-right: 1px solid var(--jdai-border-subtle) !important;
}

/* Sidebar links */
.toc .nav-link {
  font-size: 0.855rem !important;
  font-weight: 450 !important;
  color: var(--jdai-text-secondary) !important;
  border-radius: var(--jdai-radius-sm);
  padding: 0.35rem 0.75rem !important;
  margin: 1px 0;
  transition: all 0.15s ease;
  border-left: 2px solid transparent;
}
.toc .nav-link:hover {
  background: var(--jdai-sidebar-hover) !important;
  color: var(--jdai-text) !important;
}
.toc .nav-link.active {
  color: var(--jdai-brand) !important;
  font-weight: 600 !important;
  background: var(--jdai-brand-glow) !important;
  border-left-color: var(--jdai-brand);
}

/* Filter box */
.toc-filter > input {
  font-family: var(--jdai-font-sans) !important;
  font-size: 0.835rem !important;
  background: var(--jdai-bg) !important;
  border: 1px solid var(--jdai-border) !important;
  border-radius: var(--jdai-radius-sm) !important;
  padding: 0.4rem 0.75rem !important;
  color: var(--jdai-text) !important;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.toc-filter > input:focus {
  outline: none;
  border-color: var(--jdai-brand) !important;
  box-shadow: 0 0 0 3px var(--jdai-ring) !important;
}

/* ════════════════════════════════════════════════════════════════
   MAIN CONTENT AREA
   ════════════════════════════════════════════════════════════════ */
article {
  line-height: 1.72;
  font-size: 1rem;
}

/* ── Headings ───────────────────────────────────────────────── */
article h1 {
  font-family: var(--jdai-font-sans) !important;
  font-weight: 700 !important;
  font-size: 2.25rem !important;
  letter-spacing: -0.035em;
  line-height: 1.18;
  margin-bottom: var(--jdai-space-lg) !important;
  color: var(--jdai-text);
}
article h2 {
  font-family: var(--jdai-font-sans) !important;
  font-weight: 650 !important;
  font-size: 1.55rem !important;
  letter-spacing: -0.025em;
  line-height: 1.25;
  margin-top: var(--jdai-space-2xl) !important;
  margin-bottom: var(--jdai-space-md) !important;
  padding-bottom: var(--jdai-space-sm);
  border-bottom: 1px solid var(--jdai-border-subtle);
  color: var(--jdai-text);
}
article h3 {
  font-family: var(--jdai-font-sans) !important;
  font-weight: 600 !important;
  font-size: 1.25rem !important;
  letter-spacing: -0.018em;
  line-height: 1.35;
  margin-top: var(--jdai-space-xl) !important;
  margin-bottom: var(--jdai-space-sm) !important;
  color: var(--jdai-text);
}
article h4 {
  font-family: var(--jdai-font-sans) !important;
  font-weight: 600 !important;
  font-size: 1.05rem !important;
  letter-spacing: -0.012em;
  margin-top: var(--jdai-space-lg) !important;
  color: var(--jdai-text);
}

/* ── Paragraphs ─────────────────────────────────────────────── */
article p {
  color: var(--jdai-text-secondary);
  margin-bottom: var(--jdai-space-md);
}
article > p:first-of-type {
  font-size: 1.1rem;
  line-height: 1.65;
  color: var(--jdai-text);
}

/* ── Inline Code ────────────────────────────────────────────── */
article code:not(pre code) {
  font-family: var(--jdai-font-mono) !important;
  font-size: 0.855em !important;
  font-weight: 500;
  padding: 0.15em 0.45em !important;
  background: var(--jdai-code-bg) !important;
  border: 1px solid var(--jdai-border-subtle);
  border-radius: 5px !important;
  color: var(--jdai-brand) !important;
  word-break: break-word;
}
[data-bs-theme="light"] article code:not(pre code) {
  color: var(--jdai-brand-deep) !important;
}

/* ── Code Blocks ────────────────────────────────────────────── */
article pre {
  font-family: var(--jdai-font-mono) !important;
  font-size: 0.855rem !important;
  line-height: 1.65 !important;
  background: var(--jdai-code-block-bg) !important;
  border: 1px solid var(--jdai-border) !important;
  border-radius: var(--jdai-radius-md) !important;
  padding: var(--jdai-space-lg) !important;
  overflow-x: auto;
  position: relative;
  box-shadow: var(--jdai-shadow-sm);
}
article pre code {
  font-family: var(--jdai-font-mono) !important;
  font-size: inherit !important;
  background: transparent !important;
  border: none !important;
  padding: 0 !important;
  color: var(--jdai-text) !important;
}

/* Terminal-style code blocks — add a glow on the left edge */
[data-bs-theme="dark"] article pre {
  border-left: 3px solid var(--jdai-brand) !important;
  background: linear-gradient(
    135deg,
    rgba(88, 166, 255, 0.03) 0%,
    var(--jdai-code-block-bg) 40%
  ) !important;
}

/* ── Tables ─────────────────────────────────────────────────── */
article table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--jdai-border) !important;
  border-radius: var(--jdai-radius-md) !important;
  overflow: hidden;
  box-shadow: var(--jdai-shadow-sm);
  margin-bottom: var(--jdai-space-lg);
  font-size: 0.92rem;
}
article table thead th {
  background: var(--jdai-bg-secondary) !important;
  font-weight: 600 !important;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--jdai-text-secondary) !important;
  border-bottom: 2px solid var(--jdai-border) !important;
  padding: 0.75rem 1rem !important;
}
article table tbody td {
  padding: 0.65rem 1rem !important;
  border-bottom: 1px solid var(--jdai-border-subtle) !important;
  color: var(--jdai-text-secondary);
  vertical-align: top;
}
article table tbody tr:nth-child(even) {
  background: var(--jdai-table-stripe);
}
article table tbody tr:last-child td {
  border-bottom: none !important;
}
article table tbody tr:hover {
  background: var(--jdai-sidebar-hover);
}

/* ── Images ─────────────────────────────────────────────────── */
article img {
  border-radius: var(--jdai-radius-lg) !important;
  border: 1px solid var(--jdai-border);
  box-shadow: var(--jdai-shadow-md);
  margin: var(--jdai-space-lg) 0;
  max-width: 100%;
  height: auto;
  transition: box-shadow 0.3s var(--jdai-ease), transform 0.3s var(--jdai-ease);
}
article img:hover {
  box-shadow: var(--jdai-shadow-lg);
  transform: translateY(-2px);
}

/* ── Alerts / Callouts ──────────────────────────────────────── */
article .alert {
  border-radius: var(--jdai-radius-md) !important;
  border-width: 1px !important;
  border-left-width: 4px !important;
  font-size: 0.92rem;
  padding: var(--jdai-space-md) var(--jdai-space-lg) !important;
  margin: var(--jdai-space-lg) 0;
}
article .alert-primary,
article .alert.alert-info,
article .NOTE {
  background: rgba(var(--jdai-brand-rgb), 0.06) !important;
  border-color: rgba(var(--jdai-brand-rgb), 0.2) !important;
  border-left-color: var(--jdai-brand) !important;
}
article .alert-warning,
article .WARNING {
  background: rgba(210, 153, 34, 0.06) !important;
  border-color: rgba(210, 153, 34, 0.2) !important;
  border-left-color: var(--jdai-warning) !important;
}
article .alert-danger,
article .CAUTION,
article .IMPORTANT {
  background: rgba(248, 81, 73, 0.06) !important;
  border-color: rgba(248, 81, 73, 0.2) !important;
  border-left-color: var(--jdai-danger) !important;
}
article .alert-success,
article .TIP {
  background: rgba(var(--jdai-accent-rgb), 0.06) !important;
  border-color: rgba(var(--jdai-accent-rgb), 0.2) !important;
  border-left-color: var(--jdai-accent) !important;
}

/* ── Lists ──────────────────────────────────────────────────── */
article ul, article ol {
  color: var(--jdai-text-secondary);
  padding-left: 1.5em;
}
article li {
  margin-bottom: 0.3em;
}
article li::marker {
  color: var(--jdai-brand);
}

/* ── Blockquotes ────────────────────────────────────────────── */
article blockquote {
  border-left: 3px solid var(--jdai-brand) !important;
  background: var(--jdai-brand-glow);
  padding: var(--jdai-space-md) var(--jdai-space-lg);
  border-radius: 0 var(--jdai-radius-sm) var(--jdai-radius-sm) 0;
  margin: var(--jdai-space-lg) 0;
  color: var(--jdai-text-secondary);
  font-style: normal;
}

/* ── Horizontal Rules ───────────────────────────────────────── */
article hr {
  border: none;
  height: 1px;
  background: var(--jdai-border-subtle);
  margin: var(--jdai-space-2xl) 0;
}

/* ════════════════════════════════════════════════════════════════
   BREADCRUMB
   ════════════════════════════════════════════════════════════════ */
.breadcrumb-item,
.breadcrumb-item a {
  font-size: 0.82rem !important;
  color: var(--jdai-text-tertiary) !important;
}
.breadcrumb-item.active {
  color: var(--jdai-text-secondary) !important;
}

/* ════════════════════════════════════════════════════════════════
   SEARCH
   ════════════════════════════════════════════════════════════════ */
.search input[type="search"] {
  font-family: var(--jdai-font-sans) !important;
  border-radius: var(--jdai-radius-md) !important;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.search input[type="search"]:focus {
  border-color: var(--jdai-brand) !important;
  box-shadow: 0 0 0 3px var(--jdai-ring) !important;
}

/* ════════════════════════════════════════════════════════════════
   RIGHT RAIL / AFFIX (In This Article)
   ════════════════════════════════════════════════════════════════ */
.affix h5 {
  font-family: var(--jdai-font-sans) !important;
  font-weight: 600 !important;
  font-size: 0.75rem !important;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--jdai-text-tertiary) !important;
  margin-bottom: 0.75rem;
}
.affix .nav-link {
  font-size: 0.82rem !important;
  color: var(--jdai-text-tertiary) !important;
  padding: 0.2rem 0 !important;
  transition: color 0.15s ease;
  border-left: 2px solid transparent;
  padding-left: 0.75rem !important;
}
.affix .nav-link:hover {
  color: var(--jdai-text) !important;
}
.affix .nav-link.active {
  color: var(--jdai-brand) !important;
  border-left-color: var(--jdai-brand);
}

/* ════════════════════════════════════════════════════════════════
   FOOTER
   ════════════════════════════════════════════════════════════════ */
footer {
  border-top: 1px solid var(--jdai-border-subtle) !important;
  font-size: 0.82rem !important;
  color: var(--jdai-text-tertiary) !important;
}

/* ════════════════════════════════════════════════════════════════
   LANDING PAGE
   ════════════════════════════════════════════════════════════════ */
body[data-layout="landing"] article h1 {
  font-size: 3rem !important;
  font-weight: 700 !important;
  letter-spacing: -0.04em;
  line-height: 1.1;
  background: linear-gradient(
    135deg,
    var(--jdai-text) 30%,
    var(--jdai-brand) 100%
  ) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  color: transparent !important;
}
[data-bs-theme="dark"] body[data-layout="landing"] article h1,
body[data-layout="landing"][data-bs-theme="dark"] article h1 {
  background: linear-gradient(
    135deg,
    #e6edf3 0%,
    #58a6ff 50%,
    #79c0ff 100%
  ) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  color: transparent !important;
}

/* Hero text on landing */
body[data-layout="landing"] article > p:first-of-type {
  font-size: 1.3rem !important;
  line-height: 1.55;
  color: var(--jdai-text-secondary);
  max-width: 48ch;
}

/* ════════════════════════════════════════════════════════════════
   SCROLL REVEAL ANIMATIONS
   ════════════════════════════════════════════════════════════════ */
.jdai-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--jdai-duration) var(--jdai-ease),
              transform var(--jdai-duration) var(--jdai-ease);
}
.jdai-reveal.jdai-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ════════════════════════════════════════════════════════════════
   NEXT / PREV ARTICLE
   ════════════════════════════════════════════════════════════════ */
.next-article {
  border-top: 1px solid var(--jdai-border-subtle);
  padding-top: var(--jdai-space-lg);
  margin-top: var(--jdai-space-2xl);
}
.next-article a {
  font-weight: 500;
  color: var(--jdai-brand) !important;
}
.next-article a:hover {
  text-decoration: underline;
}

/* ════════════════════════════════════════════════════════════════
   TABS
   ════════════════════════════════════════════════════════════════ */
.tabGroup {
  border: 1px solid var(--jdai-border) !important;
  border-radius: var(--jdai-radius-md) !important;
  overflow: hidden;
  margin: var(--jdai-space-md) 0 var(--jdai-space-lg);
  box-shadow: var(--jdai-shadow-sm);
}
.tabGroup > ul {
  background: var(--jdai-bg-secondary) !important;
  border-bottom: 1px solid var(--jdai-border) !important;
}
.tabGroup > ul > li > a {
  font-family: var(--jdai-font-sans) !important;
  font-size: 0.85rem !important;
  font-weight: 500 !important;
  color: var(--jdai-text-secondary) !important;
  padding: 0.55rem 1rem !important;
  transition: color 0.15s ease;
}
.tabGroup > ul > li > a[aria-selected="true"],
.tabGroup > ul > li > a.active {
  color: var(--jdai-brand) !important;
  border-bottom-color: var(--jdai-brand) !important;
}
.tabGroup > section {
  padding: var(--jdai-space-md) var(--jdai-space-lg) !important;
}

/* ════════════════════════════════════════════════════════════════
   CONTRIBUTION / EDIT LINK
   ════════════════════════════════════════════════════════════════ */
.contribution-link a {
  font-size: 0.82rem;
  color: var(--jdai-text-tertiary) !important;
  border: 1px solid var(--jdai-border);
  border-radius: var(--jdai-radius-sm);
  padding: 0.3rem 0.75rem;
  transition: all 0.15s ease;
}
.contribution-link a:hover {
  color: var(--jdai-brand) !important;
  border-color: var(--jdai-brand);
  text-decoration: none;
  background: var(--jdai-brand-glow);
}

/* ════════════════════════════════════════════════════════════════
   SCROLLBAR (Dark theme only — subtle brand accent)
   ════════════════════════════════════════════════════════════════ */
[data-bs-theme="dark"] ::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
[data-bs-theme="dark"] ::-webkit-scrollbar-track {
  background: transparent;
}
[data-bs-theme="dark"] ::-webkit-scrollbar-thumb {
  background: var(--jdai-border);
  border-radius: 4px;
}
[data-bs-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: var(--jdai-text-tertiary);
}

/* ════════════════════════════════════════════════════════════════
   PRINT STYLES
   ════════════════════════════════════════════════════════════════ */
@media print {
  .jdai-reveal {
    opacity: 1 !important;
    transform: none !important;
  }
  header, .sidebar, .affix, footer, .breadcrumb {
    display: none !important;
  }
}

/* ════════════════════════════════════════════════════════════════
   RESPONSIVE REFINEMENTS
   ════════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  article h1 {
    font-size: 1.75rem !important;
  }
  article h2 {
    font-size: 1.35rem !important;
  }
  .jdai-landing article h1 {
    font-size: 2.2rem !important;
  }
  .jdai-landing article > p:first-of-type {
    font-size: 1.1rem !important;
  }
}