/* ============================================================
   neoo Docs — custom theme
   Design language: aligned with the neoo app palette
   (indigo primary, navy topbar, light canvas / deep-navy dark).
   ============================================================ */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/fonts/inter-400.woff2") format("woff2");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/fonts/inter-500.woff2") format("woff2");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("/fonts/inter-600.woff2") format("woff2");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/fonts/inter-700.woff2") format("woff2");
}

:root {
  /* Height the fixed topbar occupies: 58px bar + 1px bottom border. */
  --topbar-h: 59px;
  --primary: #6366f1;
  --primary-soft: #eef2ff;
  --primary-border: #c7d2fe;
  --on-primary: #ffffff;
  --canvas: #fafafa;
  --surface: #ffffff;
  --border: #e1e7ef;
  --text: #1a1d23;
  --muted: #6b7280;
  --faint: #9ca3af;
  --tableheader: #f8fafc;
  --topbar-bg: #13293d;
  --topbar-text: #ffffff;
  --topbar-muted: #c2d0dc;
  --topbar-border: rgba(255, 255, 255, 0.12);
  --topbar-field: rgba(255, 255, 255, 0.08);
  --code-bg: #f4f6f9;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.05);
  --shadow-lg: 0 12px 32px rgba(16, 24, 40, 0.14);
  --callout-info-bg: #eef2ff;
  --callout-info-border: #c7d2fe;
  --warning-soft: #fff7e0;
  --warning-border: #f2d883;
}

html[data-theme="dark"] {
  --primary: #818cf8;
  --primary-soft: rgba(129, 140, 248, 0.16);
  --primary-border: rgba(129, 140, 248, 0.45);
  --on-primary: #10142e;
  --canvas: #0a111e;
  --surface: #121a2a;
  --border: #233247;
  --text: #f3f4f6;
  --muted: #93a0b4;
  --faint: #6b7787;
  --tableheader: #16223a;
  --topbar-bg: #070d17;
  --topbar-text: #f3f4f6;
  --topbar-muted: #93a0b4;
  --topbar-border: rgba(255, 255, 255, 0.1);
  --topbar-field: rgba(255, 255, 255, 0.07);
  --code-bg: #0f1726;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
  --callout-info-bg: rgba(129, 140, 248, 0.12);
  --callout-info-border: rgba(129, 140, 248, 0.4);
  --warning-soft: rgba(251, 191, 36, 0.12);
  --warning-border: rgba(251, 191, 36, 0.4);
}

* {
  box-sizing: border-box;
}

html {
  scroll-padding-top: calc(var(--topbar-h) + 24px);
}

body {
  margin: 0;
  padding-top: var(--topbar-h);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
  background: var(--canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--primary);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* ---------------- Top bar ---------------- */

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--topbar-border);
}

.topbar-inner {
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 20px;
  height: calc(var(--topbar-h) - 1px);
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--topbar-text);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.brand:hover {
  text-decoration: none;
}
.brand img {
  height: 28px;
  width: 28px;
  object-fit: contain;
}
/* Wordmark: neoo lockup (on-dark variant) on the navy topbar (navy in both themes). */
.brand .brand-logo {
  height: 21px;
  width: auto;
}
.brand .docs-chip {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--topbar-muted);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  padding: 1px 8px;
}

.topbar-spacer {
  flex: 1;
}

/* Search */
.search-wrap {
  position: relative;
  flex: 0 1 460px;
}
.search-input {
  width: 100%;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--topbar-border);
  background: var(--topbar-field);
  color: var(--topbar-text);
  padding: 0 34px 0 34px;
  font: inherit;
  font-size: 13.5px;
  outline: none;
  transition: background 0.15s, border-color 0.15s;
}
.search-input::placeholder {
  color: var(--topbar-muted);
}
.search-input:focus {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.35);
}
.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--topbar-muted);
  pointer-events: none;
  display: flex;
}
.search-kbd {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  color: var(--topbar-muted);
  border: 1px solid var(--topbar-border);
  border-radius: 4px;
  padding: 0 5px;
  line-height: 18px;
  pointer-events: none;
}

.search-panel {
  position: absolute;
  top: 44px;
  left: 0;
  right: 0;
  min-width: 320px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: none;
  max-height: 70vh;
  overflow-y: auto;
}
.search-panel.open {
  display: block;
}
.search-result {
  display: block;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.search-result:last-child {
  border-bottom: none;
}
.search-result:hover,
.search-result.active {
  background: var(--primary-soft);
  text-decoration: none;
}
.search-result .r-section {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--faint);
}
.search-result .r-title {
  font-weight: 600;
  font-size: 14px;
}
.search-result .r-desc {
  font-size: 12.5px;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.search-empty {
  padding: 14px;
  font-size: 13.5px;
  color: var(--muted);
}

/* topbar controls */
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--topbar-muted);
  cursor: pointer;
  padding: 0;
}
.icon-btn:hover {
  background: var(--topbar-field);
  color: var(--topbar-text);
}

.lang-switch {
  display: flex;
  border: 1px solid var(--topbar-border);
  border-radius: 8px;
  overflow: hidden;
}
.lang-switch a,
.lang-switch span {
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--topbar-muted);
  letter-spacing: 0.02em;
}
.lang-switch a:hover {
  color: var(--topbar-text);
  background: var(--topbar-field);
  text-decoration: none;
}
.lang-switch .active {
  background: rgba(255, 255, 255, 0.16);
  color: var(--topbar-text);
}

.menu-btn {
  display: none;
}

/* ---------------- Shell layout ---------------- */

.shell {
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  gap: 0;
}

.sidebar {
  width: 268px;
  flex-shrink: 0;
  position: sticky;
  top: var(--topbar-h);
  height: calc(100vh - var(--topbar-h));
  overflow-y: auto;
  padding: 28px 16px 48px 0;
  border-right: 1px solid var(--border);
  scrollbar-width: thin;
}

.nav-group {
  margin-bottom: 6px;
}
.nav-group summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  border-radius: 7px;
  font-weight: 600;
  font-size: 13.5px;
  color: var(--text);
  user-select: none;
}
.nav-group summary::-webkit-details-marker {
  display: none;
}
.nav-group summary:hover {
  background: var(--primary-soft);
}
.nav-group summary .chev {
  color: var(--faint);
  transition: transform 0.15s;
  display: flex;
}
.nav-group[open] summary .chev {
  transform: rotate(90deg);
}
.nav-group ul {
  list-style: none;
  margin: 2px 0 8px;
  padding: 0 0 0 10px;
}
.nav-group li a,
.nav-single > a {
  display: block;
  padding: 5px 10px;
  border-radius: 7px;
  font-size: 13.5px;
  color: var(--muted);
  border-left: 2px solid transparent;
  margin-left: 2px;
}
.nav-group li a:hover,
.nav-single > a:hover {
  color: var(--text);
  background: var(--primary-soft);
  text-decoration: none;
}
.nav-group li a.active {
  color: var(--primary);
  font-weight: 600;
  background: var(--primary-soft);
  border-left: 2px solid var(--primary);
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}
.nav-single {
  margin-bottom: 6px;
}
.nav-single > a {
  font-weight: 600;
  font-size: 13.5px;
  color: var(--text);
  border-left: none;
}
.nav-single > a.active {
  color: var(--primary);
  background: var(--primary-soft);
}

/* ---------------- Content ---------------- */

.main {
  flex: 1;
  min-width: 0;
  display: flex;
  gap: 40px;
  padding: 36px 0 80px 44px;
}

.article-col {
  flex: 1;
  min-width: 0;
  max-width: 780px;
}

.breadcrumbs {
  font-size: 12.5px;
  color: var(--faint);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.breadcrumbs a {
  color: var(--muted);
}
.breadcrumbs .sep {
  color: var(--faint);
}

/* TOC */
.toc {
  width: 230px;
  flex-shrink: 0;
  position: sticky;
  top: calc(var(--topbar-h) + 35px);
  align-self: flex-start;
  max-height: calc(100vh - var(--topbar-h) - 71px);
  overflow-y: auto;
  font-size: 13px;
  padding-left: 4px;
}
.toc .toc-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--faint);
  margin-bottom: 10px;
}
.toc nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.toc nav ul ul {
  padding-left: 14px;
}
.toc nav a {
  display: block;
  padding: 3px 0 3px 10px;
  color: var(--muted);
  border-left: 2px solid var(--border);
}
.toc nav a:hover {
  color: var(--text);
  text-decoration: none;
}
.toc nav a.active {
  color: var(--primary);
  border-left-color: var(--primary);
  font-weight: 600;
}

/* ---------------- Prose ---------------- */

.prose {
  font-size: 15px;
}
.prose h1 {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin: 0 0 14px;
}
.prose .lead,
.prose h1 + p {
  font-size: 16.5px;
  color: var(--muted);
  margin: 0 0 28px;
  line-height: 1.6;
}
.prose h2 {
  font-size: 21px;
  font-weight: 650;
  letter-spacing: -0.01em;
  margin: 44px 0 12px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.prose h1 + h2,
.prose .lead + h2 {
  border-top: none;
  padding-top: 0;
  margin-top: 28px;
}
.prose h3 {
  font-size: 16.5px;
  font-weight: 650;
  margin: 30px 0 8px;
}
.prose h4 {
  font-size: 14.5px;
  font-weight: 650;
  margin: 22px 0 6px;
}
.prose p {
  margin: 0 0 14px;
}
.prose ul,
.prose ol {
  margin: 0 0 14px;
  padding-left: 24px;
}
.prose li {
  margin-bottom: 5px;
}
.prose li > ul,
.prose li > ol {
  margin-top: 5px;
}
.prose strong {
  font-weight: 600;
}
.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 36px 0;
}
.prose img {
  max-width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
}

/* headings anchor links */
.prose .h-anchor {
  opacity: 0;
  margin-left: 8px;
  font-weight: 400;
  color: var(--faint);
  font-size: 0.85em;
}
.prose h2:hover .h-anchor,
.prose h3:hover .h-anchor,
.prose h4:hover .h-anchor {
  opacity: 1;
  text-decoration: none;
}

/* tables */
.prose .table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin: 0 0 18px;
  background: var(--surface);
}
.prose table {
  border-collapse: collapse;
  width: 100%;
  font-size: 13.5px;
}
.prose thead th {
  background: var(--tableheader);
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--muted);
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.prose tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.prose tbody tr:last-child td {
  border-bottom: none;
}

/* code */
.prose code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  font-size: 0.86em;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 1px 5px;
}
.prose pre {
  background: #272822;
  border-radius: 10px;
  padding: 14px 16px;
  overflow-x: auto;
  margin: 0 0 18px;
}
.prose pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 13px;
}

/* callouts (blockquotes) */
.prose blockquote {
  margin: 0 0 18px;
  padding: 12px 16px;
  background: var(--callout-info-bg);
  border: 1px solid var(--callout-info-border);
  border-left: 3px solid var(--primary);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
}
.prose blockquote p {
  margin: 0;
}
.prose blockquote p + p {
  margin-top: 8px;
}

/* ---------------- Cards ---------------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px;
  margin: 24px 0;
}
.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  color: var(--text);
  box-shadow: var(--shadow);
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.card:hover {
  text-decoration: none;
  border-color: var(--primary-border);
  box-shadow: var(--shadow-lg);
  transform: translateY(-1px);
}
.card .card-icon {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}
.card h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 650;
}
.card p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.55;
}

/* ---------------- Home / hero ---------------- */

.hero {
  text-align: center;
  padding: 48px 20px 46px;
}
.hero h1 {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}
.hero p {
  font-size: 16px;
  color: var(--muted);
  margin: 0 auto 28px;
  max-width: 560px;
}
.hero .search-wrap {
  max-width: 560px;
  margin: 0 auto;
}
.hero .search-input {
  height: 48px;
  font-size: 15px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: var(--shadow);
  padding-left: 42px;
}
.hero .search-input::placeholder {
  color: var(--faint);
}
.hero .search-input:focus {
  border-color: var(--primary);
}
.hero .search-icon {
  left: 14px;
  color: var(--faint);
}
.hero .search-panel {
  top: 56px;
  text-align: left;
}

.home-wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px 80px;
}
.home-section-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--faint);
  margin: 26px 0 4px;
}

/* ---------------- Prev / next ---------------- */

.pager {
  display: flex;
  gap: 14px;
  margin-top: 48px;
}
.pager a {
  flex: 1;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--text);
  box-shadow: var(--shadow);
}
.pager a:hover {
  text-decoration: none;
  border-color: var(--primary-border);
}
.pager .pager-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--faint);
  display: block;
  margin-bottom: 3px;
}
.pager .pager-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}
.pager .next {
  text-align: right;
}

/* ---------------- Footer ---------------- */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 22px 20px;
  text-align: center;
  font-size: 12.5px;
  color: var(--faint);
}
.site-footer .heart {
  color: #e5484d;
}

/* ---------------- Responsive ---------------- */

@media (max-width: 1200px) {
  .toc {
    display: none;
  }
}

@media (max-width: 900px) {
  .menu-btn {
    display: inline-flex;
  }
  .shell {
    padding: 0 16px;
  }
  .sidebar {
    position: fixed;
    left: 0;
    top: var(--topbar-h);
    bottom: 0;
    height: auto;
    z-index: 50;
    background: var(--surface);
    border-right: 1px solid var(--border);
    padding: 20px 16px 40px 16px;
    transform: translateX(-105%);
    transition: transform 0.2s ease;
    width: 290px;
    box-shadow: var(--shadow-lg);
  }
  body.sidebar-open .sidebar {
    transform: translateX(0);
  }
  .sidebar-backdrop {
    display: none;
  }
  body.sidebar-open .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: var(--topbar-h) 0 0 0;
    background: rgba(10, 17, 30, 0.45);
    z-index: 40;
  }
  .main {
    padding-left: 0;
  }
  .search-wrap {
    flex: 1;
  }
  .search-kbd,
  .brand .brand-name {
    display: none;
  }
  .hero {
    padding: 32px 16px 26px;
  }
  .hero h1 {
    font-size: 27px;
  }
  .hero p {
    font-size: 15px;
    margin-bottom: 22px;
  }
  .pager {
    flex-direction: column;
  }
}