/* ============================================================
   READER — Public Documentation Site Styles
   ============================================================ */

/* --- Tokens ------------------------------------------------- */
:root {
  --reader-font: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --reader-font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', Menlo, monospace;

  --reader-sidebar-w: 260px;
  --reader-toc-w: 220px;
  --reader-content-max: 720px;
  --reader-header-h: 56px;

  --reader-bg: #ffffff;
  --reader-bg-alt: #f8f9fa;
  --reader-sidebar-bg: #fafafa;
  --reader-sidebar-border: #eaeaea;
  --reader-sidebar-hover: #f0f0f0;
  --reader-sidebar-active-bg: #eff6ff;
  --reader-sidebar-active-text: #2563eb;

  --reader-text: #1a1a1a;
  --reader-text-secondary: #6b7280;
  --reader-text-faint: #9ca3af;
  --reader-border: #e5e7eb;
  --reader-accent: #2563eb;
  --reader-accent-hover: #1d4ed8;

  --reader-radius: 6px;
  --reader-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

/* --- Dark Mode ---------------------------------------------- */
[data-theme="dark"] {
  --reader-bg: #111111;
  --reader-bg-alt: #1a1a1a;
  --reader-sidebar-bg: #141414;
  --reader-sidebar-border: #2a2a2a;
  --reader-sidebar-hover: #222222;
  --reader-sidebar-active-bg: #1e2a3a;
  --reader-sidebar-active-text: #60a5fa;

  --reader-text: #e5e5e5;
  --reader-text-secondary: #a1a1aa;
  --reader-text-faint: #71717a;
  --reader-border: #2a2a2a;
  --reader-accent: #60a5fa;
  --reader-accent-hover: #93bbfd;

  --reader-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .reader-body {
  color: #d4d4d8;
}

[data-theme="dark"] .reader-body code {
  background: #1e1e2e;
  color: #f0abfc;
}

[data-theme="dark"] .reader-body blockquote {
  background: #1a1a2e;
  color: #a1a1aa;
}

[data-theme="dark"] .reader-body th {
  background: #1a1a1a;
}

[data-theme="dark"] .reader-alert-success {
  background: #064e3b;
  color: #a7f3d0;
  border-color: #065f46;
}

[data-theme="dark"] .reader-alert-error {
  background: #450a0a;
  color: #fca5a5;
  border-color: #991b1b;
}

[data-theme="dark"] .reader-alert-info {
  background: #172554;
  color: #93c5fd;
  border-color: #1e40af;
}

/* --- Reset -------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--reader-font);
  font-size: 15px;
  line-height: 1.6;
  color: var(--reader-text);
  background: var(--reader-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* --- Header ------------------------------------------------- */
.reader-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--reader-header-h);
  background: var(--reader-bg);
  border-bottom: 1px solid var(--reader-border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  z-index: 100;
  gap: 12px;
}

.reader-header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  color: var(--reader-text);
  text-decoration: none;
  min-width: 0;
}

.reader-header-brand:hover { text-decoration: none; }

.reader-header-logo {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--reader-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.reader-header-sep {
  color: var(--reader-text-faint);
  font-weight: 300;
  font-size: 20px;
  margin: 0 2px;
}

.reader-header-space {
  color: var(--reader-text-secondary);
  font-weight: 500;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.reader-header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.reader-hamburger {
  display: none;
  background: none;
  border: 1px solid var(--reader-border);
  border-radius: var(--reader-radius);
  padding: 6px;
  cursor: pointer;
  color: var(--reader-text);
  line-height: 0;
}

/* --- Dark Mode Toggle --------------------------------------- */
.reader-theme-toggle {
  background: none;
  border: 1px solid var(--reader-border);
  border-radius: var(--reader-radius);
  padding: 6px;
  cursor: pointer;
  color: var(--reader-text-secondary);
  line-height: 0;
  transition: color 0.15s, border-color 0.15s;
}

.reader-theme-toggle:hover {
  color: var(--reader-text);
  border-color: var(--reader-text-faint);
}

.reader-icon-moon { display: none; }

[data-theme="dark"] .reader-icon-sun { display: none; }
[data-theme="dark"] .reader-icon-moon { display: block; }

/* --- Shell -------------------------------------------------- */
.reader-shell {
  display: flex;
  padding-top: var(--reader-header-h);
  min-height: 100vh;
}

/* --- Sidebar ------------------------------------------------ */
.reader-sidebar {
  position: fixed;
  top: var(--reader-header-h);
  left: 0;
  bottom: 0;
  width: var(--reader-sidebar-w);
  background: var(--reader-sidebar-bg);
  border-right: 1px solid var(--reader-sidebar-border);
  overflow-y: auto;
  overflow-x: hidden;
  padding: 12px 0;
  z-index: 90;
}

.reader-sidebar::-webkit-scrollbar { width: 4px; }
.reader-sidebar::-webkit-scrollbar-thumb { background: var(--reader-border); border-radius: 4px; }

/* --- Sidebar Search ---------------------------------------- */
.reader-nav-search {
  position: relative;
  margin: 0 12px 8px;
}

.reader-nav-search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--reader-text-faint);
  pointer-events: none;
}

.reader-nav-search-input {
  width: 100%;
  padding: 6px 10px 6px 30px;
  font-size: 12.5px;
  font-family: var(--reader-font);
  border: 1px solid var(--reader-border);
  border-radius: var(--reader-radius);
  background: var(--reader-bg);
  color: var(--reader-text);
  outline: none;
  transition: border-color 0.15s;
}

.reader-nav-search-input::placeholder {
  color: var(--reader-text-faint);
}

.reader-nav-search-input:focus {
  border-color: var(--reader-accent);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.08);
}

/* --- Sidebar Nav -------------------------------------------- */
.reader-nav { list-style: none; margin: 0; padding: 0; }

.reader-nav-children { padding-left: 0; }

.reader-nav-item { position: relative; }

.reader-nav-row {
  display: flex;
  align-items: center;
  padding-left: calc(12px + var(--depth, 0) * 16px);
  border-radius: 6px;
  margin: 0 8px 1px;
}

.reader-nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
  color: var(--reader-text-faint);
  border-radius: 4px;
  transition: background 0.12s, color 0.12s, transform 0.2s ease;
}

.reader-nav-toggle:hover {
  background: var(--reader-sidebar-hover);
  color: var(--reader-text-secondary);
}

.reader-nav-item.expanded > .reader-nav-row > .reader-nav-toggle {
  transform: rotate(90deg);
}

.reader-nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  min-width: 0;
  padding: 5px 8px;
  color: var(--reader-text);
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
  word-break: break-word;
}

.reader-nav-link:hover {
  background: var(--reader-sidebar-hover);
  text-decoration: none;
}

.reader-nav-link.active {
  background: var(--reader-sidebar-active-bg);
  color: var(--reader-sidebar-active-text);
  font-weight: 500;
}

.reader-nav-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  color: var(--reader-accent);
}

.reader-nav-link.active .reader-nav-icon {
  color: var(--reader-sidebar-active-text);
}

.reader-nav-emoji {
  flex-shrink: 0;
  font-size: 14px;
  width: 20px;
  text-align: center;
}

.reader-nav-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --- Graph link at bottom of nav ----------------------------- */
.reader-nav-graph-link {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--reader-border);
}

.reader-nav-graph-link .reader-nav-link {
  font-size: 12.5px;
  color: var(--reader-text-muted);
}

.reader-nav-graph-link .reader-nav-link:hover {
  color: var(--reader-text);
}

/* --- Page title icon ---------------------------------------- */
.reader-page-icon {
  display: inline-flex;
  vertical-align: middle;
  margin-right: 6px;
  color: var(--reader-accent);
}

/* --- Collapsible subtrees ----------------------------------- */
.reader-nav-subtree {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.25s ease;
}

.reader-nav-subtree.open {
  max-height: 2000px;
  transition: max-height 0.4s ease;
}

/* --- Main Content ------------------------------------------- */
.reader-main {
  flex: 1;
  margin-left: var(--reader-sidebar-w);
  min-width: 0;
}

.reader-content {
  max-width: var(--reader-content-max);
  margin: 0 auto;
  padding: 40px 32px 80px;
}

/* --- Right TOC column --------------------------------------- */
.reader-toc {
  position: fixed;
  top: var(--reader-header-h);
  right: 0;
  bottom: 0;
  width: var(--reader-toc-w);
  padding: 32px 16px 32px 0;
  overflow-y: auto;
  display: none;
}

.reader-toc-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--reader-text-faint);
  margin: 0 0 12px 12px;
}

.reader-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.reader-toc-item {
  margin: 0;
}

.reader-toc-link {
  display: block;
  padding: 3px 12px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--reader-text-faint);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.reader-toc-link:hover {
  color: var(--reader-text);
  text-decoration: none;
}

.reader-toc-link.active {
  color: var(--reader-accent);
  border-left-color: var(--reader-accent);
}

.reader-toc-link[data-depth="3"] {
  padding-left: 24px;
}

/* --- Breadcrumb --------------------------------------------- */
.reader-breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 16px;
  font-size: 13px;
  color: var(--reader-text-faint);
  flex-wrap: wrap;
}

.reader-breadcrumb a {
  color: var(--reader-text-secondary);
  text-decoration: none;
}

.reader-breadcrumb a:hover {
  color: var(--reader-accent);
  text-decoration: underline;
}

.reader-breadcrumb-sep {
  color: var(--reader-text-faint);
  font-size: 11px;
}

.reader-breadcrumb-current {
  color: var(--reader-text);
  font-weight: 500;
}

/* --- Content Typography ------------------------------------- */
.reader-page-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 24px 0;
  color: var(--reader-text);
  letter-spacing: -0.02em;
}

.reader-body {
  font-size: 16px;
  line-height: 1.7;
  color: #333;
}

.reader-body h1 { font-size: 28px; font-weight: 700; margin: 40px 0 16px; letter-spacing: -0.01em; position: relative; }
.reader-body h2 { font-size: 22px; font-weight: 600; margin: 36px 0 12px; letter-spacing: -0.01em; position: relative; }
.reader-body h3 { font-size: 18px; font-weight: 600; margin: 28px 0 10px; position: relative; }
.reader-body h4 { font-size: 16px; font-weight: 600; margin: 24px 0 8px; position: relative; }

.reader-body p { margin: 0 0 16px; }
.reader-body img { max-width: 100%; height: auto; border-radius: var(--reader-radius); }

.reader-body ul,
.reader-body ol {
  margin: 0 0 16px;
  padding-left: 24px;
}

.reader-body li { margin-bottom: 4px; }

.reader-body blockquote {
  margin: 0 0 16px;
  padding: 12px 20px;
  border-left: 3px solid var(--reader-accent);
  background: var(--reader-bg-alt);
  color: var(--reader-text-secondary);
  border-radius: 0 var(--reader-radius) var(--reader-radius) 0;
}

.reader-body pre {
  margin: 0 0 16px;
  padding: 16px;
  background: #1e1e2e;
  color: #cdd6f4;
  border-radius: var(--reader-radius);
  overflow-x: auto;
  font-family: var(--reader-font-mono);
  font-size: 13px;
  line-height: 1.6;
}

.reader-body code {
  font-family: var(--reader-font-mono);
  font-size: 0.9em;
  background: var(--reader-bg-alt);
  padding: 2px 6px;
  border-radius: 4px;
  color: #c7254e;
}

.reader-body pre code {
  background: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

.reader-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 16px;
  font-size: 14px;
}

.reader-body th,
.reader-body td {
  padding: 10px 12px;
  border: 1px solid var(--reader-border);
  text-align: left;
}

.reader-body th {
  background: var(--reader-bg-alt);
  font-weight: 600;
}

.reader-body hr {
  border: none;
  border-top: 1px solid var(--reader-border);
  margin: 32px 0;
}

/* --- Anchor links on headings ------------------------------- */
.reader-anchor {
  display: inline;
  margin-left: 8px;
  color: var(--reader-text-faint);
  text-decoration: none;
  font-weight: 400;
  opacity: 0;
  transition: opacity 0.15s;
  font-size: 0.85em;
}

.reader-body h1:hover .reader-anchor,
.reader-body h2:hover .reader-anchor,
.reader-body h3:hover .reader-anchor,
.reader-body h4:hover .reader-anchor {
  opacity: 1;
}

.reader-anchor:hover {
  color: var(--reader-accent);
  text-decoration: none;
}

/* --- Copy button on code blocks ----------------------------- */
.reader-pre-wrapper {
  position: relative;
  margin: 0 0 16px;
}

.reader-pre-wrapper pre {
  margin: 0;
}

.reader-copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 4px 10px;
  font-size: 11px;
  font-family: var(--reader-font);
  font-weight: 500;
  color: #a1a1aa;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 4px;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s, background 0.15s;
  z-index: 1;
}

.reader-pre-wrapper:hover .reader-copy-btn {
  opacity: 1;
}

.reader-copy-btn:hover {
  background: rgba(255, 255, 255, 0.16);
  color: #e5e5e5;
}

/* --- Next/Prev Page Navigation ------------------------------ */
.reader-page-nav {
  display: flex;
  align-items: stretch;
  gap: 16px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--reader-border);
}

.reader-page-nav-link {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 16px;
  border: 1px solid var(--reader-border);
  border-radius: var(--reader-radius);
  text-decoration: none;
  transition: border-color 0.15s, background 0.15s;
}

.reader-page-nav-link:hover {
  border-color: var(--reader-accent);
  background: rgba(37, 99, 235, 0.03);
  text-decoration: none;
}

.reader-page-nav-link--next {
  text-align: right;
  margin-left: auto;
}

.reader-page-nav-label {
  font-size: 12px;
  color: var(--reader-text-faint);
  font-weight: 500;
}

.reader-page-nav-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--reader-accent);
}

/* Legacy next-page link */
.reader-next-page {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--reader-border);
}

.reader-next-page a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--reader-accent);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: var(--reader-radius);
  transition: background 0.15s;
}

.reader-next-page a:hover {
  background: rgba(37, 99, 235, 0.06);
  text-decoration: none;
}

.reader-next-page-label {
  color: var(--reader-text-faint);
  font-size: 13px;
  font-weight: 400;
  margin-right: 2px;
}

/* --- Search Header Button ----------------------------------- */
.reader-header-search {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--reader-radius);
  color: var(--reader-text-secondary);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.reader-header-search:hover {
  background: var(--reader-bg-alt);
  color: var(--reader-text);
}

/* --- Search Form -------------------------------------------- */
.reader-search-form {
  margin-bottom: 24px;
}

.reader-search-input-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--reader-border);
  border-radius: var(--reader-radius);
  padding: 0 12px;
  background: var(--reader-bg);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.reader-search-input-wrap:focus-within {
  border-color: var(--reader-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.reader-search-form-icon {
  flex-shrink: 0;
  color: var(--reader-text-faint);
}

.reader-search-input-full {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  color: var(--reader-text);
  font-size: 15px;
  padding: 10px 0;
  font-family: inherit;
}

.reader-search-input-full::placeholder {
  color: var(--reader-text-faint);
}

.reader-search-submit {
  flex-shrink: 0;
  border: none;
  background: var(--reader-accent);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: calc(var(--reader-radius) - 2px);
  cursor: pointer;
  transition: opacity 0.15s;
  font-family: inherit;
}

.reader-search-submit:hover {
  opacity: 0.85;
}

.reader-search-count {
  font-size: 13px;
  color: var(--reader-text-faint);
  margin: 0 0 16px;
}

.reader-search-hint {
  font-size: 14px;
  color: var(--reader-text-secondary);
  margin-top: 8px;
}

.reader-search-hint kbd {
  display: inline-block;
  font-family: inherit;
  font-size: 12px;
  padding: 1px 5px;
  border: 1px solid var(--reader-border);
  border-radius: 4px;
  background: var(--reader-bg-alt);
}

/* --- Search Results ----------------------------------------- */
.reader-search-results {
  list-style: none;
  margin: 0;
  padding: 0;
}

.reader-search-result {
  border-bottom: 1px solid var(--reader-border);
  padding: 16px 0;
}

.reader-search-result:last-child {
  border-bottom: none;
}

.reader-search-result a {
  text-decoration: none;
}

.reader-search-result-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--reader-accent);
  margin: 0 0 4px;
}

.reader-search-result-title:hover {
  text-decoration: underline;
}

.reader-search-result-snippet {
  font-size: 14px;
  color: var(--reader-text-secondary);
  line-height: 1.5;
  margin: 0;
}

.reader-search-result-snippet mark {
  background: rgba(37, 99, 235, 0.15);
  color: inherit;
  padding: 1px 2px;
  border-radius: 2px;
}

.reader-search-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--reader-text-secondary);
}

/* --- Empty state -------------------------------------------- */
.reader-empty {
  text-align: center;
  padding: 80px 20px;
  color: var(--reader-text-secondary);
}

.reader-empty-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: var(--reader-bg-alt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.reader-empty-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--reader-text);
  margin: 0 0 8px;
}

.reader-empty-text {
  font-size: 15px;
  margin: 0;
}

/* --- Footer ------------------------------------------------- */
.reader-footer {
  padding: 24px 32px;
  text-align: center;
  color: var(--reader-text-faint);
  font-size: 13px;
  border-top: 1px solid var(--reader-border);
}

.reader-footer a { color: var(--reader-text-secondary); }
.reader-footer a:hover { color: var(--reader-accent); }

/* --- Auth / Login Card -------------------------------------- */
.reader-auth-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--reader-header-h) - 80px);
  padding: 40px 20px;
}

.reader-auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--reader-bg);
  border: 1px solid var(--reader-border);
  border-radius: 12px;
  padding: 40px 32px;
  box-shadow: var(--reader-shadow);
}

.reader-auth-title {
  font-size: 22px;
  font-weight: 700;
  text-align: center;
  margin: 0 0 6px;
  color: var(--reader-text);
}

.reader-auth-subtitle {
  text-align: center;
  font-size: 14px;
  color: var(--reader-text-secondary);
  margin: 0 0 28px;
}

.reader-form-group {
  margin-bottom: 20px;
}

.reader-form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--reader-text);
}

.reader-form-control {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  font-family: var(--reader-font);
  border: 1px solid var(--reader-border);
  border-radius: var(--reader-radius);
  background: var(--reader-bg);
  color: var(--reader-text);
  transition: border-color 0.15s;
  outline: none;
}

.reader-form-control:focus {
  border-color: var(--reader-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.reader-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--reader-font);
  border: none;
  border-radius: var(--reader-radius);
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s;
  text-decoration: none;
}

.reader-btn-primary {
  width: 100%;
  background: var(--reader-accent);
  color: #fff;
}

.reader-btn-primary:hover {
  background: var(--reader-accent-hover);
  text-decoration: none;
}

/* --- Alert -------------------------------------------------- */
.reader-alert {
  padding: 12px 16px;
  border-radius: var(--reader-radius);
  font-size: 14px;
  margin-bottom: 20px;
}

.reader-alert-success {
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.reader-alert-error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.reader-alert-info {
  background: #eff6ff;
  color: #1e40af;
  border: 1px solid #bfdbfe;
}

/* --- Responsive --------------------------------------------- */
@media (min-width: 1280px) {
  .reader-toc { display: block; }
  .reader-main { margin-right: var(--reader-toc-w); }
}

@media (max-width: 1024px) {
  .reader-toc { display: none !important; }
}

@media (max-width: 768px) {
  .reader-hamburger { display: block; }

  .reader-sidebar {
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    z-index: 110;
    background: var(--reader-bg);
  }

  .reader-sidebar.open {
    transform: translateX(0);
  }

  .reader-sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    top: var(--reader-header-h);
    background: rgba(0, 0, 0, 0.3);
    z-index: 105;
  }

  .reader-sidebar-backdrop.open { display: block; }

  .reader-main {
    margin-left: 0;
  }

  .reader-content {
    padding: 24px 16px 60px;
  }

  .reader-page-title { font-size: 26px; }

  .reader-auth-card { padding: 28px 20px; }

  .reader-page-nav {
    flex-direction: column;
  }

  .reader-page-nav-link--next {
    text-align: left;
  }
}

/* --- Print Stylesheet --------------------------------------- */
@media print {
  .reader-header,
  .reader-sidebar,
  .reader-sidebar-backdrop,
  .reader-hamburger,
  .reader-toc,
  .reader-next-page,
  .reader-page-nav,
  .reader-footer,
  .reader-nav-search,
  .reader-copy-btn,
  .reader-anchor,
  .reader-theme-toggle,
  .reader-header-actions,
  .reader-lang-switcher,
  .reader-breadcrumb {
    display: none !important;
  }

  .reader-shell {
    display: block;
    padding-top: 0;
  }

  .reader-main {
    margin-left: 0 !important;
    margin-right: 0 !important;
  }

  .reader-content {
    max-width: 100%;
    padding: 0;
  }

  body {
    background: #fff;
    color: #000;
  }

  .reader-body pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    border: 1px solid #ccc;
    background: #f5f5f5;
    color: #333;
  }
}