/* ─────────────────────────────────────────────────────────────
   TunnelMesh Docs — Style Sheet
   Aesthetic: futuristic sci-fi matching tunnelmesh.dev
   ───────────────────────────────────────────────────────────── */

/* ── Design Tokens ── */
:root {
  --nav-h: 56px;
  --sidebar-w: 262px;
  --toc-w: 210px;
  --content-max: 780px;
  --radius: 3px;
  --transition: 0.18s ease;
}

/* ── Dark Theme (default) ── */
[data-theme="dark"] {
  --bg:               #080c18;
  --bg-nav:           rgba(8, 12, 24, 0.88);
  --bg-sidebar:       #050810;
  --bg-surface:       #0c1220;
  --bg-card:          rgba(255, 255, 255, 0.035);
  --bg-code:          #0b1422;
  --bg-code-block:    #0a1018;
  --bg-hljs:          #0d1520;

  --accent:           #00d4b4;
  --accent-dim:       rgba(0, 212, 180, 0.1);
  --accent-border:    rgba(0, 212, 180, 0.28);
  --accent-glow:      rgba(0, 212, 180, 0.15);
  --accent-text:      #00d4b4;

  --text:             #e8eaf0;
  --text-muted:       rgba(232, 234, 240, 0.52);
  --text-faint:       rgba(232, 234, 240, 0.25);
  --heading:          #f0f2f8;
  --link:             #00d4b4;
  --link-hover:       #33dfc3;

  --border:           rgba(255, 255, 255, 0.07);
  --border-strong:    rgba(255, 255, 255, 0.12);
  --border-accent:    rgba(0, 212, 180, 0.3);

  --code-inline-bg:   rgba(255, 255, 255, 0.07);
  --code-inline-text: #c8ccd6;
  --blockquote-bar:   rgba(0, 212, 180, 0.45);
  --table-head-bg:    rgba(255, 255, 255, 0.04);
  --table-row-alt:    rgba(255, 255, 255, 0.015);

  --scrollbar-track:  rgba(255, 255, 255, 0.03);
  --scrollbar-thumb:  rgba(255, 255, 255, 0.1);

  --grid-line:        rgba(0, 212, 180, 0.013);

  /* Callout colors */
  --callout-note-color:      #00d4b4;
  --callout-note-bg:         rgba(0, 212, 180, 0.07);
  --callout-note-border:     rgba(0, 212, 180, 0.35);

  --callout-important-color: #a78bfa;
  --callout-important-bg:    rgba(167, 139, 250, 0.08);
  --callout-important-border: rgba(167, 139, 250, 0.4);

  --callout-warning-color:   #f0a500;
  --callout-warning-bg:      rgba(240, 165, 0, 0.08);
  --callout-warning-border:  rgba(240, 165, 0, 0.4);

  --callout-tip-color:       #3fb950;
  --callout-tip-bg:          rgba(63, 185, 80, 0.07);
  --callout-tip-border:      rgba(63, 185, 80, 0.38);

  --callout-caution-color:   #f85149;
  --callout-caution-bg:      rgba(248, 81, 73, 0.08);
  --callout-caution-border:  rgba(248, 81, 73, 0.38);
}

/* ── Light Theme ── */
[data-theme="light"] {
  --bg:               #f0f4f9;
  --bg-nav:           rgba(240, 244, 249, 0.92);
  --bg-sidebar:       #e8edf5;
  --bg-surface:       #ffffff;
  --bg-card:          rgba(0, 0, 0, 0.025);
  --bg-code:          rgba(0, 0, 0, 0.04);
  --bg-code-block:    #f4f6fa;
  --bg-hljs:          #f4f6fa;

  --accent:           #009d8a;
  --accent-dim:       rgba(0, 157, 138, 0.1);
  --accent-border:    rgba(0, 157, 138, 0.3);
  --accent-glow:      rgba(0, 157, 138, 0.1);
  --accent-text:      #007d6c;

  --text:             #1a2035;
  --text-muted:       rgba(26, 32, 53, 0.56);
  --text-faint:       rgba(26, 32, 53, 0.28);
  --heading:          #0a0f1e;
  --link:             #009d8a;
  --link-hover:       #007d6c;

  --border:           rgba(0, 0, 0, 0.08);
  --border-strong:    rgba(0, 0, 0, 0.14);
  --border-accent:    rgba(0, 157, 138, 0.3);

  --code-inline-bg:   rgba(0, 0, 0, 0.06);
  --code-inline-text: #2e3650;
  --blockquote-bar:   rgba(0, 157, 138, 0.5);
  --table-head-bg:    rgba(0, 0, 0, 0.04);
  --table-row-alt:    rgba(0, 0, 0, 0.018);

  --scrollbar-track:  rgba(0, 0, 0, 0.04);
  --scrollbar-thumb:  rgba(0, 0, 0, 0.12);

  --grid-line:        rgba(0, 100, 90, 0.025);

  /* Callout colors */
  --callout-note-color:      #007a6c;
  --callout-note-bg:         rgba(0, 157, 138, 0.07);
  --callout-note-border:     rgba(0, 157, 138, 0.35);

  --callout-important-color: #7c3aed;
  --callout-important-bg:    rgba(124, 58, 237, 0.07);
  --callout-important-border: rgba(124, 58, 237, 0.35);

  --callout-warning-color:   #b45309;
  --callout-warning-bg:      rgba(180, 83, 9, 0.07);
  --callout-warning-border:  rgba(180, 83, 9, 0.35);

  --callout-tip-color:       #166534;
  --callout-tip-bg:          rgba(22, 101, 52, 0.07);
  --callout-tip-border:      rgba(22, 101, 52, 0.35);

  --callout-caution-color:   #b91c1c;
  --callout-caution-bg:      rgba(185, 28, 28, 0.07);
  --callout-caution-border:  rgba(185, 28, 28, 0.35);
}

/* ── Reset ── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* ── Subtle grid background ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-border); }

/* ─────────────────────────────────────────────────────────────
   Navigation
   ───────────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 200;
  background: var(--bg-nav);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

/* Animated accent line under nav */
.nav::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.35;
}

.nav-inner {
  height: 100%;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text);
  flex-shrink: 0;
}

.logo-img {
  display: block;
  flex-shrink: 0;
  border-radius: 4px;
}

.logo-word {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.logo-tag {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-border);
  padding: 1px 5px;
  border-radius: 2px;
  opacity: 0.85;
}

/* Center nav tabs */
.nav-center {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
}

.nav-tab {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.9rem;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
  position: relative;
}

.nav-tab:hover {
  color: var(--text);
  background: var(--bg-card);
}

.nav-tab.active {
  color: var(--accent);
  background: var(--accent-dim);
}

.nav-tab.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 20%;
  right: 20%;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

/* Right nav actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.nav-icon-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius);
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition), background var(--transition);
}

.nav-icon-link:hover {
  color: var(--text);
  background: var(--bg-card);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: none;
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
}

.theme-toggle:hover {
  color: var(--accent);
  background: var(--accent-dim);
}

/* Sun/moon icon visibility */
[data-theme="dark"]  .icon-sun  { display: block; }
[data-theme="dark"]  .icon-moon { display: none; }
[data-theme="light"] .icon-sun  { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* Hamburger (mobile only) */
.hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius);
  transition: color var(--transition);
  flex-shrink: 0;
}

.hamburger:hover { color: var(--text); }

/* ─────────────────────────────────────────────────────────────
   Layout
   ───────────────────────────────────────────────────────────── */
.app-wrap {
  position: relative;
  padding-top: var(--nav-h);
  min-height: 100vh;
}

.view {
  display: flex;
  min-height: calc(100vh - var(--nav-h));
}

.view.hidden {
  display: none;
}

/* ─────────────────────────────────────────────────────────────
   Sidebar
   ───────────────────────────────────────────────────────────── */
.sidebar {
  position: fixed;
  top: var(--nav-h);
  left: 0;
  bottom: 0;
  width: var(--sidebar-w);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  overflow: hidden;
  z-index: 100;
  display: flex;
  flex-direction: column;
}

.sidebar-scroll {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 1.25rem 0 2rem;
}

.sidebar-section-label {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 0 1.2rem 0.75rem;
}

/* Nav sections */
.sidebar-nav { list-style: none; }

.sidebar-section {
  margin-bottom: 0.25rem;
}

/* Section heading (non-clickable) */
.sidebar-section-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.2rem 0.35rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: default;
  user-select: none;
  margin-top: 0.5rem;
}

.sidebar-section-title svg {
  color: var(--accent);
  opacity: 0.7;
  flex-shrink: 0;
}

/* Section doc links */
.sidebar-docs { list-style: none; }

.sidebar-doc-link {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.38rem 1.2rem 0.38rem 2.1rem;
  font-size: 0.84rem;
  font-weight: 400;
  color: var(--text-muted);
  text-decoration: none;
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-doc-link:hover {
  color: var(--text);
  background: var(--bg-card);
}

.sidebar-doc-link.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--accent-dim);
  font-weight: 500;
}

/* Separator between section groups */
.sidebar-sep {
  margin: 0.6rem 1.2rem;
  border: none;
  border-top: 1px solid var(--border);
}

/* Sidebar overlay (mobile) */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
}

/* ─────────────────────────────────────────────────────────────
   Docs Main
   ───────────────────────────────────────────────────────────── */
.docs-main {
  flex: 1;
  margin-left: var(--sidebar-w);
  margin-right: var(--toc-w);
  min-width: 0;
  display: flex;
  justify-content: center;
}

.docs-content {
  width: 100%;
  max-width: var(--content-max);
  padding: 2.5rem 2rem 4rem;
}

/* Loading state */
.doc-loading {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 3rem 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.loading-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ─────────────────────────────────────────────────────────────
   Markdown Article Styles
   ───────────────────────────────────────────────────────────── */
.doc-article {
  line-height: 1.85;
  color: var(--text);
  font-size: 1.05rem;
}

/* Headings */
.doc-article h1,
.doc-article h2,
.doc-article h3,
.doc-article h4,
.doc-article h5 {
  color: var(--heading);
  font-weight: 700;
  line-height: 1.3;
  margin-top: 3rem;
  margin-bottom: 1rem;
  scroll-margin-top: calc(var(--nav-h) + 1.5rem);
}

.doc-article h1 {
  font-size: 2rem;
  margin-top: 0;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.doc-article h2 {
  font-size: 1.45rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px solid var(--border);
  position: relative;
  padding-left: 0.9rem;
}

.doc-article h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.15em;
  bottom: 0.15em;
  width: 3px;
  background: var(--accent);
  border-radius: 2px;
}

.doc-article h3 {
  font-size: 1.2rem;
  color: var(--heading);
  margin-top: 2.25rem;
}

.doc-article h4 {
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-top: 1.75rem;
}

/* Heading anchor links */
.doc-article .heading-anchor {
  display: inline-flex;
  align-items: center;
  margin-left: 0.5rem;
  color: var(--text-faint);
  text-decoration: none;
  opacity: 0;
  transition: opacity var(--transition), color var(--transition);
  vertical-align: middle;
}

.doc-article h1:hover .heading-anchor,
.doc-article h2:hover .heading-anchor,
.doc-article h3:hover .heading-anchor,
.doc-article h4:hover .heading-anchor {
  opacity: 1;
}

.heading-anchor:hover { color: var(--accent); }

/* Paragraphs */
.doc-article p {
  margin-bottom: 1.35rem;
  color: var(--text);
}

/* Links */
.doc-article a {
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-border);
  transition: color var(--transition), border-color var(--transition);
}

.doc-article a:hover {
  color: var(--link-hover);
  border-bottom-color: var(--accent);
}

/* Lists */
.doc-article ul,
.doc-article ol {
  margin: 0.6rem 0 1.35rem 1.6rem;
}

.doc-article li {
  margin-bottom: 0.45rem;
  line-height: 1.75;
}

.doc-article li > ul,
.doc-article li > ol {
  margin-top: 0.35rem;
  margin-bottom: 0.25rem;
}

/* Inline code */
.doc-article code:not(pre code) {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.82rem;
  background: var(--code-inline-bg);
  color: var(--code-inline-text);
  padding: 0.15em 0.45em;
  border-radius: 2px;
  border: 1px solid var(--border);
}

/* ── Callout admonitions ── */
.callout {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid;
  border-left-width: 4px;
}

.callout-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.callout-body p:last-child { margin-bottom: 0; }
.callout-body > *:last-child { margin-bottom: 0; }

/* Per-type colors */
.callout-note {
  background: var(--callout-note-bg);
  border-color: var(--callout-note-border);
  border-left-color: var(--callout-note-color);
}
.callout-note .callout-header { color: var(--callout-note-color); }

.callout-important {
  background: var(--callout-important-bg);
  border-color: var(--callout-important-border);
  border-left-color: var(--callout-important-color);
}
.callout-important .callout-header { color: var(--callout-important-color); }

.callout-warning {
  background: var(--callout-warning-bg);
  border-color: var(--callout-warning-border);
  border-left-color: var(--callout-warning-color);
}
.callout-warning .callout-header { color: var(--callout-warning-color); }

.callout-tip {
  background: var(--callout-tip-bg);
  border-color: var(--callout-tip-border);
  border-left-color: var(--callout-tip-color);
}
.callout-tip .callout-header { color: var(--callout-tip-color); }

.callout-caution {
  background: var(--callout-caution-bg);
  border-color: var(--callout-caution-border);
  border-left-color: var(--callout-caution-color);
}
.callout-caution .callout-header { color: var(--callout-caution-color); }

/* Code blocks */
.doc-article pre {
  margin: 1.25rem 0;
  border-radius: var(--radius);
  overflow-x: auto;
  overflow-y: hidden;
  border: 1px solid var(--border);
  position: relative;
}

.doc-article pre code.hljs {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.82rem;
  background: var(--bg-code-block) !important;
  padding: 2.4rem 1.25rem 1.1rem !important;
  line-height: 1.6;
}

/* Code language label */
.doc-article pre .code-lang,
.blog-article-content pre .code-lang {
  position: absolute;
  top: 0;
  right: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  background: var(--border);
  padding: 0.2rem 0.55rem;
  border-radius: 0 var(--radius) 0 var(--radius);
  pointer-events: none;
}

/* Copy button */
.doc-article pre .copy-btn,
.blog-article-content pre .copy-btn {
  position: absolute;
  top: 0.45rem;
  left: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.55rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  color: var(--text-faint);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 2px;
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--transition), color var(--transition);
}

.doc-article pre:hover .copy-btn,
.blog-article-content pre:hover .copy-btn {
  opacity: 1;
}

.copy-btn:hover { color: var(--accent) !important; border-color: var(--accent-border) !important; }
.copy-btn.copied { color: var(--accent) !important; }

/* Blockquotes */
.doc-article blockquote {
  margin: 1rem 0;
  padding: 0.75rem 1rem 0.75rem 1.1rem;
  border-left: 3px solid var(--blockquote-bar);
  background: var(--accent-dim);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--text-muted);
  font-style: italic;
}

.doc-article blockquote p { margin-bottom: 0; color: var(--text-muted); }

/* Tables */
.doc-article table {
  width: 100%;
  margin: 1.25rem 0;
  border-collapse: collapse;
  font-size: 0.88rem;
  overflow-x: auto;
  display: block;
}

.doc-article th,
.doc-article td {
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--border);
  text-align: left;
}

.doc-article th {
  background: var(--table-head-bg);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.doc-article tr:nth-child(even) td {
  background: var(--table-row-alt);
}

.doc-article tr:hover td {
  background: var(--accent-dim);
}

/* Horizontal rule */
.doc-article hr {
  margin: 2rem 0;
  border: none;
  border-top: 1px solid var(--border);
}

/* Images */
.doc-article img,
.blog-article-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: block;
  margin: 1.5rem auto;
  cursor: zoom-in;
}

/* Figure wrapper + caption (rendered by marked for ![alt](src "title") */
.doc-article figure,
.blog-article-content figure {
  margin: 1.5rem 0;
  text-align: center;
}

.doc-article figure img,
.blog-article-content figure img {
  margin: 0 auto 0.6rem;
}

.doc-article figcaption,
.blog-article-content figcaption {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
}

/* Lightbox overlay */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
  backdrop-filter: blur(4px);
  animation: lb-in 0.15s ease;
}

@keyframes lb-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.lightbox img {
  max-width: 92vw;
  max-height: 88vh;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.7);
  cursor: zoom-out;
  margin: 0;
}

/* Strong / em */
.doc-article strong { color: var(--heading); font-weight: 700; }
.doc-article em { color: var(--text-muted); }

/* ─────────────────────────────────────────────────────────────
   Doc Pagination
   ───────────────────────────────────────────────────────────── */
.doc-pagination {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 2rem;
  margin-top: 2rem;
  border-top: 1px solid var(--border);
}

.doc-pagination a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  max-width: 48%;
}

.doc-pagination a:hover {
  color: var(--accent);
  border-color: var(--accent-border);
  background: var(--accent-dim);
}

.doc-pagination .pag-next {
  margin-left: auto;
  text-align: right;
  flex-direction: row-reverse;
}

.doc-pagination .pag-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  display: block;
  margin-bottom: 0.1rem;
}

.doc-pagination .pag-title {
  color: var(--text);
  font-weight: 500;
}

/* ─────────────────────────────────────────────────────────────
   Page TOC (right)
   ───────────────────────────────────────────────────────────── */
.page-toc {
  position: fixed;
  top: var(--nav-h);
  right: 0;
  bottom: 0;
  width: var(--toc-w);
  padding: 1.75rem 1rem 2rem 0.5rem;
  overflow-y: auto;
  border-left: 1px solid var(--border);
  background: var(--bg-sidebar);
}

.page-toc-label {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.75rem;
  padding-left: 0.5rem;
}

.page-toc-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
}

.toc-entry {
  display: block;
  padding: 0.28rem 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 2px;
  border-left: 2px solid transparent;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
  line-height: 1.4;
}

.toc-entry:hover {
  color: var(--text);
  background: var(--bg-card);
}

.toc-entry.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--accent-dim);
}

.toc-entry.toc-h3 {
  padding-left: 1.1rem;
  font-size: 0.76rem;
}

.toc-entry.toc-h4 {
  padding-left: 1.8rem;
  font-size: 0.73rem;
}

/* ─────────────────────────────────────────────────────────────
   Blog View
   ───────────────────────────────────────────────────────────── */
.blog-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 3rem 1.5rem 5rem;
}

.blog-index {
  width: 100%;
  max-width: 820px;
}

.blog-header {
  margin-bottom: 2.5rem;
}

.blog-header h1 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--heading);
  margin-bottom: 0.5rem;
}

.blog-header p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.blog-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
  text-decoration: none;
  display: block;
  position: relative;
  overflow: hidden;
}

.blog-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.blog-card:hover {
  border-color: var(--accent-border);
  background: var(--accent-dim);
  transform: translateY(-1px);
}

.blog-card:hover::before {
  opacity: 1;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
}

.blog-card-date {
  font-size: 0.78rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
  opacity: 0.8;
}

.blog-card-author {
  font-size: 0.78rem;
  color: var(--text-faint);
}

.blog-card-author::before {
  content: '·';
  margin-right: 0.75rem;
}

.blog-card h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--heading);
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.blog-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

.blog-card-read {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  opacity: 0.8;
}

.blog-empty {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
}

.blog-empty h2 {
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.blog-empty code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.15em 0.4em;
  border-radius: 2px;
}

/* Blog article view */
.blog-article-wrap {
  width: 100%;
  max-width: 820px;
}

.draft-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1rem;
  padding: 0.3rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--callout-warning-color);
  background: var(--callout-warning-bg);
  border: 1px solid var(--callout-warning-border);
  border-radius: var(--radius);
}

.draft-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.7;
}

.blog-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 2rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  cursor: pointer;
  transition: color var(--transition);
}

.blog-back:hover { color: var(--accent); }

.blog-article-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.blog-article-meta .meta-date {
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
  opacity: 0.85;
}

.blog-article-content {
  line-height: 1.75;
  color: var(--text);
  font-size: 0.96rem;
}

/* Blog article reuses doc-article styles */
.blog-article-content h1,
.blog-article-content h2,
.blog-article-content h3,
.blog-article-content h4 { color: var(--heading); margin-top: 2rem; margin-bottom: 0.75rem; }
.blog-article-content h1 { font-size: 1.85rem; margin-top: 0; border-bottom: 1px solid var(--border); padding-bottom: 0.6rem; }
.blog-article-content h2 { font-size: 1.3rem; border-bottom: 1px solid var(--border); padding-bottom: 0.35rem; padding-left: 0.85rem; position: relative; }
.blog-article-content h2::before { content: ''; position: absolute; left: 0; top: 0.15em; bottom: 0.15em; width: 3px; background: var(--accent); border-radius: 2px; }
.blog-article-content h3 { font-size: 1.05rem; }
.blog-article-content p { margin-bottom: 1rem; }
.blog-article-content a { color: var(--link); text-decoration: none; border-bottom: 1px solid var(--accent-border); transition: color var(--transition); }
.blog-article-content a:hover { color: var(--link-hover); }
.blog-article-content code:not(pre code) { font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; background: var(--code-inline-bg); color: var(--code-inline-text); padding: 0.15em 0.45em; border-radius: 2px; border: 1px solid var(--border); }
.blog-article-content pre { margin: 1.25rem 0; border-radius: var(--radius); overflow-x: auto; overflow-y: hidden; border: 1px solid var(--border); position: relative; }
.blog-article-content pre code.hljs { font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; background: var(--bg-code-block) !important; padding: 2.3rem 1.25rem 1rem !important; }
.blog-article-content ul, .blog-article-content ol { margin: 0.5rem 0 1rem 1.5rem; }
.blog-article-content li { margin-bottom: 0.3rem; }
.blog-article-content blockquote { padding: 0.75rem 1rem 0.75rem 1.1rem; border-left: 3px solid var(--blockquote-bar); background: var(--accent-dim); color: var(--text-muted); border-radius: 0 var(--radius) var(--radius) 0; margin: 1rem 0; }
.blog-article-content blockquote p { margin: 0; }
.blog-article-content strong { color: var(--heading); }

/* ─────────────────────────────────────────────────────────────
   Responsive
   ───────────────────────────────────────────────────────────── */

/* Hide right TOC on medium screens */
@media (max-width: 1200px) {
  .page-toc { display: none; }
  .docs-main { margin-right: 0; }
}

/* Collapsible sidebar on small screens */
@media (max-width: 900px) {
  .hamburger { display: flex; }
  .nav-center { display: none; }

  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.22s ease;
    z-index: 150;
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: 8px 0 32px rgba(0,0,0,0.4);
  }

  .sidebar-overlay.open {
    display: block;
  }

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

@media (max-width: 600px) {
  .logo-word { display: none; }
  .logo-tag { display: none; }
  .nav-actions .nav-icon-link:first-child { display: none; }
  .docs-content { padding: 1.5rem 1rem 3rem; }
  .blog-main { padding: 1.5rem 1rem 3rem; }
  .doc-pagination { flex-direction: column; }
  .doc-pagination a { max-width: 100%; }
}