/* =========================================
   1. GLOBAL STYLES
   ========================================= */
/* =========================================
   1. THEME VARIABLES (Warm Light & Warm Dark)
   ========================================= */
:root {
  /* Global Settings */
  --font-serif: "Source Serif 4", "EB Garamond", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  --font-mono: "SF Mono", "Menlo", "Monaco", "Consolas", monospace;
  --spacing-unit: 2rem;
  --container-width: 720px;

  /* Light Theme */
  --light-bg: #faf9f6;
  --light-text: #404040;
  --light-heading: #222222;
  --light-meta: #737373;
  --light-accent: #a15c45;
  --light-border: #dcdcdc;
  --light-code-bg: #efefec;
  --light-link-line: #d0d0d0;

  /* Dark Theme */
  --dark-bg: #1f1e1d;
  --dark-text: #d4d4d4;
  --dark-heading: #f0f0f0;
  --dark-meta: #8a8a8a;
  --dark-accent: #ba765f;
  --dark-border: #333333;
  --dark-code-bg: #2b2a29;
  --dark-link-line: #444444;

  /* Default to Light */
  --bg-color: var(--light-bg);
  --text-color: var(--light-text);
  --text-heading: var(--light-heading);
  --text-meta: var(--light-meta);
  --accent-color: var(--light-accent);
  --border-color: var(--light-border);
  --code-bg: var(--light-code-bg);
  --link-decoration: var(--light-link-line);
}

/* System Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-color: var(--dark-bg);
    --text-color: var(--dark-text);
    --text-heading: var(--dark-heading);
    --text-meta: var(--dark-meta);
    --accent-color: var(--dark-accent);
    --border-color: var(--dark-border);
    --code-bg: var(--dark-code-bg);
    --link-decoration: var(--dark-link-line);
  }
}

/* Manual Overrides */
[data-theme="light"] {
  --bg-color: var(--light-bg);
  --text-color: var(--light-text);
  --text-heading: var(--light-heading);
  --text-meta: var(--light-meta);
  --accent-color: var(--light-accent);
  --border-color: var(--light-border);
  --code-bg: var(--light-code-bg);
  --link-decoration: var(--light-link-line);
}

[data-theme="dark"] {
  --bg-color: var(--dark-bg);
  --text-color: var(--dark-text);
  --text-heading: var(--dark-heading);
  --text-meta: var(--dark-meta);
  --accent-color: var(--dark-accent);
  --border-color: var(--dark-border);
  --code-bg: var(--dark-code-bg);
  --link-decoration: var(--dark-link-line);
}

/* =========================================
   2. BASE RESET & STYLES
   ========================================= */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.7;
  letter-spacing: -0.01em;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* =========================================
   3. LAYOUT
   ========================================= */
.layout {
  display: grid;
  grid-template-columns: 1fr;
  min-height: calc(100vh - 60px);
}

.layout[data-has-sidebars="true"] {
  grid-template-columns: 1fr;
}

@media (min-width: 1100px) {
  .layout[data-has-sidebars="true"] {
    grid-template-columns: 280px 1fr 220px;
    gap: 0;
  }
}

main {
  max-width: var(--container-width);
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

@media (min-width: 1100px) {
  .layout[data-has-sidebars="true"] main {
    max-width: none;
    padding: 2rem 3rem 4rem;
  }
}

/* =========================================
   4. TYPOGRAPHY
   ========================================= */
h1,
h2,
h3,
h4,
h5,
h6 {
  /* font-family: var(--font-serif); */
  color: var(--text-heading);
  font-weight: 500;
  line-height: 1.3;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 2rem;
  font-weight: 600;
  margin-top: 0;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.25rem;
}

h4 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-meta);
}

p {
  margin-top: 0;
  margin-bottom: var(--spacing-unit);
}

strong {
  font-weight: 600;
  color: var(--text-heading);
}

/* =========================================
   5. LINKS
   ========================================= */
a {
  color: var(--text-heading);
  text-decoration: none;
  border-bottom: 1px solid var(--link-decoration);
  transition: border-color 0.2s ease, color 0.2s ease;
}

a:hover {
  border-bottom-color: var(--accent-color);
  color: var(--accent-color);
}

/* =========================================
   6. LISTS
   ========================================= */
ul,
ol {
  padding-left: 1.5rem;
  margin-bottom: var(--spacing-unit);
}

li {
  margin-bottom: 0.5rem;
}

li::marker {
  color: var(--text-meta);
}

/* =========================================
   7. CODE
   ========================================= */
code {
  background-color: var(--code-bg);
  padding: 0.2em 0.4em;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--text-heading);
}

pre {
  background-color: var(--code-bg);
  color: var(--text-color);
  padding: 1.25rem;
  overflow-x: auto;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  margin-bottom: var(--spacing-unit);
  font-size: 0.875rem;
  line-height: 1.6;
}

pre code {
  background: transparent;
  padding: 0;
  font-size: inherit;
  color: inherit;
}

/* =========================================
   8. BLOCKQUOTES
   ========================================= */
blockquote {
  margin: var(--spacing-unit) 0;
  padding-left: 1.5rem;
  border-left: 3px solid var(--accent-color);
  color: var(--text-meta);
  font-style: italic;
}

blockquote p {
  margin-bottom: 0;
}

/* =========================================
   9. TABLES
   ========================================= */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--spacing-unit);
  font-size: 0.9rem;
}

th,
td {
  text-align: left;
  padding: 0.75rem 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

th {
  color: var(--text-meta);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* =========================================
   10. HORIZONTAL RULE
   ========================================= */
hr {
  border: 0;
  height: 1px;
  background: var(--border-color);
  margin: 3rem auto;
  width: 60%;
}

/* =========================================
   11. IMAGES
   ========================================= */
img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  display: block;
  margin: 1.5rem 0;
}

/* =========================================
   12. ARTICLE STYLES
   ========================================= */
.article-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.article-header h1 {
  margin-bottom: 0.75rem;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--text-meta);
  font-size: 0.875rem;
  margin: 0;
}

.article-tags {
  display: flex;
  gap: 0.5rem;
}

.tag {
  background: var(--code-bg);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--text-meta);
}

/* =========================================
   13. PAGE STYLES
   ========================================= */
.page-header {
  margin-bottom: 2rem;
}

.page-header h1 {
  margin-bottom: 0;
}

/* =========================================
   14. HOME PAGE
   ========================================= */
.home {
  max-width: 600px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
  text-align: center;
}

@media (min-width: 768px) {
  .home {
    padding: 8rem 1.5rem;
  }
}

.home h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.home .lead {
  font-size: 1.15rem;
  color: var(--text-meta);
  margin-bottom: 3rem;
}

.home-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

@media (min-width: 480px) {
  .home-links {
    flex-direction: row;
    justify-content: center;
  }
}

.home-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-heading);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.home-link:hover {
  border-color: var(--accent-color);
  background: var(--code-bg);
}

.home-link.primary {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: var(--light-bg);
}

.home-link.primary:hover {
  filter: brightness(1.1);
}

/* =========================================
   15. CAREER PAGE
   ========================================= */
.career-page {
  max-width: 800px;
  margin: 0 auto;
}

.career-header {
  margin-bottom: 3rem;
}

.career-header h1 {
  margin-bottom: 1rem;
}

.career-summary {
  font-size: 1.1rem;
  color: var(--text-color);
  margin-bottom: 1rem;
}

.career-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--accent-color);
  color: var(--light-bg);
}

.btn-primary:hover {
  filter: brightness(1.1);
  color: var(--light-bg);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-heading);
}

.btn-secondary:hover {
  border-color: var(--accent-color);
  background: var(--code-bg);
}

/* =========================================
   16. KNOWLEDGE BASE INDEX
   ========================================= */
.knowledge-index {
  max-width: 800px;
  margin: 0 auto;
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.topic-card {
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: all 0.2s ease;
}

.topic-card:hover {
  border-color: var(--accent-color);
  background: var(--code-bg);
}

.topic-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.topic-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-meta);
}

.topic-card a {
  border: none;
}

.topic-card a::after {
  content: "";
  position: absolute;
  inset: 0;
}

.topic-card {
  position: relative;
}

/* =========================================
   17. HEADER ANCHORS
   ========================================= */
.header-anchor {
  margin-left: 0.5rem;
  color: var(--text-meta);
  opacity: 0;
  border: none;
  font-weight: 400;
  transition: opacity 0.2s ease;
}

h2:hover .header-anchor,
h3:hover .header-anchor,
h4:hover .header-anchor {
  opacity: 1;
}

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

/* =========================================
   18. UTILITIES
   ========================================= */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-meta {
  color: var(--text-meta);
}

.text-small {
  font-size: 0.875rem;
}

/* =========================================
   19. PAGEFIND OVERRIDES
   ========================================= */
.pagefind-ui {
  --pagefind-ui-scale: 0.9;
  --pagefind-ui-primary: var(--accent-color);
  --pagefind-ui-text: var(--text-color);
  --pagefind-ui-background: var(--bg-color);
  --pagefind-ui-border: var(--border-color);
  --pagefind-ui-tag: var(--code-bg);
  --pagefind-ui-border-width: 1px;
  --pagefind-ui-border-radius: 8px;
  --pagefind-ui-font: var(--font-sans);
}

/* =========================================
   2. COMPONENT STYLES
   ========================================= */



/* --- Component: breadcrumbs --- */
/* =========================================
   BREADCRUMBS
   ========================================= */
.breadcrumbs {
  margin-bottom: 2rem;
}

.breadcrumbs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.8rem;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-meta);
}

.breadcrumb-item:not(:last-child)::after {
  content: "/";
  color: var(--border-color);
}

.breadcrumb-item a {
  color: var(--text-meta);
  text-decoration: none;
  border: none;
  transition: color 0.2s ease;
}

.breadcrumb-item a:hover {
  color: var(--accent-color);
  filter: none;
}

.breadcrumb-item span {
  color: var(--text-color);
}

/* --- Component: callout --- */
/* =========================================
   CALLOUT BLOCKS
   ========================================= */
.callout {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  border-radius: 8px;
  border-left: 4px solid;
  background: var(--code-bg);
}

.callout p {
  margin: 0;
}

.callout-title {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

/* Note - Blue/Sage */
.callout-note {
  border-color: var(--accent-color);
}

.callout-note .callout-title {
  color: var(--accent-color);
}

/* Tip - Green */
.callout-tip {
  border-color: #6b9b7a;
}

.callout-tip .callout-title {
  color: #6b9b7a;
}

/* Warning - Amber */
.callout-warning {
  border-color: #c9a227;
}

.callout-warning .callout-title {
  color: #c9a227;
}

/* Info - Blue */
.callout-info {
  border-color: #6b8cad;
}

.callout-info .callout-title {
  color: #6b8cad;
}

/* --- Component: career-timeline --- */
/* =========================================
   CAREER TIMELINE
   ========================================= */
.career-section {
  margin-bottom: 4rem;
}

.career-section h2 {
  margin-bottom: 2rem;
}

/* Timeline */
.timeline-company {
  margin-bottom: 3rem;
}

.timeline-company-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.company-logo {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  object-fit: contain;
}

.company-logo-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--code-bg);
  color: var(--text-meta);
  font-size: 0.875rem;
  font-weight: 600;
}

.company-name {
  margin: 0;
  font-size: 1.25rem;
}

.timeline-roles {
  position: relative;
  padding-left: 2rem;
}

.timeline-roles::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.timeline-role {
  position: relative;
  padding-bottom: 2rem;
}

.timeline-role:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -2rem;
  top: 0.35rem;
  width: 16px;
  height: 16px;
  background: var(--bg-color);
  border: 2px solid var(--accent-color);
  border-radius: 50%;
}

.timeline-role:first-child .timeline-marker {
  background: var(--accent-color);
}

.role-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}

.role-title {
  margin: 0;
  font-size: 1rem;
  color: var(--text-heading);
}

.role-type {
  font-size: 0.75rem;
  color: var(--text-meta);
  background: var(--code-bg);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

.role-dates {
  font-size: 0.85rem;
  color: var(--text-meta);
  margin: 0.25rem 0 0.75rem;
}

.role-description {
  margin-bottom: 0.75rem;
}

.role-highlights {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-color);
}

.role-highlights li {
  margin-bottom: 0.25rem;
}

/* Education */
.education-item {
  margin-bottom: 1.5rem;
}

.education-item h3 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}

.education-meta {
  color: var(--text-meta);
  font-size: 0.875rem;
  margin: 0;
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.skill-group h4 {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  color: var(--text-heading);
  text-transform: none;
  letter-spacing: normal;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  background: var(--code-bg);
  color: var(--text-color);
  padding: 0.35rem 0.75rem;
  border-radius: 4px;
  font-size: 0.8rem;
}

/* Certifications */
.cert-list {
  list-style: none;
  padding: 0;
}

.cert-list li {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
}

.cert-meta {
  font-size: 0.85rem;
  color: var(--text-meta);
}

/* --- Component: footer --- */
/* =========================================
   FOOTER
   ========================================= */
.site-footer {
  margin-top: 4rem;
  padding: 3rem 1.5rem;
  padding-bottom: calc(3rem + 60px); /* Space for mobile controls */
  border-top: 1px solid var(--border-color);
  background: var(--bg-color);
}

@media (min-width: 768px) {
  .site-footer {
    padding-bottom: 3rem;
  }
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-copyright {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-meta);
}

.footer-social {
  display: flex;
  gap: 1rem;
}

.footer-social a {
  color: var(--text-meta);
  border: none;
  transition: color 0.2s ease;
}

.footer-social a:hover {
  color: var(--accent-color);
  filter: none;
}

.footer-meta {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-meta);
}

.footer-meta a {
  color: var(--text-meta);
  border-bottom-color: var(--border-color);
}

/* --- Component: mobile-controls --- */
/* =========================================
   MOBILE CONTROLS - Bottom Bar
   ========================================= */
.mobile-controls {
  display: flex;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-color);
  border-top: 1px solid var(--border-color);
  padding: 0.5rem;
  padding-bottom: calc(0.5rem + env(safe-area-inset-bottom));
  justify-content: space-around;
  z-index: 100;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.mobile-controls.is-visible {
  transform: translateY(0);
}

@media (min-width: 768px) {
  .mobile-controls {
    display: none;
  }
}

.mobile-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 1rem;
  background: transparent;
  border: none;
  color: var(--text-meta);
  cursor: pointer;
  transition: color 0.2s ease;
}

.mobile-btn:hover,
.mobile-btn:focus {
  color: var(--text-heading);
}

.mobile-btn-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Overlay for mobile sidebars */
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 140;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-overlay.is-visible {
  opacity: 1;
}

.mobile-overlay[hidden] {
  display: none;
}

/* --- Component: nav-top --- */
/* =========================================
   NAV TOP
   ========================================= */
.nav-top {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.nav-top-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  border: none;
}

.nav-logo:hover {
  filter: none;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center; 
  width: 2.25rem;
  height: 2.25rem;
  /* background: var(--accent-color); */
  fill: var(--accent-color);
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: 6px;
}

.logo-text {
  font-weight: 500;
  color: var(--text-heading);
  font-size: 1rem;
}

/* Main Nav */
.nav-main {
  display: none;
}

@media (min-width: 768px) {
  .nav-main {
    display: block;
  }
}

.nav-list {
  display: flex;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--text-color);
  text-decoration: none;
  border: none;
  border-radius: 6px;
  font-size: 0.9rem;
  transition: all 0.2s ease;
}

.nav-link:hover {
  background: var(--code-bg);
  color: var(--text-heading);
  filter: none;
}

.nav-link.is-active {
  color: var(--accent-color);
  font-weight: 500;
}

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

.search-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-meta);
  cursor: pointer;
  transition: all 0.2s ease;
}

.search-toggle:hover {
  border-color: var(--accent-color);
  color: var(--text-heading);
}

/* Search Modal */
.search-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 10vh 1rem;
}

.search-modal[hidden] {
  display: none;
}

.search-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
}

.search-modal-content {
  position: relative;
  width: 100%;
  max-width: 600px;
  background: var(--bg-color);
  border-radius: 12px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  overflow: hidden;
}

.search-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: transparent;
  border: none;
  color: var(--text-meta);
  cursor: pointer;
  padding: 0.5rem;
}

.search-close:hover {
  color: var(--text-heading);
}

#search-container {
  padding: 1.5rem;
}

/* --- Component: sidebar-left --- */
/* =========================================
   SIDEBAR LEFT - Site Navigation
   ========================================= */
.sidebar-left {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 280px;
  background: var(--bg-color);
  border-right: 1px solid var(--border-color);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  z-index: 150;
  overflow-y: auto;
}

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

@media (min-width: 1100px) {
  .sidebar-left {
    position: sticky;
    top: 60px;
    height: calc(100vh - 60px);
    transform: translateX(0);
  }
}

.sidebar-left-content {
  padding: 1.5rem;
}

.sidebar-close {
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2rem;
  height: 2rem;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-meta);
  cursor: pointer;
}

@media (min-width: 1100px) {
  .sidebar-close {
    display: none;
  }
}

.sidebar-section {
  margin-bottom: 2rem;
}

.sidebar-heading {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-meta);
  margin: 0 0 0.75rem 0;
  font-weight: 500;
}

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

.sidebar-list li {
  margin-bottom: 0.25rem;
}

.sidebar-link {
  display: block;
  padding: 0.5rem 0.75rem;
  color: var(--text-color);
  text-decoration: none;
  border: none;
  border-radius: 6px;
  font-size: 0.875rem;
  transition: all 0.2s ease;
}

.sidebar-link:hover {
  background: var(--code-bg);
  color: var(--text-heading);
  filter: none;
}

.sidebar-link.is-current {
  background: var(--code-bg);
  color: var(--accent-color);
  font-weight: 500;
}

/* --- Component: sidebar-right --- */
/* =========================================
   SIDEBAR RIGHT - Table of Contents
   ========================================= */
.sidebar-right {
  display: none;
}

@media (min-width: 1100px) {
  .sidebar-right {
    display: block;
    position: sticky;
    top: 60px;
    height: calc(100vh - 60px);
    width: 220px;
    padding: 1.5rem;
    overflow-y: auto;
  }
}

.toc-heading {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-meta);
  margin: 0 0 1rem 0;
  font-weight: 500;
}

.toc {
  font-size: 0.8rem;
}

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

.toc li {
  margin-bottom: 0.5rem;
}

.toc a {
  color: var(--text-color);
  text-decoration: none;
  border: none;
  transition: color 0.2s ease;
  display: block;
  padding: 0.25rem 0;
}

.toc a:hover {
  color: var(--accent-color);
  filter: none;
}

.toc a.is-active {
  color: var(--accent-color);
  font-weight: 500;
}

/* Nested levels */
.toc ul ul {
  padding-left: 1rem;
  margin-top: 0.5rem;
}

.toc ul ul a {
  font-size: 0.75rem;
  color: var(--text-meta);
}

/* --- Component: theme-toggle --- */
/* =========================================
   THEME TOGGLE
   ========================================= */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-meta);
  cursor: pointer;
  transition: all 0.2s ease;
}

.theme-toggle:hover {
  border-color: var(--accent-color);
  color: var(--text-heading);
}

.theme-icon-dark {
  display: none;
}

[data-theme="dark"] .theme-icon-light {
  display: none;
}

[data-theme="dark"] .theme-icon-dark {
  display: block;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-icon-light {
    display: none;
  }
  :root:not([data-theme="light"]) .theme-icon-dark {
    display: block;
  }
}