/* ==========================================================================
   Apple Developer Design-Inspired Blog Stylesheet
   Aesthetic reference: https://developer.apple.com/design/
   ========================================================================== */

/* ==========================================================================
   1. CSS Custom Properties (Design Tokens)
   ========================================================================== */

:root {
  /* Colors – Light Mode */
  --color-bg: #ffffff;
  --color-bg-secondary: #f5f5f7;
  --color-text-primary: #1d1d1f;
  --color-text-secondary: #6e6e73;
  --color-border: #d2d2d7;
  --color-accent: #0066cc;
  --color-card-bg: #ffffff;
  --color-card-shadow: rgba(0, 0, 0, 0.04);
  --color-card-shadow-hover: rgba(0, 0, 0, 0.12);
  --color-nav-bg: rgba(255, 255, 255, 0.72);
  --color-code-bg: #f5f5f7;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display",
    "Helvetica Neue", "Helvetica", "Arial", sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono",
    "Courier New", monospace;

  /* Spacing */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;
  --space-2xl: 80px;

  /* Layout */
  --content-max-width: 1120px;
  --card-radius: 12px;
  --nav-height: 52px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

/* ==========================================================================
   2. Dark Mode
   ========================================================================== */

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #000000;
    --color-bg-secondary: #1c1c1e;
    --color-text-primary: #f5f5f7;
    --color-text-secondary: #a1a1a6;
    --color-border: #38383a;
    --color-card-bg: #1c1c1e;
    --color-card-shadow: rgba(0, 0, 0, 0.3);
    --color-card-shadow-hover: rgba(0, 0, 0, 0.5);
    --color-nav-bg: rgba(0, 0, 0, 0.72);
    --color-code-bg: #2c2c2e;
    --color-accent: #2997ff;
  }
}

[data-theme="dark"] {
  --color-bg: #000000;
  --color-bg-secondary: #1c1c1e;
  --color-text-primary: #f5f5f7;
  --color-text-secondary: #a1a1a6;
  --color-border: #38383a;
  --color-card-bg: #1c1c1e;
  --color-card-shadow: rgba(0, 0, 0, 0.3);
  --color-card-shadow-hover: rgba(0, 0, 0, 0.5);
  --color-nav-bg: rgba(0, 0, 0, 0.72);
  --color-code-bg: #2c2c2e;
  --color-accent: #2997ff;
}

/* ==========================================================================
   3. Reset & Base
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   4. Navigation
   ========================================================================== */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-nav-bg);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--color-border);
  height: var(--nav-height);
}

.nav-inner {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  font-weight: 600;
  font-size: 17px;
  color: var(--color-text-primary);
  text-decoration: none;
  letter-spacing: -0.3px;
}

.nav-logo:hover {
  text-decoration: none;
  color: var(--color-text-primary);
}

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav-link {
  font-size: 14px;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text-primary);
  text-decoration: none;
}

.nav-link.active {
  color: var(--color-text-primary);
  font-weight: 600;
}

.theme-toggle {
  appearance: none;
  -webkit-appearance: none;
  border: none;
  background: transparent;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: 18px;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  padding: 0;
}

.theme-toggle:hover {
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

/* Theme toggle icon visibility: show moon in light, sun in dark */
.icon-sun {
  display: none;
}

.icon-moon {
  display: block;
}

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

[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;
}

/* ==========================================================================
   5. Site Content Container
   ========================================================================== */

.site-content {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ==========================================================================
   6. Sections
   ========================================================================== */

.section {
  padding: var(--space-xl) 0;
}

.section + .section {
  border-top: 1px solid var(--color-border);
}

.section-eyebrow {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--color-text-primary);
  margin: 0 0 var(--space-lg) 0;
  line-height: 1.2;
}

/* ==========================================================================
   7. Card Grid
   ========================================================================== */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

@media (max-width: 900px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   8. Card Component
   ========================================================================== */

.card {
  display: block;
  background-color: var(--color-card-bg);
  border-radius: var(--card-radius);
  padding: var(--space-md);
  text-decoration: none;
  border: 1px solid var(--color-border);
  box-shadow: 0 1px 3px var(--color-card-shadow);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--color-card-shadow-hover);
  text-decoration: none;
}

.card-category {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.card-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.card-excerpt {
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.card-date {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ==========================================================================
   9. Pinned Section (same style as category sections)
   ========================================================================== */

/* ==========================================================================
   10. Post Layout
   ========================================================================== */

/* Hero Image */
.post-hero {
  margin: 0 calc(-1 * var(--space-md));
  margin-bottom: var(--space-lg);
  border-radius: var(--card-radius);
  overflow: hidden;
  max-height: 400px;
}

.post-hero img {
  width: 100%;
  height: 100%;
  max-height: 400px;
  object-fit: cover;
  display: block;
}

.post-header {
  text-align: center;
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-lg);
}

.post-category {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.post-title {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.15;
  color: var(--color-text-primary);
  margin: var(--space-sm) 0;
}

.post-date {
  font-size: 15px;
  color: var(--color-text-secondary);
}

/* Post Layout: TOC sidebar + content */
.post-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-xl);
  align-items: start;
}

@media (max-width: 900px) {
  .post-layout {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

/* Table of Contents */
.post-toc {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-md));
  max-height: calc(100vh - var(--nav-height) - 48px);
  overflow-y: auto;
}

@media (max-width: 900px) {
  .post-toc {
    position: static;
    max-height: none;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--space-md);
    margin-bottom: var(--space-lg);
  }
}

.toc-nav {
  padding-right: var(--space-sm);
}

.toc-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-sm) 0;
}

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

.toc-item {
  margin-bottom: 2px;
}

.toc-item.toc-sub {
  padding-left: 12px;
}

.toc-link {
  display: block;
  font-size: 13px;
  line-height: 1.4;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: 4px 0 4px 12px;
  border-left: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

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

.toc-link.active {
  color: var(--color-accent);
  border-left-color: var(--color-accent);
  font-weight: 500;
}

/* Post Body */

.post-body {
  max-width: 720px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text-primary);
  min-width: 0;
}

.post-body h2 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
  line-height: 1.25;
}

.post-body h3 {
  font-size: 20px;
  font-weight: 600;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.post-body p {
  margin-top: 0;
  margin-bottom: var(--space-sm);
}

.post-body code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background-color: var(--color-code-bg);
  padding: 2px 6px;
  border-radius: 4px;
}

.post-body pre {
  background-color: var(--color-code-bg);
  border-radius: var(--card-radius);
  padding: var(--space-sm);
  overflow-x: auto;
  margin: var(--space-md) 0;
  line-height: 1.5;
}

.post-body pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: 14px;
}

.post-body blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-sm);
  margin: var(--space-md) 0;
  font-style: italic;
  color: var(--color-text-secondary);
}

.post-body blockquote p:last-child {
  margin-bottom: 0;
}

.post-body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-md) 0;
}

.post-body th,
.post-body td {
  padding: 10px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.post-body th {
  font-weight: 600;
  background-color: var(--color-bg-secondary);
  font-size: 14px;
}

.post-body img {
  max-width: 100%;
  border-radius: 8px;
  margin: var(--space-md) auto;
}

.post-body ul,
.post-body ol {
  padding-left: var(--space-md);
  margin-bottom: var(--space-sm);
}

.post-body li {
  margin-bottom: var(--space-xs);
}

.post-body a {
  color: var(--color-accent);
  text-decoration: none;
}

.post-body a:hover {
  text-decoration: underline;
}

.post-body hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-lg) 0;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: var(--space-xl);
  color: var(--color-accent);
  font-size: 15px;
  text-decoration: none;
}

.back-link::before {
  content: "\2190";
  font-size: 18px;
}

.back-link:hover {
  text-decoration: underline;
}

/* ==========================================================================
   11. Resume Page
   ========================================================================== */

.resume-header {
  text-align: center;
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.resume-name {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--color-text-primary);
  margin: 0;
}

.resume-name-en {
  font-size: 20px;
  font-weight: 400;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.resume-focus {
  font-size: 18px;
  color: var(--color-text-secondary);
  margin-top: 12px;
}

.resume-contacts {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 20px;
}

.resume-contacts a {
  color: var(--color-accent);
  text-decoration: none;
  font-size: 14px;
}

.resume-contacts a:hover {
  text-decoration: underline;
}

.resume-section {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
}

.resume-section:last-child {
  border-bottom: none;
}

.resume-section h2 {
  font-size: 22px;
  font-weight: 600;
  margin: 0 0 var(--space-md) 0;
  color: var(--color-text-primary);
}

.resume-about {
  max-width: 720px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.resume-goal {
  margin-top: var(--space-sm);
  font-style: italic;
}

/* Career Timeline */

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

.career-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-sm);
  padding: 14px 0;
}

.career-item + .career-item {
  border-top: 1px solid var(--color-border);
}

.career-info {
  flex: 1;
  min-width: 0;
}

.career-title {
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 2px;
}

.career-org {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.career-period {
  font-size: 14px;
  color: var(--color-text-secondary);
  text-align: right;
  white-space: nowrap;
  flex-shrink: 0;
}

/* Awards Table */

.awards-table {
  width: 100%;
  border-collapse: collapse;
}

.awards-table th,
.awards-table td {
  padding: 10px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}

.awards-table th {
  font-weight: 600;
  background-color: var(--color-bg-secondary);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  color: var(--color-text-secondary);
}

.awards-table tr:hover td {
  background-color: var(--color-bg-secondary);
}

/* Projects Grid */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

@media (max-width: 600px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

.project-card {
  background-color: var(--color-bg-secondary);
  border-radius: var(--card-radius);
  padding: var(--space-md);
}

.project-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 var(--space-xs) 0;
  color: var(--color-text-primary);
}

.project-card .project-type {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.project-card .project-period {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.project-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 12px 0;
  line-height: 1.5;
}

.project-card .tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: var(--space-xs);
}

.project-card .tech-tag {
  font-size: 12px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 99px;
  padding: 2px 10px;
  color: var(--color-text-secondary);
}

/* Course Table */

.course-table {
  width: 100%;
  border-collapse: collapse;
}

.course-table th,
.course-table td {
  padding: 8px 14px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}

.course-table th {
  font-weight: 600;
  background-color: var(--color-bg-secondary);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  color: var(--color-text-secondary);
}

/* ==========================================================================
   12. Footer
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-lg) 0;
  text-align: center;
}

.site-footer p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
}

/* ==========================================================================
   13. Rouge Syntax Highlighting (Xcode-Inspired)
   ========================================================================== */

/* Light Mode Syntax Colors */
.highlight .c,
.highlight .c1,
.highlight .cm,
.highlight .cs {
  color: #708090;
  font-style: italic;
}

.highlight .cp {
  color: #643820;
  font-weight: 600;
}

.highlight .k,
.highlight .kd,
.highlight .kn,
.highlight .kp,
.highlight .kr,
.highlight .kc,
.highlight .kt {
  color: #ad3da4;
  font-weight: 600;
}

.highlight .kv {
  color: #ad3da4;
}

.highlight .s,
.highlight .s1,
.highlight .s2,
.highlight .sb,
.highlight .sc,
.highlight .dl,
.highlight .sh {
  color: #d12f1b;
}

.highlight .si {
  color: #d12f1b;
}

.highlight .sx {
  color: #d12f1b;
}

.highlight .sr {
  color: #d12f1b;
}

.highlight .se {
  color: #d12f1b;
  font-weight: 600;
}

.highlight .sa {
  color: #ad3da4;
}

.highlight .nb {
  color: #804fb8;
}

.highlight .nc,
.highlight .nn,
.highlight .no {
  color: #3e8087;
}

.highlight .nd {
  color: #643820;
}

.highlight .ni {
  color: #1d1d1f;
}

.highlight .nf,
.highlight .fm {
  color: #4b21b0;
}

.highlight .na {
  color: #4b21b0;
}

.highlight .nt {
  color: #ad3da4;
}

.highlight .nv,
.highlight .vi,
.highlight .vg,
.highlight .vc {
  color: #3e8087;
}

.highlight .mi,
.highlight .mf,
.highlight .mh,
.highlight .mo,
.highlight .mb,
.highlight .mx,
.highlight .il {
  color: #1c00cf;
}

.highlight .o,
.highlight .ow {
  color: #1d1d1f;
}

.highlight .p {
  color: #1d1d1f;
}

.highlight .ge {
  font-style: italic;
}

.highlight .gs {
  font-weight: 700;
}

.highlight .gd {
  color: #d12f1b;
  background-color: rgba(209, 47, 27, 0.08);
}

.highlight .gi {
  color: #007400;
  background-color: rgba(0, 116, 0, 0.08);
}

.highlight .gh {
  color: #1d1d1f;
  font-weight: 700;
}

.highlight .gu {
  color: #6e6e73;
}

.highlight .gl {
  text-decoration: underline;
}

.highlight .w {
  color: transparent;
}

.highlight .err {
  color: #d12f1b;
}

/* Dark Mode Syntax Colors */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .highlight .c,
  :root:not([data-theme="light"]) .highlight .c1,
  :root:not([data-theme="light"]) .highlight .cm,
  :root:not([data-theme="light"]) .highlight .cs {
    color: #7f8c8d;
  }

  :root:not([data-theme="light"]) .highlight .cp {
    color: #fd8f3f;
  }

  :root:not([data-theme="light"]) .highlight .k,
  :root:not([data-theme="light"]) .highlight .kd,
  :root:not([data-theme="light"]) .highlight .kn,
  :root:not([data-theme="light"]) .highlight .kp,
  :root:not([data-theme="light"]) .highlight .kr,
  :root:not([data-theme="light"]) .highlight .kc,
  :root:not([data-theme="light"]) .highlight .kt {
    color: #fc5fa3;
  }

  :root:not([data-theme="light"]) .highlight .kv {
    color: #fc5fa3;
  }

  :root:not([data-theme="light"]) .highlight .s,
  :root:not([data-theme="light"]) .highlight .s1,
  :root:not([data-theme="light"]) .highlight .s2,
  :root:not([data-theme="light"]) .highlight .sb,
  :root:not([data-theme="light"]) .highlight .sc,
  :root:not([data-theme="light"]) .highlight .dl,
  :root:not([data-theme="light"]) .highlight .sh {
    color: #fc6a5d;
  }

  :root:not([data-theme="light"]) .highlight .si {
    color: #fc6a5d;
  }

  :root:not([data-theme="light"]) .highlight .sx {
    color: #fc6a5d;
  }

  :root:not([data-theme="light"]) .highlight .sr {
    color: #fc6a5d;
  }

  :root:not([data-theme="light"]) .highlight .se {
    color: #fc6a5d;
  }

  :root:not([data-theme="light"]) .highlight .sa {
    color: #fc5fa3;
  }

  :root:not([data-theme="light"]) .highlight .nb {
    color: #b281eb;
  }

  :root:not([data-theme="light"]) .highlight .nc,
  :root:not([data-theme="light"]) .highlight .nn,
  :root:not([data-theme="light"]) .highlight .no {
    color: #5dd8d8;
  }

  :root:not([data-theme="light"]) .highlight .nd {
    color: #fd8f3f;
  }

  :root:not([data-theme="light"]) .highlight .nf,
  :root:not([data-theme="light"]) .highlight .fm {
    color: #67b7a4;
  }

  :root:not([data-theme="light"]) .highlight .na {
    color: #67b7a4;
  }

  :root:not([data-theme="light"]) .highlight .nt {
    color: #fc5fa3;
  }

  :root:not([data-theme="light"]) .highlight .nv,
  :root:not([data-theme="light"]) .highlight .vi,
  :root:not([data-theme="light"]) .highlight .vg,
  :root:not([data-theme="light"]) .highlight .vc {
    color: #5dd8d8;
  }

  :root:not([data-theme="light"]) .highlight .mi,
  :root:not([data-theme="light"]) .highlight .mf,
  :root:not([data-theme="light"]) .highlight .mh,
  :root:not([data-theme="light"]) .highlight .mo,
  :root:not([data-theme="light"]) .highlight .mb,
  :root:not([data-theme="light"]) .highlight .mx,
  :root:not([data-theme="light"]) .highlight .il {
    color: #d0bf69;
  }

  :root:not([data-theme="light"]) .highlight .o,
  :root:not([data-theme="light"]) .highlight .ow {
    color: #f5f5f7;
  }

  :root:not([data-theme="light"]) .highlight .p {
    color: #f5f5f7;
  }

  :root:not([data-theme="light"]) .highlight .gd {
    color: #fc6a5d;
    background-color: rgba(252, 106, 93, 0.1);
  }

  :root:not([data-theme="light"]) .highlight .gi {
    color: #83c9bc;
    background-color: rgba(131, 201, 188, 0.1);
  }

  :root:not([data-theme="light"]) .highlight .gh {
    color: #f5f5f7;
  }

  :root:not([data-theme="light"]) .highlight .gu {
    color: #a1a1a6;
  }

  :root:not([data-theme="light"]) .highlight .err {
    color: #fc6a5d;
  }
}

[data-theme="dark"] .highlight .c,
[data-theme="dark"] .highlight .c1,
[data-theme="dark"] .highlight .cm,
[data-theme="dark"] .highlight .cs {
  color: #7f8c8d;
}

[data-theme="dark"] .highlight .cp {
  color: #fd8f3f;
}

[data-theme="dark"] .highlight .k,
[data-theme="dark"] .highlight .kd,
[data-theme="dark"] .highlight .kn,
[data-theme="dark"] .highlight .kp,
[data-theme="dark"] .highlight .kr,
[data-theme="dark"] .highlight .kc,
[data-theme="dark"] .highlight .kt {
  color: #fc5fa3;
}

[data-theme="dark"] .highlight .kv {
  color: #fc5fa3;
}

[data-theme="dark"] .highlight .s,
[data-theme="dark"] .highlight .s1,
[data-theme="dark"] .highlight .s2,
[data-theme="dark"] .highlight .sb,
[data-theme="dark"] .highlight .sc,
[data-theme="dark"] .highlight .dl,
[data-theme="dark"] .highlight .sh {
  color: #fc6a5d;
}

[data-theme="dark"] .highlight .si {
  color: #fc6a5d;
}

[data-theme="dark"] .highlight .sx {
  color: #fc6a5d;
}

[data-theme="dark"] .highlight .sr {
  color: #fc6a5d;
}

[data-theme="dark"] .highlight .se {
  color: #fc6a5d;
}

[data-theme="dark"] .highlight .sa {
  color: #fc5fa3;
}

[data-theme="dark"] .highlight .nb {
  color: #b281eb;
}

[data-theme="dark"] .highlight .nc,
[data-theme="dark"] .highlight .nn,
[data-theme="dark"] .highlight .no {
  color: #5dd8d8;
}

[data-theme="dark"] .highlight .nd {
  color: #fd8f3f;
}

[data-theme="dark"] .highlight .nf,
[data-theme="dark"] .highlight .fm {
  color: #67b7a4;
}

[data-theme="dark"] .highlight .na {
  color: #67b7a4;
}

[data-theme="dark"] .highlight .nt {
  color: #fc5fa3;
}

[data-theme="dark"] .highlight .nv,
[data-theme="dark"] .highlight .vi,
[data-theme="dark"] .highlight .vg,
[data-theme="dark"] .highlight .vc {
  color: #5dd8d8;
}

[data-theme="dark"] .highlight .mi,
[data-theme="dark"] .highlight .mf,
[data-theme="dark"] .highlight .mh,
[data-theme="dark"] .highlight .mo,
[data-theme="dark"] .highlight .mb,
[data-theme="dark"] .highlight .mx,
[data-theme="dark"] .highlight .il {
  color: #d0bf69;
}

[data-theme="dark"] .highlight .o,
[data-theme="dark"] .highlight .ow {
  color: #f5f5f7;
}

[data-theme="dark"] .highlight .p {
  color: #f5f5f7;
}

[data-theme="dark"] .highlight .gd {
  color: #fc6a5d;
  background-color: rgba(252, 106, 93, 0.1);
}

[data-theme="dark"] .highlight .gi {
  color: #83c9bc;
  background-color: rgba(131, 201, 188, 0.1);
}

[data-theme="dark"] .highlight .gh {
  color: #f5f5f7;
}

[data-theme="dark"] .highlight .gu {
  color: #a1a1a6;
}

[data-theme="dark"] .highlight .err {
  color: #fc6a5d;
}

/* Highlight wrapper */
.highlight {
  background-color: var(--color-code-bg);
  border-radius: var(--card-radius);
  padding: var(--space-sm);
  overflow-x: auto;
  margin: var(--space-md) 0;
  line-height: 1.5;
  font-family: var(--font-mono);
  font-size: 14px;
}

.highlight pre {
  margin: 0;
  padding: 0;
  background: none;
  border-radius: 0;
  overflow: visible;
}

.highlight code {
  background: none;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
}

/* ==========================================================================
   14. Overview Page (Apple Support Style)
   ========================================================================== */

/* Hero */
.overview-hero {
  text-align: center;
  padding: var(--space-2xl) 0 var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}

.overview-hero-title {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--color-text-primary);
  margin: 0;
}

.overview-hero-subtitle {
  font-size: 20px;
  color: var(--color-text-secondary);
  margin-top: 8px;
}

.overview-hero-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 16px auto 0;
  line-height: 1.6;
}

/* Topic Blocks - Apple Support style grid */
.overview-topics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

@media (max-width: 900px) {
  .overview-topics {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .overview-topics {
    grid-template-columns: 1fr;
  }
}

.overview-topic-block {
  background-color: var(--color-bg-secondary);
  border-radius: var(--card-radius);
  padding: var(--space-md);
}

.overview-topic-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 var(--space-sm) 0;
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
}

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

.overview-topic-list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}

.overview-topic-list li:last-child {
  border-bottom: none;
}

.overview-topic-list a {
  font-size: 14px;
  color: var(--color-accent);
  text-decoration: none;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.overview-topic-list a:hover {
  text-decoration: underline;
}

.overview-topic-list time {
  font-size: 12px;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.overview-topic-more {
  display: inline-block;
  margin-top: var(--space-sm);
  font-size: 13px;
  color: var(--color-accent);
  text-decoration: none;
}

.overview-topic-more:hover {
  text-decoration: underline;
}

/* Career Cards */
.overview-career-card {
  background-color: var(--color-bg-secondary);
  border-radius: var(--card-radius);
  padding: var(--space-md);
}

.overview-career-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 6px 0;
}

.overview-career-org {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0 0 8px 0;
}

.overview-career-org a {
  color: var(--color-accent);
  text-decoration: none;
}

.overview-career-org a:hover {
  text-decoration: underline;
}

.overview-career-period {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* Project Cards on Overview */
.overview-project-card {
  background-color: var(--color-bg-secondary);
  border-radius: var(--card-radius);
  padding: var(--space-md);
}

.overview-project-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 6px 0;
}

.overview-project-card .project-type {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.overview-project-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin: 10px 0;
}

.overview-project-card .tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: var(--space-xs);
}

.overview-project-card .tech-tag {
  font-size: 12px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 99px;
  padding: 2px 10px;
  color: var(--color-text-secondary);
}

/* Awards on Overview */
.overview-awards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}

@media (max-width: 900px) {
  .overview-awards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .overview-awards {
    grid-template-columns: 1fr;
  }
}

.overview-award-item {
  background-color: var(--color-bg-secondary);
  border-radius: var(--card-radius);
  padding: var(--space-sm) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.overview-award-tier {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.overview-award-org {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ==========================================================================
   15. Responsive Adjustments
   ========================================================================== */

@media (max-width: 600px) {
  .section {
    padding: var(--space-lg) 0;
  }

  .section-title {
    font-size: 24px;
    margin-bottom: var(--space-md);
  }

  .post-title {
    font-size: 28px;
  }

  .post-body {
    font-size: 16px;
  }

  .resume-name {
    font-size: 32px;
  }

  .resume-header {
    padding: var(--space-lg) 0;
  }

  .overview-hero-title {
    font-size: 32px;
  }

  .overview-hero-subtitle {
    font-size: 17px;
  }

  .nav-links {
    gap: 16px;
  }

  .nav-link {
    font-size: 13px;
  }

  .career-item {
    flex-direction: column;
    gap: 4px;
  }

  .career-period {
    text-align: left;
  }
}