/* Root variables */
:root {
  --primary: #0f62fe;
  --primary-dark: #0353e9;
  --secondary: #ff832b;
  --accent: #24a148;
  --accent-light: #42be65;
  --warning: #f1c21b;
  --error: #da1e28;

  --bg-primary: #ffffff;
  --bg-secondary: #f4f4f4;
  --bg-tertiary: #e8e8e8;

  --text-primary: #161616;
  --text-secondary: #525252;
  --text-tertiary: #8d8d8d;

  --border: #e0e0e0;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.16);

  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  --font-mono: 'Monaco', 'Menlo', 'Ubuntu Mono', 'Courier New', monospace;

  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;

  --transition: all 0.2s ease;

  --header-height: 64px;
  --max-content-width: 1400px;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #161616;
    --bg-secondary: #262626;
    --bg-tertiary: #393939;
    --text-primary: #f4f4f4;
    --text-secondary: #c6c6c6;
    --text-tertiary: #8d8d8d;
    --border: #393939;
  }
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-family);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  line-height: 1.6;
  transition: background-color var(--transition), color var(--transition);
}

/* Typography */
h1 {
  font-size: clamp(2rem, 3.4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: var(--spacing-xl) 0 var(--spacing-lg) 0;
  color: var(--text-primary);
  text-wrap: balance;
}

h2 {
  font-size: clamp(1.55rem, 2.5vw, 2.1rem);
  font-weight: 700;
  line-height: 1.3;
  margin: var(--spacing-2xl) 0 var(--spacing-lg) 0;
  color: var(--primary);
  position: relative;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

h2 a {
  color: inherit;
  text-decoration: none;
}

h2 a:hover {
  color: var(--primary-dark);
}

h3 {
  font-size: clamp(1.25rem, 1.8vw, 1.55rem);
  font-weight: 700;
  margin: var(--spacing-xl) 0 var(--spacing-md) 0;
  color: var(--text-primary);
}

h4, h5, h6 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 1.1rem 0 0.7rem 0;
  color: var(--text-primary);
}

p {
  margin-bottom: var(--spacing-lg);
  color: var(--text-secondary);
}

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

em {
  font-style: italic;
}

a {
  color: var(--primary);
  text-decoration-color: color-mix(in srgb, var(--primary) 45%, transparent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
  transition: var(--transition);
  position: relative;
}

a:hover {
  color: var(--primary-dark);
  text-decoration-color: var(--primary-dark);
  text-decoration-thickness: 0.12em;
}

a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Lists */
ul, ol {
  margin: 0 0 var(--spacing-lg) 1.35rem;
  padding-left: 0.55rem;
}

li {
  margin-bottom: 0.55rem;
  color: var(--text-secondary);
  padding-left: 0.15rem;
}

ul li::marker {
  color: var(--primary);
}

ol li::marker {
  color: var(--primary-dark);
  font-weight: 700;
}

li strong {
  color: var(--text-primary);
}

.content p + ul,
.content p + ol {
  margin-top: -0.35rem;
}

.content a:not(.cta-button):not(.copy-button):not(.header-anchor) {
  font-weight: 500;
}

.content a:not(.cta-button):not(.copy-button):not(.header-anchor):hover {
  text-decoration-thickness: 0.14em;
}

.content li > ul,
.content li > ol {
  margin-top: 0.5rem;
  margin-bottom: 0.75rem;
}

/* Task Lists */
.task-item {
  list-style: none;
  margin-left: 0;
}

.task-item input[type="checkbox"] {
  margin-right: var(--spacing-md);
  cursor: pointer;
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
}

.task-item--completed {
  opacity: 0.6;
}

/* Code */
code {
  font-family: var(--font-mono);
  background-color: var(--bg-secondary);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--error);
}

pre {
  background-color: #282c34;
  border: 1px solid #3e4451;
  border-radius: var(--radius-lg);
  padding: calc(var(--spacing-lg) + 1.25rem) var(--spacing-lg) var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  position: relative;
  display: block;
  box-sizing: border-box;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

pre code {
  background: none !important;
  padding: 0 !important;
  color: #abb2bf !important;
  font-size: 0.95rem;
  line-height: 1.5;
  white-space: pre;
}

pre::-webkit-scrollbar {
  height: 10px;
}

pre::-webkit-scrollbar-thumb {
  background: #4b5263;
  border-radius: 999px;
}

pre::-webkit-scrollbar-track {
  background: #2f3440;
}

.code-language-badge {
  position: absolute;
  top: 0.5rem;
  left: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #c6d4ff;
  background: #1f2430;
  border: 1px solid #3e4451;
  border-radius: 999px;
  padding: 0.25rem 0.5rem;
  pointer-events: none;
}

/* Prism token colors (Eleventy syntaxhighlight plugin output) */
pre code .token.comment,
pre code .token.prolog,
pre code .token.doctype,
pre code .token.cdata {
  color: #5c6370;
}

pre code .token.punctuation {
  color: #abb2bf;
}

pre code .token.property,
pre code .token.tag,
pre code .token.constant,
pre code .token.symbol,
pre code .token.deleted {
  color: #e06c75;
}

pre code .token.boolean,
pre code .token.number {
  color: #d19a66;
}

pre code .token.selector,
pre code .token.attr-name,
pre code .token.string,
pre code .token.char,
pre code .token.builtin,
pre code .token.inserted {
  color: #98c379;
}

pre code .token.operator,
pre code .token.entity,
pre code .token.url,
pre code .token.variable {
  color: #56b6c2;
}

pre code .token.atrule,
pre code .token.attr-value,
pre code .token.function,
pre code .token.class-name {
  color: #61afef;
}

pre code .token.keyword,
pre code .token.important,
pre code .token.regex {
  color: #c678dd;
}

/* Dockerfile-specific Prism tokens */
pre code .token.instruction {
  color: #abb2bf;
}

pre code .token.instruction .token.keyword {
  color: #c678dd;
}

pre code .token.instruction .token.options .token.property {
  color: #61afef;
}

/* Override Highlight.js token colors for consistency */
.hljs {
  background: transparent !important;
  color: #abb2bf !important;
}

.hljs-string {
  color: #98c379 !important;
}

.hljs-number {
  color: #d19a66 !important;
}

.hljs-literal {
  color: #56b6c2 !important;
}

.hljs-attr,
.hljs-attribute {
  color: #61afef !important;
}

.hljs-title {
  color: #61afef !important;
}

.hljs-keyword {
  color: #c678dd !important;
}

.hljs-function {
  color: #61afef !important;
}

.hljs-comment {
  color: #5c6370 !important;
}

.hljs-symbol {
  color: #56b6c2 !important;
}

.hljs-punctuation {
  color: #abb2bf !important;
}

/* Code block with copy button */
.code-block-wrapper {
  position: relative;
  margin: var(--spacing-xl) 0;
}

.copy-button {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background-color: var(--primary);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
  z-index: 10;
}

.copy-button:hover {
  background-color: var(--primary-dark);
}

.copy-button.copied {
  background-color: var(--accent);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-xl) 0;
  font-size: 0.95rem;
}

table thead {
  background-color: var(--bg-secondary);
}

table th {
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 2px solid var(--border);
}

table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border);
}

table tbody tr:nth-child(odd) {
  background-color: var(--bg-secondary);
}

table tbody tr:hover {
  background-color: var(--bg-tertiary);
}

/* Blockquotes */
blockquote {
  border-left: 4px solid var(--primary);
  padding-left: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  color: var(--text-secondary);
  font-style: italic;
}

/* Layout */
.wrapper {
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

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

/* Header */
.header {
  position: sticky;
  top: 0;
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--bg-primary) 94%, #ffffff 6%) 0%,
    color-mix(in srgb, var(--bg-primary) 98%, transparent) 100%
  );
  border-bottom: 1px solid color-mix(in srgb, var(--primary) 20%, var(--border));
  height: var(--header-height);
  z-index: 100;
  display: flex;
  align-items: center;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(8px);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  height: 100%;
  padding: 0 var(--spacing-lg);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
  text-decoration: none;
  transition: var(--transition);
  border-radius: var(--radius-md);
  padding: 0.2rem 0.4rem;
}

.header-logo:hover {
  color: var(--primary);
  transform: translateY(-1px);
  background: color-mix(in srgb, var(--primary) 8%, transparent);
}

.header-logo:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.header-logo svg {
  width: 32px;
  height: 32px;
  transition: transform 0.2s ease;
}

.header-logo:hover svg {
  transform: rotate(-6deg) scale(1.06);
}

.header-nav {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.header-nav a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: color 0.2s ease, transform 0.2s ease;
  position: relative;
  padding: 0.45rem 0.2rem;
  text-decoration: none;
  border-radius: var(--radius-sm);
}

.header-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.25rem;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 999px;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.2s ease;
}

.header-nav a:hover {
  color: var(--primary);
  transform: translateY(-1px);
  background: color-mix(in srgb, var(--primary) 8%, transparent);
}

.header-nav a:hover::after,
.header-nav a.active::after {
  transform: scaleX(1);
}

.header-nav a.active {
  color: var(--primary);
  font-weight: 700;
}

.header-nav a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.mobile-menu-btn {
  display: none;
  background: color-mix(in srgb, var(--bg-secondary) 85%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  transition: var(--transition);
}

.mobile-menu-btn:hover {
  color: var(--primary);
  border-color: color-mix(in srgb, var(--primary) 45%, var(--border));
  background: color-mix(in srgb, var(--primary) 10%, var(--bg-secondary));
}

.mobile-menu-btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Breadcrumbs */
.breadcrumbs {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-lg) 0;
  font-size: 0.9rem;
  overflow-x: auto;
}

.breadcrumbs a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

.breadcrumbs a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.breadcrumbs span {
  color: var(--text-tertiary);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, #054fd4 100%);
  color: white;
  padding: var(--spacing-3xl) var(--spacing-lg);
  text-align: center;
  margin-top: calc(-1 * var(--header-height));
  padding-top: calc(var(--spacing-3xl) + var(--header-height));
}

.home-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.16), transparent 45%),
    radial-gradient(circle at 82% 18%, rgba(66, 190, 101, 0.22), transparent 42%),
    linear-gradient(130deg, #0f62fe 0%, #124fd9 48%, #0a3ea8 100%);
}

.home-hero::before,
.home-hero::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  pointer-events: none;
}

.home-hero::before {
  width: 520px;
  height: 520px;
  right: -220px;
  top: -220px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.18), transparent 68%);
}

.home-hero::after {
  width: 420px;
  height: 420px;
  left: -180px;
  bottom: -220px;
  background: radial-gradient(circle, rgba(255, 131, 43, 0.2), transparent 65%);
}

.home-hero .wrapper {
  position: relative;
  z-index: 1;
}

.hero h1 {
  color: white;
  margin-bottom: var(--spacing-lg);
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg) var(--spacing-xl);
  background-color: white;
  color: var(--primary);
  border: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  box-shadow: var(--shadow-md);
  border: 1px solid transparent;
}

.cta-button:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 12px 28px rgba(8, 20, 55, 0.28);
}

.cta-button:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

.cta-button.secondary {
  background-color: var(--secondary);
  color: white;
}

.cta-button.accent {
  background-color: var(--accent);
  color: white;
}

.cta-button svg {
  width: 24px;
  height: 24px;
  transition: transform 0.2s ease;
}

.cta-button:hover svg {
  transform: translateX(2px);
}

.home-showcase {
  position: relative;
  padding: var(--spacing-3xl) var(--spacing-lg);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--bg-primary) 90%, #e6f0ff 10%) 0%, var(--bg-primary) 68%),
    radial-gradient(circle at 88% 0%, rgba(15, 98, 254, 0.08), transparent 40%);
}

.home-showcase::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--primary) 45%, transparent), transparent);
}

.home-showcase .wrapper {
  position: relative;
  z-index: 1;
}

/* Main Content */
main {
  min-height: calc(100vh - var(--header-height));
  padding: var(--spacing-3xl) var(--spacing-lg);
}

.page-header {
  margin-bottom: var(--spacing-2xl);
}

.page-title {
  color: var(--primary);
  margin-bottom: var(--spacing-lg);
}

.page-intro {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-2xl);
  max-width: 100%;
}

/* Two Column Layout */
.layout-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--spacing-2xl);
}

.layout-with-sidebar .content {
  min-width: 0;
}

.sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--spacing-lg));
  height: fit-content;
}

.sidebar-section {
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.sidebar-title {
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

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

.sidebar-list li {
  margin-bottom: 0;
  padding: var(--spacing-sm) 0;
}

.sidebar-list a {
  color: var(--primary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

.sidebar-list a:hover {
  color: var(--primary-dark);
  padding-left: var(--spacing-sm);
}

.sidebar-list a.active {
  font-weight: 600;
  color: var(--primary-dark);
}

/* Table of Contents */
.toc {
  background-color: var(--bg-secondary);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.toc-title {
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

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

.toc ul li {
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-md);
}

.toc a {
  color: var(--primary);
  text-decoration: none;
  font-size: 0.9rem;
}

.toc a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.toc ul ul {
  margin-top: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

/* Related Links */
.related-links {
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin: var(--spacing-2xl) 0;
}

.related-links-title {
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.related-links-list {
  list-style: none;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.related-links-list li {
  margin-bottom: 0;
}

.related-links-list a {
  display: block;
  padding: var(--spacing-md);
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
  color: var(--primary);
  text-decoration: none;
}

.related-links-list a:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

/* Navigation Between Pages */
.page-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  margin: var(--spacing-2xl) 0 0 0;
  padding-top: var(--spacing-2xl);
  border-top: 1px solid var(--border);
}

.page-nav a {
  display: block;
  padding: var(--spacing-lg);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  color: var(--primary);
  text-decoration: none;
}

.page-nav a:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.page-nav-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-tertiary);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.page-nav-title {
  display: block;
  color: var(--text-primary);
  margin-top: var(--spacing-sm);
  font-weight: 600;
}

.page-nav a:last-child {
  text-align: right;
}

/* Footer */
.footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: var(--spacing-3xl) var(--spacing-lg);
  margin-top: var(--spacing-3xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
  margin-top: 0;
  color: var(--text-primary);
}

.footer-links {
  list-style: none;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
}

.footer-links a {
  color: var(--primary);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    font-size: 15px;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.25rem;
  }

  .header-nav {
    gap: var(--spacing-md);
  }

  .header-nav a {
    font-size: 0.85rem;
  }

  .layout-with-sidebar {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .cta-buttons {
    grid-template-columns: 1fr;
  }

  .page-nav {
    grid-template-columns: 1fr;
  }

  .page-nav a:last-child {
    text-align: left;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  table {
    font-size: 0.85rem;
  }

  table th, table td {
    padding: var(--spacing-sm);
  }

  pre {
    padding: var(--spacing-md);
    font-size: 0.8rem;
  }

  .mobile-menu-btn {
    display: block;
  }
}

@media (max-width: 480px) {
  :root {
    font-size: 14px;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.25rem;
  }

  h3 {
    font-size: 1.1rem;
  }

  main {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .hero {
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  pre {
    margin-left: calc(-1 * var(--spacing-md));
    margin-right: calc(-1 * var(--spacing-md));
    border-radius: 0;
  }

  .copy-button {
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
  }
}

/* Syntax Highlighting (Highlight.js compatible) */
.hljs {
  background: transparent;
  color: var(--text-primary);
}

.hljs-attr,
.hljs-attribute {
  color: #0f62fe;
}

.hljs-string,
.hljs-title.class_.inherited__ {
  color: #24a148;
}

.hljs-number {
  color: #f1c21b;
}

.hljs-literal {
  color: #ff832b;
}

.hljs-comment {
  color: var(--text-tertiary);
}

.hljs-keyword {
  color: #0f62fe;
}

.hljs-function {
  color: #da1e28;
}

/* Platform Caveats Box */
.platform-caveats {
  background-color: #fef3c7;
  border-left: 4px solid var(--warning);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.platform-caveats-title {
  font-weight: 600;
  color: #92400e;
  margin-bottom: var(--spacing-md);
}

.platform-caveats ul {
  margin-left: var(--spacing-lg);
}

.platform-caveats li {
  color: #78350f;
}

/* Topic Cards */
.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin: var(--spacing-2xl) 0;
}

.topic-card {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(165deg, color-mix(in srgb, var(--bg-secondary) 92%, #ffffff 8%) 0%, var(--bg-secondary) 100%);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
  border: 1px solid color-mix(in srgb, var(--primary) 14%, var(--border));
  box-shadow: 0 6px 18px rgba(16, 24, 40, 0.08);
}

.topic-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(15, 98, 254, 0.09), transparent 38%);
  opacity: 0;
  transition: opacity 0.22s ease;
  pointer-events: none;
}

.topic-card:hover {
  box-shadow: 0 14px 30px rgba(8, 20, 55, 0.16);
  transform: translateY(-6px);
  border-color: var(--primary);
}

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

.topic-card h3 {
  color: var(--primary);
  margin-top: 0;
}

.topic-card p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
}

.topic-card a {
  display: inline-block;
  margin-top: var(--spacing-md);
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
  position: relative;
  transition: color 0.2s ease, transform 0.2s ease;
}

.topic-card a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.18rem;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.topic-card a:hover {
  color: var(--primary-dark);
  transform: translateX(2px);
}

.topic-card a:hover::after {
  transform: scaleX(1);
}

/* Print Styles */
@media print {
  .header,
  .footer,
  .sidebar,
  .page-nav,
  .copy-button {
    display: none;
  }

  body {
    background-color: white;
    color: black;
  }

  a {
    color: #0f62fe;
  }
}