/* Table of Contents */
.toc {
  background: #F5F3F7;
  border-radius: 12px;
  padding: 24px 28px;
  margin-bottom: 40px;
  border: 1px solid #E8E5EB;
}

.toc-title {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #6b6574;
  margin-bottom: 16px;
}

.toc ol {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
  counter-reset: toc-counter;
}

.toc > ol > li {
  counter-increment: toc-counter;
  margin-bottom: 8px;
}

.toc > ol > li > a::before {
  content: counter(toc-counter) ". ";
  color: #785D8F;
  font-weight: 500;
}

.toc a {
  color: #353D4C;
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
}

.toc a:hover {
  color: #785D8F;
}

/* Basic Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 17px;
  color: #27232A;
  background: #FFFFFF;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern" 1, "liga" 1;
}

html {
  scroll-behavior: smooth;
}

*:focus {
  outline: 2px solid #785D8F;
  outline-offset: 2px;
}

/* Navigation */
.nav {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  padding: 20px 60px;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 100;
}

.nav-logo {
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #27232A, #785D8F);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-direction: row;
  gap: 28px;
  align-items: center;
  min-height: 40px;
}

.nav-links a {
  font-weight: 400;
  font-size: 15px;
  line-height: 1.5;
  color: #27232A;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a.active {
  color: #785D8F;
}

.nav-links a.nav-brand {
  font-weight: 500;
  color: #785D8F;
  padding: 8px 16px;
  border: 1px solid #E8E5EB;
  border-radius: 20px;
}

.nav-links a.nav-brand:hover {
  background: #785D8F;
  color: white;
  border-color: #785D8F;
}

/* Main content */
.main {
  flex: 1;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 48px 40px 80px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: #27232A;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 42px;
  line-height: 1.15;
  background: linear-gradient(to right, #27232A, #785D8F);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid #E8E5EB;
}

h2 {
  font-size: 28px;
  line-height: 1.25;
  margin-top: 56px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid #E8E5EB;
}

h3 {
  font-size: 21px;
  line-height: 1.35;
  margin-top: 40px;
  margin-bottom: 14px;
}

h4 {
  font-size: 18px;
  line-height: 1.4;
  margin-top: 32px;
  margin-bottom: 12px;
}

p {
  font-size: 17px;
  line-height: 1.7;
  color: #353D4C;
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}

strong {
  font-weight: 600;
  color: #27232A;
}

a {
  color: #785D8F;
  text-decoration: none;
}

a:hover {
  color: #4F3959;
}

/* Lists */
ul, ol {
  margin-bottom: 24px;
  padding-left: 24px;
}

li {
  font-size: 17px;
  line-height: 1.5;
  color: #353D4C;
  margin-bottom: 6px;
  letter-spacing: 0.01em;
}

li > ul, li > ol {
  margin-top: 6px;
  margin-bottom: 0;
}

/* Nested lists */
li > ul > li,
li > ol > li {
  margin-bottom: 4px;
}

/* Code */
code {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.88em;
  background: #F5F3F7;
  padding: 3px 7px;
  border-radius: 5px;
  color: #785D8F;
}

pre {
  background: #F5F3F7;
  padding: 20px 24px;
  border-radius: 12px;
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid #E8E5EB;
}

pre code {
  background: none;
  padding: 0;
  color: #27232A;
  font-size: 14px;
  line-height: 1.6;
}

/* Blockquote */
blockquote {
  border-left: 3px solid #785D8F;
  padding: 16px 24px;
  margin: 28px 0;
  background: linear-gradient(135deg, rgba(120, 93, 143, 0.06), rgba(39, 35, 42, 0.02));
  border-radius: 0 12px 12px 0;
}

blockquote p {
  font-size: 17px;
  font-style: italic;
  color: #4F3959;
  margin-bottom: 0;
  line-height: 1.6;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid #E8E5EB;
  font-size: 15px;
}

th, td {
  padding: 14px 18px;
  text-align: left;
  line-height: 1.5;
}

th {
  background: #F5F3F7;
  font-weight: 600;
  color: #27232A;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

td {
  border-top: 1px solid #E8E5EB;
  color: #353D4C;
}

/* Horizontal rule */
hr {
  border: none;
  border-top: 1px solid #E8E5EB;
  margin: 48px 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 28px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  margin-right: 10px;
  margin-bottom: 10px;
}

.btn-primary {
  background-color: #27232A;
  color: #FFFFFF;
}

.btn-primary:hover {
  transform: translateY(-2px);
  background-color: #4F3959;
  text-decoration: none;
}

.btn:not(.btn-primary) {
  background-color: #FFFFFF;
  color: #27232A;
  border: 1px solid #E8E5EB;
}

.btn:not(.btn-primary):hover {
  background-color: #F5F3F7;
  border-color: #785D8F;
  text-decoration: none;
}

/* Footer */
.footer {
  border-top: 1px solid #E8E5EB;
  margin-top: auto;
  background: #F5F3F7;
}

.footer-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 28px 40px;
  text-align: center;
  color: #6b6574;
  font-size: 14px;
  line-height: 1.6;
}

.footer-container p {
  margin-bottom: 6px;
}

.footer-container a {
  color: #5a5565;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-container a:hover {
  color: #785D8F;
}

.footer-version {
  font-size: 12px;
  color: #5a5565;
  margin-top: 8px;
}

/* Templates list */
.templates-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
}

.template-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: #F5F3F7;
  border-radius: 8px;
  border: 1px solid #E8E5EB;
}

.template-name {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 15px;
  font-weight: 500;
  color: #27232A;
}

.template-links {
  display: flex;
  gap: 16px;
}

.template-links a {
  font-size: 14px;
  color: #785D8F;
  text-decoration: none;
}

.template-links a:hover {
  text-decoration: underline;
}

/* Download button */
.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: #785D8F;
  color: white;
  border-radius: 8px;
  font-weight: 500;
  font-size: 15px;
  text-decoration: none;
  transition: all 0.2s ease;
  margin: 16px 0;
}

.download-btn:hover {
  background: #4F3959;
  color: white;
  transform: translateY(-1px);
}

body.dark .download-btn {
  background: #a88bc4;
  color: #1a1a1a;
}

body.dark .download-btn:hover {
  background: #c4a8d8;
}

/* 404 Error page */
.error-page {
  text-align: center;
  padding: 80px 20px;
}

.error-page h1 {
  font-size: 120px;
  background: linear-gradient(to right, #27232A, #785D8F);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0;
  border: none;
  padding: 0;
}

.error-subtitle {
  font-size: 24px;
  color: #27232A;
  margin-bottom: 16px;
}

.error-joke {
  font-size: 17px;
  color: #6b6574;
  margin-bottom: 40px;
}

.error-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Copy code button */
.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 4px 10px;
  font-size: 12px;
  background: #27232A;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.2s;
}

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

.copy-btn:hover {
  background: #785D8F;
}

/* Dark mode toggle */
.dark-toggle-label {
  display: flex;
  align-items: center;
  cursor: pointer;
}

.dark-toggle-label input {
  display: none;
}

.dark-toggle-label svg {
  width: 20px;
  height: 20px;
  color: #27232A;
}

.dark-toggle-label .icon-moon {
  display: none;
}

.dark-toggle-label:hover svg {
  color: #785D8F;
}

/* Dark mode styles */
body.dark {
  background: #1a1a1a;
  color: #e0e0e0;
}

body.dark .nav {
  background-color: rgba(26, 26, 26, 0.95);
}

body.dark .nav-logo {
  background: linear-gradient(to right, #e0e0e0, #a88bc4);
  -webkit-background-clip: text;
  background-clip: text;
}

body.dark .nav-links a {
  color: #e0e0e0;
}

body.dark .nav-links a:hover,
body.dark .nav-links a.active {
  color: #a88bc4;
}

body.dark .nav-links a.nav-brand {
  color: #a88bc4;
  border-color: #444;
}

body.dark .nav-links a.nav-brand:hover {
  background: #a88bc4;
  color: #1a1a1a;
}

body.dark .dark-toggle-label svg {
  color: #e0e0e0;
}

body.dark .dark-toggle-label .icon-sun {
  display: none;
}

body.dark .dark-toggle-label .icon-moon {
  display: block;
}

body.dark h1, body.dark h2, body.dark h3, body.dark h4 {
  color: #e0e0e0;
}

body.dark h1 {
  background: linear-gradient(to right, #e0e0e0, #a88bc4);
  -webkit-background-clip: text;
  background-clip: text;
  border-color: #333;
}

body.dark h2 {
  border-color: #333;
}

body.dark p, body.dark li {
  color: #b0b0b0;
}

body.dark strong {
  color: #e0e0e0;
}

body.dark a {
  color: #a88bc4;
}

body.dark a:hover {
  color: #c4a8d8;
}

body.dark code {
  background: #2a2a2a;
  color: #a88bc4;
}

body.dark pre {
  background: #2a2a2a;
  border-color: #333;
}

body.dark pre code {
  color: #e0e0e0;
}

body.dark blockquote {
  background: linear-gradient(135deg, rgba(168, 139, 196, 0.1), rgba(26, 26, 26, 0.5));
  border-color: #a88bc4;
}

body.dark blockquote p {
  color: #c4a8d8;
}

body.dark .toc {
  background: #2a2a2a;
  border-color: #333;
}

body.dark .toc-title {
  color: #888;
}

body.dark .toc a {
  color: #b0b0b0;
}

body.dark .toc a:hover {
  color: #a88bc4;
}

body.dark table {
  border-color: #333;
}

body.dark th {
  background: #2a2a2a;
  color: #e0e0e0;
}

body.dark td {
  border-color: #333;
  color: #b0b0b0;
}

body.dark hr {
  border-color: #333;
}

body.dark .footer {
  background: #2a2a2a;
  border-color: #333;
}

body.dark .footer-container,
body.dark .footer-container a {
  color: #888;
}

body.dark .footer-container a:hover {
  color: #a88bc4;
}

body.dark .template-item {
  background: #2a2a2a;
  border-color: #333;
}

body.dark .template-name {
  color: #e0e0e0;
}

body.dark .template-links a {
  color: #a88bc4;
}

body.dark .back-to-top {
  background: #e0e0e0;
  color: #1a1a1a;
}

body.dark .back-to-top:hover {
  background: #a88bc4;
}

body.dark .btn-primary {
  background: #e0e0e0;
  color: #1a1a1a;
}

body.dark .btn-primary:hover {
  background: #a88bc4;
}

body.dark .btn:not(.btn-primary) {
  background: #2a2a2a;
  color: #e0e0e0;
  border-color: #444;
}

body.dark .btn:not(.btn-primary):hover {
  background: #333;
  border-color: #a88bc4;
}

/* Reading time */
.reading-time {
  font-size: 14px;
  color: #6b6574;
  margin-bottom: 24px;
}

body.dark .reading-time {
  color: #888;
}

/* Details/Summary (collapsible FAQ sections) */
details.faq-item {
  background: #FFFFFF !important;
  border: 1px solid #E8E5EB !important;
  border-radius: 12px !important;
  margin-bottom: 16px !important;
  box-shadow: 0 2px 8px rgba(39, 35, 42, 0.06) !important;
  overflow: hidden !important;
}

details.faq-item[open] {
  border-color: #785D8F !important;
  box-shadow: 0 4px 12px rgba(120, 93, 143, 0.15) !important;
}

details.faq-item summary {
  padding: 18px 24px !important;
  cursor: pointer !important;
  font-weight: 600 !important;
  font-size: 16px !important;
  color: #27232A !important;
  list-style: none !important;
  display: block !important;
  background: #FAFAFA !important;
  margin: 0 !important;
}

details.faq-item summary::-webkit-details-marker {
  display: none !important;
}

details.faq-item summary::marker {
  display: none !important;
  content: "" !important;
}

details.faq-item summary:hover {
  background: #F0EDF3 !important;
}

details.faq-item[open] > summary {
  color: #785D8F !important;
  background: #F5F3F7 !important;
  border-bottom: 1px solid #E8E5EB !important;
}

details.faq-item .faq-answer {
  padding: 20px 24px 20px 28px !important;
  margin: 16px 20px 20px 20px !important;
  color: #4a4a4a !important;
  line-height: 1.8 !important;
  background: #FAFAFA !important;
  font-size: 15px !important;
  border-left: 3px solid #785D8F !important;
  border-radius: 0 8px 8px 0 !important;
}

details.faq-item .faq-answer code {
  background: #EDE9F0 !important;
  padding: 2px 8px !important;
  border-radius: 4px !important;
  font-size: 14px !important;
  color: #5a4a6a !important;
}

/* Dark mode FAQ */
body.dark details.faq-item {
  background: #1a1a1a !important;
  border-color: #333 !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3) !important;
}

body.dark details.faq-item[open] {
  border-color: #a88bc4 !important;
  box-shadow: 0 4px 12px rgba(168, 139, 196, 0.2) !important;
}

body.dark details.faq-item summary {
  color: #e0e0e0 !important;
  background: #222 !important;
}

body.dark details.faq-item summary:hover {
  background: #2a2a2a !important;
}

body.dark details.faq-item[open] > summary {
  color: #a88bc4 !important;
  background: #252525 !important;
  border-bottom-color: #333 !important;
}

body.dark details.faq-item .faq-answer {
  color: #c0c0c0 !important;
  background: #222 !important;
  border-left-color: #a88bc4 !important;
}

body.dark details.faq-item .faq-answer code {
  background: #333 !important;
  color: #c4a8d8 !important;
}

/* Print styles */
@media print {
  .nav,
  .back-to-top,
  .dark-toggle-label,
  .copy-btn,
  .footer-version {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
    font-size: 12pt;
    line-height: 1.5;
  }

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

  h1, h2, h3, h4 {
    color: black !important;
    background: none !important;
    -webkit-text-fill-color: black !important;
    page-break-after: avoid;
  }

  h1 {
    font-size: 24pt;
    border-bottom: 1px solid #ccc;
  }

  h2 {
    font-size: 18pt;
    border-bottom: 1px solid #eee;
  }

  p, li {
    color: black !important;
  }

  a {
    color: black !important;
    text-decoration: underline;
  }

  a[href^="http"]:after {
    content: " (" attr(href) ")";
    font-size: 10pt;
    color: #666;
  }

  pre, code {
    background: #f5f5f5 !important;
    border: 1px solid #ddd;
    page-break-inside: avoid;
  }

  blockquote {
    border-left: 2px solid #999;
    background: #f9f9f9 !important;
  }

  .toc {
    background: #f9f9f9 !important;
    border: 1px solid #ddd;
    page-break-inside: avoid;
  }

  .footer {
    border-top: 1px solid #ccc;
    background: none !important;
  }
}

/* Back to top button */
.back-to-top {
  position: fixed !important;
  bottom: 32px !important;
  right: 32px !important;
  left: auto !important;
  width: 44px !important;
  max-width: 44px !important;
  height: 44px !important;
  background: #27232A;
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(39, 35, 42, 0.15);
  z-index: 99;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: #785D8F;
  transform: translateY(-2px);
}

.back-to-top svg {
  width: 18px;
  height: 18px;
}

/* Responsive */
@media (max-width: 768px) {
  .nav {
    padding: 16px 24px;
    flex-direction: column;
    gap: 16px;
  }

  .nav-links {
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .main {
    padding: 32px 24px 60px;
  }

  h1 {
    font-size: 32px;
  }

  h2 {
    font-size: 24px;
    margin-top: 40px;
  }

  h3 {
    font-size: 19px;
  }

  p, li {
    font-size: 16px;
  }

  .footer-container {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 16px;
  }

  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 22px;
  }

  .btn:not(.back-to-top) {
    width: 100%;
    margin-right: 0;
  }

  .nav-links a.nav-brand {
    order: -1;
    width: 100%;
    text-align: center;
  }
}