/* ==========================================================================
   Zen Architecture v9 - Core Stylesheet
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Reset & Variables
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
}

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

html, body {
  margin: 0;
  padding: 0;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

:root {
  --mg-f-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mg-f-serif: var(--mg-f-sans);
  --mg-f-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --mg-w-black: 900;
  --mg-w-bold: 600;
  --mg-w-medium: 500;
  --mg-w-normal: 400;
  --mg-w-light: 300;

  --primary-color: rgb(221, 76, 79);
  --mg-t-p: #292524;
  --mg-t-s: #303030;
  --mg-border: #383838;
  --mg-bg-code: rgba(221, 76, 79, 0.2);
  --background: #f5f0eb;

  --content-max-width: 840px;
  --border-radius: 2px;
  --transition-duration: 0.3s;

  --mg-fs-p: 16px;
  --mg-fs-h2: 24px;
  --mg-fs-h3: 22px;
  --mg-fs-h4: 20px;
  --mg-fs-h5: 18px;
  --mg-fs-h6: 16px;
  --mg-fs-table: 14px;
  --mg-fs-code: 0.9em;
}

html.dark-theme {
  --primary-color: rgb(221, 76, 79);
  --mg-t-p: #d0cac4;
  --mg-t-s: #bcbcbc;
  --mg-border: #6d6d6d;
  --mg-bg-code: rgba(221, 76, 79, 0.5);
  --background: #0a0a0a;
}

body {
  font-family: var(--mg-f-serif);
  font-weight: var(--mg-w-normal);
  line-height: 1.64;
  -webkit-font-smoothing: antialiased;
  background-color: var(--background);
  color: var(--mg-t-p);
  transition: background-color var(--transition-duration);
}

@media (max-width: 768px) {
  :root {
    --mg-fs-p: 16px;
    --mg-fs-h2: 21px;
    --mg-fs-h3: 19px;
    --mg-fs-h4: 18px;
    --mg-fs-h5: 17px;
    --mg-fs-h6: 16px;
    --mg-fs-table: 14px;
    --mg-fs-code: 0.9em;
  }
  body {
    line-height: 1.55;
  }
}

/* --------------------------------------------------------------------------
   2. Layout & Typography
   -------------------------------------------------------------------------- */
.page-header {
  width: 100%;
  margin-block: 20px;
  box-sizing: border-box;
}

.header-inner {
  max-inline-size: var(--content-max-width);
  margin-inline: auto;
  padding-inline: 15px;
  display: flex;
  align-items: center;
  gap: 25px;
  width: 100%;
}

.page-header_title {
  flex: 1;
  min-inline-size: 0;
  font-size: min(6vw, 40px);
  font-family: var(--mg-f-serif);
  font-weight: var(--mg-w-black);
  margin: 0;
  color: var(--mg-t-p);
}

.page-header_title a {
  color: inherit;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 15px;
}

.nav-logo {
  height: 32px;
  width: auto;
  object-fit: contain;
  border-radius: 2px;
  aspect-ratio: 1 / 1;
}

@media (max-width: 768px) {
  .nav-logo {
    height: 30px;
  }
}

.page-footer {
  font-size: 12px;
  width: 100%;
  margin-block: 40px 30px;
  box-sizing: border-box;
  font-family: var(--mg-f-serif);
  color: var(--mg-t-s);
}

.footer-inner {
  max-inline-size: var(--content-max-width);
  margin-inline: auto;
  padding-inline: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

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

.footer-links a:hover {
  color: var(--primary-color);
}

.footer-links .underline {
  text-decoration: underline;
}

.back-to-top {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-duration);
  opacity: 0.8;
}

.back-to-top:hover {
  opacity: 1;
  transform: translateY(-3px);
}

/* --------------------------------------------------------------------------
   3. Theme Toggle & UI Components
   -------------------------------------------------------------------------- */
.theme-toggle {
  position: relative;
  display: flex;
  align-items: center;
}

.theme-toggle input {
  border: 0;
  clip: rect(0 0 0 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
}

.theme-toggle label {
  position: relative;
  display: block;
  width: 40px;
  height: 22px;
  border-radius: 12px;
  flex-shrink: 0;
  background-color: rgba(0, 0, 0, 0.1);
  cursor: pointer;
}

html.dark-theme .theme-toggle label {
  background-color: rgba(255, 255, 255, 0.15);
}

.theme-toggle_handle {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  border-radius: 18px;
  background-color: rgba(245, 240, 235, .86);
  transition: transform 0.2s ease;
}

html.dark-theme .theme-toggle_handle {
  background-color: rgba(0, 0, 0, .86);
}

.theme-toggle input:checked + label .theme-toggle_handle {
  transform: translate(18px);
}

.theme-toggle svg {
  position: absolute;
  fill: currentColor;
  top: 5px;
  width: 12px;
  height: 12px;
  z-index: 2;
  transition: color .15s linear;
  color: rgba(0, 0, 0, .82);
}

html.dark-theme .theme-toggle svg {
  color: rgba(255, 255, 255, .82);
}

.theme-toggle .sun { left: 5px; fill: none; stroke: currentColor; stroke-width: 1.5; }
.theme-toggle .moon { right: 5px; }

.search-button {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  color: var(--mg-t-p);
  transition: color var(--transition-duration);
  min-width: 30px;
  min-height: 30px;
}

.search-button:hover, .search-button.active {
  color: var(--primary-color);
}

.search-button svg { width: 20px; height: 20px; }

/* --------------------------------------------------------------------------
   4. Index & List Styles
   -------------------------------------------------------------------------- */
.content-list {
  max-inline-size: var(--content-max-width);
  margin-block: 20px;
  margin-inline: auto;
  padding-inline: 15px;
  width: 100%;
  list-style: none;
}

.content-item {
  margin-block: 15px;
}

.content-list-header {
  display: flex;
  align-items: center;
  gap: 15px;
}

.content-list-title {
  font-weight: var(--mg-w-normal);
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
  flex-shrink: 1;
  min-width: 0;
}

.content-list-title a {
  text-decoration: none;
  color: inherit;
}

.content-list-title a:hover {
  text-decoration: underline;
  text-decoration-color: var(--primary-color);
  text-underline-offset: 4px;
}

@media (max-width: 768px) {
  .content-list-title {
    font-size: 16px;
    line-height: 1.3;
  }
}

.content-time {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  font-family: var(--mg-f-mono);
  flex-shrink: 0;
  width: fit-content;
  line-height: 1.1;
}

.time-mmdd {
  font-size: 10px;
  font-weight: var(--mg-w-bold);
  display: block;
  text-align: center;
}

.time-yyyy {
  font-size: 10px;
  display: flex;
  justify-content: space-between;
  font-weight: var(--mg-w-normal);
}

/* --------------------------------------------------------------------------
   5. Content Pages (Article)
   -------------------------------------------------------------------------- */
.content-wrapper {
  max-inline-size: var(--content-max-width);
  margin-inline: auto;
  padding-inline: 15px;
  width: 100%;
}

.content-header {
  max-inline-size: var(--content-max-width);
  margin-block: 15px;
  margin-inline: auto;
}

.content-title {
  font-size: 28px;
  font-weight: var(--mg-w-bold);
  margin: 0;
  padding: 0;
  line-height: 1.4;
}

@media (max-width: 768px) {
  .content-title { font-size: 22px; }
}

.content-publish-time {
  color: var(--mg-t-s);
  font-size: 14px;
  font-weight: var(--mg-w-normal);
}

article {
  overflow-wrap: break-word;
  word-break: break-word;
}

article a {
  color: var(--mg-t-p);
  text-decoration-color: var(--primary-color);
}

article h1:not(.content-title), article h2, article h3, article h4, article h5, article h6 {
  max-inline-size: var(--content-max-width);
  margin-inline: auto;
  line-height: 1.3;
  color: var(--mg-t-p);
}

article h2 { margin-block-start: 1.5em; font-size: var(--mg-fs-h2); }
article h3 { margin-block-start: 1.4em; font-size: var(--mg-fs-h3); }
article h4 { margin-block-start: 1.3em; font-size: var(--mg-fs-h4); }
article h5 { margin-block-start: 1.25em; font-size: var(--mg-fs-h5); }
article h6 { margin-block-start: 1.2em; font-size: var(--mg-fs-h6); }

article p {
  max-inline-size: var(--content-max-width);
  margin-block: 1.1em;
  margin-inline: auto;
  font-size: var(--mg-fs-p);
  line-height: 1.7;
  color: var(--mg-t-p);
  text-align: justify;
}

article hr {
  max-inline-size: var(--content-max-width);
  margin-block: 40px;
  margin-inline: auto;
  border: none;
}

article hr::after {
  content: "";
  display: block;
  block-size: 1px;
  background-color: var(--mg-border);
}

article blockquote {
  max-inline-size: var(--content-max-width);
  margin-block: 15px;
  margin-inline: auto;
  position: relative;
  font-style: italic;
  color: var(--mg-t-s);
}

article blockquote::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  inline-size: 3px;
  block-size: 100%;
  background-color: var(--primary-color);
}

article blockquote p {
  font-size: var(--mg-fs-p);
  padding: 0;
  margin-inline-start: 20px;
}

article ul, article ol {
  max-inline-size: var(--content-max-width);
  padding-inline-start: 2em;
  margin-block: 15px;
  margin-inline: auto;
  color: var(--mg-t-p);
  font-size: var(--mg-fs-p);
  line-height: 1.5;
  text-align: justify;
}

article ul li::marker, article ol li::marker { color: var(--primary-color); }
article ul li, article ol li { margin-block: 5px; }
article li p { margin-block: 5px; padding-inline: 0; }

.table-container {
  max-inline-size: var(--content-max-width);
  margin-block: 15px;
  margin-inline: auto;
  overflow-x: auto;
}

article table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--mg-fs-table);
  color: var(--mg-t-p);
}

article table th, article table td {
  padding: 10px 14px;
  border: 1px solid var(--mg-border);
  text-align: left;
}

article table th { background-color: var(--mg-bg-code); font-weight: var(--mg-w-medium); }
article table tr:nth-child(even) { background-color: rgba(128, 128, 128, 0.05); }

.figure-img, .figure-media, .figure-iframe {
  max-inline-size: var(--content-max-width);
  margin-block: 15px;
  margin-inline: auto;
}

.figure-img img, .figure-media .media {
  display: block;
  max-inline-size: 100%;
  margin-inline: auto;
  border-radius: var(--border-radius);
}

html.dark-theme img { filter: brightness(0.85); transition: filter var(--transition-duration); }

.figure-iframe iframe:not([width]):not([height]) {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 320px;
  border: 1px solid var(--mg-border);
  border-radius: var(--border-radius);
}

.figure-iframe iframe[width], .figure-iframe iframe[height] {
  display: inline;
  border: none;
  border-radius: 0;
}

article figcaption {
  font-size: 12px;
  color: var(--mg-t-s);
  text-align: center;
  margin-block-start: 5px;
}

strong { font-weight: var(--mg-w-bold); }

.content-actions {
  max-inline-size: var(--content-max-width);
  display: flex;
  align-items: center;
  margin-block: 40px;
  margin-inline: auto;
  font-size: 14px;
}

.content-actions__item:not(:last-child)::after { content: "·\00a0"; }
.content-actions__item > a { color: inherit; text-decoration-color: var(--primary-color); }

@media (max-width: 520px) {
  .content-actions { flex-direction: column; align-items: flex-start; gap: 10px; }
  .content-actions__item:not(:last-child)::after { content: ""; }
}

/* --------------------------------------------------------------------------
   6. Code Rendering (Prism)
   -------------------------------------------------------------------------- */
article pre[class*="language-"] {
  background: #1a1a1a !important;
  border: 1px solid var(--mg-border);
  border-radius: 5px;
  padding: 0.5em;
  margin-block: 1.5em;
  width: 100%;
  overflow: auto;
  font-family: var(--mg-f-mono);
  font-size: var(--mg-fs-code);
  line-height: 1.5;
}

article pre[class*="language-"] code {
  font-size: 1em;
  color: #f8f8f2;
  text-shadow: none !important;
  background: transparent;
}

article :not(pre) > code {
  font-family: var(--mg-f-mono);
  font-size: 0.85em;
  background-color: var(--mg-bg-code);
  color: var(--mg-t-p);
  padding: 0.1em 0.3em;
  border-radius: 2px;
}

pre[class*="language-"]::-webkit-scrollbar { height: 4px; width: 4px; }
pre[class*="language-"]::-webkit-scrollbar-thumb { background: rgba(128, 128, 128, 0.2); border-radius: 10px; }
pre[class*="language-"]::-webkit-scrollbar-thumb:hover { background: rgba(128, 128, 128, 0.4); }

.token.comment, .token.prolog, .token.doctype, .token.cdata { color: #8292a2; }
.token.punctuation { color: #f8f8f2; }
.token.property, .token.tag, .token.constant, .token.symbol, .token.deleted { color: #f92672; }
.token.boolean, .token.number { color: #ae81ff; }
.token.selector, .token.attr-name, .token.string, .token.char, .token.builtin, .token.inserted { color: #a6e22e; }
.token.operator, .token.entity, .token.url, .token.variable { color: #f8f8f2; }
.token.atrule, .token.attr-value, .token.function, .token.class-name { color: #e6db74; }
.token.keyword { color: #66d9ef; }
.token.regex, .token.important { color: #fd971f; }
.token.bold { font-weight: var(--mg-w-bold); }
.token.italic { font-style: italic; }

/* --------------------------------------------------------------------------
   7. TOC (Table of Contents)
   -------------------------------------------------------------------------- */
.toc-container {
  position: fixed;
  left: calc(50% + 430px);
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  width: 180px;
  z-index: 1000;
  pointer-events: none;
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
  transform: translateX(10px) scale(0.98);
  pointer-events: auto;
}

.toc-container:hover .toc-list {
  opacity: 1; visibility: visible; transform: translateX(0) scale(1);
}

.desktop-toc-dots {
  position: absolute;
  left: 0;
  width: 30px;
  height: 50px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  transition: all 0.3s ease;
  pointer-events: auto;
  cursor: pointer;
}

.toc-container:hover .desktop-toc-dots { opacity: 0; visibility: hidden; }

.toc-link {
  display: block;
  color: var(--mg-t-s);
  text-decoration: none;
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 12em;
  transition: all 0.2s ease;
}

.toc-item.is-active .toc-link, .toc-link:hover { color: var(--primary-color) !important; font-weight: 500; opacity: 1 !important; }

.toc-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--mg-t-p);
  opacity: 0.3;
  transition: all 0.1s ease;
}

.toc-dot.is-active { background: var(--primary-color); opacity: 1; box-shadow: 0 0 8px rgba(221, 76, 79, 0.7); }

.mobile-toc-trigger {
  display: none;
  position: fixed;
  right: 0; top: 50%;
  transform: translateY(-50%);
  width: 44px; height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  padding-right: 6px;
  gap: 6px;
  z-index: 1500;
  cursor: pointer;
}

.mobile-toc-overlay {
  position: fixed;
  inset: 0;
  background: rgb(255, 255, 255);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  opacity: 0; visibility: hidden;
  transition: all 0.3s ease;
  overscroll-behavior: contain;
}

html.dark-theme .mobile-toc-overlay { background: rgb(0, 0, 0); }
.mobile-toc-overlay.is-open { opacity: 1; visibility: visible; }
body.lock-scroll { overflow: hidden; }

.mobile-toc-dial {
  width: 100%; height: 100%;
  overflow-y: auto; overflow-x: hidden;
  padding: 20px 30px 100px;
  box-sizing: border-box;
  scrollbar-width: none;
}

.mobile-toc-dial::-webkit-scrollbar { display: none; }

.mobile-toc-item { min-height: 26px; display: flex; width: 100%; }

.mobile-toc-link {
  color: var(--mg-t-p); opacity: 0.7; text-decoration: none; font-size: 14px;
  word-break: break-all; overflow-wrap: break-word; width: 100%;
}

.mobile-toc-item.is-active .mobile-toc-link { color: var(--primary-color); opacity: 1; font-weight: 500; }

@media (max-width: 1250px) {
  .toc-container { display: none; }
  .mobile-toc-trigger { display: flex; }
}

/* --------------------------------------------------------------------------
   8. Search Page
   -------------------------------------------------------------------------- */
.search-container { max-inline-size: var(--content-max-width); margin-block: 40px; margin-inline: auto; padding-inline: 15px; }
.search-input { width: 100%; padding: 15px 20px; font-size: 16px; border: 2px solid var(--mg-border); border-radius: 8px; background-color: var(--background); }
.search-input:focus { outline: none; border-color: var(--primary-color); }
.search-results { margin-top: 30px; }
#searchResults { padding: 0; margin: 0; }
.search-result-item { list-style: none; margin-block: 10px; padding: 10px; border-radius: 8px; transition: background-color var(--transition-duration); }
.search-result-item:hover { background-color: var(--mg-bg-code); }
.search-result-title { font-weight: var(--mg-w-bold); margin: 0; font-size: 16px; line-height: 1.3; }
.search-result-title a { text-decoration: none; color: inherit; }
.search-result-description { margin-top: 8px; font-size: 14px; color: var(--mg-t-s); line-height: 1.5; }
.search-result-time { display: inline-block; font-size: 12px; color: var(--mg-t-s); }
.no-results { text-align: center; color: var(--mg-t-s); margin-top: 60px; }
.search-highlight { background-color: var(--mg-bg-code); color: inherit; padding: 1px 2px; border-radius: 2px; }
.keywords-area { margin-top: 30px; margin-bottom: 20px; }
.keywords-list { display: flex; flex-wrap: wrap; gap: 15px 10px; align-items: center; }
.keyword-tag { font-size: 14px; color: var(--mg-t-p); cursor: pointer; transition: color var(--transition-duration); }
.keyword-tag:hover, .keyword-tag.active { color: var(--primary-color); font-weight: var(--mg-w-bold); }
.keyword-tag.hidden { display: none; }