@import url("https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400;1,600&family=JetBrains+Mono:ital,wght@0,400;0,500;0,600;1,400&family=Lora:ital,wght@0,400;0,500;0,600;1,400;1,500&display=swap");

:root {
  color-scheme: light;
  --page: #fbfbfa;
  --text: #202222;
  --muted: #727775;
  --line: #dadeda;
  --accent: #197d70;
  --sans: "Be Vietnam Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --serif: "Lora", "Georgia", "Times New Roman", serif;
  --mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #171918;
  --text: #eeefec;
  --muted: #9b9f9c;
  --line: #343735;
  --accent: #71cabe;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-width: 0;
  min-height: 100vh;
  margin: 0;
  overflow-x: clip;
  color: var(--text);
  background: var(--page);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.72;
  transition: color 180ms ease, background-color 180ms ease;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img, svg { display: block; max-width: 100%; }
::selection { color: var(--page); background: var(--text); }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 8px 12px;
  color: var(--page);
  background: var(--text);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-shell { min-height: 100vh; }
.site-header { padding: 32px 0 16px; }
.header-inner {
  width: min(960px, calc(100% - 48px));
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  margin: 0 auto;
}
.brand {
  font-size: 14.5px;
  font-weight: 680;
  letter-spacing: -.02em;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 22px;
}
.main-nav a {
  color: var(--muted);
  font-size: 13px;
  transition: color 150ms ease;
}
.main-nav a:hover,
.main-nav a[aria-current="page"] { color: var(--accent); }
.main-nav a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}
.header-tools { display: flex; align-items: center; gap: 7px; }
.theme-toggle,
.menu-toggle {
  display: grid;
  place-items: center;
  padding: 0;
  border-radius: 50%;
  cursor: pointer;
}
.theme-toggle {
  width: 34px;
  min-width: 34px;
  max-width: 34px;
  height: 34px;
  min-height: 34px;
  max-height: 34px;
  aspect-ratio: 1;
  flex: 0 0 34px;
  overflow: hidden;
  border: 1px solid var(--text);
  color: var(--page);
  background: var(--text);
  line-height: 0;
  transition: opacity 150ms ease, color 180ms ease, background-color 180ms ease;
}
.theme-toggle:hover { opacity: .72; }
.theme-toggle svg { width: 13px; height: 13px; }
.menu-toggle {
  width: 32px;
  height: 32px;
  display: none;
  border: 1px solid var(--line);
  color: var(--text);
  background: transparent;
}
.menu-icon { position: relative; width: 14px; height: 10px; }
.menu-icon::before,
.menu-icon::after,
.menu-icon span {
  content: "";
  position: absolute;
  left: 0;
  width: 14px;
  height: 1px;
  background: currentColor;
  transition: transform 180ms ease, top 180ms ease, opacity 180ms ease;
}
.menu-icon::before { top: 0; }
.menu-icon span { top: 4.5px; }
.menu-icon::after { top: 9px; }
.menu-toggle[aria-expanded="true"] .menu-icon::before { top: 4.5px; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-icon span { opacity: 0; }
.menu-toggle[aria-expanded="true"] .menu-icon::after { top: 4.5px; transform: rotate(-45deg); }

.container { width: min(960px, calc(100% - 48px)); margin: 0 auto; }
.intro {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 82px 0 56px;
}
.overline {
  margin: 0 0 8px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
}
.intro h1,
.page-intro h1 {
  margin: 0;
  font-weight: 690;
  line-height: 1.14;
  letter-spacing: -.045em;
}
.intro h1 { font-size: clamp(34px, 5.5vw, 46px); }
.role { margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.avatar {
  width: 104px;
  height: 104px;
  flex: 0 0 auto;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 18%;
  filter: saturate(.78) contrast(1.04);
}
.page-intro { padding: 82px 0 54px; }
.page-intro h1 { max-width: 800px; font-size: clamp(36px, 5.5vw, 48px); line-height: 1.12; letter-spacing: -.047em; }
.page-intro > p:last-child { max-width: 760px; margin: 18px 0 0; color: var(--muted); font-size: 15.5px; line-height: 1.7; }

.section { padding: 36px 0; }
.section h2 {
  width: max-content;
  max-width: 100%;
  margin: 0 0 18px;
  padding-bottom: 2px;
  border-bottom: 3px solid color-mix(in srgb, var(--text) 24%, transparent);
  font-size: 18px;
  font-weight: 680;
  line-height: 1.4;
  letter-spacing: -.02em;
}
.prose { max-width: 840px; margin: 0; font-size: 15px; line-height: 1.75; }
.prose p { margin: 0 0 14px; }
.prose p:last-child { margin-bottom: 0; }
.prose a { color: var(--accent); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.prose a:hover { color: var(--text); }
.inline-links { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 20px; }
.inline-links a,
.work-list a,
.work-list em {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--accent);
  font-size: 13px;
}
.inline-links a:hover,
.work-list a:hover { text-decoration: underline; text-underline-offset: 4px; }
.arrow { font-size: .95em; line-height: 1; }
.reach { padding-bottom: 50px; }

.year-list { margin-top: 4px; }
.year-list > div { display: grid; grid-template-columns: 110px 1fr; gap: 24px; padding: 11px 0; }
.year-list time,
.work-list time,
.timeline-list time,
.research-list article > span,
.writing-list article > span,
.library-list > div > span,
.paper-list > a > span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  text-transform: uppercase;
}
.year-list p { margin: 0; font-size: 14.5px; line-height: 1.65; }
.year-list strong { font-weight: 640; }

.research-list,
.work-list,
.paper-list,
.timeline-list,
.library-list,
.writing-list { border-top: 1px solid var(--line); }
.research-list article,
.writing-list article {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}
.research-list small,
.writing-list small,
.timeline-list small {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 8px;
  text-transform: uppercase;
}
.research-list h3,
.writing-list h3 {
  margin: 5px 0 8px;
  font-size: 17.5px;
  font-weight: 640;
  line-height: 1.45;
  letter-spacing: -.02em;
}
.research-list p,
.writing-list p { margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.6; }
.writing-list em {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
  font-style: normal;
  text-transform: uppercase;
}
.work-list > article {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 28px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}
.work-list h3,
.paper-list h3,
.timeline-list h3,
.library-list h3 {
  margin: 0;
  font-size: 16.5px;
  font-weight: 650;
  line-height: 1.45;
  letter-spacing: -.02em;
}
.work-list p { margin: 7px 0 10px; color: var(--muted); font-size: 13.5px; line-height: 1.6; }
.work-list small {
  display: block;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
  text-transform: uppercase;
}
.work-list a,
.work-list em { width: max-content; max-width: 100%; margin-top: 12px; font-size: 12px; font-style: normal; }
.paper-list > a {
  display: grid;
  grid-template-columns: 46px 1fr 18px;
  align-items: center;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  transition: color 150ms ease;
}
.paper-list > a:hover { color: var(--accent); }
.paper-list p,
.timeline-list p,
.library-list p { margin: 4px 0 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.paper-list .arrow { justify-self: end; }
.publication-note { margin: 18px 0 0; color: var(--muted); font-size: 12.5px; line-height: 1.65; }
.book-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 36px 26px; }
.book-card { min-width: 0; display: flex; flex-direction: column; }
.book-cover { aspect-ratio: 595 / 842; overflow: hidden; border: 1px solid var(--line); background: color-mix(in srgb, var(--line) 28%, var(--page)); }
.book-cover img { width: 100%; height: 100%; display: block; object-fit: cover; transition: transform 220ms ease, opacity 220ms ease; }
.book-card:hover .book-cover img { transform: scale(1.012); opacity: .88; }
.book-meta { margin: 13px 0 5px; color: var(--accent); font-family: var(--mono); font-size: 8px; line-height: 1.6; text-transform: uppercase; }
.book-card h3 { margin: 0; font-size: 16px; font-weight: 660; line-height: 1.4; letter-spacing: -.025em; }
.book-subtitle { margin: 5px 0 0; color: var(--text); font-family: Georgia, "Times New Roman", serif; font-size: 13px; line-height: 1.5; }
.book-detail { margin: 8px 0 0; color: var(--muted); font-size: 12px; line-height: 1.55; }
.book-action { display: inline-flex; align-items: center; gap: 5px; margin-top: 12px; color: var(--accent); font-size: 12px; }
.book-card:hover .book-action { text-decoration: underline; text-underline-offset: 4px; }
.timeline-list > div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 28px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.timeline-list h3 { margin-top: 4px; font-size: 15px; }

.library-list > div {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.heading-row { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: 16px; }
.heading-row h2 { margin-bottom: 0; }
.heading-row > span { color: var(--muted); font-family: var(--mono); font-size: 8px; text-transform: uppercase; }

.writing-index { border-top: 1px solid var(--line); }
.writing-card {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  transition: color 180ms ease;
}
.writing-card::before {
  content: "";
  position: absolute;
  inset: 7px -13px;
  z-index: 0;
  border-radius: 7px;
  background: color-mix(in srgb, var(--accent) 7%, transparent);
  opacity: 0;
  transition: opacity 180ms ease;
}
.writing-card > * { position: relative; z-index: 1; }
.writing-card:hover::before { opacity: 1; }
.writing-card-index { color: var(--muted); font-family: var(--mono); font-size: 9px; }
.writing-card-media,
.article-cover,
.article-figure { margin: 0; overflow: hidden; background: color-mix(in srgb, var(--line) 42%, transparent); }
.writing-card-media { position: relative; aspect-ratio: 4 / 3; }
.writing-card-media img,
.article-cover img,
.article-figure img { width: 100%; height: 100%; object-fit: cover; }
.writing-card-media.is-placeholder {
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: transparent;
}
.writing-image-placeholder {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
}
.writing-card-content { min-width: 0; display: flex; flex-direction: column; }
.writing-card-eyebrow { display: flex; justify-content: space-between; gap: 14px; color: var(--accent); font-family: var(--mono); font-size: 8px; text-transform: uppercase; }
.writing-card-eyebrow span:last-child { color: var(--muted); }
.writing-card h3 { margin: 5px 0 8px; font-size: 17.5px; font-weight: 640; line-height: 1.45; letter-spacing: -.02em; }
.writing-card p { margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.65; }
.writing-card-footer { display: flex; align-items: end; gap: 16px; margin-top: auto; padding-top: 10px; color: var(--muted); font-family: var(--mono); font-size: 7px; text-transform: uppercase; }
.writing-card-footer strong { display: inline-flex; align-items: center; gap: 5px; color: var(--accent); font-family: var(--sans); font-size: 11px; font-weight: 600; text-transform: none; white-space: nowrap; }
.writing-card:hover h3 { color: var(--accent); }
.writing-card:hover .writing-card-media img { transform: scale(1.018); }
.writing-card-media img { transition: transform 320ms ease; }
.writing-notice { margin: 20px 0; color: var(--muted); }

.article-container { width: min(840px, calc(100% - 48px)); }
.writing-back,
.writing-back-inline { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-size: 11px; }
.writing-back:hover,
.writing-back-inline:hover { color: var(--accent); }
.writing-article { padding: 60px 0 68px; }
.writing-article-toolbar { min-height: 34px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.writing-language-control { display: inline-flex; align-items: center; color: var(--muted); font-family: var(--mono); }
.writing-language-toggle { display: inline-grid; grid-template-columns: repeat(2, 1fr); padding: 2px; border: 1px solid var(--line); border-radius: 999px; background: color-mix(in srgb, var(--line) 18%, transparent); }
.writing-language-toggle button { min-width: 35px; height: 27px; padding: 0 9px; border: 0; border-radius: 999px; color: var(--muted); background: transparent; font: 700 8px/1 var(--mono); letter-spacing: .06em; cursor: pointer; transition: color 150ms ease, background 150ms ease, box-shadow 150ms ease; }
.writing-language-toggle button[aria-pressed="true"] { color: var(--page); background: var(--text); box-shadow: 0 1px 4px color-mix(in srgb, var(--text) 20%, transparent); }
.writing-language-toggle button:disabled { opacity: .35; cursor: not-allowed; }
.writing-article-header { padding: 68px 0 46px; border-bottom: 1px solid var(--line); }
.writing-article-header .overline { margin-bottom: 15px; }
.writing-article-header h1,
.writing-empty h1 { max-width: 780px; margin: 0; font-family: var(--serif); font-size: clamp(38px, 6vw, 54px); font-weight: 600; line-height: 1.12; letter-spacing: -.03em; }
.writing-lead { max-width: 760px; margin: 22px 0 0; color: var(--muted); font-size: 18px; line-height: 1.7; }
.writing-meta { display: flex; align-items: center; justify-content: space-between; gap: 22px; margin-top: 28px; color: var(--muted); font-family: var(--mono); font-size: 9px; line-height: 1.5; text-transform: uppercase; }
.writing-meta span:last-child { flex: 0 0 auto; }
.article-cover { aspect-ratio: 16 / 9; margin-top: 36px; border-radius: 8px; overflow: hidden; border: 1px solid var(--line); }
.article-cover img { width: 100%; height: 100%; object-fit: cover; }
.writing-body { max-width: 760px; margin: 0 auto; padding: 54px 0 32px; font-family: var(--sans); font-size: 16.5px; line-height: 1.88; letter-spacing: -.003em; }
.writing-body > p { margin: 0 0 1.65em; text-align: justify; text-justify: inter-word; hyphens: auto; }
.writing-body > p:first-child { color: color-mix(in srgb, var(--text) 82%, var(--muted)); font-size: 1.05em; }
.writing-body > h1,
.writing-body > h2,
.writing-body > h3,
.writing-body > h4,
.writing-body > h5,
.writing-body > h6 { margin: 48px 0 18px; font-family: var(--sans); font-weight: 680; line-height: 1.3; letter-spacing: -.025em; }
.writing-body > h1 { font-size: 26px; }
.writing-body > h2 { font-size: 24px; }
.writing-body > h3 { font-size: 21px; }
.writing-body > h4,
.writing-body > h5,
.writing-body > h6 { font-size: 18px; }
.writing-body a { color: var(--accent); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.writing-body a:hover { color: var(--text); }
.writing-body em { font-style: italic; }
.writing-body strong { color: var(--text); font-weight: 700; }
.writing-body del { color: var(--muted); }
.writing-body > ul,
.writing-body > ol { margin: 0 0 24px; padding-left: 24px; }
.writing-body li { margin-bottom: 7px; }
.writing-body li > ul,
.writing-body li > ol { margin: 7px 0 0; }
.writing-body blockquote { margin: 38px 0; padding: 4px 0 4px 22px; border-left: 2px solid var(--accent); color: color-mix(in srgb, var(--text) 82%, var(--muted)); font-style: italic; }
.writing-body blockquote p { margin: 0 0 1em; }
.writing-body blockquote p:last-child { margin-bottom: 0; }
.writing-body blockquote cite { display: block; margin-top: 12px; color: var(--muted); font-family: var(--mono); font-size: 8px; font-style: normal; text-transform: uppercase; }

/* Code Blocks & Terminal */
.code-block-container {
  margin: 34px 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: color-mix(in srgb, var(--line) 20%, var(--page));
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.03);
}
.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: color-mix(in srgb, var(--line) 38%, var(--page));
  border-bottom: 1px solid var(--line);
  user-select: none;
}
.code-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.code-header-dots {
  display: inline-flex;
  gap: 6px;
}
.code-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}
.code-dot.red { background: #ff5f56; }
.code-dot.yellow { background: #ffbd2e; }
.code-dot.green { background: #27c93f; }
.code-lang-badge {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.code-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 4px;
  cursor: pointer;
  transition: all 160ms ease;
}
.code-copy-btn:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--line) 30%, transparent);
  border-color: color-mix(in srgb, var(--text) 30%, var(--line));
}
.code-copy-btn.is-copied {
  color: var(--accent);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}
.writing-body pre {
  margin: 0;
  max-width: 100%;
  overflow-x: auto;
  padding: 18px 20px;
  background: transparent;
  border: none;
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.75;
}
.writing-body pre code {
  font-family: inherit;
  font-size: inherit;
  background: transparent;
  padding: 0;
  border: none;
  white-space: pre;
}
.writing-body :not(pre) > code {
  padding: 2px 6px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: color-mix(in srgb, var(--line) 30%, transparent);
  color: var(--accent);
  font-family: var(--mono);
  font-size: .86em;
}

/* Syntax Highlighting Tokens */
.token-comment { color: #8a908d; font-style: italic; }
.token-string { color: #2e8b57; }
.token-keyword { color: #d63384; font-weight: 600; }
.token-function { color: #0d6efd; font-weight: 500; }
.token-number { color: #d97706; }
.token-boolean { color: #7c3aed; }
.token-decorator { color: #0284c7; }

:root[data-theme="dark"] .token-comment { color: #7e8784; }
:root[data-theme="dark"] .token-string { color: #7ee787; }
:root[data-theme="dark"] .token-keyword { color: #ff7b72; }
:root[data-theme="dark"] .token-function { color: #79c0ff; }
:root[data-theme="dark"] .token-number { color: #ffa657; }
:root[data-theme="dark"] .token-boolean { color: #d2a8ff; }
:root[data-theme="dark"] .token-decorator { color: #56d4dd; }

/* Article Figures & Images */
.article-figure {
  margin: 36px 0;
  text-align: center;
}
.article-figure-inner {
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--line) 20%, var(--page));
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}
.article-figure img,
.writing-body img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
  transition: transform 240ms ease;
}
.article-figure-inner:hover img {
  transform: scale(1.008);
}
.article-figure figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 13px;
  font-style: italic;
  line-height: 1.5;
  text-align: center;
}

/* Image Gallery (side-by-side) */
.article-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin: 34px 0;
}
@media (max-width: 600px) {
  .article-gallery {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

/* Callout blocks */
.callout {
  margin: 32px 0;
  padding: 16px 20px;
  border-radius: 8px;
  border-left: 4px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 7%, transparent);
}
.callout-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--accent);
}
.callout-body {
  font-size: 15px;
  line-height: 1.7;
}
.callout-body p:last-child {
  margin-bottom: 0;
}
.callout-tip {
  border-left-color: #2e8b57;
  background: color-mix(in srgb, #2e8b57 7%, transparent);
}
.callout-tip .callout-header { color: #2e8b57; }
.callout-warning {
  border-left-color: #d97706;
  background: color-mix(in srgb, #d97706 7%, transparent);
}
.callout-warning .callout-header { color: #d97706; }

/* Table Wrapper */
.table-scroll-wrapper {
  max-width: 100%;
  overflow-x: auto;
  margin: 32px 0;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.table-scroll-wrapper table {
  margin: 0;
  width: 100%;
  border: none;
}
.writing-body hr { height: 1px; margin: 44px 0; border: 0; background: var(--line); }
.writing-body table { width: 100%; margin: 30px 0; border-collapse: collapse; font-family: var(--sans); font-size: 14px; line-height: 1.55; }
.writing-body th,
.writing-body td { padding: 9px 11px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.writing-body th { background: color-mix(in srgb, var(--line) 22%, transparent); font-weight: 680; }
.writing-body .contains-task-list { padding-left: 0; list-style: none; }
.writing-body .task-list-item input { margin: 0 8px 0 0; accent-color: var(--accent); }
.writing-draft-note { padding: 24px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.writing-draft-note strong { font-size: 17px; }
.writing-draft-note p { margin: 8px 0 0; color: var(--muted); font-size: 14px; }
.writing-article-end { width: min(760px, 100%); min-height: 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; margin: 0 auto; padding: 22px 0 40px; border-top: 1px solid var(--line); border-radius: 0; color: var(--muted); background: transparent; box-shadow: none; font-family: var(--mono); font-size: 8px; text-transform: uppercase; }
.writing-article-end a { color: var(--accent); }
.writing-neighbors { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.writing-neighbors > a { min-width: 0; padding: 22px 18px 24px 0; }
.writing-neighbors > a + a { padding-right: 0; padding-left: 18px; border-left: 1px solid var(--line); text-align: right; }
.writing-neighbors small { display: block; margin-bottom: 8px; color: var(--accent); font-family: var(--mono); font-size: 8px; text-transform: uppercase; }
.writing-neighbors strong { display: block; overflow: hidden; font-family: Georgia, "Times New Roman", serif; font-size: 14px; font-weight: 500; line-height: 1.4; text-overflow: ellipsis; }
.writing-neighbors a:hover strong { color: var(--accent); }
.writing-empty { padding: 30px 0; }
.writing-empty > p:not(.overline) { margin: 20px 0; color: var(--muted); }

.site-footer {
  position: relative;
  z-index: 0;
  padding: 44px 0 40px;
  color: var(--text);
}
.site-footer::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  border-top: 1px solid var(--line);
  background: var(--page);
  box-shadow: 0 0 0 100vmax var(--page);
  clip-path: inset(0 -100vmax);
}
.footer-main { display: grid; grid-template-columns: 1fr auto; align-items: start; gap: 32px; padding-bottom: 26px; }
.footer-identity strong { display: block; font-size: 14.5px; font-weight: 670; letter-spacing: -.02em; }
.footer-identity span { display: block; margin-top: 3px; color: var(--muted); font-size: 11px; }
.footer-contact { min-width: 0; text-align: right; }
.footer-contact > span,
.footer-links a > span {
  display: block;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
  text-transform: uppercase;
}
.footer-contact a { max-width: 100%; display: inline-flex; align-items: center; gap: 5px; margin-top: 4px; font-size: 12.5px; font-weight: 600; overflow-wrap: anywhere; }
.footer-contact a:hover,
.footer-links a:hover { opacity: .58; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.footer-links a { display: grid; grid-template-columns: 1fr 14px; gap: 4px 10px; min-width: 0; padding: 14px 18px; border-right: 1px solid var(--line); transition: opacity 150ms ease; }
.footer-links a:first-child { padding-left: 0; }
.footer-links a:last-child { padding-right: 0; border-right: 0; }
.footer-links a strong { grid-column: 1; min-width: 0; overflow: hidden; font-size: 10px; font-weight: 560; text-overflow: ellipsis; white-space: nowrap; }
.footer-links a > .arrow { grid-column: 2; grid-row: 1 / span 2; align-self: center; justify-self: end; }
.orcid-mark {
  width: 14px;
  height: 14px;
  display: inline-grid;
  place-items: center;
  margin-right: 6px;
  border-radius: 50%;
  color: var(--page);
  background: var(--text);
  font-family: Arial, sans-serif;
  font-size: 6px;
  font-style: normal;
  font-weight: 700;
  letter-spacing: -.08em;
  vertical-align: -2px;
}
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 22px; margin-top: 17px; color: var(--muted); font-size: 8px; line-height: 1.5; }
.brainmade { display: flex; align-items: center; opacity: .66; transition: opacity 150ms ease; }
.brainmade:hover { opacity: 1; }
.brainmade img { width: 62px; height: auto; filter: brightness(0); }
:root[data-theme="dark"] .brainmade img { filter: brightness(0) invert(1); }

a:focus-visible,
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.page-content { opacity: 1; transform: none; }
.js .page-content { opacity: 0; transform: translateY(7px); }
.js .is-ready .page-content { opacity: 1; transform: none; transition: opacity 360ms ease, transform 360ms ease; }
.js .is-leaving .page-content { opacity: 0; transform: translateY(-4px); transition-duration: 140ms; }

@media (max-width: 860px) {
  .book-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px 20px; }
}

@media (max-width: 760px) {
  .site-header { padding-top: 22px; }
  .header-inner,
  .container { width: min(100% - 32px, 720px); }
  .header-inner { gap: 12px; }
  .main-nav {
    position: absolute;
    z-index: 30;
    top: 66px;
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 12px 16px;
    border: 1px solid var(--line);
    background: var(--page);
  }
  .main-nav.is-open { display: flex; }
  .main-nav a { width: 100%; padding: 8px 0; }
  .menu-toggle { display: grid; }
  .intro,
  .page-intro { padding-top: 58px; }
  .article-container { width: min(100% - 32px, 720px); }
}

@media (max-width: 520px) {
  .book-grid { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 440px) {
  .intro { align-items: flex-end; gap: 18px; }
  .intro h1 { font-size: 31px; }
  .avatar { width: 76px; height: 76px; }
  .role { max-width: 220px; }
  .year-list > div,
  .work-list > article,
  .timeline-list > div { grid-template-columns: 72px 1fr; gap: 12px; }
  .research-list article,
  .writing-list article,
  .library-list > div { grid-template-columns: 28px 1fr; gap: 12px; }
  .heading-row { align-items: flex-start; flex-direction: column; gap: 7px; }
  .book-grid { grid-template-columns: 1fr; gap: 34px; }
  .writing-card { grid-template-columns: 28px 1fr; gap: 12px; }
  .writing-card-eyebrow { align-items: flex-start; flex-direction: column; gap: 5px; }
  .writing-article { padding-top: 42px; }
  .writing-article-header { padding: 44px 0 35px; }
  .writing-article-header h1 { font-size: 36px; }
  .writing-meta { align-items: flex-start; flex-direction: column; gap: 8px; }
  .writing-lead { font-size: 15px; }
  .writing-body { margin-top: 0; padding-top: 38px; font-size: 17px; line-height: 1.82; }
  .writing-body > h1,
  .writing-body > h2,
  .writing-body > h3,
  .writing-body > h4,
  .writing-body > h5,
  .writing-body > h6 { margin-top: 42px; }
  .writing-body > h1 { font-size: 23px; }
  .writing-body > h2 { font-size: 21px; }
  .writing-body > h3 { font-size: 19px; }
  .writing-body blockquote { padding-left: 17px; }
  .writing-body table { font-size: 13px; }
  .writing-article-end { align-items: flex-start; flex-direction: column; }
  .site-footer { padding-top: 34px; }
  .footer-main { grid-template-columns: 1fr; gap: 17px; }
  .footer-contact { text-align: left; }
  .footer-links { grid-template-columns: 1fr; }
  .footer-links a,
  .footer-links a:first-child,
  .footer-links a:last-child { padding: 11px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .footer-links a:last-child { border-bottom: 0; }
  .footer-links a strong { overflow: visible; text-overflow: clip; white-space: normal; overflow-wrap: anywhere; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: 14px; }
}

/* ==========================================================================
   ENHANCED RESEARCH WORKS (Studies, Papers, Code & Explanations)
   ========================================================================== */
.research-works-list {
  border-top: 1px solid var(--line);
  margin-top: 8px;
}
.research-work-card {
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  transition: border-color 180ms ease;
}
.research-work-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}
.research-work-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.research-status {
  display: inline-block;
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 3px 8px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
}
.research-period {
  font-family: var(--mono);
  font-size: 8px;
  color: var(--muted);
}
.research-work-title {
  margin: 0;
  font-size: 19px;
  font-weight: 680;
  letter-spacing: -.02em;
  line-height: 1.35;
}
.research-work-abstract {
  margin: 0 0 16px;
  color: var(--text);
  font-size: 14.5px;
  line-height: 1.68;
}
.research-explanation {
  margin: 16px 0;
  padding: 14px 18px;
  border-left: 3px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, var(--page));
  border-radius: 0 6px 6px 0;
  font-size: 13.5px;
  line-height: 1.65;
}
.research-explanation strong {
  display: block;
  margin-bottom: 6px;
  color: var(--accent);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .04em;
  font-family: var(--mono);
}
.research-explanation p {
  margin: 0;
  color: var(--text);
}
.research-work-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}
.research-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag-badge {
  font-family: var(--mono);
  font-size: 7.5px;
  padding: 2px 7px;
  border-radius: 4px;
  background: color-mix(in srgb, var(--line) 35%, transparent);
  color: var(--muted);
}
.research-links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.research-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  transition: opacity 150ms ease;
}
.research-link-btn:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ==========================================================================
   ENHANCED VISUAL LIBRARY (Covers, Reflections & Reading Space)
   ========================================================================== */
.section-lead {
  color: var(--muted);
  font-size: 14px;
  margin: -6px 0 24px;
  line-height: 1.6;
}
.library-shelf-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}
.library-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--line) 10%, var(--page));
  overflow: hidden;
  transition: transform 180ms ease, border-color 180ms ease;
}
.library-card:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
  transform: translateY(-2px);
}
.library-cover-wrap {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: #0d0f12;
  display: flex;
  align-items: center;
  justify-content: center;
}
.library-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 300ms ease;
}
.library-card:hover .library-cover {
  transform: scale(1.03);
}
.library-status-pill {
  position: absolute;
  top: 12px;
  right: 12px;
  font-family: var(--mono);
  font-size: 7.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.library-content {
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.library-card-eyebrow {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 8px;
  text-transform: uppercase;
  color: var(--accent);
}
.library-title {
  margin: 0 0 4px;
  font-size: 17px;
  font-weight: 680;
  line-height: 1.35;
  letter-spacing: -.02em;
}
.library-author {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--muted);
  font-style: italic;
}
.library-quote {
  margin: 0 0 14px;
  padding: 8px 12px;
  border-left: 2px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 5%, var(--page));
  font-family: var(--serif);
  font-size: 12.5px;
  font-style: italic;
  line-height: 1.55;
  color: color-mix(in srgb, var(--text) 90%, var(--muted));
}
.library-thoughts {
  margin-top: auto;
  padding: 12px 14px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--line) 24%, var(--page));
  font-size: 13px;
  line-height: 1.6;
}
.thoughts-label {
  display: block;
  font-family: var(--mono);
  font-size: 8.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--accent);
  margin-bottom: 4px;
}
.library-thoughts p {
  margin: 0;
  color: var(--text);
}
.library-link-wrap {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
}

/* ==========================================================================
   LOGBOOK THOUGHTS & TIME BADGES
   ========================================================================== */
.writing-card-thought {
  margin: 4px 0 6px;
  font-size: 12.5px;
  font-style: italic;
  color: color-mix(in srgb, var(--accent) 80%, var(--text));
  line-height: 1.5;
}
.writing-card-date {
  font-family: var(--mono);
  font-size: 8px;
  color: var(--muted);
  text-transform: uppercase;
}

/* ==========================================================================
   RESEARCH DOSSIER & DETAIL PAGE STYLES
   ========================================================================== */
.research-title-link {
  color: inherit;
  transition: color 150ms ease;
}
.research-title-link:hover {
  color: var(--accent);
}
.research-dossier-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 650;
  color: var(--page);
  background: var(--accent);
  padding: 6px 14px;
  border-radius: 6px;
  transition: opacity 150ms ease, transform 150ms ease;
}
.research-dossier-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}
.research-detail-container {
  padding-bottom: 30px;
}
.research-detail-header {
  margin: 16px 0 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
.research-detail-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1.3;
  margin: 12px 0 16px;
}
.research-detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.research-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}
.research-link-btn.primary {
  background: var(--accent);
  color: var(--page);
  padding: 6px 14px;
  border-radius: 6px;
}
.research-detail-section {
  margin: 32px 0;
}
.research-detail-section h3 {
  font-size: 18px;
  font-weight: 680;
  letter-spacing: -.02em;
  margin: 0 0 14px;
  color: var(--text);
}
.research-abstract-box {
  line-height: 1.7;
}
.research-theory-box,
.research-results-box {
  padding-left: 18px;
  border-left: 2px solid var(--accent);
  line-height: 1.7;
}
.research-related-grid {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--line);
  margin-top: 14px;
}
.research-related-card {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  transition: color 150ms ease;
}
.research-related-card:hover {
  border-color: var(--accent);
}
.research-related-index {
  font-family: var(--mono);
  font-size: 8.5px;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
}
.research-related-body h4 {
  margin: 0 0 3px;
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.4;
}
.research-related-body p {
  margin: 0;
  font-size: 11.5px;
  color: var(--muted);
}

/* ==========================================================================
   RESEARCH INTERESTS, PROJECTS & EXPLORATIONS, MEMORIES & MILESTONES
   Clean, unboxed typographic layout matching the site's editorial design
   ========================================================================== */

.writing-interests-section,
.writing-explorations-section,
.writing-memories-section {
  padding: 36px 0;
}

.writing-explorations-section .work-list,
.writing-memories-section .work-list {
  margin-top: 8px;
}

/* ==========================================================================
   PAGES & MOMENTS: VISUAL ARCHIVE & NOTEBOOK VIEWER STYLES
   ========================================================================== */

.album-viewer-container {
  width: min(1040px, calc(100% - 48px));
}

.album-standalone-wrap {
  width: 100%;
  margin: 16px 0 60px;
}

.album-viewer-catalog-top {
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
.album-viewer-catalog-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.album-viewer-catalog-title-box .overline {
  font-family: var(--mono);
  font-size: 8.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent);
  margin-bottom: 6px;
}
.album-viewer-catalog-heading {
  margin: 0 0 10px;
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 700;
  letter-spacing: -.025em;
  color: var(--text);
}
.album-viewer-catalog-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--muted);
  max-width: 720px;
}

.album-reader-nav-links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.album-reader-back-writing {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  transition: color 150ms ease;
}
.album-reader-back-writing:hover {
  color: var(--accent);
}
.album-reader-header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.album-catalog-lang-toggle,
.album-reader-lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 2px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--line) 15%, var(--page));
}
.album-lang-btn {
  min-width: 32px;
  height: 25px;
  padding: 0 8px;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .06em;
  cursor: pointer;
  transition: all 140ms ease;
}
.album-lang-btn:hover {
  color: var(--text);
}
.album-lang-btn.is-active {
  background: var(--text);
  color: var(--page);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

/* 1. CATALOG VIEW: LƯỚI BÌA ALBUM */
.album-catalog-wrap {
  margin: 10px 0 35px;
}

.album-catalog-toolbar {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}

.album-search-box {
  position: relative;
  width: 100%;
}

.album-search-input {
  width: 100%;
  padding: 10px 14px 10px 36px;
  font-family: var(--sans);
  font-size: 13.5px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--line) 8%, var(--page));
  color: var(--text);
  outline: none;
  transition: border-color 150ms ease, background-color 150ms ease;
}

.album-search-input:focus {
  border-color: var(--accent);
  background: var(--page);
}

.album-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.album-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 48px 24px;
  border-radius: 10px;
  border: 1px dashed var(--line);
  background: color-mix(in srgb, var(--line) 6%, var(--page));
  color: var(--muted);
  text-align: center;
  margin: 20px 0;
}
.album-empty-state svg {
  color: var(--muted);
  opacity: 0.6;
}
.album-empty-state p {
  margin: 0;
  font-size: 14px;
  max-width: 420px;
}

.album-catalog-filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.album-catalog-pill {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--page);
  color: var(--muted);
  cursor: pointer;
  transition: all 160ms cubic-bezier(0.16, 1, 0.3, 1);
}
.album-catalog-pill:hover {
  border-color: var(--accent);
  color: var(--text);
}
.album-catalog-pill.is-active {
  background: color-mix(in srgb, var(--accent) 12%, var(--page));
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

/* Lưới album 2 cột Desktop, 1 cột Mobile */
.album-catalog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.album-cover-card {
  display: flex;
  flex-direction: column;
  background: var(--page);
  border-radius: 12px;
  border: 1px solid var(--line);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
  cursor: pointer;
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 200ms ease;
}
:root[data-theme="dark"] .album-cover-card {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.28);
}
.album-cover-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.07);
}

.album-cover-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: #0f1217;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.album-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 350ms cubic-bezier(0.16, 1, 0.3, 1);
}
.album-cover-card:hover .album-cover-img {
  transform: scale(1.03);
}

.album-cover-badges {
  position: absolute;
  top: 10px;
  left: 10px;
  display: flex;
  gap: 6px;
  z-index: 2;
}
.album-type-badge {
  font-family: var(--mono);
  font-size: 7.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}
.album-period-badge {
  font-family: var(--mono);
  font-size: 7.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.72);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
}

.album-cover-body {
  padding: 18px 20px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.album-cover-title {
  margin: 0 0 8px;
  font-size: 17.5px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.02em;
  color: var(--text);
}

.album-cover-meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.album-cover-count {
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
}
.album-cover-ver {
  font-family: var(--mono);
  font-size: 7.5px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  background: color-mix(in srgb, var(--line) 15%, var(--page));
  color: var(--muted);
}

.album-cover-lead {
  margin: 0 0 16px;
  font-size: 13.5px;
  line-height: 1.6;
  color: color-mix(in srgb, var(--text) 85%, var(--muted));
  flex: 1;
}

.album-open-action-btn {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--line) 10%, var(--page));
  color: var(--text);
  cursor: pointer;
  transition: all 160ms ease;
}
.album-open-action-btn:hover,
.album-cover-card:hover .album-open-action-btn {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.album-open-action-btn .arrow {
  transition: transform 160ms ease;
}
.album-cover-card:hover .album-open-action-btn .arrow {
  transform: translateX(3px);
}


/* 2. READER VIEW: CUỐN SỔ TAY ĐỌC TRỰC TIẾP */
.album-reader-view {
  outline: none;
  background: var(--page);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
  margin-bottom: 35px;
}
:root[data-theme="dark"] .album-reader-view {
  box-shadow: 0 8px 36px rgba(0, 0, 0, 0.35);
}

.album-reader-topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--line) 10%, var(--page));
  flex-wrap: wrap;
}

.album-reader-header-left {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  flex: 1;
  min-width: 280px;
}

.album-reader-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--page);
  color: var(--text);
  cursor: pointer;
  flex-shrink: 0;
  transition: all 150ms ease;
}
.album-reader-back-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.album-reader-meta-wrap {
  flex: 1;
}
.album-reader-overline {
  font-family: var(--mono);
  font-size: 8px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  margin-bottom: 4px;
}
.album-reader-overline strong {
  color: var(--accent);
}
.album-reader-title {
  margin: 0 0 6px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.02em;
}
.album-reader-lead {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--muted);
  max-width: 680px;
}

/* Chế độ xem: Read (cuộn dọc) vs Flip through (lật từng trang) */
.album-view-switcher {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 3px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--page);
  align-self: flex-start;
}
.album-view-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: all 140ms ease;
  white-space: nowrap;
}
.album-view-btn:hover {
  color: var(--text);
}
.album-view-btn.is-active {
  background: color-mix(in srgb, var(--accent) 12%, var(--page));
  color: var(--accent);
  font-weight: 600;
}

/* READ MODE: DÒNG CUỘN TRANG DỌC */
.album-read-stream {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 32px 24px;
  background: color-mix(in srgb, var(--line) 4%, var(--page));
}
.album-read-page-card {
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  background: var(--page);
  border-radius: 10px;
  border: 1px solid var(--line);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.03);
  overflow: hidden;
  scroll-margin-top: 24px;
}
:root[data-theme="dark"] .album-read-page-card {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
}
.album-read-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 24px;
  background: color-mix(in srgb, var(--line) 8%, var(--page));
  border-bottom: 1px solid var(--line);
}
.album-read-card-num {
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent);
}
.album-read-card-type {
  font-family: var(--mono);
  font-size: 7.5px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
}

/* THÂN SỔ: FLIP THROUGH BOOK SPREAD STAGE */
.album-book-stage {
  padding: 30px;
  background: color-mix(in srgb, var(--line) 4%, var(--page));
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.album-book-paper {
  width: 100%;
  max-width: 980px;
  background: var(--page);
  border-radius: 10px;
  border: 1px solid var(--line);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04), 0 0 0 1px rgba(0, 0, 0, 0.02);
  overflow: hidden;
  transition: transform 220ms ease, opacity 220ms ease;
}
:root[data-theme="dark"] .album-book-paper {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

/* Bố cục trang đơn / 2 cột Desktop */
.album-page-content-wrap {
  display: grid;
  grid-template-columns: 52% 48%;
  gap: 32px;
  padding: 32px;
  align-items: start;
}
.album-page-content-wrap.layout-text {
  grid-template-columns: 1fr;
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 32px;
}

/* Cột Scan/Ảnh */
.album-visual-col {
  display: flex;
  flex-direction: column;
}
.album-scan-frame {
  position: relative;
  width: 100%;
  max-height: 520px;
  background: #0b0d10;
  border-radius: 8px;
  border: 1px solid var(--line);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.album-scan-img {
  width: 100%;
  height: auto;
  max-height: 520px;
  object-fit: contain;
  display: block;
}

.album-scan-zoom-btn {
  position: absolute;
  bottom: 12px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 7.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.78);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(6px);
  cursor: pointer;
  opacity: 0;
  transform: translateY(3px);
  transition: all 160ms ease;
}
.album-scan-frame:hover .album-scan-zoom-btn {
  opacity: 1;
  transform: translateY(0);
}
.album-scan-zoom-btn:hover {
  background: var(--accent);
  color: #fff;
}

/* Cột Narrative / Chú thích & Suy ngẫm */
.album-narrative-col {
  display: flex;
  flex-direction: column;
}

.album-page-context-meta {
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent);
  margin-bottom: 6px;
}

.album-page-entry-title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -.02em;
  color: var(--text);
}

.album-page-caption-text {
  margin: 0 0 16px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--muted);
  font-style: normal;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 12px;
}

/* Nút & Hộp Bản chép lại chữ viết tay (Read Transcription) */
.album-transcription-btn {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 7.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: var(--page);
  color: var(--muted);
  cursor: pointer;
  margin-bottom: 12px;
  transition: all 150ms ease;
}
.album-transcription-btn:hover,
.album-transcription-btn.is-active {
  border-color: var(--accent);
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--page));
}

.album-transcription-box {
  display: none;
  padding: 12px 14px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--line) 15%, var(--page));
  border: 1px dashed var(--line);
  margin-bottom: 16px;
}
.album-transcription-box.is-open {
  display: block;
}
.album-transcription-box strong {
  display: block;
  font-family: var(--mono);
  font-size: 7.5px;
  letter-spacing: .08em;
  color: var(--accent);
  margin-bottom: 4px;
}
.album-transcription-box p {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--text);
}

/* Thẻ Đoạn Suy Ngẫm (Field Reflection) */
.album-reflection-card {
  padding: 14px 16px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--accent) 7%, var(--page));
  border-left: 3px solid var(--accent);
  margin-bottom: 16px;
}
.album-reflection-tag {
  display: block;
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent);
  margin-bottom: 6px;
}
.album-reflection-text {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text);
}

/* Liên kết bài Writing liên quan */
.album-connected-writing-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--line) 10%, var(--page));
  font-size: 12.5px;
  margin-top: 6px;
  text-decoration: none;
  transition: all 150ms ease;
}
.album-connected-writing-link:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--page));
}
.album-connected-writing-link .tag {
  font-family: var(--mono);
  font-size: 7px;
  text-transform: uppercase;
  color: var(--accent);
}
.album-connected-writing-link strong {
  font-size: 12px;
  color: var(--text);
}

/* TRANG KẾT THÚC: WHAT STAYED WITH ME */
.album-page-closing {
  padding: 48px 40px;
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}
.album-closing-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 8.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--accent);
  margin-bottom: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 12%, var(--page));
}
.album-closing-title {
  margin: 0 0 20px;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -.02em;
}
.album-closing-text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  margin: 0 0 28px;
  text-align: left;
}
.album-restart-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--page);
  color: var(--muted);
  cursor: pointer;
  transition: all 150ms ease;
}
.album-restart-btn:hover {
  border-color: var(--accent);
  color: var(--text);
}

/* TRANG CHỈ CÓ CHỮ (DẪN CHUYỆN) */
.album-text-page-col {
  display: flex;
  flex-direction: column;
}
.album-text-page-meta {
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.album-text-page-heading {
  margin: 0 0 16px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.02em;
}
.album-text-page-body p {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text);
  margin-bottom: 16px;
}

/* THANH ĐIỀU HƯỚNG DƯỚI (NAVBAR) */
.album-reader-navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: color-mix(in srgb, var(--line) 15%, var(--page));
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
  gap: 12px;
}

.album-page-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--page);
  color: var(--text);
  cursor: pointer;
  transition: all 150ms ease;
}
.album-page-nav-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}
.album-page-nav-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.album-page-center-info {
  display: flex;
  align-items: center;
  gap: 12px;
}
.album-page-counter-badge {
  font-family: var(--mono);
  font-size: 8.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
}
.album-thumb-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: var(--page);
  color: var(--muted);
  cursor: pointer;
  transition: all 150ms ease;
}
.album-thumb-toggle-btn:hover,
.album-thumb-toggle-btn.is-active {
  border-color: var(--accent);
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--page));
}

/* NGĂN THUMBNAIL DRAWER */
.album-thumb-drawer {
  display: none;
  border-top: 1px dashed var(--line);
  background: color-mix(in srgb, var(--line) 8%, var(--page));
  padding: 16px 24px;
  overflow-x: auto;
}
.album-thumb-drawer.is-open {
  display: block;
}
.album-thumb-list {
  display: flex;
  gap: 12px;
  align-items: center;
}
.album-thumb-item {
  position: relative;
  width: 72px;
  height: 60px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: #0d0f14;
  overflow: hidden;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: all 150ms ease;
}
.album-thumb-item:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.album-thumb-item.is-active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent);
}
.album-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.album-thumb-text-preview {
  font-family: var(--mono);
  font-size: 8px;
  color: var(--muted);
  padding: 4px;
  text-align: center;
}
.album-thumb-num {
  position: absolute;
  bottom: 3px;
  right: 4px;
  font-family: var(--mono);
  font-size: 6.5px;
  font-weight: 700;
  padding: 1px 4px;
  border-radius: 2px;
  background: rgba(0, 0, 0, 0.75);
  color: #fff;
}

/* Animation chuyển trang */
.album-book-paper.flip-in-next {
  animation: albumPageNext 260ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.album-book-paper.flip-in-prev {
  animation: albumPagePrev 260ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes albumPageNext {
  0% { opacity: 0.3; transform: translateX(8px); }
  100% { opacity: 1; transform: translateX(0); }
}
@keyframes albumPagePrev {
  0% { opacity: 0.3; transform: translateX(-8px); }
  100% { opacity: 1; transform: translateX(0); }
}

@media (prefers-reduced-motion: reduce) {
  .album-book-paper.flip-in-next,
  .album-book-paper.flip-in-prev {
    animation: none !important;
    transform: none !important;
    transition: none !important;
  }
}

@media (max-width: 820px) {
  .album-page-content-wrap {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 20px;
  }
  .album-scan-frame {
    max-height: 420px;
  }
  .album-book-stage {
    padding: 16px;
  }
}

.album-notes-box {
  padding: 12px 14px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--accent) 7%, var(--page));
  border-left: 2px solid var(--accent);
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 16px;
}
.album-notes-box strong {
  display: block;
  font-family: var(--mono);
  font-size: 8px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}
.album-notes-box p {
  margin: 0;
}
.album-related-section {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}
.album-related-heading {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 8.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
}
.album-related-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.album-related-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--line) 15%, var(--page));
  font-size: 13px;
  transition: border-color 150ms ease, background-color 150ms ease;
}
.album-related-card:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--page));
}
.album-related-index {
  font-family: var(--mono);
  font-size: 7.5px;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
}
.album-related-title {
  flex: 1;
  font-size: 12.5px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Album Logbooks Layout */
.album-logbooks-section {
  margin: 20px 0 60px;
}
.album-logbooks-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.album-logbooks-title {
  margin: 4px 0 8px;
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1.15;
}
.album-header-text .section-lead {
  max-width: 620px;
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
}

.album-top-photo-folio {
  margin-bottom: 48px;
}

/* Image Expand Overlay Button */
.album-img-expand-btn {
  position: absolute;
  bottom: 10px;
  right: 10px;
  font-family: var(--mono);
  font-size: 7.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.75);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(6px);
  cursor: pointer;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 180ms ease, transform 180ms ease, background-color 150ms ease;
  z-index: 3;
}
.album-image-frame:hover .album-img-expand-btn {
  opacity: 1;
  transform: translateY(0);
}
.album-img-expand-btn:hover {
  background: var(--accent);
  color: #fff;
}

/* Controls */
.album-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 12px 20px;
  background: color-mix(in srgb, var(--line) 20%, var(--page));
  border-top: 1px solid var(--line);
}
.album-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--page);
  color: var(--text);
  cursor: pointer;
  transition: all 150ms ease;
}
.album-nav-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}
.album-nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.album-pagination-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.album-page-counter {
  font-family: var(--mono);
  font-size: 8.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
}
.album-era-pills {
  display: flex;
  align-items: center;
  gap: 5px;
  flex-wrap: wrap;
  justify-content: center;
}
.album-era-pill {
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: var(--page);
  color: var(--muted);
  cursor: pointer;
  transition: all 150ms ease;
}
.album-era-pill:hover {
  border-color: var(--accent);
  color: var(--text);
}
.album-era-pill.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* Bottom: Shared Writings Section */
.album-bottom-writings-section {
  padding-top: 10px;
}
.album-bottom-writings-section .heading-row {
  margin-bottom: 18px;
}
.album-bottom-writings-section .heading-row h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.02em;
}

/* Filter Toolbar */
.writing-filter-toolbar {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}
.writing-search-box {
  position: relative;
  width: 100%;
}
.writing-search-input {
  width: 100%;
  padding: 10px 14px 10px 36px;
  font-family: var(--sans);
  font-size: 13.5px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--line) 8%, var(--page));
  color: var(--text);
  outline: none;
  transition: border-color 150ms ease, background-color 150ms ease;
}
.writing-search-input:focus {
  border-color: var(--accent);
  background: var(--page);
}
.writing-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 13px;
  pointer-events: none;
}
.writing-cat-filter {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.writing-cat-pill {
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--page);
  color: var(--muted);
  cursor: pointer;
  transition: all 150ms ease;
}
.writing-cat-pill:hover {
  border-color: var(--accent);
  color: var(--text);
}
.writing-cat-pill.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* Lightbox Modal */
.album-lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
}
.album-lightbox-modal.is-open {
  opacity: 1;
  pointer-events: auto;
}
.album-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(8px);
}
.album-lightbox-dialog {
  position: relative;
  z-index: 2;
  max-width: 860px;
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: var(--page);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}
.album-lightbox-img-wrap {
  width: 100%;
  max-height: 70vh;
  background: #0d0f12;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.album-lightbox-img {
  width: 100%;
  height: 100%;
  max-height: 70vh;
  object-fit: contain;
}
.album-lightbox-meta {
  padding: 16px 20px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line);
}
.album-lightbox-meta h4 {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 700;
}
.album-lightbox-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent);
  margin-bottom: 8px;
}
.album-lightbox-meta p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}
.album-lightbox-note-box {
  margin-top: 10px;
  padding: 10px 14px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--accent) 8%, var(--page));
  border-left: 2px solid var(--accent);
}
.album-lightbox-note-box strong {
  display: block;
  font-family: var(--mono);
  font-size: 7.5px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}
.album-lightbox-note-box p {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text);
}
.album-lightbox-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--page);
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 150ms ease;
}
.album-lightbox-close:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Connected Album Plate on Detail View */
.writing-connected-plate {
  margin-top: 24px;
  padding: 14px 18px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--accent) 6%, var(--page));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.writing-connected-plate strong {
  display: block;
  font-size: 13.5px;
  margin-bottom: 2px;
}
.writing-connected-plate span {
  font-family: var(--mono);
  font-size: 8px;
  text-transform: uppercase;
  color: var(--accent);
}

@media (max-width: 768px) {
  .explorations-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .album-catalog-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .album-reader-topbar {
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    padding: 16px;
  }
  .album-reader-header-left {
    min-width: unset;
  }
  .album-view-switcher {
    width: 100%;
    justify-content: stretch;
  }
  .album-view-btn {
    flex: 1;
    justify-content: center;
  }
  .album-read-stream {
    padding: 16px 12px;
    gap: 20px;
  }
  .album-logbooks-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .book-spread {
    grid-template-columns: 1fr;
    padding: 20px;
    gap: 20px;
  }
  .book-spine {
    display: none;
  }
  .album-image-frame {
    aspect-ratio: 16 / 10;
  }
  .album-controls {
    flex-direction: column;
    align-items: stretch;
  }
  .album-era-pills {
    order: -1;
    margin-bottom: 8px;
  }
}

@media (max-width: 640px) {
  .library-shelf-grid { grid-template-columns: 1fr; }
  .research-work-header { flex-direction: column; }
  .research-work-footer { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
  .page-content { opacity: 1; transform: none; }
}