@import "tailwindcss";
@plugin "@tailwindcss/typography";
@theme {
  --font-sans:
    ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Microsoft YaHei", sans-serif;
}
:root {
  color-scheme: light;
  --ink: #232927;
  --muted: #68736b;
  --line: #e8ece9;
  --green: #20785e;
  --soft: #f6f8f6;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}
body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}
button,
a,
input,
summary {
  -webkit-tap-highlight-color: transparent;
}
button,
summary {
  cursor: pointer;
}
a {
  text-decoration: none;
}
button,
input {
  font: inherit;
}
button {
  color: inherit;
}
::selection {
  background: #d5eee2;
}
:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 4px;
}
.site-header {
  height: 68px;
  border: 0;
  display: flex;
  align-items: center;
  padding: 0 32px;
  gap: 34px;
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  z-index: 30;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
  font-size: 15px;
  letter-spacing: -0.4px;
}
.brand strong {
  font-weight: 600;
}
.brand-divider {
  margin: 0 7px;
  color: #c8ceca;
}
.docs-badge {
  font-size: 13px;
  padding: 2px 5px;
  border: 0;
  border-radius: 4px;
  color: var(--muted);
  letter-spacing: 0;
}
.brand-mark {
  width: 23px;
  height: 27px;
  display: flex;
  gap: 3px;
  align-items: center;
  transform: skewY(-18deg);
}
.brand-mark i {
  width: 5px;
  background: var(--green);
  height: 23px;
  border-radius: 1px;
}
.brand-mark i:nth-child(2) {
  height: 17px;
}
.brand-mark i:nth-child(3) {
  height: 11px;
}
.top-nav {
  display: flex;
  gap: 25px;
  margin-left: auto;
  font-size: 13px;
  color: #626b66;
}
.top-nav a:hover {
  color: var(--green);
}
.search-trigger {
  display: flex;
  gap: 9px;
  align-items: center;
  border: 0;
  background: #fafbf9;
  border-radius: 7px;
  padding: 7px 10px;
  width: 205px;
  font-size: 12px;
  color: #89918b;
}
.search-trigger > span:first-child {
  font-size: 23px;
  line-height: 16px;
  color: #707b73;
}
.search-trigger kbd {
  margin-left: auto;
  border: 0;
  border-radius: 3px;
  padding: 0 4px;
  font-size: 10px;
  background: white;
}
.skip-link {
  position: fixed;
  top: -70px;
  left: 20px;
  background: white;
  padding: 12px;
  z-index: 100;
}
.skip-link:focus {
  top: 10px;
}
.home-layout,
.reading-layout {
  max-width: 1600px;
  margin: auto;
  display: grid;
  grid-template-columns: 238px minmax(0, 1fr);
}
.sidebar {
  border: 0;
  padding: 32px 22px;
  height: calc(100dvh - 68px);
  position: sticky;
  top: 68px;
  overflow-y: auto;
  font-size: 13px;
}
.nav-home {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 9px 10px;
  border-radius: 5px;
  color: #6a756e;
}
.nav-home.selected {
  background: #f0f5f1;
  color: var(--green);
  font-weight: 600;
}
.nav-group {
  margin-top: 30px;
}
.nav-group > p {
  font-weight: 600;
  font-size: 13px;
  color: #363f39;
  margin: 0 10px 10px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 10px;
  line-height: 1.6;
  color: #637066;
  border: 0;
  margin-left: 10px;
}
.nav-item:hover {
  color: var(--green);
  background: #fafbf9;
}
.nav-item[aria-current="page"] {
  border-left-color: var(--green);
  color: var(--green);
  font-weight: 550;
  background: #f4f8f5;
}
.tiny-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #c2a56e;
  flex-shrink: 0;
}
.home-main {
  min-width: 0;
  padding: 0 48px;
}
.eyebrow { font-size: 13px; font-weight: 500; color: var(--muted); margin: 0; }
.draft-badge { color: #8c733e; background: #faf6e9; border: 0; border-radius: 4px; padding: 2px 6px; font-size: 12px; white-space: nowrap; }
.site-footer {
  border: 0;
  display: flex;
  justify-content: space-between;
  gap: 15px;
  padding: 24px 0;
  color: #a1aaa1;
  font-size: 13px;
}
.site-footer strong {
  font-weight: 500;
  color: #7b877c;
}
.reading-layout {
  grid-template-columns: 238px minmax(0, 1fr) 210px;
}
.reading-main {
  min-width: 0;
  max-width: 820px;
  width: 100%;
  margin: auto;
  padding: 34px 48px 0;
}
.breadcrumb {
  display: flex;
  gap: 12px;
  font-size: 11px;
  color: #8e978f;
  margin-bottom: 35px;
}
.breadcrumb a:hover {
  color: var(--green);
}
.breadcrumb > span:nth-child(2) {
  color: #c6cec7;
}
.prose {
  font-size: 16px;
  line-height: 1.95;
  color: #606b63;
  overflow-wrap: anywhere;
  --tw-prose-body: #606b63;
  --tw-prose-headings: #252e28;
  --tw-prose-bold: #414e44;
  --tw-prose-links: #287358;
  --tw-prose-counters: #919d93;
  --tw-prose-bullets: #a7b2a8;
}
.prose h1 {
  font-size: 34px;
  letter-spacing: -1.2px;
  font-weight: 550;
  line-height: 1.45;
  margin: 0 0 20px;
}
.prose > p:first-of-type {
  font-size: 16px;
  color: #6a766b;
  line-height: 1.9;
  margin-bottom: 34px;
}
.prose h2 {
  font-size: 21px;
  font-weight: 550;
  margin: 44px 0 20px;
  padding-top: 10px;
  letter-spacing: -0.4px;
}
.prose h3 {
  font-size: 18px;
  font-weight: 550;
  margin: 30px 0 12px;
}
.prose .heading-anchor {
  color: inherit;
  text-decoration: none;
  font-weight: inherit;
}
.heading-anchor > span {
  margin-left: 10px;
  color: #bac8bc;
  font-weight: 400;
  opacity: 0;
}
.heading-anchor:hover > span,
.heading-anchor:focus > span {
  opacity: 1;
}
.prose a {
  text-decoration-color: #b1cdbb;
  text-underline-offset: 4px;
}
.prose code:not(pre code) {
  font:
    0.85em ui-monospace,
    SFMono-Regular,
    Consolas,
    monospace;
  border: 0;
  background: #f6f8f5;
  border-radius: 4px;
  padding: 2px 5px;
  font-weight: 400;
  color: #4c6655;
}
.prose code::before,
.prose code::after {
  content: none;
}
.prose li {
  padding-left: 3px;
}
.prose table {
  display: table;
  width: 100%;
  min-width: 360px;
  margin: 0;
  font-size: 13px;
  border: 0;
  border-radius: 7px;
}
.prose thead {
  background: #f7f9f5;
}
.prose th,
.prose td {
  padding: 12px 15px;
  white-space: normal;
  min-width: 100px;
}
.prose img {
  border: 0;
  border-radius: 8px;
  padding: 12px;
  background: #fafbf8;
  width: 100%;
}
.callout {
  display: flex;
  gap: 12px;
  border: 0;
  padding: 15px 18px;
  border-radius: 7px;
  background: #f8faf6;
  font-size: 13px;
  font-weight: 400;
  font-style: normal;
  color: #6f7f6c;
}
.callout-draft {
  border-color: #ebe3d0;
  background: #fcfaf3;
  color: #927f54;
}
.callout p {
  margin: 0;
}
.callout p::before,
.callout p::after {
  content: none;
}
.callout-icon {
  flex-shrink: 0;
  font-size: 16px;
}
.code-block {
  border: 0;
  border-radius: 8px;
  overflow: hidden;
  background: #f9fbf7;
  margin: 24px 0;
  min-width: 0;
}
.code-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 15px;
  border: 0;
  color: #879781;
  font:
    10px ui-monospace,
    SFMono-Regular,
    Consolas,
    monospace;
  background: #f5f8f2;
}
.code-toolbar button {
  padding: 2px 6px;
  border: 0;
  border-radius: 4px;
  font-size: 11px;
  min-height: 28px;
  min-width: 44px;
  background: #fff;
  color: #607553;
}
.code-toolbar button:hover {
  border-color: #95ac8d;
}
.code-block pre,
.prose .code-block pre {
  margin: 0;
  background: transparent;
  color: #5b6f55;
  font:
    13px/1.9 ui-monospace,
    SFMono-Regular,
    Consolas,
    monospace;
  padding: 16px 15px;
  overflow-x: auto;
  border-radius: 0;
}
.code-block code {
  font: inherit;
  color: inherit;
}
.code-line {
  display: flex;
  min-width: max-content;
}
.line-number {
  width: 25px;
  flex-shrink: 0;
  color: #b3bfb0;
  user-select: none;
}
.code-command {
  color: #337c57;
  font-weight: 600;
}
.toc {
  padding: 47px 25px 30px 5px;
  position: sticky;
  top: 68px;
  height: calc(100dvh - 68px);
  overflow: auto;
  font-size: 13px;
}
.toc > .eyebrow {
  letter-spacing: 0;
  font-size: 13px;
  margin-bottom: 18px;
}
.toc nav {
  border: 0;
}
.toc nav a {
  display: block;
  padding: 7px 0 7px 15px;
  margin-left: -1px;
  border: 0;
  color: #69766b;
  line-height: 1.6;
}
.toc nav a:hover,
.toc nav a.active {
  color: var(--green);
  border-left-color: var(--green);
}
.toc nav a.toc-nested {
  padding-left: 25px;
}
.article-end {
  display: flex;
  gap: 15px;
  justify-content: space-between;
  border: 0;
  padding: 25px 0;
  margin-top: 45px;
  font-size: 10px;
  color: #9ba59b;
}
.article-end a {
  color: #688169;
}
.pagination {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin: 10px 0 45px;
}
.pagination > a {
  border: 0;
  padding: 18px;
  border-radius: 7px;
}
.pagination > a:hover {
  border-color: #afc3b1;
}
.pagination small {
  display: block;
  font-size: 10px;
  color: #9aa79a;
  margin-bottom: 7px;
}
.pagination strong {
  font-size: 14px;
  font-weight: 500;
  color: #526c55;
}
.next-page {
  text-align: right;
}
.search-dialog {
  padding: 0;
  border: 0;
  border-radius: 12px;
  width: min(570px, calc(100vw - 32px));
  max-height: 80dvh;
  margin: 14vh auto auto;
  box-shadow: 0 24px 80px #14281b26;
  color: var(--ink);
}
.search-dialog::backdrop {
  background: #293b304d;
  backdrop-filter: blur(3px);
}
.search-input-row {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 17px;
  border: 0;
}
.search-input-row > span {
  font-size: 25px;
  color: #879786;
}
.search-input-row input {
  width: 100%;
  min-width: 0;
  outline: none;
  font-size: 14px;
}
.search-input-row button {
  font-size: 10px;
  border: 0;
  border-radius: 4px;
  padding: 3px 5px;
}
.search-results {
  padding: 15px;
  max-height: 50dvh;
  overflow-y: auto;
}
.search-results > .eyebrow {
  margin: 0 8px 12px;
}
.search-result {
  display: block;
  border: 0;
  padding: 13px;
  border-radius: 7px;
}
.search-result.selected,
.search-result:hover {
  background: #f3f7f1;
  border-color: #e3ebdf;
}
.search-result > span {
  color: #92a18c;
  font-size: 10px;
}
.search-result strong {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin: 5px 0;
}
.search-result strong span {
  float: right;
  color: #91aa85;
}
.search-result small {
  font-size: 11px;
  color: #69765f;
}
.empty-search {
  font-size: 13px;
  padding: 25px 8px;
  color: #66735f;
}
.search-footer {
  padding: 12px 20px;
  border: 0;
  font-size: 10px;
  color: #9da797;
  display: flex;
  justify-content: space-between;
}
.mobile-bar,
.mobile-navigation,
.mobile-toc {
  display: none;
}
@media (min-width: 1450px) {
  .home-main {
    padding: 0 70px;
  }
  .reading-layout {
    grid-template-columns: 250px minmax(0, 1fr) 235px;
  }
}
@media (max-width: 1150px) {
  .top-nav {
    gap: 15px;
  }
  .reading-layout {
    grid-template-columns: 220px minmax(0, 1fr);
  }
  .toc {
    display: none;
  }
  .home-layout {
    grid-template-columns: 220px minmax(0, 1fr);
  }
  .home-main {
    padding: 0 30px;
  }
  .reading-main {
    padding: 30px 40px 0;
  }
  .top-nav a:nth-child(2) {
    display: none;
  }
  .mobile-toc {
    display: block;
    margin: 18px 0;
    border: 0;
    border-radius: 6px;
    padding: 10px 15px;
    font-size: 12px;
    color: #7d8a7d;
  }
  .mobile-toc nav {
    display: grid;
    gap: 10px;
    padding-top: 15px;
  }
  .mobile-toc a {
    padding: 3px 0;
  }
  .mobile-toc .active {
    color: var(--green);
  }
}
@media (max-width: 850px) {
  .site-header {
    padding: 0 20px;
    gap: 20px;
    height: 62px;
  }
  .top-nav {
    display: none;
  }
  .search-trigger {
    margin-left: auto;
  }
  .home-layout,
  .reading-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    display: none;
  }
  .mobile-bar {
    display: block;
    position: sticky;
    top: 62px;
    z-index: 25;
    background: #fff;
    border: 0;
  }
  .mobile-bar button {
    display: flex;
    width: 100%;
    align-items: center;
    gap: 10px;
    padding: 12px 22px;
    font-size: 11px;
    color: #7b897c;
  }
  .mobile-bar button span:last-child {
    margin-left: auto;
  }
  .mobile-navigation {
    display: block;
    padding: 15px 22px;
    border: 0;
    max-height: 65dvh;
    overflow: auto;
  }
  .mobile-navigation .nav-group {
    margin-top: 15px;
  }
  .home-main {
    padding: 0 30px;
  }
  .reading-main {
    max-width: 800px;
    padding: 28px 35px 0;
  }
  .breadcrumb {
    margin-bottom: 28px;
  }
  html {
    scroll-padding-top: 120px;
  }
}
@media (max-width: 560px) {
  .brand {
    font-size: 13px;
    gap: 9px;
  }
  .brand-divider {
    margin: 0 4px;
  }
  .docs-badge {
    display: none;
  }
  .site-header {
    padding: 0 18px;
    gap: 12px;
  }
  .search-trigger {
    width: 34px;
    height: 32px;
    justify-content: center;
    padding: 5px;
  }
  .search-trigger span:nth-child(2),
  .search-trigger kbd {
    display: none;
  }
  .home-main {
    padding: 0 22px;
  }
  .site-footer {
    flex-wrap: wrap;
    font-size: 9px;
    gap: 12px;
  }
  .site-footer > span:nth-child(2) {
    display: none;
  }
  .reading-main {
    padding: 25px 22px 0;
  }
  .prose {
    font-size: 15px;
    line-height: 1.95;
  }
  .prose h1 {
    font-size: 28px;
    letter-spacing: -0.8px;
  }
  .prose > p:first-of-type {
    font-size: 15px;
  }
  .prose h2 {
    font-size: 20px;
  }
  .pagination {
    gap: 10px;
  }
  .pagination > a {
    padding: 13px;
  }
  .pagination strong {
    font-size: 11px;
  }
  .article-end {
    flex-wrap: wrap;
    font-size: 10px;
  }
  .code-block pre,
  .prose .code-block pre {
    font-size: 12px;
    padding: 14px 11px;
  }
  .line-number {
    width: 20px;
  }
  .callout {
    padding: 13px;
    font-size: 13px;
  }
  .eyebrow {
    font-size: 9px;
  }
  .search-dialog {
    margin-top: 8vh;
  }
  .search-result small {
    line-height: 1.7;
    display: block;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

.prose .mobile-toc {
  font-size: 12px;
  font-weight: 400;
  line-height: 1.6;
}
.prose .mobile-toc a {
  text-decoration: none;
  font-weight: 400;
}
.mobile-toc summary {
  padding: 4px 0;
}

.table-scroll {
  overflow-x: auto;
  border: 0;
  border-radius: 7px;
  margin: 24px 0;
}
.prose .table-scroll table {
  border: 0;
  border-radius: 0;
}

/* Inline diagrams behave like ordinary article images with click-to-enlarge. */
.architecture-preview {
  display: block;
  width: 100%;
  margin: 28px 0;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}
.prose .architecture-preview img {
  display: block;
  width: 100%;
  height: auto;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}
.figure-gallery {
  margin: 28px 0;
}
.figure-gallery .architecture-preview {
  margin: 0;
}
.figure-gallery-controls,
.figure-gallery-dots {
  display: flex;
  align-items: center;
  justify-content: center;
}
.figure-gallery-controls {
  gap: 20px;
  margin-top: 12px;
}
.figure-gallery-arrow,
.figure-gallery-dot {
  display: grid;
  place-items: center;
  min-width: 36px;
  min-height: 36px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  color: #57534e;
  background: transparent;
  cursor: pointer;
}
.figure-gallery-arrow {
  font-size: 28px;
  line-height: 1;
}
.figure-gallery-dot span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #d6d3d1;
}
.figure-gallery-dot[aria-current="true"] span {
  background: #2563eb;
}
.figure-gallery-arrow:hover,
.figure-gallery-dot:hover {
  background: #f5f5f4;
}
.figure-gallery-arrow:focus-visible,
.figure-gallery-dot:focus-visible {
  outline: 2px solid #2563eb;
  outline-offset: 2px;
}
.image-lightbox {
  width: 100vw;
  height: 100dvh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  overflow: hidden;
}
.image-lightbox::backdrop {
  background: rgba(245, 247, 244, 0.97);
}
.image-lightbox-stage {
  width: 100%;
  height: 100%;
  display: flex;
  overflow: auto;
  overscroll-behavior: contain;
  padding: 32px;
}
.image-lightbox-picture {
  display: block;
  flex-shrink: 0;
  margin: auto;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}
.prose .image-lightbox-picture img {
  display: block;
  width: auto;
  height: auto;
  max-width: calc(100vw - 64px);
  max-height: calc(100dvh - 64px);
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}
.image-lightbox-picture.original-size {
  cursor: zoom-out;
}
.prose .image-lightbox-picture.original-size img {
  width: 2000px;
  max-width: none;
  max-height: none;
}
.image-lightbox-close {
  position: fixed;
  z-index: 1;
  top: 12px;
  right: 12px;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  color: #52655a;
  font:
    28px/1 ui-sans-serif,
    system-ui,
    sans-serif;
}
.image-lightbox-close:hover {
  background: #edf2ec;
}
@media (max-width: 560px) {
  .image-lightbox-stage {
    padding: 16px;
  }
  .prose .image-lightbox-picture img {
    max-width: calc(100vw - 32px);
    max-height: calc(100dvh - 32px);
  }
  .prose .image-lightbox-picture.original-size img {
    max-width: none;
    max-height: none;
  }
}

.auth-page {
  min-height: 100dvh;
  display: grid;
  place-content: center;
  padding: 32px 20px;
  background: #fafcf9;
}
.auth-brand {
  margin: 0 auto 30px;
}
.auth-card {
  width: min(390px, calc(100vw - 40px));
  padding: 36px;
  border: 0;
  border-radius: 12px;
  background: white;
  box-shadow: 0 15px 45px #34523c06;
}
.auth-card h1 {
  font-size: 26px;
  font-weight: 550;
  letter-spacing: -0.8px;
  margin: 22px 0 12px;
}
.auth-description {
  font-size: 13px;
  color: #78867a;
  line-height: 1.8;
  margin-bottom: 25px;
}
.auth-card label {
  display: block;
  font-size: 12px;
  color: #617566;
  margin-bottom: 10px;
}
.auth-card input {
  width: 100%;
  padding: 13px;
  border: 0;
  border-radius: 6px;
  font:
    24px ui-monospace,
    monospace;
  letter-spacing: 10px;
  text-align: center;
}
.auth-card input::placeholder {
  color: #bdc8bb;
}
.auth-error {
  font-size: 12px;
  color: #a64e3c;
  min-height: 38px;
  padding: 8px 0;
  line-height: 1.6;
}
.auth-card button[type="submit"] {
  display: block;
  width: 100%;
  padding: 12px;
  background: #2c7057;
  border-radius: 6px;
  color: white;
  font-size: 13px;
}
.auth-card button:disabled {
  opacity: 0.5;
  cursor: default;
}
.auth-footnote {
  font-size: 11px;
  color: #92a08f;
  margin-top: 20px;
  text-align: center;
}
.logout-button {
  font-size: 11px;
  color: #788575;
  padding: 6px 0;
}
.logout-button:hover {
  color: var(--green);
}

/* A bounded reading shelf and paged catalog keep the home stable as it grows. */
.home-main { max-width: 1120px; width: 100%; margin: 0 auto; }
.library-intro { padding: 64px 0 42px; }
.library-intro h1 { margin: 0 0 14px; font-size: 38px; font-weight: 600; letter-spacing: -1px; }
.library-intro p { margin: 0; font-size: 16px; color: var(--muted); }
.featured-section h2, .library-section h2 { font-size: 19px; font-weight: 550; margin: 0 0 22px; }
.featured-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: 20px; }
.featured-link { position: relative; border: 0; border-radius: 8px; padding: 26px; }
.featured-link:hover { border-color: #a4b7aa; background: #fafcfb; }
.featured-link > svg:first-child { color: var(--green); margin-bottom: 18px; }
.featured-link h3 { font-size: 18px; font-weight: 550; line-height: 1.6; margin: 0 0 10px; padding-right: 18px; }
.featured-link p { color: var(--muted); font-size: 14px; line-height: 1.8; margin: 0; }
.featured-link > svg:last-child { position: absolute; top: 28px; right: 24px; color: var(--muted); }
.library-section { padding: 46px 0 32px; }
.library-tools { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.collection-filters { display: flex; gap: 6px; flex-wrap: wrap; }
.collection-filters button { font-size: 14px; padding: 8px 12px; border-radius: 5px; color: var(--muted); }
.collection-filters button[aria-pressed="true"] { background: #eef4f0; color: var(--green); }
.library-search { display: flex; align-items: center; gap: 8px; color: var(--muted); border: 0; border-radius: 6px; padding: 9px 12px; }
.library-search input { min-width: 0; width: 145px; outline: 0; font-size: 14px; }
.library-search:focus-within { border-color: var(--green); }
.library-list { padding: 0; margin: 0; list-style: none; border: 0; }
.library-list li { border: 0; }
.library-list a { display: flex; align-items: center; gap: 18px; padding: 20px 4px; }
.library-list a:hover { color: var(--green); background: #fafcfb; }
.library-row-title { flex: 1; font-size: 15px; line-height: 1.7; }
.library-row-title .draft-badge { margin-left: 10px; }
.library-row-group { font-size: 13px; color: var(--muted); }
.library-list svg { flex-shrink: 0; color: #87948c; }
.library-pagination { display: flex; justify-content: flex-end; align-items: center; gap: 22px; margin: 22px 0 0; font-size: 14px; color: var(--muted); }
.library-pagination button { padding: 8px; }
.library-pagination button:disabled { opacity: .35; cursor: default; }
.library-empty { padding: 30px 0; color: var(--muted); }
.site-footer { font-size: 13px; color: var(--muted); }
.article-end { font-size: 13px; }
.search-trigger svg { flex-shrink: 0; }
@media (max-width: 560px) {
 .library-intro { padding: 36px 0; }
 .library-intro h1 { font-size: 32px; }
 .featured-grid { grid-template-columns: 1fr; gap: 12px; }
 .featured-link { padding: 22px; }
 .featured-link h3 { font-size: 17px; }
 .library-section { padding-top: 36px; }
 .library-tools { align-items: stretch; }
 .library-search { width: 100%; }
 .library-search input { width: 100%; }
 .library-list a { gap: 10px; padding: 16px 0; }
 .library-row-group { display: none; }
 .pagination strong { font-size: 13px; }
 .site-footer { font-size: 13px; }
}
.search-status { padding: 12px 20px 0; font-size: 13px; color: var(--muted); }

/* Shared typography; each document keeps its own identity and reading context. */
:root { --ink: #202724; --muted: #707873; --green: #27745b; --accent-wash: #e9f2ec; --ease: cubic-bezier(.2,.7,.2,1); }
body { background: #fdfefd; }
svg { flex-shrink: 0; }
[data-tone="blue"] { --green: #456da2; --accent-wash: #eaf0f9; }
[data-tone="violet"] { --green: #79609e; --accent-wash: #f1ecf8; }
[data-tone="amber"] { --green: #927346; --accent-wash: #f6f0e6; }
.site-header { height: 64px; padding: 0 30px; gap: 32px; border-bottom: 1px solid #edf0ee; background: #fdfefded; backdrop-filter: blur(18px); }
.brand { gap: 10px; }
.brand-mark i { background: linear-gradient(160deg,#80b69a,#27745b); }
.docs-badge { color: #819087; padding: 0; font-size: 13px; }
.top-nav { align-self: stretch; align-items: stretch; gap: 26px; margin-left: 16px; }
.top-nav a, .top-nav a:nth-child(2) { display: flex; align-items: center; position: relative; white-space: nowrap; transition: color 180ms; }
.top-nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--green); transform: scaleX(0); transform-origin: left; transition: transform 220ms var(--ease); }
.top-nav a:hover, .top-nav a[aria-current="page"] { color: var(--ink); }
.top-nav a[aria-current="page"]::after { transform: scaleX(1); }
.search-trigger { margin-left: auto; width: 218px; padding: 8px 12px; background: #f0f3f1; color: #768078; transition: background 180ms,box-shadow 180ms; }
.search-trigger:hover { background: #eaf0ec; box-shadow: 0 3px 16px #1c3c2810; }
.search-trigger span { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.search-trigger kbd { background: transparent; font-size: 11px; white-space: nowrap; }
.logout-button { font-size: 12px; }
.home-layout { grid-template-columns: 272px minmax(0,1fr); }
.reading-layout { grid-template-columns: 272px minmax(0,1fr) 222px; }
.sidebar { padding: 30px 26px 40px; height: calc(100dvh - 64px); top: 64px; scrollbar-width: thin; scrollbar-color: #d9e2dc transparent; }
.nav-back { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; color: #8a948e; margin: 0 8px 28px; transition: color 160ms; }
.nav-back:hover { color: var(--green); }
.collection-identity { display: flex; gap: 12px; align-items: center; color: var(--green); font-size: 16px; font-weight: 550; margin: 0 8px 28px; line-height: 1.5; }
.collection-nav-link { display: flex; align-items: center; gap: 12px; padding: 12px 10px; margin-bottom: 6px; border-radius: 7px; color: #647169; transition: background 180ms,color 180ms; }
.collection-nav-link svg:last-child { margin-left: auto; opacity: 0; transform: translateX(-3px); transition: opacity 180ms,transform 180ms; }
.collection-nav-link:hover { background: #f0f5f1; color: var(--green); }
.collection-nav-link:hover svg:last-child { opacity: 1; transform: none; }
.nav-group { margin-top: 28px; }
.nav-group > p { font-size: 12px; font-weight: 500; color: #909991; margin: 0 10px 10px; }
.nav-item { position: relative; padding: 8px 10px; margin: 2px 0; border-radius: 5px; line-height: 1.65; color: #68756d; transition: color 160ms,background 160ms; }
.nav-item:hover { color: var(--green); background: color-mix(in srgb,var(--accent-wash) 45%,transparent); }
.nav-item[aria-current="page"] { color: var(--green); background: linear-gradient(90deg,var(--accent-wash),transparent); }
.nav-item[aria-current="page"]::before { content: ""; position: absolute; left: -3px; top: 10px; bottom: 10px; width: 2px; border-radius: 2px; background: var(--green); }
.home-main { max-width: 1160px; }
.library-intro { position: relative; padding: 68px 0 46px; isolation: isolate; }
.library-intro::before { content: ""; position: absolute; z-index: -1; width: 420px; max-width: 100%; height: 240px; top: 0; left: -30px; background: radial-gradient(ellipse at 30% 30%,#eaf3ed99,transparent 70%); pointer-events: none; }
.library-intro h1 { font-weight: 550; }
.featured-grid { grid-template-columns: repeat(auto-fit,minmax(min(100%,220px),1fr)); }
.featured-link { display: flex; flex-direction: column; padding: 24px; border-radius: 12px; background: linear-gradient(145deg,color-mix(in srgb,var(--accent-wash) 65%,white),#fbfcfb 65%); transition: transform 240ms var(--ease),box-shadow 240ms var(--ease); }
.featured-link:hover { background: linear-gradient(145deg,var(--accent-wash),#fbfcfb 80%); transform: translateY(-4px); box-shadow: 0 14px 36px #1d35220d; }
.collection-art { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; color: var(--green); background: linear-gradient(145deg,#ffffffc9,var(--accent-wash)); margin-bottom: 26px; box-shadow: 0 2px 8px #25483705; transition: transform 240ms var(--ease); }
.featured-link:hover .collection-art { transform: translateY(-2px) rotate(-4deg); }
.featured-link h3 { font-size: 19px; margin: 0 0 12px; padding: 0; }
.featured-link p { flex: 1; }
.collection-entry { display: flex; align-items: center; justify-content: space-between; margin-top: 28px; color: var(--green); font-size: 13px; }
.collection-entry svg { transition: transform 200ms var(--ease); }
.featured-link:hover .collection-entry svg { transform: translateX(4px); }
.collection-filters { gap: 4px; }
.collection-filters button { font-size: 13px; transition: background 180ms,color 180ms; }
.collection-filters button:hover { color: var(--green); background: #f0f4f1; }
.collection-filters button[aria-pressed="true"] { background: linear-gradient(120deg,var(--accent-wash),#f2f6f3); }
.library-search { background: #f1f4f2; }
.library-search:focus-within { box-shadow: 0 0 0 2px var(--accent-wash); }
.library-list a { padding: 19px 14px; border-radius: 7px; transition: background 180ms,color 180ms; }
.library-list a:hover { background: #f2f6f3; }
.library-row-title { font-size: 14px; }
.library-row-group { font-size: 12px; color: #929b95; }
.library-list svg { transition: transform 180ms; }
.library-list a:hover svg { transform: translateX(3px); }
.site-footer { padding: 32px 0; font-size: 12px; color: #919a94; }
.reading-main { max-width: 852px; padding: 38px 44px 0; }
.breadcrumb { align-items: center; flex-wrap: wrap; font-size: 12px; margin-bottom: 30px; line-height: 1.7; }
.breadcrumb a { color: #6c7970; }
.breadcrumb > span:not(.draft-badge) { max-width: 100%; }
.draft-badge { font-size: 11px; background: #f7f2e9; }
.prose { line-height: 1.9; --tw-prose-links: var(--green); }
.prose > p:first-of-type { font-size: 17px; color: #788379; }
.prose code:not(pre code) { background: #eef2ef; }
.prose tbody tr, .prose thead tr { border: 0; }
.prose tbody tr:nth-child(even) { background: #f6f8f6; }
.prose thead { background: #eef3ef; }
.prose img { background: transparent; padding: 0; }
.callout { padding: 18px 20px; font-size: 14px; background: linear-gradient(120deg,#eef4ef,#f8faf7); }
.callout-draft { background: linear-gradient(120deg,#f7f1e7,#fcfaf5); }
.code-block { background: #f2f5f2; }
.code-toolbar { font-size: 12px; background: #eaf0eb88; }
.code-toolbar button { font-size: 12px; background: #ffffffaa; transition: background 180ms; }
.code-toolbar button:hover { background: white; }
.toc { top: 64px; height: calc(100dvh - 64px); padding: 44px 24px 30px 12px; font-size: 12px; }
.toc > .eyebrow { font-size: 12px; color: #929c94; }
.toc nav a { padding: 7px 10px; margin: 0; border-radius: 4px; color: #8a968d; transition: color 160ms,background 160ms; }
.toc nav a:hover, .toc nav a.active { color: var(--green); background: linear-gradient(90deg,var(--accent-wash),transparent); }
.article-end { margin-top: 30px; font-size: 12px; }
.pagination > a { background: #f3f6f3; transition: background 180ms,transform 180ms var(--ease); }
.pagination > a:hover { background: var(--accent-wash); transform: translateY(-2px); }
.pagination small { font-size: 12px; }
.search-dialog { background: #fdfefd; box-shadow: 0 24px 90px #192d2330; }
.search-dialog[open] { animation: surface-in 180ms var(--ease); }
.search-dialog::backdrop { backdrop-filter: blur(5px); }
.search-input-row { background: #f3f6f3; padding: 20px; }
.search-result.selected, .search-result:hover { background: var(--accent-wash); }
.search-result > span, .search-result small { font-size: 12px; }
.auth-page { background: radial-gradient(ellipse at 50% 30%,#edf5ef,transparent 60%),#fbfdfb; }
.auth-card { box-shadow: 0 18px 64px #294d340b; }
.auth-card input { background: #eff4ef; }
.auth-card button[type="submit"] { background: linear-gradient(120deg,#3e8969,#2c7057); }
@keyframes surface-in { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: none; } }
.reading-main, .library-intro { animation: surface-in 320ms var(--ease) both; }
@media (max-width: 1200px) {
 .site-header { gap: 22px; padding: 0 24px; }
 .top-nav { gap: 18px; margin-left: 0; }
 .search-trigger { width: 180px; }
 .reading-layout { grid-template-columns: 248px minmax(0,1fr); }
 .home-layout { grid-template-columns: 248px minmax(0,1fr); }
 .sidebar { padding-left: 22px; padding-right: 22px; }
 .toc { display: none; }
 .home-main { padding: 0 36px; }
 .mobile-toc { display: block; background: #f3f6f3; }
}
@media (min-width: 761px) and (max-width: 980px) {
 .top-nav { display: flex; gap: 14px; font-size: 12px; }
 .search-trigger { width: 36px; height: 34px; padding: 8px; justify-content: center; }
 .search-trigger span, .search-trigger kbd { display: none; }
 .mobile-bar, .mobile-navigation { display: none; }
 .sidebar { display: block; }
}
@media (max-width: 760px) {
 html { scroll-padding-top: 165px; }
 .site-header { height: auto; padding: 0 20px; column-gap: 18px; row-gap: 0; flex-wrap: wrap; }
 .brand { height: 62px; font-size: 15px; }
 .top-nav { display: flex; order: 4; width: 100%; overflow-x: auto; gap: 24px; min-width: 0; margin: 0; height: 44px; flex: 0 0 100%; font-size: 13px; scrollbar-width: none; }
 .top-nav a { padding: 0; }
 .search-trigger { width: 36px; height: 34px; padding: 8px; justify-content: center; }
 .search-trigger span, .search-trigger kbd { display: none; }
 .home-layout, .reading-layout { grid-template-columns: 1fr; }
 .sidebar { display: none; }
 .mobile-bar { display: block; top: 106px; background: #fdfefdf0; backdrop-filter: blur(14px); }
 .mobile-bar button { font-size: 13px; color: var(--green); }
 .mobile-navigation { padding: 20px 22px; background: #f7faf7; box-shadow: 0 16px 24px #26382c08; }
 .mobile-navigation .collection-identity, .mobile-navigation .nav-back { margin-bottom: 20px; }
 .home-main { padding: 0 24px; }
 .library-intro { padding: 40px 0 34px; }
 .library-intro h1 { font-size: 32px; }
 .reading-main { padding: 26px 24px 0; }
 .prose h1 { font-size: 29px; }
 .breadcrumb { margin-bottom: 24px; }
}
@media (max-width: 520px) {
 .featured-grid { grid-template-columns: 1fr; }
 .featured-link { padding: 23px; }
 .library-section { padding-top: 38px; }
 .library-list a { padding: 16px 8px; }
 .prose > p:first-of-type { font-size: 16px; }
 .pagination strong { font-size: 13px; }
 .site-footer { font-size: 12px; }
}
@media (prefers-reduced-motion: reduce) {
 html { scroll-behavior: auto; }
 *, *::before, *::after { animation: none !important; transition: none !important; }
 .featured-link:hover, .featured-link:hover .collection-art, .pagination > a:hover { transform: none; }
}

/* Compact navigation and local font roles, with no font downloads. */
:root {
  --font-reading: "Charter", "Iowan Old Style", "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  --font-code: "SFMono-Regular", Consolas, "Liberation Mono", "PingFang SC", monospace;
}
.top-nav { margin-left: 0; }
.sidebar { padding: 22px 16px 32px; }
.collection-identity { font-size: 14px; gap: 9px; margin: 0 8px 20px; }
.collection-identity svg { width: 18px; height: 18px; }
.nav-group { margin-top: 20px; }
.nav-group > p { margin: 0 8px 6px; font-size: 11px; letter-spacing: .02em; color: #7d8981; }
.nav-item { font-size: 13px; padding: 5px 8px; margin: 0; line-height: 1.5; gap: 6px; }
.nav-item[aria-current="page"]::before { top: 7px; bottom: 7px; }
.collection-nav-link { padding: 7px 8px; margin-bottom: 2px; gap: 9px; font-size: 13px; }
.prose { font-family: var(--font-reading); font-size: 16px; line-height: 1.95; }
.prose :is(h1,h2,h3,h4), .prose table, .code-toolbar, .mobile-toc { font-family: var(--font-sans); }
.prose :is(h1,h2,h3) { font-weight: 600; letter-spacing: -.025em; }
.prose :is(code,pre), .code-block pre, kbd { font-family: var(--font-code); font-variant-ligatures: none; }
.prose code { font-size: .86em; }
@media (min-width: 1201px) {
 .home-layout { grid-template-columns: 240px minmax(0,1fr); }
 .reading-layout { grid-template-columns: 240px minmax(0,1fr) 222px; }
}
@media (min-width: 761px) and (max-width: 1200px) {
 .home-layout, .reading-layout { grid-template-columns: 224px minmax(0,1fr); }
}
@media (max-width: 760px) {
 .top-nav { overflow: visible; }
 .mobile-navigation .nav-group { margin-top: 16px; }
}

/* Categories stay visible across the header, each with its own disclosure panel. */
.top-nav.category-navigation { position: relative; display: flex; margin-left: 0; gap: 0; }
.category-navigation > ul { display: flex; align-items: stretch; gap: 22px; height: 100%; list-style: none; padding: 0; margin: 0; }
.category-navigation > ul > li { display: flex; align-items: stretch; }
.category-menu { position: relative; }
.category-navigation .category-home, .category-trigger { display: flex; align-items: center; gap: 6px; color: var(--muted); font-family: var(--font-sans); font-size: 13px; white-space: nowrap; }
.category-trigger { position: relative; padding: 0; background: transparent; cursor: pointer; }
.category-trigger > svg { transform: rotate(90deg); transition: transform 160ms; }
.category-trigger[aria-expanded="true"] > svg { transform: rotate(-90deg); }
.category-trigger:hover, .category-trigger[aria-expanded="true"], .category-trigger[data-active="true"] { color: var(--ink); }
.category-trigger[data-active="true"]::after { content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 2px; background: var(--green); }
.category-trigger:focus-visible, .category-navigation a:focus-visible { outline: 2px solid var(--green); outline-offset: 4px; border-radius: 3px; }
.category-panel { position: absolute; top: 100%; left: -16px; width: 320px; padding: 12px; background: #fdfefd; border: 1px solid var(--line); border-radius: 0 0 10px 10px; box-shadow: 0 16px 40px #24352b1a; z-index: 50; }
.category-panel[hidden] { display: none; }
.category-menu:last-child .category-panel { left: auto; right: -16px; }
.category-panel-title { margin: 3px 10px 8px; font-size: 11px; color: var(--muted); }
.top-nav .category-panel a { display: flex; align-items: flex-start; gap: 12px; padding: 12px 10px; white-space: normal; border-radius: 6px; color: var(--ink); }
.top-nav .category-panel a::after { display: none; }
.category-panel a:hover, .category-panel a[aria-current] { background: var(--accent-wash); }
.category-panel a > svg { margin-top: 2px; color: var(--green); }
.category-panel strong { display: block; font-size: 13px; font-weight: 550; line-height: 1.5; }
.category-panel small { display: block; margin-top: 4px; font-size: 12px; line-height: 1.6; color: var(--muted); }
@media (min-width: 761px) and (max-width: 1100px) {
 .site-header { gap: 20px; }
 .category-navigation > ul { gap: 16px; }
 .category-navigation .category-home, .category-trigger { font-size: 12px; }
 .search-trigger { width: 36px; height: 34px; padding: 8px; justify-content: center; }
 .search-trigger span, .search-trigger kbd { display: none; }
}
@media (max-width: 760px) {
 .top-nav.category-navigation { overflow: visible; }
 .category-navigation > ul { width: 100%; gap: 18px; }
 .category-navigation .category-home, .category-trigger { font-size: 12px; }
 .category-menu { position: static; }
 .category-panel, .category-menu:last-child .category-panel { width: auto; left: 0; right: 0; }
}

/* Research keeps the documentation navigation and uses the remaining reading width. */
.research-layout { grid-template-columns: 240px minmax(0, 1fr); }
.research-layout .reading-main { max-width: 1440px; width: 100%; }
.research-layout > .toc { display: none; }
.ai-research { margin-top: 28px; font-size: 13px; line-height: 1.65; }
.ai-research h2 { font-size: 20px; font-weight: 600; margin: 0 0 10px; letter-spacing: -.4px; }
.ai-research h3 { font-size: 15px; font-weight: 600; margin: 18px 0 8px; }
.ai-research p { margin: 6px 0 10px; }
.ai-research a, .research-company-name { color: var(--green); }
.ai-research a:hover, .research-company-name:hover { text-decoration: underline; }
.ai-research button { text-align: left; }
.research-meta { display: flex; flex-wrap: wrap; gap: 12px 24px; color: var(--muted); font-size: 12px; }
.research-stats { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 16px; margin: 22px 0; }
.research-stats > div { border-top: 1px solid var(--line); padding: 14px 0; }
.research-stats strong { display: block; font-size: 29px; line-height: 1.3; font-weight: 550; font-variant-numeric: tabular-nums; }
.research-stats span { color: var(--muted); font-size: 12px; }
.research-scope { padding: 14px 18px; background: var(--soft); border-radius: 7px; }
.research-scope summary { color: var(--green); font-weight: 500; }
.research-scope ul { padding-left: 20px; }
.research-section { margin: 38px 0; scroll-margin-top: 92px; }
.research-muted, .research-footnote { color: var(--muted); font-size: 12px; }
.research-categories { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 8px 26px; margin-top: 20px; }
.research-categories button { padding: 12px 0; background: transparent; border: 0; border-bottom: 1px solid var(--line); }
.research-categories button:hover { color: var(--green); }
.research-categories button > div, .research-revenue-chart > div > div { display: flex; justify-content: space-between; gap: 16px; }
.research-categories strong { font-variant-numeric: tabular-nums; }
.research-categories small { font-size: 11px; color: var(--muted); }
.research-bar { display: block; height: 5px; background: #f0f3f1; margin: 8px 0; border-radius: 3px; overflow: hidden; }
.research-bar i { display: block; height: 100%; background: #47856d; border-radius: 3px; }
.research-bar[data-estimate] i { background: #b98a40; }
.research-tabs { display: flex; gap: 18px; border-bottom: 1px solid var(--line); margin: 18px 0; overflow-x: auto; }
.research-tabs button { padding: 10px 0; white-space: nowrap; background: none; border: 0; border-bottom: 2px solid transparent; color: var(--muted); }
.research-tabs button[aria-pressed="true"] { border-bottom-color: var(--green); color: var(--green); font-weight: 600; }
.research-filters { display: flex; flex-wrap: wrap; align-items: end; gap: 12px; }
.research-filters label { display: flex; flex-direction: column; gap: 5px; color: var(--muted); font-size: 11px; flex: 1 1 140px; }
.research-filters .research-query { flex: 2 1 210px; }
.research-filters :is(input,select) { min-width: 0; width: 100%; padding: 8px 10px; font-size: 12px; color: var(--ink); background: #fff; border: 1px solid #dfe6e0; border-radius: 5px; height: 36px; }
.research-result-count { display: flex; justify-content: space-between; margin: 14px 0 8px; color: var(--muted); font-size: 12px; }
.research-result-count button { border: 0; background: none; color: var(--green); }
.research-table-wrap { overflow-x: auto; max-width: 100%; }
.ai-research table { width: 100%; border-collapse: collapse; min-width: 720px; text-align: left; font-size: 12px; }
.ai-research caption { text-align: left; color: var(--muted); padding: 12px 0; font-size: 12px; }
.ai-research th { color: var(--muted); background: #f7f9f7; font-weight: 500; }
.ai-research :is(th,td) { padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.ai-research td:first-child { min-width: 140px; }
.ai-research td:nth-child(2) { min-width: 220px; }
.ai-research td p { margin: 6px 0; }
.ai-research td small { display: block; color: var(--muted); margin-top: 5px; }
.ai-research tr[data-selected] { background: #f0f8f3; }
.research-company-name { font-weight: 600; background: none; border: 0; padding: 0; }
.research-tag { display: inline-block; font-size: 10px; line-height: 1.7; padding: 1px 6px; border-radius: 3px; background: #eef3ef; color: #596e60; }
.research-pagination { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-top: 16px; }
.research-pagination button, .research-message button, .research-detail-heading button { padding: 6px 11px; border-radius: 4px; border: 1px solid var(--line); background: white; }
.research-pagination button:disabled { color: #a8afa9; cursor: default; }
.research-message { padding: 24px 0; color: var(--muted); }
.research-message button { margin-left: 12px; color: var(--green); }
.research-notice { border-left: 3px solid #c6a063; padding: 10px 16px; background: #faf8f2; }
.research-revenue-chart { display: grid; gap: 18px; padding: 18px 0 30px; }
.research-revenue-chart button { padding: 0; border: 0; background: none; color: var(--green); }
.research-revenue-chart strong { font-variant-numeric: tabular-nums; font-weight: 500; }
.research-revenue-chart small { color: var(--muted); font-size: 11px; }
.research-evidence-list, .research-review-list { list-style: none; padding: 0; margin: 0; }
.research-evidence { padding: 18px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 92px; }
.research-evidence > div { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.research-evidence code { font-size: 11px; color: var(--muted); }
.research-evidence strong { font-weight: 500; }
.research-evidence small { color: var(--muted); font-size: 11px; }
.research-review-list > li { padding: 20px 0; border-bottom: 1px solid var(--line); }
.research-review-list h3 { margin: 8px 0; }
.research-review-list > li > div { display: flex; gap: 14px; flex-wrap: wrap; }
.research-detail { padding-top: 24px; border-top: 2px solid #dbe8df; }
.research-detail-heading { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.research-company-facts { margin: 24px 0; }
.research-company-facts > div { display: grid; grid-template-columns: 90px minmax(0,1fr); gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.research-company-facts dt { color: var(--muted); }
.research-company-facts dd { margin: 0; }
.research-footnote { border-top: 1px solid var(--line); padding: 18px 0; }
@media (max-width: 760px) {
  .research-layout { grid-template-columns: 1fr; }
  .research-layout .reading-main { padding: 26px 24px 0; }
  .research-section, .research-evidence { scroll-margin-top: 176px; }
}
@media (max-width: 560px) {
  .research-stats { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 4px 18px; }
  .research-categories { grid-template-columns: 1fr; }
  .research-tabs { gap: 16px; }
  .research-layout .reading-main { padding: 22px 16px 0; }
}

.research-distribution { margin: 24px 0 38px; }
.research-distribution figure { margin: 20px 0; }
.ai-research .income-statistics { min-width: 1200px; }
/* Row-spanning category headings shift cell indexes between rows. */
.ai-research .income-statistics td { min-width: 0; }
.ai-research .income-statistics th[scope="rowgroup"] { min-width: 150px; white-space: nowrap; }
.ai-research .income-statistics th[scope="rowgroup"] small { display: block; margin-top: 5px; }
.ai-research .income-statistics td:not(:last-child) { white-space: nowrap; }
.ai-research .income-statistics td:last-child { min-width: 220px; }
.income-distribution-chart { display: block; width: 100%; min-width: 900px; height: auto; }
.income-distribution-chart [role="button"] { cursor: pointer; outline: none; }
.income-distribution-chart [role="button"]:focus circle:last-child { stroke: #b17725; stroke-width: 3; }
.research-distribution figcaption { color: var(--muted); font-size: 11px; line-height: 1.7; margin: 10px 0; }
.income-options { display: flex; flex-wrap: wrap; gap: 18px; margin: 12px 0; font-size: 12px; }
.income-options label { display: flex; gap: 6px; align-items: center; }
.research-distribution details { margin: 16px 0; font-size: 12px; line-height: 1.8; }