/* ─── Variables ───────────────────────────────────────────────────────────── */
:root {
  --navy:      #070A61;
  --navy-dark: #04063d;
  --navy-mid:  #0d1380;
  --navy-70:   rgba(7,10,97,.70);
  --navy-60:   rgba(7,10,97,.60);
  --navy-50:   rgba(7,10,97,.50);
  --navy-40:   rgba(7,10,97,.40);
  --navy-30:   rgba(7,10,97,.30);
  --navy-20:   rgba(7,10,97,.20);
  --navy-10:   rgba(7,10,97,.10);
  --blue:      #0075F2;
  --golden:    #FDB322;
  --green:     #0a8e4a;
  --white:     #ffffff;
  --off-white: #faf4ea;
  --cream:     #fdf8f0;
  --bg:        #eef0f8;
  --card:      #f4f5fb;
  --text:      #1e2030;
  --text-mid:  #4a4e6a;
  --text-light:#7a7e9a;
  --border:    #d8daea;
  --gold:      #f0b429;
  --gold-light:#fdf0d0;
  --draft-bg:  #fff8e1;
  --draft:     #b45309;
  --radius:    10px;
  --radius-lg: 20px;
  --shadow:    0 2px 16px rgba(0,117,242,.1);
  --shadow-lg: 0 8px 32px rgba(0,117,242,.18);
  --max:       1400px;
  --article:   720px;
  --font:      "Sofia Pro", system-ui, sans-serif;
}

/* ─── Reset ───────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 18px; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main { flex: 1; }
a { color: var(--navy); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }


/* ─── Breadcrumb ──────────────────────────────────────────────────────────── */
.breadcrumb {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(7,10,97,.05);
}
.breadcrumb-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: .622rem 1.333rem;
  font-size: .729rem;
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .889rem;
}
.breadcrumb-trail {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .267rem;
}
.breadcrumb-inner a {
  color: var(--blue);
  font-weight: 700;
}
.breadcrumb-inner a:hover { text-decoration: none; border-bottom: 1.5px solid var(--blue); padding-bottom: 1px; }
.breadcrumb-inner .sep { color: var(--border); }
.breadcrumb-inner .current { color: var(--text-mid); }

/* ─── Language switcher ───────────────────────────────────────────────────── */
.lang-switch {
  display: flex;
  align-items: center;
  gap: .222rem;
}
.lang-btn {
  font-size: .667rem;
  font-weight: 600;
  padding: .178rem .489rem;
  border-radius: 5px;
  text-decoration: none;
  color: var(--text-light);
  transition: color .12s, background .12s;
  letter-spacing: .02em;
}
.lang-btn:hover { color: var(--navy); text-decoration: none; }
.lang-btn--active {
  color: var(--navy);
  background: var(--off-white);
  border: 1px solid var(--border);
}
/* Hero lang */
.hero-lang {
  margin-top: 1.778rem;
  flex-wrap: wrap;
  gap: .3rem;
}

/* ─── Language trigger button (breadcrumb bar) ───────────────────────────── */
.lang-trigger {
  display: flex;
  align-items: center;
  gap: .222rem;
  font-family: var(--font);
  font-size: .667rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--navy);
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: .222rem .556rem;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background .12s, color .12s, border-color .12s;
}
.lang-trigger:hover {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}
.lang-trigger-caret {
  font-size: .5rem;
  opacity: .45;
}

/* ─── Language modal (full-screen) ──────────────────────────────────────── */
.lang-modal {
  position: fixed;
  inset: 0;
  width: 100%;
  max-width: 100%;
  height: 100%;
  max-height: 100%;
  margin: 0;
  padding: 0;
  background: #070A61;
  border: none;
  color: var(--white);
  z-index: 1000;
  display: none;
  flex-direction: column;
}
.lang-modal::backdrop { display: none; }
.lang-modal[open] { display: flex; }
.lang-modal-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-width: 560px;
  width: 100%;
  margin: 0 auto;
  padding: 2.222rem 1.778rem;
}
.lang-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.778rem;
  flex-shrink: 0;
}
.lang-modal-title {
  font-size: .604rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .18em;
  color: rgba(255,255,255,.5);
}
.lang-modal-close {
  background: none;
  border: none;
  color: rgba(255,255,255,.5);
  font-size: 1rem;
  cursor: pointer;
  padding: .222rem .444rem;
  line-height: 1;
  transition: color .12s;
}
.lang-modal-close:hover { color: var(--white); }
.lang-modal-search {
  font-family: var(--font);
  font-size: .889rem;
  color: var(--white);
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,.18);
  padding: .444rem 0 .667rem;
  outline: none;
  width: 100%;
  flex-shrink: 0;
  margin-bottom: .444rem;
}
.lang-modal-search::placeholder { color: rgba(255,255,255,.3); }
.lang-modal-list {
  list-style: none;
  overflow-y: auto;
  flex: 1;
  margin-top: .444rem;
  padding-right: 1.111rem;
}
.lang-modal-list li[hidden] { display: none; }
.lang-modal-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .8rem 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
  text-decoration: none;
  color: var(--white);
  transition: opacity .12s;
}
.lang-modal-item:hover { opacity: .7; text-decoration: none; }
.lang-modal-item.active .lang-modal-en { font-weight: 700; }
.lang-modal-en {
  font-size: .900rem;
  font-weight: 500;
  color: var(--white);
}
.lang-modal-code {
  font-size: .762rem;
  color: rgba(255,255,255,.35);
  font-weight: 400;
}
.lang-modal-native {
  font-size: .860rem;
  color: rgba(255,255,255,.45);
  text-align: right;
  flex-shrink: 0;
}

/* ─── Home ────────────────────────────────────────────────────────────────── */
.home-hero {
  background: var(--navy);
  padding: 3.333rem 1.333rem 3.111rem;
  position: relative;
  overflow: hidden;
}
/* Curved bottom transition */
.home-hero::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: -5%;
  width: 110%;
  height: 32px;
  background: var(--bg);
  border-radius: 50% 50% 0 0;
}
.hero-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 2.667rem;
  align-items: stretch;
  position: relative;
  z-index: 1;
}
.hero-text {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.hero-brand {
  display: flex;
  flex-direction: column;
}
.hero-nav {
  display: flex;
  flex-direction: column;
  gap: .333rem;
}
.hero-nav-link {
  font-size: .844rem;
  font-weight: 600;
  color: rgba(255,255,255,.65);
  text-decoration: none;
  transition: color .12s;
  padding: .278rem 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.hero-nav-link:last-child { border-bottom: none; }
.hero-nav-link:hover { color: var(--white); text-decoration: none; }
.hero-nav-intent {
  font-family: var(--font);
  font-size: .811rem;
  font-weight: 600;
  background: transparent;
  border: none;
  border-radius: 0;
  padding: .278rem .667rem;
  cursor: pointer;
  text-align: left;
  transition: background .12s;
  width: 100%;
}
.hero-nav-intent-help {
  color: rgba(255,255,255,.75);
  border-left: 3px solid #b83230;
}
.hero-nav-intent-help:hover { background: rgba(184,50,48,.12); color: var(--white); }
.hero-nav-intent-help.active {
  background: rgba(184,50,48,.2);
  color: var(--white);
  border-left-color: #e05553;
}
.hero-nav-intent-staff {
  color: rgba(255,255,255,.75);
  border-left: 3px solid #1e7a49;
}
.hero-nav-intent-staff:hover { background: rgba(30,122,73,.15); color: var(--white); }
.hero-nav-intent-staff.active {
  background: rgba(30,122,73,.22);
  color: var(--white);
  border-left-color: #2ea862;
}
/* WIKI — brand anchor at top of left column */
.hero-wiki-title {
  font-size: 3.111rem;
  font-weight: 900;
  line-height: .95;
  letter-spacing: -.04em;
  color: var(--white);
  text-transform: uppercase;
  margin-bottom: .667rem;
}
/* Language button inside hero */
.hero-lang-btn {
  display: inline-flex;
  align-items: center;
  gap: .333rem;
  font-family: var(--font);
  font-size: .733rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: rgba(255,255,255,.7);
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 6px;
  padding: .278rem .611rem;
  cursor: pointer;
  transition: background .15s, color .15s;
  align-self: flex-start;
}
.hero-lang-btn:hover {
  background: rgba(255,255,255,.18);
  color: var(--white);
}

/* Hero search */
.hero-search {
  margin-top: 1.444rem;
  margin-bottom: .222rem;
}
.hero-search-label {
  font-size: .622rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: rgba(255,255,255,.35);
  margin-bottom: .333rem;
}
.hero-search-input {
  width: 100%;
  font-family: var(--font);
  font-size: .933rem;
  color: var(--navy);
  background: var(--white);
  border: 2px solid transparent;
  border-radius: 8px;
  padding: .8rem 1rem;
  outline: none;
  margin-top: .444rem;
  transition: box-shadow .15s, border-color .15s;
}
.hero-search-input::placeholder { color: rgba(7,10,97,.5); }
.hero-search-input:focus {
  border-color: rgba(255,255,255,.5);
  box-shadow: 0 0 0 3px rgba(255,255,255,.2);
}

/* ─── Topic chips (hero right panel) ─────────────────────────────────────── */
.hero-topics {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: .444rem;
}
.topics-eyebrow {
  font-size: .733rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: rgba(255,255,255,.35);
  margin-bottom: .5rem;
}
.topic-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .5rem;
}
.topic-chip {
  display: flex;
  flex-direction: column;
  gap: .2rem;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px;
  background: rgba(255,255,255,.05);
  padding: .667rem .778rem;
  cursor: pointer;
  text-align: left;
  font-family: var(--font);
  transition: background .15s, border-color .15s;
}
.topic-chip:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.2);
}
/* "All" default-selected: subtle highlight, not dominant */
.topic-chip[data-theme=""].active {
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.3);
}
.topic-chip[data-theme=""].active .chip-label { color: var(--white); }
.topic-chip[data-theme=""].active .chip-count { color: rgba(255,255,255,.55); }
/* Specific topic active: full white = clear filtered state */
.topic-chip:not([data-theme=""]).active {
  background: var(--white);
  border-color: var(--white);
}
.chip-label {
  font-size: .9rem;
  font-weight: 700;
  color: rgba(255,255,255,.75);
  transition: color .15s;
  line-height: 1.2;
}
.topic-chip:hover .chip-label { color: var(--white); }
.topic-chip:not([data-theme=""]).active .chip-label { color: var(--navy); }
.chip-count {
  font-size: .733rem;
  color: rgba(255,255,255,.32);
  transition: color .15s;
  line-height: 1.4;
}
.topic-chip:hover .chip-count { color: rgba(255,255,255,.5); }
.topic-chip:not([data-theme=""]).active .chip-count { color: var(--navy-mid); }

/* Empty state when search/filter returns nothing */
.collections-empty {
  text-align: center;
  color: var(--text-light);
  font-size: .844rem;
  padding: 2.222rem 0;
}

/* Lang switch on dark hero */
.hero-lang .lang-btn {
  font-size: .733rem;
  color: rgba(255,255,255,.4);
  background: transparent;
  border-color: transparent;
}
.hero-lang .lang-btn:hover { color: rgba(255,255,255,.8); text-decoration: none; }
.hero-lang .lang-btn--active {
  color: var(--white);
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.18);
}

/* ─── Collections section ─────────────────────────────────────────────────── */
.collections-section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2.222rem 1.333rem 4.444rem;
  position: relative;
}
.collections-label {
  font-size: .778rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--text-light);
  margin-bottom: 1.333rem;
  transition: color .2s;
  display: flex;
  align-items: center;
  gap: .85rem;
}
.collections-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
  transition: background .2s;
}
.collections-section.is-filtered .collections-label {
  color: var(--navy);
}
.collections-section.is-filtered .collections-label::after {
  background: var(--navy);
  opacity: .2;
}

.collections-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.111rem;
}
.collection-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1.556rem;
  display: flex;
  flex-direction: column;
  min-height: 130px;
  text-decoration: none;
  color: inherit;
  transition: transform .2s, box-shadow .2s;
}
.collection-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}
.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: .356rem;
}
.card-desc {
  font-size: .8rem;
  color: var(--text-mid);
  line-height: 1.55;
  margin-bottom: .667rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-count {
  font-size: .756rem;
  font-weight: 600;
  color: var(--text-light);
  margin-top: auto;
  padding-top: .667rem;
}

/* ─── Collection page ─────────────────────────────────────────────────────── */
.collection-header {
  background: var(--navy);
  color: var(--white);
  padding: 2.667rem 1.333rem 3.556rem;
  position: relative;
  overflow: hidden;
}
.collection-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: -5%;
  width: 110%;
  height: 32px;
  background: var(--bg);
  border-radius: 50% 50% 0 0;
}
.collection-header-inner {
  max-width: var(--max);
  margin: 0 auto;
}
.collection-header h1 {
  font-size: 1.778rem;
  font-weight: 700;
  letter-spacing: -.01em;
  margin-bottom: .444rem;
}
.collection-desc {
  color: rgba(255,255,255,.72);
  max-width: 580px;
  font-size: .889rem;
}
.collection-eyebrow {
  font-size: .667rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: .556rem;
}
.collection-eyebrow a {
  color: rgba(255,255,255,.4);
  text-decoration: none;
}
.collection-eyebrow a:hover { color: rgba(255,255,255,.8); }

.collection-body {
  max-width: var(--max);
  margin: 1.778rem auto;
  padding: 0 1.333rem;
}

.article-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .533rem;
}
.article-item {}
.article-item.draft .article-title { color: var(--text-mid); }

.article-link {
  display: block;
  background: var(--white);
  border: none;
  border-radius: var(--radius);
  box-shadow: 0 1px 6px rgba(0,117,242,.07);
  padding: 1.111rem 1.333rem;
  transition: box-shadow .15s, transform .15s;
  color: inherit;
  text-decoration: none;
}
a.article-link:hover {
  box-shadow: var(--shadow);
  transform: translateY(-1px);
  text-decoration: none;
}
.article-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: .444rem;
  margin-bottom: .267rem;
}
.article-item.draft .article-title { color: var(--text-mid); }
.article-desc {
  font-size: .889rem;
  color: var(--text-mid);
  line-height: 1.55;
}

.badge-draft {
  font-size: .622rem;
  font-weight: 600;
  background: var(--draft-bg);
  color: var(--draft);
  border-radius: 4px;
  padding: .15em .5em;
  white-space: nowrap;
}
.badge-start {
  font-size: .578rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  background: rgba(0,117,242,.1);
  color: var(--navy);
  border: 1px solid rgba(0,117,242,.2);
  border-radius: 4px;
  padding: .15em .5em;
  white-space: nowrap;
}

.series-section { margin-top: 2.222rem; }
.series-heading {
  font-size: .889rem;
  font-weight: 700;
  color: var(--text-mid);
  margin-bottom: .889rem;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.series-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .533rem;
}
.series-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--white);
  border: none;
  border-radius: var(--radius);
  box-shadow: 0 1px 6px rgba(0,117,242,.07);
  padding: .889rem 1.111rem;
  text-decoration: none;
  color: inherit;
  transition: box-shadow .15s, transform .15s;
}
.series-link:hover {
  box-shadow: var(--shadow);
  transform: translateY(-1px);
  text-decoration: none;
}
.series-title { font-size: .844rem; font-weight: 600; color: var(--navy); }
.series-meta  { font-size: .729rem; color: var(--text-light); }

/* ─── Article page ────────────────────────────────────────────────────────── */
.article-page {
  max-width: var(--max);
  margin: 1.778rem auto;
  padding: 0 1.333rem;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 2.222rem;
  align-items: start;
}

/* Sidebar */
.article-sidebar {
  position: sticky;
  top: 1.778rem;
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1.333rem;
  overflow: hidden;
}
.sidebar-section {
  padding-bottom: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.sidebar-section:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: none;
}
.sidebar-label {
  font-size: .622rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-light);
  margin-bottom: .556rem;
}
.sidebar-collection {
  display: flex;
  align-items: center;
  gap: .356rem;
  font-size: .867rem;
  font-weight: 700;
  color: var(--navy);
  text-decoration: none;
}
.sidebar-collection:hover { color: var(--blue); text-decoration: none; }
.sidebar-icon { font-size: .889rem; }
.sidebar-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .089rem;
}
.sidebar-list li {
  font-size: .822rem;
}
.sidebar-list a {
  display: block;
  color: var(--text-mid);
  text-decoration: none;
  line-height: 1.5;
  padding: .222rem .333rem;
  border-radius: 5px;
  transition: background .12s, color .12s;
}
.sidebar-list a:hover {
  color: var(--navy);
  background: var(--bg);
  text-decoration: none;
}
.sidebar-current {
  display: block;
  color: var(--navy);
  font-weight: 700;
  line-height: 1.5;
  padding: .222rem .333rem;
  border-radius: 5px;
  background: var(--bg);
}
.sidebar-draft { color: var(--text-light); font-style: italic; padding: .222rem .333rem; }

/* Article main */
.article-main {
  background: var(--white);
  border: none;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.article-header {
  padding: 1.778rem 2.222rem 1.333rem;
  border-bottom: 1px solid var(--border);
}
.article-header h1 {
  font-size: 1.689rem;
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.25;
  margin-bottom: .533rem;
  color: var(--navy);
}
.article-description {
  font-size: .933rem;
  color: var(--text-mid);
  line-height: 1.6;
  margin-bottom: .667rem;
}
.article-meta {
  font-size: .667rem;
  color: var(--text-light);
  opacity: .8;
  margin-top: .333rem;
}

.article-body {
  padding: 1.778rem 2.222rem 2.667rem;
  max-width: var(--article);
  font-size: 1.044rem;
  line-height: 1.8;
  color: var(--navy);
}
.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4 {
  color: var(--navy);
  margin-top: 1.778rem;
  margin-bottom: .533rem;
  line-height: 1.3;
}
.article-body h1 { font-size: 1.378rem; }
.article-body h2 { font-size: 1.111rem; }
.article-body h3 { font-size: .933rem; }
.article-body h4 { font-size: .844rem; }
.article-body p  { margin-bottom: .889rem; }
.article-body ul,
.article-body ol {
  padding-left: 1.333rem;
  margin-bottom: .889rem;
}
.article-body li { margin-bottom: .267rem; }
.article-body strong { color: var(--text); }
.article-body a { color: var(--blue); text-decoration: none; border-bottom: 1.5px solid rgba(0,117,242,.35); padding-bottom: 1px; }
.article-body a:hover { color: #005bcc; border-bottom-color: #005bcc; }
.article-body blockquote {
  border-left: 3px solid var(--navy);
  margin: 1.111rem 0;
  padding: .444rem 1.111rem;
  color: var(--text-mid);
  font-style: italic;
  background: var(--off-white);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.article-body code {
  font-size: .85em;
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .15em .4em;
}
.article-body pre {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.111rem;
  overflow-x: auto;
  margin-bottom: .889rem;
}
.article-body pre code {
  background: none;
  border: none;
  padding: 0;
}
.article-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.778rem 0;
}

.article-draft {
  padding: 2.667rem 2.222rem;
  color: var(--text-mid);
  font-style: italic;
}

/* Series prev/next nav */
.article-series-nav {
  border-top: 1px solid var(--border);
  padding: 1.111rem 2.222rem;
}
.series-nav-inner {
  display: flex;
  justify-content: space-between;
  gap: .889rem;
}
.series-nav-prev,
.series-nav-next {
  display: flex;
  flex-direction: column;
  gap: .178rem;
  text-decoration: none;
  max-width: 45%;
}
.series-nav-next { text-align: right; }
.nav-dir  { font-size: .693rem; color: var(--text-light); }
.nav-title { font-size: .8rem; font-weight: 600; color: var(--navy); }
.series-nav-prev:hover .nav-title,
.series-nav-next:hover .nav-title { text-decoration: underline; }

/* ─── Footer ──────────────────────────────────────────────────────────────── */
.site-footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 1.778rem 1.333rem;
  margin-top: 3.556rem;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.footer-row-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem;
}
.footer-links {
  display: flex;
  gap: 1.333rem;
  flex-wrap: wrap;
}
.footer-links a {
  color: var(--navy);
  font-size: .889rem;
  font-weight: 700;
  text-decoration: none;
  opacity: .6;
  transition: opacity .15s;
}
.footer-links a:hover { opacity: 1; text-decoration: none; }
.footer-location {
  font-size: .844rem;
  font-weight: 600;
  color: var(--navy);
  opacity: .6;
}
.footer-copy {
  font-size: .844rem;
  font-weight: 600;
  color: var(--navy);
  opacity: .6;
  text-align: center;
}

/* ─── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 1.778rem; }
  .hero-wiki-title { font-size: 2.444rem; }
  .topic-grid { grid-template-columns: repeat(4, 1fr); }
  .collections-grid { grid-template-columns: repeat(2, 1fr); }
  .article-page { grid-template-columns: 1fr; }
  .article-sidebar {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .sidebar-section { min-width: 160px; }
}

/* ─── Blog — Home Section Link ────────────────────────────────────────────── */
.blog-section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.333rem 2rem;
}
.blog-section-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}
.blog-section-label {
  font-size: .778rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-mid);
}
.blog-section-all {
  font-size: .778rem;
  color: var(--blue);
  text-decoration: none;
}
.blog-section-all:hover { text-decoration: underline; }
.blog-section-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}
.blog-preview {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1.333rem;
  display: flex;
  flex-direction: column;
  gap: .444rem;
  text-decoration: none;
  color: inherit;
  transition: transform .2s, box-shadow .2s;
}
.blog-preview:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}
.blog-preview-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.3;
}
.blog-preview-desc {
  font-size: .833rem;
  color: var(--text-mid);
  line-height: 1.55;
  flex: 1;
}
.blog-preview-meta {
  display: flex;
  gap: .5rem;
  font-size: .667rem;
  color: var(--text-light);
  margin-top: .333rem;
  border-top: 1px solid var(--border);
  padding-top: .556rem;
}

@media (max-width: 900px) {
  .blog-section-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .blog-section-grid { grid-template-columns: 1fr; }
  .home-hero { padding: 2.222rem 1.111rem 3.556rem; }
  .hero-wiki-title { font-size: 2rem; }
  .topic-grid { grid-template-columns: repeat(2, 1fr); }
  .topic-intent-chip { grid-column: span 1; }
  .collections-section { padding: 1.778rem 1.111rem 2.667rem; }
  .collections-grid { grid-template-columns: 1fr; }
  .article-header,
  .article-body,
  .article-series-nav { padding-left: 1.111rem; padding-right: 1.111rem; }
  .article-header h1 { font-size: 1.333rem; }
  .footer-row-top { flex-direction: column; align-items: flex-start; }
}

/* ─── Theme toggle button ─────────────────────────────────────────────────── */
.theme-toggle {
  font-family: var(--font);
  font-size: .667rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--navy);
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: .222rem .556rem;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background .12s, color .12s, border-color .12s;
  line-height: 1.4;
}
.theme-toggle:hover {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}
.breadcrumb-actions {
  display: flex;
  align-items: center;
  gap: .444rem;
  flex-shrink: 0;
}
.hero-foot-btns {
  display: flex;
  align-items: center;
  gap: .5rem;
}

/* ─── Dark theme ──────────────────────────────────────────────────────────── */
[data-theme="dark"] {
  color-scheme: dark;
  --bg:        #000000;
  --card:      #0f0f0f;
  --white:     #0f0f0f;
  --off-white: #0a0a0a;
  --cream:     #0a0a0a;
  --text:      #dde0ef;
  --text-mid:  #8a8fa8;
  --text-light:#52566e;
  --border:    #1e2236;
  --shadow:    0 2px 16px rgba(0,0,0,.6);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.8);
  --draft-bg:  #1a1500;
  --gold-light:#120e00;
}

/* Global links */
[data-theme="dark"] a { color: #7aabff; }
[data-theme="dark"] a:hover { color: #a0c4ff; }
[data-theme="dark"] .lang-modal-item { color: var(--white); }
[data-theme="dark"] .lang-modal-item .lang-modal-en { color: var(--white); }

/* Breadcrumb */
[data-theme="dark"] .breadcrumb {
  background: #0a0a0a;
  border-bottom-color: #1e2236;
  box-shadow: none;
}
[data-theme="dark"] .breadcrumb-inner a { color: #0075F2; }
[data-theme="dark"] .lang-trigger {
  background: #0f0f0f;
  border-color: #1e2236;
  color: var(--text);
}
[data-theme="dark"] .lang-trigger:hover {
  background: #1e2236;
  color: var(--text);
  border-color: #3a3e6a;
}
[data-theme="dark"] .theme-toggle {
  background: #0f0f0f;
  border-color: #1e2236;
  color: var(--text-mid);
}
[data-theme="dark"] .theme-toggle:hover {
  background: #1e2236;
  color: var(--text);
  border-color: #3a3e6a;
}

/* Hero — keep navy bg, adjust internals */
[data-theme="dark"] .home-hero::after { background: #000; }
[data-theme="dark"] .hero-wiki-title { color: #ffffff; }
[data-theme="dark"] .hero-nav-link {
  color: rgba(255,255,255,.6);
  border-bottom-color: rgba(255,255,255,.08);
}
[data-theme="dark"] .hero-nav-link:hover { color: rgba(255,255,255,.92); }
[data-theme="dark"] .topics-eyebrow { color: rgba(255,255,255,.35); }
[data-theme="dark"] .hero-lang-btn {
  color: rgba(255,255,255,.55);
  background: rgba(255,255,255,.07);
  border-color: rgba(255,255,255,.1);
}
[data-theme="dark"] .hero-lang-btn:hover {
  background: rgba(255,255,255,.13);
  color: rgba(255,255,255,.85);
}
[data-theme="dark"] .hero-search-input {
  background: rgba(255,255,255,.07);
  color: rgba(255,255,255,.9);
  border-color: rgba(255,255,255,.12);
}
[data-theme="dark"] .hero-search-input::placeholder { color: rgba(255,255,255,.3); }
[data-theme="dark"] .hero-search-input:focus {
  border-color: rgba(255,255,255,.35);
  box-shadow: 0 0 0 3px rgba(255,255,255,.08);
}
/* "All" chip active label — var(--white) goes black in dark mode */
[data-theme="dark"] .topic-chip[data-theme=""].active .chip-label { color: #ffffff; }
[data-theme="dark"] .topic-chip[data-theme=""].active .chip-count { color: rgba(255,255,255,.55); }
/* Active topic chip stays visually distinct on hero */
[data-theme="dark"] .topic-chip:not([data-theme=""]).active {
  background: rgba(255,255,255,.88);
  border-color: rgba(255,255,255,.88);
}

/* Collection cards */
[data-theme="dark"] .collection-card { border-color: #1e2236; }
[data-theme="dark"] .card-title { color: #c8ccdf; }
[data-theme="dark"] .card-desc { color: var(--text-mid); }
[data-theme="dark"] .card-count { color: var(--text-light); }
[data-theme="dark"] .collections-label { color: var(--text-mid); }
[data-theme="dark"] .collections-label::after { background: var(--border); }

/* Article sidebar */
[data-theme="dark"] .sidebar-collection { color: #c8ccdf; }
[data-theme="dark"] .sidebar-list a { color: var(--text-mid); }
[data-theme="dark"] .sidebar-list a:hover { background: #141428; color: var(--text); }
[data-theme="dark"] .sidebar-current { background: #141428; color: var(--text); }
[data-theme="dark"] .sidebar-section { border-bottom-color: #1e2236; }

/* Article main */
[data-theme="dark"] .article-header h1 { color: #d0d4e8; }
[data-theme="dark"] .article-header { border-bottom-color: #1e2236; }
[data-theme="dark"] .article-body { color: #dde0ef; }
[data-theme="dark"] .article-body h1,
[data-theme="dark"] .article-body h2,
[data-theme="dark"] .article-body h3,
[data-theme="dark"] .article-body h4 { color: #c0c5de; }
[data-theme="dark"] .article-body a { color: #0075F2; text-decoration: none; border-bottom: 1.5px solid rgba(0,117,242,.4); padding-bottom: 1px; }
[data-theme="dark"] .article-body a:hover { color: #3395ff; border-bottom-color: #3395ff; }
[data-theme="dark"] .article-body blockquote {
  border-left-color: #3a5eaa;
  background: #0a0a14;
  color: var(--text-mid);
}
[data-theme="dark"] .article-body code {
  background: #0a0a0a;
  border-color: #1e2236;
  color: #b0b8d8;
}
[data-theme="dark"] .article-body pre {
  background: #0a0a0a;
  border-color: #1e2236;
}
[data-theme="dark"] .article-series-nav { border-top-color: #1e2236; }
[data-theme="dark"] .nav-dir { color: var(--text-light); }
[data-theme="dark"] .nav-title { color: var(--text); }
[data-theme="dark"] .series-nav-prev:hover .nav-title,
[data-theme="dark"] .series-nav-next:hover .nav-title { color: #7aabff; }

/* Collection page header (navy bg — keep white text) */
[data-theme="dark"] .collection-header::after { background: #000; }
[data-theme="dark"] .collection-header h1 { color: rgba(255,255,255,.92); }
[data-theme="dark"] .collection-eyebrow a {
  color: rgba(255,255,255,.38);
  text-decoration: none;
}
[data-theme="dark"] .collection-eyebrow a:hover { color: rgba(255,255,255,.75); }

/* Article list on collection page */
[data-theme="dark"] .article-link { box-shadow: none; }
[data-theme="dark"] a.article-link:hover { box-shadow: 0 2px 12px rgba(0,0,0,.5); }
[data-theme="dark"] .article-title { color: #c0c5de; }
[data-theme="dark"] .article-item.draft .article-title { color: var(--text-light); }
[data-theme="dark"] .badge-start {
  background: rgba(122,171,255,.1);
  color: #7aabff;
  border-color: rgba(122,171,255,.22);
}
[data-theme="dark"] .badge-draft { background: #1a1500; color: #c09050; }
[data-theme="dark"] .series-title { color: #c0c5de; }

/* Blog previews */
[data-theme="dark"] .blog-section-label { color: var(--text-mid); }
[data-theme="dark"] .blog-preview-title { color: #c8ccdf; }
[data-theme="dark"] .blog-preview-meta { border-top-color: #1e2236; }

/* Footer */
[data-theme="dark"] .site-footer { border-top-color: #1e2236; }
[data-theme="dark"] .footer-links a { color: rgba(255,255,255,.45); }
[data-theme="dark"] .footer-links a:hover { color: rgba(255,255,255,.8); }
[data-theme="dark"] .footer-location { color: rgba(255,255,255,.25); }
[data-theme="dark"] .footer-copy { color: rgba(255,255,255,.25); }