/* ----------------------------
   Root and Global Styles
----------------------------- */
:root {
  --primary: #5252cf;
  --primary-dark: #3d3da3;
  --primary-light: #7950e6;
  --primary-rgb: 82, 82, 207;
  --accent: #5bbad5;
  --accent-rgb: 91, 186, 213;
  --text: #2b2b33;
  --bg: #fff;
  --font-body: 'Open Sans', sans-serif;
}

html {
  font-size: 16px;
  box-sizing: border-box;
  max-width: 100%;
  overflow-x: hidden;
}

*, *:before, *:after {
  box-sizing: inherit;
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  margin: 0;
  color: var(--text);
  background: var(--bg);
  max-width: 100%;
  overflow-x: hidden;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  color: var(--primary-light);
  text-decoration: underline;
}

img { max-width: 100%; }

/* ----------------------------
   Top navigation
----------------------------- */
.topnav {
  width: 100%;
  background: var(--primary);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.nav-brand {
  display: flex;
  align-items: center;
}

.nav-logo {
  height: 2.4rem;
  filter: brightness(0) invert(1);
}

.topnav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.topnav ul a {
  display: inline-block;
  color: white;
  text-decoration: none;
  font-weight: 600;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
}

.topnav ul a:hover {
  background: rgba(255, 255, 255, 0.18);
  text-decoration: none;
}

/* ----------------------------
   Hero header
----------------------------- */
header.site-header {
  background: #f5f5fc;
  color: var(--primary);
  padding: 3.5rem 1.5rem;
  text-align: center;
}

header.site-header .hero-logo {
  height: 5rem;
  margin-bottom: 1.25rem;
}

header.site-header h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  letter-spacing: 0.02em;
}

header.site-header p.tagline {
  font-size: 1.2rem;
  font-weight: 300;
  margin: 0 auto;
  max-width: 42rem;
  opacity: 0.95;
}

header.site-header a {
  color: var(--primary);
  text-decoration: underline;
}

header.site-header a:hover {
  color: var(--accent);
}

.hero-ctas {
  margin-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.hero-ctas a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: white;
  border: 1px solid var(--primary);
  color: white;
  padding: 0.6rem 1.2rem;
  border-radius: 4px;
  font-weight: 700;
  text-decoration: none;
}

.hero-ctas a:hover {
  background: white;
  color: var(--primary-dark);
}

/* ----------------------------
   Main content
----------------------------- */
.container {
  max-width: 960px;
  margin: auto;
  padding: 1rem 1.25rem;
}

section {
  margin: 2.5rem 0;
}

h2 {
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

h3 {
  color: var(--primary-dark);
}

.section-intro {
  color: #4a4a55;
  max-width: 62rem;
}

/* ----------------------------
   Cards
----------------------------- */
.card-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .card-list { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 960px) {
  .card-list.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
}

.card-list li,
.card {
  background: #fff;
  border: 1px solid #e3e3f2;
  border-radius: 4px;
  padding: 1.25rem 1.4rem;
  box-shadow: none;
}

.card-list h3,
.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
}

.card-list .date,
.badge {
  display: inline-block;
  font-size: 0.78rem;
  background: var(--primary);
  color: white;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 0.5rem;
}

.badge.accent { background: var(--accent); color: #093642; }

.card-list p, .card p {
  margin: 0.4rem 0;
  color: #444;
}

.card-list .meta, .card .meta {
  font-size: 0.85rem;
  color: #666;
}

.feed-url {
  font-family: 'Fira Mono', 'Courier New', monospace;
  font-size: 0.85rem;
  word-break: break-all;
  background: rgba(var(--primary-rgb), 0.06);
  padding: 0.35rem 0.55rem;
  border-radius: 6px;
  display: inline-block;
  margin: 0.35rem 0;
}

/* ----------------------------
   Data tables
----------------------------- */
table.data-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid #e3e3f2;
  border-radius: 4px;
  overflow: hidden;
  margin: 1rem 0 2rem;
}

table.data-table th, table.data-table td {
  padding: 0.8rem 1rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid #eee;
  font-size: 0.95rem;
}

table.data-table thead th {
  background: var(--primary);
  color: white;
}

table.data-table tr:last-child td { border-bottom: none; }

/* ----------------------------
   Post page
----------------------------- */
.post-page { margin-top: 2rem; }

.post h1 {
  color: var(--primary);
  font-size: 1.9rem;
  margin-bottom: 0.5rem;
}

.post-meta {
  font-size: 0.88rem;
  color: #666;
  margin-bottom: 1.5rem;
}

.post-content { font-size: 1.05rem; }

.post-content h2, .post-content h3 { margin-top: 2em; }
.post-content h2 { color: var(--primary); }
.post-content img { border-radius: 8px; margin: 1.25rem 0; }
.post-content blockquote {
  border-left: 4px solid var(--primary-light);
  margin: 1.5em 0;
  padding-left: 1rem;
  color: #555;
  font-style: italic;
}
.post-content .iframe-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  margin: 1.5rem 0;
  border-radius: 10px;
}
.post-content .iframe-container iframe,
.post-content iframe {
  max-width: 100%;
  border-radius: 10px;
}
.post-content .iframe-container iframe {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  border: 0;
}
.post-nav-back { margin: 1rem 0 3rem; }

/* ----------------------------
   Community / chat box
----------------------------- */
.chat-box {
  background: #fff;
  border: 1px solid #e3e3f2;
  border-left: 6px solid var(--accent);
  border-radius: 4px;
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.steps {
  padding-left: 1.2rem;
}
.steps li { margin-bottom: 0.6rem; }

/* ----------------------------
   Footer
----------------------------- */
footer {
  font-size: 0.85rem;
  color: #666;
  padding: 2rem 1rem;
  text-align: center;
  background: white;
  border-top: 1px solid #e3e3f2;
  margin-top: 3rem;
}

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

/* ----------------------------
   Responsive
----------------------------- */
@media (max-width: 640px) {
  header.site-header {
    padding: 2.5rem 1rem;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  header.site-header h1 { font-size: 1.6rem; }
}

/* ----------------------------
   Accessibility
----------------------------- */
.skip-link {
  position: absolute;
  left: -999rem;
  top: 0;
  background: #000;
  color: #fff;
  padding: 0.75rem 1rem;
  font-weight: 600;
  z-index: 1000;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* Shared editorial rhythm */
.hero-summary { max-width: 38rem; margin: 1rem auto 0; font-size: 1.15rem; color: var(--text); }
header.site-header p.tagline { font-style: italic; font-weight: 400; }
.how-it-works { padding-left: 1.4rem; }
.how-it-works li { margin: 0.8rem 0; padding-left: 0.3rem; }
.news-masthead { padding: 2.5rem 0 1.75rem; border-bottom: 3px solid var(--primary); }
.news-masthead h1 { font-size: clamp(2.5rem, 7vw, 4rem); line-height: 1.1; letter-spacing: -0.04em; margin: 0.4rem 0 1rem; }
.news-masthead p { max-width: 40rem; }
.news-story { display: grid; grid-template-columns: 9rem minmax(0, 1fr); gap: 2rem; padding: 1.75rem 0; border-bottom: 1px solid #dddde8; }
.news-dateline { font-size: 0.85rem; color: #62626d; padding-top: 0.25rem; }
.news-story h2, .news-story h3 { margin: 0; line-height: 1.3; font-size: 1.45rem; }
.news-story h2 a, .news-story h3 a { color: var(--text); }
.news-story a:hover { color: var(--primary); }
.news-summary { max-width: 42rem; margin: 0.75rem 0; color: #4a4a55; }
.news-story .post-meta { margin: 0; font-size: 0.8rem; }
.news-lead { padding: 2.5rem 0; }
.news-lead h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); letter-spacing: -0.025em; }
.news-year { margin: 2.5rem 0; }
.news-year > h2 { font-size: 1rem; border-bottom: 1px solid var(--primary); padding-bottom: 0.6rem; margin-bottom: 0; }
.news-list-compact .news-story h3 { font-size: 1.15rem; }
.publication-list, .example-list { list-style: none; padding: 0; }
.publication-list > li, .example-list > li { padding: 1.5rem 0; border-bottom: 1px solid #dddde8; }
.publication-list h3, .example-list h3 { margin: 0 0 0.5rem; }
.publication-list p, .example-list p { margin: 0.5rem 0; }
.meta, .example-evidence { font-size: 0.85rem; color: #62626d; }
.feed-url { max-width: 100%; overflow-wrap: anywhere; }
.post-page { max-width: 780px; }
.post-content pre { overflow-x: auto; padding: 1rem; background: #f5f5fc; }
@media (max-width: 640px) {
  .news-story { grid-template-columns: minmax(0, 1fr); gap: 0.75rem; }
  .news-dateline time { display: inline; }
  .topnav { gap: 0.5rem; }
  .topnav ul { justify-content: center; }
  .topnav ul a { padding: 0.4rem 0.6rem; }
}

/* Implementation examples and long-form articles */
.implementation-examples { margin: 0; }
.implementation-examples > div { display: grid; grid-template-columns: 13rem minmax(0, 1fr); gap: 2rem; padding: 1.25rem 0; border-bottom: 1px solid #dddde8; }
.implementation-examples dt { font-weight: 700; color: var(--primary-dark); }
.implementation-examples dd { margin: 0; }
.post-feature { max-width: 1100px; }
.post-feature .post-header { padding: 1.5rem 0 1rem; border-bottom: 3px solid var(--primary); margin-bottom: 2rem; }
.post-feature h1 { max-width: 55rem; color: var(--text); font-size: clamp(2rem, 4.5vw, 3.2rem); line-height: 1.15; letter-spacing: -0.025em; }
.post-deck { max-width: 46rem; font-size: 1.25rem; color: #4a4a55; }
.article-layout { display: grid; grid-template-columns: 13rem minmax(0, 1fr); gap: 3rem; }
.article-contents { align-self: start; position: sticky; top: 1.5rem; }
.article-contents h2 { font-size: 1rem; margin: 0 0 0.75rem; }
.article-contents ol { padding-left: 1.25rem; font-size: 0.9rem; }
.article-contents li { padding-left: 0.25rem; margin: 0.75rem 0; }
.post-feature .post-content > p:first-child { margin-top: 0; font-size: 1.2rem; }
.post-content h2[id] { scroll-margin-top: 1.5rem; }
.article-table { max-width: 100%; overflow-x: auto; margin: 1.5rem 0; }
.article-table table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.article-table th, .article-table td { padding: 0.75rem; text-align: left; vertical-align: top; border-bottom: 1px solid #dddde8; }
.article-table th { background: #f5f5fc; color: var(--primary-dark); }
@media (max-width: 760px) {
  .article-layout, .implementation-examples > div { grid-template-columns: minmax(0, 1fr); gap: 1rem; }
  .article-contents { position: static; padding-bottom: 1rem; border-bottom: 1px solid #dddde8; }
  .article-table th, .article-table td { padding: 0.65rem 0.4rem; }
}

/* Supporters and implementations */
.ecosystem {
  margin: 4rem -2rem;
  padding: clamp(1.5rem, 4vw, 3rem) 2rem;
  background: #f3f3fb;
  border: 1px solid #e3e3f2;
  border-radius: 16px;
}
.ecosystem-intro { max-width: 43rem; margin-bottom: 2rem; }
.ecosystem-intro h2 {
  color: var(--text);
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.035em;
  margin: 0 0 1rem;
}
.ecosystem-intro > p { font-size: 1.1rem; color: #505064; margin: 0; }
.supporters { display: grid; grid-template-columns: 1.3fr 1fr; gap: 1.25rem; }
.supporter {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 2rem;
  border-radius: 10px;
  background: white;
  border: 1px solid #e1e1ef;
  color: var(--text);
}
.supporter-primary { background: #1b3d5d; border-color: #1b3d5d; color: white; }
.supporter-flanders { border-top: 4px solid #f2cf35; padding-top: calc(2rem - 3px); }
.supporter-logo { display: flex; align-items: center; height: 5.5rem; width: 100%; margin-bottom: 1.75rem; }
.supporter-logo img { width: 100%; max-width: 18rem; max-height: 5.5rem; object-fit: contain; object-position: left center; }
.supporter-flanders .supporter-logo img { width: 11rem; }
.supporter h3 { color: inherit; font-size: 1.35rem; margin: 0; line-height: 1.3; }
.supporter p { margin: 0.75rem 0 1.5rem; }
.supporter-primary p { color: #e0e9f3; }
.org-link { margin-top: auto; font-size: 0.85rem; font-weight: 700; color: var(--primary-dark); }
.supporter-primary .org-link { color: white; }
.supporter:hover, .adopter:hover { text-decoration: none; color: var(--text); box-shadow: 0 8px 24px rgba(27, 30, 70, 0.1); }
.supporter-primary:hover { color: white; }
.supporter:hover .org-link, .adopter:hover .org-link { text-decoration: underline; }
.adopters-intro { margin: 2.5rem 0 1.25rem; }
.adopters-intro h3 { color: var(--text); font-size: 1.4rem; margin: 0 0 0.4rem; }
.adopters-intro p { margin: 0; color: #505064; }
.adopters { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.adopters li { display: flex; min-width: 0; }
.adopter { display: flex; flex-direction: column; width: 100%; padding: 1.25rem; background: white; border: 1px solid #e1e1ef; border-radius: 8px; color: var(--text); }
.adopter-logo { height: 5rem; display: flex; align-items: center; justify-content: center; margin-bottom: 1.25rem; }
.adopter-logo img { width: 100%; max-height: 4.5rem; object-fit: contain; }
.adopter h4 { font-size: 1rem; line-height: 1.4; margin: 0; }
.adopter p { font-size: 0.9rem; color: #505064; margin: 0.6rem 0 1.25rem; }
.adopter .org-link { font-size: 0.8rem; }
.ecosystem-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 1rem 1.5rem; margin-top: 2rem; font-weight: 700; }
.ecosystem-button { display: inline-flex; align-items: center; gap: 1rem; padding: 0.85rem 1.25rem; border-radius: 4px; background: var(--primary); color: white; }
.ecosystem-button:hover { background: var(--primary-dark); color: white; }
@media (max-width: 1050px) {
  .ecosystem { margin-left: 0; margin-right: 0; }
  .adopters { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .ecosystem { padding: 1.5rem; margin-top: 3rem; margin-bottom: 3rem; }
  .supporters { grid-template-columns: minmax(0, 1fr); }
  .supporter { padding: 1.5rem; }
  .supporter-flanders { padding-top: calc(1.5rem - 3px); }
  .adopters { grid-template-columns: minmax(0, 1fr); }
  .adopter { padding: 1.5rem; }
  .adopter-logo { justify-content: flex-start; }
  .adopter-logo img { width: auto; max-width: 100%; max-height: 4rem; }
}

/* Contextual research references */
.paper-citation {
  margin: 1.75rem 0;
  padding: 1.4rem 1.5rem;
  background: #f5f5fc;
  border: 1px solid #e1e1ef;
  border-left: 4px solid var(--primary);
  border-radius: 4px;
  overflow-wrap: anywhere;
}
.paper-citation .paper-citation-heading { margin: 0 0 0.6rem; color: var(--text); font-size: 1.1rem; font-weight: 700; }
.paper-citation .paper-citation-context { margin: 0 0 1rem; color: #505064; font-size: 0.95rem; }
.paper-citation .paper-citation-title { margin: 0 0 0.4rem; font-weight: 700; line-height: 1.4; }
.paper-citation-title cite { font-style: normal; }
.paper-citation .paper-citation-meta { margin: 0 0 1rem; font-size: 0.85rem; color: #62626d; }
.paper-citation-details { margin: 0.75rem 0 1rem; font-size: 0.9rem; }
.paper-citation-details summary { width: fit-content; cursor: pointer; color: var(--primary-dark); font-weight: 700; }
.paper-citation-details summary:hover { text-decoration: underline; }
.paper-citation .paper-citation-text { margin: 0.75rem 0; padding: 1rem; background: white; border: 1px solid #e1e1ef; user-select: all; }
.paper-citation-discover { font-size: 0.85rem; text-decoration: underline; }
@media (max-width: 640px) {
  .paper-citation { padding: 1.1rem; }
}