:root {
  --acn-bg: #030304;
  --acn-bg-2: #08080a;
  --acn-surface: #101013;
  --acn-surface-2: #16161a;
  --acn-border: rgba(255,255,255,.16);
  --acn-border-strong: rgba(255,255,255,.32);
  --acn-text: #f4f0e8;
  --acn-muted: #b9b0a4;
  --acn-faint: #756d66;
  --acn-red: #9d1117;
  --acn-red-2: #5d0608;
  --acn-red-3: #230305;
  --acn-gold: #ffd26a;
  --acn-cyan-shadow: #0f3a42;
  --acn-max: 1180px;
  --acn-narrow: 820px;
  --acn-radius: 22px;
  --acn-radius-sm: 12px;
  --acn-shadow: 0 24px 80px rgba(0,0,0,.55);
  --acn-font-display: Georgia, "Times New Roman", Times, serif;
  --acn-font-body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 74% 12%, rgba(140, 0, 7, .22), transparent 34rem),
    radial-gradient(circle at 12% 18%, rgba(255, 255, 255, .04), transparent 22rem),
    linear-gradient(180deg, #050506 0%, var(--acn-bg) 52%, #000 100%);
  color: var(--acn-text);
  font-family: var(--acn-font-body);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.012) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, #000 0, transparent 78%);
  z-index: 0;
}
.site-shell { position: relative; z-index: 1; min-height: 100vh; }
img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration-color: rgba(255,255,255,.35); text-underline-offset: .18em; }
a:hover, a:focus { color: #fff; text-decoration-color: var(--acn-gold); }
:focus-visible { outline: 3px solid var(--acn-gold); outline-offset: 4px; }
.container { width: min(var(--acn-max), calc(100% - 40px)); margin-inline: auto; }
.narrow { max-width: var(--acn-narrow); margin-inline: auto; }
.screen-reader-text {
  border: 0; clip: rect(1px, 1px, 1px, 1px); clip-path: inset(50%); height: 1px; margin: -1px;
  overflow: hidden; padding: 0; position: absolute !important; width: 1px; word-wrap: normal !important;
}
.screen-reader-text:focus {
  background: #fff; color: #000; clip: auto !important; clip-path: none; display: block; height: auto; left: 1rem;
  padding: 1rem; top: 1rem; width: auto; z-index: 100000;
}

.site-header {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(3,3,4,.86);
  border-bottom: 1px solid var(--acn-border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px 0; }
.brand-wrap { display: flex; flex-direction: column; gap: 2px; min-width: 220px; }
.site-logo, .custom-logo-link { display: inline-flex; align-items: center; max-width: 360px; background: transparent; }
.site-logo img, .custom-logo { display: block; width: auto; max-height: 62px; object-fit: contain; filter: none; }
.site-tagline { margin: 0; color: var(--acn-muted); font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; }
.header-actions { display: flex; align-items: center; justify-content: flex-end; gap: 10px; margin-left: auto; }
.primary-navigation .menu { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 2px; list-style: none; margin: 0; padding: 0; }
.primary-navigation a {
  display: block; padding: .62rem .68rem; border-radius: 999px; color: var(--acn-muted); text-decoration: none; font-weight: 700; font-size: .86rem;
}
.primary-navigation a:hover,
.primary-navigation .current-menu-item > a { background: rgba(255,255,255,.08); color: #fff; }
.header-locale .ns12lr-switcher-form { display: inline-flex; align-items: center; gap: 0; }
.header-locale .ns12lr-switcher-form select {
  min-height: 36px; max-width: 170px; padding: 0 34px 0 12px;
  border: 1px solid var(--acn-border); border-radius: 999px;
  background: rgba(255,255,255,.06); color: var(--acn-text);
  font: inherit; font-size: .84rem; font-weight: 800;
}
.header-locale .ns12lr-switcher-form select:focus { outline: 2px solid rgba(238,198,91,.45); outline-offset: 2px; }
.header-locale .ns12lr-switcher-form option { color: #111; background: #fff; }
.menu-toggle { display: none; appearance: none; border: 1px solid var(--acn-border); background: var(--acn-surface); border-radius: 12px; padding: .7rem; }
.menu-toggle span:not(.screen-reader-text) { display: block; width: 24px; height: 2px; margin: 4px 0; background: var(--acn-text); }
.header-rule { height: 2px; background: linear-gradient(90deg, transparent, var(--acn-red), #fff, var(--acn-red), transparent); opacity: .38; }

.site-main { padding: clamp(28px, 5vw, 76px) 0; }
.home-main { padding-top: 0; }
.hero-section { position: relative; overflow: hidden; padding: clamp(28px, 4vw, 52px) 0 clamp(36px, 7vw, 86px); border-bottom: 1px solid var(--acn-border); }
.hero-bg-seal {
  position: absolute; inset: 0 0 auto auto; width: min(72vw, 740px); aspect-ratio: 1;
  background: url('../img/foundation-seal-1024.jpg') center / cover no-repeat;
  opacity: .13; filter: grayscale(.15) contrast(1.1); mix-blend-mode: screen; transform: translate(8%, -18%); pointer-events: none;
}
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.22fr) minmax(280px, .78fr); gap: clamp(28px, 5vw, 70px); align-items: center; }
.kicker { margin: 0 0 .75rem; color: var(--acn-gold); text-transform: uppercase; letter-spacing: .18em; font-size: .76rem; font-weight: 900; }
h1, h2, h3, h4 { font-family: var(--acn-font-display); line-height: 1.08; letter-spacing: -.02em; color: var(--acn-text); }
h1 { font-size: clamp(2.45rem, 6vw, 5.8rem); margin: 0 0 1.25rem; }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); margin: 0 0 1rem; }
h3 { font-size: clamp(1.35rem, 2vw, 2rem); margin: 0 0 .75rem; }
p { margin-top: 0; }
.lead, .page-header > p, .section-header > p { color: var(--acn-muted); font-size: clamp(1.05rem, 1.8vw, 1.28rem); }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 1.5rem; }
.button,
button,
input[type="submit"],
.wp-block-button__link {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 44px; padding: .78rem 1.05rem; border: 1px solid rgba(255,255,255,.28); border-radius: 999px;
  background: linear-gradient(180deg, #cf1a21, #72080d); color: #fff; text-decoration: none; font-weight: 900; cursor: pointer;
  box-shadow: 0 12px 30px rgba(115, 7, 9, .28);
}
.button:hover, button:hover, input[type="submit"]:hover, .wp-block-button__link:hover { transform: translateY(-1px); color: #fff; }
.button-ghost { background: rgba(255,255,255,.06); color: var(--acn-text); box-shadow: none; }
.hero-panel { border: 1px solid var(--acn-border); border-radius: var(--acn-radius); background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.025)); box-shadow: var(--acn-shadow); padding: 20px; }
.seal-card { text-align: center; padding: clamp(16px, 3vw, 30px); border-radius: calc(var(--acn-radius) - 8px); background: radial-gradient(circle at center, rgba(125,0,8,.35), rgba(0,0,0,.2)); }
.seal-card img { width: min(280px, 80%); border-radius: 50%; filter: drop-shadow(0 0 30px rgba(255,255,255,.12)); }
.seal-card h2 { font-size: clamp(1.7rem, 2.4vw, 2.6rem); }
.seal-card p { color: var(--acn-muted); margin-bottom: 0; }

.section-band { padding: clamp(48px, 7vw, 92px) 0; }
.section-header { max-width: 780px; margin-bottom: 26px; }
.acn-card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: 18px; }
.post-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.acn-card-grid.four-up { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.acn-card, .mini-post-card, .post-card, .empty-state, .notice-box, .pdb-list, .pdb-single, .pdb-record, .pdb-signup, .acn-board-panel, .acn-member-panel {
  border: 1px solid var(--acn-border);
  border-radius: var(--acn-radius);
  background:
    linear-gradient(180deg, rgba(255,255,255,.065), rgba(255,255,255,.025)),
    radial-gradient(circle at 20% 0, rgba(130,0,10,.14), transparent 18rem);
  box-shadow: 0 18px 60px rgba(0,0,0,.32);
}
.acn-card, .mini-post-card, .empty-state, .notice-box, .acn-board-panel, .acn-member-panel { padding: clamp(18px, 2.5vw, 30px); }
.acn-card h3 a, .mini-post-card h3 a, .post-card h2 a { text-decoration: none; }
.acn-card p, .mini-post-card p { color: var(--acn-muted); }
.text-link { font-weight: 900; color: #fff; text-decoration: none; }
.text-link:hover { color: var(--acn-gold); }
.signal-strip { border-block: 1px solid var(--acn-border); background: linear-gradient(90deg, rgba(60,0,5,.42), rgba(255,255,255,.035), rgba(60,0,5,.42)); padding: clamp(44px, 6vw, 78px) 0; }
.split-section { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(26px, 5vw, 62px); align-items: center; }
.metric-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.metric-grid > div { padding: 22px; border: 1px solid var(--acn-border); border-radius: 18px; background: rgba(0,0,0,.22); }
.metric-grid strong { display: block; font-family: var(--acn-font-display); font-size: 1.6rem; }
.metric-grid span { color: var(--acn-muted); text-transform: uppercase; letter-spacing: .14em; font-size: .75rem; font-weight: 800; }

.section-directory,
.research-source-index,
.source-doc,
.editorial-callout {
  border: 1px solid var(--acn-border);
  border-radius: var(--acn-radius);
  background:
    linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.02)),
    radial-gradient(circle at 0 0, rgba(157,17,23,.1), transparent 24rem);
  box-shadow: 0 18px 60px rgba(0,0,0,.28);
  padding: clamp(20px, 3vw, 34px);
  margin: 1.5rem 0;
}
.section-directory-grid,
.topic-tree,
.source-file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: 14px;
  margin: 1.3rem 0 0;
}
.section-directory-card,
.topic-tree a,
.source-file-card {
  display: block;
  min-height: 100%;
  border: 1px solid var(--acn-border);
  border-radius: 16px;
  background: rgba(0,0,0,.24);
  padding: 18px;
  text-decoration: none;
}
.section-directory-card:hover,
.topic-tree a:hover,
.source-file-card:hover {
  border-color: var(--acn-border-strong);
  background: rgba(255,255,255,.055);
}
.section-directory-card strong,
.topic-tree strong,
.source-file-card strong {
  display: block;
  color: var(--acn-text);
  font-family: var(--acn-font-display);
  font-size: 1.22rem;
  line-height: 1.15;
  margin-bottom: .45rem;
}
.section-directory-card span,
.topic-tree span,
.source-file-card span,
.source-note {
  color: var(--acn-muted);
}
.source-note {
  border-left: 3px solid var(--acn-gold);
  padding-left: 1rem;
  margin: 1.25rem 0 0;
}
.source-doc {
  max-width: none;
}
.source-doc h1,
.source-doc h2,
.source-doc h3,
.source-doc h4 {
  letter-spacing: 0;
}
.source-doc h1 { font-size: clamp(2rem, 4vw, 3.8rem); }
.source-doc h2 { font-size: clamp(1.55rem, 3vw, 2.45rem); margin-top: 2.2rem; }
.source-doc h3 { font-size: clamp(1.2rem, 2vw, 1.65rem); margin-top: 1.6rem; }
.source-doc table {
  display: block;
  overflow-x: auto;
  white-space: normal;
}
.source-doc .missing-source {
  color: #ffd6d6;
  background: rgba(157,17,23,.22);
  border: 1px solid rgba(255,120,120,.28);
  border-radius: 12px;
  padding: 1rem;
}

.page-header { margin-bottom: clamp(28px, 5vw, 60px); }
.entry-content { font-size: 1.04rem; }
.entry-content a { color: #fff; }
.entry-content blockquote { border-left: 4px solid var(--acn-red); margin-left: 0; padding: .5rem 0 .5rem 1.4rem; color: var(--acn-muted); }
.entry-content code { background: rgba(255,255,255,.1); border: 1px solid var(--acn-border); border-radius: 6px; padding: .15rem .35rem; }
.entry-content pre { overflow: auto; padding: 1rem; background: #050506; border: 1px solid var(--acn-border); border-radius: 14px; }
.entry-content table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: .95rem; }
.entry-content th, .entry-content td { border: 1px solid var(--acn-border); padding: .8rem; vertical-align: top; }
.entry-content th { background: rgba(255,255,255,.08); }
.featured-media { max-width: 1080px; margin: 0 auto 32px; }
.featured-media img { border-radius: var(--acn-radius); border: 1px solid var(--acn-border); }
.entry-meta { display: flex; flex-wrap: wrap; gap: .5rem 1rem; color: var(--acn-muted); font-size: .88rem; margin-bottom: .75rem; }
.entry-meta span::before { content: "*"; color: var(--acn-red); margin-right: .4rem; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; color: var(--acn-muted); font-size: .85rem; margin-bottom: 28px; }
.breadcrumbs a { text-decoration: none; }

.post-list { display: grid; gap: 18px; }
.post-card { display: grid; grid-template-columns: 260px minmax(0, 1fr); overflow: hidden; }
.post-thumb img { width: 100%; height: 100%; min-height: 220px; object-fit: cover; display: block; }
.post-card-content { padding: clamp(18px, 3vw, 30px); }
.pagination, .nav-links { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: 28px; }
.page-numbers { padding: .55rem .8rem; border: 1px solid var(--acn-border); border-radius: 999px; text-decoration: none; }
.page-numbers.current { background: var(--acn-red); color: #fff; }

.process-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; counter-reset: process; }
.process-list li { counter-increment: process; padding: 20px; border: 1px solid var(--acn-border); border-radius: 18px; background: rgba(255,255,255,.04); }
.process-list li::before { content: counter(process, decimal-leading-zero); color: var(--acn-gold); font-weight: 900; margin-right: .75rem; }
.badge-list a, .post-categories a, .tag-list a { display: inline-flex; padding: .25rem .55rem; border: 1px solid var(--acn-border); border-radius: 999px; text-decoration: none; color: var(--acn-muted); margin: .15rem; }

/* Forms and Participants Database */
input[type="text"], input[type="email"], input[type="url"], input[type="password"], input[type="search"], input[type="number"], textarea, select {
  width: 100%; max-width: 100%; min-height: 44px; border: 1px solid var(--acn-border); border-radius: 12px;
  background: rgba(0,0,0,.42); color: var(--acn-text); padding: .75rem .85rem; font: inherit;
}
textarea { min-height: 150px; resize: vertical; }
label { display: block; font-weight: 800; margin-bottom: .35rem; }
.search-form { display: flex; gap: .5rem; align-items: stretch; }
.search-form label { margin: 0; flex: 1; }
.pdb-list, .pdb-single, .pdb-record, .pdb-signup { padding: clamp(18px, 3vw, 30px); margin: 1.5rem 0; }
.pdb-list table { width: 100%; border-collapse: collapse; }
.pdb-list th, .pdb-list td { border-bottom: 1px solid var(--acn-border); padding: .7rem; text-align: left; }
.pdb-list th { color: var(--acn-gold); text-transform: uppercase; letter-spacing: .08em; font-size: .78rem; }
.pdb-field, .form-field, .acn-form-row { margin-bottom: 1rem; }
.pdb-error, .error { color: #ffd6d6; background: rgba(157,17,23,.25); border: 1px solid rgba(255,120,120,.3); border-radius: 12px; padding: .85rem; }
.pdb-message, .success, .acn-success { color: #edffe4; background: rgba(64,150,52,.16); border: 1px solid rgba(173,255,150,.28); border-radius: 12px; padding: .85rem; }

/* Message board */
.acn-board { display: grid; gap: 18px; }
.acn-board-toolbar { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; align-items: center; }
.acn-thread-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.acn-thread-list li { padding: 18px; border: 1px solid var(--acn-border); border-radius: 16px; background: rgba(0,0,0,.24); }
.acn-thread-list h3 { margin-bottom: .3rem; font-size: 1.25rem; }
.acn-thread-list h3 a { text-decoration: none; }
.thread-meta { color: var(--acn-muted); font-size: .88rem; display: flex; flex-wrap: wrap; gap: .6rem; }
.thread-form { display: grid; gap: 1rem; }
.comment-list { list-style: none; padding-left: 0; display: grid; gap: 12px; }
.comment, .pingback, .trackback { border: 1px solid var(--acn-border); border-radius: 16px; padding: 16px; background: rgba(255,255,255,.035); }
.comment-meta { color: var(--acn-muted); font-size: .9rem; }
.comment-content { margin-top: 1rem; }
.comment-reply-link { font-weight: 900; }

.site-footer { border-top: 1px solid var(--acn-border); background: #020203; padding-top: clamp(36px, 6vw, 70px); }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr 1fr 1fr; gap: clamp(22px, 4vw, 48px); padding-bottom: 34px; }
.footer-brand .site-logo img { max-height: 56px; }
.footer-brand p, .footer-widget-area p { color: var(--acn-muted); }
.footer-links h2, .footer-widget-area h2 { font-size: 1.2rem; }
.footer-links ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem; }
.footer-links a { color: var(--acn-muted); text-decoration: none; }
.footer-bottom { border-top: 1px solid var(--acn-border); padding: 18px 0; display: flex; justify-content: space-between; gap: 20px; color: var(--acn-muted); font-size: .9rem; }
.footer-bottom p { margin: 0; }

.wp-block-separator { border-color: var(--acn-border); }
.wp-block-quote, .wp-block-pullquote { border-color: var(--acn-red); }
.wp-block-button__link { border-radius: 999px; }
.has-background { border-radius: var(--acn-radius-sm); padding: 1rem; }

@media (max-width: 980px) {
  .hero-grid, .split-section, .footer-grid { grid-template-columns: 1fr; }
  .acn-card-grid, .acn-card-grid.four-up, .post-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .post-card { grid-template-columns: 1fr; }
  .post-thumb img { max-height: 280px; }
  .header-inner { flex-wrap: wrap; gap: 12px; }
  .header-actions { order: 3; width: 100%; justify-content: flex-end; }
  .menu-toggle { display: inline-flex; flex-direction: column; }
  .primary-navigation { position: absolute; left: 20px; right: 20px; top: calc(100% + 8px); background: rgba(5,5,6,.98); border: 1px solid var(--acn-border); border-radius: 18px; padding: 12px; box-shadow: var(--acn-shadow); display: none; }
  .primary-navigation.is-open { display: block; }
  .primary-navigation .menu { flex-direction: column; align-items: stretch; }
  .primary-navigation a { border-radius: 12px; }
}
@media (max-width: 640px) {
  .container { width: min(100% - 28px, var(--acn-max)); }
  h1 { font-size: clamp(2.15rem, 12vw, 3.5rem); }
  .acn-card-grid, .acn-card-grid.four-up, .post-grid, .metric-grid { grid-template-columns: 1fr; }
  .search-form { flex-direction: column; }
  .site-logo img, .custom-logo { max-height: 48px; }
  .site-tagline { font-size: .68rem; }
  .header-locale .ns12lr-switcher-form select { max-width: 145px; }
  .footer-bottom { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}