:root {
  --ink: #0d1b2a;
  --text: #334a63;
  --muted: #6b7f93;
  --blue: #1767a7;
  --blue-dark: #0b4f86;
  --blue-soft: #eaf4fb;
  --line: #d9e4ed;
  --panel: #ffffff;
  --wash: #f5f9fc;
  --green: #16845b;
  --green-soft: #e8f6ef;
  --amber: #9a6611;
  --amber-soft: #fff6df;
  --shadow: 0 18px 44px rgba(29, 71, 105, 0.08);
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: "Segoe UI", Inter, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
button, input, textarea { font: inherit; }
.container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }

.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(217,228,237,.9);
}
.nav-wrap { min-height: 76px; display:flex; align-items:center; justify-content:space-between; gap:32px; }
.brand { display:flex; align-items:center; gap:12px; font-weight:700; font-size:1.35rem; letter-spacing:-.02em; }
.brand-mark {
  width: 38px; height:38px; display:grid; place-items:center;
  color:#fff; background:linear-gradient(145deg, var(--blue), var(--blue-dark));
  border-radius:10px; font-size:.86rem; letter-spacing:.06em;
  box-shadow: 0 8px 24px rgba(23,103,167,.2);
}
.main-nav { display:flex; align-items:center; gap:26px; color:#38516a; font-size:.95rem; }
.main-nav a { position:relative; padding:8px 0; }
.main-nav a::after {
  content:""; position:absolute; left:0; right:100%; bottom:1px; height:2px; background:var(--blue);
  transition:right .2s ease;
}
.main-nav a:hover::after, .main-nav a.active::after { right:0; }
.menu-toggle { display:none; border:0; background:transparent; font-size:1.5rem; color:var(--ink); }

.hero {
  position:relative; overflow:hidden;
  background:linear-gradient(115deg,#fff 0%,#f8fbfe 54%,#eef6fb 100%);
  border-bottom:1px solid var(--line);
}
.hero::before {
  content:""; position:absolute; inset:0; pointer-events:none; opacity:.32;
  background-image:linear-gradient(rgba(23,103,167,.05) 1px, transparent 1px),linear-gradient(90deg,rgba(23,103,167,.05) 1px,transparent 1px);
  background-size:36px 36px; mask-image:linear-gradient(to right,transparent 0%,#000 50%,#000 100%);
}
.hero-grid { min-height:540px; display:grid; grid-template-columns:1.05fr .95fr; align-items:center; gap:56px; padding:76px 0 66px; position:relative; z-index:1; }
.eyebrow {
  color:var(--blue-dark); font-size:.78rem; font-weight:700; letter-spacing:.16em; text-transform:uppercase;
  margin:0 0 16px;
}
h1,h2,h3 { line-height:1.08; letter-spacing:-.035em; margin-top:0; }
.hero h1 { font-size:clamp(3.8rem,7vw,6.6rem); margin-bottom:12px; }
.hero h1 span { color:var(--blue); }
.hero-lede { font-size:clamp(1.25rem,2.2vw,1.85rem); color:#334b64; margin:0 0 8px; letter-spacing:-.02em; }
.hero-meta { color:#60768b; font-size:1.05rem; margin:0 0 30px; }
.actions { display:flex; gap:14px; flex-wrap:wrap; }
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  min-height:46px; padding:0 20px; border-radius:7px; border:1px solid var(--blue);
  font-weight:650; transition:.18s ease;
}
.btn.primary { color:#fff; background:linear-gradient(180deg,var(--blue),var(--blue-dark)); box-shadow:0 10px 24px rgba(23,103,167,.18); }
.btn.secondary { color:var(--blue-dark); background:#fff; }
.btn:hover { transform:translateY(-1px); box-shadow:0 10px 22px rgba(28,70,103,.12); }
.hero-art { position:relative; min-height:380px; display:grid; place-items:center; }
.hero-note {
  position:absolute; right:0; top:10px; max-width:190px; padding-left:16px;
  border-left:2px solid var(--blue); color:#4e6982; font-size:.9rem; line-height:1.35;
}
.engineering-plate {
  width:100%; border-radius:18px; border:1px solid #dbe8f1;
  background:linear-gradient(145deg,rgba(255,255,255,.92),rgba(235,246,252,.88));
  box-shadow:var(--shadow); overflow:hidden;
}
.engineering-plate .plate-label {
  display:flex; align-items:center; justify-content:space-between; padding:14px 18px;
  border-bottom:1px solid #dce8f0; color:#587087; font:600 .75rem/1.2 "Cascadia Mono",Consolas,monospace; letter-spacing:.06em;
}
.engineering-plate svg { width:100%; height:auto; }

.status-bar { background:#f7fafc; border-bottom:1px solid var(--line); }
.status-grid { display:grid; grid-template-columns:repeat(3,1fr); }
.status-item { display:flex; align-items:center; gap:15px; padding:21px 22px; border-right:1px solid var(--line); }
.status-item:last-child { border-right:0; }
.status-icon {
  width:38px; height:38px; flex:0 0 auto; display:grid; place-items:center; border-radius:10px;
  color:var(--blue); background:#eaf4fb; font:700 .78rem/1 "Cascadia Mono",Consolas,monospace;
}
.status-copy strong { display:block; font-size:.92rem; }
.status-copy span { color:#667b8f; font-size:.82rem; }

.section { padding:76px 0; }
.section.soft { background:var(--wash); border-block:1px solid #e7eef4; }
.section-head { display:flex; justify-content:space-between; gap:30px; align-items:end; margin-bottom:28px; }
.section-head h2 { font-size:clamp(2rem,4vw,3rem); margin:0; }
.section-head p { max-width:640px; color:var(--text); margin:8px 0 0; }
.text-link { color:var(--blue-dark); font-weight:650; white-space:nowrap; }
.text-link:hover { text-decoration:underline; }

.card-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.project-card, .resource-card, .metric-card, .content-card {
  background:var(--panel); border:1px solid var(--line); border-radius:13px; box-shadow:0 8px 28px rgba(26,68,103,.045);
}
.project-card { padding:26px; display:flex; flex-direction:column; min-height:300px; }
.card-top { display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:30px; }
.card-kicker { color:#71879a; font:600 .72rem/1.2 "Cascadia Mono",Consolas,monospace; letter-spacing:.08em; }
.badge { display:inline-flex; align-items:center; min-height:28px; padding:0 10px; border-radius:999px; font:700 .68rem/1 "Cascadia Mono",Consolas,monospace; letter-spacing:.08em; text-transform:uppercase; }
.badge.valid { color:var(--green); background:var(--green-soft); }
.badge.rd { color:var(--blue-dark); background:var(--blue-soft); }
.badge.open { color:#69551b; background:#fff7d8; }
.project-card h3 { font-size:1.55rem; margin:0 0 10px; }
.project-card p { color:var(--text); margin:0 0 24px; }
.card-facts { margin-top:auto; padding-top:18px; border-top:1px solid #e6edf3; color:#667c90; font:500 .78rem/1.55 "Cascadia Mono",Consolas,monospace; }
.card-link { display:inline-flex; align-items:center; gap:8px; color:var(--blue-dark); font-weight:650; margin-top:20px; }
.card-link:hover { text-decoration:underline; }

.resource-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
.resource-card { padding:22px 24px; display:flex; gap:16px; align-items:flex-start; }
.resource-icon { width:42px; height:42px; border-radius:10px; background:#eef5fa; display:grid; place-items:center; color:var(--blue); flex:0 0 auto; font-weight:800; }
.resource-card h3 { font-size:1.05rem; margin:1px 0 4px; letter-spacing:-.02em; }
.resource-card p { color:#667b8e; font-size:.9rem; margin:0; }

.page-hero { padding:72px 0 54px; background:linear-gradient(135deg,#fff,#f1f8fc); border-bottom:1px solid var(--line); }
.page-hero .wrap { max-width:850px; }
.page-hero h1 { font-size:clamp(3rem,6vw,5.1rem); margin-bottom:16px; }
.page-hero p { max-width:760px; color:var(--text); font-size:1.15rem; margin:0; }
.breadcrumb { color:#6c8295; font-size:.86rem; margin-bottom:18px; }
.breadcrumb a { color:var(--blue-dark); }

.metrics { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-top:-28px; position:relative; z-index:3; }
.metric-card { padding:22px; }
.metric-value { font-size:1.75rem; font-weight:750; color:var(--ink); letter-spacing:-.03em; }
.metric-label { color:#708598; font-size:.82rem; margin-top:3px; }

.prose-grid { display:grid; grid-template-columns:minmax(0,1fr) 330px; gap:54px; align-items:start; }
.prose { color:#30475e; }
.prose h2 { color:var(--ink); font-size:2rem; margin:0 0 16px; }
.prose h3 { color:var(--ink); font-size:1.3rem; margin:34px 0 10px; }
.prose p { margin:0 0 18px; }
.prose ul { padding-left:20px; }
.prose li { margin:8px 0; }
.sidebar { position:sticky; top:100px; }
.sidebar .content-card { padding:22px; margin-bottom:16px; }
.content-card h3 { font-size:1.02rem; margin-bottom:12px; }
.content-card p, .content-card li { color:#60768a; font-size:.9rem; }
.content-card ul { margin:0; padding-left:18px; }

.flow { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; counter-reset:flow; }
.flow-step { border-top:3px solid #9ac4df; padding:18px 18px 22px; background:#fff; border-radius:0 0 10px 10px; box-shadow:0 8px 28px rgba(26,68,103,.04); }
.flow-step::before { counter-increment:flow; content:"0" counter(flow); color:#7290a8; font:600 .75rem/1 "Cascadia Mono",Consolas,monospace; }
.flow-step h3 { font-size:1.12rem; margin:15px 0 8px; }
.flow-step p { color:#61788c; margin:0; font-size:.9rem; }

.research-programmes { display:grid; gap:26px; }
.programme { border:1px solid var(--line); border-radius:15px; background:#f9fcfe; padding:28px; }
.programme-working { background:#fff; }
.programme-head { display:flex; align-items:flex-start; justify-content:space-between; gap:24px; margin-bottom:20px; }
.programme-head h3 { font-size:1.75rem; margin:4px 0 8px; }
.programme-head p { max-width:780px; color:#536b80; margin:0; }
.programme-kicker { color:#658097; font:650 .72rem/1.4 "Cascadia Mono",Consolas,monospace; letter-spacing:.08em; }
.programme-count { flex:0 0 auto; color:var(--blue-dark); background:var(--blue-soft); border-radius:999px; padding:7px 11px; font:700 .7rem/1 "Cascadia Mono",Consolas,monospace; }
.publication-list { display:grid; gap:12px; }
.publication { padding:22px 24px; border:1px solid var(--line); border-radius:12px; background:#fff; }
.publication.primary-record { border-left:4px solid var(--blue); }
.record-top { display:flex; align-items:center; justify-content:space-between; gap:16px; margin-bottom:10px; }
.record-role { color:#fff; background:var(--blue); border-radius:999px; padding:5px 9px; font:700 .67rem/1 "Cascadia Mono",Consolas,monospace; letter-spacing:.04em; text-transform:uppercase; }
.record-role.companion { background:#566d80; }
.record-role.support { background:#5a7186; }
.record-role.evidence { background:#2e7b60; }
.record-date { color:#74899b; font-size:.78rem; white-space:nowrap; }
.publication h4 { font-size:1.18rem; line-height:1.3; letter-spacing:-.02em; margin:0 0 8px; }
.publication p { color:#536b80; margin:0; }
.record-actions { display:flex; align-items:center; gap:14px; flex-wrap:wrap; margin-top:15px; padding-top:13px; border-top:1px solid #e8eef3; }
.record-link { color:var(--blue-dark); font-weight:700; }
.record-link:hover { text-decoration:underline; }
.doi { color:#74899b; font:500 .74rem/1.4 "Cascadia Mono",Consolas,monospace; }
.pending { display:inline-block; color:#7d6840; background:#fff8e4; border-radius:6px; padding:6px 9px; font-size:.76rem; font-weight:650; }
.public-links { display:flex; flex-wrap:wrap; gap:10px 16px; margin-top:16px; }
.public-links a { color:var(--blue-dark); font-weight:700; }
.public-links a:hover { text-decoration:underline; }

.callout { border-left:4px solid var(--blue); background:#eff7fc; padding:22px 24px; border-radius:0 10px 10px 0; color:#35536d; }
.callout strong { color:var(--ink); }

.contact-grid { display:grid; grid-template-columns:1fr 1fr; gap:22px; }
.contact-card { padding:28px; border:1px solid var(--line); border-radius:13px; background:#fff; }
.contact-card h2 { font-size:1.7rem; margin-bottom:12px; }
.contact-card p { color:#526b80; }
.contact-email { color:var(--blue-dark); font-weight:700; font-size:1.1rem; }

.site-footer { border-top:1px solid var(--line); background:#fff; padding:34px 0; }
.footer-grid { display:flex; justify-content:space-between; gap:30px; align-items:flex-start; }
.footer-brand { font-weight:700; font-size:1.05rem; }
.footer-copy { color:#73879a; font-size:.82rem; margin-top:6px; }
.footer-links { display:flex; flex-wrap:wrap; justify-content:flex-end; gap:16px; color:#536a7e; font-size:.85rem; }
.mono { font-family:"Cascadia Mono",Consolas,monospace; }
.small { font-size:.84rem; color:#708598; }

@media (max-width: 900px) {
  .main-nav { display:none; position:absolute; top:76px; left:0; right:0; padding:18px 24px 24px; background:#fff; border-bottom:1px solid var(--line); flex-direction:column; align-items:flex-start; gap:8px; }
  .main-nav.open { display:flex; }
  .menu-toggle { display:block; }
  .hero-grid { grid-template-columns:1fr; min-height:auto; padding-top:56px; }
  .hero-art { min-height:300px; }
  .status-grid, .card-grid, .resource-grid, .metrics, .flow { grid-template-columns:1fr 1fr; }
  .status-item:nth-child(2) { border-right:0; }
  .prose-grid { grid-template-columns:1fr; }
  .sidebar { position:static; }
}
@media (max-width: 620px) {
  .container { width:min(calc(100% - 28px),var(--max)); }
  .hero h1 { font-size:3.35rem; }
  .hero-grid { gap:30px; }
  .hero-note { display:none; }
  .status-grid, .card-grid, .resource-grid, .metrics, .flow, .contact-grid { grid-template-columns:1fr; }
  .programme-head, .record-top { flex-direction:column; align-items:flex-start; }
  .record-date { white-space:normal; }
  .status-item { border-right:0; border-bottom:1px solid var(--line); }
  .status-item:last-child { border-bottom:0; }
  .section { padding:56px 0; }
  .section-head { align-items:flex-start; flex-direction:column; }
  .footer-grid { flex-direction:column; }
  .footer-links { justify-content:flex-start; }
}

/* responsive/hero QA corrections */
.hero-copy,.hero-art,.engineering-plate { min-width:0; }
@media (min-width: 901px) {
  .hero-art { padding-top:48px; }
  .hero-note { top:0; right:4px; }
}
@media (max-width: 620px) {
  html,body { overflow-x:hidden; }
  .hero h1 { font-size:clamp(2.75rem,14vw,3.35rem); }
  .hero-lede { font-size:1.18rem; }
  .hero-meta { font-size:.94rem; line-height:1.65; }
  .engineering-plate .plate-label { gap:10px; font-size:.64rem; letter-spacing:.035em; }
  .engineering-plate .plate-label span:last-child { display:none; }
  .engineering-plate svg { display:block; }
  .section-head h2 { font-size:clamp(1.9rem,10vw,2.45rem); }
}