:root{
  --bg:#f5f7fb;
  --surface:#ffffff;
  --surface-soft:#fbfcfe;
  --ink:#101827;
  --ink-soft:#425168;
  --muted:#6a768a;
  --line:#dbe2ec;
  --line-strong:#c9d4e4;
  --blue:#173f78;
  --blue-deep:#12315e;
  --blue-soft:#eef4fb;
  --blue-line:#c7d6eb;
  --success:#255c2b;
  --success-bg:#f2fbf3;
  --success-line:#cfe3d1;
  --draft:#7a5b16;
  --draft-bg:#fff8e7;
  --draft-line:#e5d8b6;
  --controlled:#49546a;
  --controlled-bg:#f6f7fc;
  --controlled-line:#d7d9e8;
  --shadow:0 16px 36px rgba(16,24,39,.06);
  --radius:18px;
  --radius-sm:12px;
  --serif: Georgia, "Times New Roman", Times, serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:linear-gradient(180deg,#f6f8fb 0%,#f3f6fa 100%);color:var(--ink)}
body{font-family:var(--sans);line-height:1.64;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}

.page-shell{max-width:1460px;margin:0 auto;padding:0 28px}
.page-frame{padding:28px 0 50px}

.site-header{
  position:sticky;top:0;z-index:40;
  border-bottom:1px solid rgba(201,212,228,.86);
  backdrop-filter: blur(8px);
  background:rgba(246,248,251,.88);
}
.site-header-inner{
  display:flex;align-items:flex-end;justify-content:space-between;gap:28px;
  padding:22px 0 18px;
}
.brand-wrap{display:flex;flex-direction:column;gap:6px;min-width:280px}
.brand-title{
  font-family:var(--serif);font-size:30px;line-height:1;letter-spacing:-.02em;color:var(--ink)
}
.brand-subtitle{
  font-size:14px;line-height:1.55;color:var(--muted);max-width:620px
}
.nav{display:flex;flex-wrap:wrap;gap:20px;align-items:center}
.nav-link{
  font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-soft);
  padding:8px 0;border-bottom:2px solid transparent
}
.nav-link.active{color:var(--blue);border-bottom-color:var(--blue);font-weight:700}

.hero{padding:52px 0 18px}
.hero.slim{padding:34px 0 8px}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.9fr) minmax(340px,.92fr);
  gap:42px;
  align-items:start;
}
.hero-mark{
  width:92px;height:5px;border-radius:999px;background:var(--blue);margin-bottom:18px
}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;color:var(--ink);margin:0}
h1{font-size:66px;line-height:1.02;letter-spacing:-.04em;max-width:920px}
.hero.slim h1{font-size:46px}
h2{font-size:30px;line-height:1.12;letter-spacing:-.025em}
h3{font-size:22px;line-height:1.18}
p{margin:0 0 14px}
.lede{
  max-width:880px;
  margin-top:18px;
  font-size:20px;
  line-height:1.72;
  color:var(--ink-soft);
}
.eyebrow{
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  font-weight:700;
  color:var(--blue);
  margin-bottom:10px;
}
.small{font-size:13.5px;color:var(--muted)}
.hero-note{
  padding:22px 22px 20px;
  border:1px solid var(--blue-line);
  border-radius:22px;
  background:linear-gradient(180deg,var(--surface) 0%, var(--blue-soft) 100%);
  box-shadow:var(--shadow)
}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.button{
  display:inline-flex;align-items:center;justify-content:center;min-height:46px;
  padding:0 16px;border-radius:999px;border:1px solid var(--line-strong);
  background:var(--surface);color:var(--ink);font-size:14px;font-weight:600;
  box-shadow:0 1px 0 rgba(16,24,39,.03)
}
.button:hover{text-decoration:none;background:#fafbfd}
.button-primary{background:var(--blue);border-color:var(--blue);color:#fff}
.button-primary:hover{background:var(--blue-deep)}
.button-ghost{background:transparent}

.section-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:20px
}
.card,.panel,.doc,.path-step,.sequence-item{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  box-shadow:var(--shadow);
}
.card,.panel{padding:24px 24px 22px}
.card h2,.card h3,.panel h2,.panel h3{margin-bottom:12px}
.card ul,.panel ul{margin:12px 0 0 18px;padding:0}
.card li,.panel li{margin:8px 0;color:var(--ink-soft)}
.card.callout-card{
  background:linear-gradient(180deg,var(--surface) 0%, var(--blue-soft) 100%);
  border-color:var(--blue-line)
}

.reading-path{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:18px
}
.path-step{padding:18px 18px 16px;background:var(--surface-soft)}
.step-number{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:999px;
  background:var(--blue-soft);border:1px solid var(--blue-line);color:var(--blue);
  font-size:13px;font-weight:700;margin-bottom:12px
}
.path-step p{margin-top:6px;color:var(--ink-soft);font-size:14px}

.split-band{
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.82fr);gap:20px;margin-top:20px
}

.metric-list{display:grid;gap:12px}
.metric{border-top:1px solid var(--line);padding-top:12px}
.metric:first-child{border-top:none;padding-top:0}
.metric-label{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700}
.metric-value{font-family:var(--serif);font-size:24px;margin-top:4px}

.doc-toolbar{
  display:flex;justify-content:space-between;align-items:flex-end;gap:20px;
  margin-top:12px;margin-bottom:18px
}
.doc-toolbar .small{max-width:760px}

.shelf{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  margin-top:12px
}
.doc{padding:20px 20px 18px}
.doc.wide{grid-column:1/-1}
.doc.primary{
  border-color:var(--blue-line);
  background:linear-gradient(180deg,var(--surface) 0%, #f8fbff 100%)
}
.doc-head{display:flex;justify-content:space-between;gap:18px;align-items:start}
.doc-title{font-size:24px;line-height:1.14}
.doc-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.pill{
  display:inline-flex;align-items:center;height:28px;padding:0 10px;border-radius:999px;
  border:1px solid var(--line);background:#f7f9fc;color:var(--ink-soft);
  font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;font-weight:700
}
.pill-blue{border-color:var(--blue-line);background:var(--blue-soft);color:var(--blue)}
.pill-issued{border-color:var(--success-line);background:var(--success-bg);color:var(--success)}
.pill-draft{border-color:var(--draft-line);background:var(--draft-bg);color:var(--draft)}
.pill-controlled{border-color:var(--controlled-line);background:var(--controlled-bg);color:var(--controlled)}
.doc-desc{margin-top:14px;color:var(--ink-soft)}
.doc-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.doc-link{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line-strong);background:var(--surface);color:var(--ink);font-size:13px;font-weight:600
}
.doc-link:hover{text-decoration:none;background:#fafbfd}
.doc-link.primary{background:var(--blue);border-color:var(--blue);color:white}
.doc-link.primary:hover{background:var(--blue-deep)}
.doc-note{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}

.status-list{display:grid;gap:14px}
.status-item{
  display:grid;grid-template-columns:220px 1fr;gap:20px;
  border-top:1px solid var(--line);padding-top:14px
}
.status-item:first-child{border-top:none;padding-top:0}
.status-item-title{font-weight:700;color:var(--ink)}

.proof-sequence{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:16px}
.sequence-item{grid-template-columns:84px 1fr;gap:18px;display:grid;padding:18px;background:var(--surface-soft)}
.sequence-num{font-family:var(--serif);font-size:32px;color:var(--blue);line-height:1}
.sequence-item p{margin-top:4px;color:var(--ink-soft)}

.notice{
  margin-top:16px;padding:16px 18px;border:1px dashed var(--blue-line);
  border-radius:var(--radius-sm);background:var(--blue-soft)
}

.footer{
  border-top:1px solid var(--line);
  padding:28px 0 10px;
  margin-top:34px;
  color:var(--muted);
  font-size:13.5px
}
.footer a{color:var(--blue)}
.footer-inner{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:flex-start
}
.footer-meta{max-width:680px}

@media (max-width:1180px){
  .hero-grid,.split-band,.reading-path,.section-grid,.proof-sequence{grid-template-columns:1fr}
  .shelf{grid-template-columns:1fr}
  h1{font-size:52px}
  .hero.slim h1{font-size:40px}
}
@media (max-width:860px){
  .site-header-inner{flex-direction:column;align-items:flex-start}
  .nav{gap:14px}
  .status-item{grid-template-columns:1fr}
}
@media (max-width:640px){
  .page-shell{padding:0 18px}
  .page-frame{padding:18px 0 34px}
  h1{font-size:38px}
  .hero.slim h1{font-size:30px}
  .lede{font-size:18px}
  .card,.panel,.doc,.path-step,.sequence-item{padding:18px}
  .doc-head{flex-direction:column}
  .brand-title{font-size:25px}
  .brand-subtitle{font-size:13px}
}

/* v1.5 publication shelf additions */
.shelf-section{
  margin-top:22px;
}
.shelf-heading{
  display:flex;
  justify-content:space-between;
  gap:24px;
  align-items:flex-end;
  margin:8px 0 14px;
}
.shelf-heading h2{
  margin:0;
}
.shelf-heading .small{
  max-width:620px;
  text-align:right;
}
.sequence-link{
  color:var(--ink);
  text-decoration:none;
}
.sequence-link:hover{
  text-decoration:none;
  border-color:var(--blue-line);
  background:linear-gradient(180deg,var(--surface) 0%, var(--blue-soft) 100%);
}
.sequence-link:hover h3{
  color:var(--blue);
}
@media (max-width:860px){
  .shelf-heading{flex-direction:column;align-items:flex-start}
  .shelf-heading .small{text-align:left;max-width:100%}
}