/* ============================================================
   BPR — Design System
   Editorial meets operational. Warm paper, deep BPR green,
   muted tan accent, Newsreader serif + Switzer sans.
   ============================================================ */

:root {
  /* Brand palette — pulled from bprllc.com */
  --bpr-green: #0F7361;
  --bpr-green-dark: #0A5247;
  --bpr-green-deep: #073A32;
  --bpr-green-soft: #E8F0EE;
  --bpr-tan: #B8A579;
  --bpr-tan-dark: #8C7B53;
  --bpr-tan-soft: #F2EBDA;

  /* Surfaces */
  --paper: #FAF6F0;
  --paper-2: #F2EBDC;
  --paper-3: #E9DFC9;
  --ink: #1A1F1D;
  --ink-2: #3B4742;
  --ink-muted: #6E7872;
  --rule: #D9CFB8;
  --rule-soft: #EBE3CF;

  /* Typography */
  --serif: 'Newsreader', 'Iowan Old Style', Georgia, serif;
  --sans: 'Switzer', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', 'Menlo', monospace;

  /* Scale */
  --measure: 68ch;
  --gutter: clamp(20px, 4vw, 56px);
  --section-y: clamp(72px, 10vw, 140px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; display: block; }
a { color: var(--bpr-green); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--bpr-green-dark); }

/* ----------------------------------------------------------
   Typography
   ---------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 400;
  font-style: normal;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1.08;
  margin: 0 0 0.6em;
}
h1 { font-size: clamp(40px, 6.4vw, 84px); font-weight: 300; letter-spacing: -0.02em; }
h2 { font-size: clamp(30px, 4.2vw, 54px); font-weight: 300; }
h3 { font-size: clamp(22px, 2.4vw, 30px); font-weight: 400; }
h4 { font-size: clamp(17px, 1.4vw, 19px); font-weight: 500; font-family: var(--sans); letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-2); }

.script { font-family: var(--serif); font-style: italic; font-weight: 300; color: var(--bpr-green); letter-spacing: -0.01em; }

p { margin: 0 0 1.1em; max-width: var(--measure); }
p.lead { font-size: clamp(19px, 2vw, 23px); line-height: 1.5; color: var(--ink-2); max-width: 56ch; }

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bpr-tan-dark);
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--bpr-tan-dark);
}

.section-marker {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--bpr-tan-dark);
}

/* ----------------------------------------------------------
   Layout primitives
   ---------------------------------------------------------- */
.wrap { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 var(--gutter); }
.wrap-narrow { width: 100%; max-width: 920px; margin: 0 auto; padding: 0 var(--gutter); }
section { padding: var(--section-y) 0; }
.rule { height: 1px; background: var(--rule); border: 0; margin: 0; }
.rule-soft { height: 1px; background: var(--rule-soft); border: 0; margin: 0; }

/* ----------------------------------------------------------
   Header & Navigation
   ---------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 246, 240, 0.92);
  backdrop-filter: saturate(150%) blur(10px);
  -webkit-backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid var(--rule-soft);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 96px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.site-logo img { height: 64px; width: auto; }

.nav-primary {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-item {
  position: relative;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--ink);
  padding: 10px 14px;
  border-radius: 4px;
  transition: color .2s ease, background .2s ease;
  cursor: pointer;
}
.nav-link:hover, .nav-link.active { color: var(--bpr-green); background: var(--bpr-green-soft); }
.nav-link.has-children::after {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  margin-top: -3px;
  margin-left: 2px;
  opacity: 0.6;
}
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 6px;
  box-shadow: 0 24px 48px -16px rgba(7, 58, 50, 0.18), 0 4px 12px -4px rgba(7, 58, 50, 0.08);
  min-width: 280px;
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
}
.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-dropdown a {
  display: block;
  padding: 12px 14px;
  border-radius: 4px;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  transition: background .15s ease, color .15s ease;
}
.nav-dropdown a:hover { background: var(--bpr-green-soft); color: var(--bpr-green); }
.nav-dropdown a span {
  display: block;
  font-weight: 400;
  font-size: 12px;
  color: var(--ink-muted);
  margin-top: 2px;
}
.nav-dropdown a:hover span { color: var(--bpr-green-dark); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bpr-green);
  color: #fff !important;
  padding: 11px 18px;
  border-radius: 999px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  margin-left: 12px;
  transition: background .2s ease, transform .2s ease;
}
.nav-cta:hover { background: var(--bpr-green-dark); transform: translateY(-1px); }

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 6px;
  width: 44px;
  height: 44px;
  padding: 0;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.nav-toggle span { display: block; width: 18px; height: 1.5px; background: var(--ink); position: relative; }
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 100%; height: 1.5px; background: var(--ink);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }

@media (max-width: 1024px) {
  .nav-primary { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  body.nav-open .site-header {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  body.nav-open .nav-primary {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: fixed;
    top: 84px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--paper);
    padding: 24px var(--gutter) 48px;
    overflow-y: auto;
    border-top: 1px solid var(--rule-soft);
    gap: 4px;
  }
  body.nav-open .nav-item.open .nav-link.has-children::after { transform: rotate(-135deg); }
  body.nav-open .nav-dropdown {
    display: none;
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 0 0 0 16px;
    min-width: 0;
  }
  body.nav-open .nav-item.open .nav-dropdown { display: block; }
  body.nav-open .nav-cta {
    display: inline-flex;
    margin: 16px 0 0;
    align-self: flex-start;
  }
}

/* ----------------------------------------------------------
   Hero
   ---------------------------------------------------------- */
.hero {
  padding: clamp(80px, 11vw, 160px) 0 clamp(64px, 9vw, 120px);
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.hero-bg::before {
  content: "";
  position: absolute;
  top: -10%;
  right: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(circle at center, var(--bpr-green-soft) 0%, transparent 70%);
  opacity: 0.7;
}
.hero-bg::after {
  content: "";
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 50%;
  height: 60%;
  background: radial-gradient(circle at center, var(--bpr-tan-soft) 0%, transparent 70%);
  opacity: 0.6;
}
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { max-width: 18ch; margin-top: 18px; }
.hero h1 .script { display: block; margin-top: 8px; }
.hero p.lead { margin-top: 28px; max-width: 56ch; }
.hero .hero-meta {
  margin-top: 48px;
  display: flex;
  flex-wrap: wrap;
  gap: 32px 56px;
  padding-top: 32px;
  border-top: 1px solid var(--rule);
}
.hero-meta div { max-width: 32ch; }
.hero-meta dt {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bpr-tan-dark);
  margin-bottom: 8px;
}
.hero-meta dd {
  margin: 0;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-2);
}

/* ----------------------------------------------------------
   Section headers
   ---------------------------------------------------------- */
.section-head {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 48px;
  align-items: baseline;
  margin-bottom: 56px;
}
.section-head .section-marker { padding-top: 12px; }
.section-head h2 { max-width: 22ch; margin: 0; }
@media (max-width: 720px) {
  .section-head { grid-template-columns: 1fr; gap: 16px; }
}

/* ----------------------------------------------------------
   Cards / grids
   ---------------------------------------------------------- */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 64px);
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 40px);
}
@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; gap: 24px; }
}

.card {
  background: #fff;
  border: 1px solid var(--rule-soft);
  border-radius: 4px;
  padding: clamp(28px, 3vw, 40px);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 48px -24px rgba(7, 58, 50, 0.15);
  border-color: var(--bpr-tan);
}
.card .card-num {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--bpr-tan-dark);
  margin-bottom: 18px;
}
.card h3 { font-size: 24px; margin-bottom: 14px; }
.card p { font-size: 15px; line-height: 1.6; color: var(--ink-2); margin: 0; }

/* Proof / metric tiles */
.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule-soft);
  border-top: 1px solid var(--rule-soft);
  border-bottom: 1px solid var(--rule-soft);
}
.proof-tile {
  background: var(--paper);
  padding: 36px 28px;
}
.proof-tile .proof-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bpr-tan-dark);
  margin-bottom: 16px;
}
.proof-tile .proof-value {
  font-family: var(--serif);
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 300;
  color: var(--ink);
  line-height: 1.05;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.proof-tile .proof-note {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink-muted);
  line-height: 1.4;
  margin: 0;
}
@media (max-width: 900px) { .proof-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .proof-grid { grid-template-columns: 1fr; } }

/* ----------------------------------------------------------
   Capability stories (split layout)
   ---------------------------------------------------------- */
.story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 6vw, 96px);
  align-items: start;
  padding: clamp(48px, 7vw, 96px) 0;
  border-top: 1px solid var(--rule-soft);
}
.story:last-child { border-bottom: 1px solid var(--rule-soft); }
.story-meta { position: sticky; top: 110px; }
.story-meta .section-marker { display: block; margin-bottom: 18px; }
.story-meta h3 { font-size: clamp(28px, 3.4vw, 38px); margin-bottom: 18px; }
.story-meta .descriptor {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink-muted);
  font-style: italic;
  letter-spacing: 0.01em;
}
.story-body p { font-size: 16px; line-height: 1.65; }
.story-body ul {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
}
.story-body ul li {
  position: relative;
  padding: 14px 0 14px 28px;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-2);
  border-top: 1px solid var(--rule-soft);
}
.story-body ul li:first-child { border-top: 0; }
.story-body ul li::before {
  content: "—";
  position: absolute;
  left: 0;
  top: 14px;
  color: var(--bpr-tan-dark);
  font-family: var(--mono);
  font-size: 13px;
}
@media (max-width: 900px) {
  .story { grid-template-columns: 1fr; gap: 24px; }
  .story-meta { position: static; }
}

/* ----------------------------------------------------------
   Big quote / tagline
   ---------------------------------------------------------- */
.creed {
  text-align: center;
  padding: clamp(80px, 12vw, 160px) 0;
  background: var(--bpr-green);
  color: var(--paper);
  position: relative;
}
.creed::before, .creed::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  height: 24px;
  background: linear-gradient(var(--bpr-green-deep), transparent);
  opacity: 0.4;
}
.creed::before { top: 0; }
.creed::after { bottom: 0; transform: scaleY(-1); }
.creed .section-marker { color: var(--bpr-tan); }
.creed .quote {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(36px, 6vw, 72px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 32px auto 32px;
  max-width: 18ch;
  color: var(--paper);
}
.creed .attribution {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bpr-tan);
}

/* ----------------------------------------------------------
   Posture / position pages (Compliance, AI)
   ---------------------------------------------------------- */
.posture-hero {
  padding: clamp(72px, 10vw, 130px) 0 clamp(48px, 7vw, 88px);
  border-bottom: 1px solid var(--rule-soft);
}
.posture-hero .eyebrow { margin-bottom: 24px; }
.posture-hero h1 { max-width: 20ch; }
.posture-hero p.lead { margin-top: 28px; }

.posture-section { padding: clamp(48px, 7vw, 88px) 0; border-bottom: 1px solid var(--rule-soft); }
.posture-section:last-child { border-bottom: 0; }
.posture-section h2 { font-size: clamp(28px, 3.6vw, 44px); margin-bottom: 24px; }
.posture-section h3 { font-size: 20px; margin-top: 32px; margin-bottom: 8px; font-family: var(--sans); font-weight: 500; }
.posture-section p { font-size: 16px; line-height: 1.7; color: var(--ink-2); max-width: 62ch; }

.framework-list {
  list-style: none;
  padding: 0;
  margin: 32px 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: var(--rule-soft);
}
.framework-list li {
  background: var(--paper);
  padding: 24px;
}
.framework-list .fw-acronym {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--bpr-tan-dark);
  margin-bottom: 10px;
}
.framework-list .fw-name {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 400;
  color: var(--ink);
  line-height: 1.3;
}

.principle {
  padding: 32px 0;
  border-top: 1px solid var(--rule-soft);
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 32px;
  align-items: baseline;
}
.principle:first-of-type { border-top: 0; padding-top: 0; }
.principle .principle-num {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--bpr-tan-dark);
}
.principle h3 {
  margin-top: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 22px;
  letter-spacing: -0.01em;
}
.principle p { margin: 8px 0 0; }
@media (max-width: 720px) {
  .principle { grid-template-columns: 1fr; gap: 8px; }
}

/* ----------------------------------------------------------
   Affiliations / badges row
   ---------------------------------------------------------- */
.affil-row {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 56px;
  align-items: center;
  padding: 24px 0;
}
.affil-row--grid {
  display: grid;
  grid-template-columns: repeat(3, max-content);
  justify-content: start;
  gap: 18px 40px;
}
@media (max-width: 600px) {
  .affil-row--grid { grid-template-columns: repeat(2, max-content); }
}
.affil-row .badge {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
  padding: 10px 16px;
  border: 1px solid var(--rule);
  border-radius: 999px;
}

/* ----------------------------------------------------------
   Contact / CTA strip
   ---------------------------------------------------------- */
.cta-strip {
  background: var(--paper-2);
  padding: clamp(64px, 9vw, 120px) 0;
  border-top: 1px solid var(--rule-soft);
}
.cta-strip h2 { max-width: 18ch; }
.cta-strip .cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.cta-strip .cta-contact {
  display: grid;
  gap: 28px;
}
.cta-strip .cta-contact > div { display: grid; gap: 4px; }
.cta-strip .cta-contact .label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bpr-tan-dark);
}
.cta-strip .cta-contact .value {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 400;
  color: var(--ink);
}
.cta-strip .cta-contact a.value { color: var(--bpr-green); }
.cta-strip .cta-contact a.value:hover { color: var(--bpr-green-dark); }
@media (max-width: 900px) {
  .cta-strip .cta-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ----------------------------------------------------------
   Footer
   ---------------------------------------------------------- */
.site-footer {
  background: var(--bpr-green-deep);
  color: var(--paper-2);
  padding: 80px 0 32px;
}
.site-footer a { color: var(--paper-2); }
.site-footer a:hover { color: var(--bpr-tan); }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}
.footer-grid img { height: 72px; width: auto; filter: brightness(0) invert(1); opacity: 0.92; margin-bottom: 20px; }
.footer-grid p { font-size: 14px; line-height: 1.6; color: rgba(242, 235, 218, 0.7); max-width: 38ch; margin: 0; }
.footer-grid h5 {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bpr-tan);
  margin: 4px 0 16px;
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid ul li { margin-bottom: 10px; font-size: 13px; line-height: 1.5; }
.footer-grid ul a { font-family: var(--sans); font-size: 14px; }
.footer-meta {
  border-top: 1px solid rgba(184, 165, 121, 0.2);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-meta span {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(242, 235, 218, 0.5);
}
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ----------------------------------------------------------
   Placeholder banner (for unbuilt pages)
   ---------------------------------------------------------- */
.placeholder-banner {
  background: var(--bpr-tan-soft);
  border-bottom: 1px solid var(--bpr-tan);
  padding: 14px 0;
}
.placeholder-banner .wrap {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--bpr-tan-dark);
}
.placeholder-banner strong { font-weight: 500; text-transform: uppercase; letter-spacing: 0.16em; }

.outline-list {
  list-style: none;
  padding: 0;
  margin: 32px 0 0;
}
.outline-list li {
  padding: 18px 0;
  border-top: 1px solid var(--rule-soft);
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 20px;
}
.outline-list li:first-child { border-top: 0; padding-top: 0; }
.outline-list li::before {
  content: counter(item, decimal-leading-zero);
  counter-increment: item;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--bpr-tan-dark);
  padding-top: 4px;
}
.outline-list { counter-reset: item; }
.outline-list h4 {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 400;
  text-transform: none;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.outline-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-muted);
}

/* ----------------------------------------------------------
   Animations
   ---------------------------------------------------------- */
@media (prefers-reduced-motion: no-preference) {
  .fade-in {
    opacity: 0;
    transform: translateY(12px);
    animation: fadeIn 0.9s 0.1s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  }
  .fade-in-2 { animation-delay: 0.25s; }
  .fade-in-3 { animation-delay: 0.4s; }
  .fade-in-4 { animation-delay: 0.55s; }
  @keyframes fadeIn {
    to { opacity: 1; transform: translateY(0); }
  }
}

/* ----------------------------------------------------------
   Operating model flow (homepage overview)
   ---------------------------------------------------------- */
.model-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1.15fr;
  gap: clamp(12px, 1.6vw, 24px);
  align-items: stretch;
  margin-bottom: 32px;
}
.model-col { display: grid; gap: 16px; }
.model-node {
  background: #fff;
  border: 1px solid var(--rule-soft);
  border-radius: 6px;
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}
.model-node .model-kicker {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bpr-tan-dark);
  margin-bottom: 12px;
}
.model-node h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 22px;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 0 0 10px;
}
.model-node p {
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-2);
  margin: 0;
  max-width: none;
}
.model-node--hub {
  background: var(--bpr-green);
  border-color: var(--bpr-green-deep);
  box-shadow: 0 24px 48px -20px rgba(7, 58, 50, 0.25);
}
.model-node--hub .model-kicker { color: var(--bpr-tan-soft); }
.model-node--hub h3 { color: var(--paper); }
.model-node--hub p { color: rgba(242, 235, 218, 0.85); }
.model-arrow {
  align-self: center;
  font-family: var(--mono);
  font-size: 22px;
  color: var(--bpr-tan-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}
.model-return {
  margin-top: 24px;
  background: var(--bpr-green-soft);
  border-radius: 6px;
  padding: 18px 24px;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  color: var(--bpr-green-dark);
  display: flex;
  justify-content: center;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  text-align: center;
}
.model-return .model-return-kicker {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bpr-green);
  white-space: nowrap;
}
.model-return .model-return-text { margin: 0; max-width: none; }
@media (max-width: 900px) {
  .model-flow { grid-template-columns: 1fr; }
  .model-arrow { transform: rotate(90deg); justify-self: center; padding: 4px 0; }
}

/* ----------------------------------------------------------
   Operating cadence strip
   ---------------------------------------------------------- */
.cadence { background: var(--paper-2); }
.cadence-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: clamp(16px, 2vw, 32px);
  margin-top: 48px;
}
.cadence-step {
  position: relative;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
}
.cadence-step::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--bpr-green);
}
.cadence-step .step-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--bpr-tan-dark);
  display: block;
  margin-bottom: 10px;
}
.cadence-step h4 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 18px;
  text-transform: none;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 6px;
}
.cadence-step p {
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-muted);
  margin: 0;
  max-width: none;
}
@media (max-width: 900px) { .cadence-steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .cadence-steps { grid-template-columns: 1fr; } }

/* ----------------------------------------------------------
   Header custom mark (placeholder spiral + wordmark)
   + centered full-logo banner below the nav (static)
   ---------------------------------------------------------- */
.brand-mark { height: 42px; width: auto; flex-shrink: 0; display: block; }
.brand-mark-text {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 500;
  letter-spacing: 0.005em;
  color: var(--ink);
  line-height: 1;
}
.brand-banner {
  text-align: center;
  background: var(--paper);
  padding: clamp(22px, 2.6vw, 40px) 24px clamp(14px, 1.8vw, 27px);
}
.brand-banner a { display: inline-block; }
.brand-banner img { height: clamp(132px, 16vw, 180px); width: auto; }
.brand-banner + section { padding-top: 0; }
@media (max-width: 720px) {
  .brand-banner { padding: 18px 20px 12px; }
  .brand-banner img { height: clamp(104px, 28vw, 140px); }
  .brand-mark { height: 36px; }
  .brand-mark-text { font-size: 18px; }
}

/* Header lockup: BPR wordmark + creed micro-tagline */
.brand-lockup { display: flex; flex-direction: column; gap: 2px; line-height: 1; }
.brand-tag {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 12.5px;
  color: var(--ink-muted);
  line-height: 1;
}
@media (max-width: 720px) { .brand-tag { font-size: 11px; } }

/* ----------------------------------------------------------
   AI Posture: where AI is / where it isn't (at-a-glance split)
   ---------------------------------------------------------- */
.ai-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(18px, 3vw, 28px);
  margin-top: 36px;
}
.ai-col { border-radius: 6px; padding: clamp(24px, 3vw, 32px); }
.ai-col--use { background: var(--bpr-green-soft); }
.ai-col--not { background: var(--paper-2); border: 1px solid var(--rule); }
.ai-kicker {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bpr-green);
}
.ai-kicker--not { color: var(--bpr-tan-dark); }
.ai-col h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 21px;
  letter-spacing: -0.01em;
  text-transform: none;
  margin: 10px 0 0;
  color: var(--ink);
}
.ai-list { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 13px; }
.ai-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 15px;
  line-height: 1.45;
  color: var(--ink-2);
  max-width: none;
}
.ai-ico { flex-shrink: 0; margin-top: 3px; }
.ai-col--use .ai-ico { color: var(--bpr-green); }
.ai-col--not .ai-ico { color: var(--bpr-tan-dark); }
@media (max-width: 760px) { .ai-split { grid-template-columns: 1fr; } }

/* Single-path (3-node) model variant for service pages */
.model-flow--linear { grid-template-columns: 1fr auto 1fr auto 1fr; }
@media (max-width: 900px) { .model-flow--linear { grid-template-columns: 1fr; } }

/* Scroll-reveal: progressive enhancement, JS adds .reveal only when motion is allowed */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s cubic-bezier(.22,1,.36,1), transform .7s cubic-bezier(.22,1,.36,1); }
  .reveal.is-visible { opacity: 1; transform: none; }
}

/* Interior pull-quote band (lighter cousin of the homepage creed) */
.pullband {
  background: var(--bpr-green);
  color: var(--paper);
  text-align: center;
  padding: clamp(56px, 9vw, 104px) 0;
}
.pullband .pull-quote {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(27px, 4.2vw, 50px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--paper);
  max-width: 24ch;
  margin: 0 auto;
}