.site-header { position: sticky; z-index: 100; top: 0; border-bottom: 1px solid rgba(255,255,255,0.12); color: var(--white); background: var(--navy-950); }
.header-inner { display: flex; min-height: 76px; align-items: center; justify-content: space-between; gap: var(--space-5); }
.site-header .brand { color: var(--white); }
.site-header .brand strong { color: var(--gold-300); }
.site-header .brand img { padding: 3px; border: 1px solid rgba(201,162,75,0.78); border-radius: var(--radius-sm); background: var(--beige-50); box-shadow: 0 0 0 3px rgba(250,248,244,0.08), 0 4px 14px rgba(0,0,0,0.22); }
.site-nav { display: flex; align-items: center; gap: 1.5rem; font-size: 0.9rem; font-weight: 650; }
.site-nav > a:not(.button):hover { color: var(--gold-300); }
.menu-toggle { display: none; color: var(--white); background: transparent; border-color: rgba(255,255,255,0.35); }
.hero { position: relative; overflow: hidden; min-height: calc(100vh - 76px); padding: 5rem 0 0; color: var(--white); background: var(--navy-950); }
.hero::after { position: absolute; inset: auto 0 0; height: 26%; background: var(--beige-50); content: ""; }
.hero-inner { position: relative; z-index: 1; text-align: center; }
.hero-brand-lockup { display: grid; justify-items: center; gap: 0.75rem; margin: 0 auto 1rem; }
.hero-brand-lockup span { display: grid; width: 124px; height: 124px; place-items: center; border: 1px solid var(--gold-500); border-radius: 50%; background: var(--beige-50); box-shadow: 0 14px 36px rgba(0,0,0,0.22); }
.hero-brand-lockup img { width: 106px; height: 106px; object-fit: contain; }
.hero-brand-lockup p { margin: 0; color: var(--gold-300); font-size: 1rem; font-weight: 750; }
.hero .eyebrow { color: var(--gold-300); }
.hero h1 { max-width: 930px; margin: 0 auto var(--space-5); color: var(--white); font-size: clamp(2.8rem, 6.5vw, 5.6rem); }
.hero-copy { max-width: 760px; margin: 0 auto var(--space-6); color: #dce2e6; font-size: 1.15rem; }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: var(--space-5); margin-bottom: var(--space-4); }
.prototype-note { margin-bottom: var(--space-7); color: #aeb8bf; font-size: 0.84rem; }
.hero-preview { position: relative; z-index: 2; width: min(100%, 1020px); margin: 0 auto; padding: var(--space-5); border: 1px solid rgba(255,255,255,0.18); border-radius: var(--radius-md) var(--radius-md) 0 0; color: var(--grey-900); background: var(--white); box-shadow: var(--shadow-lg); text-align: left; }
.preview-toolbar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding-bottom: var(--space-4); border-bottom: 1px solid var(--grey-200); }
.preview-title { color: var(--navy-900); font-weight: 800; }
.status-dot { display: inline-flex; align-items: center; gap: 0.45rem; color: var(--grey-700); font-size: 0.75rem; }
.status-dot span { width: 7px; height: 7px; border-radius: 50%; background: var(--green-700); }
.preview-metrics { display: grid; grid-template-columns: repeat(4, 1fr); }
.preview-metrics article { padding: var(--space-5); border-right: 1px solid var(--grey-200); }
.preview-metrics article:last-child { border-right: 0; }
.preview-metrics span, .preview-metrics small { display: block; color: var(--grey-700); font-size: 0.75rem; }
.preview-metrics strong { display: block; margin: 0.25rem 0; color: var(--navy-900); font-size: 1.5rem; }
.preview-chart { display: flex; height: 150px; align-items: flex-end; gap: 5%; padding: var(--space-5) 5% 0; border-top: 1px solid var(--grey-200); background: repeating-linear-gradient(to top, transparent 0 36px, var(--grey-100) 37px); }
.preview-chart span { flex: 1; height: var(--bar); background: var(--navy-700); border-top: 3px solid var(--gold-500); }
.problem-section { background: var(--beige-50); }
.split-copy { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 7vw, 7rem); align-items: start; }
.split-copy h2 { margin-bottom: 0; }
.prose { padding-top: 2rem; color: var(--grey-700); font-size: 1.08rem; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; padding: 0; list-style: none; counter-reset: none; }
.steps li { min-height: 230px; padding: var(--space-5); border-top: 2px solid var(--navy-900); border-right: 1px solid var(--grey-200); }
.steps li:last-child { border-right: 0; }
.steps span { display: block; margin-bottom: var(--space-7); color: var(--gold-600); font-weight: 800; }
.steps p { color: var(--grey-700); }
.modules-section { color: var(--white); background: var(--navy-900); }
.modules-section h2, .modules-section h3 { color: var(--white); }
.heading-row { display: flex; max-width: none; align-items: flex-end; justify-content: space-between; gap: var(--space-7); }
.heading-row > p { max-width: 460px; }
.heading-row > div > p:last-child { max-width: 720px; color: var(--grey-700); }
.module-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,0.18); border-left: 1px solid rgba(255,255,255,0.18); }
.module-grid article { min-height: 220px; padding: var(--space-6); border-right: 1px solid rgba(255,255,255,0.18); border-bottom: 1px solid rgba(255,255,255,0.18); }
.module-grid p { color: #bdc6cc; }
.module-code { display: block; margin-bottom: var(--space-6); color: var(--gold-300); font-size: 0.78rem; font-weight: 800; }
.audience-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: var(--space-8); align-items: center; }
.check-list { margin: 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding: 1.2rem 1rem 1.2rem 3rem; border-bottom: 1px solid var(--grey-200); font-weight: 650; }
.check-list li::before { position: absolute; left: 0.5rem; color: var(--gold-600); content: "✓"; font-weight: 900; }
.treasury-method-section { color: var(--white); background: var(--navy-900); }
.treasury-method-section h2, .treasury-method-section h3 { color: var(--white); }
.treasury-method-layout { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); gap: var(--space-8); align-items: start; }
.treasury-method-layout .section-heading p:not(.eyebrow) { color: #ccd5da; }
.treasury-method-points { border-top: 1px solid rgba(255,255,255,0.2); }
.treasury-method-points article { display: grid; grid-template-columns: 44px 1fr; column-gap: var(--space-4); padding: var(--space-5) 0; border-bottom: 1px solid rgba(255,255,255,0.2); }
.treasury-method-points span { grid-row: 1 / 3; color: var(--gold-300); font-size: 0.78rem; font-weight: 800; }
.treasury-method-points h3, .treasury-method-points p { margin: 0; }
.treasury-method-points p { margin-top: 0.35rem; color: #bdc8ce; }
.comparison-section { background: var(--beige-100); }
.comparison-layout { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: var(--space-8); align-items: start; }
.comparison-table { border-top: 2px solid var(--navy-900); }
.comparison-row { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid #d5cfc5; }
.comparison-row > * { padding: 1.1rem; }
.comparison-row > *:last-child { border-left: 1px solid #d5cfc5; color: var(--navy-900); }
.comparison-head { color: var(--grey-700); font-size: 0.75rem; font-weight: 800; text-transform: uppercase; }
.method-section { background: var(--white); }
.method-layout { display: grid; grid-template-columns: 260px 1fr; gap: var(--space-8); align-items: center; }
.method-marker { display: grid; aspect-ratio: 1; place-items: center; border: 1px solid var(--gold-500); color: var(--gold-500); background: var(--navy-900); font-family: var(--font-serif); font-size: 8rem; }
.method-layout > div:last-child { max-width: 720px; }
.method-layout > div:last-child > p:not(.eyebrow) { color: var(--grey-700); font-size: 1.12rem; }
.principles { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: var(--space-5); }
.principles span { padding: 0.5rem 0.75rem; border: 1px solid var(--grey-300); border-radius: var(--radius-sm); font-size: 0.8rem; font-weight: 750; }
.platform-section { background: var(--grey-100); }
.platform-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.platform-features article { padding: var(--space-6); border-left: 3px solid var(--gold-500); background: var(--white); }
.platform-features strong { color: var(--navy-900); font-size: 1.1rem; }
.platform-features p { margin: 0.5rem 0 0; color: var(--grey-700); }
.limits-section { color: var(--white); background: var(--grey-900); }
.limits-section h2 { color: var(--white); }
.limits-layout { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-8); }
.limits-layout ul { margin: 0; padding-left: 1.2rem; color: #dbe0e3; }
.limits-layout li { margin-bottom: var(--space-3); padding-left: 0.4rem; }
.faq-layout { display: grid; grid-template-columns: 0.7fr 1.3fr; gap: var(--space-8); }
.faq-list details { border-top: 1px solid var(--grey-300); }
.faq-list details:last-child { border-bottom: 1px solid var(--grey-300); }
.faq-list summary { position: relative; padding: 1.3rem 2.5rem 1.3rem 0; color: var(--navy-900); font-weight: 750; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { position: absolute; right: 0.5rem; content: "+"; color: var(--gold-600); font-size: 1.5rem; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { padding-right: var(--space-7); color: var(--grey-700); }
.cta-section { padding: var(--space-8) 0; color: var(--white); background: var(--gold-600); }
.cta-section .eyebrow { color: var(--navy-950); }
.cta-section h2 { max-width: 760px; margin: 0; color: var(--white); }
.cta-section p { margin: 0.6rem 0 0; }
.cta-section p a { border-bottom: 1px solid currentColor; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-7); }
.site-footer { padding: var(--space-6) 0; color: #b8c1c7; background: var(--navy-950); }
.footer-inner { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: var(--space-6); font-size: 0.78rem; }
.footer-inner p { margin: 0; }
.brand-footer { color: var(--white); }
.brand-footer img { padding: 3px; border: 1px solid var(--gold-500); border-radius: var(--radius-sm); background: var(--beige-50); }
.footer-links { display: flex; flex-wrap: wrap; gap: var(--space-4); }
.footer-links a:hover { color: var(--gold-300); }
.error-page { display: grid; min-height: 100vh; place-items: center; padding: var(--space-5); color: var(--white); background: var(--navy-950); text-align: center; }
.error-page main { width: min(100%, 680px); }
.error-page img { width: 132px; height: 132px; margin: 0 auto var(--space-5); padding: 8px; border: 1px solid var(--gold-500); border-radius: 50%; background: var(--beige-50); }
.error-page h1 { color: var(--white); font-size: clamp(2.8rem, 7vw, 5rem); }
.error-page p:not(.eyebrow) { color: #dce2e6; }
.legal-page { background: var(--beige-50); }
.legal-header { position: static; }
.legal-main { padding: var(--space-8) 0 var(--space-9); }
.legal-hero { max-width: 850px; padding-bottom: var(--space-7); border-bottom: 1px solid var(--grey-300); }
.legal-hero h1 { margin-bottom: var(--space-4); }
.legal-hero > p:not(.eyebrow) { color: var(--grey-700); font-size: 1.08rem; }
.legal-content { max-width: 850px; }
.legal-content section { padding-top: var(--space-6); }
.legal-content h2 { margin-bottom: var(--space-3); font-size: clamp(1.55rem, 3vw, 2.1rem); }
.legal-content h3 { margin-top: var(--space-5); }
.legal-content p, .legal-content li { color: var(--grey-700); }
.legal-content li + li { margin-top: 0.55rem; }
.legal-content a { color: var(--navy-800); text-decoration: underline; text-underline-offset: 0.2em; }
.legal-data { display: grid; gap: 0.5rem; padding: var(--space-5); border-left: 3px solid var(--gold-500); background: var(--white); }
.legal-data p { margin: 0; }
.legal-back { display: inline-flex; margin-top: var(--space-7); }

@media (max-width: 1020px) {
  .site-nav { gap: 1rem; }
  .preview-metrics { grid-template-columns: repeat(2, 1fr); }
  .preview-metrics article:nth-child(2) { border-right: 0; }
  .preview-metrics article:nth-child(-n+2) { border-bottom: 1px solid var(--grey-200); }
  .module-grid, .steps { grid-template-columns: repeat(2, 1fr); }
  .steps li:nth-child(2) { border-right: 0; }
}

@media (max-width: 820px) {
  .menu-toggle { display: inline-grid; }
  .site-nav { position: absolute; top: 76px; right: 1rem; left: 1rem; display: none; padding: var(--space-5); border: 1px solid var(--navy-700); background: var(--navy-950); box-shadow: var(--shadow-lg); }
  .site-nav.open { display: grid; }
  .site-nav .button { margin-top: 0.5rem; }
  .hero { padding-top: var(--space-7); }
  .hero h1 { font-size: 3.3rem; }
  .split-copy, .audience-layout, .comparison-layout, .method-layout, .limits-layout, .faq-layout, .treasury-method-layout { grid-template-columns: 1fr; gap: var(--space-6); }
  .method-marker { width: 180px; }
  .heading-row { display: block; }
  .heading-row .button { margin-top: var(--space-4); }
  .platform-features { grid-template-columns: 1fr; }
  .cta-inner { align-items: flex-start; flex-direction: column; }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .hero-brand-lockup span { width: 104px; height: 104px; }
  .hero-brand-lockup img { width: 88px; height: 88px; }
  .hero h1 { font-size: 2.65rem; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .preview-metrics { grid-template-columns: 1fr; }
  .preview-metrics article { border-right: 0; border-bottom: 1px solid var(--grey-200); }
  .preview-metrics article:last-child { border-bottom: 0; }
  .preview-chart { height: 110px; padding-inline: 2%; }
  .steps, .module-grid { grid-template-columns: 1fr; }
  .steps li, .module-grid article { min-height: auto; border-right: 0; }
  .comparison-row > * { padding: 0.85rem 0.5rem; font-size: 0.78rem; }
}