@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Manrope:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  --ink: #07162f;
  --navy: #08275f;
  --blue: #0c4fd6;
  --blue-bright: #1d66f5;
  --amber: #e9a11b;
  --paper: #f7f8fa;
  --line: #d9e0ea;
  --muted: #647087;
  --white: #ffffff;
  --display: 'Space Grotesk', Arial, sans-serif;
  --body: 'Manrope', Arial, sans-serif;
  --mono: 'DM Mono', Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--body); }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }

.site-header {
  align-items: center; background: rgba(247,248,250,.92); border-bottom: 1px solid var(--line); display: grid;
  grid-template-columns: 1fr auto 1fr; height: 76px; padding: 0 4.5vw; position: sticky; top: 0; z-index: 20; backdrop-filter: blur(14px);
}
.brand { align-items: center; display: inline-flex; font-family: var(--display); font-size: 21px; font-weight: 700; gap: 11px; letter-spacing: -.03em; width: fit-content; }
.brand-mark { align-items: center; background: var(--blue); color: white; display: inline-flex; font-family: var(--mono); font-size: 12px; height: 34px; justify-content: center; letter-spacing: -.05em; width: 34px; }
nav { display: flex; gap: 38px; }
nav a { color: #344157; font-size: 13px; font-weight: 600; }
nav a:hover { color: var(--blue); }
.header-cta { justify-self: end; color: var(--blue); font-size: 13px; font-weight: 700; }
.header-cta span { margin-left: 6px; }

.hero { min-height: 700px; overflow: hidden; padding: 94px 4.5vw 82px; position: relative; display: grid; grid-template-columns: 1.02fr .98fr; gap: 6vw; align-items: center; }
.hero-grid { background-image: linear-gradient(rgba(12,79,214,.065) 1px, transparent 1px), linear-gradient(90deg, rgba(12,79,214,.065) 1px, transparent 1px); background-size: 42px 42px; inset: 0 50% 0 0; mask-image: linear-gradient(to right bottom, black, transparent 72%); position: absolute; }
.hero-copy { position: relative; z-index: 1; }
.kicker, .eyebrow, .group-eyebrow { color: var(--blue); font-family: var(--mono); font-size: 11px; font-weight: 500; letter-spacing: .12em; margin: 0 0 22px; text-transform: uppercase; }
.kicker { align-items: center; display: flex; gap: 11px; }
.kicker span { background: var(--amber); height: 2px; width: 30px; }
h1, h2, h3 { font-family: var(--display); letter-spacing: -.055em; margin: 0; }
h1 { font-size: clamp(64px, 7.2vw, 112px); line-height: .88; }
h1 em, .contact h2 em { color: var(--blue); font-style: normal; }
.hero-lede { color: #3d4a61; font-size: 18px; line-height: 1.72; margin: 34px 0 0; max-width: 650px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 36px; }
.button { align-items: center; display: inline-flex; font-size: 13px; font-weight: 700; justify-content: space-between; min-width: 215px; padding: 17px 19px; }
.button-primary { background: var(--blue); color: white; }
.button-primary:hover { background: var(--navy); }
.button-ghost { border: 1px solid #aab5c5; }
.button-ghost:hover { border-color: var(--blue); color: var(--blue); }
.hero-facts { border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 55px; padding-top: 22px; }
.hero-facts div { display: flex; flex-direction: column; gap: 4px; }
.hero-facts strong { font-family: var(--display); font-size: 26px; letter-spacing: -.04em; }
.hero-facts span { color: var(--muted); font-size: 11px; }
.hero-visual { box-shadow: 0 30px 70px rgba(7,22,47,.14); position: relative; transform: rotate(1deg); }
.hero-visual:before { border: 1px solid rgba(12,79,214,.28); content: ''; inset: -14px 14px 14px -14px; position: absolute; z-index: -1; }
.hero-visual img { display: block; height: auto; width: 100%; }
.visual-label { background: var(--ink); bottom: -28px; color: white; display: flex; flex-direction: column; gap: 4px; left: 26px; padding: 17px 20px; position: absolute; }
.visual-label span { color: #9fb8e7; font-family: var(--mono); font-size: 9px; letter-spacing: .1em; text-transform: uppercase; }
.visual-label b { font-size: 12px; }

.entity-strip { align-items: center; background: var(--ink); color: #d7e2f4; display: flex; flex-wrap: wrap; gap: 28px 55px; padding: 22px 4.5vw; }
.entity-strip p { border-left: 1px solid #31415d; font-family: var(--mono); font-size: 10px; letter-spacing: .035em; margin: 0; padding-left: 22px; }
.entity-strip b { color: white; }
.status-dot { background: #49d78b; border-radius: 50%; box-shadow: 0 0 0 5px rgba(73,215,139,.12); height: 8px; width: 8px; }

.section { padding: 125px 7vw; }
.intro { background: white; display: grid; gap: 5vw; grid-template-columns: 60px 1.2fr .8fr; }
.section-number { color: #a4afc0; font-family: var(--mono); font-size: 12px; padding-top: 7px; }
h2 { font-size: clamp(45px, 5vw, 76px); line-height: 1; }
.intro-copy { color: #435069; font-size: 16px; line-height: 1.75; padding-top: 42px; }
.intro-copy p { margin: 0 0 20px; }
.intro-copy strong { color: var(--ink); }
.proof-note { border-left: 3px solid var(--amber); color: #68758a; font-size: 12px; padding: 4px 0 4px 16px; }

.product-section { background: #eff2f6; }
.section-head { align-items: end; display: grid; gap: 5vw; grid-template-columns: 1.4fr .6fr; margin-bottom: 72px; }
.section-head > p { color: var(--muted); font-size: 13px; line-height: 1.7; margin: 0 0 5px; max-width: 430px; }
.product-groups { display: grid; gap: 22px; }
.article-callout { align-items: center; background: var(--ink); color: white; display: grid; gap: 14px 28px; grid-template-columns: auto 1fr auto; margin: -32px 0 30px; padding: 24px 28px; }
.article-callout:hover { background: var(--navy); }
.article-callout-tag { color: #9fbcf1; font-family: var(--mono); font-size: 9px; letter-spacing: .08em; }
.article-callout strong { font-family: var(--display); font-size: 17px; }
.article-callout-copy { color: #c7d4e8; font-size: 11px; }
.product-group { background: white; border: 1px solid var(--line); display: grid; grid-template-columns: .78fr 1.22fr; }
.group-intro { border-right: 1px solid var(--line); padding: 42px; }
.group-eyebrow { margin-bottom: 55px; }
.group-intro h3 { font-size: 34px; line-height: 1.05; }
.group-intro > p:last-child { color: var(--muted); font-size: 13px; line-height: 1.65; margin: 20px 0 0; max-width: 360px; }
.product-list { min-width: 0; }
.product-row { align-items: center; border-bottom: 1px solid var(--line); display: grid; gap: 18px; grid-template-columns: 44px 1fr auto 24px; padding: 20px 26px; transition: background .2s, padding .2s; }
.product-row:last-child { border-bottom: 0; }
.product-row:hover { background: #f2f6ff; padding-left: 32px; }
.product-index { color: #9aa6b9; font-family: var(--mono); font-size: 10px; }
.product-name { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.product-name b { font-size: 13px; }
.product-name small { color: var(--muted); font-size: 10px; }
.product-source { color: var(--blue); font-family: var(--mono); font-size: 9px; letter-spacing: .04em; text-transform: uppercase; }
.product-arrow { color: var(--blue); }

.buyer-section { background: var(--blue); color: white; display: grid; gap: 5vw; grid-template-columns: 60px .8fr 1.2fr; }
.light, .light-text { color: #a9c5fb; }
.buyer-section h2 { font-size: clamp(44px, 4.5vw, 70px); }
.buyer-grid { display: grid; grid-template-columns: repeat(2, 1fr); }
.buyer-card { border-left: 1px solid rgba(255,255,255,.25); border-top: 1px solid rgba(255,255,255,.25); min-height: 140px; padding: 22px; }
.buyer-card span { color: #9cbcf5; font-family: var(--mono); font-size: 10px; }
.buyer-card p { font-family: var(--display); font-size: 17px; font-weight: 600; line-height: 1.25; margin: 36px 0 0; max-width: 200px; }

.process { background: white; }
.process-grid { display: grid; grid-template-columns: repeat(4,1fr); list-style: none; margin: 0; padding: 0; }
.process-grid li { border-left: 1px solid var(--line); min-height: 250px; padding: 25px; }
.process-grid li:first-child { border-left-color: var(--blue); }
.process-grid span { color: var(--blue); font-family: var(--mono); font-size: 11px; }
.process-grid b { display: block; font-family: var(--display); font-size: 22px; margin-top: 80px; }
.process-grid p { color: var(--muted); font-size: 12px; line-height: 1.55; margin: 10px 0 0; }

.faq { display: grid; gap: 8vw; grid-template-columns: .8fr 1.2fr; }
.faq-title { position: sticky; top: 120px; align-self: start; }
.faq-list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); padding: 0; }
summary { cursor: pointer; display: flex; font-family: var(--display); font-size: 19px; font-weight: 600; justify-content: space-between; list-style: none; padding: 27px 0; }
summary::-webkit-details-marker { display: none; }
summary span { color: var(--blue); font-family: var(--mono); }
details[open] summary span { transform: rotate(45deg); }
details p { color: var(--muted); font-size: 13px; line-height: 1.75; margin: -4px 0 28px; max-width: 680px; padding-right: 45px; }

.contact { background: #edf3ff; overflow: hidden; position: relative; }
.contact:after { border: 90px solid rgba(12,79,214,.055); border-radius: 50%; content: ''; height: 410px; position: absolute; right: -140px; top: -140px; width: 410px; }
.contact h2 { font-size: clamp(56px, 7vw, 104px); max-width: 980px; position: relative; z-index: 1; }
.contact-grid { border-bottom: 1px solid #bdcbe3; border-top: 1px solid #bdcbe3; display: grid; grid-template-columns: repeat(3,1fr); margin-top: 60px; }
.contact-grid div { border-right: 1px solid #bdcbe3; display: flex; flex-direction: column; gap: 10px; padding: 24px 28px; }
.contact-grid div:last-child { border-right: 0; }
.contact-grid span { color: var(--muted); font-family: var(--mono); font-size: 9px; letter-spacing: .06em; text-transform: uppercase; }
.contact-grid b, .contact-grid a { font-size: 14px; }
.contact-grid a:hover { color: var(--blue); }
.contact-button { background: var(--blue); color: white; display: flex; font-size: 14px; font-weight: 700; justify-content: space-between; margin-top: 28px; max-width: 390px; padding: 20px 22px; }
.contact-button:hover { background: var(--navy); }

footer { align-items: start; background: var(--ink); color: #b2bed0; display: grid; gap: 5vw; grid-template-columns: .6fr .7fr 1fr; padding: 55px 4.5vw; }
.footer-brand { color: white; }
footer p { font-size: 11px; line-height: 1.7; margin: 0; }
.footer-note { color: #7e8aa0; }

.article-page { background: white; }
.article-hero { background: var(--paper); padding: 110px 12vw 80px; }
.article-hero h1 { font-size: clamp(58px, 7vw, 104px); max-width: 1200px; }
.article-deck { color: #435069; font-size: 19px; line-height: 1.7; margin: 38px 0; max-width: 820px; }
.article-meta { border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 24px 55px; padding-top: 20px; }
.article-meta span { color: var(--muted); font-family: var(--mono); font-size: 10px; letter-spacing: .04em; text-transform: uppercase; }
.article-body { display: grid; gap: 7vw; grid-template-columns: 260px minmax(0, 820px); justify-content: center; padding: 105px 7vw; }
.article-aside { align-self: start; border-top: 3px solid var(--blue); display: flex; flex-direction: column; gap: 11px; padding-top: 22px; position: sticky; top: 110px; }
.article-aside b { font-family: var(--display); font-size: 17px; line-height: 1.35; }
.article-aside span, .article-aside a { color: var(--muted); font-size: 11px; }
.article-aside a { color: var(--blue); font-weight: 700; margin-top: 9px; }
.article-content > section { border-top: 1px solid var(--line); margin-top: 78px; padding-top: 55px; }
.article-lead { color: #24334c; font-family: var(--display); font-size: 25px; font-weight: 500; letter-spacing: -.025em; line-height: 1.55; margin: 0; }
.article-content h2 { font-size: clamp(38px, 4.2vw, 60px); margin-bottom: 32px; }
.article-content > section > p:not(.eyebrow):not(.article-note) { color: #47556c; font-size: 15px; line-height: 1.8; }
.check-grid { display: grid; grid-template-columns: 1fr 1fr; }
.check-grid > div { border-left: 1px solid var(--line); border-top: 1px solid var(--line); min-height: 230px; padding: 24px; }
.check-grid span { color: var(--blue); font-family: var(--mono); font-size: 10px; }
.check-grid b { display: block; font-family: var(--display); font-size: 19px; margin-top: 48px; }
.check-grid p { color: var(--muted); font-size: 12px; line-height: 1.7; }
.evidence-links { border-top: 1px solid var(--line); }
.evidence-links a { align-items: center; border-bottom: 1px solid var(--line); display: grid; gap: 18px; grid-template-columns: 150px 1fr auto; padding: 22px 5px; }
.evidence-links a:hover { background: #f2f6ff; padding-left: 12px; }
.evidence-links span { color: var(--blue); font-family: var(--mono); font-size: 9px; letter-spacing: .04em; text-transform: uppercase; }
.evidence-links b { font-size: 13px; }
.evidence-links em { color: var(--blue); font-size: 10px; font-style: normal; }
.article-note { border-left: 3px solid var(--amber); color: var(--muted); font-size: 11px; line-height: 1.7; margin-top: 28px; padding: 6px 0 6px 17px; }
.compliance-list { list-style: none; margin: 32px 0; padding: 0; }
.compliance-list li { border-bottom: 1px solid var(--line); display: grid; gap: 24px; grid-template-columns: 180px 1fr; padding: 19px 0; }
.compliance-list b { font-family: var(--display); font-size: 15px; }
.compliance-list span { color: var(--muted); font-size: 12px; line-height: 1.7; }
.official-sources { background: var(--ink); display: flex; flex-direction: column; gap: 0; margin-top: 35px; padding: 28px; }
.official-sources .eyebrow { color: #94b6f6; }
.official-sources a { border-top: 1px solid #31415d; color: white; font-size: 12px; padding: 15px 0; }
.official-sources a:hover { color: #94b6f6; }
.article-cta { background: #edf3ff; padding: 90px 12vw; }
.article-cta h2 { font-size: clamp(48px, 6vw, 82px); }

@media (max-width: 980px) {
  .site-header { grid-template-columns: 1fr auto; } nav { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 70px; } .hero-visual { margin: 15px 0 25px; }
  .intro, .buyer-section { grid-template-columns: 40px 1fr; } .intro-copy, .buyer-grid { grid-column: 2; }
  .product-group { grid-template-columns: 1fr; } .group-intro { border-bottom: 1px solid var(--line); border-right: 0; } .group-eyebrow { margin-bottom: 24px; }
  .process-grid { grid-template-columns: repeat(2,1fr); }
  .faq { grid-template-columns: 1fr; } .faq-title { position: static; }
  footer { grid-template-columns: 1fr 1fr; } .footer-note { grid-column: 1 / -1; }
  .article-callout { grid-template-columns: 1fr; }
  .article-body { grid-template-columns: 1fr; } .article-aside { position: static; }
}

@media (max-width: 640px) {
  .site-header { height: 68px; padding: 0 20px; } .header-cta { font-size: 0; } .header-cta:after { content: 'Store ↗'; font-size: 12px; }
  .hero { padding: 62px 20px 60px; } h1 { font-size: 57px; } .hero-lede { font-size: 15px; } .hero-actions { flex-direction: column; } .button { width: 100%; }
  .hero-facts { gap: 10px; } .hero-facts strong { font-size: 22px; } .hero-facts span { font-size: 9px; }
  .entity-strip { align-items: start; flex-direction: column; gap: 12px; padding: 24px 20px; } .entity-strip p { border-left: 0; padding-left: 0; }
  .section { padding: 82px 20px; } .intro, .buyer-section { display: block; } .section-number { margin-bottom: 30px; } h2 { font-size: 43px; } .intro-copy { padding-top: 30px; }
  .section-head { display: block; } .section-head > p { margin-top: 24px; }
  .group-intro { padding: 30px 22px; } .group-intro h3 { font-size: 30px; }
  .product-row { grid-template-columns: 28px 1fr 20px; padding: 18px 16px; } .product-row:hover { padding-left: 18px; } .product-source { display: none; }
  .buyer-grid { margin-top: 45px; } .buyer-card { min-height: 130px; padding: 16px; } .buyer-card p { font-size: 14px; margin-top: 32px; }
  .process-grid { grid-template-columns: 1fr 1fr; } .process-grid li { min-height: 200px; padding: 18px; } .process-grid b { font-size: 17px; margin-top: 52px; }
  .contact h2 { font-size: 52px; } .contact-grid { grid-template-columns: 1fr; } .contact-grid div { border-bottom: 1px solid #bdcbe3; border-right: 0; padding-left: 0; } .contact-grid div:last-child { border-bottom: 0; }
  footer { grid-template-columns: 1fr; }
  .article-hero { padding: 75px 20px 60px; } .article-hero h1 { font-size: 50px; } .article-deck { font-size: 15px; }
  .article-body { padding: 70px 20px; } .article-lead { font-size: 21px; }
  .check-grid { grid-template-columns: 1fr; }
  .evidence-links a { grid-template-columns: 1fr; gap: 7px; }
  .compliance-list li { grid-template-columns: 1fr; gap: 8px; }
  .article-cta { padding: 72px 20px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }