/* Staging proposal: OTF's existing Archivo, palette and square controls. */
header[data-sticky-header] .navlinks{gap:clamp(10px,2vw,24px)}
header .nav-secondary{color:var(--paper);font-size:12.5px;font-weight:700;padding:12px 0}
header .nav-purchase{display:inline-flex;align-items:center;min-height:44px;white-space:nowrap}
header .nav-purchase[aria-current="page"]{text-decoration:underline;text-underline-offset:4px}
@media(max-width:759px){header .nav-library,header .nav-secondary{font-size:12px}header .nav-secondary{padding:12px 0}header[data-sticky-header] .navlinks{gap:12px}header .nav-purchase{padding:10px 12px}}
@media(max-width:359px){header .nav-secondary{display:none}}
.buy-hero{background:var(--accent);padding:clamp(36px,6vw,76px) 0 clamp(48px,7vw,88px);border-bottom:2px solid var(--ink)}
.buy-breadcrumb{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;margin-bottom:clamp(32px,5vw,60px)}
.buy-breadcrumb:hover{text-decoration:underline;text-underline-offset:4px}
.buy-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);align-items:start;gap:clamp(32px,5vw,64px)}
.buy-hero .kicker{background:var(--ink);color:var(--accent);margin-bottom:24px}
.buy-hero h1{font-size:clamp(50px,6.4vw,84px);line-height:1;letter-spacing:-.045em;max-width:10ch;overflow-wrap:normal}
.buy-intro{max-width:36ch;font-size:clamp(18px,1.7vw,21px);line-height:1.55;margin-top:26px}
.buy-ad-label{font-family:var(--mono);font-size:11px;letter-spacing:.08em;margin-top:24px}
.buy-platform{background:var(--paper);border:2px solid var(--ink);padding:clamp(24px,3vw,36px);margin-top:0}
.buy-platform-label{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase}
.buy-logo{width:210px;height:auto;max-width:82%;filter:brightness(0);margin:32px 0 38px}
.buy-platform h2{font-size:28px;letter-spacing:-.025em;line-height:1.15;font-weight:900}
.buy-platform-description{font-size:15px;margin-top:10px;max-width:36ch}
.buy-action{display:flex;align-items:center;justify-content:space-between;gap:14px;border:2px solid var(--ink);min-height:56px;margin-top:28px;width:100%;font-size:16px;padding:14px 18px}
.buy-action:hover{background:var(--accent)}
.buy-action span{font-size:22px;line-height:1}
.buy-destination{font-size:12px;margin-top:10px;color:var(--ink-70)}
.buy-risk{font-size:13px;line-height:1.65;margin-top:24px;padding-top:22px;border-top:1px solid var(--ink-12)}
.buy-guide{padding:clamp(56px,8vw,100px) 0}
.buy-guide-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.35fr);gap:clamp(36px,6vw,90px)}
.buy-guide h2,.buy-documents h2{font-size:clamp(34px,4vw,48px);line-height:1.06;letter-spacing:-.035em;max-width:14ch}
.buy-guide-lede{font-size:17px;line-height:1.6;max-width:31ch;margin-top:22px}
.buy-steps{list-style:none;counter-reset:buy-step}
.buy-steps li{counter-increment:buy-step;display:grid;grid-template-columns:40px 1fr;gap:18px;padding:26px 0;border-top:1px solid var(--ink);align-items:start}
.buy-steps li:first-child{padding-top:0;border-top:0}
.buy-steps li::before{content:counter(buy-step,decimal-leading-zero);font-family:var(--mono);font-weight:700;font-size:15px;padding-top:3px}
.buy-steps h3{font-size:22px;letter-spacing:-.025em;line-height:1.25}
.buy-steps p{font-size:16px;line-height:1.65;margin-top:10px;max-width:48ch}
.buy-text-link{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;font-weight:700}
.buy-text-link:hover{text-decoration-thickness:2px}
.buy-documents{background:var(--warm);padding:clamp(40px,6vw,68px) 0}
.buy-docs-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,6vw,90px)}
.buy-documents p{font-size:17px;max-width:49ch;line-height:1.65}
.buy-documents .buy-text-link{display:inline-block;margin-top:22px}
.buy-documents .buy-commentary{display:block;font-size:14px;margin-top:18px}
.buy-page footer{margin-top:0}
@media(max-width:850px){.buy-grid{grid-template-columns:1fr 1fr;gap:26px}.buy-hero h1{font-size:58px}.buy-platform{padding:24px}.buy-action{font-size:14px;padding:14px 12px}}
@media(max-width:650px){.buy-grid,.buy-guide-grid,.buy-docs-grid{grid-template-columns:1fr}.buy-grid{gap:32px}.buy-hero h1{font-size:clamp(48px,12vw,70px);max-width:11ch}.buy-intro{max-width:34ch;margin-top:22px}.buy-breadcrumb{margin-bottom:30px}.buy-logo{width:180px;margin:26px 0 30px}.buy-action{font-size:16px}.buy-hero .kicker{margin-bottom:20px}.buy-ad-label{margin-top:18px}.buy-guide-grid{gap:36px}.buy-guide h2,.buy-documents h2{max-width:16ch}.buy-guide-lede{max-width:38ch}.buy-docs-grid{gap:24px}.buy-steps li{gap:12px;grid-template-columns:32px 1fr}}