.concept-page{background:var(--background);min-height:100vh}.concept-shell{width:min(1100px,100% - 32px);margin:0 auto;padding:72px 0 120px}.concept-header{border-bottom:1px solid var(--border);max-width:820px;padding-bottom:80px}.concept-breadcrumb{color:var(--muted);text-transform:uppercase;letter-spacing:.06em;align-items:center;gap:10px;margin-bottom:56px;font-family:monospace;font-size:12px;display:flex}.concept-breadcrumb a{transition:color .15s}.concept-breadcrumb a:hover,.concept-breadcrumb a:focus-visible{color:var(--foreground)}.concept-eyebrow{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin:0 0 14px;font-family:monospace;font-size:11px;font-weight:700}.concept-header h1{letter-spacing:-.065em;margin:0;font-size:clamp(52px,8vw,88px);line-height:.95}.concept-lead{max-width:700px;color:var(--muted);margin:30px 0 0;font-size:19px;line-height:1.65}.concept-section{max-width:900px;padding-top:72px}.concept-section-heading{margin-bottom:28px}.concept-section-heading h2{letter-spacing:-.045em;margin:0;font-size:clamp(30px,5vw,42px);line-height:1}.concept-content-block{max-width:760px}.concept-content-block p{color:var(--muted);margin:0;font-size:17px;line-height:1.75}.concept-list{border-top:1px solid var(--border);margin:0;padding:0;list-style:none}.concept-list li{border-bottom:1px solid var(--border);grid-template-columns:48px minmax(0,1fr);gap:24px;padding:22px 0;display:grid}.concept-list li span{color:var(--muted);font-family:monospace;font-size:12px}.concept-list li strong{font-size:17px;font-weight:600}.concept-placeholder{border-top:1px solid var(--border);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:24px;padding:24px 0;display:flex}.concept-placeholder p{color:var(--muted);margin:0;font-size:15px;line-height:1.6}.concept-placeholder a{flex-shrink:0;font-size:14px;font-weight:600;transition:transform .15s}.concept-placeholder a:hover,.concept-placeholder a:focus-visible{transform:translate(4px)}.concept-connected{flex-wrap:wrap;gap:10px;display:flex}.concept-connected span{border:1px solid var(--border);background:var(--surface);padding:9px 12px;font-family:monospace;font-size:12px}@media (max-width:640px){.concept-shell{width:min(100% - 24px,1100px);padding:48px 0 80px}.concept-header{padding-bottom:64px}.concept-breadcrumb{margin-bottom:42px}.concept-header h1{font-size:clamp(46px,14vw,68px)}.concept-lead{margin-top:24px;font-size:17px}.concept-section{padding-top:56px}.concept-list li{grid-template-columns:34px minmax(0,1fr);gap:14px;padding:20px 0}.concept-placeholder{flex-direction:column;align-items:flex-start;gap:16px}}