/* Source-backed section entry points and conversion actions. */
:root{--page-nav-height:80px}
.lp-nav{height:var(--page-nav-height);background:var(--paper);color:var(--ink);border-bottom:1px solid var(--line);backdrop-filter:none}
.lp-nav .nav-top{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.lp-nav .lockup,.lp-nav .lockup .hsw svg{color:var(--green-900)}
.lp-nav .lockup .hsw{font-size:17px}
.lp-nav .nav-cta{margin-left:auto;gap:20px}
.lp-nav .lp-signin-btn,.lp-nav:not(.solid):not(.open) .lp-signin-btn{background:var(--green-900);border-color:var(--green-900);color:#fff;min-height:44px}
.lp-nav .lp-links{position:static;display:flex;flex-direction:row;justify-content:space-between;align-items:stretch;gap:clamp(12px,1.6vw,24px);height:52px;padding-top:0;padding-bottom:0;margin:0 auto;max-height:none;overflow:visible;background:none;border:0}
.lp-nav .lp-links a{padding:0;min-height:52px;display:flex;align-items:center;font-size:15px;line-height:1.25;font-weight:500;white-space:nowrap;color:var(--muted);opacity:1;text-decoration:none;border-bottom:2px solid transparent}
.lp-nav .lp-links a:hover,.lp-nav .lp-links a.on{color:var(--green-900);border-bottom-color:currentColor}
.lp-nav .lp-links .nav-demo{display:none}
.lp-nav .lp-menu-btn{display:none}
.lp-nav :where(a,button):focus-visible{outline:2px solid var(--green-700);outline-offset:4px}
section[id],footer[id],#why,#bridge,#math,[id]{scroll-margin-top:calc(var(--page-nav-height) + 24px)}

/* The same subject and heading scale across the retained sections. */
.section-label,.family-message .section-label{font-size:15px;font-weight:500;line-height:1.4;letter-spacing:0;margin:0 0 18px;color:var(--green-700)}
:is(.opportunity-heading,.risk-overview,.signals-intro,.family-message,.method-intro,.paper-copy) h2,#leak-title{font-size:clamp(34px,3.6vw,52px);font-weight:400;line-height:1.13;letter-spacing:-.03em;margin:0;text-wrap:balance}
.opportunity-heading h2{max-width:22ch}
.signals-intro h2{max-width:20ch}
.family-message .section-label{color:#c4d8cc}
.family-message h2{max-width:22ch}
/* Four chart steps keep the explanation legible and directly controllable. */
.opp-stage{margin-top:44px;align-items:center}
.opp-story .opp-note{display:block}
.opp-story.bucket-running .bucket-captions{min-height:300px}
.opp-story .bucket-captions{gap:28px}
.opportunity-controls{display:flex;align-items:flex-start;gap:18px;margin-top:28px;flex-wrap:wrap}
.opportunity-controls[hidden]{display:none}
.opportunity-steps{display:flex;flex-wrap:wrap;gap:0 18px}
.opportunity-steps button,.opportunity-toggle{min-height:44px;padding:8px 0;font:500 14px/1.3 Satoshi,sans-serif;border:0;border-bottom:1px solid transparent;background:none;color:var(--muted);cursor:pointer}
.opportunity-steps button[aria-pressed=true]{color:var(--green-900);border-bottom-color:var(--green-900)}
.opportunity-steps button:hover,.opportunity-toggle:hover{color:var(--green-900)}
.opportunity-toggle{color:var(--green-800);text-decoration:underline;text-underline-offset:4px}
.opportunity-controls button:focus-visible{outline:2px solid var(--green-700);outline-offset:4px}
@media(max-width:1000px){
:root{--page-nav-height:76px}
.lp-nav .nav-top{height:76px}.lp-nav .nav-cta{gap:16px}
.lp-nav .lp-menu-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:auto;height:44px;padding:0 4px;border-radius:0;font:500 15px Satoshi,sans-serif}
.lp-menu-btn b{font-weight:500}.lp-menu-btn .menu-icon{display:grid;gap:5px;width:18px;height:auto;background:none;transform:none!important}
.menu-icon i{display:block;width:18px;height:1px;background:currentColor;transition:transform .2s}
.lp-nav.open .menu-icon i:first-child{transform:translateY(3px) rotate(45deg)}.lp-nav.open .menu-icon i:last-child{transform:translateY(-3px) rotate(-45deg)}
.lp-nav .lp-links{position:absolute;top:76px;left:0;right:0;width:100%;display:none;height:auto;max-height:calc(100svh - 76px);overflow:auto;flex-direction:column;gap:0;background:var(--paper);padding:12px 32px 24px;border-bottom:1px solid var(--line)}
.lp-nav.open .lp-links{display:flex}.lp-nav .lp-links a{min-height:50px;font-size:18px;border-bottom:1px solid var(--line);padding:10px 0}.lp-nav .lp-links a.on{font-weight:700}.lp-nav .lp-links .nav-demo{display:flex}
.opp-stage{grid-template-columns:1fr}.opp-story .bucket-figure{order:0;max-width:none}.opp-story .bucket-story-copy{order:1}.opp-story.bucket-running .bucket-captions{min-height:170px}.opp-story .bucket-captions{grid-template-columns:1fr 1fr}.opportunity-controls{margin-top:20px}
}
@media(max-width:650px){
.lp-nav .nav-top{gap:12px}.lp-nav .lockup .hsw{font-size:14px;gap:6px}.lp-nav .lockup .hsw svg{width:24px;height:24px}.lp-nav .nav-cta{gap:12px}.lp-nav .lp-signin-btn{padding:0 12px;font-size:13px}.lp-nav .lp-menu-btn{font-size:13px}.lp-nav .lp-links{padding-inline:24px}
.opportunity-heading h2{max-width:22ch}.opp-stage{margin-top:32px;row-gap:24px}.opp-story.bucket-running .bucket-captions{min-height:240px}.opp-story .bucket-captions{grid-template-columns:1fr}.opp-story .story-beat h3{font-size:28px}.section-label,.family-message .section-label{font-size:14px;margin-bottom:16px}
}
@media(prefers-reduced-motion:reduce){.menu-icon i{transition:none}.opportunity-controls{display:none}.opp-story .bucket-captions{display:grid;position:static}.opp-story .story-beat{position:static;opacity:1;visibility:visible;transform:none}}
/* Scene changes keep their words present as the chart draws. */
.opp-story.bucket-running .story-beat{transition:opacity .3s ease,transform .3s ease}
.opp-story.bucket-running .story-beat.is-current{transition:opacity .3s ease,transform .3s ease}
@media(prefers-reduced-motion:reduce){.opp-story .story-beat{transition:none!important;opacity:1!important;visibility:visible!important;transform:none!important}}

@media(max-width:650px){.opp-story:not(.chart-enhanced) .op-val{font-size:28px}.opp-story:not(.chart-enhanced) .op-sub,.opp-story:not(.chart-enhanced) .op-tick{font-size:22px}.opp-story:not(.chart-enhanced) .op-gap{font-size:34px}}
/* Keep the official lockup legible without increasing the header's height. */
@media(min-width:1001px){.lp-nav .lockup .hsw{font-size:19px;gap:10px}.lp-nav .lockup .hsw svg{width:32px;height:32px}}
@media(max-width:650px){.opportunity-steps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 24px;width:100%}.opportunity-steps button{text-align:left;white-space:nowrap}}
.signals-intro>.section-label,.method-intro>.section-label,.paper-copy>.section-label{font-size:15px;font-weight:500;line-height:1.4;margin:0 0 18px;letter-spacing:0;color:var(--green-700)}
@media(max-width:650px){.signals-intro>.section-label,.method-intro>.section-label,.paper-copy>.section-label{font-size:14px;margin-bottom:16px}}

/* The navigation underline acknowledges a location without moving the layout. */
@media(min-width:1001px){.lp-nav .lp-links a{position:relative;border-bottom:0;transition:color .18s ease}.lp-nav .lp-links a:after{content:'';position:absolute;left:0;right:0;bottom:10px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease)}.lp-nav .lp-links a.on:after,.lp-nav .lp-links a:hover:after{transform:scaleX(1)}}
@media(max-width:1000px){.lp-nav.open .lp-links{animation:contents-in .24s var(--ease)}.lp-nav .lp-links{padding-inline:var(--page-gutter)}}
@keyframes contents-in{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){.lp-nav.open .lp-links{animation:none}.lp-nav .lp-links a:after{transition:none}}

/* Scroll changes the material, never the header's dimensions. */
.lp-nav{background:var(--paper);color:var(--ink);border-bottom-color:var(--line);backdrop-filter:none;-webkit-backdrop-filter:none;transition:background-color .24s ease,border-color .24s ease,color .18s ease}
.lp-nav :is(.lockup,.hsw svg,.lp-menu-btn,.nav-paper,.lp-signin-btn){transition:background-color .24s ease,border-color .24s ease,color .18s ease}
/* Conversion actions remain distinct from the story entry points. */
.lp-nav .nav-cta{gap:12px}
.lp-nav .nav-paper{display:inline-flex;min-height:44px;padding:0 16px;border:1px solid var(--line);background:transparent;color:var(--green-900);font-size:14px}
.lp-nav .nav-paper:hover{background:var(--green-075);border-color:var(--green-700)}
@media(max-width:1000px){
 :root{--page-nav-height:128px}
 .lp-nav .nav-top{height:128px;flex-wrap:wrap;gap:8px;padding-top:12px;padding-bottom:12px;align-content:space-between}
 .lp-nav .nav-cta{width:100%;margin:0;display:flex;gap:12px}
 .lp-nav .nav-cta .btn{display:inline-flex;flex:1;justify-content:center;min-height:44px}
 .lp-nav .lp-menu-btn{position:absolute;right:var(--page-gutter);top:8px}
 .lp-nav .lp-links{top:128px;max-height:calc(100svh - 128px)}
}

/* The forest state keeps the logo, directory and both conversion actions legible. */
.lp-nav:is(.solid,.open){background:var(--green-950);color:var(--paper);border-bottom-color:#355749;backdrop-filter:none;-webkit-backdrop-filter:none}
.lp-nav:is(.solid,.open) :is(.lockup,.lockup .hsw svg,.lp-menu-btn){color:var(--paper)}
.lp-nav:is(.solid,.open) .lp-links a{color:#c9dbd0}
.lp-nav:is(.solid,.open) .lp-links a:is(.on,:hover){color:#fff}
.lp-nav:is(.solid,.open) .lp-signin-btn{background:var(--paper);border-color:var(--paper);color:var(--green-950)}
.lp-nav:is(.solid,.open) .lp-signin-btn:hover{background:#dce9e1;border-color:#dce9e1}
.lp-nav:is(.solid,.open) .nav-paper{color:var(--paper);border-color:#8ea99b;background:transparent}
.lp-nav:is(.solid,.open) .nav-paper:hover{background:#1e4335;border-color:#c9dbd0}
.lp-nav:is(.solid,.open) :where(a,button):focus-visible{outline-color:#e3eee7}
@media(max-width:1000px){
 .lp-nav:is(.solid,.open) .lp-links{background:var(--green-950);border-color:#355749}
 .lp-nav:is(.solid,.open) .lp-links a{border-bottom-color:#355749}
}
@media(prefers-reduced-motion:reduce){.lp-nav,.lp-nav :is(.lockup,.hsw svg,.lp-menu-btn,.nav-paper,.lp-signin-btn){transition:none}}

/* Product identity leads; Healthspan is the supporting attribution. */
.product-lockup{display:flex;flex-direction:column;align-items:flex-start;gap:3px;line-height:1.3;text-decoration:none;min-width:0}
.product-name{font-size:20px;font-weight:500;white-space:nowrap}
.product-name sup{font-size:.6em;vertical-align:super;margin-left:1px}
.product-credit{font-size:13px;font-weight:400}
@media(max-width:1000px){
 :root{--page-nav-height:148px}
 .lp-nav .nav-top{height:148px}
 .lp-nav .lockup{align-items:flex-start;gap:4px}
 .product-name{font-size:18px}
 .lp-nav .lp-links{top:148px;max-height:calc(100svh - 148px)}
}
@media(max-width:380px){.product-name{font-size:16px}.product-credit{font-size:12px}}

/* Temporary webinar announcement uses the same measured header offset as all chapters. */
.webinar-announcement{background:#e5ede5;color:var(--green-950);border-bottom:1px solid var(--rule)}
.webinar-announcement[hidden]{display:none}
.webinar-announcement>.wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:10px}
.webinar-announcement p{margin:0;font-size:14px;line-height:1.4}
.webinar-announcement p span{display:block;font-size:12px;margin-bottom:2px}
.webinar-announcement b{font-weight:500}
.webinar-announcement a{display:flex;align-items:center;gap:6px;flex-shrink:0;min-height:44px;color:var(--green-950);font-size:14px;font-weight:700;text-decoration:underline;text-underline-offset:4px}
.lp-nav .webinar-announcement a:focus-visible{outline-color:var(--green-700)}
@media(max-width:1000px){
 .lp-nav .lp-menu-btn{top:50px}
 .lp-nav .lp-links{top:var(--page-nav-height);max-height:calc(100svh - var(--page-nav-height))}
 .webinar-announcement>.wrap{gap:16px;padding-block:8px}
 .webinar-announcement p{font-size:12px}.webinar-announcement p span{font-size:11px}
 .webinar-announcement a{font-size:13px}
}

/* Nov 9: Pascal’s three entry points share the brand row; all story sections remain. */
.lp-nav .product-lockup{align-items:flex-start;text-align:left;flex-shrink:0}
@media(min-width:1001px){
 .lp-nav .nav-top{height:80px;gap:20px}
 .lp-nav .product-name{font-size:18px}
 .lp-nav .lp-links{margin:0 0 0 auto;gap:20px;height:44px;padding:0;flex-shrink:0}
 .lp-nav .lp-links a{min-height:44px;font-size:14px}
 .lp-nav .lp-links a:after{bottom:4px}
 .lp-nav .nav-cta{margin:0;flex-shrink:0}
}
/* Match Healthspan’s live webinar banner: cream surface and a clear forest action. */
.webinar-announcement{background:#f6f6f4}
.webinar-announcement a{padding:10px 16px;background:var(--green-900);color:var(--paper);font-size:13px;font-weight:500;text-decoration:none}
.webinar-announcement a:hover{background:var(--green-700)}
.lp-nav .webinar-announcement a:focus-visible{outline-color:var(--green-900)}
@media(max-width:650px){
 .webinar-announcement>.wrap{flex-wrap:wrap;gap:8px;padding-block:10px}
 .webinar-announcement a{min-height:44px}
}

/* Pascal, Nov 11: a distinct, dismissible announcement follows the main navigation. */
.webinar-announcement{background:#e5ede5;border-top:1px solid #cad8cd;border-bottom:0}
.webinar-announcement p{flex:1;min-width:0}
.webinar-dismiss{display:grid;place-items:center;flex:0 0 44px;width:44px;height:44px;border:0;background:transparent;color:var(--green-950);cursor:pointer}
.webinar-dismiss:hover{background:#d3e0d5}
.lp-nav .webinar-dismiss:focus-visible{outline-color:var(--green-900)}
@media(max-width:650px){
 .webinar-announcement>.wrap{position:relative;padding-right:calc(var(--page-gutter) + 44px)}
 .webinar-announcement p{flex-basis:100%}
 .webinar-dismiss{position:absolute;right:var(--page-gutter);top:8px}
}