:root{--home-paper:#f6f5f2;--home-white:#fff;--home-navy:#0b1220;--home-ink:#141c2e;--home-text:#263147;--home-muted:#626a79;--home-line:#ded9d0;--home-blue:#2f6bc4;--home-sky:#59c9e9;--home-sky-2:#86d6f0;--home-teal:#34b6b0;--data-parents:#34b6b0;--data-network:#e29c76;--data-occasions:#13233f;--data-growth:#59c9e9}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:112px}
body{margin:0;background:var(--home-paper);color:var(--home-text);font-family:Archivo,Arial,sans-serif;font-size:16px;line-height:1.55}
a{color:inherit}
button,input{font:inherit}
.preview-banner{position:relative;z-index:501;padding:7px 16px;background:var(--home-navy);color:#aeb9cc;text-align:center;font-size:10px;font-weight:750;letter-spacing:.14em;text-transform:uppercase}
.replacement-wrap{width:min(1200px,calc(100% - 48px));margin:0 auto}
.home-eyebrow{margin:0;color:var(--home-blue);font-size:10px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
.home-eyebrow.pale{color:var(--home-sky)}

/* Reused PR #27 shell language, contained to the preview. */
.replacement-nav,.replacement-nav *,.site-footer,.site-footer *{box-sizing:border-box}
.replacement-nav{position:sticky;top:0;z-index:500;background:rgba(246,245,242,.97);border-bottom:1px solid var(--home-line);color:var(--home-ink);backdrop-filter:blur(14px)}
.replacement-nav-in{height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.replacement-logo{display:inline-flex;align-items:center;gap:10px;color:inherit;text-decoration:none;flex:0 0 auto}
.replacement-logo svg{display:block;width:29px;height:29px}
.replacement-logo strong{font-size:22px;line-height:1;font-weight:800;letter-spacing:-.045em}
.replacement-links{display:flex;align-items:center;gap:25px;margin-left:auto}
.replacement-links a{color:#4f596d;text-decoration:none;font-size:13px;font-weight:700;white-space:nowrap}
.replacement-links a:hover{color:var(--home-ink)}
.replacement-actions{display:flex;align-items:center;gap:9px}
.replacement-button,.home-button{display:inline-flex;min-height:44px;align-items:center;justify-content:center;padding:11px 17px;border:1px solid var(--home-blue);border-radius:8px;background:var(--home-blue);color:#fff;text-decoration:none;font-size:13px;font-weight:750;line-height:1.1;white-space:nowrap;transition:background-color .16s,border-color .16s,color .16s,transform .16s}
.replacement-button.secondary,.home-button.secondary{background:transparent;border-color:#aeb6c3;color:var(--home-ink)}
.replacement-button:hover,.home-button.primary:hover{background:#245bab;border-color:#245bab;transform:translateY(-1px)}
.replacement-button.secondary:hover,.home-button.secondary:hover{background:#fff;border-color:var(--home-blue);color:var(--home-blue);transform:translateY(-1px)}
.replacement-menu-button{position:relative;display:none;width:44px;height:44px;border:1px solid #c9c7c0;border-radius:8px;background:transparent;cursor:pointer}
.replacement-menu-button::before,.replacement-menu-button::after{content:"";position:absolute;left:12px;width:19px;height:2px;background:var(--home-ink);transition:transform .16s}
.replacement-menu-button::before{top:17px}.replacement-menu-button::after{top:25px}
.replacement-menu-button[aria-expanded=true]::before{top:21px;transform:rotate(45deg)}
.replacement-menu-button[aria-expanded=true]::after{top:21px;transform:rotate(-45deg)}
.replacement-mobile-menu{display:none;padding:4px 0 20px;border-top:1px solid var(--home-line)}
.replacement-mobile-menu a{display:block;min-height:44px;padding:13px 0;border-bottom:1px solid #e8e5df;color:var(--home-ink);text-decoration:none;font-size:15px;font-weight:700}
.replacement-mobile-menu .replacement-mobile-action{margin-top:12px;padding:13px 16px;border:1px solid var(--home-blue);border-radius:8px;text-align:center}
.replacement-mobile-menu .replacement-mobile-action.primary{background:var(--home-blue);color:#fff}
.replacement-mobile-menu .replacement-mobile-action.secondary{background:transparent;border-color:#aeb6c3}

/* 1 — Hero */
.home-hero{padding:clamp(70px,8vw,118px) 0 clamp(74px,8vw,116px);background:var(--home-paper)}
.home-hero-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(470px,1.1fr);gap:clamp(42px,6vw,88px);align-items:center}
.home-hero-copy h1{margin:18px 0 0;color:var(--home-ink);font-size:clamp(66px,7vw,105px);font-weight:790;line-height:.86;letter-spacing:-.07em}
.home-hero-copy h1 span{display:block}.home-hero-copy h1 span:last-child{color:var(--home-blue)}
.home-hero-copy>p:not(.home-eyebrow){max-width:650px;margin:25px 0 0;color:var(--home-text);font-size:17px;line-height:1.62}
.hero-context-link{color:var(--home-blue);font-weight:650;text-decoration:underline;text-decoration-color:rgba(47,107,196,.42);text-decoration-thickness:1px;text-underline-offset:.2em}
.hero-context-link:hover,.hero-context-link:focus-visible{text-decoration-color:currentColor}
.home-hero-copy .hero-lead{color:var(--home-ink)!important;font-size:clamp(20px,1.8vw,24px)!important;font-weight:650;line-height:1.45!important}
.home-hero-copy .hero-formula{color:var(--home-ink)!important;font-weight:750}
.hero-actions{display:flex;flex-wrap:wrap;gap:11px;margin-top:32px}
.hero-growth{min-width:0}
.growth-plot{position:relative;aspect-ratio:1.08/1}
.growth-plot svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.curve{fill:none;stroke-width:4.5;stroke-linecap:round}
.curve.contribution{stroke:url(#contribution-curve)}.curve.growth{stroke:url(#growth-curve)}
.node{fill:var(--home-paper);stroke-width:4}.node.birth{stroke:var(--home-teal)}.node.age25{stroke:var(--home-sky)}.node.age65{stroke:var(--home-blue)}
.growth-label{position:absolute;display:flex;flex-direction:column;z-index:2}
.growth-label small{color:var(--home-muted);font-size:9px;font-weight:800;letter-spacing:.15em}
.growth-label strong{margin-top:3px;color:var(--home-ink);font-size:clamp(20px,2.1vw,29px);font-weight:800;line-height:1;letter-spacing:-.04em;white-space:nowrap}
.growth-label span{margin-top:6px;color:var(--home-muted);font-size:11px;font-weight:700}
.growth-label.birth{left:1%;bottom:4%}.growth-label.age25{left:42%;bottom:0}.growth-label.age65{right:15%;top:0;text-align:right;align-items:flex-end}
.growth-label.age65 strong{color:var(--home-blue);font-size:clamp(27px,3vw,42px)}
.hero-method{max-width:64ch;margin:24px auto 0;color:#777f8d;font-size:11px;line-height:1.55}

/* 2 — Why time matters */
.why-time{padding:clamp(76px,8vw,118px) 0;background:#fff;border-top:1px solid var(--home-line);border-bottom:1px solid var(--home-line)}
.why-time-grid{display:grid;grid-template-columns:minmax(330px,.86fr) minmax(0,1.14fr);gap:clamp(48px,7vw,100px);align-items:center}
.why-time-visual figure{margin:22px 0 0;overflow:hidden;aspect-ratio:4/5;border:1px solid #cce2eb;border-radius:18px;background:#edf7fa;box-shadow:0 24px 60px rgba(31,77,132,.08)}
.homepage-graphic{display:block;width:100%;height:100%;border:0;object-fit:contain;object-position:50% 50%;background:transparent}
.why-time-copy{max-width:850px}
.why-time-copy h2{margin:0;color:var(--home-ink);font-size:clamp(40px,5.1vw,70px);font-weight:760;line-height:1.02;letter-spacing:-.06em}
.why-time-copy p{max-width:760px;margin:28px 0 0;color:var(--home-text);font-size:clamp(18px,1.7vw,22px);line-height:1.58}
.why-time-copy .why-time-prompt{padding-top:27px;border-top:1px solid var(--home-line);color:var(--home-blue);font-weight:750}

/* 3 — Canonical calculator. Simplified presentation around the frozen runtime. */
.home-calculator{padding:clamp(72px,8vw,104px) 0 clamp(84px,9vw,118px)}
.calculator-introduction{width:min(1040px,calc(100% - 48px));margin:0 auto 24px}
.calculator-introduction h2{max-width:760px;margin:10px 0 0;color:var(--home-ink);font-size:clamp(28px,3.1vw,42px);font-weight:760;line-height:1.04;letter-spacing:-.045em}
.calculator-system{width:min(1040px,calc(100% - 48px));max-width:1040px;margin:0 auto;overflow:hidden;border:1px solid rgba(222,217,208,.92);border-radius:22px;background:var(--home-white);box-shadow:0 24px 70px rgba(11,18,32,.09)}
.calculator-system .calculator-frame{display:block;overflow:visible;border:0;border-radius:0;box-shadow:none}
.calculator-result-header{display:grid;min-height:118px;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:42px;align-items:center;margin:14px 16px 0;padding:14px 24px 12px;border:1px solid #bdd7ec;border-radius:12px;background:#e7f2fb;box-shadow:0 10px 26px rgba(47,107,196,.09),inset 0 1px 0 rgba(255,255,255,.78)}
.calculator-result-header .path-result,.calculator-result-header .weekly-result{display:flex;min-width:0;flex-direction:column}
.calculator-result-header .path-result strong{margin-top:3px;color:var(--home-ink);font-size:clamp(40px,4.5vw,58px);font-weight:800;line-height:.96;letter-spacing:-.055em}
.calculator-result-header .weekly-result strong{color:var(--home-blue);font-size:clamp(27px,3vw,38px);font-weight:800;line-height:1;letter-spacing:-.04em}
.calculator-result-header .path-result>span,.calculator-result-header .weekly-result>span{margin-top:5px;color:var(--home-muted);font-size:13px;font-weight:700}
.calculator-body{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
.calculator-system .inputs{padding:15px 30px 17.09375px;border-right:1px solid var(--home-line)}
.calculator-system .control{margin-top:9px}
.calculator-system input[type=range]{accent-color:var(--home-blue)}
.calculator-system .control-copy{margin-bottom:4px}
.calculator-system .control-copy label span{margin-top:1px;line-height:1.25}
.calculator-system .control-copy label .age-interaction-cue{margin-top:4px;color:var(--home-blue);font-size:10.5px;font-weight:650}
.compounding-visual{display:flex;min-width:0;flex-direction:column;padding:24px 30px 22px;background:#f8fafc}
.compounding-visual h2{max-width:430px;margin:0;color:var(--home-ink);font-size:clamp(23px,2.35vw,30px);font-weight:740;line-height:1.08;letter-spacing:-.035em}
.compound-note{max-width:440px;margin:9px 0 0;color:var(--home-muted);font-size:12.5px;line-height:1.45}
.compound-chart{display:grid;grid-template-columns:52px minmax(0,1fr);align-items:stretch;align-self:center;width:min(100%,380px);height:265.125px;margin-top:20px}
.compound-axis{min-width:0;padding:42px 0 24px}
.compound-scale{position:relative;height:100%;border-right:1px solid #cbd2dc}
.compound-scale span{position:absolute;right:8px;color:#7a8392;font-size:10px;font-weight:700;line-height:1;white-space:nowrap}
.compound-scale span::after{position:absolute;right:-8px;width:5px;border-top:1px solid #aeb7c5;content:""}
#compound-scale-max{top:0;transform:translateY(-50%)}
#compound-scale-250k{top:50%;transform:translateY(-50%)}
#compound-scale-zero{bottom:0;transform:translateY(50%)}
.compound-bars{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));align-items:end;height:100%;gap:8px}
.compound-column{position:relative;display:grid;grid-template-rows:42px minmax(0,1fr) 24px;justify-items:center;align-self:stretch;min-width:0}
.compound-value{position:absolute;left:50%;z-index:1;padding:5px 8px;transform:translateX(-50%);border:1px solid #d5dce5;border-radius:6px;background:#fff;color:var(--home-ink);font-size:clamp(14px,1.5vw,17px);font-weight:800;line-height:1;letter-spacing:-.025em;white-space:nowrap;transition:bottom .24s ease}
.compound-stack{grid-row:2;display:flex;flex-direction:column-reverse;width:min(72px,62%);height:100%;overflow:hidden;border-radius:5px 5px 0 0;background:transparent}
.compound-segment{display:block;width:100%;height:0;flex:0 0 auto;transition:height .24s ease}
.compound-segment.parents{background:var(--data-parents)}
.compound-segment.network{background:var(--data-network)}
.compound-segment.occasions{background:var(--data-occasions)}
.compound-segment.growth{background:var(--data-growth)}
.compound-age{grid-row:3;align-self:end;color:var(--home-muted);font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}
.calculator-stage{border-top:1px solid var(--home-line)}
.calculator-system .composition{padding:17px 28px 19px}
.calculator-system .composition .section-heading{grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:30px}
.calculator-system .composition .section-heading h2{font-size:clamp(23px,2.5vw,30px)}
.calculator-system .composition .section-heading>p{font-size:13px;line-height:1.5}
.calculator-system .composition-bar{height:14px;margin-top:10px}
.calculator-system .composition-key{gap:16px;margin-top:10px}
.calculator-system #composition-parents{background:var(--data-parents)}
.calculator-system #composition-network{background:var(--data-network)}
.calculator-system #composition-occasions{background:var(--data-occasions)}
.calculator-system #composition-growth{background:var(--data-growth)}
.calculator-system .composition-key i.parents{background:var(--data-parents)}
.calculator-system .composition-key i.network{background:var(--data-network)}
.calculator-system .composition-key i.occasions{background:var(--data-occasions)}
.calculator-system .composition-key i.growth{background:var(--data-growth)}
.calculator-system .method-note{max-width:none;margin:0;padding:10px 24px 12px;border-top:1px solid var(--home-line);background:var(--home-paper)}

/* 4 — Future */
.future-section{padding:clamp(80px,9vw,126px) 0;background:var(--home-navy);color:#fff}
.future-grid{display:grid;grid-template-columns:minmax(390px,1fr) minmax(0,1fr);gap:clamp(50px,7vw,104px);align-items:center}
.future-visual{width:100%;margin:0;overflow:visible;aspect-ratio:1/1;background:transparent}
.future-visual .homepage-graphic{display:block;width:100%;height:100%;object-fit:contain;object-position:50% 50%}
.future-copy{max-width:850px}
.future-copy h2{margin:18px 0 0;color:#fff;font-size:clamp(44px,5.6vw,76px);font-weight:760;line-height:.98;letter-spacing:-.06em}
.future-copy h2 span{display:block}.future-copy h2 span+span{color:var(--home-sky)}
.future-copy p{max-width:780px;margin:27px 0 0;color:rgba(255,255,255,.75);font-size:clamp(18px,1.55vw,21px);line-height:1.58}
.future-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:31px}
.future-actions .home-button{min-height:48px;padding:0 18px;border-color:rgba(255,255,255,.48);color:#fff;background:transparent}
.future-actions a.home-button:hover,.future-actions a.home-button:focus-visible{border-color:#fff;background:#fff;color:var(--home-navy)}
.future-actions .preview-pending{cursor:not-allowed;opacity:.58}


.site-footer{padding:54px 0 46px;background:#080e19;color:#fff}
.site-footer .replacement-footer-top{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-bottom:28px;border-bottom:1px solid #253149}
.site-footer .replacement-utilities{display:flex;align-items:center;flex-wrap:wrap;gap:9px 22px}
.site-footer .replacement-utilities a,.site-footer .replacement-utilities button{border:0;background:none;padding:0;color:#aeb9cc;text-decoration:none;font-size:13px;font-weight:600;cursor:pointer}
.site-footer .replacement-status{max-width:93ch;margin:24px 0 0;color:#8794aa;font-size:12.5px;line-height:1.65}.site-footer .replacement-status strong{color:#cdd5e2}.footer-logo{color:#fff}

/* Preview-safe consent UI. */
.ck{position:fixed;right:0;bottom:0;left:0;z-index:700;transform:translateY(102%);border-top:1px solid var(--home-line);background:#fff;box-shadow:0 -8px 34px rgba(11,18,32,.1);transition:transform .26s ease}.ck.on{transform:none}.ck-in{display:flex;align-items:center;gap:clamp(18px,3vw,44px);max-width:1200px;margin:0 auto;padding:18px 32px}.ck-tx{max-width:82ch;color:#5a6377;font-size:13.5px;line-height:1.55}.ck-tx strong{color:var(--home-ink)}.ck-tx a{color:var(--home-blue);font-weight:650}.ck-bt{display:flex;flex:0 0 auto;gap:10px;margin-left:auto}.ck-bt button{min-height:44px;padding:11px 22px;border-radius:8px;font-weight:700;cursor:pointer}.ck-no{border:1px solid var(--home-line);background:transparent;color:#5a6377}.ck-yes{border:1px solid var(--home-ink);background:var(--home-ink);color:#fff}

.replacement-button:focus-visible,.home-button:focus-visible,.replacement-menu-button:focus-visible,.replacement-mobile-menu a:focus-visible,.prototype-link:focus-visible,.replacement-utilities a:focus-visible,.replacement-utilities button:focus-visible,.ck button:focus-visible{outline:3px solid var(--home-sky);outline-offset:3px}

@media (max-width: 980px){
  .replacement-links{display:none}.replacement-actions .secondary{display:none}.replacement-menu-button{display:inline-block}.replacement-mobile-menu.open{display:block}
  .home-hero-grid{grid-template-columns:1fr;gap:40px}.home-hero-copy{max-width:800px}.hero-growth{max-width:720px;margin:0 auto;width:100%}
  .why-time-grid,.future-grid{grid-template-columns:1fr;gap:34px}.why-time-visual{max-width:640px}.why-time-visual figure{aspect-ratio:4/5}.future-visual{max-width:640px;aspect-ratio:1/1}.calculator-introduction{grid-template-columns:1fr;gap:22px}
}
@media (max-width: 760px){
  html{scroll-padding-top:100px}.replacement-wrap{width:min(100% - 32px,1200px)}.replacement-nav-in{height:66px}.replacement-logo strong{font-size:21px}.replacement-actions>.replacement-button{display:none}
  .home-hero{padding:56px 0 70px}.home-hero-copy h1{font-size:clamp(58px,16vw,76px)}.home-hero-copy>p:not(.home-eyebrow){font-size:16px}.home-hero-copy .hero-lead{font-size:20px!important}.hero-actions{display:grid;grid-template-columns:1fr}.hero-actions a{width:100%}
  .growth-plot{width:100%;min-height:0;aspect-ratio:1/1.12}.growth-label strong{font-size:20px}.growth-label.age65 strong{font-size:28px}.hero-method{font-size:10.5px}
  .why-time{padding:64px 0}.why-time-copy h2{font-size:43px}.why-time-copy p{font-size:17px}.why-time-visual figure{margin-top:18px}
  .home-calculator{padding:58px 0 72px}.calculator-system{width:calc(100% - 32px);border-radius:15px}.calculator-system .calculator-frame{border-radius:0}.calculator-result-header{column-gap:20px;padding:22px 20px 18px}.calculator-body{grid-template-columns:1fr}.calculator-system .inputs{padding:28px 20px;border-right:0;border-bottom:1px solid var(--home-line)}.compounding-visual{min-height:480px;padding:28px 20px}.calculator-system .composition{padding:24px 20px}.calculator-system .composition .section-heading{grid-template-columns:1fr;gap:13px}.calculator-system .method-note{padding:15px 20px 18px}
  .future-section{padding:68px 0}.future-copy h2{font-size:47px}.future-copy p{font-size:17px}
  .site-footer{padding:42px 0 36px}.site-footer .replacement-footer-top{align-items:flex-start;flex-direction:column}
  .ck-in{flex-direction:column;align-items:stretch;gap:14px;padding:16px 20px}.ck-bt{margin-left:0}.ck-bt button{flex:1}
}
@media (max-width: 460px){
  .calculator-result-header{grid-template-columns:1fr}.calculator-result-header .path-result{padding-top:14px;border-top:1px solid #cddbe7}
  .growth-plot{min-height:370px}.growth-label.birth{bottom:0}.growth-label.age25{left:38%;bottom:-3%}.growth-label.age25 span{max-width:92px}.growth-label.age65{right:17%;top:-1%}.growth-label.age65 strong{font-size:24px}.growth-label.age65 span{max-width:115px}
  .home-hero-copy h1{font-size:56px}.why-time-copy h2{font-size:39px}.future-copy h2{font-size:42px}
  .ck-bt{flex-direction:column}
}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}.replacement-menu-button::before,.replacement-menu-button::after,.replacement-button,.home-button,.prototype-link span,.ck,.compound-value,.compound-segment{transition:none}}