@font-face{font-family:"Manrope";src:url("/assets/brand/manrope-variable.woff2") format("woff2");font-style:normal;font-weight:400 800;font-display:swap}
@font-face{font-family:"Space Grotesk";src:url("/assets/brand/space-grotesk-variable.woff2") format("woff2");font-style:normal;font-weight:500 700;font-display:swap}
:root{
  color-scheme:light dark;
  --ink-950:#0b141b;--ink-900:#101c24;--ink-800:#1b2a33;--ink-700:#31434c;
  --paper:#f1f5f5;--surface:#fbfdfc;--surface-alt:#e8eeee;--surface-blue:#dff3f6;
  --text:#111c23;--muted:#52636b;--muted-light:#9aabb0;--border:#b8c6c8;--border-dark:#586b71;
  --cyan:#008ca5;--cyan-dark:#006f84;--orange:#008ca5;--orange-dark:#006f84;--orange-bright:#008ca5;
  --success:#087563;--warning:#99501e;--danger:#a33b3b;
  --storage:#008ca5;--home:#008ca5;--pool:#008ca5;--shipping:#008ca5;--lifestyle:#008ca5;--sports:#008ca5;--business:#008ca5;
  --display:"Space Grotesk","Avenir Next","Segoe UI",sans-serif;
  --sans:"Manrope","Avenir Next","Segoe UI",sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --radius-control:4px;--radius-card:4px;--radius-feature:4px;
  --shadow-sm:0 8px 24px rgba(23,50,58,.06);--shadow-md:0 18px 46px rgba(23,50,58,.09);--shadow-lg:0 28px 72px rgba(23,50,58,.13);
  --max:1320px;--calc-max:1220px;--text-max:780px;--shelf-accent:var(--cyan)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--paper);color:var(--text);font:16px/1.65 var(--sans);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
::selection{background:rgba(0,140,165,.2);color:var(--ink-950)}
a{color:var(--cyan-dark);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--ink-950)}
img,svg{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}
h1,h2,h3,h4{margin:0 0 .55em;color:var(--ink-950);font-family:var(--display);font-weight:650;line-height:1.02;letter-spacing:-.045em;text-wrap:balance}
h1{font-size:clamp(2.9rem,6.4vw,6.8rem)}
h2{font-size:clamp(2rem,4.1vw,4rem)}
h3{font-size:clamp(1.15rem,1.8vw,1.45rem);line-height:1.16;letter-spacing:-.025em}
p{margin:.5em 0 1em}
ul,ol{padding-left:1.25rem}
code,.numeric,.result-card strong,input[type="number"],.search-open kbd,time{font-family:var(--mono);font-variant-numeric:tabular-nums}
.wrap{width:min(100% - 64px,var(--max));margin-inline:auto}
.calculator-shell{max-width:var(--calc-max)}
.meta{color:var(--muted);font-size:.82rem;line-height:1.45}
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.skip-link{position:fixed;left:12px;top:-80px;z-index:200;background:var(--surface);color:var(--ink-950);border:2px solid var(--cyan);border-radius:var(--radius-control);padding:10px 14px;font-weight:800;transition:top .15s ease}
.skip-link:focus{top:12px}

/* Shared navigation */
.site-header{position:sticky;top:0;z-index:70;background:rgba(251,253,252,.96);border-bottom:1px solid var(--border);color:var(--ink-950)}
.nav{display:flex;align-items:center;min-height:70px;gap:30px}
.brand{display:inline-flex;align-items:center;gap:10px;color:inherit;text-decoration:none;font-family:var(--display);font-size:1.03rem;font-weight:700;letter-spacing:-.035em;white-space:nowrap}
.brand:hover{color:inherit;text-decoration:none}
.brand img{width:38px;height:38px;flex:0 0 38px}
.brand span span{color:var(--cyan-dark)}
.navlinks{display:flex;align-items:center;justify-content:center;gap:4px;margin-left:auto}
.navlinks a,.methodology-link{position:relative;color:var(--muted);text-decoration:none;padding:10px 8px;font-size:.8rem;font-weight:750;white-space:nowrap}
.navlinks a:after,.methodology-link:after{content:"";position:absolute;left:8px;right:8px;bottom:5px;height:2px;background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
.navlinks a:hover,.navlinks a.active,.methodology-link:hover{color:var(--ink-950)}
.navlinks a:hover:after,.navlinks a.active:after,.methodology-link:hover:after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:8px}
.search-open,.menu-btn{min-height:40px;border:1px solid var(--ink-900);border-radius:var(--radius-control);background:var(--ink-900);color:#f4f8f7;padding:8px 12px;font-family:var(--display);font-weight:700;line-height:1;white-space:nowrap;transition:background .16s ease,border-color .16s ease,color .16s ease,transform .12s ease}
.search-open:hover,.menu-btn:hover{background:var(--cyan-dark);border-color:var(--cyan-dark);color:#fff}
.search-open:active,.menu-btn:active,.btn:active{transform:translateY(1px)}
.search-open kbd{display:inline-grid;place-items:center;min-width:22px;height:22px;margin-left:5px;border:1px solid rgba(255,255,255,.35);border-radius:2px;font-size:.7rem}
.trust-chip,.site-header .trust-chip{display:none}
.menu-btn{display:none}
.mobile-menu[hidden],.search-modal[hidden]{display:none!important}
.mobile-menu.open{position:fixed;z-index:65;top:70px;left:0;right:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:1px;padding:1px max(32px,calc((100% - var(--max))/2));background:var(--border);border-bottom:1px solid var(--border);box-shadow:var(--shadow-md)}
.mobile-menu.open a{display:flex;align-items:center;min-height:48px;padding:10px 14px;background:var(--surface);color:var(--text);text-decoration:none;font-weight:750}
.mobile-menu.open a:hover{background:var(--surface-blue);color:var(--ink-950)}

/* Buttons and labels */
.hero-actions,.actions,.searchbox-inline,.cta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.hero-actions{margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 18px;border:1px solid var(--cyan-dark);border-radius:var(--radius-control);background:var(--cyan-dark);color:#fff;text-decoration:none;font-family:var(--display);font-size:.88rem;font-weight:700;line-height:1.1;white-space:nowrap;transition:background .16s ease,border-color .16s ease,color .16s ease,transform .12s ease}
.btn:hover{background:var(--ink-900);border-color:var(--ink-900);color:#fff;text-decoration:none}
.btn.primary,.primary-action{background:var(--cyan-dark);color:#fff}
.btn.secondary,.btn.ghost{border-color:var(--border-dark);background:transparent;color:var(--ink-900)}
.btn.secondary:hover,.btn.ghost:hover{background:var(--ink-900);border-color:var(--ink-900);color:#fff}
.pillrow,.trust-grid,.multiplier-chips{display:flex;flex-wrap:wrap;gap:7px}
.pill,.badge,.tag,.trust-chip{display:inline-flex;align-items:center;width:max-content;max-width:100%;padding:4px 8px;border:1px solid var(--border);border-radius:2px;background:var(--surface-alt);color:var(--ink-800);font-family:var(--mono);font-size:.66rem;font-weight:700;line-height:1.25;letter-spacing:.01em}
.status-index{border-color:#83c8bc;background:#e1f5f0;color:#075b4e}
.status-review{border-color:#d9b188;background:#f7ece0;color:#76410f}
.status-safety{border-color:#d9a2a2;background:#f7e8e8;color:#812b2b}
.eyebrow{display:block;margin-bottom:16px;color:var(--cyan-dark);font-family:var(--sans);font-size:.78rem;font-weight:800;letter-spacing:0;text-transform:none}

/* Homepage hero */
.hero{position:relative;overflow:hidden;background:var(--surface);border-bottom:1px solid var(--border);padding:clamp(54px,7vw,92px) 0}
.hero-grid{display:grid;grid-template-columns:minmax(0,.82fr) minmax(480px,1.18fr);align-items:center;gap:clamp(44px,7vw,96px);min-height:min(680px,calc(100dvh - 70px))}
.hero h1{max-width:720px;margin-bottom:24px;color:var(--ink-950);font-size:clamp(3.4rem,6.7vw,7.25rem);line-height:.89;letter-spacing:-.075em}
.hero h1 em{display:block;color:var(--cyan-dark);font-style:normal}
.hero p{max-width:560px;margin-bottom:0;color:var(--muted);font-size:clamp(1rem,1.4vw,1.18rem);line-height:1.6}
.hero-kicker{display:flex;align-items:center;gap:12px;margin-bottom:22px;color:var(--muted);font-size:.76rem;font-weight:800}
.hero-kicker:before{content:"";width:42px;height:2px;background:var(--cyan)}
.hero-card{position:relative;border:1px solid var(--ink-900);background:var(--surface-alt);padding:0;box-shadow:14px 14px 0 var(--surface-blue);transform:none}
.hero-card:before{content:"";position:absolute;left:-1px;top:-1px;width:76px;height:7px;background:var(--cyan);z-index:2}
.hero-card img,.hero-card .hero-photo{display:block;width:100%;aspect-ratio:16/10;object-fit:cover;object-position:center}
.hero-card .hero-photo{filter:saturate(.78) contrast(1.03)}
.example-mini{display:none}
.hero .pillrow{display:none}
.hero-proof{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));max-width:650px;margin:36px 0 0;padding:20px 0 0;border-top:1px solid var(--border);list-style:none}
.hero-proof li{display:grid;gap:2px;padding-right:18px}
.hero-proof li+li{padding-left:18px;border-left:1px solid var(--border)}
.hero-proof strong{color:var(--ink-950);font-family:var(--display);font-size:.84rem;line-height:1.3}
.hero-proof span{color:var(--muted);font-size:.7rem;line-height:1.35}

/* Homepage calculator finder */
.search-module{position:relative;margin:0 auto;padding:clamp(44px,6vw,76px) 0;border-bottom:1px solid var(--border);background:transparent;box-shadow:none}
.search-eyebrow{display:block;margin-bottom:12px;color:var(--cyan-dark);font-size:.78rem;font-weight:800}
.search-module h2{max-width:820px;margin-bottom:12px;font-size:clamp(1.8rem,4vw,3.7rem)}
.search-hint{max-width:620px;margin:0 0 20px;color:var(--muted);font-size:.9rem}
.searchbox,.search-module input{width:100%;min-height:66px;border:0;border-bottom:2px solid var(--ink-900);border-radius:0;background:transparent;color:var(--text);padding:12px 4px;font-size:clamp(1rem,1.5vw,1.18rem);box-shadow:none;transition:border-color .16s ease,background .16s ease}
.searchbox::placeholder,.search-module input::placeholder{color:#718187;opacity:1}
.searchbox:hover,.search-module input:hover{border-color:var(--cyan-dark)}
.searchbox:focus,.search-module input:focus{border-color:var(--cyan);background:var(--surface);outline:3px solid var(--cyan);outline-offset:3px}
.suggestions,.suggested,.filterbar,.usecase-grid{display:flex;flex-wrap:wrap;align-items:center;gap:7px}
.suggestions{margin-top:16px}
.suggestions a,.suggested a,.filterbar button,.usecase-grid a{display:inline-flex;align-items:center;min-height:36px;padding:7px 10px;border:1px solid var(--border);border-radius:var(--radius-control);background:var(--surface);color:var(--muted);font-size:.74rem;font-weight:750;text-decoration:none;transition:background .14s ease,border-color .14s ease,color .14s ease,transform .12s ease}
.suggestions a:hover,.suggested a:hover,.filterbar button:hover,.usecase-grid a:hover,.filterbar button.active,.filterbar button[aria-pressed="true"]{border-color:var(--cyan-dark);background:var(--surface-blue);color:var(--ink-950)}
.suggestions a:active,.filterbar button:active{transform:translateY(1px)}
.filterbar{margin-top:20px;padding-top:20px;border-top:1px solid var(--border)}
.search-meta{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:42px;margin-top:14px}
.search-summary{margin:0;color:var(--muted);font-size:.78rem;font-weight:700}
.clear-search{min-height:38px;padding:7px 10px;border:0;border-bottom:1px solid var(--border-dark);background:transparent;color:var(--cyan-dark);font-size:.74rem;font-weight:800}
.clear-search:hover{border-color:var(--cyan-dark);color:var(--ink-950)}
.calc-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:28px;margin-top:24px;border-top:1px solid var(--border)}
.calc-link{position:relative;display:grid;grid-template-columns:1fr auto;gap:6px 14px;min-width:0;padding:20px 4px;border:0;border-bottom:1px solid var(--border);border-radius:0;background:transparent;color:var(--text);text-decoration:none;transition:padding-left .16s ease,background .16s ease}
.calc-link:before{content:"";position:absolute;left:0;top:20px;bottom:20px;width:2px;background:var(--cyan);transform:scaleY(0);transform-origin:top;transition:transform .16s ease}
.calc-link:hover{padding-left:14px;background:var(--surface);color:var(--text);text-decoration:none;box-shadow:none;transform:none}
.calc-link:hover:before{transform:scaleY(1)}
.calc-link b,.calc-link strong,.calc-link>.meta:first-of-type{grid-column:1/-1}
.calc-link b,.calc-link strong{font-family:var(--display);font-size:1rem;line-height:1.3}
.calc-link>.meta:first-of-type{display:block;overflow:visible}
.search-empty{grid-column:1/-1;padding:24px 4px;border-bottom:1px solid var(--border)}
.search-empty strong{font-family:var(--display)}
.search-empty p{margin:4px 0 0;color:var(--muted);font-size:.84rem}

/* Local, account-free return path */
.recent-section{padding:42px 0;border-bottom:1px solid var(--border)}
.recent-section[hidden]{display:none}
.recent-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:18px}
.recent-head .search-eyebrow{margin-bottom:6px}
.recent-head h2{margin:0;font-size:clamp(1.55rem,3vw,2.35rem)}
.recent-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--border)}
.recent-card{display:grid;align-content:start;gap:7px;min-width:0;padding:18px;border-right:1px solid var(--border);border-bottom:1px solid var(--border);color:var(--text);text-decoration:none}
.recent-card:first-child{padding-left:0}
.recent-card:last-child{border-right:0}
.recent-card strong{font-family:var(--display);line-height:1.25}
.recent-card>.meta:first-of-type{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2}
.recent-card:hover{background:var(--surface);color:var(--text)}
body.overlay-open{overflow:hidden}

/* Home sections */
.section{padding:clamp(72px,9vw,124px) 0}
main>.section+.section{padding-top:0}
.section-head{display:block;max-width:820px;margin-bottom:clamp(32px,5vw,58px)}
.section-head h2{margin:0;max-width:820px}
.section-head p{max-width:680px;margin:16px 0 0;color:var(--muted);font-size:1rem}
.grid,.grid2,.grid4,.shelf-grid,.popular-grid,.review-grid,.decision-grid,.calculator-grid,.status-grid{display:grid}
.grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid2{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.grid4{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.card,.content,.content-card,.quick-card,.formula-card,.example-card,.mistake-card,.faq-card,.source-notes-card,.assumption-card,.intent-card,.reader-value-card,.right-rail-box,.report-box,.diagram-card,.source-map-card{border:0;border-top:1px solid var(--border);border-radius:0;background:transparent;box-shadow:none}
.card{padding:24px 0}
.home .decision-workbench{padding:clamp(72px,9vw,124px) 0;background:var(--surface);color:var(--text);border-bottom:1px solid var(--border)}
.home .decision-workbench .section-head h2,.home .decision-workbench h2,.home .decision-workbench h3{color:var(--ink-950)}
.home .decision-workbench .section-head p{color:var(--muted)}
.home .decision-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:56px;border-top:1px solid var(--border)}
.home .decision-grid article{position:relative;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px 22px;min-height:0;padding:24px 0;border:0;border-bottom:1px solid var(--border);border-radius:0;background:transparent;overflow:visible}
.home .decision-grid article:before{display:none}
.home .decision-grid h3{margin:0;font-size:1.24rem}
.home .decision-grid p{grid-column:1;max-width:46ch;margin:0;color:var(--muted);font-size:.88rem}
.home .decision-grid a{grid-column:2;grid-row:1/3;align-self:center;color:var(--cyan-dark);font-family:var(--display);font-size:.78rem;font-weight:700;text-decoration:none;white-space:nowrap}
.home .decision-grid a:after{content:" +";margin-left:5px;color:var(--cyan-dark)}
.home .decision-grid article:hover h3{color:var(--cyan-dark)}
.shelf-grid{grid-template-columns:repeat(12,minmax(0,1fr));gap:16px}
.shelf-card,.calc-card{position:relative;display:flex;min-width:0;flex-direction:column;color:var(--text);text-decoration:none;transition:border-color .16s ease,transform .16s ease,box-shadow .16s ease}
.shelf-card{grid-column:span 4;min-height:340px;padding:24px;border:1px solid var(--border);border-radius:var(--radius-card);background:var(--surface);overflow:hidden}
.home .shelf-grid .shelf-card:nth-child(1){grid-column:span 5}
.home .shelf-grid .shelf-card:nth-child(2){grid-column:span 7}
.home .shelf-grid .shelf-card:nth-child(3){grid-column:span 4}
.home .shelf-grid .shelf-card:nth-child(4){grid-column:span 4}
.home .shelf-grid .shelf-card:nth-child(5){grid-column:span 4}
.home .shelf-grid .shelf-card:nth-child(6){grid-column:span 5}
.home .shelf-grid .shelf-card:nth-child(7){grid-column:span 7}
.shelf-card:before,.calc-card:before{content:"";position:absolute;left:0;top:0;bottom:auto;width:100%;height:3px;background:var(--cyan)}
.shelf-card:after{display:none}
.shelf-card img,.shelf-icon-large,.shelf-icon{width:42px;height:42px;margin:4px 0 22px;padding:8px;border-radius:var(--radius-control);background:var(--surface-alt)}
.shelf-card .shelf-photo{display:block;width:calc(100% + 48px);height:170px;margin:-24px -24px 24px;padding:0;border-radius:0;background:var(--surface-alt);object-fit:cover;object-position:center;filter:grayscale(.25) saturate(.68) contrast(1.03);transition:transform .24s ease,filter .24s ease}
.home .shelf-grid .shelf-card:nth-child(2) .shelf-photo,.home .shelf-grid .shelf-card:nth-child(7) .shelf-photo{height:205px}
.shelf-card:hover .shelf-photo{transform:scale(1.018);filter:grayscale(0) saturate(.84) contrast(1.03)}
.shelf-icon-large{width:62px;height:62px;padding:12px}
.shelf-card h3,.calc-card h3{margin-bottom:10px;font-size:1.24rem}
.shelf-card p,.calc-card p{margin:0 0 16px;color:var(--muted);font-size:.88rem;line-height:1.55}
.shelf-card .feature-list{margin:0 0 20px;padding:0;list-style:none}
.feature-list li{margin:6px 0;color:var(--muted);font-size:.78rem}
.feature-list li:before{content:"-";margin-right:7px;color:var(--cyan)}
.shelf-stats,.count-line{margin-top:auto;padding-top:14px;border-top:1px solid var(--border);color:var(--muted);font:700 .7rem/1.4 var(--mono)}
.shelf-card:hover{border-color:var(--cyan-dark);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.card-cta{display:inline-flex;align-items:center;align-self:flex-start;min-height:42px;margin-top:auto;color:var(--ink-900);font-family:var(--display);font-size:.82rem;font-weight:700;text-decoration:none}
.card-cta:after{content:"+";margin-left:8px;color:var(--cyan-dark);font-size:1rem;transition:transform .15s ease}
.calc-card:hover .card-cta:after,.shelf-card:hover .card-cta:after{transform:translateX(2px)}
.calculator-grid,.popular-grid{grid-template-columns:repeat(12,minmax(0,1fr));gap:0;border-top:1px solid var(--border)}
.calc-card{grid-column:span 4;min-height:0;padding:24px;border:0;border-bottom:1px solid var(--border);border-radius:0;background:transparent;box-shadow:none}
.home .calculator-grid .calc-card{grid-column:span 4;min-height:220px;padding:28px 24px}
.home .calculator-grid .calc-card:first-child{grid-column:span 6;padding-left:0}
.home .calculator-grid .calc-card:nth-child(2),.home .calculator-grid .calc-card:nth-child(3){grid-column:span 3}
.calc-card:before{height:0}
.calc-card:hover{background:var(--surface);color:var(--text);box-shadow:none;transform:none}
.calc-card .meta{margin-bottom:8px}
.calc-card .trust-grid{margin:0 0 14px}
.trust-section{padding:clamp(72px,9vw,124px) 0;background:var(--surface-alt);color:var(--text);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.trust-section h2,.trust-section h3{color:var(--ink-950)}
.trust-section .section-head p,.trust-section p{color:var(--muted)}
.review-grid{grid-template-columns:1fr;border-top:1px solid var(--border)}
.trust-card{display:grid;grid-template-columns:180px minmax(220px,.75fr) minmax(0,1fr);gap:28px;align-items:center;padding:24px 0;border:0;border-bottom:1px solid var(--border);border-radius:0;background:transparent}
.trust-card .num{display:block;margin:0;color:var(--cyan-dark);font:700 .72rem/1 var(--mono)}
.trust-card h3,.trust-card p{margin:0}
.trust-section .hero-actions{margin-top:34px}
.timeline{border-top:1px solid var(--border)}
.timeline-row{display:grid;grid-template-columns:120px 1fr auto;gap:18px;align-items:center;padding:14px 0;border-bottom:1px solid var(--border)}
.timeline-row time{color:var(--muted);font-size:.75rem}
.usecase-grid{gap:10px}
.usecase-grid a{background:var(--surface);min-height:40px}
.disclaimer,.safety{padding:16px 18px;border-left:3px solid var(--warning);border-radius:0;background:#f6ece3;color:#6c350d;font-size:.88rem}

/* Shelf and calculator page heroes */
.breadcrumbs,.crumbs{margin:24px 0 18px;color:var(--muted);font-size:.78rem;font-weight:650}
.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:7px;margin:0;padding:0;list-style:none}
.breadcrumbs li+li:before{content:"/";margin-right:7px;color:#87989d}
.breadcrumbs a,.crumbs a{color:var(--muted)}
.page-hero{margin-bottom:34px}
.page-hero-card,.calculator-hero{position:relative;overflow:hidden;padding:clamp(44px,7vw,84px) 0;border:0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);border-radius:0;background:transparent;color:var(--text);box-shadow:none}
.page-hero-card:after,.calculator-hero:after{content:"";position:absolute;right:0;top:0;width:18%;height:8px;background:var(--cyan)}
.page-hero h1{position:relative;z-index:1;max-width:980px;color:var(--ink-950);font-size:clamp(3rem,6.6vw,6.6rem);line-height:.92}
.page-hero p{position:relative;z-index:1;max-width:780px;color:var(--muted);font-size:1.02rem}
.page-hero .eyebrow,.page-hero .meta{position:relative;z-index:1;color:var(--muted)}
.page-hero .pillrow,.page-hero .actions,.page-hero .shelf-icon-large{position:relative;z-index:1}
.page-hero .pill,.page-hero .badge{border-color:var(--border);background:var(--surface-alt);color:var(--ink-800)}
.page-hero .btn.secondary{border-color:var(--border-dark);background:transparent;color:var(--ink-900)}
.page-hero .btn.secondary:hover{background:var(--ink-900);color:#fff}
.page-hero-card>.shelf-icon-large{position:absolute;right:24px;top:24px;z-index:1;width:84px;height:84px;margin:0;padding:17px;border:1px solid var(--border);background:var(--surface);opacity:.85}
.page-hero .trust-panel{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin-top:30px;border-top:1px solid var(--border);border-bottom:1px solid var(--border);border-radius:0;background:transparent}
.trust-item{min-width:0;padding:16px 16px 16px 0;background:transparent;border-right:1px solid var(--border)}
.trust-item+ .trust-item{padding-left:16px}
.trust-item:last-child{border-right:0}
.trust-item span{display:block;color:var(--muted);font:700 .64rem/1.3 var(--mono);text-transform:none;letter-spacing:0}
.trust-item strong{display:block;margin-top:5px;color:var(--ink-950);font-size:.8rem;line-height:1.4}

/* Calculator workspace */
.tool{overflow:hidden;margin:0 0 36px;border:1px solid var(--ink-800);border-radius:var(--radius-feature);background:var(--surface);box-shadow:10px 10px 0 var(--surface-alt)}
.tool-head{display:block;padding:28px 32px;border-bottom:1px solid var(--ink-800);background:var(--surface-blue);color:var(--text)}
.tool-head h2{margin:0;color:var(--ink-950);font-size:clamp(1.7rem,3.2vw,2.8rem)}
.tool-head p{max-width:760px;margin:10px 0 0;color:var(--muted);font-size:.9rem}
.tool-body{display:grid;grid-template-columns:minmax(380px,.82fr) minmax(0,1.18fr);align-items:start;background:var(--surface)}
.inputs,.results{min-width:0;padding:clamp(24px,3.2vw,38px)}
.inputs{position:relative;background:var(--surface-alt);border-right:1px solid var(--border)}
.inputs:before,.results:before{display:block;margin-bottom:22px;color:var(--muted);font:700 .68rem/1 var(--mono);letter-spacing:.03em;text-transform:none}
.inputs:before{content:"Inputs"}
.results:before{content:"Result"}
.results{background:var(--surface)}
.results>div>h3,.results>h3{font-size:1rem;letter-spacing:-.015em}
.row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.field{min-width:0;margin-bottom:15px}
.field label,.inputs label{display:block;margin-bottom:6px;color:var(--ink-900);font-size:.78rem;font-weight:800;line-height:1.35}
.field small,.field .help,.helper,.input-help{display:block;margin-top:5px;color:var(--muted);font-size:.72rem;line-height:1.45}
.field input,.field select,.field textarea,.inputs input,.inputs select,.inputs textarea{width:100%;min-height:48px;border:1px solid var(--border-dark);border-radius:var(--radius-control);background:var(--surface);color:var(--text);padding:10px 12px;transition:border-color .15s ease,box-shadow .15s ease,background .15s ease}
.field textarea,.inputs textarea{min-height:110px;resize:vertical}
.field[hidden],[data-date-mode][hidden]{display:none!important}
.field-label{display:block;margin-bottom:6px;color:var(--ink-900);font-size:.78rem;font-weight:800;line-height:1.35}
.action-field .button-row{display:flex;flex-wrap:wrap;gap:8px}
.action-field .meta,.rate-status{display:block;margin-top:7px;color:var(--muted);font-size:.72rem;line-height:1.45}
.rate-status[data-state="current"]{color:#176642}.rate-status[data-state="cached"],.rate-status[data-state="stale"]{color:#875214}
.field input:hover,.field select:hover,.inputs input:hover,.inputs select:hover{border-color:var(--cyan-dark)}
.field input:focus,.field select:focus,.field textarea:focus,.inputs input:focus,.inputs select:focus,.inputs textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(0,140,165,.16);outline:0}
.inputs input[aria-invalid="true"],.inputs select[aria-invalid="true"],.inputs textarea[aria-invalid="true"]{border-color:var(--danger);box-shadow:0 0 0 3px rgba(163,59,59,.1)}
.printbar{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;padding-top:20px;border-top:1px solid var(--border)}
.printbar .primary-action{flex:1 1 170px}
.printbar .secondary{flex:0 1 auto;background:transparent}
.result-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border-top:1px solid var(--border)}
.result-card{display:flex;min-width:0;flex-direction:column;justify-content:space-between;gap:8px;padding:16px 12px;border:0;border-bottom:1px solid var(--border);border-radius:0;background:transparent}
.result-card:nth-child(even){border-left:1px solid var(--border)}
.result-card span{color:var(--muted);font-size:.72rem;font-weight:750;line-height:1.35}
.result-card strong{color:var(--ink-950);font-size:clamp(1rem,2vw,1.45rem);line-height:1.22;overflow-wrap:anywhere}
.result-card:first-child,.primary-result-card{grid-column:1/-1;padding:24px 18px;border-left:4px solid var(--cyan);background:var(--surface-blue)}
.result-card:first-child span,.primary-result-card span{color:var(--muted)}
.result-card:first-child strong,.primary-result-card strong{color:var(--ink-950);font-size:clamp(1.8rem,4vw,3.4rem)}
.result-grid .result-card:last-child:nth-child(even){grid-column:1/-1;border-left:0}
.comparison-wide{padding:28px 32px 34px;border-top:1px solid var(--ink-800);background:var(--surface)}
.comparison-wide>h3{font-size:1.05rem}
.summary,.assumptions-used{margin-top:14px;padding:14px 16px;border-left:3px solid var(--cyan);border-radius:0;background:var(--surface-blue);color:#244047;font-size:.84rem;line-height:1.55}
.warning,.validation-warning{margin-top:10px;padding:12px 14px;border-left:3px solid var(--warning);border-radius:0;background:#f6ece3;color:#6c350d;font-size:.8rem;line-height:1.5}
.validation-warning{border-left-color:var(--danger);background:#f7e8e8;color:#762828}
.tablewrap{max-width:100%;overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius-control);background:var(--surface)}
table{width:100%;border-collapse:collapse;min-width:560px;font-size:.86rem}
th,td{padding:12px 13px;border-bottom:1px solid var(--border);text-align:left}
th{background:var(--surface-alt);color:var(--ink-900);font-family:var(--display);font-size:.73rem;letter-spacing:.01em}
tr:last-child td{border-bottom:0}

/* Long-form and supporting content */
.content-layout,.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:42px;align-items:start;margin-top:44px}
.main-copy{display:grid;min-width:0;gap:0}
.content-layout>.content{display:grid;gap:0;min-width:0;border:0;background:transparent;box-shadow:none}
.content-layout>.content>section,.content-layout>.content>article{margin:0}
.content-card,.quick-card,.formula-card,.example-card,.mistake-card,.faq-card,.source-notes-card,.assumption-card,.intent-card,.reader-value-card,.right-rail-box,.report-box,.diagram-card,.source-map-card{min-width:0;padding:clamp(28px,4vw,46px) 0}
.content-card h2,.quick-card h2,.formula-card h2,.example-card h2,.mistake-card h2,.faq-card h2,.source-notes-card h2,.assumption-card h2,.intent-card h2,.reader-value-card h2{font-size:clamp(1.55rem,3vw,2.65rem)}
.content-card p,.quick-card p,.formula-card p,.example-card p,.mistake-card p,.faq-card p,.source-notes-card p,.assumption-card p,.intent-card p,.reader-value-card p,.content li{max-width:var(--text-max);color:#34464e}
.quick-card{padding-left:24px;border-top:0;border-left:3px solid var(--cyan);background:var(--surface-blue)}
.quick-card:before{content:"Quick answer";display:block;margin-bottom:12px;color:var(--cyan-dark);font:700 .72rem/1 var(--sans)}
.formula-card{padding-left:24px;border-left:3px solid var(--cyan);background:transparent}
.formula-card code,.formula{display:block;max-width:100%;overflow-x:auto;padding:14px;border-radius:var(--radius-control);background:var(--ink-900);color:#d4f2f5;white-space:pre-wrap;word-break:break-word}
.example-card{border-top:3px solid var(--cyan)}
.mistake-card li,.assumption-card li{margin:8px 0}
.mistake-card li::marker{color:var(--cyan)}
.faq-card details{padding:16px 0;border-top:1px solid var(--border)}
.faq-card details:last-child{padding-bottom:0}
.faq-card summary{cursor:pointer;color:var(--ink-900);font-family:var(--display);font-weight:700;line-height:1.4}
.faq-card summary::marker{color:var(--cyan)}
.faq-card details p{margin-bottom:0}
.diagram-card img{width:100%;max-height:360px;object-fit:contain}
.content{min-width:0}
main.wrap>.content,main.wrap.section>.content,.crumbs+.content{max-width:900px;margin:0 auto;padding:clamp(28px,5vw,52px) 0}
.content>h1{font-size:clamp(2.7rem,5.8vw,5.5rem)}
.content>h2{margin-top:1.4em;font-size:clamp(1.6rem,3vw,2.5rem)}
.content p,.content li{max-width:var(--text-max)}
.source-links{max-width:var(--text-max);margin:12px 0 22px;padding:16px 18px;border-left:3px solid var(--cyan);background:var(--surface-blue)}
.source-links p{margin-top:0}.source-links ul{margin-bottom:0}.content ul,.content ol{max-width:var(--text-max)}
.right-rail{display:grid;gap:0;position:sticky;top:94px;border-top:1px solid var(--border)}
.right-rail-box,.report-box,.diagram-card{padding:22px 0;border-bottom:1px solid var(--border)}
.right-rail-box h3,.report-box h3{font-size:1rem}
.right-rail-box p,.right-rail-box li,.report-box p,.report-box li{color:var(--muted);font-size:.78rem}
.toc ul,.related-print-hide ul,#related ul{display:grid;gap:5px;margin:0;padding:0;list-style:none}
.toc a,.related-print-hide a,#related a{display:block;padding:7px 0;color:var(--muted);font-size:.77rem;font-weight:700;text-decoration:none}
.toc a:hover,.related-print-hide a:hover,#related a:hover{color:var(--cyan-dark)}
.related-reason{display:block;margin-top:3px;color:var(--muted);font-size:.7rem;font-weight:500}
#related li+li{border-top:1px solid var(--border);padding-top:6px}
.content-layout .decision-workbench.card{padding:clamp(30px,4vw,46px);border:1px solid var(--border);background:var(--surface-alt);color:var(--text);box-shadow:none}
.content-layout .decision-workbench>h2{margin-bottom:22px;color:var(--ink-950);font-size:clamp(1.7rem,3vw,2.65rem)}
.content-layout .decision-workbench .decision-grid{grid-template-columns:repeat(12,minmax(0,1fr));gap:20px;align-items:start}
.content-layout .decision-workbench .decision-grid>article{grid-column:span 6;min-height:0;padding:22px 0;border:0;border-top:1px solid var(--border);border-radius:0;background:transparent;color:var(--text)}
.content-layout .decision-workbench .decision-grid>article:first-child{grid-column:1/-1}
.content-layout .decision-workbench .decision-grid h3{color:var(--ink-950);font-size:1.12rem}
.content-layout .decision-workbench .decision-grid>article>p{color:var(--muted)}
.content-layout .decision-workbench .source-notes-card{margin-top:18px;background:transparent;color:var(--text)}
.content-layout .decision-workbench .source-notes-card h2{color:var(--ink-950)}
.content-layout .decision-workbench .source-notes-card p,.content-layout .decision-workbench .source-notes-card li{color:var(--muted)}

/* Shelf listings */
body:not(.home) .decision-grid{grid-template-columns:repeat(12,minmax(0,1fr));gap:20px}
body:not(.home) .decision-grid>article{grid-column:span 4;padding:24px 0;border-top:3px solid var(--cyan);background:transparent}
body:not(.home) .decision-grid>article:first-child{grid-column:span 5}
body:not(.home) .decision-grid>article:nth-child(2){grid-column:span 4}
body:not(.home) .decision-grid>article:nth-child(3){grid-column:span 3}
body:not(.home) .calculator-grid{grid-template-columns:repeat(12,minmax(0,1fr));gap:0;border-top:1px solid var(--border)}
body:not(.home) .calculator-grid .calc-card{grid-column:span 4;padding:24px 20px}
body:not(.home) .calculator-grid .calc-card:nth-child(3n+1){padding-left:0}
body:not(.home) .calculator-grid .calc-card:nth-child(3n){padding-right:0}
body:not(.home) .calculator-grid .calc-card:hover{background:var(--surface)}

/* Footer */
.site-footer{margin-top:96px;padding:62px 0 24px;background:var(--surface);color:var(--text);border-top:1px solid var(--border)}
.home .site-footer{margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:48px}
.site-footer .brand{color:var(--ink-950)}
.site-footer p,.site-footer li{color:var(--muted);font-size:.82rem}
.site-footer h3{margin:3px 0 14px;color:var(--ink-900);font-family:var(--sans);font-size:.7rem;letter-spacing:0;text-transform:none}
.site-footer ul{margin:0;padding:0;list-style:none}.site-footer li{margin:7px 0}
.site-footer a{color:var(--muted);text-decoration:none}.site-footer a:hover{color:var(--cyan-dark)}
.site-footer .btn.secondary{border-color:var(--border-dark);color:var(--ink-900)}
.site-footer .btn.secondary:hover{background:var(--ink-900);color:#fff}
.footer-note{margin-top:40px;padding-top:20px;border-top:1px solid var(--border);color:var(--muted);font-size:.7rem}

/* Search dialog */
.search-modal{position:fixed;z-index:120;inset:0;display:grid;place-items:start center;overflow-y:auto;padding:7vh 20px;background:rgba(8,17,23,.72);backdrop-filter:blur(8px)}
.search-panel{width:min(900px,100%);max-height:86vh;overflow:hidden;border:1px solid var(--border-dark);border-radius:var(--radius-feature);background:var(--surface);box-shadow:var(--shadow-lg)}
.search-head{display:flex;gap:10px;padding:18px;border-bottom:1px solid var(--border);background:var(--surface-alt)}
.search-head .searchbox{flex:1;min-height:54px;border:1px solid var(--border-dark);padding-inline:14px}
.search-panel .filterbar{margin:0!important;padding:14px 18px!important;border-top:0!important;border-bottom:1px solid var(--border)!important}
.search-panel .search-meta{min-height:38px;margin:0;padding:8px 18px;border-bottom:1px solid var(--border)}
.search-results{display:grid;gap:0;max-height:58vh;overflow:auto;background:var(--surface)}
.search-result{display:grid;grid-template-columns:1fr auto;gap:7px 16px;padding:17px 20px;border-bottom:1px solid var(--border);background:var(--surface);color:var(--text);text-decoration:none}
.search-result strong,.search-result>.meta{grid-column:1/-1}.search-result:hover,.search-result.active{background:var(--surface-blue);color:var(--text);text-decoration:none}.search-result strong{font-family:var(--display)}
.toast{position:fixed;z-index:160;left:50%;bottom:24px;transform:translateX(-50%);max-width:min(440px,calc(100% - 32px));padding:12px 16px;border:1px solid var(--border-dark);border-radius:var(--radius-control);background:var(--ink-900);color:#fff;box-shadow:var(--shadow-lg);font-size:.84rem;font-weight:750}

/* Trust and editorial pages */
.app-shell{min-height:100vh;display:block;background:var(--paper)}
.sidebar{position:sticky;top:0;z-index:70;height:auto;display:flex;align-items:center;gap:36px;padding:14px max(32px,calc((100% - var(--max))/2));background:var(--surface);color:var(--text);border-bottom:1px solid var(--border)}
.sidebar-brand{display:flex;align-items:center;gap:10px;color:var(--ink-950);font-family:var(--display);font-weight:700;white-space:nowrap}.sidebar-brand img{width:34px;height:34px}.sidebar-brand span span{color:var(--cyan-dark)}
.sidebar-nav{display:flex;align-items:center;gap:4px;margin:0 0 0 auto}.sidebar-section-label{display:none}
.sidebar-link{display:flex;align-items:center;gap:8px;padding:9px 10px;border-radius:var(--radius-control);color:var(--muted);text-decoration:none;font-size:.8rem;font-weight:700}
.sidebar-link .dot{display:none}.sidebar-link:hover,.sidebar-link.active{background:var(--surface-blue);color:var(--ink-950);text-decoration:none}
.main-area{min-width:0}.topbar{display:flex;align-items:center;min-height:58px;padding:0 max(32px,calc((100% - var(--max))/2));border-bottom:1px solid var(--border);background:var(--paper)}
.topbar-breadcrumb{display:flex;gap:9px;color:var(--muted);font-size:.78rem;font-weight:700}.topbar-breadcrumb a{color:var(--muted)}.topbar-breadcrumb .sep{color:#8b9a9e}
.hero-banner{padding:clamp(58px,8vw,112px) max(32px,calc((100% - var(--max))/2));background:var(--surface);color:var(--text);border-bottom:1px solid var(--border)}
.hero-banner h1{max-width:1040px;color:var(--ink-950);font-size:clamp(3rem,7vw,7rem)}.hero-banner p{max-width:780px;color:var(--muted);font-size:1.05rem}.hero-banner .eyebrow{color:var(--muted)}
.content-main{display:grid;gap:0;max-width:900px;margin-inline:auto;padding:clamp(38px,6vw,78px) 32px}.content-main .content-card{padding-block:34px}.source-map-card{overflow:hidden}

/* Miscellaneous shell */
.hero-banner+.content-main{}.app-shell .content-card:first-child{border-top:0}

@media(max-width:1160px){
  .navlinks,.methodology-link{display:none}.menu-btn{display:inline-flex}.nav-actions{margin-left:auto}
  .hero-grid{grid-template-columns:minmax(0,.8fr) minmax(420px,1.2fr);gap:48px}
  .page-hero .trust-panel{grid-template-columns:repeat(2,minmax(0,1fr))}.trust-item:nth-child(2){border-right:0}.trust-item:nth-child(n+3){border-top:1px solid var(--border)}
  body:not(.home) .calculator-grid .calc-card{grid-column:span 6}body:not(.home) .calculator-grid .calc-card:nth-child(n){padding-inline:20px}body:not(.home) .calculator-grid .calc-card:nth-child(odd){padding-left:0}body:not(.home) .calculator-grid .calc-card:nth-child(even){padding-right:0}
}
@media(max-width:900px){
  .wrap{width:min(100% - 40px,var(--max))}
  .hero-grid{grid-template-columns:minmax(0,1fr);min-height:0}.hero-card{width:min(760px,94%);margin:8px 0 12px auto}
  .home .decision-grid{grid-template-columns:1fr}.shelf-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.home .shelf-grid .shelf-card:nth-child(n){grid-column:auto}.home .shelf-grid .shelf-card:nth-child(2) .shelf-photo,.home .shelf-grid .shelf-card:nth-child(7) .shelf-photo{height:170px}
  .home .calculator-grid .calc-card:first-child{grid-column:span 12}.home .calculator-grid .calc-card:nth-child(2),.home .calculator-grid .calc-card:nth-child(3){grid-column:span 6}
  .recent-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.recent-card:nth-child(2n){border-right:0}.recent-card:nth-child(n){padding-left:18px}.recent-card:nth-child(odd){padding-left:0}
  .trust-card{grid-template-columns:120px minmax(180px,.8fr) 1fr}
  .tool-body{grid-template-columns:1fr}.inputs{border-right:0;border-bottom:1px solid var(--border)}
  .content-layout,.content-grid{grid-template-columns:1fr}.right-rail{position:static;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:24px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sidebar{position:static;flex-wrap:wrap;gap:12px;padding:14px 20px}.sidebar-nav{width:100%;overflow-x:auto;margin:0}.sidebar-link{white-space:nowrap}.topbar{padding-inline:20px}.hero-banner{padding-inline:20px}
}
@media(max-width:720px){
  html{scroll-padding-top:72px}.wrap{width:min(100% - 28px,var(--max))}.nav{min-height:64px;gap:12px}.brand img{width:34px;height:34px}.brand{font-size:.95rem}.search-open{padding:8px 10px}.search-open kbd{display:none}
  .mobile-menu.open{position:relative;top:auto;grid-template-columns:repeat(2,minmax(0,1fr));padding:1px 14px}
  .hero{padding:44px 0 58px}.hero-grid{gap:40px}.hero h1{font-size:clamp(3.1rem,15vw,4.9rem)}.hero p{font-size:1rem}.hero-card{width:100%;box-shadow:8px 8px 0 var(--surface-blue)}.hero-proof{margin-top:28px}
  .hero-actions{display:grid;grid-template-columns:1fr 1fr}.hero-actions .btn{width:100%}
  .suggestions a,.filterbar button,.usecase-grid a{min-height:42px}.search-module{padding:50px 0}.calc-list{grid-template-columns:1fr}.recent-grid{grid-template-columns:1fr}.recent-card:nth-child(n){padding:18px 0;border-right:0}.recent-head{align-items:start}.recent-section{padding:34px 0}
  .section{padding:76px 0}.home .decision-workbench,.trust-section{padding:76px 0}.home .decision-grid article{grid-template-columns:1fr}.home .decision-grid p{grid-column:1}.home .decision-grid a{grid-column:1;grid-row:auto;justify-self:start;margin-top:8px}
  .shelf-grid,.calculator-grid,.popular-grid,.grid,.grid2,.grid4,.review-grid,.status-grid{grid-template-columns:1fr}.shelf-card{min-height:0}.home .shelf-grid .shelf-card:nth-child(n){grid-column:auto}.shelf-card .shelf-photo{height:190px}
  .home .calculator-grid .calc-card:first-child,.home .calculator-grid .calc-card:nth-child(2),.home .calculator-grid .calc-card:nth-child(3){grid-column:1;padding-inline:0}
  .trust-card{grid-template-columns:1fr;gap:10px}.trust-card .num{margin-bottom:6px}
  .page-hero-card,.calculator-hero{padding:42px 0}.page-hero h1{font-size:clamp(2.8rem,13vw,4.2rem)}.page-hero .trust-panel{grid-template-columns:1fr}.trust-item,.trust-item+ .trust-item{padding:13px 0;border-right:0;border-top:1px solid var(--border)}.trust-item:first-child{border-top:0}.page-hero-card>.shelf-icon-large{right:0;top:18px;width:64px;height:64px;padding:12px;opacity:.16}
  body:not(.home) .decision-grid{grid-template-columns:1fr;gap:0}body:not(.home) .decision-grid>article:nth-child(n){grid-column:1;padding:22px 0}
  body:not(.home) .calculator-grid{grid-template-columns:1fr}body:not(.home) .calculator-grid .calc-card:nth-child(n){grid-column:1;padding-inline:0}
  .tool{box-shadow:6px 6px 0 var(--surface-alt)}.tool-head{padding:24px 20px}.inputs,.results{padding:22px 20px}.row,.result-grid{grid-template-columns:1fr}.result-card:nth-child(even){border-left:0}.result-card:first-child,.primary-result-card{grid-column:auto}.printbar{display:grid}.printbar button,.printbar .btn{width:100%}.comparison-wide{padding:24px 20px}
  .content-layout{margin-top:30px}.content-card,.quick-card,.formula-card,.example-card,.mistake-card,.faq-card,.source-notes-card,.assumption-card,.intent-card,.reader-value-card{padding-block:32px}.quick-card,.formula-card{padding-left:18px}.right-rail{grid-template-columns:1fr}.content-layout .decision-workbench.card{padding:24px 20px}.content-layout .decision-workbench .decision-grid{grid-template-columns:1fr}.content-layout .decision-workbench .decision-grid>article:first-child,.content-layout .decision-workbench .decision-grid>article{grid-column:1}
  .ram-example-table{display:block;min-width:0}.ram-example-table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.ram-example-table tbody{display:grid;gap:10px;padding:10px}.ram-example-table tr{display:grid;grid-template-columns:1fr 1fr;gap:8px 12px;padding:12px;border:1px solid var(--border);background:var(--surface)}.ram-example-table td{display:block;padding:0;border:0}.ram-example-table td:before{content:attr(data-label);display:block;margin-bottom:3px;color:var(--muted);font:700 .66rem/1.25 var(--mono)}.ram-example-table td[data-label="What it shows"]{grid-column:1/-1;padding-top:6px;border-top:1px solid var(--border)}
  .timeline-row{grid-template-columns:1fr;gap:4px}.footer-grid{grid-template-columns:1fr;gap:30px}.site-footer{margin-top:68px;padding-top:48px}.home .site-footer{margin-top:0}.site-footer li{margin:0}.site-footer li a{display:flex;align-items:center;min-height:38px}
  .search-modal{padding:0}.search-panel{min-height:100vh;max-height:none;border:0;border-radius:0}.search-head{position:sticky;top:0;z-index:2}.search-head .btn{padding-inline:12px}.search-results{max-height:none}
  .content-main{padding-inline:20px}.hero-banner h1{font-size:clamp(2.8rem,13vw,4.2rem)}
}
@media(max-width:430px){
  .wrap{width:min(100% - 24px,var(--max))}.brand span{display:none}.nav-actions{gap:6px}.search-open,.menu-btn{min-height:42px;font-size:.78rem}
  .mobile-menu.open{grid-template-columns:1fr;max-height:calc(100vh - 64px);overflow:auto}
  .hero h1{font-size:3.25rem}.hero-actions{grid-template-columns:1fr}.hero-card:before{width:52px;height:5px}.hero-proof{grid-template-columns:1fr}.hero-proof li{padding:10px 0}.hero-proof li+li{padding-left:0;border-top:1px solid var(--border);border-left:0}
  .search-module h2{font-size:2rem}.suggestions a:nth-of-type(n+5){display:none}.filterbar{flex-wrap:wrap;overflow:visible;padding-bottom:0}.calc-link{grid-template-columns:1fr}.calc-link .tag,.calc-link>.meta:last-child{grid-column:1}.search-meta{align-items:flex-start}.recent-head{display:grid}.recent-head .clear-search{justify-self:start}
  h2{font-size:2.25rem}.section-head{margin-bottom:30px}.page-hero h1{font-size:3.05rem}.content>h1{font-size:3rem}
  .sidebar{padding:12px}.sidebar-brand{width:max-content}.sidebar-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));overflow:visible}.sidebar-link{justify-content:center;min-height:42px;text-align:center;font-size:.72rem}.hero-banner,.topbar{padding-inline:12px}.content-main{padding-inline:14px}
}

@media(prefers-color-scheme:dark){
  :root{--ink-950:#edf4f3;--ink-900:#e5efed;--ink-800:#c6d6d8;--ink-700:#a5b9bd;--paper:#0d151a;--surface:#111b21;--surface-alt:#17242a;--surface-blue:#153039;--text:#e4eeee;--muted:#a9bcc0;--muted-light:#71868c;--border:#33464b;--border-dark:#60777d;--cyan:#43bed2;--cyan-dark:#63ccdc;--orange:#43bed2;--orange-dark:#63ccdc;--orange-bright:#43bed2;--shadow-sm:0 8px 24px rgba(0,0,0,.2);--shadow-md:0 18px 46px rgba(0,0,0,.28);--shadow-lg:0 28px 72px rgba(0,0,0,.36)}
  a:hover{color:var(--ink-950)}.site-header{background:rgba(17,27,33,.96)}
  .search-open,.menu-btn{background:var(--cyan);border-color:var(--cyan);color:#061116}.search-open:hover,.menu-btn:hover{background:var(--ink-950);border-color:var(--ink-950);color:#0d151a}
  .btn,.btn.primary,.primary-action{background:var(--cyan);border-color:var(--cyan);color:#061116}.btn:hover{background:var(--ink-950);border-color:var(--ink-950);color:#0d151a}.btn.secondary,.btn.ghost,.page-hero .btn.secondary,.site-footer .btn.secondary{color:var(--ink-950)}.btn.secondary:hover,.btn.ghost:hover,.page-hero .btn.secondary:hover,.site-footer .btn.secondary:hover{background:var(--ink-950);color:#0d151a}
  .status-index{border-color:#34796f;background:#143d37;color:#aee8dd}.status-review{border-color:#765835;background:#352717;color:#f0c99f}.status-safety{border-color:#784d4d;background:#351f1f;color:#efb7b7}
  .hero-card .hero-photo{filter:brightness(.75) saturate(.62) contrast(1.08)}
  .summary,.assumptions-used,.quick-card{color:#c9dcdf}.warning,.validation-warning,.disclaimer,.safety{background:#34251a;color:#efc49e}.validation-warning{background:#351f1f;color:#efb7b7}
  .content-card p,.quick-card p,.formula-card p,.example-card p,.mistake-card p,.faq-card p,.source-notes-card p,.assumption-card p,.intent-card p,.reader-value-card p,.content li{color:var(--muted)}
  .formula-card code,.formula{background:#071015;color:#c9eef2}.toast{background:#e5efed;color:#0d151a}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}.hero-card,.calc-card:hover,.shelf-card:hover,.calc-link:hover{transform:none}}
@media(prefers-reduced-motion:no-preference){.hero-grid>div:first-child{animation:hero-enter .55s cubic-bezier(.16,1,.3,1) both}.hero-card{animation:hero-enter .6s .08s cubic-bezier(.16,1,.3,1) both}@keyframes hero-enter{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}}
@media print{
  @page{margin:14mm}body{background:#fff;color:#000;font-size:11pt}.site-header,.site-footer,.search-modal,.mobile-menu,.hero-actions,.printbar,.related-print-hide,.right-rail,.diagram-card{display:none!important}.wrap,.calculator-shell{width:100%;max-width:none}.breadcrumbs{margin-top:0}.page-hero-card,.calculator-hero,.tool,.content-card,.quick-card,.formula-card,.example-card,.mistake-card,.faq-card,.source-notes-card,.assumption-card,.intent-card,.reader-value-card{break-inside:avoid;box-shadow:none}.page-hero-card,.calculator-hero,.tool-head{background:#fff!important;color:#000!important;border:1px solid #777}.page-hero h1,.tool-head h2{color:#000}.page-hero p,.tool-head p,.page-hero .meta{color:#333}.tool-body,.content-layout{display:block}.inputs{border:0;border-bottom:1px solid #999}.results{padding-top:20px}.result-card:first-child,.primary-result-card{background:#eee}.result-card:first-child strong,.primary-result-card strong{color:#000}.content-layout>.content{display:block}.content-layout>.content>*{margin-bottom:12px}.formula-card code,.formula{background:#eee;color:#000}.app-shell{display:block}.sidebar,.topbar{display:none}.hero-banner{background:#fff;color:#000;padding:20px}.hero-banner h1{color:#000}.content-main{max-width:none;padding:20px}}