/* Menrva design refresh. No external runtime, fonts or icon requests. */
:root{--bg:#f6f8fc;--card:#fff;--text:#17243b;--muted:#64748b;--line:#e4eaf3;--accent:#2563eb;--accent-2:#edf3ff;--soft:#eef2f8;--radius:18px;--max:1160px;--nav-bg:rgba(255,255,255,.92);--shadow:0 8px 28px rgba(23,44,84,.045);--blue:#2563eb;--blue-bg:#edf3ff;--teal:#087e71;--teal-bg:#e9f8f3;--violet:#7950c5;--violet-bg:#f3edfc;--amber:#a15f09;--amber-bg:#fff5e5}
html[data-theme=dark]{color-scheme:dark;--bg:#101827;--card:#182235;--text:#e7edf7;--muted:#a4b2c9;--line:#2a3850;--accent:#8bb4ff;--accent-2:#22375a;--soft:#1e2b40;--nav-bg:rgba(16,24,39,.94);--shadow:0 8px 28px rgba(0,0,0,.12);--blue:#93b9ff;--blue-bg:#21385b;--teal:#72d6bd;--teal-bg:#173e3d;--violet:#c5a6ff;--violet-bg:#332b50;--amber:#f4ca89;--amber-bg:#443420}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{background:var(--bg);color:var(--text);line-height:1.8;letter-spacing:-.025em;overflow-wrap:break-word}
button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}
a:hover{text-decoration:none}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
[hidden]{display:none!important}svg.icon{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.wrap{padding:0 24px;max-width:var(--max)}
.skip-link{position:fixed;top:-80px;left:20px;background:var(--card);padding:12px 20px;z-index:100;color:var(--text);border:2px solid var(--accent);border-radius:8px}.skip-link:focus{top:12px}
header.site{background:var(--nav-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
header.site .wrap{height:76px;gap:24px}.logo{display:inline-flex;align-items:center;gap:10px;font-size:24px;letter-spacing:-1px;line-height:1;flex-shrink:0}.logo .brand-mark{display:grid;place-items:center;background:#2563eb;color:white;width:33px;height:33px;border-radius:10px;font-size:18px;font-weight:800;letter-spacing:-2px;padding-right:2px}.logo .brand-dot{color:var(--accent)}
.header-actions{display:flex;align-items:center;gap:30px}nav.main{display:flex;align-items:center;gap:28px}nav.main a{margin:0;color:var(--muted);font-size:14px;font-weight:600;white-space:nowrap}nav.main a[aria-current=page]{color:var(--accent)}
.theme-toggle{border:1px solid var(--line);background:var(--card);color:var(--muted);width:38px;height:38px;border-radius:11px;cursor:pointer;display:grid;place-items:center}.theme-toggle:hover{color:var(--accent);background:var(--accent-2)}.theme-toggle .icon{width:18px;height:18px}.icon-sun{display:none!important}html[data-theme=dark] .icon-moon{display:none!important}html[data-theme=dark] .icon-sun{display:block!important}
main{padding:38px 0 70px}.home-page main{padding-top:0}.hero-new{text-align:center;padding:68px 0 46px;position:relative}.hero-new:before{content:'';position:absolute;pointer-events:none;inset:0;background:radial-gradient(ellipse at 50% 0,var(--accent-2),transparent 67%);z-index:-1}.eyebrow{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:600;color:var(--accent);background:var(--accent-2);border:1px solid color-mix(in srgb,var(--accent) 12%,transparent);border-radius:30px;padding:5px 12px;margin:0 0 18px}.eyebrow .icon{width:14px;height:14px}.hero-new h1{font-size:46px;letter-spacing:-2.5px;line-height:1.3;margin:0 0 16px;font-weight:800}.hero-new h1 em{font-style:normal;color:var(--accent)}.hero-new .hero-description{font-size:15px;color:var(--muted);line-height:1.85;margin:0 auto;max-width:550px}.hero-stats{margin:15px 0 0;display:flex;justify-content:center;gap:17px;align-items:center;font-size:12px;color:var(--muted)}.hero-stats b{font-weight:700;color:var(--text)}.stat-divider{width:3px;height:3px;border-radius:50%;background:var(--muted);opacity:.5}
.search-shell{display:flex;gap:12px;align-items:center;border:1px solid var(--line);background:var(--card);border-radius:15px;max-width:620px;margin:29px auto 0;padding:0 18px;box-shadow:var(--shadow);text-align:left}.search-shell:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-2)}.search-shell>.icon{color:var(--accent);width:20px;height:20px}.search-shell input{min-width:0;flex:1;border:0;background:none;color:var(--text);padding:18px 0;font-size:14px;outline:none!important;letter-spacing:-.02em}.search-shell input::placeholder{color:var(--muted);opacity:.95}.search-shell kbd{border:1px solid var(--line);color:var(--muted);font:12px inherit;padding:0 7px;border-radius:5px}.quick-links{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:7px 14px;margin-top:14px;font-size:12px;color:var(--muted)}.quick-links a{color:var(--muted);text-underline-offset:4px}.quick-links a:hover{color:var(--accent);text-decoration:underline}.quick-label{font-weight:600;color:var(--text)}
.section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 0 20px}.section-heading h2{display:flex;align-items:center;gap:9px;border:0;padding:0;margin:0;font-size:22px;letter-spacing:-.8px}.section-heading p{margin:3px 0 0;color:var(--muted);font-size:13px}.section-heading .text-link{color:var(--muted);font-size:13px;display:inline-flex;align-items:center;gap:6px;flex-shrink:0}.text-link .icon{width:15px;height:15px}.section-heading .count{font-size:13px;font-weight:500;color:var(--muted);letter-spacing:0}.catalog-section{padding-top:7px}.catalog-toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:22px}.filter-button{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);background:var(--card);color:var(--muted);border-radius:9px;padding:8px 13px;font-size:13px;cursor:pointer;line-height:1.5;white-space:nowrap}.filter-button span{font-size:11px;opacity:.8}.filter-button:hover{border-color:var(--accent);color:var(--accent)}.filter-button[aria-pressed=true]{background:var(--text);color:var(--card);border-color:var(--text)}
.tool-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}.tool-card{display:flex;flex-direction:column;align-items:flex-start;text-align:left;position:relative;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:23px 18px 20px;color:var(--text);transition:transform .18s,border-color .18s,box-shadow .18s;min-width:0;min-height:196px}.tool-card:hover{transform:translateY(-4px);border-color:var(--tint);box-shadow:var(--shadow)}.tone-blue{--tint:var(--blue);--tint-bg:var(--blue-bg)}.tone-teal{--tint:var(--teal);--tint-bg:var(--teal-bg)}.tone-violet{--tint:var(--violet);--tint-bg:var(--violet-bg)}.tone-amber{--tint:var(--amber);--tint-bg:var(--amber-bg)}.tool-icon{display:grid;place-items:center;width:43px;height:43px;border-radius:13px;background:var(--tint-bg);color:var(--tint);margin-bottom:17px}.tool-icon .icon{width:23px;height:23px}.tool-category{color:var(--tint);font-size:10px;font-weight:600;line-height:1.5;margin-bottom:5px}.tool-card h3{margin:0 0 7px;font-size:14px;font-weight:700;letter-spacing:-.5px;line-height:1.5}.tool-card p{font-size:11.5px;color:var(--muted);line-height:1.7;margin:0;word-break:keep-all;overflow-wrap:anywhere}.tool-arrow{position:absolute;top:18px;right:16px;color:var(--muted);opacity:.45}.tool-arrow .icon{width:15px;height:15px}.tool-card:hover .tool-arrow{color:var(--tint);opacity:1}
.empty-state{padding:48px 24px;text-align:center;border:1px dashed var(--line);border-radius:18px;color:var(--muted);background:var(--card)}.empty-state strong{display:block;color:var(--text);font-size:18px;margin-bottom:7px}.empty-state p{font-size:14px}.reset-search{border:0;background:var(--accent-2);color:var(--accent);padding:9px 16px;font-size:13px;border-radius:8px;cursor:pointer}.filter-status{font-size:12px;color:var(--muted);margin-top:13px;min-height:22px}.filter-status:empty{display:none}
.trust-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:24px 0;margin-top:26px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.trust-item{display:flex;align-items:center;justify-content:center;gap:10px}.trust-item>.icon{width:20px;height:20px;color:var(--muted)}.trust-item b{display:block;font-size:12px;font-weight:600}.trust-item small{display:block;color:var(--muted);font-size:11px}
.guides-section{margin-top:56px}.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.guide-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:23px;color:var(--text);transition:border-color .18s,transform .18s}.guide-card:hover{border-color:var(--tint);transform:translateY(-3px)}.guide-card-top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:13px}.category-label{display:inline-flex;gap:5px;align-items:center;color:var(--tint);background:var(--tint-bg);border-radius:6px;padding:3px 8px;font-size:10px;font-weight:600}.category-label .icon{width:12px;height:12px}.guide-card time{font-size:10px;color:var(--muted)}.guide-card h3{font-size:15px;line-height:1.7;margin:0 0 11px;letter-spacing:-.45px}.guide-card p{font-size:12px;color:var(--muted);line-height:1.85;margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.guide-read{color:var(--muted);font-size:11px;display:flex;align-items:center;gap:6px;margin-top:auto}.guide-read .icon{width:13px;height:13px}
.about-band{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;margin-top:56px;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:36px 40px}.about-band h2{font-size:25px;line-height:1.6;letter-spacing:-1px;margin:8px 0 14px;padding:0;border:0}.about-band p{font-size:13px;line-height:1.9;color:var(--muted);margin-bottom:18px}.about-kicker{font-size:11px;color:var(--accent);font-weight:700;letter-spacing:1.5px}.about-band .text-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600}.principles{display:grid;gap:19px;margin:0;padding:0;list-style:none}.principles li{display:flex;align-items:flex-start;gap:13px;margin:0}.principles .principle-icon{padding:10px;background:var(--soft);color:var(--muted);border-radius:11px;line-height:0}.principles .icon{width:19px;height:19px}.principles b{font-size:13px}.principles p{font-size:12px;line-height:1.8;margin:3px 0 0}
.faq-section{max-width:800px;margin:56px auto 0}.faq-section>.section-heading{margin-bottom:14px}.faq-item{border-bottom:1px solid var(--line)}.faq-item summary{list-style:none;cursor:pointer;display:flex;gap:12px;justify-content:space-between;align-items:center;padding:20px 0;font-size:14px;font-weight:600}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:'+';font-size:20px;font-weight:400;color:var(--muted);line-height:1}.faq-item[open] summary:after{content:'−'}.faq-item>p{padding:0 28px 19px 0;margin:0;font-size:13px;color:var(--muted);line-height:1.95}.faq-question{display:flex;gap:12px}.faq-q{color:var(--accent);font-weight:700;font-size:12px;padding-top:2px}
footer.site{background:var(--card);border-top:1px solid var(--line);padding:36px 0 26px}.footer-top{display:flex;justify-content:space-between;gap:30px;align-items:flex-start;width:100%;padding-bottom:25px}.footer-brand .logo{font-size:20px}.footer-brand p{margin:13px 0 0;font-size:12px;color:var(--muted)}.footer-links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:7px 19px;max-width:460px}.footer-links a{color:var(--muted);font-size:12px;margin:0}.footer-bottom{width:100%;display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);padding-top:19px;color:var(--muted);font-size:10px}.footer-bottom p{margin:0}.back-top{position:fixed;right:24px;bottom:24px;display:grid;place-items:center;border:1px solid var(--line);background:var(--card);color:var(--muted);width:42px;height:42px;border-radius:12px;box-shadow:var(--shadow);cursor:pointer;z-index:30}.back-top .icon{width:18px;height:18px}
/* Existing calculators and editorial pages share the same design language. */
.tile{background:var(--card);color:var(--text);border-color:var(--line)}.tile:hover{border-color:var(--accent)}.result tr[style*="background"]{background:var(--accent-2)!important}
.layout{grid-template-columns:minmax(0,1fr) 268px;gap:26px}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:29px;box-shadow:none}.card h1{font-size:28px;line-height:1.5;letter-spacing:-1px}.card h2{border:0;padding-left:0;font-size:21px;margin-top:34px;line-height:1.6}.card h3{line-height:1.7}.card p,.card li{line-height:1.95}.lead{font-size:15px;color:var(--muted)}.meta{font-size:11px;padding-bottom:20px;border-bottom:1px solid var(--line);line-height:1.9}.crumb{font-size:12px;margin-bottom:18px}.crumb a:hover{color:var(--accent)}.calc{background:var(--soft);border:1px solid var(--line);padding:23px;border-radius:14px;gap:18px;margin-top:24px}.field label{font-size:13px}.field small{font-size:11px;line-height:1.75}.field input,.field select{background:var(--card);border:1px solid var(--line);color:var(--text);border-radius:9px;padding:12px;font-size:15px}.field input:focus,.field select:focus{outline:0;box-shadow:0 0 0 3px var(--accent-2);border-color:var(--accent)}.btn{border-radius:9px;background:#2563eb;color:#fff;padding:13px 20px;line-height:1.6;font-size:15px}.btn.ghost{background:var(--card);border-color:var(--line);color:var(--text)}.radio label{position:relative;background:var(--card);border-color:var(--line);border-radius:9px;font-size:13px;padding:8px 15px}.radio input{display:block;position:absolute;opacity:0;width:1px;height:1px}.radio label:focus-within{outline:2px solid var(--accent);outline-offset:3px}.result{border:1px solid var(--line);background:var(--card);padding:22px;border-radius:12px;margin-top:2px;overflow-wrap:anywhere}.result .big{font-size:29px;line-height:1.6}.result .big small{font-size:12px}.kv{gap:9px 12px;font-size:13px}.kv .sub{font-size:12px}.note{font-size:11px;line-height:1.85!important;margin:0}.toc{background:var(--soft);border:1px solid var(--line);padding:20px;border-radius:12px;font-size:13px}.toc a{padding:4px 0}.example{background:var(--accent-2);border:1px solid var(--line);padding:20px}.callout{background:var(--amber-bg);color:var(--text);border-color:color-mix(in srgb,var(--amber) 25%,transparent);font-size:14px}.disclaimer{background:var(--soft);color:var(--muted);font-size:12px}.table-wrap{border:1px solid var(--line);border-radius:10px;overflow-x:auto;max-width:100%;margin:16px 0 22px}.table-wrap table{margin:0;border-style:hidden}table{background:var(--card);color:var(--text);font-size:13px}th{background:var(--soft)}th,td{border-color:var(--line);padding:11px 12px}aside .card{padding:21px}aside .card h4{font-size:13px}aside .card a{color:var(--muted)}aside .card a:hover{color:var(--accent)}aside li{font-size:12px;padding:10px 0;line-height:1.7!important}aside li:last-child{padding-bottom:0}.posts a{font-size:15px}.posts p{font-size:13px}.tag{color:var(--accent);background:var(--accent-2);font-size:11px}.article-page article>h1{font-size:29px;line-height:1.55}.article-page article>.lead{font-size:13px;background:var(--accent-2);padding:14px 17px;border-radius:10px}.catalog-page main{padding-top:0}.catalog-page .hero-new{padding-top:48px;padding-bottom:34px}.catalog-page .hero-new h1{font-size:36px}.guides-page .guide-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.guides-page .guide-card{min-height:240px}.standalone-page main>.wrap>.card{max-width:850px;margin:auto}.ad-slot:empty{margin:0}.home-page .ad-slot{margin:0}.error-page{text-align:center;padding:90px 24px}.error-page h1{font-size:38px}.error-page p{color:var(--muted)}
@media(max-width:1100px){.tool-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.tool-card{padding:22px 17px}.guide-grid,.guides-page .guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:900px){.layout{grid-template-columns:minmax(0,1fr)}.layout>aside{display:none}.hero-new h1{font-size:41px}.about-band{padding:30px;gap:28px}.tool-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.tool-card:last-child{grid-column:auto}.trust-item small{font-size:10px}.footer-links{max-width:360px}}
@media(max-width:640px){.wrap{padding:0 18px}header.site .wrap{height:66px;gap:12px}.logo{font-size:21px;gap:7px}.logo .brand-mark{width:28px;height:28px;border-radius:8px;font-size:16px}.header-actions{gap:14px}nav.main{gap:17px}nav.main a{font-size:12px}.theme-toggle{width:33px;height:33px;border-radius:9px}.theme-toggle .icon{width:16px;height:16px}.hero-new{padding:42px 0 34px}.hero-new h1{font-size:34px;letter-spacing:-1.8px}.hero-new .hero-description{font-size:13px;padding:0 10px}.hero-stats{font-size:11px;gap:12px}.eyebrow{font-size:10px;padding:4px 10px;margin-bottom:17px}.search-shell{margin-top:23px;border-radius:12px;padding:0 14px;gap:9px}.search-shell input{padding:15px 0;font-size:12px}.search-shell kbd{display:none}.search-shell>.icon{width:18px;height:18px}.quick-links{gap:6px 11px;font-size:10px;margin-top:12px}.section-heading h2{font-size:19px;letter-spacing:-.6px}.section-heading p{font-size:11px}.section-heading .text-link{font-size:11px}.section-heading{gap:10px;margin-bottom:17px}.catalog-toolbar{gap:6px;margin-bottom:17px}.filter-button{padding:7px 10px;font-size:11px;border-radius:7px;gap:5px}.filter-button span{font-size:10px}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.tool-card{padding:19px 15px 17px;border-radius:13px;min-height:181px}.tool-icon{width:37px;height:37px;border-radius:11px;margin-bottom:13px}.tool-icon .icon{width:21px;height:21px}.tool-category{font-size:9px}.tool-card h3{font-size:13px;line-height:1.6;margin-bottom:5px}.tool-card p{font-size:10.5px}.tool-arrow{top:15px;right:12px}.tool-arrow .icon{width:13px;height:13px}.trust-strip{gap:10px;padding:19px 0;margin-top:23px}.trust-item{flex-direction:column;text-align:center;gap:7px}.trust-item b{font-size:10px}.trust-item small{display:none}.trust-item>.icon{width:18px;height:18px}.guides-section{margin-top:37px}.guide-grid,.guides-page .guide-grid{grid-template-columns:1fr;gap:11px}.guide-card{padding:20px;border-radius:13px}.guide-card-top{margin-bottom:10px}.guide-card h3{font-size:14px;line-height:1.7;margin-bottom:8px}.guide-card p{font-size:11px;margin-bottom:14px}.guide-read{font-size:10px}.category-label{font-size:9px}.about-band{grid-template-columns:1fr;gap:28px;margin-top:36px;padding:25px;border-radius:15px}.about-band h2{font-size:22px}.about-band p{font-size:12px}.about-kicker{font-size:10px}.principles{gap:18px}.principles b{font-size:12px}.principles p{font-size:11px}.faq-section{margin-top:35px}.faq-item summary{font-size:12px;padding:17px 0}.faq-item>p{font-size:12px;line-height:1.9;padding-right:15px}.faq-q{font-size:11px}.footer-top{flex-direction:column;gap:22px;padding-bottom:23px}.footer-links{max-width:none;justify-content:flex-start;gap:9px 17px}.footer-links a{font-size:11px}.footer-bottom{flex-direction:column;gap:9px;font-size:9px;line-height:1.9}footer.site{padding:27px 0 23px}.footer-brand p{font-size:11px}.back-top{right:15px;bottom:15px;width:36px;height:36px;border-radius:10px}main{padding:24px 0 45px}.card{padding:23px 19px;border-radius:14px}.card h1{font-size:24px}.card h2{font-size:19px;margin-top:28px}.card h3{font-size:16px}.card p,.card li{font-size:14px}.lead{font-size:14px!important}.meta{font-size:10px;padding-bottom:17px}.calc{padding:18px 15px;margin-top:20px;gap:17px}.field label{font-size:12px}.field input,.field select{font-size:16px}.result{padding:18px 14px}.result .big{font-size:25px}.result .big small{display:block;margin:3px 0 0}.kv{font-size:12px;gap:8px 10px}.kv .sub{font-size:11px}.card .note{font-size:11px!important}.callout{font-size:13px}.toc{font-size:12px;padding:17px}table{font-size:12px}th,td{padding:9px 10px}.article-page article>h1{font-size:24px}.article-page article>.lead{font-size:12px!important}.catalog-page .hero-new{padding-top:38px;padding-bottom:30px}.catalog-page .hero-new h1{font-size:30px}.guides-page .guide-card{min-height:0}}
@media(max-width:360px){.wrap{padding:0 14px}.header-actions{gap:10px}nav.main{gap:11px}.logo{font-size:19px}.hero-new h1{font-size:31px}.tool-card{padding:17px 12px}.tool-card h3{font-size:12px}.tool-card p{font-size:10px}.tool-category{font-size:8px}.filter-button{padding:7px 8px;font-size:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* Public examples and inspectable reference material. */
.example-presets,.source-notes{margin:28px 0;padding:22px;border:1px solid var(--line);border-radius:16px;background:var(--card)}
.example-presets h2,.source-notes h2{margin-top:0;font-size:1.15rem}
.example-buttons{display:flex;flex-wrap:wrap;gap:9px}
.example-button{font:inherit;line-height:1.5;text-align:left;border:1px solid var(--line);border-radius:10px;padding:10px 13px;background:var(--accent-2);color:var(--text);cursor:pointer}
.example-button:hover,.example-button:focus-visible{border-color:var(--accent)}
.example-status{font-size:.88rem;color:var(--muted);margin-bottom:0}
.source-notes li{margin:12px 0}.source-notes li p{font-size:.9rem;color:var(--muted);margin:3px 0}
.calculation-detail{margin-top:18px}.calculation-detail summary{cursor:pointer;font-weight:700}.calculation-detail table{font-size:.9rem}
@media(max-width:600px){.example-presets,.source-notes{padding:16px}.example-button{width:100%}}

.example-presets>summary{cursor:pointer;font-weight:700;color:var(--accent)}