:root{--bg:#FAF9F7;--surface:#FFFFFF;--text:#2C3E50;--muted:#647384;--primary:#2C3E50;--on-primary:#FFFFFF;--secondary:#3A7A82;--accent:#E6A863;--border:#D9D9D6;--max:1280px;--read:720px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter, system-ui, sans-serif;line-height:1.65}a{color:var(--primary);text-underline-offset:3px}.shell{width:min(var(--max),calc(100% - 40px));margin:auto}.preview-banner{padding:9px 20px;background:#2b2118;color:#fff;text-align:center;font-size:13px;letter-spacing:.02em}.site-header{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.header-inner{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}.header-stacked .brand-row{padding:19px 0 8px}.header-stacked .nav-row{padding:0 0 14px}.header-minimal .nav-disclosure{position:relative}.header-minimal .nav-disclosure summary{cursor:pointer;font-size:14px}.header-minimal .nav-disclosure nav{position:absolute;right:0;top:38px;min-width:220px;display:grid;background:var(--surface);border:1px solid var(--border);padding:16px;border-radius:12px;box-shadow:0 14px 30px rgba(20,30,40,.12)}.brand{font-family:Source Serif Pro, Georgia, serif;font-size:21px;font-weight:700;color:var(--text);text-decoration:none}nav{display:flex;gap:18px;flex-wrap:wrap}nav a{font-size:14px;color:var(--text);text-decoration:none}nav a[aria-current=page]{color:var(--primary);font-weight:700}.mobile-nav{display:none}.hero{padding:74px 0 56px;border-bottom:1px solid var(--border)}.hero-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(180px,.55fr);align-items:end;gap:56px}.kicker{color:var(--primary);font-size:12px;font-weight:800;letter-spacing:.14em}h1,h2{font-family:Source Serif Pro, Georgia, serif;line-height:1.08}h1{font-size:clamp(42px,7vw,82px);max-width:900px;margin:.16em 0}.dek{max-width:720px;color:var(--muted);font-size:clamp(18px,2vw,22px)}.hero-mark{height:180px;border-radius:999px 999px 24px 24px;background:linear-gradient(145deg,var(--primary),var(--secondary));box-shadow:inset 0 0 0 12px color-mix(in srgb,var(--surface) 18%,transparent)}.hero-centered{text-align:center}.hero-centered h1,.hero-centered .dek{margin-left:auto;margin-right:auto}.hero-rule{width:96px;height:8px;background:var(--accent);margin:28px auto 0;border-radius:99px}.editorial-hero-grid{display:grid;grid-template-columns:180px 1fr;gap:40px;align-items:start}.editorial-kicker{padding-top:20px;border-top:4px solid var(--accent)}.metric-hero-grid{display:grid;grid-template-columns:90px 1fr;gap:42px}.metric-rail{display:grid;grid-template-rows:repeat(4,1fr);min-height:200px;border-left:3px solid var(--primary)}.metric-rail span{display:block;border-top:1px solid var(--border)}.article-grid{display:grid;grid-template-columns:minmax(0,var(--read)) minmax(220px,1fr);gap:70px;align-items:start;padding:56px 0 84px}.article-rail{grid-template-columns:minmax(220px,1fr) minmax(0,var(--read))}.article-wide{max-width:var(--read);padding:56px 0 84px}.related-top{margin-bottom:28px}.content-meta{position:static;display:grid;gap:5px;padding:16px 18px;margin-bottom:24px;border-left:4px solid var(--accent);background:var(--surface);font-size:14px}.content-meta span{color:var(--muted)}.content-section{padding:10px 0 34px;border-bottom:1px solid var(--border)}.section-cards{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px 28px;margin:18px 0;box-shadow:0 8px 24px rgba(20,30,40,.04)}.section-banded{padding:28px;margin:0 -28px;border-bottom:0}.section-banded.section-1{background:color-mix(in srgb,var(--surface) 72%,transparent)}.section-plain{border-bottom:0;padding-bottom:24px}.content-section h2{font-size:clamp(28px,3vw,40px);margin:.65em 0 .4em}.content-section p,.content-section li{font-size:17px}.source-refs{font-size:13px!important;color:var(--muted)}aside{position:sticky;top:100px}.aside-card{background:var(--surface);border:1px solid var(--border);padding:22px;border-radius:14px;box-shadow:0 12px 30px rgba(20,30,40,.05)}.aside-card a{display:block;margin-top:12px}details{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:15px 18px;margin:10px 0}summary{cursor:pointer;font-weight:700}.site-footer{padding:38px 0;border-top:1px solid var(--border);background:var(--surface)}.site-footer .shell{display:grid;gap:18px}.site-footer small{color:var(--muted)}:focus-visible{outline:3px solid var(--accent);outline-offset:3px}@media(max-width:800px){.header-inner{min-height:60px;flex-direction:row;padding:10px 0}.desktop-nav{display:none}.mobile-nav{display:block;position:relative;margin-left:auto}.mobile-nav summary{cursor:pointer;list-style:none;padding:10px 14px;border:1px solid var(--border);border-radius:9px;font-weight:800}.mobile-nav nav{position:absolute;right:0;top:48px;min-width:min(280px,calc(100vw - 24px));display:grid;background:var(--surface);border:1px solid var(--border);padding:14px;border-radius:12px;box-shadow:0 16px 36px #0003}.hero{padding-top:48px}.hero-grid,.article-grid,.editorial-hero-grid,.metric-hero-grid{grid-template-columns:1fr}.hero-mark{height:90px;width:120px}.metric-rail{min-height:20px;grid-template-columns:repeat(4,1fr);grid-template-rows:1fr}aside{position:static}h1{font-size:44px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
/* Generated visual, approved features + mobile safety overrides. */
.page-group-home .hero{padding-bottom:68px}.page-group-home .content-section:first-child{font-size:1.04em}.page-group-how_to .steps{margin-top:22px}.page-group-how_to .steps li{padding-bottom:14px;border-bottom:1px dashed var(--border)}.page-group-comparison .table-scroll{width:100%;box-shadow:0 10px 28px rgba(20,30,40,.05)}.page-group-reference .content-section h2{font-size:clamp(25px,2.5vw,34px)}.page-group-reference .content-section{padding-bottom:24px}.page-group-tool .feature{margin-top:44px;margin-bottom:22px}.page-group-tool .feature-inner{box-shadow:0 18px 46px rgba(20,30,40,.08)}
.steps{counter-reset:step;padding-left:0;list-style:none}.steps li{counter-increment:step;display:grid;grid-template-columns:36px 1fr;gap:12px;align-items:start;margin:14px 0}.steps li:before{content:counter(step);display:grid;place-items:center;width:30px;height:30px;border-radius:999px;background:var(--primary);color:var(--on-primary);font-weight:800}.table-scroll{max-width:100%;overflow-x:auto;margin:22px 0}.table-scroll table{width:100%;border-collapse:collapse;background:var(--surface)}.table-scroll caption{text-align:left;font-weight:800;margin-bottom:8px}.table-scroll th,.table-scroll td{border:1px solid var(--border);padding:11px 13px;text-align:left;vertical-align:top}.table-scroll th{background:color-mix(in srgb,var(--surface) 78%,var(--primary));color:var(--text)}
.hero-visual,.editorial-visual{margin:28px 0;overflow:hidden;border-radius:18px;background:var(--surface);border:1px solid var(--border)}.hero-visual img,.editorial-visual img{display:block;width:100%;height:100%;object-fit:cover}
.feature{margin-top:34px;margin-bottom:12px}.feature-inner,.feature-checklist,.feature-faq-filter,.feature-nav{border:1px solid var(--border);background:var(--surface);border-radius:16px;padding:22px}.feature-inner{display:grid;grid-template-columns:1fr 1fr;gap:30px}.feature-inner>small{grid-column:1/-1}.feature h2{margin:.2em 0 .5em}.feature form label,.feature-faq-filter label{display:block;font-weight:700;margin:9px 0}.feature input,.feature select{width:100%;padding:10px;border:1px solid var(--border);border-radius:9px;background:var(--bg);color:var(--text)}.feature button{margin-top:12px;padding:11px 16px;border:0;border-radius:9px;background:var(--primary);color:var(--on-primary);font-weight:800}.bmi-tool output,.calculator-results{display:block;min-height:30px;margin-top:12px;font-size:20px;font-weight:800}.calculator-inputs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 14px}.calculator-results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;font-size:16px}.calculator-results span{display:block;padding:10px 12px;border:1px solid var(--border);border-radius:9px}.amortization-schedule{margin-top:18px}.amortization-schedule .table-scroll{max-height:520px;overflow:auto}.amortization-schedule thead{position:sticky;top:0;background:var(--surface);z-index:1}.feature-nav{display:flex;gap:10px;flex-wrap:wrap}.feature-nav a{padding:6px 10px;border:1px solid var(--border);border-radius:999px;text-decoration:none}.checklist-items{display:grid;gap:9px}.checklist-items label{display:flex;gap:9px;align-items:flex-start}.checklist-items input{width:auto;margin-top:5px}
.feature-bmi.variant-compact .feature-inner,.feature-amortization.variant-compact .feature-inner{grid-template-columns:1fr;max-width:860px}.feature-bmi.variant-card .feature-inner,.feature-amortization.variant-card .feature-inner{box-shadow:0 16px 40px rgba(20,30,40,.08)}.feature-nav.variant-numbered{display:grid}.feature-nav.variant-numbered a{border-radius:8px;border-width:0 0 0 3px}.feature-nav.variant-rail{overflow-x:auto;flex-wrap:nowrap}.feature-checklist.variant-minimal{background:transparent;border-width:0;border-left:3px solid var(--primary);border-radius:0}.feature-checklist.variant-progress .checklist-items{grid-template-columns:repeat(2,minmax(0,1fr))}.feature-faq-filter.variant-compact{max-width:680px}.feature-faq-filter.variant-minimal{border:0;background:transparent;padding-left:0;padding-right:0}
.ad-banner{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center;margin-top:34px;margin-bottom:8px;padding:24px 28px;border:1px solid var(--border);border-left:6px solid var(--accent);border-radius:16px;background:var(--surface);box-shadow:0 14px 34px rgba(20,30,40,.07)}.ad-banner h2{font-size:clamp(24px,3vw,34px);margin:.2em 0}.ad-banner p{margin:.35em 0;color:var(--muted)}.ad-banner>a{display:inline-flex;padding:12px 18px;border-radius:10px;background:var(--primary);color:var(--on-primary);text-decoration:none;font-weight:800}.ad-disclosure{font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted)}.social-links{display:flex;gap:12px;flex-wrap:wrap}.social-links a{font-size:13px}
.latest-articles{padding:0 0 84px}.latest-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:24px;border-bottom:1px solid var(--border)}.latest-heading span{padding-bottom:12px;color:var(--primary);font-size:12px;font-weight:800;letter-spacing:.13em}.latest-heading h2{margin:0;padding-bottom:12px;font-size:clamp(30px,4vw,48px)}.latest-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.latest-card{padding:22px;border:1px solid var(--border);border-radius:15px;background:var(--surface);box-shadow:0 10px 28px rgba(20,30,40,.05)}.latest-card h3{margin:.1em 0 .55em;font-family:Source Serif Pro, Georgia, serif;font-size:22px;line-height:1.2}.latest-card h3 a{text-decoration:none}.latest-card p{color:var(--muted)}.latest-card time,.latest-card>span{font-size:12px;color:var(--muted)}
/* Executable site families: each changes composition, rhythm and component geometry, not only color. */
.site-family-editorial-journal .site-header{position:relative;background:var(--bg)}.site-family-editorial-journal .brand{font-size:clamp(25px,3vw,40px)}.site-family-editorial-journal .hero{padding-top:96px}.site-family-editorial-journal .hero h1{max-width:1050px}.site-family-editorial-journal .latest-grid{grid-template-columns:2fr 1fr 1fr}.site-family-editorial-journal .latest-card:first-child{grid-row:span 2}.site-family-editorial-journal .content-section:first-of-type p:first-of-type{font-size:20px}
.site-family-reference-atlas{background-image:linear-gradient(90deg,color-mix(in srgb,var(--border) 32%,transparent) 1px,transparent 1px);background-size:72px 100%}.site-family-reference-atlas .site-header{border-top:6px solid var(--primary)}.site-family-reference-atlas .hero{background:color-mix(in srgb,var(--surface) 74%,transparent)}.site-family-reference-atlas .content-section{border-left:3px solid var(--border);padding-left:24px}.site-family-reference-atlas .content-section h2{letter-spacing:-.02em}.site-family-reference-atlas details{border-radius:2px}
.site-family-guided-path .hero{border-bottom:0}.site-family-guided-path .article-grid,.site-family-guided-path .article-wide{padding-top:32px}.site-family-guided-path .content-section{position:relative;border:0;border-left:4px solid var(--border);padding-left:34px}.site-family-guided-path .content-section:before{content:"";position:absolute;left:-10px;top:23px;width:16px;height:16px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 6px var(--bg)}.site-family-guided-path .aside-card{border-radius:999px 999px 18px 18px}
.site-family-comparison-lab .site-header,.site-family-comparison-lab .hero{background:var(--surface)}.site-family-comparison-lab .hero h1{margin-inline:auto}.site-family-comparison-lab .article-wide{max-width:min(var(--max),100%)}.site-family-comparison-lab .section-cards,.site-family-comparison-lab .latest-card,.site-family-comparison-lab details{border-radius:4px;box-shadow:none}.site-family-comparison-lab table{font-variant-numeric:tabular-nums}.site-family-comparison-lab th{border-bottom:3px solid var(--primary)}
.site-family-tool-console .site-header{position:relative;border-bottom:0}.site-family-tool-console .hero{padding-bottom:34px;background:color-mix(in srgb,var(--surface) 82%,var(--primary))}.site-family-tool-console .feature-inner{border-width:2px;border-radius:24px;box-shadow:0 24px 70px color-mix(in srgb,var(--primary) 18%,transparent)}.site-family-tool-console .feature input,.site-family-tool-console .feature select{border-width:2px}.site-family-tool-console .content-meta{border-left:0;border-top:5px solid var(--accent)}
.site-family-civic-resource .site-header{position:relative;border-top:10px solid var(--primary);background:var(--surface)}.site-family-civic-resource .brand{text-transform:uppercase;letter-spacing:.06em}.site-family-civic-resource .hero{padding:52px 0;background:var(--surface)}.site-family-civic-resource h1{font-size:clamp(38px,5vw,66px)}.site-family-civic-resource .content-section{border-bottom:2px solid var(--border)}.site-family-civic-resource .site-footer{border-top:8px solid var(--primary)}
.site-family-field-notes .site-header{position:relative;background:transparent}.site-family-field-notes .hero{margin:24px auto;width:min(calc(100% - 32px),calc(var(--max) + 80px));border:1px dashed var(--border);border-radius:28px}.site-family-field-notes .hero-mark{border-radius:38% 62% 58% 42%;transform:rotate(-4deg)}.site-family-field-notes .content-section{border-bottom-style:dashed}.site-family-field-notes .latest-card:nth-child(even){transform:translateY(14px)}
.site-family-minimal-brief .site-header{position:relative;background:var(--bg);backdrop-filter:none}.site-family-minimal-brief .hero{padding:110px 0 72px;border-bottom:0}.site-family-minimal-brief .hero h1{font-size:clamp(48px,8vw,96px);letter-spacing:-.045em}.site-family-minimal-brief .content-section,.site-family-minimal-brief details{border-radius:0;background:transparent}.site-family-minimal-brief .aside-card,.site-family-minimal-brief .latest-card{box-shadow:none;border-width:0 0 1px;border-radius:0}
.site-family-magazine-mosaic .site-header{position:relative}.site-family-magazine-mosaic .hero{background:var(--surface);border-bottom:8px solid var(--accent)}.site-family-magazine-mosaic .hero h1{max-width:1080px;letter-spacing:-.035em}.site-family-magazine-mosaic .content-section:nth-of-type(3n+1){padding:30px;background:color-mix(in srgb,var(--surface) 82%,transparent)}.site-family-magazine-mosaic .latest-grid{grid-template-columns:repeat(4,1fr)}.site-family-magazine-mosaic .latest-card:first-child{grid-column:span 2}
.site-family-blueprint-grid{background-image:linear-gradient(color-mix(in srgb,var(--primary) 8%,transparent) 1px,transparent 1px),linear-gradient(90deg,color-mix(in srgb,var(--primary) 8%,transparent) 1px,transparent 1px);background-size:32px 32px}.site-family-blueprint-grid .site-header{border-top:5px solid var(--accent)}.site-family-blueprint-grid .hero{background:color-mix(in srgb,var(--bg) 84%,var(--primary))}.site-family-blueprint-grid .content-section{background:color-mix(in srgb,var(--surface) 90%,transparent);padding:24px;margin:12px 0;border:1px solid var(--border);border-radius:2px}.site-family-blueprint-grid .aside-card{border-radius:2px}
.site-family-warm-studio .hero{border:0}.site-family-warm-studio .hero-visual,.site-family-warm-studio .editorial-visual{border-radius:42px 8px 42px 8px}.site-family-warm-studio .content-section{border:0;padding:28px 32px;margin:16px 0;background:color-mix(in srgb,var(--surface) 70%,transparent);border-radius:30px 8px 30px 8px}.site-family-warm-studio .aside-card{border-radius:50px 12px 50px 12px}
.site-family-monochrome-index .site-header{position:relative;border-top:12px solid var(--text);background:var(--surface)}.site-family-monochrome-index .brand{text-transform:uppercase;letter-spacing:.12em}.site-family-monochrome-index .hero{border-bottom:3px solid var(--text)}.site-family-monochrome-index .content-section{border-bottom:2px solid var(--text)}.site-family-monochrome-index .content-section h2{font-size:clamp(24px,3vw,36px);text-transform:uppercase;letter-spacing:.025em}.site-family-monochrome-index details,.site-family-monochrome-index .aside-card{border-radius:0;box-shadow:none}
.page-layout-1 .hero-visual{border-radius:36px 8px}.page-layout-2 .hero-visual{box-shadow:18px 18px 0 color-mix(in srgb,var(--accent) 28%,transparent);margin-bottom:46px}.page-layout-3 .content-section:nth-child(even){border-left:4px solid var(--accent);padding-left:24px}.page-layout-3 .hero{background:color-mix(in srgb,var(--surface) 74%,transparent)}
a,h1,h2{overflow-wrap:anywhere}
@media(max-width:800px){.shell{width:min(var(--max),calc(100% - 24px))}.section-banded{margin:0;padding:22px 16px}.section-cards{padding:20px 18px}.feature-inner,.feature-checklist.variant-progress .checklist-items,.ad-banner,.calculator-inputs,.calculator-results,.latest-grid,.site-family-editorial-journal .latest-grid{grid-template-columns:1fr}.latest-heading{display:block}.latest-heading h2{padding-top:4px}.feature-inner{padding:16px}h1{font-size:clamp(34px,11vw,44px)}.site-family-reference-atlas{background-size:36px 100%}.site-family-guided-path .content-section{padding-left:22px}.site-family-field-notes .latest-card:nth-child(even){transform:none}}