:root{--paper:#f6f4ed;--card:#fffef9;--ink:#1d2825;--muted:#58645e;--line:#d7dbd1;--accent:#c53224;--soft:#fff0e9;--dark:#192122;--orange:#ffa181;--font:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--mono:ui-monospace,SFMono-Regular,Consolas,monospace;color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 var(--font);-webkit-font-smoothing:antialiased}body,button,input,textarea{font-family:var(--font)}button,input,textarea{font-size:16px}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:4px}button,a,input,textarea,summary{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default}a,button,input,textarea,summary{outline-offset:4px}:focus-visible{outline:3px solid #10776c}button{font-weight:650}img,svg{max-width:100%}svg{display:block}[hidden]{display:none!important}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.15;text-wrap:balance}button,a{-webkit-tap-highlight-color:transparent}button{border-radius:4px}input,textarea{border-radius:4px}input,textarea{width:100%;min-width:0}button,input,textarea{color:inherit}.wrap{width:min(1240px,calc(100% - 64px));margin-inline:auto}.skip{position:fixed;top:-100px;left:16px;padding:12px 20px;background:#fff;color:#111;z-index:100}.skip:focus{top:12px}.topline{background:var(--dark);color:#dce2d9;font:10px/1.5 var(--mono);letter-spacing:.07em;padding:9px 0;text-transform:uppercase}.topline .wrap{display:flex;justify-content:space-between;gap:20px}.site-header{background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}.header-inner{height:88px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:inline-flex;align-items:center;gap:12px;font-size:29px;font-weight:850;letter-spacing:-1.3px;line-height:1}.brand:hover{text-decoration:none}.brand-mark{display:grid;place-items:center;width:46px;height:46px;background:var(--accent);color:#fff;font-size:27px;font-style:italic;letter-spacing:-3px;border-radius:5px}.brand small{display:block;font:9px/1.4 var(--mono);font-weight:700;letter-spacing:.38em;margin-top:4px}.main-nav{display:flex;align-items:center;gap:26px;font-size:13px;font-weight:650}.main-nav a{display:flex;align-items:center;min-height:44px}.main-nav .nav-tools{background:var(--ink);color:#fff;padding:7px 16px;gap:20px;border-radius:4px}.menu-toggle{display:none;background:transparent;border:1px solid var(--line);padding:9px 13px;gap:16px;align-items:center}.eyebrow,.tag{font:11px/1.4 var(--mono);font-weight:750;letter-spacing:.08em;text-transform:uppercase}.eyebrow{color:var(--accent);margin:0 0 13px}.tag{color:var(--accent);font-size:10px;letter-spacing:.05em}.hero{background:var(--dark);display:grid;grid-template-columns:1.06fr 1fr;gap:25px;color:#f7f5e8;padding:45px 40px;margin-top:32px;border-top:5px solid var(--accent);isolation:isolate}.hero-copy{min-width:0;display:flex;flex-direction:column;justify-content:center}.hero .eyebrow{color:var(--orange)}.hero h1{font-size:clamp(42px,4.5vw,65px);line-height:1.02;letter-spacing:-3px;margin:11px 0 24px;font-weight:850}.hero h1 em{font-style:normal;color:var(--orange)}.hero-copy>p:not(.eyebrow){font-size:14px;line-height:1.8;color:#d4ded7;max-width:495px;margin-bottom:25px}.hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:18px;min-height:47px;background:var(--accent);color:#fff;border:1px solid transparent;padding:12px 19px;font-size:13px;font-weight:750;border-radius:4px;line-height:1.4;text-decoration:none!important;transition:background .15s,transform .15s}.btn:hover{background:#a92b20;transform:translateY(-1px)}.hero .btn{background:var(--orange);color:#1b221e}.hero .btn:hover{background:#ffc1a7}.hero :focus-visible{outline-color:#ffe3bd}.hero-text-link{font-size:12px;font-weight:650;text-underline-offset:5px}.hero-note{display:flex;gap:25px;margin-top:27px;color:#c5d1c9;font:10px/1.4 var(--mono);text-transform:uppercase;letter-spacing:.02em}.hero-note span:before{content:'+';color:var(--orange);margin-right:8px}.hero-art{min-width:0;border:1px solid #46524d;border-radius:4px;padding:18px 18px 22px;align-self:center;background:#202b29}.art-top{font:8px/1.6 var(--mono);display:flex;justify-content:space-between;gap:10px;color:#d2dcd3}.art-live{color:var(--orange);text-align:right}.hero-art svg{width:100%;height:auto;margin:15px 0 7px}.art-caption{display:flex;gap:15px;align-items:end;justify-content:space-between;border-top:1px solid #46524d;padding-top:14px}.art-caption strong{font-size:18px;line-height:1.3;letter-spacing:-.3px}.art-caption>span{font:8px/1.6 var(--mono);color:#c3cfc4;text-align:right;letter-spacing:.1em}.stats-strip{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-top:0;background:var(--card)}.stats-strip>span{padding:18px 24px;font:11px/1.4 var(--mono);color:var(--muted);display:flex;align-items:center;gap:14px}.stats-strip>span+span{border-left:1px solid var(--line)}.stats-strip strong{font-size:22px;color:var(--ink);font-weight:550;letter-spacing:-1px}.section{padding-block:65px}.section-head{display:flex;justify-content:space-between;gap:28px;align-items:end;margin-bottom:28px}.section-head>div{min-width:0;max-width:700px}.section-head h2{font-size:clamp(27px,2.7vw,36px);letter-spacing:-1.3px;margin:0;max-width:680px}.section-head>p{font-size:13px;color:var(--muted);margin:0;max-width:345px}.section-head>.text-link{flex-shrink:0}.text-link{font-size:12px;font-weight:750;color:var(--accent);line-height:1.6}.modalities-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.modality-card{background:var(--card);border:1px solid var(--line);border-radius:5px;display:grid;grid-template-columns:113px 1fr;gap:16px;padding:22px 20px;align-items:center;transition:border-color .15s,transform .15s;min-height:176px}.modality-card:hover{text-decoration:none;border-color:var(--accent);transform:translateY(-3px)}.modality-card:focus-visible{outline-offset:1px}.modality-art{color:#7f3c2d;aspect-ratio:1;display:grid;place-items:center;background:#f2ece0;border-radius:50%}.modality-art svg{width:100%;height:auto}.modality-card:nth-child(2) .modality-art{color:#3b6661;background:#e8eeE4}.modality-card:nth-child(3) 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.calculator-shell{border:1px solid var(--line);border-top:4px solid var(--accent);padding:30px;background:var(--card)}.method{max-width:850px;margin:40px 0 25px}.method h2{font-size:26px;letter-spacing:-.7px}.method p{color:var(--muted);font-size:14px}.method .formula{font:12px/1.9 var(--mono);color:var(--ink);background:#e8ece3;border:1px solid var(--line);padding:20px}.related-guide{display:grid;grid-template-columns:1fr 25px;gap:9px 20px;border:1px solid var(--line);border-left:4px solid var(--accent);padding:23px 25px;background:var(--card);max-width:850px;margin:32px 0}.related-guide:hover{border-color:var(--accent);text-decoration:none}.related-guide .tag{grid-column:1}.related-guide strong{font-size:20px;line-height:1.4;letter-spacing:-.4px}.related-guide>span:last-child{grid-column:2;grid-row:1/3;align-self:center;font-size:24px;color:var(--accent)}.guide-controls{margin:25px 0 23px;border-block:1px solid 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145px);overflow:auto}.article-toc{border-block:1px solid var(--line);padding-block:22px}.article-toc .eyebrow{font-size:10px;color:var(--muted)}.article-toc ol{padding-left:18px;margin:15px 0 0}.article-toc li{padding:4px 0 8px;font-size:12px;line-height:1.6}.article-toc li::marker{color:var(--accent)}.side-tools{margin-top:22px;padding:20px;background:#e7ebe1}.side-tools .eyebrow{font-size:9px}.side-tools a{display:block;font-size:11px;font-weight:650;padding:10px 0;border-top:1px solid #c9d2c3}.side-tools a span{color:var(--accent);float:right}.article-body{max-width:840px;font-size:16px;line-height:1.95;min-width:0}.article-body h2{font-size:28px;letter-spacing:-.8px;line-height:1.25;margin:35px 0 18px}.article-body section:first-of-type h2{margin-top:15px}.article-body p{margin-bottom:22px}.article-meta{display:flex;gap:10px 20px;flex-wrap:wrap;align-items:center;font:9px/1.7 var(--mono);color:var(--muted);padding-bottom:15px;border-bottom:1px solid var(--line);margin-bottom:25px}.article-meta .save-button{margin-left:auto}.article-body>p.article-meta{display:block}.source-list{padding-left:18px}.source-list li{margin-block:12px;font-size:13px;line-height:1.75;overflow-wrap:anywhere}.buying-checklist{padding:0;list-style:none;border-top:1px solid var(--line)}.buying-checklist li{padding:13px 14px 13px 38px;position:relative;border-bottom:1px solid var(--line);font-size:14px;background:#fffef9}.buying-checklist li:before{content:'✓';color:var(--accent);position:absolute;left:14px}.plain-page{max-width:900px;margin:25px 0 55px}.saved-list{padding:0;list-style:none;border-top:1px solid var(--line);margin-bottom:30px}.saved-list li{border-bottom:1px solid var(--line);padding:20px 0;display:flex;justify-content:space-between;align-items:center;gap:20px}.saved-list a{font-size:17px;font-weight:650;line-height:1.5}.saved-list button{background:transparent;border:1px solid var(--line);padding:10px 13px;min-height:42px;font-size:11px}.notice{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);z-index:60;max-width:calc(100% - 32px);width:max-content;background:#fff7da;color:#263629;border:1px solid #b9bda4;box-shadow:0 8px 40px #17251e26;border-radius:5px;padding:13px 20px;font-size:12px;margin:0}
@media(min-width:1500px){.hero{padding:52px 45px}.hero h1{font-size:66px}}
@media(max-width:1120px){.main-nav{gap:18px}.hero{padding:35px 30px;gap:20px}.hero h1{font-size:52px}.hero-actions{gap:15px}.hero .btn{font-size:11px;padding:12px 14px}.hero-text-link{font-size:11px}.modality-card{grid-template-columns:80px 1fr;padding:21px 17px;gap:14px}.modality-card h3{font-size:20px}.modality-card p{font-size:11px}.reading-layout{grid-template-columns:220px minmax(0,1fr);gap:35px}.footer-grid{gap:25px}.art-live{display:none}.budget-feature{padding:28px}.result-card{padding:23px}.result-row:first-child strong{font-size:23px}.tool-card{padding:23px;grid-template-columns:30px 1fr 15px;gap:15px}}
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@media(max-width:680px){html{scroll-padding-top:94px}.wrap{width:calc(100% - 32px)}.topline{font-size:8px;padding:8px 0}.topline .wrap>span{max-width:210px}.topline a{font-size:8px;max-width:110px;text-align:right}.header-inner{height:72px}.brand{font-size:25px}.brand small{font-size:8px}.brand-mark{height:39px;width:39px}.main-nav{top:72px;left:-16px;width:calc(100% + 32px);padding:15px 16px}.menu-toggle{font-size:13px}.hero{grid-template-columns:1fr;padding:30px 22px 24px;margin-top:20px;gap:29px}.hero h1{font-size:clamp(39px,9vw,54px);letter-spacing:-2px;margin-top:10px;margin-bottom:20px}.hero-copy>p:not(.eyebrow){font-size:14px;line-height:1.75;max-width:560px}.hero .eyebrow{font-size:10px}.hero-actions{gap:20px}.hero .btn{font-size:12px;min-height:46px}.hero-text-link{font-size:11px}.hero-note{font-size:9px;margin-top:22px;gap:18px}.hero-art{padding:16px}.hero-art svg{margin:9px 0 0;max-height:250px}.art-caption strong{font-size:17px}.art-caption>span{display:block;font-size:8px}.art-top{font-size:8px}.stats-strip{grid-template-columns:1fr}.stats-strip>span{padding:12px 20px;gap:17px;font-size:10px;min-height:49px}.stats-strip>span+span{border-left:0;border-top:1px solid var(--line)}.stats-strip strong{font-size:21px;min-width:30px}.section{padding-block:40px}.section-head{display:block;margin-bottom:23px}.section-head h2{font-size:29px;letter-spacing:-1px}.section-head>.text-link{display:inline-block;margin-top:17px}.section-head>p{font-size:13px;margin-top:16px;max-width:550px}.eyebrow{font-size:10px}.modalities-grid{gap:13px}.modality-card{grid-template-columns:1fr;gap:14px;padding:19px 16px;min-height:0;align-items:start}.modality-art{width:84px;aspect-ratio:1}.modality-card h3{font-size:20px;letter-spacing:-.5px;margin:9px 0}.modality-card p{font-size:11px;margin:0 0 13px}.modality-index{font-size:7px}.modality-card .text-link{font-size:10px}.tools-section{padding-block:36px}.tools-grid{grid-template-columns:1fr;gap:13px}.tool-card{padding:22px 20px;grid-template-columns:33px 1fr 16px;gap:13px}.tool-card h3{font-size:21px;max-width:100%}.tool-card p{font-size:12px}.guides-grid{grid-template-columns:1fr;gap:15px}.guide-card{padding:23px}.guide-top{margin-bottom:18px}.guide-card h3{font-size:23px;max-width:none}.guide-card p{font-size:13px;margin-bottom:20px}.guide-foot{padding-top:9px}.guide-foot>span{font-size:9px}.budget-feature{padding:26px 18px 20px}.calculator-shell{grid-template-columns:1fr;gap:26px}.fields{gap:17px 14px}.field label{font-size:12px}.field small{font-size:10px}.field input,.field textarea{font-size:16px}.form-intro>span:last-child{font-size:9px;max-width:170px}.calculator-result{border-top:1px solid var(--line);padding-top:23px}.calc-status{font-size:9px}.result-card{padding:23px 21px}.result-card h3{font-size:23px}.result-row span{font-size:11px}.result-row strong{font-size:17px}.result-row:first-child strong{font-size:27px}.result-note{font-size:11px}.bar-row{grid-template-columns:105px 1fr}.feature-foot{text-align:left;font-size:11px}.products-grid{grid-template-columns:1fr;gap:16px}.product-card{display:grid;grid-template-columns:100px 1fr}.product-art{aspect-ratio:auto;border-right:1px solid var(--line);border-bottom:0;height:100%;padding:7px}.product-art svg{height:100%;width:100%;max-height:170px}.product-copy{padding:22px 18px}.product-copy h3{font-size:22px}.product-copy p{font-size:12px}.faq-section{padding-bottom:35px}.faq-section summary{font-size:14px;min-height:58px;line-height:1.55}.faq-section details p{font-size:13px}.site-footer{margin-top:35px;padding:36px 0 20px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px 22px}.footer-grid nav{font-size:11px}.footer-grid nav strong{font-size:11px}.footer-grid>div{grid-column:1/-1}.footer-bottom{display:block;font-size:8px;line-height:1.8;margin-top:27px}.footer-bottom>span{display:block;margin-top:8px}.page-heading{margin:28px 0}.page-heading h1{font-size:36px;letter-spacing:-1.1px}.page-heading>p:last-child{font-size:14px}.breadcrumbs{font-size:9px;margin-top:24px}.tool-page .calculator-shell{padding:24px 18px}.method h2{font-size:25px}.method p{font-size:13px}.method .formula{padding:17px;font-size:11px}.related-guide{padding:20px}.related-guide strong{font-size:19px}.filter-list button{font-size:10px;padding:8px 11px}.search-field input{font-size:16px}.reading-layout{grid-template-columns:1fr;gap:28px;margin-bottom:35px}.reading-side{position:static;max-height:none;overflow:visible}.article-toc{padding-block:18px}.article-toc ol{display:grid;grid-template-columns:1fr 1fr;gap:0 20px;margin-top:12px}.article-toc li{font-size:11px;line-height:1.7}.side-tools{display:none}.article-body{font-size:15px;line-height:1.9;max-width:none}.article-body h2{font-size:25px}.article-body section:first-of-type h2{margin-top:7px}.article-meta{font-size:8px;gap:9px 17px}.article-meta .save-button{margin-left:0}.article-body p{margin-bottom:21px}.note-box{font-size:12px;padding:17px 19px}.source-list li{font-size:12px}.saved-list li{gap:13px}.saved-list a{font-size:15px}.saved-list button{font-size:10px;padding:8px 11px;flex-shrink:0}.notice{font-size:11px;bottom:12px;padding:13px 16px}}
@media(max-width:380px){.wrap{width:calc(100% - 24px)}.hero{padding:26px 18px}.hero h1{font-size:39px;letter-spacing:-1.9px}.hero-note{gap:13px;font-size:8px}.fields{grid-template-columns:1fr}.modality-card{padding:17px 14px}.modality-card h3{font-size:18px}.modality-art{width:72px}.article-toc ol{grid-template-columns:1fr}.result-row:first-child strong{font-size:24px}.product-card{grid-template-columns:80px 1fr}.brand{font-size:23px}.brand-mark{width:37px;height:37px}.art-caption strong{font-size:16px}.art-caption>span{font-size:7px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
@media print{.site-header,.topline,.site-footer,.reading-side,.hero-art,.hero-actions,.save-button,.form-actions,.result-actions,.notice,.guide-controls{display:none!important}.wrap{width:100%}.hero{display:block;background:white;color:black;border-color:#000}.hero h1 em,.hero p{color:#000!important}.calculator-shell,.reading-layout{display:block}.calculator-result{margin-top:25px}.result-card{background:#fff;color:#000;border:1px solid #000;break-inside:avoid}.result-card *{color:#000!important}.table-wrap{overflow:visible;max-height:none}.result-row{border-color:#aaa}body{background:#fff}.product-card,.guide-card{break-inside:avoid}.page-heading h1{font-size:28px}.article-body{max-width:none}}
@media(max-width:900px){html:not(.js) .header-inner{height:auto;padding-block:17px;gap:20px}html:not(.js) .main-nav{position:static;width:100%;padding:0;border:0;box-shadow:none;flex-direction:row;flex-wrap:wrap;font-size:11px;gap:10px}html:not(.js) .main-nav a{padding:7px 10px;min-height:40px}}