:root{--ink:#18334a;--muted:#526879;--paper:#fafcfd;--line:#ccd8e2;--blue:#245b7a;--accent:#dcec80;--soft:#eaf0f5;--warm:#fbf1d6;--error:#963c2a;--radius:12px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;font-size:16px;line-height:1.5}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}a{color:var(--blue);text-underline-offset:4px}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #7492b0;outline-offset:4px}button:disabled{cursor:default;opacity:.6}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.12;letter-spacing:-.035em}p{max-width:72ch}h2{font-size:clamp(26px,2.8vw,36px);font-weight:650}h3{font-size:21px;font-weight:650}input[type=number]{width:100%;min-width:0;border:1px solid #9daebc;border-radius:6px;padding:12px 13px;background:white;color:var(--ink);font-variant-numeric:tabular-nums;appearance:textfield}input[type=number]::-webkit-inner-spin-button{appearance:none}input[aria-invalid=true]{border-color:var(--error);box-shadow:0 0 0 1px var(--error)}.wrap{max-width:1180px;margin:0 auto;padding-left:36px;padding-right:36px}.site-header{display:flex;align-items:center;justify-content:space-between;min-height:102px;gap:24px}.wordmark{display:inline-flex;align-items:center;gap:11px;color:var(--ink);font-size:21px;font-weight:720;letter-spacing:-.045em;text-decoration:none;white-space:nowrap}.ruler-mark{width:28px;height:36px;background:var(--accent);border:2px solid var(--ink);border-radius:3px;position:relative;transform:rotate(-9deg)}.ruler-mark:after{content:"";position:absolute;right:0;top:6px;width:10px;height:2px;background:var(--ink);box-shadow:4px 6px var(--ink),0 12px var(--ink),4px 18px var(--ink)}.site-header nav{display:flex;gap:28px}.site-header nav a{text-decoration:none;font-size:14px;font-weight:600}.site-header nav a:hover{text-decoration:underline}.intro{display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:40px;padding-top:42px;padding-bottom:60px}.intro-note{font-size:14px;font-weight:600;color:var(--muted);margin-bottom:18px}.intro h1{font-size:clamp(48px,6vw,76px);line-height:1.02;letter-spacing:-.055em;font-weight:650;margin-bottom:24px}.intro-copy{max-width:430px;color:var(--muted);font-size:18px;line-height:1.55;margin-bottom:22px}.text-link{font-weight:650}.hero-drawing{padding-top:30px;transform:rotate(-2deg)}.hero-drawing svg{display:block;width:100%;height:auto;max-height:280px}.workbench{display:grid;grid-template-columns:1.35fr 1fr;gap:0;padding-left:0;padding-right:0;margin-left:auto;margin-right:auto;max-width:1108px;border:1px solid var(--line);border-radius:16px;background:white;overflow:hidden;box-shadow:0 12px 36px rgba(24,51,74,.04)}.measurement-panel{padding:32px}.section-title{display:flex;justify-content:space-between;align-items:center;gap:16px}.section-title h2{font-size:26px;margin-bottom:12px;max-width:330px}.step-label{display:block;font-size:13px;font-weight:650;color:var(--muted);margin-bottom:9px}.panel-intro{color:var(--muted);font-size:14px;line-height:1.5;margin:0 0 21px;max-width:50ch}.units{margin:0;padding:3px;border:1px solid var(--line);border-radius:8px;display:flex;flex-shrink:0;gap:2px}.units label{position:relative}.units input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}.units span{display:block;padding:5px 11px;border-radius:5px;font-size:14px;font-weight:600}.units input:checked+span{background:var(--ink);color:white}.units input:focus-visible+span{outline:3px solid #7492b0;outline-offset:3px}.example-row{display:flex;gap:6px;flex-wrap:wrap;align-items:center;margin:0 0 24px;font-size:12px;color:var(--muted)}.example-row button{background:var(--soft);border:none;border-radius:4px;padding:6px 9px;color:var(--blue);font-size:12px}.example-row button:hover{background:#dde8f0}.primary-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.field label{display:block;font-size:13px;font-weight:650;margin-bottom:7px;line-height:1.45}.dimension-mark{display:inline-flex;align-items:center;justify-content:center;width:19px;height:19px;margin-right:3px;border-radius:50%;font-size:11px;background:var(--soft);color:var(--muted)}.unit-label{font-size:12px;color:var(--muted);font-weight:450;padding-left:3px}.field-help{font-size:12px;line-height:1.45;color:var(--muted);margin-top:8px;margin-bottom:0}.field-error{font-size:12px;color:var(--error);line-height:1.4;margin:5px 0 0}.field-error:empty{display:none}.allowance-row{display:grid;grid-template-columns:1fr 88px;gap:18px;align-items:start;border-top:1px solid var(--line);padding-top:19px;margin-top:23px;margin-bottom:19px}.allowance-row label{margin-bottom:0}.allowance-row .field-help{margin-top:3px}.extra-measures{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:20px;padding:13px 0}.extra-measures summary{font-size:13px;font-weight:650;cursor:pointer}.extra-fields{display:grid;gap:18px;margin-top:18px}.extra-fields .field{display:grid;grid-template-columns:1fr 88px;gap:0 15px;align-items:start}.extra-fields .field input{grid-column:2;grid-row:1 / span 2}.extra-fields .field-help{margin-top:0;grid-column:1}.extra-fields .field-error{grid-column:1/-1}.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:1.5;cursor:pointer}.check-row input{width:17px;height:17px;min-width:17px;accent-color:var(--blue);margin:2px 0 0}.form-actions{display:flex;gap:15px;align-items:center;margin-top:22px;flex-wrap:wrap}.primary-button{border:1px solid var(--blue);background:var(--blue);color:white;padding:12px 19px;border-radius:6px;font-weight:650;font-size:14px}.primary-button:hover{background:#1b4861}.quiet-button{border:0;background:none;color:var(--muted);padding:10px 0;font-size:13px;text-decoration:underline;text-underline-offset:4px}.scope-note{font-size:11px;line-height:1.5;color:var(--muted);margin:15px 0 0;max-width:65ch}.plan-panel{background:#eef3f7;border-left:1px solid var(--line);padding:32px;display:flex;flex-direction:column}.plan-header{display:flex;align-items:center;justify-content:space-between;gap:12px}.plan-header h3{font-size:16px;letter-spacing:-.02em;margin:0}.plan-header>span{color:var(--muted);font-size:11px}.space-plan{margin-top:27px;min-height:250px;display:flex;align-items:center}.space-plan svg{display:block;width:100%;height:auto;max-height:310px;overflow:visible}.plan-caption{font-size:13px;line-height:1.6;color:var(--muted);margin:14px 0}.legend{display:flex;gap:12px;flex-wrap:wrap;font-size:10px;color:var(--muted)}.legend span{display:flex;gap:5px;align-items:center}.legend i{display:inline-block;width:11px;height:11px}.space-swatch{background:var(--accent);border:1px solid #8a9a46}.product-swatch{background:#fff;border:2px solid var(--blue)}.plan-tip{margin-top:auto;padding-top:35px;color:var(--muted);font-size:13px}.plan-tip strong{font-size:16px;color:var(--ink);letter-spacing:-.02em}.plan-tip p{margin:9px 0 10px}.plan-tip a{font-size:12px;font-weight:600}.results-section{padding-top:64px}.results-heading-row{display:flex;justify-content:space-between;align-items:center;gap:25px}.results-heading-row h2{margin-bottom:0}.results-summary{color:var(--muted);font-size:14px;margin:14px 0 25px}.secondary-button{border:1px solid #aabcc9;border-radius:5px;padding:9px 13px;background:white;color:var(--blue);font-size:12px;font-weight:650;flex-shrink:0}.secondary-button:hover{background:var(--soft)}.product-row{display:grid;grid-template-columns:180px minmax(220px,1fr) minmax(210px,1fr);gap:27px;padding:28px 0;border-top:1px solid var(--line);align-items:start}.product-drawing{background:#eef3f7;border-radius:8px;aspect-ratio:1.15;display:flex;align-items:center;justify-content:center}.product-drawing svg{width:90%;height:auto;max-height:150px}.product-brand{font-size:12px;color:var(--muted);margin-bottom:7px}.product-copy h3{margin:0 0 11px;font-size:21px;max-width:23ch}.product-note{font-size:13px;color:var(--muted);line-height:1.6;margin-bottom:13px}.product-specs{font-size:13px;color:var(--ink);font-variant-numeric:tabular-nums;margin-bottom:11px}.product-specs span{display:block}.price-note{font-size:12px;color:var(--muted);margin-bottom:9px}.manufacturer-link{font-size:12px;font-weight:650}.fit-status{display:inline-block;padding:5px 8px;background:var(--soft);color:var(--ink);font-size:12px;line-height:1.3;font-weight:650;border-radius:4px}.fit-status.dimension-match{background:#e5ecce;color:#3b4d18}.fit-status.too-large{background:#f6e3db;color:#823d28}.fit-status.unknown-spec{background:var(--warm);color:#795a19}.fit-detail{font-size:13px;color:var(--muted);line-height:1.55;margin:12px 0 0}.fit-detail li{margin-bottom:5px}.fit-detail ul{padding-left:18px;margin:8px 0 12px}.fit-detail strong{color:var(--ink);font-weight:650}.fit-extra{font-size:12px;color:var(--muted);margin-top:12px;padding-top:10px;border-top:1px solid var(--line)}.spec-caution{font-size:11px;line-height:1.55;color:#795a19;margin:10px 0 0}.results-footnote{padding-top:15px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);max-width:none;margin-bottom:0}.guide-section{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px;padding-top:80px;padding-bottom:75px}.guide-intro h2{font-size:36px;margin:0 0 18px}.guide-intro p{font-size:14px;color:var(--muted);max-width:34ch}.guide-links>a{display:flex;align-items:center;gap:20px;text-decoration:none;padding:23px 0;border-bottom:1px solid var(--line)}.guide-links>a:first-child{padding-top:8px}.guide-links h3{font-size:18px;margin-bottom:7px;color:var(--ink)}.guide-links p{font-size:13px;color:var(--muted);margin:0;line-height:1.5}.guide-icon{display:flex;align-items:center;justify-content:center;background:var(--accent);width:45px;height:45px;border-radius:50%;font-size:24px;color:var(--ink);flex-shrink:0}.link-chevron{font-size:28px;line-height:1;color:var(--muted);margin-left:auto}.guide-links a:hover h3{text-decoration:underline;text-underline-offset:4px}.site-footer{display:grid;grid-template-columns:1fr 1.1fr 1fr;gap:36px;border-top:1px solid var(--line);padding-top:30px;padding-bottom:40px;align-items:start}.site-footer .wordmark{font-size:18px}.site-footer p{font-size:11px;color:var(--muted);line-height:1.6;margin:0}.site-footer .ruler-mark{width:21px;height:30px}.print-record{display:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;left:16px;top:-100px;padding:10px;background:white;z-index:10}.skip-link:focus{top:16px}@media(max-width:1180px){.workbench{margin-left:36px;margin-right:36px}.measurement-panel,.plan-panel{padding:26px}.product-row{grid-template-columns:150px 1fr 1fr;gap:22px}.section-title h2{font-size:24px}.primary-fields{gap:10px}.dimension-mark{display:none}}@media(max-width:850px){.workbench{grid-template-columns:1fr 0.8fr}.measurement-panel,.plan-panel{padding:21px}.section-title{align-items:flex-start}.section-title h2{font-size:23px}.units span{padding:5px 8px}.primary-fields{grid-template-columns:1fr}.primary-fields .field{display:grid;grid-template-columns:1fr 110px;gap:0 15px}.primary-fields input{grid-column:2;grid-row:1/span 2}.primary-fields .field-help{margin-top:0}.primary-fields .field-error{grid-column:1/-1}.primary-fields label{margin-bottom:3px}.intro{gap:25px}.product-row{grid-template-columns:130px 1fr}.fit-column{grid-column:2}.guide-section{gap:40px}.site-header nav{gap:20px}.plan-tip{padding-top:30px}}@media(max-width:640px){.wrap{padding-left:22px;padding-right:22px}.site-header{min-height:82px;gap:15px}.wordmark{font-size:19px}.site-header nav{gap:15px}.site-header nav a{font-size:12px}.site-header nav a:first-child{display:none}.intro{padding-top:25px;padding-bottom:34px;grid-template-columns:1fr}.intro h1{font-size:55px;margin-bottom:20px}.intro-copy{font-size:16px;max-width:37ch}.intro-note{margin-bottom:15px;font-size:12px}.hero-drawing{display:none}.workbench{margin-left:14px;margin-right:14px;display:block}.measurement-panel{padding:23px 20px}.section-title h2{font-size:25px;max-width:230px}.panel-intro{font-size:13px}.example-row{margin-bottom:20px}.primary-fields{gap:17px}.primary-fields .field{grid-template-columns:1fr 113px}.dimension-mark{display:inline-flex}.primary-fields .field-help{font-size:11px}.plan-panel{padding:23px 20px;border-left:0;border-top:1px solid var(--line)}.space-plan{min-height:210px;margin-top:15px;max-width:400px;align-self:center;width:100%}.space-plan svg{max-height:260px}.plan-caption{font-size:12px}.plan-tip{padding-top:22px}.plan-tip p{font-size:12px;max-width:50ch}.results-section{padding-top:42px}.results-heading-row{align-items:flex-start;gap:10px}.results-heading-row h2{font-size:27px}.secondary-button{font-size:11px;padding:8px 10px}.product-row{grid-template-columns:95px 1fr;gap:16px;padding:24px 0}.product-copy h3{font-size:19px}.product-drawing{margin-top:22px;aspect-ratio:.8}.fit-column{grid-column:1/-1;margin-top:0;background:#f0f4f7;border-radius:6px;padding:15px}.product-note{font-size:12px}.product-specs{font-size:12px}.price-note{font-size:11px}.fit-detail{font-size:12px}.guide-section{display:block;padding-top:50px;padding-bottom:45px}.guide-intro h2{font-size:32px}.guide-intro h2 br{display:none}.guide-intro p{max-width:45ch;margin-bottom:25px}.guide-links>a{gap:14px;padding:20px 0}.guide-links h3{font-size:17px}.guide-links p{font-size:12px}.site-footer{grid-template-columns:1fr;gap:17px;padding-top:26px;padding-bottom:30px}.site-footer p{max-width:60ch}.results-footnote{font-size:11px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{body{font-size:11pt;background:white;color:#111}.wrap{max-width:none;padding-left:0;padding-right:0}.site-header{min-height:45px}.site-header nav,.intro,.measurement-panel,.guide-section,.form-actions,.secondary-button,.skip-link,.plan-tip,.hero-drawing{display:none!important}.workbench{display:none}.results-section{padding-top:15px}.results-heading-row h2{font-size:22pt}.results-summary{font-size:10pt}.product-row{grid-template-columns:90px 1fr 1fr;break-inside:avoid;padding:16px 0;gap:15px}.product-copy h3{font-size:14pt}.product-drawing{background:none}.fit-column{grid-column:auto}.product-note,.fit-detail,.product-specs{font-size:9pt}.fit-extra,.spec-caution,.price-note{font-size:8pt}.fit-status{border:1px solid #777;background:none!important;color:#111!important}.print-record{display:block;padding:12px 0;border-top:1px solid #aaa;font-size:10pt;break-inside:avoid}.print-record h3{font-size:13pt;margin-bottom:10px}.print-record p{margin-bottom:6px}.site-footer{display:block;padding-top:15px;padding-bottom:0;border-top:1px solid #aaa}.site-footer .wordmark{display:none}.site-footer p{margin-bottom:5px;max-width:none;font-size:8pt}.results-footnote{font-size:8pt}.manufacturer-link{font-size:8pt}.product-drawing svg{height:110px}.results-heading-row{display:block}a{color:#111}.step-label{font-size:9pt}}

.shipping-note{font-size:11px;line-height:1.55;color:var(--muted);margin:8px 0 11px}.shipping-note strong{color:var(--ink)}[hidden]{display:none!important}

.dimension-basis{display:block;font-size:11px;font-weight:650;margin-bottom:5px;color:var(--muted)}.pack-comparison-note{font-size:12px;line-height:1.55;color:var(--muted);border-top:1px solid var(--line);padding-top:10px;margin:12px 0 0}.pack-comparison-note strong{color:var(--ink)}

.faq-section{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px;padding-top:10px;padding-bottom:75px}.faq-section>div>p{font-size:14px;color:var(--muted);max-width:34ch}.faq-list details{border-bottom:1px solid var(--line);padding:19px 0}.faq-list details:first-child{padding-top:0}.faq-list summary{font-size:15px;font-weight:650;cursor:pointer}.faq-list p{font-size:13px;line-height:1.65;color:var(--muted);margin:15px 0 0}.footer-details nav{display:flex;flex-wrap:wrap;gap:7px 15px;margin-top:9px;font-size:11px}.footer-details p{margin:0}@media(max-width:850px){.faq-section{gap:40px}}@media(max-width:640px){.faq-section{display:block;padding-top:0;padding-bottom:45px}.faq-section h2{font-size:29px}.faq-section>div>p{margin-bottom:25px;max-width:45ch}.faq-list summary{font-size:14px}}@media print{.faq-section,.footer-details nav{display:none!important}}
