:root{color-scheme:dark;--bg:#1a1714;--panel:#25211d;--line:#484038;--muted:#c0b9ae;--copper:#c08b5c;--on-accent:#000;--cream-link:#80552f;--white:#f7f2e8;font-family:Arial,Helvetica,sans-serif;color:var(--white);background:var(--bg)}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-underline-offset:5px}button,input,select{font:inherit}a,button,input,select,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--copper);outline-offset:5px}header,main,footer{max-width:1240px;margin:auto}header{padding:30px 40px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:24px}.brand{display:flex;align-items:center;font-size:22px;font-weight:800;letter-spacing:1px;text-decoration:none}.brand>span:not(.brand-icon){color:var(--copper)}.brand-icon{display:block;width:120px;height:120px;object-fit:contain;padding:0;border-radius:0;margin-right:16px;flex-shrink:0;background:transparent}nav{display:flex;gap:30px}nav a{font-size:14px;text-decoration:none;color:var(--muted);padding:12px 0}nav a:hover,nav a[aria-current]{color:var(--copper)}main{padding:0 40px 80px}.hero{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:18px;min-height:590px}.hero img{width:100%;height:auto;mix-blend-mode:lighten;border-radius:16px}.eyebrow,.number{font-size:11px;font-weight:700;letter-spacing:2px;color:var(--copper)}h1{font-size:clamp(38px,5.6vw,70px);line-height:1.04;letter-spacing:-2.8px;margin:22px 0}h2{font-size:28px;letter-spacing:-.8px}h3{font-size:24px;letter-spacing:-.6px}.lede{font-size:19px;line-height:1.6;color:var(--muted);max-width:390px;margin:24px 0 30px}.button{display:inline-flex;justify-content:space-between;align-items:center;gap:35px;background:var(--copper);color:var(--on-accent);border:0;border-radius:7px;padding:17px 22px;text-decoration:none;font-weight:700;min-height:48px}.button:hover{background:#d4a477}.text-link{display:block;margin:23px 0;font-size:14px}.fine{font-size:12px;color:var(--muted);line-height:1.6}.section{border-top:1px solid var(--line);padding-top:36px}.section-heading{margin-bottom:30px}.section-heading h2{margin:12px 0}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{border:1px solid var(--line);border-radius:10px;background:var(--panel);padding:28px;text-decoration:none}.card:hover{border-color:var(--copper)}.card p{font-size:15px;line-height:1.65;color:var(--muted)}.card h2{font-size:23px}.arrow{display:block;color:var(--copper);font-size:13px;margin-top:28px}.page-heading{padding:56px 0 32px;max-width:800px}.page-heading h1{font-size:clamp(38px,5vw,56px)}.page-heading>p:last-child{color:var(--muted);line-height:1.7}.calculator{display:grid;grid-template-columns:1.3fr 1fr;gap:24px;align-items:start}.panel{padding:30px;background:var(--panel);border:1px solid var(--line);border-radius:12px}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:20px}.panel-heading h2{margin:0}.compact{max-width:180px}label{display:block;font-size:13px;line-height:1.6;margin-bottom:18px}label>span{color:var(--muted);font-size:11px}input,select{width:100%;display:block;padding:12px 14px;min-height:48px;border:1px solid #61665e;border-radius:6px;background:#191c19;color:var(--white);margin-top:7px}input:invalid:not(:focus){border-color:#de977c}.fields{display:grid;grid-template-columns:1fr 1fr;gap:20px}.results{padding:35px;border-radius:12px;background:#2b2d25;border:1px solid #686650}.result-label{font-size:15px;color:#d0d0c3;margin-top:30px}.result{font-size:76px;letter-spacing:-3px;font-weight:600;font-variant-numeric:tabular-nums;line-height:1.15;color:var(--copper)}.result small{font-size:20px;letter-spacing:0;font-weight:400}.result.secondary{font-size:46px;letter-spacing:-1.5px}.rule{height:1px;background:#606152;margin-top:27px}.results>p:not(.eyebrow){line-height:1.65}.results>a{display:inline-block;margin-top:20px;color:var(--copper)}#error{color:#ffd0b7}.note{max-width:800px;padding:24px 0;line-height:1.8;color:var(--muted)}.note h2{color:var(--white)}details{border-top:1px solid var(--line);padding:17px 0}summary{cursor:pointer;min-height:30px;line-height:1.8}details .fields{margin-top:20px}.text-button{background:none;border:0;color:var(--copper);padding:10px 0;cursor:pointer}.filters{display:grid;grid-template-columns:2fr 1fr;gap:20px;max-width:800px}.style-grid h2{font-size:22px}.style-grid .button{font-size:13px;gap:16px;margin-top:12px}.guide{max-width:850px}.guide details{padding:23px 0}.guide summary{font-size:21px}.guide .number{margin:0 25px 0 10px}.guide p{line-height:1.8;color:var(--muted);max-width:700px;padding-left:57px}footer{border-top:1px solid var(--line);padding:35px 40px;color:var(--muted);display:grid;grid-template-columns:1fr auto;gap:12px;font-size:12px}footer p{margin:0;grid-row:2}footer div{display:flex;gap:25px;grid-row:1;grid-column:2}footer small{grid-column:2;grid-row:2}.skip{position:absolute;top:-100px;padding:15px;background:var(--copper);color:var(--on-accent);z-index:10}.skip:focus{top:0}@media(max-width:760px){header{padding:18px 22px;align-items:start;flex-direction:column;gap:12px}nav{gap:22px;flex-wrap:wrap}nav a{font-size:13px;padding:10px 0}main{padding:0 22px 45px}.hero{grid-template-columns:1fr;gap:0;padding-top:30px;min-height:0}.hero img{max-width:450px;justify-self:center}.hero h1{font-size:54px}.hero .lede{font-size:17px}.cards{grid-template-columns:1fr}.calculator{grid-template-columns:1fr}.page-heading{padding-top:32px}.panel,.results{padding:22px}.panel-heading{align-items:start}.panel-heading h2{font-size:23px}.fields{gap:14px}.filters{grid-template-columns:1fr;gap:0}.guide summary{font-size:18px}.guide .number{margin-right:12px}.guide p{padding-left:0}footer{padding:28px 22px}.result{font-size:66px}.section{padding-top:24px}.card{padding:24px}}@media(prefers-reduced-motion:no-preference){a,button{transition:background .15s,border-color .15s}}
.muted{color:var(--muted);line-height:1.7}.equipment-intro{display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:center;padding:60px 0}.equipment-intro h1{font-size:clamp(42px,5.3vw,66px)}.equipment-feature{background:#eeeae1;border-radius:14px;overflow:hidden;position:relative;padding:16px}.equipment-feature img{display:block;width:100%;height:370px;object-fit:contain;mix-blend-mode:multiply}.equipment-feature span{display:block;color:#55554d;font-size:10px;letter-spacing:2px;padding:15px;text-align:center}.editorial-strip{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:22px 0;color:var(--muted);font-size:11px;letter-spacing:1.5px}.product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.product-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column}.product-photo{display:block;background:#f2f0eb;padding:24px;overflow:hidden}.product-photo img{width:100%;height:230px;object-fit:contain;display:block;mix-blend-mode:multiply}.product-copy{padding:24px;display:flex;flex-direction:column;flex:1}.product-copy .eyebrow{font-size:9px;letter-spacing:1.4px;line-height:1.7}.product-copy h2{font-size:23px;line-height:1.2;margin:10px 0}.product-copy>p:not(.eyebrow){font-size:14px;line-height:1.7;color:var(--muted);flex:1}.product-copy details{font-size:13px;margin:14px 0 0}.product-copy details p{color:var(--muted);line-height:1.7}.product-link{display:flex;justify-content:space-between;text-decoration:none;color:var(--copper);font-size:14px;padding:14px 0 0}.product-link:hover{text-decoration:underline}.home-equipment{margin-top:55px}.split-note{display:grid;grid-template-columns:1fr 1fr;gap:65px;padding:55px 0 30px;margin-top:40px;border-top:1px solid var(--line)}.split-note h2{font-size:36px;line-height:1.16}.split-note>div>p:not(.eyebrow){color:var(--muted);line-height:1.8}.reading-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:30px}.reading-grid article{border-top:1px solid var(--line);padding:25px 0}.reading-grid h2{font-size:25px}.reading-grid p{color:var(--muted);line-height:1.8;max-width:480px}@media(max-width:900px){.product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.equipment-intro{gap:30px}.equipment-feature img{height:300px}}@media(max-width:600px){.equipment-intro{grid-template-columns:1fr;padding:35px 0;gap:30px}.equipment-feature img{height:300px}.product-grid,.reading-grid,.split-note{grid-template-columns:1fr}.editorial-strip{flex-direction:column;gap:15px}.split-note{gap:0;padding-top:28px}.product-photo img{height:260px}.split-note h2{font-size:30px}.home-equipment{margin-top:35px}.product-copy .eyebrow{font-size:10px}}
.parts-nav{display:flex;flex-wrap:wrap;gap:10px;margin:25px 0 10px}.parts-nav a{border:1px solid var(--line);border-radius:6px;padding:12px 16px;color:var(--white);font-size:13px;background:var(--panel)}.parts-nav a:hover{border-color:var(--copper);color:var(--copper)}.parts-section{padding-top:36px;margin-top:25px;border-top:1px solid var(--line);scroll-margin-top:24px}.parts-heading{display:flex;gap:22px;align-items:baseline;margin-bottom:24px}.parts-heading h2{margin:0}.parts-heading p{margin-bottom:0}.parts-count{margin-left:auto;white-space:nowrap;color:var(--muted);font-size:12px}.product-copy h3{font-size:23px;line-height:1.2;margin:10px 0}.product-copy .product-sku{font-family:monospace;font-size:12px;color:var(--copper);flex:0;margin:4px 0 10px}@media(max-width:600px){.parts-nav{gap:8px}.parts-nav a{font-size:12px;padding:12px}.parts-heading{gap:12px}.parts-heading h2{font-size:24px}.parts-count{display:none}.parts-section{padding-top:28px}}
.product-text-cover{height:278px;padding:35px;display:flex;flex-direction:column;justify-content:center;gap:20px;background:#343d36;color:#efede2;border-bottom:1px solid var(--line)}.product-text-cover span{font-size:11px;letter-spacing:2px}.product-text-cover strong{font-size:50px;letter-spacing:-2px}

.hose-guide{margin:0 0 32px;padding:24px;border:1px solid var(--line);border-radius:12px;background:var(--panel);font-size:16px;line-height:1.7}.hose-guide h3{margin-top:0}.hose-guide p{color:var(--muted);max-width:900px}.hose-guide strong{color:var(--white)}.hose-guide a{color:var(--copper)}.hose-guide summary{font-weight:600}.hose-guide details:last-child{font-size:14px}

.planning-copy h3{margin:30px 0 8px;padding-left:57px;font-size:21px}.planning-copy a{text-underline-offset:3px}.planning-copy .fine{font-size:14px}@media(max-width:600px){.planning-copy h3{padding-left:0}}

.build-gallery{display:grid;grid-template-columns:1fr 1fr;gap:28px}.build-gallery figure{margin:0;background:var(--panel,#222624);border:1px solid var(--line,#39403b);border-radius:14px;overflow:hidden}.build-gallery img{display:block;width:100%;height:auto}.build-gallery figcaption{padding:24px}.build-gallery h3{margin:0 0 12px}.build-gallery p{line-height:1.7;color:var(--muted)}.build-gallery .build-feature{grid-column:1/-1;display:grid;grid-template-columns:1.2fr 1fr;align-items:center}.build-feature img{max-height:640px;object-fit:contain}@media(max-width:700px){.build-gallery{grid-template-columns:1fr}.build-gallery .build-feature{display:block}.build-gallery figcaption{padding:20px}}

[hidden]{display:none!important}.calculator-start{margin-bottom:32px}.calculator-start .button{font-size:20px;padding:18px 28px}.calculator-start .text-button{display:block;margin-top:36px}

.guide-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 30px;padding:14px;background:var(--panel,#222624);border-radius:14px}.guide-tabs button{font:inherit;font-weight:650;padding:12px 16px;color:var(--text,#f5f2e9);background:transparent;border:1px solid var(--line,#51554e);border-radius:8px;cursor:pointer}.guide-tabs button[aria-selected="true"]{background:var(--copper);color:var(--on-accent);border-color:var(--copper)}.guide-tabs button:focus-visible{outline:3px solid #f5d4b9;outline-offset:3px}.guide-step{scroll-margin-top:24px}.guide-step>h2{font-size:26px;line-height:1.35}.guide-step .planning-copy{padding-bottom:24px}@media(max-width:600px){.guide-tabs{gap:6px;padding:10px}.guide-tabs button{flex:1 1 42%;padding:11px 8px;font-size:15px}.guide-step>h2{font-size:23px}}

/* Folio tabs share a baseline; narrow screens scroll the tab strip. */
.guide-tabs{position:relative;flex-wrap:nowrap;gap:5px;padding:0 2px;margin-bottom:30px;background:transparent;border-radius:0;border-bottom:2px solid var(--copper);overflow-x:auto;align-items:stretch;scrollbar-width:thin;scrollbar-color:#777d77 #222624}
.guide-tabs button{flex:0 0 auto;margin:0;padding:14px 17px;border:1px solid #626861;border-bottom:0;border-radius:12px 12px 0 0;background:#363c37;color:#d5d8d3;white-space:nowrap;font-size:16px}
.guide-tabs button:hover{background:#495149;color:#fff}
.guide-tabs button[aria-selected="true"]{background:var(--copper);color:var(--on-accent);border-color:var(--copper)}
.guide-tabs button:focus-visible{outline:2px solid #fff;outline-offset:-5px}
@media(max-width:600px){.guide-tabs{gap:4px;padding:0 2px}.guide-tabs button{flex:0 0 auto;padding:13px 15px;font-size:15px}}

.style-picker-link{margin-top:16px;margin-bottom:12px;text-align:center;line-height:1.4}

.equipment-group .parts-section{margin-top:32px}.equipment-group>.parts-nav{margin:0 0 24px}.equipment-group .parts-heading{grid-template-columns:1fr auto}.hose-reference{padding:18px 22px;margin-bottom:26px;border:1px solid var(--line,#51554e);border-radius:10px}.hose-reference>summary{font-size:18px;font-weight:650;cursor:pointer}.equipment-tabs{margin-bottom:20px}.equipment-group .product-photo img{max-height:270px;object-fit:contain}.equipment-group .product-text-cover{min-height:220px}.equipment-group .parts-section{scroll-margin-top:24px}

.coupler-table{overflow-x:auto;margin:24px 0}.coupler-table table{width:100%;border-collapse:collapse;min-width:610px;text-align:left}.coupler-table th,.coupler-table td{padding:18px;line-height:1.6;border-bottom:1px solid var(--line);vertical-align:top}.coupler-table thead{background:var(--panel);color:var(--copper)}.coupler-table tbody th{width:24%}.coupler-table td{color:var(--muted)}

/* Homepage: calculator first, followed by three practical routes. */
.home-hero{min-height:500px;grid-template-columns:1.1fr 1fr;gap:28px;padding:40px 0 30px}.home-hero h1{font-size:clamp(38px,4.3vw,60px);line-height:1.08;letter-spacing:-2.2px}.home-hero h1 span{color:var(--copper)}.home-hero .lede{max-width:510px;font-size:18px;line-height:1.65}.home-style-link{max-width:430px;line-height:1.6;margin-top:24px}.home-art{min-width:0}.home-balance{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:center;gap:26px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px 0}.home-balance p{margin:9px 0 0;font-size:14px;line-height:1.5;color:var(--muted)}.balance-arrow{color:#70766b;font-size:22px}.home-paths{padding-top:52px}.home-path{display:flex;flex-direction:column;padding:28px}.home-path h3{font-size:26px;line-height:1.2;margin:20px 0 8px}.home-path p{margin-bottom:24px}.home-path .arrow{margin-top:auto;font-weight:700}.home-close{margin-top:44px;padding-top:26px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:24px;align-items:center}.home-close p{color:var(--muted);font-size:15px}.home-close a{font-size:14px;color:var(--copper);white-space:nowrap}.home-page{padding-bottom:44px}
@media(max-width:760px){.home-hero{grid-template-columns:1fr;gap:0;padding:34px 0 20px;min-height:0}.home-hero .lede{max-width:560px}.home-art{max-width:420px;margin:0 auto}.home-hero img{max-height:245px;object-fit:contain}.home-balance{gap:16px;grid-template-columns:1fr;padding:24px 0}.balance-arrow{display:none}.home-balance .eyebrow{font-size:10px}.home-balance p{margin-top:5px}.home-paths{padding-top:34px}.home-paths .cards{grid-template-columns:1fr}.home-path h3 br{display:none}.home-path h3 br::after{content:' '}.home-close{display:block}.home-close p{line-height:1.6}.home-close a{display:inline-block;margin-top:8px}}

.learn-intro{padding:56px 0 32px;max-width:880px}.learn-intro h1{font-size:clamp(42px,5vw,64px)}.learn-intro .lede{max-width:790px}.learn-actions{display:flex;align-items:center;gap:26px;flex-wrap:wrap}.learn-copy{max-width:820px;line-height:1.75;color:var(--muted)}.learn-section{margin-top:48px}.system-figure{margin:28px 0;background:#1c211f;border:1px solid var(--line);border-radius:16px;padding:20px}.system-figure svg{display:block;width:100%;height:auto;font:17px Arial,sans-serif}.system-figure figcaption{font-size:13px;line-height:1.6;color:var(--muted)}.gas-key{color:#83bfd1;margin-right:18px}.beer-key{color:var(--copper);margin-right:18px}.learn-inset{background:#2b2d25;border-left:3px solid var(--copper);padding:24px 28px;margin:28px 0;border-radius:0 10px 10px 0}.learn-inset h3{margin:0 0 14px}.learn-inset p,.learn-inset li{line-height:1.7;color:var(--muted)}.learn-inset a,.learn-deepdives a,.component-grid a{color:var(--copper);font-size:14px}.component-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start}.component-grid details,.learn-deepdives details{border:1px solid var(--line);border-radius:10px;padding:22px;background:var(--panel)}.component-grid summary,.learn-deepdives summary{font-size:19px;font-weight:700;cursor:pointer;line-height:1.5}.component-grid summary span{display:block;font-size:14px;font-weight:400;color:var(--muted);margin-top:6px}.component-grid p,.learn-deepdives p{font-size:16px;line-height:1.7;color:var(--muted)}.learn-deepdives{display:grid;gap:12px}.learn-choices{display:grid;grid-template-columns:1fr 1fr;gap:24px}.learn-choice{padding:28px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}.learn-choice p,.learn-choice li{line-height:1.7}.learn-choice>p:not(.eyebrow),.learn-choice li{color:var(--muted)}.learn-choice li{margin-bottom:10px}.learn-price{padding:20px;background:#30352b;border-radius:8px}.learn-price>a{color:var(--copper);line-height:1.6}.learn-choice h3{font-size:30px;line-height:1.2}.learn-page section{scroll-margin-top:24px}
@media(max-width:800px){header{flex-wrap:wrap}header nav{flex-wrap:wrap;gap:8px 20px}.component-grid,.learn-choices{grid-template-columns:1fr}.system-figure{padding:12px;overflow-x:auto}.system-figure svg{min-width:640px}.learn-intro{padding-top:34px}.learn-section{margin-top:32px}.learn-inset,.learn-choice{padding:22px}.learn-page .parts-nav{flex-wrap:wrap}}

/* Readable lessons and contained comparison tables. */
.learn-page p,.learn-page li{line-height:1.75}.learn-page h4{font-size:17px;line-height:1.45;margin:24px 0 10px}.learn-page strong{color:var(--white)}.component-grid details[open]{grid-column:1/-1}.component-grid details[open]>p,.learn-deepdives details>p{max-width:850px}.component-grid details>a{display:inline-block;margin-top:10px;line-height:1.7}.learn-table{overflow-x:auto;margin:20px 0;border:1px solid var(--line);border-radius:8px}.learn-table table{width:100%;border-collapse:collapse;min-width:560px;font-size:15px;line-height:1.65}.learn-table th,.learn-table td{padding:14px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}.learn-table th{color:var(--white)}.learn-table td{color:var(--muted)}.learn-table thead{background:#30352b}.learn-table tr:last-child>*{border-bottom:0}.system-figure figcaption .gas-key,.system-figure figcaption .beer-key{display:inline-block;margin-top:8px}.learn-page summary{word-spacing:normal;letter-spacing:normal}.learn-page .fine a{font-size:inherit}
.component-grid>details,.learn-deepdives>details{min-width:0}.learn-table{max-width:100%}.learn-page .component-grid .fine,.learn-page .learn-deepdives .fine{font-size:12px;line-height:1.6}

/* Equipment: a part type with comparable, individually identified shop options. */
.part-types{display:grid;gap:24px}.part-type{border:1px solid var(--line);border-radius:12px;background:var(--panel);overflow:hidden;scroll-margin-top:24px}.type-heading{padding:24px 28px;background:rgba(192,139,92,.07);border-bottom:1px solid var(--line)}.type-heading h3{font-size:24px;line-height:1.25;margin:0 0 10px}.type-heading p{color:var(--muted);line-height:1.65;margin:0;max-width:780px}.offer-count{display:block;color:var(--copper);font-size:12px;margin-top:12px}.seller-offers{list-style:none;padding:0;margin:0}.seller-offer{display:flex;gap:24px;padding:24px 28px;align-items:flex-start}.seller-offer+.seller-offer{border-top:1px solid var(--line)}.offer-photo{width:112px;height:112px;flex:0 0 112px;object-fit:contain;background:#f2f0eb;padding:10px;border-radius:8px}.offer-copy{min-width:0;flex:1}.offer-seller{font-size:12px;color:var(--copper);margin:0 0 8px;line-height:1.6}.offer-copy h4{font-size:18px;margin:0 0 8px;line-height:1.4}.offer-copy>p:not(.offer-seller),.offer-copy details{font-size:14px;color:var(--muted);line-height:1.7}.offer-copy>p{margin:0 0 10px}.offer-copy details{margin-top:10px}.offer-copy summary{cursor:pointer;color:var(--white);padding:4px 0}.offer-copy .product-link{display:inline-block;padding:12px 0 4px;font-weight:600;line-height:1.6}.offer-copy details p{max-width:800px}.part-type:target{border-color:var(--copper)}
@media(max-width:600px){.type-heading{padding:20px}.type-heading h3{font-size:22px}.seller-offer{padding:20px;gap:14px;flex-wrap:wrap}.offer-photo{width:80px;height:80px;flex-basis:80px}.offer-copy{flex-basis:100%}.offer-copy .product-link{font-size:14px}.part-types{gap:20px}}

/* Scale the header wordmark to the freestanding kegerator artwork. */
header .brand{font-size:40px;letter-spacing:1.5px}
@media(max-width:600px){header .brand{font-size:32px;letter-spacing:1px}.brand-icon{margin-right:10px}}

/* Approved shared app/website brand, September 14, 2026. */
@media(max-width:360px){header .brand{font-size:28px}.brand-icon{width:100px;height:100px}}