:root{--navy:#102e40;--teal:#087f87;--ink:#183747;--muted:#5b727f;--line:#d6e1e5;--pale:#edf5f5;--paper:#fff;--bg:#f4f7f8;--amber:#895720}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.55 Arial,Helvetica,sans-serif}button,input,select,textarea{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}a{color:var(--teal)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #eba537;outline-offset:4px}[hidden]{display:none!important}.skip-link{position:fixed;z-index:20;top:8px;left:8px;background:white;padding:12px;transform:translateY(-160%)}.skip-link:focus{transform:none}.site-links{display:flex;gap:28px;flex-wrap:wrap;padding:12px 4%;background:#19312f;font-size:13px}.site-links a{color:white;text-decoration:none}.site-links a:last-child{margin-left:auto}.site-links a:hover{text-decoration:underline}.masthead{background:var(--navy);color:white;padding:22px 4%;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{color:white;font-size:27px;letter-spacing:.08em;font-weight:800;text-decoration:none;line-height:1.15}.brand span{display:block;font-size:10px;letter-spacing:.25em;color:#8ee0df;margin-top:8px}.partner{text-align:right;font-size:12px;color:#c3d6df}.partner strong{display:block;color:white;font-size:18px}.notice{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 15px;padding:8px 4%;background:#dae9ec;color:#234b5b;font-size:12px}.notice .tp-review-label{width:100%;margin:0;font-size:11px}.wrap{max-width:1550px;margin:auto;padding:38px 4% 28px}.intro{display:flex;gap:50px;justify-content:space-between;align-items:center;margin-bottom:32px}.eyebrow{font-size:10px;letter-spacing:.17em;font-weight:700;color:var(--teal);margin:0 0 12px}.intro h1{font-size:clamp(32px,3.3vw,51px);line-height:1.08;letter-spacing:-.04em;margin:0 0 18px;font-weight:600}.intro-copy{max-width:670px;margin:0;color:var(--muted);font-size:16px}.intro-stats{display:flex;gap:26px;flex-shrink:0}.intro-stats div{display:flex;flex-direction:column;border-left:1px solid #c8d9dd;padding-left:20px;min-width:90px}.intro-stats strong{font-size:36px;line-height:1.2;font-weight:500}.intro-stats span{font-size:11px;color:var(--muted);max-width:90px;margin-top:7px}h2{font-size:27px;line-height:1.2;letter-spacing:-.025em;margin:0 0 12px}h3{font-size:19px;line-height:1.25;margin:0 0 8px}.tabs{display:flex;gap:32px;border-bottom:1px solid var(--line);margin-bottom:28px;overflow-x:auto}.tab{border:0;border-bottom:3px solid transparent;background:none;color:var(--muted);font-size:14px;font-weight:700;white-space:nowrap;padding:12px 0 16px}.tab[aria-selected=true]{color:var(--teal);border-bottom-color:var(--teal)}.layout{display:grid;grid-template-columns:minmax(0,1fr) 318px;gap:28px;align-items:start}.catalog-tools{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:18px}.catalog-tools label{font-size:11px;text-transform:uppercase;letter-spacing:.06em;font-weight:700;color:var(--muted)}.catalog-tools select{display:block;border:1px solid #bdcfd6;border-radius:5px;background:white;color:var(--ink);margin-top:7px;padding:9px 28px 9px 12px;min-width:240px;font-size:14px;text-transform:none;letter-spacing:0;font-weight:400}.count{font-size:12px;color:var(--muted);padding-bottom:10px}.products{display:grid;gap:24px}.product{border:1px solid var(--line);border-radius:12px;background:white;overflow:hidden}.product-top{display:flex;justify-content:space-between;align-items:start;gap:12px;padding:24px 25px 15px}.product-top h3{font-size:24px;letter-spacing:-.03em;margin:0 0 7px}.product-top .eyebrow{margin-bottom:7px}.status{display:inline-block;background:#fff3e2;border:1px solid #ecd6b4;color:var(--amber);border-radius:5px;font-size:11px;padding:4px 8px;line-height:1.4}.product-top .status{max-width:145px;text-align:center;flex-shrink:0}.sku{font:12px/1.5 Consolas,monospace;overflow-wrap:anywhere;color:var(--teal)}.pair-gallery{background:#fbfcfc;border-top:1px solid #edf1f2;border-bottom:1px solid #edf1f2;margin-top:2px}.pair-images{display:grid;grid-template-columns:1fr 1fr;gap:2px;padding:8px 16px 12px}.part{margin:0;min-width:0;text-align:center}.part img{display:block;width:100%;height:230px;object-fit:contain;mix-blend-mode:multiply}.part figcaption{font-size:13px;color:var(--ink);font-weight:600}.part figcaption span{display:block;color:var(--muted);font-size:11px;font-weight:400}.gallery-controls{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:0 24px 18px}.face-switch{display:flex;gap:3px;border:1px solid #cadcde;border-radius:6px;padding:3px;background:white}.face-switch button{border:0;background:transparent;border-radius:3px;padding:6px 10px;color:var(--muted);font-size:12px}.face-switch button[aria-pressed=true]{background:var(--teal);color:white}.text-button{border:0;background:none;color:var(--teal);font-size:12px;text-decoration:underline;text-underline-offset:3px;padding:5px 0}.intro-link{font-size:14px;margin-top:13px;font-weight:600}.product-context{padding:19px 25px 22px}.tube-row{display:flex;align-items:center;gap:17px}.tube-row img{width:107px;height:93px;object-fit:contain;border-radius:7px;border:1px solid var(--line);background:#f5f7f7}.tube-copy{flex:1;min-width:0}.tube-copy .eyebrow{margin-bottom:4px;font-size:9px}.tube-copy strong{font-size:14px}.tube-copy p{margin:4px 0 0;font-size:12px;color:var(--muted)}.product-action-row{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-top:17px;padding-top:17px;border-top:1px solid var(--line)}.product-action-row>span{font-size:12px;color:var(--muted);max-width:270px}.button{display:inline-block;line-height:1.4;border:1px solid #bacfd3;border-radius:6px;background:white;color:var(--ink);font-size:13px;font-weight:600;text-decoration:none;padding:10px 14px;text-align:center}.button:hover{background:#eef5f7}.button.primary{background:var(--teal);border-color:var(--teal);color:white}.button.primary:hover{background:#056a71}.button:disabled{opacity:.45;cursor:default}.full{width:100%}.actions{display:flex;gap:10px;flex-wrap:wrap}.dimensions{margin-top:15px;border-top:1px solid #edf1f2;padding-top:11px}.dimensions summary{color:var(--teal);font-size:12px;cursor:pointer;font-weight:600}.dimensions p,.dimensions-caption{font-size:11px;color:var(--muted);margin:9px 0}.dimension-table{width:100%;border-collapse:collapse;font-size:12px;margin:10px 0}.dimension-table th{text-align:left;font-weight:600;color:var(--muted);font-size:11px}.dimension-table th,.dimension-table td{padding:7px 9px;border-bottom:1px solid #edf1f2}.dimension-table th:first-child,.dimension-table td:first-child{padding-left:0}.tube-specs{display:flex;flex-wrap:wrap;gap:8px 20px;margin:14px 0 8px;padding:12px 0;border-top:1px solid #edf1f2;border-bottom:1px solid #edf1f2}.tube-specs div{min-width:75px}.tube-specs dt{font-size:10px;color:var(--muted)}.tube-specs dd{font-size:13px;font-weight:600;margin:3px 0 0}.tube-spec-note{color:var(--muted);font-size:10px;margin:5px 0}.cad-note{font-size:12px;color:var(--muted);line-height:1.7;margin:20px 0 0}.quote-sidebar{padding-top:78px;position:sticky;top:15px}.cart{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:white}.cart-head{background:#fafdfe;padding:23px 21px 19px;border-bottom:1px solid var(--line)}.cart-head .eyebrow{font-size:9px;margin-bottom:9px}.cart-head h2{font-size:25px;margin-bottom:7px}.cart-head p:last-child{margin:0;color:var(--muted);font-size:12px}.cart-content{padding:18px 21px}.cart-empty{font-size:13px;color:var(--muted);margin:3px 0 23px}.cart-total{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:16px;font-size:13px}.cart-total strong{font-size:25px;line-height:1}.cart-sub{font-size:11px;color:var(--muted);margin:8px 0 20px}.cart-row{padding:14px 0;border-bottom:1px solid var(--line)}.cart-row:first-child{padding-top:0}.cart-row:last-child{border-bottom:0;margin-bottom:10px}.cart-row h3{font-size:14px;margin-bottom:3px}.row-sku{font:10px/1.5 Consolas,monospace;color:var(--muted);overflow-wrap:anywhere}.row-controls{display:flex;align-items:center;gap:8px;margin-top:9px;font-size:12px}.qty{width:72px;padding:6px;border:1px solid #bed0d5;border-radius:4px;color:var(--ink)}.remove{margin-left:auto;font-size:11px;border:0;background:none;color:var(--muted);text-decoration:underline}.feedback{min-height:19px;font-size:11px;color:var(--teal);margin:8px 0}.cart-note{background:#eaf3f3;color:#4f6d78;font-size:11px;margin:0;padding:16px 21px;line-height:1.7}.cart-note strong{color:var(--ink)}.kit-note{background:var(--navy);color:white;padding:23px 21px;margin-top:18px;border-radius:9px}.kit-note .eyebrow{color:#a1d1d4;font-size:9px;letter-spacing:.1em}.kit-note h3{font-size:20px}.kit-note>p:last-child{font-size:12px;color:#ccdde3;margin:9px 0 0}.family-message,.custom-panel{border:1px solid var(--line);background:white;border-radius:10px;padding:30px}.family-message p{color:var(--muted);font-size:14px}.family-message .eyebrow{color:var(--teal);font-size:10px}.warning{border-left:3px solid #b77b2f;padding:14px 17px;background:#fff4e3;color:#745222;font-size:13px;margin:19px 0}.section-heading{max-width:810px;margin-bottom:21px}.section-heading h2{font-size:35px}.section-heading p:last-child{color:var(--muted);margin:10px 0}.scope-note{background:#eaf2f3;border-radius:7px;padding:14px 18px;font-size:12px;color:#4b6c77;margin-bottom:24px}.tube-library{display:grid;grid-template-columns:repeat(3,1fr);gap:23px}.tube-reference{border:1px solid var(--line);background:white;border-radius:10px;overflow:hidden;display:flex;flex-direction:column}.tube-reference>img{display:block;width:100%;height:220px;object-fit:contain;background:#f8faf9;border-bottom:1px solid var(--line);padding:12px}.tube-ref-body{padding:21px}.tube-ref-body>h3{font-size:21px;letter-spacing:-.025em;margin-bottom:4px}.tube-size{font-size:12px;color:var(--muted);margin:0 0 17px}.variant{border-top:1px solid var(--line);padding-top:14px;margin-top:14px}.variant h4{margin:0 0 6px;font-size:14px}.variant .sku{display:block;font-size:11px;margin:6px 0 8px}.variant p{font-size:12px;color:var(--muted);margin:8px 0 12px}.variant .button{font-size:12px;padding:8px 10px;margin-top:11px}.variant .status{font-size:10px}.development-item{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:27px;border:1px dashed #97b3bc;border-radius:10px;margin-top:28px;background:#edf4f5}.development-item>div{max-width:780px}.development-item p:last-child{color:var(--muted);font-size:13px;margin:0}.development-item .button{flex-shrink:0}.custom-layout{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(240px,.7fr);gap:45px}.custom-panel>p:not(.eyebrow){font-size:14px;color:var(--muted)}.custom-panel h2{font-size:34px}.custom-panel .upload-note{font-size:11px!important}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:25px 0}.form-grid label{font-size:12px;font-weight:600}.form-grid input,.form-grid select,.form-grid textarea{display:block;width:100%;border:1px solid #bdcfd6;border-radius:5px;background:white;padding:10px;margin-top:7px;color:var(--ink);font-size:14px}.form-grid .wide{grid-column:1/-1}.form-note{color:var(--muted);font-size:12px;margin:13px 0 0}.request-steps{padding-top:14px}.request-steps>h3{font-size:23px}.request-steps ol{list-style:none;padding:0;counter-reset:steps}.request-steps li{counter-increment:steps;position:relative;padding-left:43px;margin:27px 0}.request-steps li:before{content:counter(steps);position:absolute;left:0;top:0;width:27px;height:27px;border-radius:50%;background:var(--teal);color:white;text-align:center;line-height:27px;font-size:13px;font-weight:bold}.request-steps h3{font-size:17px}.request-steps p{font-size:13px;color:var(--muted);margin:7px 0}.workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:19px;margin:28px 0}.workflow article{background:white;border:1px solid var(--line);border-radius:9px;padding:25px}.workflow article>span{font-size:39px;color:#86b5ba;line-height:1;display:block;margin-bottom:26px}.workflow h3{font-size:19px}.workflow p{font-size:13px;color:var(--muted);margin-bottom:0}.sku-guide{background:white;border:1px solid var(--line);border-radius:9px;padding:27px;display:flex;gap:50px;align-items:center;margin-top:26px}.sku-guide code{color:var(--teal);font-size:19px;overflow-wrap:anywhere}.sku-guide p{font-size:13px;color:var(--muted);margin:8px 0}.sku-guide .eyebrow{font-size:10px;color:var(--teal);margin-bottom:11px}.footer{display:flex;justify-content:space-between;gap:14px;border-top:1px solid var(--line);padding-top:20px;margin-top:35px;font-size:11px;color:var(--muted)}dialog{border:0;padding:0;border-radius:12px;max-height:92vh;width:min(950px,94vw);box-shadow:0 25px 80px #09273466;color:var(--ink)}dialog::backdrop{background:#0b2b3aaa}.dialog-head{display:flex;justify-content:space-between;gap:25px;align-items:start;background:var(--navy);color:white;padding:24px 28px}.dialog-head h2{font-size:24px;margin-bottom:7px}.dialog-head p{color:#c2d9df;font-size:12px;margin:0}.dialog-head .eyebrow{font-size:9px;color:#8ed0d4;margin-bottom:10px}.close{border:1px solid #7a98a8;border-radius:5px;color:white;background:none;padding:7px 12px;font-size:12px}.dialog-body{padding:25px 28px}.detail-tube{display:flex;align-items:center;gap:20px;border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:23px}.detail-tube img{width:125px;height:100px;object-fit:contain;border:1px solid var(--line);border-radius:6px}.detail-tube p{font-size:12px;color:var(--muted);margin:5px 0}.detail-faces{display:grid;grid-template-columns:1fr 1fr;gap:14px;background:#fbfcfc}.detail-faces figure{margin:0;text-align:center}.detail-faces img{height:260px;width:100%;object-fit:contain;mix-blend-mode:multiply}.detail-faces figcaption{font-size:12px;padding:5px 0 20px;color:var(--muted)}.detail-section-title{margin-top:23px;padding-top:16px;border-top:1px solid var(--line);font-size:18px}.summary{white-space:pre-wrap;overflow-wrap:anywhere;font:13px/1.7 Arial,Helvetica,sans-serif;background:#f2f7f8;border:1px solid var(--line);border-radius:5px;padding:19px;max-height:53vh;overflow:auto;margin:0}.dialog-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:18px}
.development-drawing{display:block;width:100%;max-width:580px;max-height:390px;object-fit:contain;background:white;border:1px solid var(--line);border-radius:6px;margin-top:18px}
.reset-request{margin-top:15px}.intro{margin-bottom:22px}.intro h1{font-size:clamp(31px,2.9vw,44px);margin-bottom:12px}.intro-copy{font-size:15px;max-width:650px}.intro-link{margin-top:8px}.wrap{padding-top:27px}.intro .eyebrow{margin-bottom:9px}
.quote-sidebar{position:static}
.gallery-actions{display:flex;align-items:center;gap:15px}.gallery-actions .button{font-size:12px;padding:7px 11px}.viewer-tools{display:flex;align-items:center;gap:15px;flex-wrap:wrap;margin:20px 0 12px}.viewer-tools span{font-size:12px;color:var(--muted)}.selected-pair-viewer{min-height:320px;background:#edf4f5;border:1px solid var(--line);border-radius:8px;padding:15px;color:var(--muted);font-size:13px}.selected-pair-viewer model-viewer{display:block;width:100%;height:420px;background:#edf4f5;border-radius:6px}.compact-family{padding:20px 24px;margin-top:20px}.compact-family h2{font-size:22px}.compact-family .warning{margin:12px 0;font-size:12px}.compact-family p{font-size:12px}.reference-only{display:block;color:var(--muted);font-size:11px;margin-top:8px}
@media(max-width:520px){.gallery-controls{align-items:flex-start}.gallery-actions{gap:8px;flex-direction:column;align-items:flex-end}.gallery-actions .button{font-size:11px}.selected-pair-viewer{min-height:250px;padding:8px}.selected-pair-viewer model-viewer{height:300px}}
@media(min-width:1500px){.part img{height:260px}}
@media(max-width:1150px){.intro-stats{gap:13px}.intro-stats div{min-width:70px;padding-left:13px}.intro-stats strong{font-size:30px}.intro{gap:26px}.layout{grid-template-columns:minmax(0,1fr) 285px;gap:20px}.part img{height:180px}.product-top{padding:21px 20px 15px}.product-top h3{font-size:21px}.product-context{padding:18px 20px}.product-top .status{max-width:110px}.tube-library{grid-template-columns:repeat(2,1fr)}.workflow{grid-template-columns:1fr 1fr}.sku-guide{gap:25px}.tabs{gap:24px}}
@media(max-width:850px){.intro{align-items:start;flex-direction:column;gap:25px}.intro h1{font-size:41px}.intro-stats{gap:30px}.intro-stats div{min-width:100px}.intro-stats span{max-width:none}.layout{grid-template-columns:1fr}.quote-sidebar{position:static;padding-top:0}.part img{height:245px}.product-top .status{max-width:170px}.custom-layout{grid-template-columns:1fr;gap:22px}.request-steps{padding:10px 20px}.sku-guide{display:block}.sku-guide>div+div{margin-top:19px}.footer{flex-direction:column;gap:6px}.site-links{gap:12px 22px}.site-links a:last-child{margin-left:0}.development-item{align-items:start;flex-direction:column;gap:18px}}
@media(max-width:520px){.wrap{padding:28px 5% 22px}.masthead{padding:22px 5%}.brand{font-size:22px}.brand span{font-size:8px}.partner{font-size:10px}.partner strong{font-size:15px}.site-links{font-size:11px;padding:10px 5%;gap:6px 18px}.notice{font-size:10px;padding:8px 5%}.intro h1{font-size:36px}.intro-copy{font-size:14px}.intro-stats{width:100%;justify-content:space-between;gap:10px}.intro-stats div{min-width:0;flex:1;padding-left:12px}.intro-stats strong{font-size:29px}.intro-stats span{font-size:10px;max-width:80px}.tabs{gap:23px;margin-bottom:23px}.tab{font-size:12px;padding-bottom:12px}.catalog-tools{align-items:start;flex-direction:column;gap:9px}.catalog-tools select{min-width:0;width:100%}.catalog-tools label{width:100%}.count{padding-bottom:0}.product-top{padding:20px 17px 14px;display:block}.product-top h3{font-size:23px}.product-top .status{margin-top:10px;max-width:none}.pair-images{padding:7px 8px 12px}.part img{height:160px}.gallery-controls{padding:0 15px 15px;gap:8px}.face-switch button{font-size:11px;padding:6px 8px}.gallery-controls .text-button{font-size:11px}.product-context{padding:16px 17px 18px}.tube-row{gap:13px}.tube-row img{width:82px;height:82px}.tube-copy strong{font-size:13px}.tube-copy p{font-size:11px}.product-action-row{align-items:start;flex-direction:column;gap:12px}.product-action-row .button{width:100%}.tube-library{grid-template-columns:1fr}.section-heading h2{font-size:30px}.section-heading p:last-child{font-size:14px}.custom-panel{padding:23px 19px}.custom-panel h2{font-size:29px}.form-grid{grid-template-columns:1fr}.form-grid .wide{grid-column:auto}.workflow{grid-template-columns:1fr}.workflow article{padding:23px}.workflow article>span{font-size:30px;margin-bottom:17px}.sku-guide{padding:23px 19px}.sku-guide code{font-size:17px}.dialog-head{padding:20px;gap:14px}.dialog-head h2{font-size:20px}.dialog-body{padding:20px}.detail-faces{gap:4px}.detail-faces img{height:155px}.detail-tube{gap:14px}.detail-tube img{width:85px;height:85px}.dimension-table th,.dimension-table td{padding:7px 5px;font-size:11px}.family-message{padding:24px 20px}.family-message h2{font-size:25px}}
@media(prefers-reduced-motion:no-preference){button,.button{transition:background-color .12s ease}}
@media print{.site-links,.masthead,.notice,.tabs,.catalog-tools,.quote-sidebar,.gallery-controls,.product-action-row,.footer,.skip-link,dialog{display:none!important}.wrap{padding:0}.intro-stats{display:none}.layout{display:block}.product{break-inside:avoid;margin-bottom:20px}.part img{height:160px}.intro h1{font-size:30px}.products{display:block}.dimension-table{font-size:11px}}

/* Catalog selling prices and quote selection totals. */
.pair-price{display:flex;align-items:baseline;flex-wrap:wrap;gap:5px 8px;margin:11px 0 0;color:var(--ink)}.pair-price strong{font-size:23px;line-height:1.3;color:var(--navy)}.pair-price span{font-size:12px;color:var(--muted)}.variant .pair-price{margin:10px 0 0}.variant .pair-price strong{font-size:20px}.catalog-price-note{font-size:12px;color:var(--muted);margin:0 0 18px}.row-pricing{display:flex;align-items:baseline;justify-content:space-between;gap:6px 12px;flex-wrap:wrap;margin-top:8px;font-size:11px;color:var(--muted)}.row-pricing strong{color:var(--ink);font-size:13px}.price-subtotal{gap:10px;align-items:baseline}.price-subtotal strong{font-size:20px;white-space:nowrap}.price-note{margin-bottom:18px}.dialog-body>.pair-price{margin:0 0 18px}