@font-face{font-family:Archivo Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/archivo-vietnamese-wght-normal-XAtsl5Q_.woff2) format("woff2-variations");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Archivo Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/archivo-latin-ext-wght-normal-C4zznr8T.woff2) format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Archivo Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/archivo-latin-wght-normal-E0tuGl4L.woff2) 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.917rem + .37vw, 1.25rem);--step-intro: clamp(1rem, .875rem + .556vw, 1.375rem);--step-trust: clamp(1.0625rem, .917rem + .648vw, 1.5rem);--step-h3: clamp(1.125rem, .875rem + 1.111vw, 1.875rem);--step-h2-chapter: clamp(1.875rem, 1.417rem + 2.037vw, 3.25rem);--step-h2: clamp(2.25rem, 1.667rem + 2.593vw, 4rem);--step-h1: clamp(2.625rem, 1.75rem + 3.889vw, 5.25rem);--track-label: .16em;--track-display: -.02em;--gutter: clamp(1.25rem, .85rem + 2.2vw, 3.5rem);--shell: 1480px;--section-y: clamp(4.5rem, 2.5rem + 7vw, 10rem);--header-h: 72px;--ease: cubic-bezier(.22, 1, .36, 1);--ease-out: cubic-bezier(.23, 1, .32, 1);--ease-in-out: cubic-bezier(.77, 0, .175, 1);--z-copy: 3;--z-header: 60}@media(max-width:860px){:root{--header-h: 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(pointer:fine){.header__link:hover:after{transform:scaleX(1)}}.header__end{display:flex;align-items:center;gap:6px}.header__call{display:inline-flex;align-items:center;gap:.55em;min-height:44px;padding:0 14px;border-radius:3px;background:var(--ink);color:#fff;font-size:.9375rem;font-weight:var(--weight-strong);white-space:nowrap;transition:background-color .24s var(--ease)}.header__call-number{display:none;font-variant-numeric:tabular-nums}.header__burger{display:grid;place-items:center;width:44px;height:44px;margin-right:-10px}.header__burger-lines{display:block;width:22px;height:9px;position:relative}.header__burger-lines i{position:absolute;left:0;width:100%;height:1px;background:var(--ink);transition:transform .3s var(--ease)}.header__burger-lines i:first-child{top:0}.header__burger-lines i:last-child{bottom:0}.header__burger-lines[data-open=true] i:first-child{transform:translateY(4px) rotate(45deg)}.header__burger-lines[data-open=true] i:last-child{transform:translateY(-4px) rotate(-45deg)}.menu{position:fixed;inset:var(--header-h) 0 0 0;background:var(--page);padding:clamp(1rem,4vw,2rem) var(--gutter) clamp(2rem,8vw,4rem);display:flex;flex-direction:column;justify-content:flex-start;gap:2rem;overflow-y:auto;visibility:hidden;transform:translateY(-100%);transition:transform .46s var(--ease),visibility 0s linear .46s}.menu[data-open=true]{visibility:visible;transform:translateY(0);transition:transform .46s var(--ease),visibility 0s}.menu__nav{display:flex;flex-direction:column}.menu__link{display:flex;align-items:center;min-height:56px;padding:.75rem 0;border-bottom:1px solid var(--line);font-size:clamp(1.5rem,6vw,1.75rem);font-weight:var(--weight-strong);line-height:1.15;letter-spacing:-.01em}.menu__link span{position:relative}.menu__link[aria-current=true] span:after{content:"";position:absolute;left:0;right:0;bottom:-9px;height:7px;border-block:1.5px solid var(--ink)}.menu__link[aria-current=true] span:before{content:"";position:absolute;left:-3px;right:-3px;bottom:-12px;height:13px;background:linear-gradient(90deg,var(--hot) 0 3px,transparent 3px calc(100% - 3px),var(--cold) calc(100% - 3px))}.menu__call{width:100%}@media(min-width:861px){.header__nav{display:flex}.header__burger,.menu{display:none}.header .brand__logo{height:48px}.header__call{padding:0 18px}.header__call-label{font-weight:500;opacity:.78}.header__call-number{display:inline}.header .brand__logo{transform-origin:left center;transition:transform .3s var(--ease)}.header.is-scrolled{height:64px}.header.is-scrolled:before{transform:translateY(-8px)}.header.is-scrolled .header__inner{transform:translateY(-4px);pointer-events:none}.header.is-scrolled .header__inner>*{pointer-events:auto}.header.is-scrolled .brand__logo{transform:scale(.8333)}}@media(hover:hover)and 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.action__body:after{left:1.5rem;right:1.5rem;bottom:16px}.text-action{display:inline-flex;align-items:center;gap:.6rem;min-height:44px;font-size:var(--step-label);font-weight:500;letter-spacing:var(--track-label);text-transform:uppercase;color:var(--ink)}.text-action__label{position:relative;padding-bottom:2px}.text-action__label:after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:var(--line);transition:background-color .34s var(--ease),transform .34s var(--ease);transform-origin:left}.text-action__arrow{display:grid;place-items:center;color:var(--muted);transition:transform .38s var(--ease),color .34s var(--ease)}.text-action--plain{font-size:clamp(1rem,.979rem + .093vw,1.0625rem);font-weight:var(--weight-ui);letter-spacing:0;text-transform:none}.text-action--plain .text-action__label{padding-bottom:3px}.text-action--plain .text-action__label:after{background:currentColor}@media(hover:hover)and (pointer:fine){.text-action:hover .text-action__label:after{background:var(--accent)}.text-action:hover .text-action__arrow{transform:translate(4px);color:var(--accent)}}.footer{border-top:1px solid var(--line);padding-block:clamp(2.5rem,6vw,4rem) clamp(1.75rem,4vw,2.5rem)}.footer__inner{display:grid;gap:clamp(1.75rem,4vw,3rem);grid-template-columns:1fr;align-items:start}.footer__scope{margin-top:1.25rem}.footer__nav{display:flex;flex-wrap:wrap;gap:0 1.6rem}.footer__nav a{font-size:var(--step-label);font-weight:500;letter-spacing:var(--track-label);text-transform:uppercase;color:var(--muted);min-height:44px;display:inline-flex;align-items:center;transition:color .24s var(--ease)}.footer__nav a:hover{color:var(--ink)}.footer__details{margin:0;display:grid;gap:.9rem}.footer__details dt{margin-bottom:.15rem}.footer__details dd{margin:0;color:var(--ink)}.footer__legal{color:var(--muted)}.footer__legal p{margin:0 0 .35rem}.footer__credit{margin-top:.65rem;font-size:var(--step-micro);color:var(--muted)}.footer__credit a{color:inherit;text-decoration:underline;text-decoration-color:transparent;text-underline-offset:3px;transition:color .18s var(--ease),text-decoration-color .18s var(--ease)}.footer__credit a:hover{color:var(--ink);text-decoration-color:currentColor}@media(max-width:599px){.footer__nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 1rem}}@media(min-width:861px){.footer__inner{grid-template-columns:1.5fr 1fr 1fr auto;gap:2rem}}.hero{position:relative;padding-top:var(--header-h)}.hero__stage{position:relative;display:flex;flex-direction:column;min-height:calc(100svh - var(--header-h))}.hero__art{flex:none;height:clamp(176px,47vw,220px);border-bottom:1px solid var(--line);overflow:hidden}.pipes{display:block;width:100%;height:100%;pointer-events:none}.pipes--wide{display:none}.pipes--floor{flex:none;margin-top:auto;height:clamp(65px,17.37vw,81px)}.pipes__wall,.pipes__bore,.pipes__line,.pipes__arc{fill:none}.pipes__wall,.pipes__line{stroke:var(--ink)}.pipes__bore{stroke:var(--page)}.pipes__fitting{fill:var(--page);stroke:var(--ink)}.pipes__arc{stroke:var(--hot)}.pipes__hub{fill:var(--ink)}.pipes__lever{transform-box:fill-box;transform-origin:center}.pipes__lever--hot,.pipes__mark--hot{fill:var(--hot)}.pipes__lever--cold,.pipes__mark--cold{fill:var(--cold)}.pipes__needle{transform-box:fill-box;transform-origin:0 100%}@media(prefers-reduced-motion:no-preference){.pipes__run{stroke-dasharray:1;stroke-dashoffset:1;animation:pipes-draw 1.2s var(--ease-out) .15s forwards}.pipes--wide .pipes__run{animation-duration:2.7s;animation-timing-function:linear}.pipes--floor .pipes__run{animation:pipes-draw 1.3s cubic-bezier(.45,0,.55,1) 1.1s forwards}.pipes__fit,.pipes__valve{opacity:0;animation:pipes-show .3s ease-out var(--at, 1s) forwards}.pipes__lever{transform:rotate(90deg);animation:pipes-open .24s var(--ease) 1.3s forwards}.pipes__valve+.pipes__valve .pipes__lever{animation-delay:1.42s}.pipes__needle{animation:pipes-gauge 1s cubic-bezier(.22,.8,.3,1) 1.2s both}.pipes--wide .pipes__lever{animation-delay:.9s}.pipes--wide .pipes__valve+.pipes__valve .pipes__lever{animation-delay:1.02s}.pipes--wide .pipes__needle{animation-delay:1s}}@keyframes pipes-draw{to{stroke-dashoffset:0}}@keyframes pipes-show{to{opacity:1}}@keyframes pipes-open{to{transform:rotate(0)}}@keyframes pipes-gauge{0%{transform:rotate(-165deg)}}.hero__copy{position:relative;z-index:var(--z-copy);padding-top:clamp(1.5rem,6vw,2.25rem);padding-bottom:clamp(1.75rem,7vw,2.5rem)}.hero__line{display:block}.hero__lead{margin-top:clamp(1rem,3.5vw,1.5rem);max-width:30rem;text-wrap:pretty}.hero__actions{display:flex;align-items:center;margin-top:clamp(.75rem,3vw,1.25rem)}.hero__facts{display:grid;gap:.7rem;max-width:46rem;margin:clamp(1.5rem,4.5vw,2rem) 0 0;padding:clamp(1.1rem,3.5vw,1.4rem) 0 0;border-top:1px solid var(--line);list-style:none}.hero__facts li{display:flex;align-items:stretch;gap:.85rem;font-size:clamp(1.0625rem,.95rem + .5vw,1.375rem);font-weight:var(--weight-strong);line-height:1.3;letter-spacing:-.005em;color:var(--ink);text-wrap:pretty}.hero__facts li:before{content:"";flex:none;width:8px;background:linear-gradient(90deg,var(--hot) 0 2px,transparent 2px 6px,var(--cold) 6px 8px)}@media(min-width:1024px){.hero__stage{justify-content:center;min-height:max(560px,calc(100svh - var(--header-h)));overflow:hidden}.hero__art{position:absolute;right:0;bottom:0;left:57%;height:min(100%,1000px);border-bottom:0;overflow:visible}.pipes--wide{display:block;overflow:visible}.pipes--compact,.pipes--floor{display:none}.hero__facts{max-width:min(46rem,57vw - var(--gutter) - 2rem)}.hero__copy{padding-top:clamp(3rem,8vh,4.5rem);padding-bottom:calc(min(7.42vw,107px) + 1.75rem)}}.services{padding-block:clamp(2.75rem,7vw,5.5rem) clamp(3rem,8vw,6.5rem);scroll-margin-top:var(--header-h);overflow-x:clip}.services__head{max-width:46rem}.services__intro{margin:clamp(.5rem,1.5vw,1rem) 0 0;font-size:var(--step-intro);line-height:1.45;color:var(--body)}.services__grid{display:grid;gap:.75rem;margin-top:clamp(1.5rem,4vw,2.5rem)}.photo-band{--band-gap: clamp(20px, 4.4vw, 64px);--joint-scale: 1;margin:clamp(1.25rem,3vw,2rem) 0 0}.photo-band__frames{display:grid;grid-template-columns:212fr 232fr 300fr 228fr 245fr;column-gap:var(--band-gap);align-items:end}.photo-band__frame{position:relative;min-width:0}.photo-band__photo{display:block;aspect-ratio:var(--wide);overflow:hidden;border-radius:2px;background:var(--line)}.photo-band__photo img{display:block;width:100%;height:100%;object-fit:cover}.photo-band__stage{position:absolute;left:0;top:calc(100% + 9px + .55rem);white-space:nowrap}.photo-band__pipe{position:relative;height:9px;margin-right:calc(-1 * var(--gutter) - max(0px,(100vw - var(--shell)) / 2))}.photo-band__pipe svg{position:absolute;display:block;overflow:visible}.photo-band__pipe-line{inset:0;width:100%;height:100%}.photo-band__pipe-cap{left:-1px;top:-4px}.photo-band__pipe rect,.photo-band__joint rect{fill:var(--surface)}.photo-band__pipe rect,.photo-band__pipe path,.photo-band__joint rect,.photo-band__joint path{stroke:var(--ink);stroke-width:1.6px}.photo-band__pipe-line rect{stroke:none}.photo-band__joint{position:absolute;z-index:1;left:calc(var(--band-gap) / -2);top:calc(100% - 19px * var(--joint-scale));transform:translate(-50%);overflow:visible}.photo-band__joint--coupling{width:calc(14px * var(--joint-scale))}.photo-band__joint--valve{width:calc(24px * var(--joint-scale))}.photo-band__joint .photo-band__handle{stroke-width:4px;stroke-linecap:round}.photo-band__joint--valve-hot .photo-band__handle{stroke:var(--hot)}.photo-band__joint--valve-cold .photo-band__handle{stroke:var(--cold)}.photo-band__note{margin-top:.55rem;min-height:1.1rem;font-size:var(--step-micro);line-height:1.4;color:var(--muted);text-align:right}@media(max-width:599px){.photo-band{--band-gap: 16px;--joint-scale: .72}.photo-band__frames{grid-template-columns:repeat(3,minmax(0,1fr))}.photo-band__frame--wide-only{display:none}.photo-band__photo{aspect-ratio:var(--tight)}.photo-band__note{margin-top:2rem}}.service-card{--art-size: 64px;--art-sw: 3.4px;display:grid;grid-template-columns:var(--art-size) minmax(0,1fr);grid-template-areas:"art title" "intro intro" "list list" 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li{padding:.8rem 0;font-size:1.0625rem}}.projects__layout{display:grid;gap:clamp(1.25rem,3vw,2rem);grid-template-areas:"head" "sheet" "block"}.projects__head{grid-area:head;display:grid;gap:clamp(.75rem,1.6vw,1.1rem);align-content:start}.projects__title{font-size:var(--step-h2)}.projects__note{margin:0;max-width:38ch;color:var(--muted);font-size:.9375rem;line-height:1.5}.projects__compare{grid-area:sheet}.compare{min-width:0}.compare__frame{position:relative;aspect-ratio:var(--ratio);overflow:hidden;border-radius:2px;background:var(--line);cursor:ew-resize;touch-action:pan-y;user-select:none;-webkit-user-select:none;-webkit-tap-highlight-color:transparent}.compare__layer,.compare__layer picture,.compare__layer img{position:absolute;inset:0;display:block;width:100%;height:100%}.compare__layer img{object-fit:cover;-webkit-user-drag:none}.compare__layer--before{clip-path:inset(0 calc(100% - var(--pos)) 0 0)}.compare__rail{position:absolute;inset:0;transform:translate(calc(var(--pos) - 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var(--line);border-radius:2px;background:var(--surface);color:var(--ink);font:inherit;outline:none;transition:border-color .18s var(--ease-out),box-shadow .18s var(--ease-out);scroll-margin-top:calc(var(--header-h) + 2.5rem)}.form-field textarea{min-height:160px;resize:vertical;line-height:1.55}.form-field input:focus,.form-field textarea:focus{border-color:var(--ink);box-shadow:inset 3px 0 0 var(--accent)}.form-field input[aria-invalid=true],.form-field textarea[aria-invalid=true]{border-color:var(--error)}.form-field small{color:var(--error);font-size:.82rem}.form-field textarea::placeholder{color:var(--muted);opacity:1}.contact-form__upload{display:grid;justify-items:start}.contact-form__upload>:not(:first-child):not(:empty){margin-top:.75rem}.contact-form__optional{color:var(--muted);font-weight:400;letter-spacing:.08em;text-transform:none}.upload-control{position:relative;cursor:pointer}.upload-control input{position:absolute;width:1px;height:1px;opacity:0}.upload-control span{display:inline-flex;align-items:center;min-height:44px;padding:0 1.25rem;border:1.25px solid var(--ink);border-radius:3px;font-size:.9375rem;font-weight:var(--weight-strong)}.upload-control input:focus-visible+span{outline:2px solid var(--accent);outline-offset:3px}.contact-form__photo-notes{display:grid;gap:.3rem;color:var(--error);font-size:.86rem}.contact-form__photo-notes p{margin:0;overflow-wrap:anywhere}.contact-form__count{margin:0;font-size:.86rem}.contact-form__count strong{color:var(--ink);font-weight:500}.contact-form__files{justify-self:stretch;max-width:34rem;margin:0;padding:0;list-style:none;border-top:1px solid var(--line)}.contact-form__files li{display:flex;align-items:center;gap:1rem;min-height:44px;border-bottom:1px solid var(--line);color:var(--ink);font-size:.9375rem}.contact-form__file-name{flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.contact-form__file-remove{flex:none;min-height:44px;padding:0 .25rem;border:0;background:none;color:var(--ink);font:inherit;text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:4px;cursor:pointer;transition:text-decoration-color .18s var(--ease)}.contact-form__file-remove:hover{text-decoration-color:currentColor}.contact-form__submit{border:0;justify-self:start}.contact-form__note{margin:-.8rem 0 0;color:var(--muted);font-size:.86rem}.contact-form__status{display:none;padding:1rem 0 1rem 1.1rem;border-left:2px solid var(--accent);color:var(--body)}.contact-form__status[data-visible=true]{display:block;animation:contact-status-in .2s var(--ease-out)}.contact-form__status strong{color:var(--ink);font-size:var(--step-label);letter-spacing:var(--track-label);text-transform:uppercase}.contact-form__status p{margin:.35rem 0 0;max-width:54ch}@keyframes contact-status-in{0%{opacity:0;transform:translateY(4px)}}@media(min-width:861px){.contact__inner{grid-template-columns:minmax(0,.72fr) minmax(0,1fr)}.contact__copy{position:sticky;top:calc(var(--header-h) + 2rem)}.contact-form__row{grid-template-columns:1fr 1fr}}@media(max-width:600px){.upload-control{justify-self:stretch}.upload-control span{width:100%;justify-content:center}}@media(prefers-reduced-motion:reduce){.contact-form__status[data-visible=true]{animation:none}}